WO1998005891A1 - Soupape de prelevement avec elements de detente integres - Google Patents

Soupape de prelevement avec elements de detente integres Download PDF

Info

Publication number
WO1998005891A1
WO1998005891A1 PCT/EP1997/003830 EP9703830W WO9805891A1 WO 1998005891 A1 WO1998005891 A1 WO 1998005891A1 EP 9703830 W EP9703830 W EP 9703830W WO 9805891 A1 WO9805891 A1 WO 9805891A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve body
valve
inflow chamber
pressure relief
chamber
Prior art date
Application number
PCT/EP1997/003830
Other languages
German (de)
English (en)
Inventor
Paul Kremer
Mike Struik
Original Assignee
Ceodeux Ultra Pure Equipment Technology S.A.
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 Ceodeux Ultra Pure Equipment Technology S.A. filed Critical Ceodeux Ultra Pure Equipment Technology S.A.
Priority to AU42017/97A priority Critical patent/AU4201797A/en
Publication of WO1998005891A1 publication Critical patent/WO1998005891A1/fr

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
    • F16K1/307—Additional means used in combination with the main valve
    • 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
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs

Definitions

  • the invention relates to a removal valve for screwing into a pressure vessel, with pressure relief elements integrated in the valve body, such as rupture disks. It is known to pressure relief elements on pressure vessels, such as
  • Example rupture disc to provide that to ensure that the pressure vessel does not explode if the pressure in the pressure vessel rises inadmissible, for example in the event of a fire.
  • a safety block which is screwed into an opening of the pressure container by means of a screw-in connector.
  • the safety block then has rupture disks arranged on the side and a central through-channel with an internal thread for screwing in the removal valve.
  • the latter embodiment has the advantage that an additional opening for the removal valve on the pressure vessel is saved.
  • the removal valve is arranged on the massive safety block in a very exposed manner and there is therefore a risk of it breaking off, for example in the event of a transport accident. is particularly exposed
  • Bursting disc offered as sampling valves.
  • the rupture disc is screwed into a side threaded connector on the valve body.
  • An inlet pipe is connected to the valve seat via an inlet channel in the valve body, and a connecting channel connects the threaded connector for the rupture disk to this inlet channel.
  • a shut-off body is, as usual, assigned to the valve seat in such a way that it shuts off the connection between the inlet channel and an outlet channel above the valve seat in a closed position and releases the same connection in an open position.
  • the pressure can decrease via the inlet pipe, the inlet channel, the connecting channel and the lateral threaded connector of the rupture disk however, considerable flow losses, so that such a valve with an integrated rupture disk was not suitable for applications in which a rapid pressure reduction is required in the event of relief.
  • the invention is therefore based on the object to provide a sampling valve with integrated pressure relief means, which is excellently suitable for applications in which a rapid pressure reduction is required in the event of relief, and which is nevertheless characterized by a compact design.
  • the removal valve according to the invention for screwing into a pressure vessel comprises a) a one-piece valve body, with a foot end which forms a screw-in connector and an end face facing the interior of the pressure vessel, an opposite head end, a valve seat and an outlet channel above the valve seat, b) an inlet pipe, the first end of which is inserted into the valve body such that it forms an opening in the valve body which is connected to the outlet channel via the valve seat, and the second end of which protrudes from the valve body, c) a shut-off body which is assigned to the valve seat in such a way that it shuts off the connection between the mouth of the inlet pipe and the outlet channel in a closed position and releases the same connection in an open position, d) an actuating device for actuating the shut-off body from the open position to the closed position and vice versa, and e) in de n Valve body above the screw socket integrated pressure relief means
  • valve body has a central inflow chamber in its foot end, which axially crosses the screw-in connector and in its end face forms a large-area junction, the pressure relief means being virtually directly connected to this central inflow chamber.
  • the inlet pipe which has a substantially smaller cross section than the central inflow chamber, traverses this central inflow chamber axially and forms its opening in the valve body only above this inflow chamber.
  • the pressure relief means are connected directly to the pressure vessel via an annular space which is delimited by the inlet pipe in the central inflow chamber and forms a large annular opening in the end face of the screw-in connector.
  • the valve according to the invention consequently has relatively low flow resistances on the relief side, which ensures rapid pressure reduction and thus a high level of safety when the container is at risk of explosion.
  • This advantage is particularly pronounced if the pressure relief means have a plurality of pressure relief elements, such as rupture disks, which are arranged around the central inflow chamber and are all connected directly to the annular space in the inflow chamber.
  • Such a valve is also characterized by a low overall height in comparison to the cross section of the valve body, so that a compact and massive construction results, whereby the risk of breaking off, for example in a transport accident, is significantly reduced.
  • the valve body advantageously has one
  • Valve body section with a polygonal (for example hexagonal) cross-section wherein in the side surfaces of the polygonal
  • Ve ⁇ til Economics section each a pressure relief element is arranged.
  • Such a valve with several pressure relief elements, all directly connected to the inflow chamber according to the invention is characterized both by a particularly low pressure drop on the relief side and by a particularly compact and massive valve body.
  • the side surfaces of the polygonal valve body section, in which the pressure relief elements are preferably arranged sunk, also serve as engagement surfaces for a wrench when screwing the valve in and out.
  • the valve body tapers to form the head end of the valve body, which preferably has an essentially cylindrical shape.
  • a chamber open at the end is advantageously arranged, into which a spindle drive is inserted such that only the spindle protrudes from the chamber.
  • the projecting part of the spindle advantageously has a predetermined breaking point immediately above this chamber, so that a handwheel mounted on the free end of the spindle breaks off with a greater impact load, but the one-piece, compact and solid valve body and the internal spindle drive remain undamaged, and that Valve continues to perform its shut-off function.
  • the spindle drive has a spindle that does not protrude from the chamber at the head end of the valve body.
  • the free end of this spindle is designed as an actuating end for a valve key.
  • FIG. 1 shows a longitudinal section through a valve according to the invention
  • Figure 2 is a perspective view of the valve of Figure 1, partially in section
  • FIGS. 1 and 2 show a longitudinal section through an alternative embodiment of a valve according to the invention.
  • the valve shown in FIGS. 1 and 2 to illustrate the invention is a
  • the valve shown consists essentially of a valve body 12, an inlet pipe 14, a shut-off body 16 and an actuating member, such as the spindle drive 18 shown with the handwheel 20.
  • the valve body 12 is a solid, one-piece metal block, preferably produced by machining from a solid blank, which has at its first end a screw-in connector 22 for sealingly screwing into a bore of a pressure container equipped with an internal thread.
  • This screw-in connector 22 has an external thread 24 and forms an end face 26 which, when the valve is screwed in, faces the interior of the pressure vessel.
  • the valve body 12 has a section 28 with a quasi-hexagonal cross section (see FIG. 2) on this hexagonal valve body section 28, is followed by a conical valve body section 30, which tapers in the direction of a cylindrical head end 32 of the valve body 12.
  • the valve body 12 has at its foot end a cylindrical flow chamber 34 which is open on one side and which forms a large-area opening 36 with an enlarged cross section in the end face 26 of the screw-in connector 34, which axially crosses through the screw-in connector 34 and which extends into the hexagonal valve body section 28
  • a receiving space 40 is formed for a commercially available rupture disk or a similar pressure relief element.
  • Such a pressure relief element is shown schematically in the lower chamber in FIG. 1 indicated and designated with the reference number 42.
  • the pressure relief element 42 is completely sunk in the valve body 12, so that the six side surfaces 38 can be used as engagement surfaces for a wrench for screwing the valve in and out.
  • Very short radial connecting channels 44 connect the receiving spaces 40 to the inflow chamber 34 within the hexagonal valve body section 28, so that the pressure relief elements 42 are in a virtually direct connection to the inflow chamber 34.
  • the inlet pipe 14 which has a substantially smaller cross section than the cylindrical inflow chamber 34, axially traverses the inflow chamber 34.
  • the inlet pipe 14 is screwed in at one end in a sealed manner in a bore 46 in the valve body 12.
  • the opposite end of the inlet tube 14 protrudes from the foot end of the valve body and can be designed, for example, as a dip tube.
  • the bore 46 extends in the axial extension of the inflow chamber 34.
  • the receiving spaces 40 for the pressure relief elements 42 are directly connected to the interior via an annular space which is delimited by the inlet pipe 14 in the inflow chamber 34 and forms a large-area annular opening around the inlet pipe 14 in the end face 36 of the screw-in connector 22 of the pressure vessel connected.
  • the valve according to the invention consequently has relatively low flow resistances on the relief side, which ensures rapid pressure reduction and thus a high level of safety when the container is at risk of explosion.
  • the inlet pipe 14 opens into a short inlet channel 48 which is located directly below a valve seat 50.
  • an outlet channel 52 is arranged in the conical valve body section 30, which is connected to the inlet channel 48 via the valve seat 50.
  • This outlet channel 52 opens into a connection bore 54 with an internal thread, which is arranged in the conical valve body section 30.
  • connection bore 54 can be connected to the valve of an extraction line (not shown).
  • the shut-off body 16 can be moved axially to the valve seat 50 from an open position into a closed position and vice versa by the spindle drive 18. In the closed position, the shut-off body 16 shuts off the valve seat 50 and thus the connection between the inlet channel 48 and the outlet channel 52. In the open position, it releases the same connection, so that the contents of the pressure vessel can flow in via the inlet pipe 14, the inlet channel 48, the valve seat 50, the outlet channel 52 and into the connection bore 54.
  • the inlet pipe 14 is designed as an immersion pipe, which is immersed in a liquid phase in the pressure vessel, but the valve is screwed into the pressure vessel above the liquid level in the region of a gaseous phase, the liquid phase can be removed from the pressure vessel via the connection bore 54 while Via the inflow chamber 34, the pressure relief elements 42 are simultaneously in direct contact with the gaseous phase.
  • the cylindrical head end 32 has a frontally open chamber 56, into which the spindle drive 18 is inserted such that, in the embodiment according to FIGS. 1 and 2, only the free end of the spindle protrudes from the head end 32.
  • the wall of the chamber 56 is relatively solid, so that the spindle drive is excellently protected against shock loads.
  • the handwheel 20 is mounted directly above the head end 32 on the free end of the lockers / 58 and, for better handling, has a slightly larger diameter than the cylindrical head end 32 of the valve body 12.
  • Below the handwheel 20, but still outside the chamber 56 the spindle 58 has a predetermined breaking point 60, so that the handwheel breaks off in the event of a strong impact load, without the spindle drive itself being significantly damaged or broken off.
  • the valve design according to FIG. 3 differs from the valve design according to FIGS.

Landscapes

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

Abstract

L'invention concerne une soupape de prélèvement destinée à être vissée dans un récipient sous pression, qui comprend un corps de soupape (12) en une seule pièce, dont l'embase forme un manchon à visser (22). Le corps de soupape (12) présente, sur cette embase, une chambre d'arrivée de flux (34) centrale, qui traverse axialement ledit manchon à visser (22), manchon dont la face (26) définit un orifice d'entrée (36) d'une grande surface. Un tube d'entrée (14) traverse axialement cette chambre d'arrivée de flux (34), présente une section sensiblement plus petite que celle de la chambre d'arrivée de flux (34) centrale et forme un orifice d'entrée dans le corps de soupape (12), au-dessus de ladite chambre d'arrivée de flux (34) centrale, directement au-dessous d'un siège de soupape (50) comprenant un corps d'arrêt (16). Des moyens de détente (42) sont en liaison quasi directe avec la chambre d'arrivée de flux (34) centrale.
PCT/EP1997/003830 1996-08-01 1997-07-17 Soupape de prelevement avec elements de detente integres WO1998005891A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU42017/97A AU4201797A (en) 1996-08-01 1997-07-17 Tapping valve with integrated pressure relief elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU88798 1996-08-01
LU88798A LU88798A1 (de) 1996-08-01 1996-08-01 Entnahmeventil mit integrierten Druckentlastungselementen

Publications (1)

Publication Number Publication Date
WO1998005891A1 true WO1998005891A1 (fr) 1998-02-12

Family

ID=19731615

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/003830 WO1998005891A1 (fr) 1996-08-01 1997-07-17 Soupape de prelevement avec elements de detente integres

Country Status (3)

Country Link
AU (1) AU4201797A (fr)
LU (1) LU88798A1 (fr)
WO (1) WO1998005891A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
WO2014111957A1 (fr) 2013-01-21 2014-07-24 Apparao Satyam Promédicaments d'agents thérapeutiques libérant de l'oxyde nitrique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719532A (en) * 1952-08-19 1955-10-04 Specialties Dev Corp Valve
DE2102343A1 (de) * 1971-01-19 1972-08-03 Carl Esser Fa Hochdruckflaschenventil
US4635680A (en) * 1984-02-02 1987-01-13 Fang Reuy Feng Safety gas flow regulator
EP0395283A1 (fr) * 1989-04-28 1990-10-31 Air Products And Chemicals, Inc. Soupape de réduction
FR2685428A1 (fr) * 1991-12-23 1993-06-25 Ceodeux Sa Robinet pour gaz comprimes ou liquefies.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719532A (en) * 1952-08-19 1955-10-04 Specialties Dev Corp Valve
DE2102343A1 (de) * 1971-01-19 1972-08-03 Carl Esser Fa Hochdruckflaschenventil
US4635680A (en) * 1984-02-02 1987-01-13 Fang Reuy Feng Safety gas flow regulator
EP0395283A1 (fr) * 1989-04-28 1990-10-31 Air Products And Chemicals, Inc. Soupape de réduction
FR2685428A1 (fr) * 1991-12-23 1993-06-25 Ceodeux Sa Robinet pour gaz comprimes ou liquefies.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
WO2014111957A1 (fr) 2013-01-21 2014-07-24 Apparao Satyam Promédicaments d'agents thérapeutiques libérant de l'oxyde nitrique

Also Published As

Publication number Publication date
AU4201797A (en) 1998-02-25
LU88798A1 (de) 1998-02-01

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