US3216611A - Device for providing rapid communication between two reservoirs at different pressures - Google Patents

Device for providing rapid communication between two reservoirs at different pressures Download PDF

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Publication number
US3216611A
US3216611A US296994A US29699463A US3216611A US 3216611 A US3216611 A US 3216611A US 296994 A US296994 A US 296994A US 29699463 A US29699463 A US 29699463A US 3216611 A US3216611 A US 3216611A
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US
United States
Prior art keywords
intermediate chamber
diaphragm
pressure
sectors
communication
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.)
Expired - Lifetime
Application number
US296994A
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English (en)
Inventor
Lechevallier Maurice
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Commissariat a lEnergie Atomique CEA
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Publication of US3216611A publication Critical patent/US3216611A/en
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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • 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
    • F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
    • F16K13/04—Other constructional types of cut-off apparatus; Arrangements for cutting-off with a breakable closure member
    • 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
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/004—Pressure suppression
    • G21C9/008—Pressure suppression by rupture-discs or -diaphragms
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • 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
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • 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
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1744—Specific weakening point

Definitions

  • LECHEVALLIER 2 DEVICE FOR PROVIDING RAPID COMMUNICATION BETWEEN TWO RESERVQIRS AT DIFFERENT PRESSURES 2 Sheets-Sheet 1 Filed July 23, 1963 INVENTOR MA ale/cs A EC'HE VAL L w ATTORNEYS 9, 1965 M. LECHEVALLIER 3, ,61
  • the present invention relates to a device for providing rapid communication between two reservoirs at different pressures.
  • the pressure within the said intermediate chamber is made approximately equal to the mean of the pressure present in the two chambers.
  • the .two diaphragms are therefore subject to equal differential pressures.
  • a device which forms an intermediate chamber between the two reservoirs, and comprises a dished member fixed to a fluidtight diaphragm separating the intermediate chamber from the low pressure reservoir, the convex side of the dish facing the said intermediate chamber, and a striker member to shatter the said dish when the pressure in the intermediate chamber fal-ls below a predetermined value, said striker member being fixed on to a fluid-tight diaphragm separating the high pressure chamber from the intermediate chamber and facing the convex side of the dish.
  • FIGURE 1 shows a sectional view of a device according to the invention mounted between two reservoirs
  • FIGURE 2 shows a plan view of the dome employed in the embodiment of FIGURE 1, and
  • FIGURES 3a, 3b and 30 show three enlarged sectional views of the device according to the invention illustrating three successive stages in its operation.
  • FIGURE 1 illustrates a device according to the invention used as a safety device in a nuclear reactor.
  • a reactor is stopped by sending a neutronabsorbing fluid such as borium fluoride into it.
  • the safety obtained is a function of the rapidity with which the poison fluid is sent into the core of the reactor.
  • the safety device may, for instance, be triggered by a metal pellet melting as soon as the reactor reaches a certain level of neutron flux or a temperature it is not to exceed.
  • the reservoir in which the neutron-absorbing fluid is placed will hereinafter be called the storage chamber and the chamber in the core of the reactor receiving this fluid the release chamber.”
  • the assembly formed by the storage chamber and the release chamber is usually perfectly fluidtight so as to prevent the poison fluid from spreading through the reactor enclosure.
  • a fluid-tight safety enclosure 1 comprises a storage chamber 2 and a release chamber 3 between which a device to provide communication between the said two chambers is located.
  • an intermediate chamber 4 which is constituted by the central portion of a cylindrical ring 5, the inner and outer diameters of which match the inner and outer diameters, respectively, of the storage chamber 2.
  • a second cylindrical ring 6 the inner and outer diameters of which match the inner and outer diameters, respectively, of the storage chamber 2, placed up against the cylindrical ring 5, holds the device in the assembled position.
  • the two cylindrical rings 5 and 6 are fixed to the storage chamber 2 by nuts and bolts such as 7 Within its mass, the cylindrical ring 5 is provided with an L-shaped channel 8 to allow the fluid kept in the intermediate chamber 4 to flow out.
  • a tube 9 passing through the mass of the cylindrical ring 6 is located at the outer end 10 of the channel 8 in the cylindrical ring 5. This tube 9 is connected at its other end 11 to another pneumatic device 12.
  • the device according to the invention is stituted by:
  • a striker member 16 also metal, soldered or welded on to the diaphragm 13 on the side facing the intermediate chamber 4;
  • the dome 19 illustrated in FIGURE 2 is made up of two series of metal sectors, the first, triangular sectors 20 constituting the top portion of the dome 19 and the second, trapezoidal sectors 21 constituting an annular side wall portion. While all the triangular sectors 20 abut along their adjacent edges, the trapezoidal sectors 21, which are held at their bases, allow for a play of a few tenths of a millimeter towards the top. This is to allow for the shattering of the metal dome 19 in the course of the operation of the said device.
  • each trapezoidal sector 21 is provided on its short base with a head 22 serving as a seating for the triangular sectors 20, and, on its long base, with a flattened edge 23 enabling it to be easily inserted into an annular slot 24 provided for this purpose in the cylindrical crown 6.
  • the assembled dome of triangular sectors 20 are supported on the beads 22 and are pressed against each other in the center of the crown of trapezoidal sectors 21 by essentially conthe normal pressure which is exerted on the dome assembly.
  • This pressure which is exerted by the inwardly curved membrane .17 supported on the said dome 19, contributes also to maintaining the edges 23 of the trapezoidal section 21 in the slot 24.
  • the dome 19 may be assembled and mounted by first inverting the ring 6 and the diaphragm 17 in such a manner that the diaphragm 17 is convex, but is directed toward the base.
  • the sectors 20 are then assembled in the center of this membrane and the sectors 21 are mounted between the sectors 20 and the slot 24.
  • the assembly is finally inverted and mounted in place as shown in FIGURE 1.
  • the fluid-tight enclosure 1 provided with the device described above is positioned in the reactor in such a way that the release chamber 3 is located in the actual core of the reactor whereas the storage chamber 2 is placed directly above it.
  • the neutron-absorbing fluid is enclosed in the storage chamber 2 under a pressure much higher than that present in the release chamber 3.
  • a. pressure of 80 atmospheres in the storage chamber and a pressure of 1 to 2 atmospheres in the release chamber.
  • the pressure in the intermediate chamber 4 is made equal to the pressure in the storage chamber 2.
  • the dome 19 is supporting considerable pressure, whereas the diaphragm 17 resting on the said dome and the function of which is solely to provide a seal for the intermediate chamber 4, operates under good conditions.
  • the device operates in the following manner: an abrupt fall in pressure is effected in the intermediate chamber 4 so as to bring the pressure in it down .to the pressure in the release chamber 3.
  • the diaphragm 13, which is subject to a strong pressure, is deformed at this point.
  • the striker member 16 ruptures the top of the dome 19.
  • the diaphragms 13 and 17 burst when the triangular sectors 20 are forced back into the release chamber .as shown in FIGURE 3a.
  • the striker member 16 pressing on the trapezoidal sectors 21 forces them back-in their turn (FIGURE 3b) and is then itself carried into the release chamber 3 by the action of the fluid under pressure (FIGURE 30).
  • the metal dome 19 and its fluid-tight diaphragm 17 are replaced by a glass dome.
  • a safety device for providing rapid communication between a high-pressure reservoir having an outlet passageway and a low-pressure reservoir having an inlet passageway comprising:
  • a rigid but frangible dish-shaped supporting member supported at its periphery in said inlet passageway contiguous to the concave surface of said first diaphragm and in underlying relation thereto, said supporting member being convex in the direction of said intermediate chamber and comprising an annular side wall portion made up of a plurality of trapezoidal sectors and a center portion made up of a plurality of triangular sectors, said trapezoidal sectors having a bead at the inner edge thereof, the outer side edge of said triangular sectors seating on said beads forming a self-supporting dome, said supporting member being adapted to fragment under the act-ipn of a member striking the convex surface there- 0 (d) a second fluid-tight diaphragm disposed in sealing relation across said one end of said intermediate chamber to seal off communication between said intermediate chamber and said high-pressure reservoir; and
  • a striker member provided within said intermediate chamber and secured to the undersurface of said second diaphragm, said striker member being adapted for movement with said second diaphragm under the influence of a predetermined drop in pressure in said intermediate chamber to strike and fragment said dish-shaped member and permit said first diaphragm to rupture.
  • said dishshaped member is in the form of a portion of a sphere and is made of glass.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Reciprocating Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
US296994A 1962-07-31 1963-07-23 Device for providing rapid communication between two reservoirs at different pressures Expired - Lifetime US3216611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR905597A FR1338912A (fr) 1962-07-31 1962-07-31 Dispositif destiné à mettre rapidement en communication deux réservoirs soumis à des pressions différentes

Publications (1)

Publication Number Publication Date
US3216611A true US3216611A (en) 1965-11-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US296994A Expired - Lifetime US3216611A (en) 1962-07-31 1963-07-23 Device for providing rapid communication between two reservoirs at different pressures

Country Status (8)

Country Link
US (1) US3216611A (enrdf_load_stackoverflow)
BE (1) BE635656A (enrdf_load_stackoverflow)
CH (1) CH401622A (enrdf_load_stackoverflow)
ES (2) ES290396A1 (enrdf_load_stackoverflow)
FR (1) FR1338912A (enrdf_load_stackoverflow)
GB (1) GB1007506A (enrdf_load_stackoverflow)
LU (2) LU44170A1 (enrdf_load_stackoverflow)
NL (1) NL296011A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771801A (en) * 1987-02-02 1988-09-20 Halliburton Services Protective cover assembly with reverse buckling disc
US4819683A (en) * 1988-01-29 1989-04-11 Petrolite Corporation Pressure relief device
US4937019A (en) * 1987-10-01 1990-06-26 Isoworth Limited Pressure vessel
US5394980A (en) * 1987-06-30 1995-03-07 Tsai; Min H. Multicompartment mixing capsule
US5678307A (en) * 1992-01-21 1997-10-21 Bs&B Safety Systems, Inc. Method of manufacturing rupturable pressure relieving apparatus
RU2196244C1 (ru) * 2001-05-29 2003-01-10 Открытое акционерное общество "Научно-производственное объединение "Искра" Заглушка сопла ракетного двигателя
RU2267402C1 (ru) * 2004-07-30 2006-01-10 Открытое акционерное общество Научно-производственное объединение "Искра" Способ изготовления сферической заглушки с фланцем для сопла ракетного двигателя
RU2337817C2 (ru) * 2006-11-10 2008-11-10 Открытое акционерное общество Научно-производственное объединение "Искра" Способ изготовления изделий из композиционных материалов
RU2373052C1 (ru) * 2008-06-19 2009-11-20 Открытое акционерное общество Научно-производственное объединение "Искра" Способ изготовления изделий из композиционных материалов
US20140144514A1 (en) * 2012-11-29 2014-05-29 Robert Bosch Gmbh Dispensing and metering system, in particular of substances in microfluidic systems, and also method and cartridge having the dispensing and metering system
RU2788468C1 (ru) * 2021-10-27 2023-01-19 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Устройство для герметизации раструба сопла ракетного двигателя
US11965395B1 (en) * 2022-12-05 2024-04-23 Workover Solutions, Inc. Rupture disc and system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1537469A (en) * 1975-12-23 1978-12-29 Imi Kynoch Ltd Disintegrable member for controlling flow between pressure chambers
EP0010913A1 (en) * 1978-10-30 1980-05-14 ELECTROFABRICATION & ENGINEERING COMPANY LIMITED Improvements in or relating to reverse buckling disc assemblies
DE3335839A1 (de) * 1983-10-03 1985-04-18 Kernforschungsanlage Jülich GmbH, 5170 Jülich Verfahren zur absenkung der reaktivitaet und zum abschalten eines gasgekuehlten, graphitmoderierten kernreaktors und graphitelement mit abschaltsubstanz
GB2235582B (en) * 1989-08-25 1993-09-29 Long & Crawford Limited Explosion vent arrangement
US5240026A (en) * 1992-01-27 1993-08-31 Energy Transportation Group, Inc. System for control of oil leakage from damaged tanker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2387353A (en) * 1943-05-17 1945-10-23 Raymond Gwynne Safety device for pressure vessels
US2586858A (en) * 1945-12-20 1952-02-26 Specialties Dev Corp Rupturable sealing means for pressure fluids
US2788794A (en) * 1954-06-01 1957-04-16 American Cyanamid Co Gas loaded safety disks
US2889071A (en) * 1955-10-03 1959-06-02 Black Sivalls & Bryson Inc Safety pressure relief device
US3092286A (en) * 1960-11-28 1963-06-04 Duff Philip Explosive diaphragm valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2387353A (en) * 1943-05-17 1945-10-23 Raymond Gwynne Safety device for pressure vessels
US2586858A (en) * 1945-12-20 1952-02-26 Specialties Dev Corp Rupturable sealing means for pressure fluids
US2788794A (en) * 1954-06-01 1957-04-16 American Cyanamid Co Gas loaded safety disks
US2889071A (en) * 1955-10-03 1959-06-02 Black Sivalls & Bryson Inc Safety pressure relief device
US3092286A (en) * 1960-11-28 1963-06-04 Duff Philip Explosive diaphragm valve

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771801A (en) * 1987-02-02 1988-09-20 Halliburton Services Protective cover assembly with reverse buckling disc
US5394980A (en) * 1987-06-30 1995-03-07 Tsai; Min H. Multicompartment mixing capsule
US4937019A (en) * 1987-10-01 1990-06-26 Isoworth Limited Pressure vessel
US4819683A (en) * 1988-01-29 1989-04-11 Petrolite Corporation Pressure relief device
US5678307A (en) * 1992-01-21 1997-10-21 Bs&B Safety Systems, Inc. Method of manufacturing rupturable pressure relieving apparatus
RU2196244C1 (ru) * 2001-05-29 2003-01-10 Открытое акционерное общество "Научно-производственное объединение "Искра" Заглушка сопла ракетного двигателя
RU2267402C1 (ru) * 2004-07-30 2006-01-10 Открытое акционерное общество Научно-производственное объединение "Искра" Способ изготовления сферической заглушки с фланцем для сопла ракетного двигателя
RU2337817C2 (ru) * 2006-11-10 2008-11-10 Открытое акционерное общество Научно-производственное объединение "Искра" Способ изготовления изделий из композиционных материалов
RU2373052C1 (ru) * 2008-06-19 2009-11-20 Открытое акционерное общество Научно-производственное объединение "Искра" Способ изготовления изделий из композиционных материалов
US20140144514A1 (en) * 2012-11-29 2014-05-29 Robert Bosch Gmbh Dispensing and metering system, in particular of substances in microfluidic systems, and also method and cartridge having the dispensing and metering system
RU2788468C1 (ru) * 2021-10-27 2023-01-19 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Устройство для герметизации раструба сопла ракетного двигателя
US11965395B1 (en) * 2022-12-05 2024-04-23 Workover Solutions, Inc. Rupture disc and system

Also Published As

Publication number Publication date
ES290396A1 (es) 1963-08-16
CH401622A (fr) 1965-10-31
LU18452A1 (enrdf_load_stackoverflow)
GB1007506A (en) 1965-10-13
NL296011A (enrdf_load_stackoverflow) 1900-01-01
ES290383A1 (es) 1963-08-16
LU44170A1 (enrdf_load_stackoverflow) 1963-09-30
BE635656A (enrdf_load_stackoverflow) 1900-01-01
FR1338912A (fr) 1963-10-04

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