US1685866A - Safety and relief valve - Google Patents

Safety and relief valve Download PDF

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Publication number
US1685866A
US1685866A US590290A US59029022A US1685866A US 1685866 A US1685866 A US 1685866A US 590290 A US590290 A US 590290A US 59029022 A US59029022 A US 59029022A US 1685866 A US1685866 A US 1685866A
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US
United States
Prior art keywords
disc
safety
chamber
spring
relief valve
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
US590290A
Inventor
Fairfield E Raymond
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.)
Crosby Steam Gage & Valve Co
Crosby Steam Gage & Valve Comp
Original Assignee
Crosby Steam Gage & Valve Comp
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 Crosby Steam Gage & Valve Comp filed Critical Crosby Steam Gage & Valve Comp
Priority to US590290A priority Critical patent/US1685866A/en
Application granted granted Critical
Publication of US1685866A publication Critical patent/US1685866A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F16K17/10—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 with auxiliary valve for fluid operation of the main 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7738—Pop valves
    • Y10T137/7741—Pop pressure reactor in branched released path
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7738—Pop valves
    • Y10T137/7744—Adjustable choke
    • Y10T137/7745—Annular lip or baffle
    • Y10T137/7747—Screw threaded
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7754—Line flow effect assisted

Definitions

  • the 'llhis invention relates to that type ot safety or reliel valve in which the disc is so disposed that, when it lifts, the Huid under pressure escapes past the disc into a chamber, usually a spring chamber, ol which the disc forms the movable floor, or of which it is a movable part, and there accumulates and exerts a serious back pressure on the disc, thereby reducing the-litt ot' the disc andthe dislu charge from the fluid reservoir; and the ⁇ object of the invention is to prevent such accumulation olf' the Huid and to avoid the injurious effect caused thereby.
  • Figure l is a vertical, central section-of a safety valve with the disc in elevation
  • Eig. 2 is a similar fragmentary section showing a modification of the invention.
  • v l 2u vrl["he case 1 contains the throat tube 2, whereon is seated the disc 3, which is surmounted by the spring 4 operatively disposed in the spring vchamber 5; the lower portion of said spring chamber is furnished interiorly with the adjustable sleeve 6 which isin threaded engagementtherewith, the lower portion of which sleeve encircles the disc leaving a slight clearance 7 between the sleeve and the disc. so as not to interfere withthe free action of the disc.
  • v l 2u vrl["he case 1 contains the throat tube 2, whereon is seated the disc 3, which is surmounted by the spring 4 operatively disposed in the spring vchamber 5; the lower portion of said spring chamber is furnished interiorly with the adjustable sleeve 6 which isin threaded engagementtherewith, the lower
  • this object is accomplished by providing the' passage 9 1 through the wall separating the spring chamber from the discharge outlet, said passage preferably leading into the discharge outlet at an angle (as shown) adapted to secure the benefit of the eductive action of the main body ol the fluid rushing through the outlet.
  • a modilcaion is shown in Eig. 2, comprising a pipelO extending outwardly from the springchamber and then downwardly into( the discharge outlet.v i
  • 'llhel maximum-eductive action'of th'e'Huid rushing through the discharge outlet may be ⁇ secured by extending the passage 9 or pie 10 into the outlet 8 preferably in the form o a @5 nozzle 11 (lFigfQ). which nozzle. may however be omitted, if desired.
  • A' safety valve comprising la throat tube terminating in an opening, a spring operated valve disc 'normally closing the opening, a chamber above the valve disc enclosing the spring, an outlet chamber through which lluid vapor escapes upon opening ol the valve disc, and connections between the spring chamber and outlet chamber designed to permit the escape of Huid vapor from the spring chamber and reduce the pressure in the spring chamber by virtue of the eductive ellect 'ol vapor flowing through the outlet chamber.

Description

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SAFETY Am) RELIEF VALVE Filed sep-1;. 25. 1922 l all ll" lllUll'lE, @DE EUSIIUN, MASSACHUSETTS, ASME-NOE, "1D0 CEUSEW MDEAEI @AGE A6 'VALVE GtlllllEAhlY, @E EDATUE', MASSACHUSETTS, A' CUEETIN @E MAESAAETTH.
sannita n nnnrnn vanvn.
Application tled september Elfman. Serial llo. lltlgttl.
'llhis invention relates to that type ot safety or reliel valve in which the disc is so disposed that, when it lifts, the Huid under pressure escapes past the disc into a chamber, usually a spring chamber, ol which the disc forms the movable floor, or of which it is a movable part, and there accumulates and exerts a serious back pressure on the disc, thereby reducing the-litt ot' the disc andthe dislu charge from the fluid reservoir; and the` object of the invention is to prevent such accumulation olf' the Huid and to avoid the injurious effect caused thereby. rllhe invention is illustrated by the accompanying drawings, in which: Figure l is a vertical, central section-of a safety valve with the disc in elevation, and Eig. 2 is a similar fragmentary section showing a modification of the invention. v l 2u vrl["he case 1 contains the throat tube 2, whereon is seated the disc 3, which is surmounted by the spring 4 operatively disposed in the spring vchamber 5; the lower portion of said spring chamber is furnished interiorly with the adjustable sleeve 6 which isin threaded engagementtherewith, the lower portion of which sleeve encircles the disc leaving a slight clearance 7 between the sleeve and the disc. so as not to interfere withthe free action of the disc. v
lin operation, as heretolore constructed, when the'valve is attached to a fluid reservoir, the Huid fills the throat tube and, when the 'disc lifts under a predetermined pressure, while the bulk of the 'Huid escapes below the disc through the outlet, a considerable quantity ol fluid escapes past the disc into the spring chamber and there accumulates, thereby causing back pressure on the disc and seri-A ously interfering with its normal and proper l action. This back pressure occurs in a largev number of cases where the spring chamber surmounting the disc, or other chamber similarly disposed, has no outlet lor the Huid escaping into it past the disc, when the disc rises.
'.lo obviate this trouble, ll provide means for the escape of the Huid from the'spring charnber into the discharge outlet 8 for the fluid. J
As illustrated in Figure l., this object is accomplished by providing the' passage 9 1 through the wall separating the spring chamber from the discharge outlet, said passage preferably leading into the discharge outlet at an angle (as shown) adapted to secure the benefit of the eductive action of the main body ol the fluid rushing through the outlet.
A modilcaion is shown in Eig. 2, comprising a pipelO extending outwardly from the springchamber and then downwardly into( the discharge outlet.v i
'llhel maximum-eductive action'of th'e'Huid rushing through the discharge outlet may be `secured by extending the passage 9 or pie 10 into the outlet 8 preferably in the form o a @5 nozzle 11 (lFigfQ). which nozzle. may however be omitted, if desired.
A' safety valve comprising la throat tube terminating in an opening, a spring operated valve disc 'normally closing the opening, a chamber above the valve disc enclosing the spring, an outlet chamber through which lluid vapor escapes upon opening ol the valve disc, and connections between the spring chamber and outlet chamber designed to permit the escape of Huid vapor from the spring chamber and reduce the pressure in the spring chamber by virtue of the eductive ellect 'ol vapor flowing through the outlet chamber.
EAllREllElhD E. RAYM.
US590290A 1922-09-25 1922-09-25 Safety and relief valve Expired - Lifetime US1685866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US590290A US1685866A (en) 1922-09-25 1922-09-25 Safety and relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US590290A US1685866A (en) 1922-09-25 1922-09-25 Safety and relief valve

Publications (1)

Publication Number Publication Date
US1685866A true US1685866A (en) 1928-10-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US590290A Expired - Lifetime US1685866A (en) 1922-09-25 1922-09-25 Safety and relief valve

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590343A (en) * 1952-03-25 Defectively labeled and nonlabeled
US2610648A (en) * 1948-06-01 1952-09-16 Adolph F Meyer Valve apparatus
US2669252A (en) * 1950-02-21 1954-02-16 Farris Victor Wallace Safety valve
US2688980A (en) * 1949-01-13 1954-09-14 Edward Valves Inc Valve equalizer
US2839076A (en) * 1953-03-24 1958-06-17 Mueller Co Quick-opening pressure relief valve
US2880751A (en) * 1956-12-13 1959-04-07 Crosby Valve & Gage Relief valves
US3027912A (en) * 1959-09-30 1962-04-03 Crane Co Actuating means for pressure responsive vessels
US3122160A (en) * 1962-06-20 1964-02-25 Crane Co Adjustable pressure setting arrangement for pressure responsive valves
US3126909A (en) * 1964-03-31 Relief valve
US20080000531A1 (en) * 2006-06-28 2008-01-03 Honeywell International, Inc. Downstream flow sensing probe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590343A (en) * 1952-03-25 Defectively labeled and nonlabeled
US3126909A (en) * 1964-03-31 Relief valve
US2610648A (en) * 1948-06-01 1952-09-16 Adolph F Meyer Valve apparatus
US2688980A (en) * 1949-01-13 1954-09-14 Edward Valves Inc Valve equalizer
US2669252A (en) * 1950-02-21 1954-02-16 Farris Victor Wallace Safety valve
US2839076A (en) * 1953-03-24 1958-06-17 Mueller Co Quick-opening pressure relief valve
US2880751A (en) * 1956-12-13 1959-04-07 Crosby Valve & Gage Relief valves
US3027912A (en) * 1959-09-30 1962-04-03 Crane Co Actuating means for pressure responsive vessels
US3122160A (en) * 1962-06-20 1964-02-25 Crane Co Adjustable pressure setting arrangement for pressure responsive valves
US20080000531A1 (en) * 2006-06-28 2008-01-03 Honeywell International, Inc. Downstream flow sensing probe

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