EP1143192A1 - Uberdrucksicherheitsvorrichtung für Flüssiggastanks - Google Patents

Uberdrucksicherheitsvorrichtung für Flüssiggastanks Download PDF

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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
Application number
EP00400953A
Other languages
English (en)
French (fr)
Other versions
EP1143192B1 (de
Inventor
Alain Parnois
Laurent Foucher
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.)
KNDS France Mechanics SA
Original Assignee
Giat Industries 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 Giat Industries SA filed Critical Giat Industries SA
Priority to DE60042480T priority Critical patent/DE60042480D1/de
Priority to AT00400953T priority patent/ATE435398T1/de
Priority to ES00400953T priority patent/ES2329110T3/es
Priority to EP00400953A priority patent/EP1143192B1/de
Publication of EP1143192A1 publication Critical patent/EP1143192A1/de
Application granted granted Critical
Publication of EP1143192B1 publication Critical patent/EP1143192B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
EP00400953A 2000-04-07 2000-04-07 Uberdrucksicherheitsvorrichtung für Flüssiggastanks Expired - Lifetime EP1143192B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60042480T DE60042480D1 (de) 2000-04-07 2000-04-07 Uberdrucksicherheitsvorrichtung für Flüssiggastanks
AT00400953T ATE435398T1 (de) 2000-04-07 2000-04-07 Uberdrucksicherheitsvorrichtung für flüssiggastanks
ES00400953T ES2329110T3 (es) 2000-04-07 2000-04-07 Dispositivo de seguridad de sobrepresion de un deposito que contiene gas liquado de petroleo.
EP00400953A EP1143192B1 (de) 2000-04-07 2000-04-07 Uberdrucksicherheitsvorrichtung für Flüssiggastanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00400953A EP1143192B1 (de) 2000-04-07 2000-04-07 Uberdrucksicherheitsvorrichtung für Flüssiggastanks

Publications (2)

Publication Number Publication Date
EP1143192A1 true EP1143192A1 (de) 2001-10-10
EP1143192B1 EP1143192B1 (de) 2009-07-01

Family

ID=8173636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00400953A Expired - Lifetime EP1143192B1 (de) 2000-04-07 2000-04-07 Uberdrucksicherheitsvorrichtung für Flüssiggastanks

Country Status (4)

Country Link
EP (1) EP1143192B1 (de)
AT (1) ATE435398T1 (de)
DE (1) DE60042480D1 (de)
ES (1) ES2329110T3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006021234A1 (en) * 2004-08-25 2006-03-02 Magnex Scientific Limited Cryogenic vessel boil-off monitoring systems
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163968A2 (de) * 1984-05-10 1985-12-11 LGA Gastechnik GmbH Sicherheitseinrichtung für Flüssiggastanks
EP0235693A2 (de) * 1986-03-05 1987-09-09 IRS Industrie Rationalisierungs Systeme GmbH Verfahren und Vorrichtung zum Explosionsschutz von Anlagen, Rohrleitungen u. dgl. durch Drucküberwachung
US5848604A (en) * 1997-10-29 1998-12-15 Technical Products Group, Inc. Thermally responsive pressure relief system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163968A2 (de) * 1984-05-10 1985-12-11 LGA Gastechnik GmbH Sicherheitseinrichtung für Flüssiggastanks
EP0235693A2 (de) * 1986-03-05 1987-09-09 IRS Industrie Rationalisierungs Systeme GmbH Verfahren und Vorrichtung zum Explosionsschutz von Anlagen, Rohrleitungen u. dgl. durch Drucküberwachung
US5848604A (en) * 1997-10-29 1998-12-15 Technical Products Group, Inc. Thermally responsive pressure relief system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006021234A1 (en) * 2004-08-25 2006-03-02 Magnex Scientific Limited Cryogenic vessel boil-off monitoring systems
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
EP1143192B1 (de) 2009-07-01
DE60042480D1 (de) 2009-08-13
ATE435398T1 (de) 2009-07-15

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