FR2498284A3 - Pressure release valve with T=shaped case - has halves containing sprung closing piston and connecting to circuit which forms outlet - Google Patents

Pressure release valve with T=shaped case - has halves containing sprung closing piston and connecting to circuit which forms outlet Download PDF

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Publication number
FR2498284A3
FR2498284A3 FR8200433A FR8200433A FR2498284A3 FR 2498284 A3 FR2498284 A3 FR 2498284A3 FR 8200433 A FR8200433 A FR 8200433A FR 8200433 A FR8200433 A FR 8200433A FR 2498284 A3 FR2498284 A3 FR 2498284A3
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FR
France
Prior art keywords
piston
spring
socket
halves
stage
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
Application number
FR8200433A
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French (fr)
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FR2498284B3 (en
Inventor
Jose Maria Mugica Toledo
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Copreci SCL
Original Assignee
Copreci SCL
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Publication date
Application filed by Copreci SCL filed Critical Copreci SCL
Publication of FR2498284A3 publication Critical patent/FR2498284A3/en
Application granted granted Critical
Publication of FR2498284B3 publication Critical patent/FR2498284B3/fr
Granted legal-status Critical Current

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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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/088—Draining arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves

Abstract

The pressure-release valve is for use on a hot water-heating plant, and comprises a 'T' shaped housing with respective halves (3,2) locating a closing piston (4) and connecting the plant. The stem has an outlet (5), and a step in the top provides a seat (6) locating an elastic seal (7) mounted on the piston. The step is upstream of the outlet and the piston can retract against a coil spring (13). A cover (9) may screw into the housing after the piston to wedge the outer edge of an annular gasket (10) onto a housing shoulder, the inner edge of the gasket being wedged by a sleeve (11) secured by the spring. Finally a cap (19) may screw into the cover to secure the spring, whilst accommodating a manual over-ride piston-rod (16).

Description

La présente invention concerne une soupape de sûreté qui a été conçue spécialement pour des installations de chauffage à eau chaude et qui est destinée 9 l'ouverture du circuit d'eau lorsque la pression de celle-ci dépasse une valeur prédéterminée sous l'effet de l'augmentation de température au-dessus de niveaux également prédéterminés. Cette ouverture du circuit évite que la surpression existante dans celui-ci ne puisse donner lieu à une explosion. The present invention relates to a safety valve which has been specially designed for hot water heating installations and which is intended for opening the water circuit when the pressure thereof exceeds a predetermined value under the effect of temperature increase above also predetermined levels. This opening of the circuit prevents the overpressure existing therein from giving rise to an explosion.

La soupape de sûreté selon l'invention est constituée fondamentalement par un corps pourvu d'un orifice en T, de façon que l'une des deux moitiés de la barre horizontale du té constitue l'orifice de liaison à l'installation qui est fermé au moyen d'un piston obturateur logé dans l'autre moitié de la barre du té, tandis que la branche centrale de cet orifice en T constitue l'orifice de vidange Cette obturation de la première branche du té qui correspond à l'orifice de liaison à l'installation est réalisée par un étagement existant dans cette première moitié de la barre du té, qui constitue une surface d'appui pour un joint élastique situé sur la partie avant du piston d'obturation, ce joint élastique étant situé naturellement avant la conduite latérale de vidange. The safety valve according to the invention basically consists of a body provided with a T-hole, so that one of the two halves of the horizontal bar of the tee constitutes the connection hole to the installation which is closed by means of a shutter piston housed in the other half of the tee bar, while the central branch of this T-shaped orifice constitutes the drain orifice This obturation of the first branch of the tee which corresponds to the orifice of connection to the installation is carried out by a stage existing in this first half of the tee bar, which constitutes a bearing surface for an elastic seal situated on the front part of the obturation piston, this elastic seal being situated naturally before the side drain line.

Le piston obturateur installé dans le corps de soupape a la possibilité de se déplacer en sens axial en s'opposant à la force d'un ressort, de telle façon que, ce ressort étant taré de façon approprié, la force du ressort soit surmontée lorsqu'il existe dans l'installation une pression supérieure à une valeur prédéterminée. The obturator piston installed in the valve body has the possibility of moving axially opposing the force of a spring, so that, this spring being suitably calibrated, the force of the spring is overcome when 'there is a pressure in the installation higher than a predetermined value.

Dans l'embouchure du corps de la soupape opposée à celle de liaison à l'installation, il existe un second corps qui est fixé au premier au moyen d'un filetage avec interposition d'un joint torique, le bord interne de ce joint torique étant fixé à son tour sur le piston obturateur, de telle façon que les mécanismes élastiques d'ouverture de la soupape soient isolés hermétiquement de l'embouchure de liaison et de vidange, de façon permanente.In the mouth of the valve body opposite that of the connection to the installation, there is a second body which is fixed to the first by means of a thread with interposition of an O-ring, the internal edge of this O-ring. being fixed in turn on the shutter piston, so that the elastic mechanisms for opening the valve are hermetically isolated from the connecting and draining mouth, permanently.

Sur ce second corps est montée une douille de fermeture sur laquelle s'appuie le ressort de poussée du piston, le corps et la douille étan= reliés par un filetage, ce qui fait que ces éléments peuvent Entre rapprochés ou éloignés l'un par rapport à l'autre, pôur faire varier la force avec laquelle le ressort agit sur le piston.  On this second body is mounted a closing sleeve on which the piston pushing spring rests, the body and the etan sleeve = connected by a thread, which means that these elements can be brought close together or distant from each other. to the other, to vary the force with which the spring acts on the piston.

Cet ensemble, c'est-S-dire le second corps et sa douille de fermeture, sont dament protées par un couvercle duquel dépasse axialement une tige associée a l'intérieur du couvercle à un piston et qui est reliée a ltextérieur h un levier qui permet l'ouverture manuelle de la soupape en cas de besoin. This assembly, that is to say the second body and its closing sleeve, is damentally protected by a cover from which protrudes axially a rod associated inside the cover with a piston and which is connected inside a lever which allows manual opening of the valve if necessary.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'un exemple de réalisation et en se référant au dessin annexé, dans lequel :
- la figure unique représente à titre illustratif et sans carectère limitatif, une vue en élévation latérale et en section diamétrale de la soupape de rareté qui constitue l'objet de la présente invention.Other characteristics and advantages of the invention will be better understood on reading the description which follows of an exemplary embodiment and with reference to the appended drawing, in which:
- The single figure shows by way of illustration and without limitation, a side elevation view and in diametral section of the rarity valve which constitutes the object of the present invention.

Dans cette figure,-on peut voir que la soupape en question est constituée par un corps 1 doté d'un orifice en forme de
T dont l'une des deux moitiés 2 de sa barre horizontale constitue la conduite de liaison l'installation, l'autre moitié 3 constitue le logement du piston obturateur 4 tandis que sa branche centrale 5 constitue la conduite de purge de la soupape.In this figure, it can be seen that the valve in question is constituted by a body 1 provided with an orifice in the form of
T of which one of the two halves 2 of its horizontal bar constitutes the pipe for connecting the installation, the other half 3 constitutes the housing of the shut-off piston 4 while its central branch 5 constitutes the pipe for purging the valve.

Sur la partie 2 du té et avant la conduite de purge 5 est formé un étagement qui constitue une surface d'appui 6 sur laquelle est situé un joint élastique 7 associé à la surface du piston 4 et qui constitue une fermeture parfaite de la conduite 2. On the part 2 of the tee and before the purge pipe 5 is formed a stage which constitutes a bearing surface 6 on which is located an elastic seal 7 associated with the surface of the piston 4 and which constitutes a perfect closure of the pipe 2 .

Sur la partie 8 du corps 1 opposé a la conduite de liaison 2, est monté au moyen d'un filetage un second corps 9 qui comprime au cours de son montage sur le premier un joint annulaire ou joint torique 10 dont le bord interne est fixé parfaitement au piston 4 avec la collaboration d'une douille 11 montée sur ce piston, comme on peut le voir dans la figure, le tout de telle façon que ce joint 10 assure la fermeture hermétique parfaite de la zone correspondant au mécanisme de pression sur le piston 4 de l'orifice 2 et de la vidange 5. On the part 8 of the body 1 opposite the connecting pipe 2, is mounted by means of a thread a second body 9 which compresses during its assembly on the first an annular seal or O-ring 10 whose internal edge is fixed perfectly to the piston 4 with the collaboration of a sleeve 11 mounted on this piston, as can be seen in the figure, all in such a way that this seal 10 ensures the perfect hermetic closure of the zone corresponding to the pressure mechanism on the piston 4 of port 2 and drain 5.

Cette méme douille 11 qui serre contre le piston 4 le joint 10 comporte une cavité frontale 12 dans laquelle repose l'extrémité correspondante d'un ressort 13 chargé d'appliquer sous pression le piston 4, et par conséquent le joint élastique 7, contre son siège 6.  This same bushing 11 which clamps against the piston 4 the seal 10 comprises a front cavity 12 in which the corresponding end of a spring 13 rests responsible for applying under pressure the piston 4, and consequently the elastic seal 7, against its seat 6.

Le ressort 13 repose par son extrémité opposée dans une douille 14 qui est vissée sur le second corps 9, de telle façon que la rotation relative entre la douille 14 et le second corps 9 provoque une tension plus ou moins importante du ressort 13, et, par conséquent, une pression plus ou moins importante du piston 4 contre le siège 6 situé dans l'embouchure 2, ce qui permet de faire varier la pression d'ouverture de la soupape. The spring 13 rests by its opposite end in a socket 14 which is screwed onto the second body 9, so that the relative rotation between the socket 14 and the second body 9 causes a more or less significant tension of the spring 13, and, consequently, a more or less significant pressure of the piston 4 against the seat 6 located in the mouth 2, which makes it possible to vary the opening pressure of the valve.

Sur la douille 14 est monté un couvercle 15 relié au corps 1 et qui recouvre les mécanismes décrits. On the sleeve 14 is mounted a cover 15 connected to the body 1 and which covers the mechanisms described.

Le piston 4 est solidaire d'une tige 16 qui traverse en sens axial le ressort 13, la douille 14 et le couvercle 15, et qui dépasse à l'extérieur, étant associé à un levier 17 au moyen d'un boulon 18, ce levier 17 étant destiné à permettre l'ouverture manuelle à volonté de la soupape, lorsque cette opération est nécessaire. The piston 4 is integral with a rod 16 which passes axially through the spring 13, the bush 14 and the cover 15, and which projects outside, being associated with a lever 17 by means of a bolt 18, this lever 17 being intended to allow manual opening at will of the valve, when this operation is necessary.

Finalement, il convient de faire ressortir également le fait que le corps 1, en correspondance avec la conduite 2 de liaison à l'installation, comporte un autre orifice latéral 19 qui s'élargit pour prendre la forme d'un raccord 20 de liaison d'un manomètre qui permettra à tout moment de contrôler la pression de l'installation. Finally, it should also be pointed out that the body 1, in correspondence with the pipe 2 for connection to the installation, has another lateral orifice 19 which widens to take the form of a connection 20 of connection d '' a pressure gauge which will allow you to check the system pressure at any time.

Bien entendu, diverses modifications peuvent etre apportées par l'homme de l'art aux dispositifs ou procédés qui viennent d'entre décrits uniquement à titre d'exemple non limitatif, sans sortir du cadre de l'invention.  Of course, various modifications can be made by those skilled in the art to the devices or methods which come from described only by way of nonlimiting example, without departing from the scope of the invention.

Claims (4)

REVENDICATIONS 1. Soupape de sûreté, spécialement conçue pour des installations de chauffage par eau chaude, caractérisée en ce- qu'elle est constituée par un corps (1) doté d'un orifice en forme de T dont l'une des moitiés (2) de la barre du té constitue la conduite de ;Liaison 8 l'installation, l'autre moitié (3) contient le piston obturateur (4) et la branche centrale (5) constitue orifice de vidange, avec la particularité qui consiste en ce que, entre les deux moitiés de la barre du tébil il existe un étagement qui forme un siège (6) pour un joint élastique (7) situé sur la face avant du piston obturateur (4), qui est situé avant la conduite de vidange, étant prévu que le piston en question puisse se déplacer en sens axial dans le sens opposé å celui de la force du ressort.1. Safety valve, specially designed for hot water heating installations, characterized in that it consists of a body (1) provided with a T-shaped orifice, one of the halves of which (2) of the tee bar constitutes the pipe for; Connection 8 the installation, the other half (3) contains the shutter piston (4) and the central branch (5) constitutes the drain orifice, with the particularity that consists in that , between the two halves of the tébil bar there is a stage which forms a seat (6) for an elastic seal (7) located on the front face of the shut-off piston (4), which is located before the drain pipe, being provided that the piston in question can move axially in the opposite direction to that of the spring force. 2. Soupape de sflreté selon la revendication 1, caractérisé en ce que sur l'embouchure du corps opposée h celle de connexion a l'installaff oa est installé, au moyen d'un filetage, un second corps (9) qui serre contre le premier un joint torique (10) dout le bord interne est fixé à son tour sur le piston obturateur (4) au moyen d'un étagement qui existe A son extrémité opposée à l'extrémité active et avec la collaboration d'une-douille (11) qui s'appuie sur cet étagement, étant prévu que cette douille comporte une cavité frontale (12) sur laquelle s'appuie a son tour le ressort (13).2. Safety valve according to claim 1, characterized in that on the mouth of the body opposite to that of connection to the installaff oa is installed, by means of a thread, a second body (9) which clamps against the first an O-ring (10) dout the internal edge is fixed in turn on the shutter piston (4) by means of a stage which exists at its end opposite to the active end and with the collaboration of a-socket ( 11) which is supported on this stage, it being provided that this socket has a front cavity (12) on which the spring (13) in turn is supported. 3. Soupape de surjeté selon la revendication 1 ou 2, caractérisée en ce que l'autre extrémité du ressort (13)- repose sur une seconde douille(l4) vissée sur l'extrémité libre du second corps (9), cette douille étant traversée par un axe qui relie le piston obturateur au levier d'ouverture de la soupape, et auquel est associé un couvercle de fermeture du second corps.3. Overlock valve according to claim 1 or 2, characterized in that the other end of the spring (13) - rests on a second bush (14) screwed onto the free end of the second body (9), this bush being crossed by an axis which connects the shutter piston to the valve opening lever, and with which is associated a closure cover of the second body. 4. Soupape de sûreté selon l'une quelconque des revendications précédentes, caractérisée- en ce que la position de la seconde douille (14) par rapport au second corps (9) est réglable a volonté gracie au filetage de liaison entre ces deux éléments, ce qui permet de faire varier la distance entre l-es extrémités du ressort et, parconséquent, la pression limite d'ouverture de la soupape. 4. Safety valve according to any one of the preceding claims, characterized in that the position of the second socket (14) relative to the second body (9) is adjustable at will thanks to the connection thread between these two elements, which allows to vary the distance between the ends of the spring and, consequently, the opening pressure limit of the valve.
FR8200433A 1981-01-22 1982-01-13 Pressure release valve with T=shaped case - has halves containing sprung closing piston and connecting to circuit which forms outlet Granted FR2498284A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1981255725U ES255725Y (en) 1981-01-22 1981-01-22 SECURITY VALVE

Publications (2)

Publication Number Publication Date
FR2498284A3 true FR2498284A3 (en) 1982-07-23
FR2498284B3 FR2498284B3 (en) 1983-01-14

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ID=8412809

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8200433A Granted FR2498284A3 (en) 1981-01-22 1982-01-13 Pressure release valve with T=shaped case - has halves containing sprung closing piston and connecting to circuit which forms outlet

Country Status (2)

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ES (1) ES255725Y (en)
FR (1) FR2498284A3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504084A1 (en) * 1991-03-14 1992-09-16 Comap Membrane safety valve
CN105241607A (en) * 2015-05-25 2016-01-13 苏州市华安普电力工程有限公司 Pressure release testing device
CN108266552A (en) * 2018-01-24 2018-07-10 高特控股集团有限公司 A kind of water-saving valve protective device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504084A1 (en) * 1991-03-14 1992-09-16 Comap Membrane safety valve
FR2673993A1 (en) * 1991-03-14 1992-09-18 Comap MEMBRANE SAFETY VALVE.
CN105241607A (en) * 2015-05-25 2016-01-13 苏州市华安普电力工程有限公司 Pressure release testing device
CN108266552A (en) * 2018-01-24 2018-07-10 高特控股集团有限公司 A kind of water-saving valve protective device

Also Published As

Publication number Publication date
ES255725U (en) 1981-10-16
ES255725Y (en) 1982-04-16
FR2498284B3 (en) 1983-01-14

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