FR2543649A1 - Discharge valve with differential pressure - Google Patents

Discharge valve with differential pressure Download PDF

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Publication number
FR2543649A1
FR2543649A1 FR8305197A FR8305197A FR2543649A1 FR 2543649 A1 FR2543649 A1 FR 2543649A1 FR 8305197 A FR8305197 A FR 8305197A FR 8305197 A FR8305197 A FR 8305197A FR 2543649 A1 FR2543649 A1 FR 2543649A1
Authority
FR
France
Prior art keywords
differential pressure
valve
function
relief valve
spring
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
FR8305197A
Other languages
French (fr)
Other versions
FR2543649B1 (en
Inventor
Claude Rousselet
Claude Millon
Michel Legoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saunier Duval Eau Chaude Chauffage SDECC SA
Original Assignee
Saunier Duval Eau Chaude Chauffage SDECC SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA
Priority to FR8305197A priority Critical patent/FR2543649B1/en
Publication of FR2543649A1 publication Critical patent/FR2543649A1/en
Application granted granted Critical
Publication of FR2543649B1 publication Critical patent/FR2543649B1/en
Expired 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
    • F16K17/06—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 with special arrangements for adjusting the opening pressure
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

The invention relates to a discharge valve with differential pressure. The moving stopping member 1 of the discharge valve is formed from a single component of substantially tubular shape whose base is closed by a cap 11 acting as a shut off flap and whose open tubular wall at the opposite end internally and externally carries shoulders serving as a support for the spring or as a guide for the component in the valve chamber.

Description

L'invention porte sur une soupape de décharge à pression di fférenti elle. A differential pressure relief valve is provided.

On sait que dans une installation de chauffage central utilisant des radiateurs munis de robinets manuels et/ou notamment des robinets thermostatiques, quand il y a augmentation de temperature par apport de chaleur interne ou externe, cela incite l'utilisateur à fermer des robinets manuels, ou cela provoque automatiquement la fermeture des robinets thermostatiques. De ce fait le débit d'eau diminue ce qui augmente la pression différentielle disponible aux radiateurs avec pour consequence un mauvais fonttionnement et des sifflements au niveau des robinets, et une fatigue anormale de la pompe de circulation pouvant entrainer sa détérioration. It is known that in a central heating installation using radiators fitted with manual valves and / or in particular thermostatic valves, when there is an increase in temperature by supplying internal or external heat, this encourages the user to close manual valves, or it automatically closes the thermostatic valves. As a result, the water flow decreases, which increases the differential pressure available to the radiators, resulting in poor operation and hissing at the taps, and abnormal fatigue of the circulation pump which can cause its deterioration.

Les soupapes de décharge à pression différentielle connues et utilisées évitent ces inconvénients en maintenant pratiquement constante la pression differentielle aux bornes des boucles qu'elles protègent par le fait qu'elles permettent un debit automatiquement ajusté dans un by-pass de la boucle ou les robinets sont fermes. A cet effet une tête de soupape de décharge coopère avec un siège de s-oupape-qui sépare une chambre de pression amont d'une chambre de pression aval.The known and used differential pressure relief valves avoid these drawbacks by keeping the differential pressure at the terminals of the loops practically constant, which they protect by the fact that they allow a flow rate that is automatically adjusted in a bypass of the loop or the taps. are closed. For this purpose, a relief valve head cooperates with a valve seat which separates an upstream pressure chamber from a downstream pressure chamber.

Le clapet de la soupape est chargé par un ressort de compression en appui sur une coupelle de tarage a la partie supérieure du corps de la soupape. De plus pour assurer le guidage du clapet de la soupape, celui-ci est rendu solidaire d'une membrane munie d'un orifice permettant l'équilibrage des pressions de chaque côte de cette membrane. Le clapet de soupape porte un disque d'étanchéité en matière appropriée.The valve plug is loaded by a compression spring bearing on a calibration cup at the upper part of the valve body. In addition to ensure the guiding of the valve flap, the latter is made integral with a membrane provided with an orifice allowing the pressures to be balanced on each side of this membrane. The valve plug carries a sealing disc of suitable material.

Cet ensemble mobile que constitue la tète de soupape est donc formé par un assemblage de plusieurs pièces coûteuses à réaliser, et delicates à monter.This movable assembly which constitutes the valve head is therefore formed by an assembly of several parts which are expensive to produce and difficult to assemble.

Pour éviter cet inconvénient, la demanderesse a réalisé une pièce unique en matière plastique moulée de forme et de conception telle qu'elle puisse assurer notamment les fonctions, -de l'organe obturateur avec son étanchéité, d'organe de guidage, -de support au ressort de compression et de pièce permettant de compenser les variations de pression différentielle. To avoid this drawback, the Applicant has produced a single piece of molded plastic material of a shape and design such that it can perform, in particular, the functions of the shutter member with its seal, of the guide member, of the support compression spring and workpiece to compensate for differential pressure variations.

selon l'invention, l'organe obturateur mobile de la stou- pape de décharge est formé d'une seule pièce de forme sensiblement tubulaire dont la base est fermée par une calotte jouant le rôle de clapet obturateur et, dont la paroi tubulaire, ouverte à l'extrémité opposée, porte interieurement et extérieurement des épaulements servant de support au ressort ou de guidage de la pièce dans la chambre de soupape. according to the invention, the movable shutter member of the discharge valve is formed in one piece of substantially tubular shape, the base of which is closed by a cap acting as a shutter valve and, whose tubular wall, open. at the opposite end, internally and externally carries shoulders serving to support the spring or guide the part in the valve chamber.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui suit, d'une forme de realisation prise à titre d'exemple non limitatif, en reférence aux dessins qui représentent - figure l:une vue en coupe partielle de la soupape de
décharge, - figure 2:une vue en plan de l'obturateur de soupape.Other characteristics and advantages of the invention will emerge from the description which follows, of an embodiment taken by way of nonlimiting example, with reference to the drawings which represent - FIG. 1: a view in partial section of the valve of
discharge, - Figure 2: a plan view of the valve plug.

La soupape représentée la figure 1 comporte un corps de soupape 2 dans lequel le fluide est admis dans une chambre de pression amont 3 et quitte une chambre de pression aval 4 par des tubulures appropriées. Uoe troisième tubulure 5 de plus grand diamètre sert au montage du chapeau 6 de la soupape dont la base cylindrique ménage une chambre annulaire 23. Dans l'alignement de la tubulure d'entrée de la chambre amont 3, une collerette annulaire 7 définit un siège pour la pièce obturatrice séparant la chambre amont de la chambre aval, pièce qui est définie dans son ensemble par la référence 1. Le chapeau 6 porte lui-même un volant 8 de manoeuvre d'une coupelle mobile 9 servant d'appui au ressort de compression 20 de la pièce obturatrice.The valve shown in FIG. 1 comprises a valve body 2 into which the fluid is admitted into an upstream pressure chamber 3 and leaves a downstream pressure chamber 4 through suitable pipes. Uoe third tubing 5 of larger diameter is used for mounting the cap 6 of the valve whose cylindrical base provides an annular chamber 23. In alignment with the inlet tubing of the upstream chamber 3, an annular flange 7 defines a seat for the obturating part separating the upstream chamber from the downstream chamber, a part which is defined as a whole by the reference 1. The cap 6 itself carries a flywheel 8 for operating a movable cup 9 serving to support the spring of compression 20 of the obturating part.

Un index 21 coulissant dans les lumières 22 prévues sur le chapeau permet la lecture directe de la pression affichée.An index 21 sliding in the slots 22 provided on the cap allows direct reading of the pressure displayed.

La pièce obturatrice 1 de forme sensiblement tubulaire est fermée à sa partie inférieure par une calotte 11 qui joue le rôle de clapet obturateur et coopère avec la collerette annulaire 7. The obturating part 1 of substantially tubular shape is closed at its lower part by a cap 11 which acts as a shutter valve and cooperates with the annular collar 7.

Cette pièce est normalement appliquée sur son siêge1par le ressort 20 en appui sur un épaulement 12 prevu sur la paroi interne de la pièce obturatrice 1.This part is normally applied to its seat 1 by the spring 20 bearing on a shoulder 12 provided on the internal wall of the obturating part 1.

On voit notamment à la figure 2 que la paroi exterieure de la pièce obturatrice 1 porte des godrons. 13 qui servent au guidage de ladite pièce à l'intérieur de la chambre annulaire 23, tout en laissant passage au fluide entre la chambre 4 et la chambre 23, le long de la paroi de guidage.It can be seen in particular in Figure 2 that the outer wall of the obturator part 1 carries gadroons. 13 which are used for guiding said part inside the annular chamber 23, while allowing passage of the fluid between the chamber 4 and the chamber 23, along the guide wall.

Cette unique pièce obturatrice 1 réalisée, de préférence en matière plastique moulee joue donc le rible de clapet obturateur d'organe de guidage et d'organe de support de ressort. Elle est par conséquent d'un prix de revient peu 'élevé, et d'un montage et d'un entretien facile.This single obturator part 1 made, preferably of molded plastic material therefore plays the target of a shutter valve of the guide member and of the spring support member. It is consequently of a low cost price, and of an assembly and an easy maintenance.

L'invention ne se limite pas à l'exemple de réalisation représente mais en englobe aussi les variantes constructives. The invention is not limited to the embodiment shown but also encompasses the constructive variants.

Claims (3)

Revendications 1 / Soupape de décharge à pression différentielle notam ment pour installation de chauffage central compor tant un organe obturateur rappele par un ressort se- parant une chambre de pression amont d'une chambre de pression aval, et un volant de manoeuvre pour le réglage de la pression associé à un système d'affi chage, caractérisée par le fait qu'on prévoit dans la soupape, une pièce unique (1) de configuration parti culiere pour assurer, --la fonction d'organe obturateur coopérant avec un siège de clapet (7), -la fonction d'organe de guidage dans le chapeau du corps de sou pape, -la fonction de support au ressort de compression (20), -et la fonction d'organe compensateur des varia tions de pression differentielSe.Claims 1 / Differential pressure relief valve in particular for central heating installation comprising an obturator member returned by a spring separating an upstream pressure chamber from a downstream pressure chamber, and an operating handwheel for adjusting the the pressure associated with a display system, characterized in that there is provided in the valve, a single part (1) of particular configuration to ensure, --the function of the shutter member cooperating with a valve seat (7), -the function of guide member in the cap of the body of the pope, -the support function of the compression spring (20), -and the function of compensating member for variations in differential pressure. 20/ Soupape de décharge selon la revendication 1 carac20 / relief valve according to claim 1 carac terisee par le fait que la pièce obturatrice (1) est terrified by the fact that the shutter part (1) is de forme sensiblement tubulaire et est ferme à sa par substantially tubular in shape and is firm at its tie inférieure par une-calotte (11) jouant le- rôle de lower tie by a cap (11) playing the role of clapet. valve. 30/ Soupape de décharge selon les revendications 1 et 230 / Relief valve according to claims 1 and 2 caractérisée par le fait que la paroi i-nterne de la-  characterized by the fact that the internal wall of the pièce obturatrice (1) est munie d'un épaulement (12) obturating part (1) is provided with a shoulder (12) servant d'appui au ressort (20). serving as support for the spring (20). 40/ Soupape de décharge selon les revendi-cations 1 et 240 / Relief valve according to claims 1 and 2 caractérisée par le fait que la paroi extérieure de characterized by the fact that the outer wall of la piece obtùratrice (1) est munie de godrons (13) the obturator part (1) is provided with gadroons (13) pour le guidage de la pièce tout en laissant libre for guiding the part while leaving it free passage au fluide le long de la paroi de guidage.  passage of fluid along the guide wall.
FR8305197A 1983-03-30 1983-03-30 DIFFERENTIAL PRESSURE RELIEF VALVE Expired FR2543649B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8305197A FR2543649B1 (en) 1983-03-30 1983-03-30 DIFFERENTIAL PRESSURE RELIEF VALVE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8305197A FR2543649B1 (en) 1983-03-30 1983-03-30 DIFFERENTIAL PRESSURE RELIEF VALVE

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FR2543649A1 true FR2543649A1 (en) 1984-10-05
FR2543649B1 FR2543649B1 (en) 1986-05-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102582986A (en) * 2012-03-14 2012-07-18 三一重工股份有限公司 Powder can and safety valve thereof
CN109958777A (en) * 2017-12-26 2019-07-02 丹佛斯有限公司 Differential-pressure bypass valve and cold water or the heat pump unit circulatory system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601563A (en) * 1948-10-30 1952-06-24 Selwyn Landers Company Relief valve
DE889555C (en) * 1951-12-11 1953-09-10 Mathias Thaller Valve for extracting compressed air from the compressor of vehicle diesel engines
DE2451675A1 (en) * 1974-10-31 1976-05-13 Steinicke Eckehard Overflow valve for heating systems with thermostatic radiator valves - is adjustable to delivery of circulation pump to prevent flow noises
US4284102A (en) * 1978-06-28 1981-08-18 H. Adler Associates, Inc. Combination stop and pressure reducing valve
FR2516196A1 (en) * 1981-11-12 1983-05-13 Dsw Dienst Sociale Werkvoorzie ADJUSTABLE ISOLATION DEVICE, PARTICULARLY FOR THE SHORT CIRCUIT PIPE OF A PUMP

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601563A (en) * 1948-10-30 1952-06-24 Selwyn Landers Company Relief valve
DE889555C (en) * 1951-12-11 1953-09-10 Mathias Thaller Valve for extracting compressed air from the compressor of vehicle diesel engines
DE2451675A1 (en) * 1974-10-31 1976-05-13 Steinicke Eckehard Overflow valve for heating systems with thermostatic radiator valves - is adjustable to delivery of circulation pump to prevent flow noises
US4284102A (en) * 1978-06-28 1981-08-18 H. Adler Associates, Inc. Combination stop and pressure reducing valve
FR2516196A1 (en) * 1981-11-12 1983-05-13 Dsw Dienst Sociale Werkvoorzie ADJUSTABLE ISOLATION DEVICE, PARTICULARLY FOR THE SHORT CIRCUIT PIPE OF A PUMP

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102582986A (en) * 2012-03-14 2012-07-18 三一重工股份有限公司 Powder can and safety valve thereof
CN102582986B (en) * 2012-03-14 2014-10-15 三一重工股份有限公司 Powder can and safety valve thereof
CN109958777A (en) * 2017-12-26 2019-07-02 丹佛斯有限公司 Differential-pressure bypass valve and cold water or the heat pump unit circulatory system

Also Published As

Publication number Publication date
FR2543649B1 (en) 1986-05-16

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