EP2199655B1 - Mécanisme de contrôle des fuites pour cylindres LPG - Google Patents

Mécanisme de contrôle des fuites pour cylindres LPG Download PDF

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Publication number
EP2199655B1
EP2199655B1 EP09178694A EP09178694A EP2199655B1 EP 2199655 B1 EP2199655 B1 EP 2199655B1 EP 09178694 A EP09178694 A EP 09178694A EP 09178694 A EP09178694 A EP 09178694A EP 2199655 B1 EP2199655 B1 EP 2199655B1
Authority
EP
European Patent Office
Prior art keywords
leak
leakage
pressure
control mechanism
cylinders
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.)
Not-in-force
Application number
EP09178694A
Other languages
German (de)
English (en)
Other versions
EP2199655A1 (fr
Inventor
M.Fevzi Citil
Emrah Isbilen
Can Tikiroglu
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.)
Aygaz AS
Original Assignee
Aygaz AS
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 Aygaz AS filed Critical Aygaz AS
Publication of EP2199655A1 publication Critical patent/EP2199655A1/fr
Application granted granted Critical
Publication of EP2199655B1 publication Critical patent/EP2199655B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F17C5/005—Automated filling apparatus for gas bottles, such as on a continuous belt or on a merry-go-round
    • 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
    • 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
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/038—Detecting leaked fluid
    • 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
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/059—Mass bottling, e.g. merry belts

Definitions

  • This invention is related with the mechanism which checks LPG cylinders against leakage.
  • LPG cylinders that arrive at many filling facilities are checked regarding their conformity for filling according to various standards and nonconforming cylinders are set apart before filling.
  • One of the most important among these checks is the cylinder leakage control.
  • LPG is a flammable and explosive material
  • Leakage control is performed after filling, and the cylinder's body and valve is required to be checked against leakages. For the sake of operation efficiency, this control process is performed by operators and/or machinery on the filling conveyor line, while the cylinders advance.
  • European patent document EP0387542 mentions an LPG cylinder leakage detection system.
  • the system takes the cylinder on the conveyor line and performs the leakage test.
  • the system includes a sensor which sends a signal to the system and ensures discarding the cylinder from the conveyor when the system identifies a mechanical brake or leakage that stops the newly received cylinder.
  • This system resembles to the invention with regard to taking the cylinder from the conveyor line and transferring to leakage detection section. In this system, only the valve leakages can be identified. Valve and the body of the cylinder are not checked simultaneously. Besides, the air wiped from the leakage zone in the system is taken to the combustion room and it is burnt there, and the existence of LPG in the environment is checked according to the emerging energy level.
  • European patent document EP0441632 mentions an apparatus which detects minor gas leakages in compressed containers.
  • the apparatus is plugged to the neck of the pressurized container.
  • the section between the apparatus and the neck is a room. And the air that remains in the room may exit through the hole 48. If the container leaks, then the pressure in the room increases and this pressure is detected by the sensor.
  • Japanese patent document JP2000352539 mentions a gas leakage detection system.
  • the component to be tested is placed in the hollow section of the pressure tank and the pressure of the hollow section and the pressure of the pressure section are equated. Gas leakage from a potential hole increases the pressure of the hollow section. The pressure difference is detected by the pressure sensor.
  • This system resembles to the invention as it includes a reference pressure compartment and a pressure sensor.
  • the checks are performed with the machinery that employ infrared and catalytic technology and with the leakage control pool where manual check is performed.
  • this machinery LPG leakages higher than 1.5 gr/h can be detected and the leakages on the cylinder body cannot be detected. Failure to detect body/welding leakages has necessitated a solution for this technical problem.
  • the purpose of the invention is to create a leakage control mechanism for LPG cylinders which enables detecting 0.2 gr/h valve and body leakages.
  • Another purpose of the invention is to develop a leakage control mechanism for LGP cylinders which provides automatic control on the line without requiring the operator's intervention.
  • a leakage control mechanism for LPG cylinders (7) most basically contains
  • the invention is related with the leakage control of LPG cylinders with a leakage control mechanism (1) for LPG cylinders.
  • the cylinders (7) on the conveyor line are initially taken into the leak-proof compartment (2).
  • the leak-proof compartment (2) is lowered on the cylinder (7) and the cylinder (7) is isolated from the external environment.
  • a fully impermeable environment is created with the impermeability surface (3).
  • the pressure changes of the compartment (2) are measurement by the measuring equipment (4), and the leaking cylinders (7) are automatically removed from the line according to the pressure differences that occur in the case of a leakage.
  • the pressure in the leak-proof compartment (2) increases.
  • the compensation tank (5) compensates the pressure changes in the external environment and creates an environment with a constant pressure; so the pressure changes in the leak-proof (compartment) are correctly detected by the measuring equipment (4).
  • Measuring equipment (4) detects this flow, that is the leakage which occurs on the cylinder (7). When the identified leakage would be higher than the pre-defined value, the measuring equipment (4) sends a signal to remove the leaking cylinders from the line.
  • the cylinder (7) is required to be taken in a completely impermeable volume.
  • the conical and double O-ring surface (3) in the leak-proof compartment (2) isolates the cylinders from the external environment.
  • the section to be controlled is required to be isolated from the environment as fully impermeable. So, the impermeable environment desired for measuring is created.
  • the leak-proof compartment (2) and the impermeability surface (3) play critical roles for the measurement to be realized as free of defects. When impermeability cannot be fully provided, conducting the measurement by the measuring equipment (4) shall not be possible.
  • conical and double O-ring impermeable surface (3) is used to isolate the leak-proof compartment (2) from the external environment. They can be in different sizes, volumes and shapes.
  • Discharge valves (6) open during the lowering of the leak-proof compartment (2) in order to compensate the sudden pressure change which occurs during the closure of the leak-proof compartment (2) that includes a leakage control mechanism (1) for LPG cylinders. After the pressure changes are stabilized, the valves (6) are closed and the pressure change in the leak-proof compartment (2) is monitored by the pressure change measuring equipment (4). Compensation tank (5) is used to have a correct measurement. Compensation tank (5) provides a constant atmospheric pressure in the external environment and prevents potential pressure changes.
  • the compensation tank (5) of the invention compensates the pressure changes in the external environment and creates an environment with constant pressure. So, the pressure changes in the leak-proof compartment (2) are detected by the measurement equipment (4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Paper (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Examining Or Testing Airtightness (AREA)

Claims (4)

  1. Mécanisme de contrôle de fuite (1) utilisé pour la détection de fuite dans les cylindres de LPG (7), caractérisé en ce qu'il comporte un compartiment (2) à l'imperméabilité minimal dans lequel est placé un cylindre (7) positionné pour mesurer la fuite et isoler ledit cylindre (7) de l'environnement extérieur et un cylindre de LPG (1) contrôlé contre la fuite, comportant
    - Un compartiment résistant à l'étanchéité minimale (2),
    - Une surface imperméable (3) dans ledit compartiment étanche (2)
    - Un petit équipement de mesure (4) se trouvant entre ledit compartiment étanche (2) et le réservoir d'équilibrage (5), et relié avec des valves, et
    - Au moins un réservoir d'équilibrage (5) assurant une pressure constante extérieure et empêchant possibles changes de pression, et ainsi assurant une mesure sûre,
    - Au moins deux clapets de décharge (6) s'ouvrant et se fermant afin de décharger la pression formée à l'intérieur du mécanisme de contrôle.
  2. Mécanisme de contrôle de fuite (1) pour les cylindres de LPG (7) selon la revendication 1, caractérisé en ce qu'il comprend une surface d'imperméabilité pouvant être en formes différentes, de préférence, en forme conique avec double anneaux annulaires, et créant une imperméabilité complète afin de réaliser mesures dans ledit compartiment étanche (2).
  3. Mécanisme de contrôle de fuite (1) pour les cylindres de LPG (7) selon la revendication 1 ou 2, caractérisé en ce qu'il comprend au moins deux équipements de mesure (4) contrôlant les changements de pressure dudit compartiment étanche (2) après imperméabilité complète est obtenu, et émettant signaux requis pour séparer lesdits cylindres (7) automatiquement de la ligne selon les différences de pressure apparaissant en cas de fuite.
  4. Mécanisme de contrôle de fuite (1) pour les cylindres de LPG (7) selon la revendication 1 ou 3, caractérisé en ce qu'il comprend un réservoir d'équilibrage (5) compensant les changements de pressure à l'environnement extérieur et créant un environnement à pressure constante; et ainsi les changements de pressure dans (ledit compartiment) étanche sont correctement détectés par équipement de mesure (4).
EP09178694A 2008-12-18 2009-12-10 Mécanisme de contrôle des fuites pour cylindres LPG Not-in-force EP2199655B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2008/09620A TR200809620A2 (tr) 2008-12-18 2008-12-18 LPG tüpleri için bir kaçak kontrol mekanizması

Publications (2)

Publication Number Publication Date
EP2199655A1 EP2199655A1 (fr) 2010-06-23
EP2199655B1 true EP2199655B1 (fr) 2011-08-31

Family

ID=42121942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09178694A Not-in-force EP2199655B1 (fr) 2008-12-18 2009-12-10 Mécanisme de contrôle des fuites pour cylindres LPG

Country Status (4)

Country Link
EP (1) EP2199655B1 (fr)
AT (1) ATE522768T1 (fr)
DK (1) DK2199655T3 (fr)
TR (1) TR200809620A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11306875B2 (en) 2018-12-06 2022-04-19 Carrier Corporation Systems and methods for controlling gas flow in transportation refrigeration systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2610781T3 (en) * 2011-12-28 2015-11-09 Aygaz Anonim Sirketi Cylinder Recognition System

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1009661Y (es) 1989-03-17 1990-03-16 Repsol Butano, S.A. Dispositivo detector de fugas en envases de gases licuados del petroleo.
GB9002915D0 (en) 1990-02-09 1990-04-04 Lambrechts Nv Apparatus for detecting micro-leakage of gas from pressurised containers
DE4208841C1 (en) * 1992-03-19 1993-08-05 Deutsche Aerospace Ag, 8000 Muenchen, De Pressure chamber - has drilling in head of central chamber with synthetic sapphire to allow laser beam through the weld container filling tube
GB9403184D0 (en) 1994-02-18 1994-04-06 Boc Group Plc Methods and apparatus for leak testing
US5588472A (en) * 1995-06-14 1996-12-31 Morton International, Inc. Method for combined gas fill and proof test of pressure vessels
JP2000352539A (ja) 1999-06-10 2000-12-19 Hitto Kaihatsu Kenkyusho:Kk 気体圧力の測定値補正方法及び測定値補正装置、並びにそれを用いた密閉容器のエアリーク検出方法及び検出装置
DE10017252A1 (de) * 2000-03-29 2001-10-18 Hasenkopf Karl Peter Verkaufssystem für Gase

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11306875B2 (en) 2018-12-06 2022-04-19 Carrier Corporation Systems and methods for controlling gas flow in transportation refrigeration systems

Also Published As

Publication number Publication date
ATE522768T1 (de) 2011-09-15
TR200809620A2 (tr) 2010-07-21
DK2199655T3 (da) 2011-12-19
EP2199655A1 (fr) 2010-06-23

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