WO1994015124A1 - An under-valve device for the interception of a flow for a gas bottle - Google Patents

An under-valve device for the interception of a flow for a gas bottle Download PDF

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Publication number
WO1994015124A1
WO1994015124A1 PCT/IT1993/000013 IT9300013W WO9415124A1 WO 1994015124 A1 WO1994015124 A1 WO 1994015124A1 IT 9300013 W IT9300013 W IT 9300013W WO 9415124 A1 WO9415124 A1 WO 9415124A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
valve
bottle
under
tap
Prior art date
Application number
PCT/IT1993/000013
Other languages
French (fr)
Inventor
Enzo Maria Notargiacomo
Original Assignee
Enzo Maria Notargiacomo
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 Enzo Maria Notargiacomo filed Critical Enzo Maria Notargiacomo
Publication of WO1994015124A1 publication Critical patent/WO1994015124A1/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/304—Shut-off valves with additional means
    • F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/307—Additional means used in combination with the main valve
    • 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
    • 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
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/048—Methods for emptying or filling by maintaining residual 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
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0745—Gas bottles

Definitions

  • the present invention concerns an under-valve device for the interception of a flow for preventing the complete emptying of gas bottles, maintaining inside said bottles a predetermined residual pressure, and that allows the free loading of said bottles.
  • valves are known - inserted in series behind the tap with a pin valve that opens and closes the gas bottles - provided with an obturator consisting of a small spring piston that opens the passage for the gas only when the pressure inside the bottle reaches a value superior to the one of a predetermined calibration. Said valves have many and heavy inconveniences:
  • the aim set forth is reached by means of the device according to he present invention, mainly consisting of an under-valve for the interception of the flow that may be inserted between the top of the bottle and the delivery tap or behind the tap, provided with two parallel means for the alternative passage of the gases in the two senses, for the loading of the bottle and for the delivery, that are automatically operated by the pressure of the gases according to a predetermined calibration.
  • Figure 1 shows a vertical scheme of an under-valve device for the interception of the flow for gas bottles according to the present invention.
  • FIG. 1 shows in detail the components of one of the parallel alternative gas passage means.
  • Figure 3 shows the under-valve and the tap mounted together.
  • Figure 4 shows the under-valve realized in one piece with the tap.
  • the enclosed figures show an under-valve device for the interception of a flow for gas bottles, comprising:
  • said means A consists in a vertical duct 10 performed in the structure S body, connected with the valve room 11 in which the following components are provided:
  • edge 7 has also the function of a rest.
  • said means B consists of a vertical duct 8 and of a valve room 9 parallel and opposite to the corresponding duct 10 and room 11 of above mentioned means A, realized with identical components like the already described elements 1, 2, 3, 4 ,5, 6, 7.
  • the gas under pressure comes in from tap R, meets hole 12 of the bottom 2 of the valve A and when entering the holes 5, closes the valve A;
  • the gas enters through the duct 8 into valve B overcoming the resistance of its spring 3 so that the obturator 1 moves backwards and the gas enters the valve room 9 and through hole 5 of the obturator 1 passes through a cavity 13 of the obturator and, through the hole 12 of the bottom 2, enters into the bottle;
  • said means A and B work in a sense opposite to the one already described.
  • the device may be installed for the outlet after the delivery tap R, instead like an under- valve between the gas bottle and said tap R; in such case, different connection shapes are requested for different gas kinds.

Landscapes

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

Abstract

The device according to the present invention consists of an under-valve (S) for the interception of the flow, that may be inserted between the top of the gas bottle and the delivery tap (R) or it may realized in one piece with the tap, provided with two parallel means (A) and (B), for the alternative passage of the gas in the two senses, for the loading and the delivery of the bottle, that are automatically operated, according to the predetermined calibration, by the pressures of the gases, for preventing the complete emptying of the bottle.

Description

"AN UNDER-VALVE DEVICE FOR THE INTERCEPTION OF A FLOW FOR A GAS BOTTLE"
The present invention concerns an under-valve device for the interception of a flow for preventing the complete emptying of gas bottles, maintaining inside said bottles a predetermined residual pressure, and that allows the free loading of said bottles.
At present valves are known - inserted in series behind the tap with a pin valve that opens and closes the gas bottles - provided with an obturator consisting of a small spring piston that opens the passage for the gas only when the pressure inside the bottle reaches a value superior to the one of a predetermined calibration. Said valves have many and heavy inconveniences:
- for loading the bottle, a specific element is necesary that pushes said small piston backwards and opens the passage;
- said small piston remains into contact with the external ambient and might become dirty and not sealing anymore;
- the insertion of the valve onto the bottles requests the changing of all existing taps;
- as the bottles containing the different kinds of gases used in hospitals and nursing homes must be provided with different and personalized connections for preventing accidental confusion in use, it seems to be necessary to apply as many valves as are the different kinds of gases.
It is the aim of the present invention to overcome all above mentioned inconveniences by means of a device that does not request particular elements for loading the bottle, does not have parts in contact with the ambient, does not imply the replacing of all existing taps and is the same for any kind of gas contained in said bottles.
The aim set forth is reached by means of the device according to he present invention, mainly consisting of an under-valve for the interception of the flow that may be inserted between the top of the bottle and the delivery tap or behind the tap, provided with two parallel means for the alternative passage of the gases in the two senses, for the loading of the bottle and for the delivery, that are automatically operated by the pressure of the gases according to a predetermined calibration.
The present invention will be explained more in detail hereinbelow according to the enclosed drawings in which a preferred embodiment is shown. Figure 1 shows a vertical scheme of an under-valve device for the interception of the flow for gas bottles according to the present invention.
Figure 2 shows in detail the components of one of the parallel alternative gas passage means.
Figure 3 shows the under-valve and the tap mounted together.
Figure 4 shows the under-valve realized in one piece with the tap.
The enclosed figures show an under-valve device for the interception of a flow for gas bottles, comprising:
- an under-valve structure S that may be installed between the bottle and the delivery tap R;
- a means A for the passage of the gas during the discharge phase, that opens and remains open until the predetermined value of the residual pressure inside the bottle has been reached and that may be, e.g., of 0.5 atmosperes;
- a means B for the passage of the gas during the loading phase of the bottle, that opens under gas pressures superior to the predetermined calibration value that may be, as above, of 0.5 atmospheres. Relating now to the realization of the figures, said means A consists in a vertical duct 10 performed in the structure S body, connected with the valve room 11 in which the following components are provided:
- an obturator 1, plane or of different shapes, provided with holes 5 and with a guide pin 6 that will also provide for maintaining the o-ring 4 in its seat;
- a bottom 2, not plane, for guiding the obturator 1;
- a spring 3 that never gets completely squeezed and therefore never weakens, so that said holes 5 always remain open;
- an o-ring 4 partially immersed in edge 7 so that even under the highest pressures it may be compressed of the requested amount because said edge 7 has also the function of a rest.
According to the present invention said means B consists of a vertical duct 8 and of a valve room 9 parallel and opposite to the corresponding duct 10 and room 11 of above mentioned means A, realized with identical components like the already described elements 1, 2, 3, 4 ,5, 6, 7.
The functioning of the device according to the present invention may be described as follows: - the previous calibration of said springs 3 of means A and B is performed corresponding, e.g., to 0.5 atmospheres;
- in the phase of loading the bottle, the gas under pressure comes in from tap R, meets hole 12 of the bottom 2 of the valve A and when entering the holes 5, closes the valve A;
- still in the loading phase, the gas enters through the duct 8 into valve B overcoming the resistance of its spring 3 so that the obturator 1 moves backwards and the gas enters the valve room 9 and through hole 5 of the obturator 1 passes through a cavity 13 of the obturator and, through the hole 12 of the bottom 2, enters into the bottle;
- in the delivery phase of the bottle said means A and B work in a sense opposite to the one already described.
As already mentioned, in a possible variant of the present invention the device may be installed for the outlet after the delivery tap R, instead like an under- valve between the gas bottle and said tap R; in such case, different connection shapes are requested for different gas kinds.

Claims

1. An under-valve device for the interception of a flow for gas bottles, that prevents the complete emptying of the gas bottles maintaining inside them a predetermined residual pressure and that allows the free loading of said bottles, characterized in:
- an under-valve structure (S) that may be installed between the bottle and the delivery tap (R);
- a means (A) for the passage of the gas during the delivery phase that opens and remains open until a predetermined value of the pressure of the residual gas inside the bottle has been reached, consisting of a vertical duct (10) provided in the structure (S) body and connected to the valve room (11) where all elements are provided;
- an obturator (1), plane or of different shapes, provided with holes (5) and with a guide pin (6), having also the function of keeping the o-ring (4) in its seat;
- a bottom (2), not plane, for guiding the obturator
(i);
- a spring (3) that never gets completely squeezed and therefore is never weakened so that said holes (5) remain always open;
- an o-ring (4) partially immersed in an edge (7) so that, even under the highest pressures, it gets squeezed only for the allowed amount as said egde has the function of a rest; - a means (B) for the passage of the gas during the loading phase of the bottle, that opens under gas pressures superior to the predetermined calibration value, consisting of a vertical duct (8) and of a valve room (9), parallel and opposite to the corresponding duct (10) and room (11) of said valve (A) and therefore realized with elements identical to elements (1, 2, 3, 4, 5, 6, 7).
2. A device according to claim 1, characterized in that in the loading phase of the bottle the gas under pressure comes in from tap (R) , meets hole (12) of the bottom (2) of valve (A) and, passing through holes (5), closes said valve (A).
3. A device according to claim 1, characterized in that in the loading phase the gas passes through duct (8) into valve (B) overcoming the resistance of its spring (3) , so that the obturator (1) moves backwards and the gas penetrates the valve room (9) and through holes (5) of the obturator (1) passes into cavities (13) and through hole (12) of bottom (2), enters inside the bottle.
4. A device according to the precedent claims, characterized in that in the delivery phase said means (A) and (B) work in a sense opposite to the one mentioned for the loading phase of the bottle.
5. A device according to claim 1, characterized in that it is installed at the outlet of delivery tap (R) with different shapes for different gas connections.
6. A device for gas bottles according to claim 1, characterized in that it may be realized in one piece with the tap.
PCT/IT1993/000013 1992-12-18 1993-02-18 An under-valve device for the interception of a flow for a gas bottle WO1994015124A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM920908A IT1256560B (en) 1992-12-18 1992-12-18 UNDER-VALVE INTERCEPTING DEVICE FOR FLOW GAS CYLINDER
ITRM92A000908 1992-12-18

Publications (1)

Publication Number Publication Date
WO1994015124A1 true WO1994015124A1 (en) 1994-07-07

Family

ID=11401339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1993/000013 WO1994015124A1 (en) 1992-12-18 1993-02-18 An under-valve device for the interception of a flow for a gas bottle

Country Status (2)

Country Link
IT (1) IT1256560B (en)
WO (1) WO1994015124A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2775332A1 (en) * 1998-02-25 1999-08-27 Hampiaux Et Fils Sa Gas cylinder insert with filling and pressure reduction valves
GB2358089A (en) * 1996-10-09 2001-07-11 Secr Defence Dielectic composites
EP1813853A1 (en) * 2006-01-27 2007-08-01 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude High pressure gas container with an auxiliary valve and process for filling it

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE835969C (en) * 1950-03-03 1952-04-07 Linde Eismasch Ag Process to prevent the contamination of valuable gases in steel cylinders and valve for carrying out the process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE835969C (en) * 1950-03-03 1952-04-07 Linde Eismasch Ag Process to prevent the contamination of valuable gases in steel cylinders and valve for carrying out the process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358089A (en) * 1996-10-09 2001-07-11 Secr Defence Dielectic composites
GB2358089B (en) * 1996-10-09 2001-09-05 Secr Defence Dielectric media
FR2775332A1 (en) * 1998-02-25 1999-08-27 Hampiaux Et Fils Sa Gas cylinder insert with filling and pressure reduction valves
EP1813853A1 (en) * 2006-01-27 2007-08-01 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude High pressure gas container with an auxiliary valve and process for filling it

Also Published As

Publication number Publication date
IT1256560B (en) 1995-12-07
ITRM920908A1 (en) 1994-06-18
ITRM920908A0 (en) 1992-12-18

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