FR2588956A1 - Pneumatic level tester using the opening of the flap of a valve and applicable as a safety device in pressurised tanks - Google Patents
Pneumatic level tester using the opening of the flap of a valve and applicable as a safety device in pressurised tanks Download PDFInfo
- Publication number
- FR2588956A1 FR2588956A1 FR8515557A FR8515557A FR2588956A1 FR 2588956 A1 FR2588956 A1 FR 2588956A1 FR 8515557 A FR8515557 A FR 8515557A FR 8515557 A FR8515557 A FR 8515557A FR 2588956 A1 FR2588956 A1 FR 2588956A1
- Authority
- FR
- France
- Prior art keywords
- rod
- valve
- plug
- flap
- axis
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
Abstract
Description
La présente invention concerne un controleur pneumatique de niveau applicable par exemple comme système de sécurité sur des réservoirs sous pression dans lesquels les niveaux seraient anormalement hauts ou bas. Ce controleur de niveau est caractérisé en ce qu'un flotteur monté en bout d'une tige actionne un axe sur lequel est fixé un levier qui lui même manoeuvre une valve. Cet ensemble eat installé sur une pièce percée d'un trou borgne et filetée à une extrémité pour sa fixation par vissage sur les réservoirs sous pression. L'étanchéité sur l'axe est assurée au moyen de joints toriques. The present invention relates to a pneumatic level controller applicable for example as a safety system on pressure tanks in which the levels are abnormally high or low. This level controller is characterized in that a float mounted at the end of a rod actuates an axis on which is fixed a lever which itself operates a valve. This set is installed on a piece pierced with a blind hole and threaded at one end for fixing by screwing on the pressure tanks. The tightness on the axis is ensured by means of O-rings.
Les applications sont particulièrement destinées à l'industrie pétrolière et chimique. The applications are particularly intended for the oil and chemical industry.
Les appareils déjà existants ont pour inconvénient de ne pas toujours répondre aux besoins pour les raisons suivantes: - manque de fiabilité en cas de longue distance entre le capteur de fuite destiné à enregistrer le défaut de niveau et la valve du controleur dont l'orifice dus mise à l'atmosphère est de très petit diamètres - pression de fonctionnement limité sun-leaDrésermoirs sous haute pression pour les modèles de diamètre type "un pouce" en raison de la faible épaisseur de métal laissée entre le filetage et le trou borgne qui renferme l'axe. The existing devices have the disadvantage of not always meet the needs for the following reasons: - unreliability in case of long distance between the leak sensor for recording the level defect and the valve of the controller whose orifice due venting is of very small diameters - limited operating pressure sun-leaHigh-pressure molders for "one-inch" diameter models due to the small thickness of metal left between the thread and the blind hole that encloses the 'axis.
- détérioration parfois rapide en raison du mode de fixation de la valve sur l'appareil.- deterioration sometimes fast because of the way of fixing the valve on the device.
- changement difficile de la valve en cas de détérioration en raison de l'inaccessibilité des vis de fixation lorsque les appareils sont vissés sur une bride.- difficult change of the valve in case of deterioration due to the inaccessibility of the fixing screws when the devices are screwed on a flange.
- grand débattement du flotteur qui implique des piquages et des brides de gros diamètre sur les réservoirs.- great movement of the float which involves connections and large diameter flanges on the tanks.
La présente invention permet de remédier aux inconvénients cités ci-dessus mais aussi il a pour avantage d'être peu encombrant, d'être d'un principe simple et d'êtlte sensible grace au au faible débattement de la tige du flotteur. The present invention overcomes the drawbacks mentioned above but also has the advantage of being compact, to be of a simple principle and is sensitive due to the low movement of the float rod.
Actuellement il n'existe pas de fabrication équivalente. Currently there is no equivalent manufacturing.
Ct appareil selon l'invention est caractérisé par: - un dispositif de manoeuvre du clapet de la valve au moyen d'un ensemble de pièces constitué d'un bouchon percé d'un trou dans l'axe, d'une tige coulissante dans le bouchon selon son axe et d'un joint torique placé sur la tige entre le bouchon et la tête de la tige. Ct apparatus according to the invention is characterized by: - a device for operating the valve of the valve by means of a set of parts consisting of a plug pierced with a hole in the axis, a sliding rod in the cap along its axis and an O-ring placed on the rod between the cap and the head of the rod.
- un dispositif constitué d'un joint torique disposé en arrière de la teste de la tige de la valve de manière à assurer une étanchéité lorsqu'il est appliqué avec la tête de la tige contre le bouchon pourvu à cet effet d'un fraisage de forme conique.- A device consisting of an O-ring disposed behind the head of the valve stem so as to seal when it is applied with the head of the rod against the plug provided for this purpose with a milling of conical shape.
- un dispositif constitué d'un cavalier muni d'une vis de ré glage, monté à une extrémité d'un axe de façon à actionner la tige de la valve en cas de variation de niveau - un dispositif caractérisé par une cornière fixée à un corps par deux vis pour supporter une valve dont la fixation est as sur rée par un boulon et un cavalier.- a device consisting of a jumper fitted with a setting screw, mounted at one end of an axis so as to actuate the valve stem in case of level variation - a device characterized by an angle fixed to a body by two screws to support a valve whose fixing is as a result by a bolt and a rider.
La figure I représente l'ensemble de l'appareil en vue de desua avec une coupe partielle du corps. Figure I shows the entire apparatus for desua with a partial section of the body.
La figure 2 représente l'ensemble de l'appareil de profil avec une coupe partielle de la valve. Figure 2 shows the whole of the profile apparatus with a partial section of the valve.
nans les deux cas chaque figure est représentée avec une portion de la tige du flotteur et sans flotteur. In both cases each figure is represented with a portion of the float rod and without float.
Cet appareil selon l'invention comprend: - un corp (I) de section hexagonale fileté à une extrémité, percé dans le sens de la longueur d'un trou (I6) borgne et percé latéralement de deux trous taraudés (I7)(I7'). This apparatus according to the invention comprises: - a body (I) of hexagonal section threaded at one end, pierced in the longitudinal direction of a hole (I6) blind and pierced laterally by two threaded holes (I7) (I7 ' ).
- un axe (2) avec quatre gorges (22) pour recevoir quatre joints toriques (II) et un trou (18) central fileté pour recevoir la tige (I3) d'un flotteur. - An axis (2) with four grooves (22) to receive four O-rings (II) and a hole (18) threaded central to receive the rod (I3) of a float.
- deux presse étoupes (3) vissés de part et d'autre du corps (I)
dans les trous taraudés (17)(I7')pour assurer l'étanchéité avec
les joints toriques (Il) de l'axe (2). - two glands (3) screwed on both sides of the body (I)
in the threaded holes (17) (I7 ') to seal with
the O-rings (II) of the shaft (2).
- un cavalier t43 équipé d'une vis de réglage (5) et monté sur
une extrémité de l'axe (2) munie,à cet effet de deux méplats;
la vis (5) étant disposée de façon excentrée par rapport à
l'axe (2).- a jumper t43 equipped with a set screw (5) and mounted on
an end of the axis (2) provided for this purpose with two flats;
the screw (5) being arranged eccentrically with respect to
the axis (2).
- une valve (6) équipée d'un bouchon (7) percé dans l'axe et une
tige (8) avec tête (8') pour actionner le clapet (I9) à travers
le bouchon (7).- a valve (6) equipped with a plug (7) drilled in the axis and a
rod (8) with head (8 ') for actuating the valve (I9) through
the plug (7).
- une cornière (9) pour supporter la valve (6) sur le corps (I)* - un cavalier (I0) et un boulon (I5) pour maintenir la valve (6)
sur la cornière (9).- an angle (9) to support the valve (6) on the body (I) * - a jumper (I0) and a bolt (I5) to hold the valve (6)
on the angle (9).
Lorsque le flotteur change de position à la suite d'une
variation de niveau il entraîne la tige (13) dans un mouvement
angulaire (o < ) et l'axe (2) dans un mouvement de rotation. Le
cavalier (4) solidaire de l'axe (2) amène la vis de réglage (5)
contre la tette (8') et pousse la tige (8) vers l'intérieur de
la valve (6) à travers le bouchon (7). En coulissant dans le
bouchon (7) la tige (8) ouvre- le clapet (I9) de la valve (6).When the float changes position as a result of a
variation of level it drives the rod (13) in a movement
angular (o <) and the axis (2) in a rotational movement. The
jumper (4) secured to the shaft (2) carries the adjusting screw (5)
against the teat (8 ') and pushes the rod (8) towards the inside of
the valve (6) through the plug (7). Sliding in
plug (7) the rod (8) opens the valve (I9) of the valve (6).
La valve (6) est de type connu et elle est pourvue en arrière
de la tête (8') de la tige (8) d'un joint torique (12) venant
en appui sur un logement conique (21) prévu sur le bouchon (7)
pour assurer l'étanchéité au niveau du bouchon lorsque la tige
est enfoncée sous la poussée de la vis (5). The valve (6) is of known type and is provided back
of the head (8 ') of the rod (8) of an O-ring (12) coming
resting on a conical housing (21) provided on the plug (7)
to seal the plug when the stem
is depressed under the thrust of the screw (5).
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8515557A FR2588956B1 (en) | 1985-10-21 | 1985-10-21 | PNEUMATIC LEVEL CONTROLLER BY OPENING THE VALVE OF A VALVE APPLICABLE AS SAFETY ON PRESSURE TANKS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8515557A FR2588956B1 (en) | 1985-10-21 | 1985-10-21 | PNEUMATIC LEVEL CONTROLLER BY OPENING THE VALVE OF A VALVE APPLICABLE AS SAFETY ON PRESSURE TANKS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2588956A1 true FR2588956A1 (en) | 1987-04-24 |
| FR2588956B1 FR2588956B1 (en) | 1987-12-11 |
Family
ID=9324019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8515557A Expired FR2588956B1 (en) | 1985-10-21 | 1985-10-21 | PNEUMATIC LEVEL CONTROLLER BY OPENING THE VALVE OF A VALVE APPLICABLE AS SAFETY ON PRESSURE TANKS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2588956B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1872563A (en) * | 1927-10-21 | 1932-08-16 | Frank M Roby | Low water alarm |
| US2227405A (en) * | 1938-09-30 | 1940-12-31 | Reliance Gauge Column Company | Plural valve control |
| FR1146750A (en) * | 1955-02-03 | 1957-11-14 | Flight Refueling Ltd | Improvements made to electrical switches and their control devices |
| FR2293802A1 (en) * | 1974-12-02 | 1976-07-02 | Varta Batterie | DEVICE FOR ADJUSTING THE ELECTROLYTE LEVEL IN ACCUMULATORS |
| US4181021A (en) * | 1978-07-28 | 1980-01-01 | Combustion Engineering, Inc. | Position transmitter |
-
1985
- 1985-10-21 FR FR8515557A patent/FR2588956B1/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1872563A (en) * | 1927-10-21 | 1932-08-16 | Frank M Roby | Low water alarm |
| US2227405A (en) * | 1938-09-30 | 1940-12-31 | Reliance Gauge Column Company | Plural valve control |
| FR1146750A (en) * | 1955-02-03 | 1957-11-14 | Flight Refueling Ltd | Improvements made to electrical switches and their control devices |
| FR2293802A1 (en) * | 1974-12-02 | 1976-07-02 | Varta Batterie | DEVICE FOR ADJUSTING THE ELECTROLYTE LEVEL IN ACCUMULATORS |
| US4181021A (en) * | 1978-07-28 | 1980-01-01 | Combustion Engineering, Inc. | Position transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2588956B1 (en) | 1987-12-11 |
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| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |