WO2000053967A1 - Coupling assembly for petroleum liquefied gas with quick fastening, automatic disconnection and retention and relief valves - Google Patents

Coupling assembly for petroleum liquefied gas with quick fastening, automatic disconnection and retention and relief valves

Info

Publication number
WO2000053967A1
WO2000053967A1 PCT/BR2000/000020 BR0000020W WO0053967A1 WO 2000053967 A1 WO2000053967 A1 WO 2000053967A1 BR 0000020 W BR0000020 W BR 0000020W WO 0053967 A1 WO0053967 A1 WO 0053967A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening
pressure
retention
pin
sealing
Prior art date
Application number
PCT/BR2000/000020
Other languages
French (fr)
Inventor
Alexandre Giuliani
Original Assignee
Alexandre Giuliani
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 Alexandre Giuliani filed Critical Alexandre Giuliani
Priority to US09/936,097 priority Critical patent/US6729348B1/en
Priority to AU34107/00A priority patent/AU3410700A/en
Priority to EP20000912276 priority patent/EP1166004A1/en
Publication of WO2000053967A1 publication Critical patent/WO2000053967A1/en

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
    • 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
    • F16K17/0406—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 balls
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y10T137/612—Tapping a pipe, keg, or apertured tank under pressure
    • Y10T137/613—With valved closure or bung
    • Y10T137/6137—Longitudinal movement of valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87965—Valve- or closure-operated by coupling motion

Definitions

  • the current patent has the purpose to present adapted soiutions to one only assembly, facilitating the use of Petroleum Liquefied Gas (GLP), minimizing customers efforts in their homes and workplaces, and increase the safety during its use as well as during transportation and warehousing, being this assembly, mounted on the steel container's mouth used in transportation and storage of the petroleum liquefied gas
  • the technics state for the valve used on the container's mouth is regulated by the Norm NBR 8614
  • the pressure regulator for the petroleum liquefied gas is regulated by the Norm NBR 8473
  • the steel container used for transportation and storage of the petroleum liquefied gas by NBR 8460.
  • Another inconvenience is the storage and transportation, because the current safety valve used, break itself with the increasing of internal pressure caused by the volume decrease (eg caused by the container crash) or by increase of temperature caused by fire, in both cases, all gas is liberated into the environment increasing the fuel available for combustion, and therefore increasing a lot the risk of fire in the first case and the size of fire in the second one This also happens when the user stores the container in an improper place and/or manner especially when not aware of this problem
  • this assembly was projected and is composed of - quick fastening and disconnection system, where it happens by a simple effort and movement applied by the regulator's pin on the spheres and with a contrary force in the disconnection, performing also with safety because the disconnection happens automatically when a pre-determined pressure set in the project is reached, protecting the rest of the system against the increase of pressure,
  • kit - the drawing 1/6 is the standard scheme for the installation of the petroleum liquefied gas transmission system, where item 1 is the steel container for storage and transport of the petroleum liquefied gas, item 2 is the kit described in this report, item 3 is the pressure regulator and item 4 is the PVS hose;
  • the drawing 3/6 presents, in a partial cut the framework (1 1 ) and the bushing welded on the framework (1 2) of the steel container, the kit (2) assembled on the container's mouth, being the pressure regulator (3) in the fastening position, without scale,
  • the kit consists of the quick fastening system (fig 1 ) of manual operation, by the simple effort, in which the pin (2 17) assembled on the pressure regulate (3) introduced by a force applied in the direction indicated in the drawing by arrow "A" (drawing 2/6) in the mobile female point (2 1 + 2.3) is guided, therefore gets no inclination making it easier to complete the introduction avoiding any leakage to happen at the moment of the container's substitution during its operation, thus, continuing the movement the detail "D” (drawing 5/6) meets the spheres (2 5) making the spring (2.4) which is in contact with the mobile female point (2J+2 3) releases until the spheres (2 5) to meet the channel on the fastening system body (2.2), the spheres (2 5) then are displaced by the front side angle of detail "D” (drawing 5/6) and the pin point diameter (2 17) indicated by letter “C” (drawing 5/6) already met the first (2 6) and second fastening sealing rings (2.7), it starts to push the
  • the retention valve (fig 2) in relation to the whole kit, was planned in order to have the close of the gas at the moment of the disconnection, and the opening as described above only after the fastening sealing, being also the projected passage area to provide the maximum flow on the container's filling operation, to complete, it has a displacement guide (2 12) and a guide tightening ring (2J 3), to maintain the proper angle of the sealing ring (2 9), assembled on the retention pin (2J0) in relation to the tightening body (2 8), even the spring (2.1 1 ) having any variation on the contact angle
  • the retention valve pin (2 10) has an internal relief valve (fig 3), constituted by a sphere (2 14), which performs tne sealing, a spring (2J5) compressed between the sphere and a screw (2 16), acting in result of the distance, a force on the sphere, and therefore, a pressure of opening for the glass passage, being this pressure higher during disconnection, but lower than the maximum test pressure of the steel container.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

It has a fastening system (fig.1) of manual operation by a simple effort, being this system designed in order to disconnect the system in case of an internal increase of pressure occur protecting this way the rest of the system and the gas supply from this pressure increase. It also contains a retention valve (fig.2) to seal the steel container when disconnected. The relief valve (fig.3) placed inside the retention valve pin, purposes only to liberate the excess gas in order to have the pressure back to the standard safety level, being very important in case of accident and/or fire the relief valve pressure level is higher than the automatic disconnection pressure level in case the transmission system is in operation, this way first the fastening system is liberated and after the relief valve is liberated, but lower than the maximum test pressure of the steel container.

Description

"Coupling Assembly for Petroleum Liquefied Gas with quick fastening, Automatic Disconnection and Retention and Relief Valves"
The current patent has the purpose to present adapted soiutions to one only assembly, facilitating the use of Petroleum Liquefied Gas (GLP), minimizing customers efforts in their homes and workplaces, and increase the safety during its use as well as during transportation and warehousing, being this assembly, mounted on the steel container's mouth used in transportation and storage of the petroleum liquefied gas The technics state for the valve used on the container's mouth is regulated by the Norm NBR 8614, the pressure regulator for the petroleum liquefied gas is regulated by the Norm NBR 8473, and the steel container used for transportation and storage of the petroleum liquefied gas, by NBR 8460. These norms are issued by the Brazilian Technical Norms Association ( ABNT)
The utilization in large scale of the petroleum iiquefied gas (GLP), in households as well as in business and industries, causes inconvenient risks to the users, risks on storage and transportation by the distribution system, by the incorrect handling on the exchange of containers, and also the storage during use
In the places where the petroleum liquefied gas is used there is no condition to measure the available quantity, and for this reason the exchange of the empty container by the full one has to be performed while the gas is burning or with the burning in operation (for example: stove, water heating, forklifts, etc ), causing a significant waste of time It is frequent that the lack of tools to exchange the containers make the disconnection of the thread impossible, caused by rust or the thread's high torque and even the physical strength of the user impedes the completion of the activity. When connecting the full container, starting to turn the thread before the sealing of the regulator pin with the rubber ring, the retention valve is already open causing a little leakage, and it is worse when the operation in turning into the thread occurs incorrectly, which can cause a thread damage maintaining the pin out of its proper place causing a continuous leakage of gas into the environment, many times, in trying to exchange some wounds and cuts to the person because of space conditions and the size of the pressure regulator lever occur Another problem is that during the steel container's filling up with the petroleum liquefied gas, there exists a little leakage, but it is considerable taking into consideration the volume of the filling operation daily into the environment
Another inconvenience is the storage and transportation, because the current safety valve used, break itself with the increasing of internal pressure caused by the volume decrease (eg caused by the container crash) or by increase of temperature caused by fire, in both cases, all gas is liberated into the environment increasing the fuel available for combustion, and therefore increasing a lot the risk of fire in the first case and the size of fire in the second one This also happens when the user stores the container in an improper place and/or manner especially when not aware of this problem
Thinking about al! the inconvenience and in increasing the safety, without affecting the filling up operation, and therefore the distribution system, this assembly was projected and is composed of - quick fastening and disconnection system, where it happens by a simple effort and movement applied by the regulator's pin on the spheres and with a contrary force in the disconnection, performing also with safety because the disconnection happens automatically when a pre-determined pressure set in the project is reached, protecting the rest of the system against the increase of pressure,
- double sealing system in the fastening of the steel container with the pressure regulator pin in order to avoid that the retention valve open before the sealing by the rubber rings occur avoiding the leakage into the environment, - the retention valve sealing system with guided pin in order to avoid that the sealing is damaged when the container is not fastened,
- the relief valve safety system which by the internal pressure increase, because of the above mentioned problems, liberates enough volume of gas in order to decrease the internal pressure returning to the sealing position The attached drawing are in numerical conformity among themselves presenting a kit - the drawing 1/6, is the standard scheme for the installation of the petroleum liquefied gas transmission system, where item 1 is the steel container for storage and transport of the petroleum liquefied gas, item 2 is the kit described in this report, item 3 is the pressure regulator and item 4 is the PVS hose;
- the drawing 2/6, presents the kit's cut view in order to show the fastening moment, being in the final position of the fastening pin (2J 7) of the pressure regulator, but with no scale,
- the drawing 3/6 presents, in a partial cut the framework (1 1 ) and the bushing welded on the framework (1 2) of the steel container, the kit (2) assembled on the container's mouth, being the pressure regulator (3) in the fastening position, without scale,
- the drawing 4/6, presents the kit's cut view in the neutral and fastened position, where all the items of the kit can be observed in scale 2 1 , - the drawing 5/6, presents a cut figure of the kit formed by the figures
1 , 2 and 3, and being the kit and the pressure regulator (3) with the pin (2J7) assembled in the disconnected position, in scale 1 :1 ;
- the drawing 6/6 divided in figures, where a number 1 is the fastening and disconnection system (Scale 2 1 ), number 2 is the retention valve body (Scale 2:1 ) and number 3 is the retention valve pin with the internal assembly which forms the relief valve (Scale 3:1 )
In conformity with the drawing above mentioned, the kit consists of the quick fastening system (fig 1 ) of manual operation, by the simple effort, in which the pin (2 17) assembled on the pressure regulate (3) introduced by a force applied in the direction indicated in the drawing by arrow "A" (drawing 2/6) in the mobile female point (2 1 + 2.3) is guided, therefore gets no inclination making it easier to complete the introduction avoiding any leakage to happen at the moment of the container's substitution during its operation, thus, continuing the movement the detail "D" (drawing 5/6) meets the spheres (2 5) making the spring (2.4) which is in contact with the mobile female point (2J+2 3) releases until the spheres (2 5) to meet the channel on the fastening system body (2.2), the spheres (2 5) then are displaced by the front side angle of detail "D" (drawing 5/6) and the pin point diameter (2 17) indicated by letter "C" (drawing 5/6) already met the first (2 6) and second fastening sealing rings (2.7), it starts to push the retention valve (2 16) point, the retention valve opens (2.9+2 10), the detail "D" finishes to pass by spheres (2 5), at this moment, the spring (2.4), which released wants to return to the neural original position pulling the whole system back composed by mobile female point (2J+2 3) and the spheres (2 5), and a metallic click can be heard, the regulator is released, the pin (2 17) of the regulator returns fixing itself between the spheres (2.5) and the angle indicated by the letter "E" (drawing 5/6).
Being the system fastened (drawing 2/6 and 3/6) as a result of the area under the internal pressure, a part of the total force generated by the contact of the spheres with the angle of the pin (2J7) indicated by the letter "E" is transferred being the force pre-determined for the spring (2.4) to nullify this force, but with an increase of pressure, it starts to transfer a higher force making the spring to release on the direction indicated by letter "B" ( drawing 5/6) and the fastening goes with spheres movement, thus the higher the pressure, the higher is the force acts on the pin and the more the spring releases until the spheres meet the channel on the superior part of the body's neutral position (2.2) of the fastening system, liberating the pin (2 17), because detail "D" has already been liberated, being this disconnection pressure also pre-determined on the project
The retention valve (fig 2), in relation to the whole kit, was planned in order to have the close of the gas at the moment of the disconnection, and the opening as described above only after the fastening sealing, being also the projected passage area to provide the maximum flow on the container's filling operation, to complete, it has a displacement guide (2 12) and a guide tightening ring (2J 3), to maintain the proper angle of the sealing ring (2 9), assembled on the retention pin (2J0) in relation to the tightening body (2 8), even the spring (2.1 1 ) having any variation on the contact angle The retention valve pin (2 10) has an internal relief valve (fig 3), constituted by a sphere (2 14), which performs tne sealing, a spring (2J5) compressed between the sphere and a screw (2 16), acting in result of the distance, a force on the sphere, and therefore, a pressure of opening for the glass passage, being this pressure higher during disconnection, but lower than the maximum test pressure of the steel container.
It is important to emphasize, that for each application, it may exist a specific need, such as the size of the external thread for the container's mouth, the fastening force, the internal disconnection pressure, or even a higher flow of the valves, thus this kind of kit can be obtained in different sizes.

Claims

CLAIM
1 ° ) "Coupling Assembly for Petroleum Liquefied Gas with quick fastening, Automatic Disconnection and Retention and Relief Valves" constituted by a fastening system, a sealing system for fastened and disconnected system and doubled safety system, characterized by the fact that the system does the fastening, disconnection and sealing without any leakage of gas into the environment, with a simple force applied in one only direction, and yet disconnects automatically with pressure increases liberating sufficient gas to decrease the internal pressure in case the steel gas container is requested a higher pressure than the safety limit, having for this to occur, a fastening body (2.2) in order to fasten the steel container mouth (1 ), a mobile point (2 1 + 2.3), which is moved by the spheres (2 5) being put into action by the pressure regulator pin (2 17), and consequently puts into action the spring (24), liberating this way the fastening as well as the disconnection, a sealing made by two rings, which seals the recipients junction (1 ) regulator (3), a fastening body (2 8), a fastening pin (2.10), spring (2 11 ), sealing ring (2.9), displacement guide ring (2 12) for the pin (2 10), lock ring (2 13) to lock this sub-assembly in position, which form a retention valve (fig.2) and finally a relief valve (fig 3), assembled internally to the pin (2 10) of the retention valve (fig 2), constituted of sphere ( 2J4), spring (2 15) with a predetermined load and screw (2 16) which is used assemble the relief valve and also the retention valve point.
PCT/BR2000/000020 1999-03-08 2000-03-08 Coupling assembly for petroleum liquefied gas with quick fastening, automatic disconnection and retention and relief valves WO2000053967A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09/936,097 US6729348B1 (en) 1999-03-08 2000-03-08 Coupling assembly for petroleum liquefied gas with quick fastening automatic disconnection and retention and relief valve
AU34107/00A AU3410700A (en) 1999-03-08 2000-03-08 Coupling assembly for petroleum liquefied gas with quick fastening, automatic disconnection and retention and relief valves
EP20000912276 EP1166004A1 (en) 1999-03-08 2000-03-08 Coupling assembly for petroleum liquefied gas with quick fastening, automatic disconnection and retention and relief valves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR9900971A BR9900971C1 (en) 1999-03-08 1999-03-08 Coupling set for liquefied petroleum gas container with quick fixing, automatic uncoupling and check and relief valves
BRPI9900971-4 1999-03-08

Publications (1)

Publication Number Publication Date
WO2000053967A1 true WO2000053967A1 (en) 2000-09-14

Family

ID=4072164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2000/000020 WO2000053967A1 (en) 1999-03-08 2000-03-08 Coupling assembly for petroleum liquefied gas with quick fastening, automatic disconnection and retention and relief valves

Country Status (5)

Country Link
US (1) US6729348B1 (en)
EP (1) EP1166004A1 (en)
AU (1) AU3410700A (en)
BR (1) BR9900971C1 (en)
WO (1) WO2000053967A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1881248A1 (en) * 2006-07-19 2008-01-23 Dehon S.A. Tap for biphasic compound
CN105221923A (en) * 2015-08-24 2016-01-06 湖北三江航天红峰控制有限公司 A kind of filling apparatus being applied to LNG bottle
CN116357888A (en) * 2023-06-02 2023-06-30 常州市乐萌压力容器有限公司 Safety interlocking device for quick-opening pressure vessel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7841580B2 (en) * 2005-04-18 2010-11-30 Macro Technologies, Inc. Pressurized fluid coupler with anti-recoil feature and methods
GB2431453B (en) * 2005-10-21 2007-12-12 Aker Kvaerner Subsea Ltd Poppet valves
CN112923109B (en) * 2021-03-22 2024-04-09 上海核工程研究设计院股份有限公司 Safety pressure relief valve system
CN115614520B (en) * 2022-12-19 2023-04-14 常州市潞城燃气设备股份有限公司 Automatic bleeding valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988129A (en) * 1987-11-25 1991-01-29 Nitto Kohki Co., Ltd. Fluid pipe coupling
US5129423A (en) * 1990-03-16 1992-07-14 Aeroquip Corporation No-spill fluid security coupling
US5365972A (en) * 1993-07-30 1994-11-22 National Coupling Co., Inc. Undersea hydraulic coupling with bleed valve
US5398723A (en) * 1994-02-28 1995-03-21 Aeroquip Corporation Fluid coupling with adjustable pressure relief valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759291A (en) * 1972-06-29 1973-09-18 Mcdonald Mfg Co A Y Valve fitting for bottles
US4844123A (en) * 1988-09-06 1989-07-04 Western/Scott Fetzer Company Quick-connect cylinder valve and connector
US6000419A (en) * 1994-10-14 1999-12-14 Carbagas Connection system for a pressure cylinder
GB9724168D0 (en) * 1997-11-14 1998-01-14 Air Prod & Chem Gas control device and method of supplying gas

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988129A (en) * 1987-11-25 1991-01-29 Nitto Kohki Co., Ltd. Fluid pipe coupling
US5129423A (en) * 1990-03-16 1992-07-14 Aeroquip Corporation No-spill fluid security coupling
US5365972A (en) * 1993-07-30 1994-11-22 National Coupling Co., Inc. Undersea hydraulic coupling with bleed valve
US5398723A (en) * 1994-02-28 1995-03-21 Aeroquip Corporation Fluid coupling with adjustable pressure relief valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1881248A1 (en) * 2006-07-19 2008-01-23 Dehon S.A. Tap for biphasic compound
FR2904083A1 (en) * 2006-07-19 2008-01-25 Dehon Sa Sa VALVE EQUIPMENT FOR BIPHASIC COMPOUND.
CN105221923A (en) * 2015-08-24 2016-01-06 湖北三江航天红峰控制有限公司 A kind of filling apparatus being applied to LNG bottle
CN116357888A (en) * 2023-06-02 2023-06-30 常州市乐萌压力容器有限公司 Safety interlocking device for quick-opening pressure vessel

Also Published As

Publication number Publication date
EP1166004A1 (en) 2002-01-02
BR9900971A (en) 2000-11-14
AU3410700A (en) 2000-09-28
US6729348B1 (en) 2004-05-04
BR9900971C1 (en) 2001-01-16

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