FR2580774A1 - Safety valve for an enclosure containing a pressurised fluid - Google Patents
Safety valve for an enclosure containing a pressurised fluid Download PDFInfo
- Publication number
- FR2580774A1 FR2580774A1 FR8505899A FR8505899A FR2580774A1 FR 2580774 A1 FR2580774 A1 FR 2580774A1 FR 8505899 A FR8505899 A FR 8505899A FR 8505899 A FR8505899 A FR 8505899A FR 2580774 A1 FR2580774 A1 FR 2580774A1
- Authority
- FR
- France
- Prior art keywords
- safety valve
- valve
- spring
- valve according
- nut
- 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- Withdrawn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
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- 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
- F16K17/0413—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 in the form of closure plates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
Description
La présente invention concerne la conception du mécanisme intérieur des soupapes de sureté utilisées sur des appareils soumis à une pression interne, afin d'en améliorer les performances de débit. Les appareils de ce type, utilisés à l'heure actuelle, sont conçus avec un guidage du clapet sur l'intérieur d'une partie tubulaire, par des ailettes solidaires du clapet. Ces ailettes présentent deux inconvénients majeurs qui influent sur le débit. The present invention relates to the design of the internal mechanism of safety valves used on apparatus subjected to internal pressure, in order to improve the flow performance thereof. The devices of this type, currently used, are designed with a guide of the valve on the inside of a tubular part, by fins integral with the valve. These fins have two major drawbacks which affect the flow rate.
a) diminution de la section de passage pour l'écoulement du fluide
b) création de turbulences
Par ailleurs, sur les soupapes de sureté de ce type existantes, aucun moyen n'empêche le ressort d'arriver à spires jointives, ce qui a pour conséquence de le faire travailler dans des conditions anormales et lui fait perdre ses caractéristiques mécaniques. Dans ces conditions, aprés chaque entrée en action de la soupape de sureté, celle-ci doit être changée.a) reduction in the cross-section for the flow of the fluid
b) creation of turbulence
Furthermore, on existing safety valves of this type, no means prevents the spring from arriving at contiguous turns, which has the consequence of making it work in abnormal conditions and makes it lose its mechanical characteristics. Under these conditions, after each entry into action of the safety valve, it must be changed.
La soupape de sureté, selon l'invention, permet de remédier à tous ces inconvénients car le guidage du clapet se fait au centre, à l'in térieur du ressort (plus d'ailettes) et que la course du clapet est contrôlée mécaniquement, interdisant ainsi que le ressort n' arrive à spires jointives. The safety valve according to the invention overcomes all these drawbacks because the valve is guided in the center, inside the spring (more fins) and the valve stroke is mechanically controlled, thus preventing the spring from reaching contiguous turns.
A noter également que la partie tubulaire servant au guidage du clapet permet, en même temps un guidage du ressort, évitant que ses spires centrales ne se désaxent et le fasse travailler dans de mauvaises conditions. Note also that the tubular part used for guiding the valve allows, at the same time, a guiding of the spring, preventing its central turns from offsetting and making it work in poor conditions.
La soupape de sureté, selon l'invention, peut être réalisée dans n importe quel matériau rigide (acier, alliage de cuivre ou d'aluminium, matière composite) à partir du moment où celui-ci est compatible avec le fluide avec lequel elle sera en contact. The safety valve according to the invention can be made of any rigid material (steel, copper or aluminum alloy, composite material) as soon as it is compatible with the fluid with which it will be in touch.
La soupape de sureté, selon l'invention, se trouve simplifiée par rapport aux modèles existants, toutes les pièces matricées ayant été éliminées. Toutes les pièces peuvent être obtenues par tournage, seule une opération de fraisage est nécessaire au niveau de l'écrou, d'où une diminution sensible du prix de revient. The safety valve according to the invention is simplified compared to existing models, all the stamped parts having been eliminated. All the parts can be obtained by turning, only a milling operation is necessary at the level of the nut, hence a significant reduction in the cost price.
La figure 1 représente une soupape de sureté selon l'invention. FIG. 1 represents a safety valve according to the invention.
La demi-vue de droite représente la soupape clapet ouvert et celle de gauche, avec le clapet en position fermé.The half-view on the right represents the valve open and that on the left, with the valve in the closed position.
La soupape de sureté représentée sur la figure 1, est composée d'un corps (1) faisant office de siège de clapet (4) dans sa partie centrale. Un filetage extérieur (10) permet son montage, soit sur un bossage de réservoir ou sur un accessoire de sécurité intermédiaire. The safety valve shown in Figure 1, is composed of a body (1) acting as a valve seat (4) in its central part. An external thread (10) allows its mounting, either on a reservoir boss or on an intermediate safety accessory.
Ce mode de fixation, par filetage conique peut être, éventuellement, remplacé par un filetage cylindrique ou par une bride, ceci n'influant pas sur le principe de fonctionnement.This method of fixing, by conical thread can be, optionally, replaced by a cylindrical thread or by a flange, this does not affect the operating principle.
Sur le corps (1), dans la partie supérieure, est prévu un taraudage (11) destiné à recevoir un tube (2), lui-même taraudé dans sa partie supérieure, permettant le montage de l'écrou (5) de règlage du ressort (6). Le corps (1) et le tube (2) pourraient, dans une autre forme de réalisation, ne faire qu'une seule pièce, réalisée par moulage ou matriçage. On the body (1), in the upper part, is provided a thread (11) intended to receive a tube (2), itself threaded in its upper part, allowing the mounting of the nut (5) for adjusting the spring (6). The body (1) and the tube (2) could, in another embodiment, form a single piece, produced by molding or stamping.
Au centre de l'écrou de règlage est fixé un tube guide (7), soit par emmanchement à force, comme le montre la figure 1, soit par tout autre système d'assemblage connu (vis, rivet ou soudure). At the center of the adjusting nut is fixed a guide tube (7), either by force fitting, as shown in Figure 1, or by any other known assembly system (screws, rivet or welding).
Un clapet (9) sur lequel est assujetti un joint (3), permettant l'étanchéité, est muni, dans sa partie supérieure, d'une tige (8), coulissant dans le tube guide (7), lorsqu'une surpression, à l'intérieur de l'enceinte, provoque l'ouverture de la soupape de sureté. La course du clapet (9) est donc limitée jusqu'à ce que ce dernier vienne en contact avec la base du tube guide (7) . La longueur existant alors entre le dessus du clapet (9) et le dessous de l'écrou de règlage (5) où prennent appui les deux extrémités du ressort (6) est supérieure à la longueur à spires jointives du ressort (6). Pour éviter un effort de torsion dans le ressort lors du règlage, une rondelle (I2) peut être prévue, soit sur le dessus du clapet (9) soit sur le dessous de l'écrou de règlage (5). A valve (9) to which a seal (3) is attached, allowing the seal, is provided, in its upper part, with a rod (8), sliding in the guide tube (7), when an overpressure, inside the enclosure, causes the safety valve to open. The stroke of the valve (9) is therefore limited until the latter comes into contact with the base of the guide tube (7). The length then existing between the top of the valve (9) and the bottom of the adjusting nut (5) where the two ends of the spring (6) bear is greater than the length with contiguous turns of the spring (6). To avoid a torsional force in the spring during adjustment, a washer (I2) can be provided, either on the top of the valve (9) or on the underside of the adjustment nut (5).
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8505899A FR2580774A1 (en) | 1985-04-18 | 1985-04-18 | Safety valve for an enclosure containing a pressurised fluid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8505899A FR2580774A1 (en) | 1985-04-18 | 1985-04-18 | Safety valve for an enclosure containing a pressurised fluid |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2580774A1 true FR2580774A1 (en) | 1986-10-24 |
Family
ID=9318389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8505899A Withdrawn FR2580774A1 (en) | 1985-04-18 | 1985-04-18 | Safety valve for an enclosure containing a pressurised fluid |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2580774A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2612275A1 (en) * | 1987-03-10 | 1988-09-16 | Simonny Roger | Safety member for preventing overpressure in pressurised fluid enclosures |
FR2788097A1 (en) * | 1998-12-30 | 2000-07-07 | Electricite De France | CLUTCH FOR A COMBUSTION GAS ENCLOSURE |
WO2004027301A1 (en) * | 2002-09-18 | 2004-04-01 | LACERTA S.r.L. CON UNICO SOCIO | Safety valve |
CN102072345A (en) * | 2010-12-21 | 2011-05-25 | 湖南五新机械有限公司 | Concrete pouring gate safety valve |
CN110425118A (en) * | 2019-08-14 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating plant with it |
CN110425115A (en) * | 2019-08-14 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
CN110425114A (en) * | 2019-08-14 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1083070A (en) * | 1952-09-06 | 1955-01-05 | Conical check valve, high pressure | |
FR1115781A (en) * | 1954-12-06 | 1956-04-30 | Applic Mach Motrices | Back pressure valve |
FR2110509A5 (en) * | 1970-10-20 | 1972-06-02 | Air Liquide | |
FR2131709A5 (en) * | 1971-03-29 | 1972-11-10 | Dresser Ind |
-
1985
- 1985-04-18 FR FR8505899A patent/FR2580774A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1083070A (en) * | 1952-09-06 | 1955-01-05 | Conical check valve, high pressure | |
FR1115781A (en) * | 1954-12-06 | 1956-04-30 | Applic Mach Motrices | Back pressure valve |
FR2110509A5 (en) * | 1970-10-20 | 1972-06-02 | Air Liquide | |
FR2131709A5 (en) * | 1971-03-29 | 1972-11-10 | Dresser Ind |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2612275A1 (en) * | 1987-03-10 | 1988-09-16 | Simonny Roger | Safety member for preventing overpressure in pressurised fluid enclosures |
FR2788097A1 (en) * | 1998-12-30 | 2000-07-07 | Electricite De France | CLUTCH FOR A COMBUSTION GAS ENCLOSURE |
WO2000040880A1 (en) * | 1998-12-30 | 2000-07-13 | Electricite De France (Service National) | Closure valve for waste gas chamber |
WO2004027301A1 (en) * | 2002-09-18 | 2004-04-01 | LACERTA S.r.L. CON UNICO SOCIO | Safety valve |
CN102072345A (en) * | 2010-12-21 | 2011-05-25 | 湖南五新机械有限公司 | Concrete pouring gate safety valve |
CN110425118A (en) * | 2019-08-14 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating plant with it |
CN110425115A (en) * | 2019-08-14 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
CN110425114A (en) * | 2019-08-14 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
CN110425118B (en) * | 2019-08-14 | 2021-09-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating device with same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Withdrawal of published application |