EP1143192A1 - Dispositif de sécurité de surpression d'un réservoir contenant du gaz de pétrole liquefié - Google Patents
Dispositif de sécurité de surpression d'un réservoir contenant du gaz de pétrole liquefié Download PDFInfo
- Publication number
- EP1143192A1 EP1143192A1 EP00400953A EP00400953A EP1143192A1 EP 1143192 A1 EP1143192 A1 EP 1143192A1 EP 00400953 A EP00400953 A EP 00400953A EP 00400953 A EP00400953 A EP 00400953A EP 1143192 A1 EP1143192 A1 EP 1143192A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- safety device
- tank
- valve
- pressure
- opening
- 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
Images
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
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
-
- 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
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- 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
- F17C2205/0323—Valves
- F17C2205/0332—Safety valves or pressure relief valves
-
- 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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
Definitions
- the technical sector of the present invention is that of safety devices for tanks intended to contain pressurized fluids, such as tanks under internal pressure, and more especially petroleum gas tanks liquefied, called LPG for vehicles.
- tanks intended to contain pressurized fluids consist of a envelope made of mostly metallic material.
- the current forms are generally cylindrical, toric or parallelepipedic. These shapes are good adapted to distribute the stresses evenly over the periphery of the tank.
- These tanks are fitted with a valve called safety device intended to cause their opening in the event of overpressure in the tank.
- These devices are consist of a simple safety valve calibrated to a opening pressure determined. In case of overpressure due for example to a failure of the filling or elevation lock exceptional temperature, the opening of this valve limits the risk of explosion. But if the rise in ambient temperature or pressure in the tank is extremely fast, in case of fire the risk of an explosion is not discarded since the opening of the valve does not allow to evacuate the flow resulting from the increase asymptotic increase in pressure.
- the invention offers a safety device to hold account for this potential risk.
- the present invention therefore relates to a safety device for a tank intended for contain pressurized fluid intended to cause the opening of the tank under the effect of the increase of pressure or temperature of the type comprising a safety valve for setting communication between the tank and the outside environment, characterized in that it includes a means for measure an abnormal increase in temperature pressure or fluid pressure in the tank to control the early opening of the safety valve.
- the security device includes a means of measurement of the pressure build-up speed at inside the tank.
- the measuring device is connected to the valve security by a commanding processing module opening the valve.
- the measuring means consists of a sensor differential taking into account a variation of pressure determined for a defined period of time.
- the module includes means to transform the information delivered by the sensor in a signal electric valve opening control.
- the security device includes a means of measurement of the surrounding tank temperature.
- the measuring device consists of a certain number of temperature measurement sensors arranged in the vicinity of the reservoir and reacting from a threshold determined.
- the sensors are connected to the safety valve through a processing module controlling the opening of the valve.
- the safety valve may consist of a spring system and can be fitted with a probe inserted in an articulated member arranged on the line spring compression.
- An advantage of the tank according to the invention lies in that the reliability of the tank is improved by greatly reducing the danger of explosion.
- Another advantage of the tank according to the invention is that all of the causes causing an overpressure is taken into account.
- FIG. 1 there is shown a tank 1 intended to contain a fluid 2 under pressure by example a liquefied petroleum gas.
- a fluid 2 under pressure by example a liquefied petroleum gas.
- This tank is equipped in a known manner with a safety valve 3 allowing fluid 2 under pressure to escape when the internal pressure of the tank increases and reaches a certain value.
- This component is tared in factory and is well known. It goes without saying that this valve 3 works, i.e. puts the tank in communication with the outside, only when the measured pressure reaches the set value. However, if the pressure builds up too quickly, asymptotically, this reference value is measured while the tank tolerance threshold at the pressure is exceeded, hence a certain risk explosion threatening personnel near the vehicle equipped with such a system.
- this valve 3 is added a means 4 for measuring the internal pressure of the tank 1.
- This means 4 delivers a signal which is treated in a module 5 which takes into account pressure increase in a given amount of time. When this increase is greater than a value previously fixed module 5 controls the opening of valve 3.
- Means 4 is a commercial component such as a differential pressure sensor which takes into account a pressure variation determined in the tank for a period of time defined.
- Module 5 includes electronic means conventional to transform the received signal into electrical energy to activate opening the valve 3.
- FIG. 2 shows a schematic view of a second variant embodiment of the invention that the nearby temperature is measured tank 1 and no longer its pressure internal.
- This realization finds its interest in case vehicle fire causing bad operation of safety valve 3 in case rapid increase in this temperature.
- a value of reference which when exceeded allows order the valve. This value corresponds to a threshold function of the rate of increase of the temperature.
- FIG. 3 a variant of realization of a safety valve improved by a mechanical triggering device.
- a mechanical probe 9 which lowers the compression load of the spring 10 applied to its support seat 12 from a threshold predetermined temperature.
- This probe 9 is for that interposed on the compression line of the spring 10 in an articulated system 11, of the type parallelogram, for example between spring 10 and the valve seat 8, so as to reduce the effort calibration of this spring in connection with the increase temperature and thereby control the opening valve premature.
- Probe 9 can be inserted between the spring 10 and its seat 12.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
- la figure 1 est une représentation schématique d'un système selon l'invention repérant la surpression régnant dans le réservoir,
- la figure 2 est également une représentation schématique d'un mode de réalisation prenant en compte la température extérieure du réservoir, et
- la figure 3 illustre la réalisation d'une sonde mécanique.
Claims (9)
- Dispositif de sécurité pour un réservoir (1) destiné à contenir du fluide (2) sous pression destiné à provoquer l'ouverture du réservoir sous l'effet de l'augmentation de pression du type comportant une soupape de sécurité (3) permettant de mettre en communication le réservoir et le milieu extérieur, caractérisé en ce qu'il comporte un moyen (4, 5, 6) permettant de mesurer un accroissement anormal de la température extérieure ou de la pression du fluide dans le réservoir commandant l'ouverture anticipée de la valve de sécurité (3).
- Dispositif de sécurité selon la revendication 1, caractérisé en ce qu'il comporte un moyen de mesure (4) de la vitesse de montée en pression du réservoir (1) .
- Dispositif de sécurité selon la revendication 2, caractérisé en ce que le moyen de mesure (4) est relié à la valve de sécurité (3) par un module de traitement (5) commandant l'ouverture de la valve (3).
- Dispositif de sécurité selon la revendication 1, caractérisé en ce que le moyen de mesure (4) est un capteur différentiel de pression prenant en compte une variation de pression déterminée pour un laps de temps défini.
- Dispositif de sécurité selon la revendication 4, caractérisé en ce que le module (5) comporte des moyens permettant de transformer l'information délivrée par le capteur en un signal électrique de commande de l'ouverture de la valve (3).
- Dispositif de sécurité selon la revendication 1, caractérisé en ce qu'il comporte un moyen de mesure (6) de la température environnante au réservoir (1).
- Dispositif de sécurité selon la revendication 6, caractérisé en ce que le moyen de mesure (6) est constitué d'un certain nombre de capteurs de mesure de la température disposés au voisinage du réservoir (1) et réagissant à un seuil prédéterminé.
- Dispositif de sécurité selon la revendication 7, caractérisé en ce que les capteurs (7) sont reliés à la valve de sécurité (3) par l'intermédiaire d'un module de traitement (6) commandant l'ouverture de la valve.
- Dispositif de sécurité selon la revendication 1, caractérisé en ce que la valve de sécurité (7) est constituée d'un système à ressort (10) et est munie d'une sonde (9) intercalée dans un organe articulé (11) disposé sur la ligne de compression du ressort (10).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES00400953T ES2329110T3 (es) | 2000-04-07 | 2000-04-07 | Dispositivo de seguridad de sobrepresion de un deposito que contiene gas liquado de petroleo. |
AT00400953T ATE435398T1 (de) | 2000-04-07 | 2000-04-07 | Uberdrucksicherheitsvorrichtung für flüssiggastanks |
EP00400953A EP1143192B1 (fr) | 2000-04-07 | 2000-04-07 | Dispositif de sécurité de surpression d'un réservoir contenant du gaz de pétrole liquefié |
DE60042480T DE60042480D1 (de) | 2000-04-07 | 2000-04-07 | Uberdrucksicherheitsvorrichtung für Flüssiggastanks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00400953A EP1143192B1 (fr) | 2000-04-07 | 2000-04-07 | Dispositif de sécurité de surpression d'un réservoir contenant du gaz de pétrole liquefié |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1143192A1 true EP1143192A1 (fr) | 2001-10-10 |
EP1143192B1 EP1143192B1 (fr) | 2009-07-01 |
Family
ID=8173636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00400953A Expired - Lifetime EP1143192B1 (fr) | 2000-04-07 | 2000-04-07 | Dispositif de sécurité de surpression d'un réservoir contenant du gaz de pétrole liquefié |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1143192B1 (fr) |
AT (1) | ATE435398T1 (fr) |
DE (1) | DE60042480D1 (fr) |
ES (1) | ES2329110T3 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006021234A1 (fr) * | 2004-08-25 | 2006-03-02 | Magnex Scientific Limited | Systèmes de surveillance de l’évaporation d’une cuve cryogénique |
DE102008031343A1 (de) * | 2008-07-02 | 2010-01-07 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Überwachen eines Boil-Off-Ventils eines Kryotanks eines Kraftfahrzeugs |
CN119178101A (zh) * | 2024-11-26 | 2024-12-24 | 山东联合能源管道输送有限公司 | 一种储罐风险预警智能监测系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0163968A2 (fr) * | 1984-05-10 | 1985-12-11 | LGA Gastechnik GmbH | Dispositif de sécurité pour réservoirs de gaz liquéfié |
EP0235693A2 (fr) * | 1986-03-05 | 1987-09-09 | IRS Industrie Rationalisierungs Systeme GmbH | Procédé et appareil pour la protection contre des explosions en surveillant la pression dans des installations telles que des pipe-lines |
US5848604A (en) * | 1997-10-29 | 1998-12-15 | Technical Products Group, Inc. | Thermally responsive pressure relief system |
-
2000
- 2000-04-07 EP EP00400953A patent/EP1143192B1/fr not_active Expired - Lifetime
- 2000-04-07 DE DE60042480T patent/DE60042480D1/de not_active Expired - Lifetime
- 2000-04-07 AT AT00400953T patent/ATE435398T1/de not_active IP Right Cessation
- 2000-04-07 ES ES00400953T patent/ES2329110T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0163968A2 (fr) * | 1984-05-10 | 1985-12-11 | LGA Gastechnik GmbH | Dispositif de sécurité pour réservoirs de gaz liquéfié |
EP0235693A2 (fr) * | 1986-03-05 | 1987-09-09 | IRS Industrie Rationalisierungs Systeme GmbH | Procédé et appareil pour la protection contre des explosions en surveillant la pression dans des installations telles que des pipe-lines |
US5848604A (en) * | 1997-10-29 | 1998-12-15 | Technical Products Group, Inc. | Thermally responsive pressure relief system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006021234A1 (fr) * | 2004-08-25 | 2006-03-02 | Magnex Scientific Limited | Systèmes de surveillance de l’évaporation d’une cuve cryogénique |
DE102008031343A1 (de) * | 2008-07-02 | 2010-01-07 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Überwachen eines Boil-Off-Ventils eines Kryotanks eines Kraftfahrzeugs |
CN119178101A (zh) * | 2024-11-26 | 2024-12-24 | 山东联合能源管道输送有限公司 | 一种储罐风险预警智能监测系统 |
Also Published As
Publication number | Publication date |
---|---|
ES2329110T3 (es) | 2009-11-23 |
ATE435398T1 (de) | 2009-07-15 |
EP1143192B1 (fr) | 2009-07-01 |
DE60042480D1 (de) | 2009-08-13 |
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