EP0972151A1 - Systeme de soupape de surete de limitation de debit a points de consigne du debit de fermeture adaptables - Google Patents

Systeme de soupape de surete de limitation de debit a points de consigne du debit de fermeture adaptables

Info

Publication number
EP0972151A1
EP0972151A1 EP98913312A EP98913312A EP0972151A1 EP 0972151 A1 EP0972151 A1 EP 0972151A1 EP 98913312 A EP98913312 A EP 98913312A EP 98913312 A EP98913312 A EP 98913312A EP 0972151 A1 EP0972151 A1 EP 0972151A1
Authority
EP
European Patent Office
Prior art keywords
poppet
valve
chamber
orifice
relation
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.)
Withdrawn
Application number
EP98913312A
Other languages
German (de)
English (en)
Inventor
R. Gene Sanders
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.)
Sanders Valve Corp
Original Assignee
SANDERS VALVE Inc
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
Priority claimed from US08/995,009 external-priority patent/US6019115A/en
Application filed by SANDERS VALVE Inc filed Critical SANDERS VALVE Inc
Publication of EP0972151A1 publication Critical patent/EP0972151A1/fr
Withdrawn legal-status Critical Current

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
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded

Definitions

  • invention relates to excess flow valves which prevent the flow of fluid or gas through a port
  • valves are intended to regulate the flow of
  • valve will
  • a gas supply system comprises a bottle or utility gas line, or other high
  • pressure gas source connected directly or through a pipe, or similar gas delivery means, to a
  • the regulator unit supplies the gas at a low pressure rate to its final
  • the excess flow valve is typically placed at the low-
  • a typical excess flow valve comprises a sliding poppet inside a chamber capable of
  • a spring is often used to urge the poppet to its open position away from the opening.
  • an excess-flow check valve comprising a poppet member and a retainer member
  • orifice determines the flow area for the fluid passing through the valve.
  • the differential pressure increases.
  • the differential pressure increases.
  • Sumner patent employs a cam member which, upon rotation, adjusts the distance between its poppet member and an orifice.
  • the ability to adjust said distance is limited by
  • the preselected settings provided on the cam member i.e., lobes and flats. That is, for any
  • shut off rate determined by the cam member might be much greater
  • valve also
  • Another type of externally adjustable valve referred to as a velocity fuse for a
  • the Maldavs fuse includes a poppet valve assembly having an adjustment screw
  • the shielded body helps to divert the flow of fluid
  • the sensitivity of the valve depends on limited preset threshold
  • the present invention provides an excess flow rate valve system and method for
  • the excess flow rate valve is adjustable to actuate within a wide range of flow rates.
  • valve system is designed to shut down the flow of the fluid, vapor, or gas if the flow rate
  • the valve system is responsive
  • valve system is precisely and accurately adjustable within
  • valve system prevents the flow of the fluid or gas in the event of a break in a fuel line, hose,
  • valve or gas substantially completely, except for a minimal allowable back pressure.
  • valve can be used in
  • the preferred valve comprises a sliding poppet within a chamber which can be
  • a coiled spring is used to urge the poppet
  • the adjustment mechanism comprises a threaded member extending through the
  • the threaded member is externally
  • the cam is provided on the threaded member and can be moved laterally in relation to the
  • the spring keeps the poppet in its open position against the cam until the flow rate
  • the valve is configured to substantially limit the rotation of the
  • the top of the poppet is also provided with support arms that extend to the walls of the poppet
  • spacers can be provided to adjust
  • the threaded member can be adapted to be positioned on multiple fixed
  • the length of the poppet can also be varied
  • valve also contemplates using a tamper resistant break-
  • the plug can be used to cover the head to prevent unauthorized adjustments.
  • FIGURE 1 shows a longitudinal cross-section of an exemplary configuration of the
  • FIGURE 2 shows a longitudinal cross-section of an exemplary configuration of the
  • FIGURE 3 shows a longitudinal cross-section of an exemplary configuration of the
  • FIGURES 4a, 4b and 4c show a top view, side view and bottom view, respectively, of
  • FIGURES 5a, 5b and 5c show an end view, top view and side view, respectively, of
  • FIGURES 6a and 6b show a side view and end view, respectively, of an exemplary
  • FIGURES 7a shows a cross-section view of an exemplary configuration of a cap with
  • FIGURES 7b shows a cross-section view of an exemplary configuration of a sealing cap used in the excess flow valve of the present invention
  • FIGURES 8a and 8b show spacers of various widths that can be used in the excess flow valve of the present invention
  • FIGURE 9 shows an exemplary assembly having multiple settings with a long poppet
  • FIGURE 10 shows an exemplary assembly having multiple settings with a long
  • FIGURE 11 shows an exemplary assembly having multiple settings with a long
  • FIGURE 12 shows an exemplary assembly having multiple settings with a short
  • FIGURE 13 shows an exemplary assembly having multiple settings with a short
  • FIGURE 14 shows an exemplary assembly having multiple settings with a short
  • valve system and method to regulate the flow of fluid, vapor, or gas therethrough In the
  • the valve system comprises a single-chamber housing body 1 , as shown
  • the body is a chamber 4 with an orifice 5 at one end.
  • the orifice 5 is formed in a narrow
  • portion 7 of the housing body 1 through which fluid or gas can pass from one end 2 to the
  • the narrow portion 7 has a receiving portion 8 adjacent the wider portion 9 of the
  • the body 1 is preferably
  • each end 2 and 3 externally threaded on each end 2 and 3 so that it can be secured to a threaded pipe system
  • the body 1 has an opening or bore 10 through which a threaded member 31, as
  • multiple bores 10 can be provided, as will be discussed, to enable the location of the
  • the housing body 1 is preferably
  • a sliding poppet 11 Within the chamber 4, as shown in Figures 2 and 3, is a sliding poppet 11 and a
  • coiled spring 25 extending in the longitudinal direction in relation to the axis of the housing body 1.
  • the poppet 11 and spring 25 are preferably co-axially oriented within the
  • the spring 25 is preferably situated in the chamber 4 such that its lower end
  • the upper end 28 of the spring 25 preferably cooperates with
  • spring 25 can be any conventional type, i.e., made of metal, and can be provided with a
  • pre-calibrated tension as is known in the art.
  • the poppet 11 is generally configured to slide within the chamber 4, preferably
  • the poppet 11, shown in Figures 4a, 4b and 4c, preferably has a
  • portion 12 is adapted to slide within the orifice 5 and be positioned in relation to the
  • the poppet seat 15 extends outward at the top of the flange portion 12 and is preferably
  • fluid or gas can pass from one end 2 to the other 3.
  • the shaft portion 13 which is preferably relatively thin to reduce the overall weight of the poppet so that gravity does not
  • Ribs 24 can be provided along the shaft
  • the poppet 11 can be made either longer or shorter, to
  • the poppet top 14 has one or more support arms 19, as shown in Figures 4a-4c.
  • the support arms 19 preferably extend outward laterally to provide support for the poppet
  • the support arms 19 also brace the poppet against
  • the poppet's angled engagement surface Preferably located on the poppet top 14 is the poppet's angled engagement surface
  • the engagement surface 17 is provided along substantially the same incline as the cam's engagement surface 39, located on adjustment cam 37 shown in Figures 5a-5c.
  • the width 20 between the two support arms 19 is preferably only slightly wider than the
  • chamber or orifice can also be used.
  • the threaded member 31 is the threaded member 31.
  • the threaded member 31, as shown in Figures 6a-6b, is the threaded member 31.
  • shaft has a head 35 at one end 34 and terminates at the other end 36.
  • the terminating end 36 is inserted into the notch 29 on the side of the chamber
  • the head 35 is
  • the head 35 is preferably an alien head, but can be a screw head, hex head, or other type
  • cam 37 Positioned on the threaded member 31, as shown in Figure 3, is the cam 37.
  • cam 37 as shown in Figures 5a-5c, has a threaded bore 41 adapted for rotational
  • the cam's engagement surface 39 extends from the
  • the angle of the two surfaces 17 and 39 and the inclined plane 60 is preferably about 45
  • cam retains the movement of the poppet upward, adjusting the cam 37 in this manner sets
  • Both the poppet 11, including the poppet top 14, and cam 37, can be made of
  • DelrinTM made by Dupont. The material preferably withstands extreme changes in
  • the poppet 11 and member 31 can be
  • a sealing cap 45 is provided, as shown in Figure 7a, to seal the bore 10. It
  • cap 45 can be inserted within the bore and secured thereto to provide an airtight seal.
  • cap 45 is adapted with a cavity 47 adjacent to which the head 35 can be positioned wherein
  • the cap helps secure the threaded member 31 within the chamber, preventing the member
  • bore 49 is provided through the cap 45 so that the head 35 of the threaded member 31 can
  • a bushing 50 shown in Figure 9, is
  • the access bore 49 preferably has internal threads so that a separate break away
  • screw 51 can be inserted therein to prevent unauthorized adjustments of the threaded
  • break away screw 51 has a separate head 55, such as a screw head, alien head, hex head,
  • the head 55 is supported
  • a thin stem 56 which can be broken off after the valve is set and the screw 51 inserted.
  • Spacers 57, 59 and 61 as shown in Figures 8a and 8b, can be provided to widen
  • the spacers are preferably annular in shape to match the
  • One or more spacers can be inserted into the chamber adjacent the spring,
  • the spacers help to adjust the threshold flow rate by compressing the spring and adjusting its tension for any given travel
  • 61 can come in various widths depending on the desired Threshold Rate ranges. Any
  • system can be a multi-phase excess flow valve system.
  • valve system is similar to the valve system of the first embodiment, except that it has a
  • housing design 70 is shown to demonstrate the multi-phase excess flow valve system.
  • system may be adjusted to accommodate for insertion of the threaded member 31 in one of
  • Each position comprises a bore 10 and associated notch 29, as shown in Figures 9-
  • Each position 63, 64 and 65 is located at a
  • multiple phase design valve system can be used to achieve virtually any desired range of
  • Threshold Rates Although three positions are illustrated herein, it will be appreciated that 2, 4, 5 or more positions can similarly be provided, depending on the range of desired flow
  • valve system In its open position, the valve system regulates the flow of the fluid or gas from an
  • the cam 37 can be laterally displaced in a direction
  • engagement surface 39 is designed to slide in relation to the poppet's
  • the valve system can be set to virtually any Threshold Rate.
  • valve system may be used to regulate the flow of gas into a house
  • the maximum gas consumption rate (the rate at which all gas-
  • Rate is set to a desired level, e.g., about 10% higher than the maximum consumption rate. This is preferably done by a professional using a flowmeter. Hence, if the maximum
  • Threshold Rate is set at around 110,000 BTUs by adjusting a pre-calibrated threaded
  • valve system causing the valve system to shut down the supply of gas into the house, thereby
  • Figure 2 shows a cross-sectional view of an exemplary configuration of the excess
  • the poppet 11 is guided by the two or more guiding fins 16 and/or support arms 19.
  • the support arms 19 on the poppet top 14 ensure that the poppet slides longitudinally inside
  • the support arms 19 also help to stabilize the housing body 1 during its up and down motion.
  • the support arms 19 also help to stabilize the housing body 1 during its up and down motion.
  • poppet top 14 can cause the support arms 19 to bind with the chamber 4 wall, when setting
  • valve care should be taken to release the poppet by reversing the threaded member 31
  • the range of threshold flow rates for natural gas can be extended from between about 30,000 BTU's to about 1.5 million BTU's.
  • Assembly No. 1 The assembly shown in Figure 9 employs a standard size poppet
  • BTU's for natural gas and about 47,000 to 944,000 BTU's for liquid petroleum.
  • Assembly No. 2 The assembly shown in Figure 10 employs a standard size poppet
  • Assembly No. 3 The assembly shown in Figure 11 employs a standard size poppet
  • Assembly No. 4 The assembly shown in Figure 12 employs a shorter poppet 69
  • the operating range using the adjustment mechanism of the present invention for this assembly is about 75,000 to 980,000
  • BTU's for natural gas and about 119,000 to 1,561,000 BTU's for liquid petroleum.
  • Assembly No. 5 The assembly shown in Figure 13 employs a shorter poppet 69
  • Assembly No. 6 The assembly shown in Figure 14 employs a shorter poppet 69
  • adjustment mechanism of the present invention for this assembly is about 54,000 to 851,000
  • BTU's for natural gas and about 86,000 to 1,354,000 BTU's for liquid petroleum.
  • threshold ranges can be varied further by changing the position of the threaded member 31 .
  • the adjustment mechanism can also be adjusted, if desired.
  • Threshold Rate as in standard valves, one or more of the adjustment steps discussed above can be employed.
  • one or more spacers can be employed.
  • the multiple-phase settings can also be used to widen
  • Threshold Rates that are possible for any given size of housing body.
  • the poppet itself can be changed to adjust the travel distance of the poppet and
  • the valve is then set using the adjustment mechanism to the
  • Threshold Rate by turning the threaded member 31 to a predetermined position, i.e.,
  • the system was designed to simulate conditions
  • Threshold Rate set at approximately 64,000 BTU's for natural gas (or 50 SCFH), the valve
  • Threshold Rate was set at approximately 128,000 BTU's for
  • the valve typically shuts off when the hole is smaller, i.e., half the size as the one
  • present valve is able to detect small as well as large leaks without confusing small leaks

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Lift Valve (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

Cette invention a trait à un système de soupape de limitation de débit pourvu d'un champignon coulissant (11) dans une chambre et dans l'une des extrémités duquel a été ménagé un orifice, ce qui permet d'adapter les points de consigne du débit auquel le système se fermera. Il est possible de procéder à des réglages de l'extérieur en tournant un élément fileté traversant la soupape, ce qui amène un organe de retenue (37), enfilé dans l'élément susmentionné, à se déplacer sur une plan latéral à l'intérieur de la chambre. Ce déplacement fait qu'une surface oblique de l'organe de retenue entre en contact avec une surface du champignon de même oblique et se déplace relativement à cette dernière. Lorsque le champignon appuie contre l'organe de retenue, étant sollicité par un ressort enroulé (25), il se déplace sur un plan longitudinal à l'intérieur de la chambre, se rapprochant ou s'éloignant de l'orifice. Le fait de tourner l'élément fileté assure une course maximale au champignon et, partant, permet de régler avec précision le débit de seuil de la soupape. Il est possible d'adjoindre au système des mécanismes auxiliaires visant à accroître l'éventail des points de consigne, sans avoir à remplacer le ressort ou à modifier les dimensions de l'orifice, ces mécanismes pouvant être des intercalaires modifiant la tension du ressort et les points de consigne à phases multiples dans le logement de soupape.
EP98913312A 1997-04-01 1998-04-01 Systeme de soupape de surete de limitation de debit a points de consigne du debit de fermeture adaptables Withdrawn EP0972151A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US4259697P 1997-04-01 1997-04-01
US42596P 1997-04-01
US4745797P 1997-05-22 1997-05-22
US47457P 1997-05-22
US995009 1997-12-19
US08/995,009 US6019115A (en) 1997-12-19 1997-12-19 Safety excess flow valve system with adjustable closing flow rate settings
PCT/US1998/006274 WO1998044283A1 (fr) 1997-04-01 1998-04-01 Systeme de soupape de surete de limitation de debit a points de consigne du debit de fermeture adaptables

Publications (1)

Publication Number Publication Date
EP0972151A1 true EP0972151A1 (fr) 2000-01-19

Family

ID=27366164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98913312A Withdrawn EP0972151A1 (fr) 1997-04-01 1998-04-01 Systeme de soupape de surete de limitation de debit a points de consigne du debit de fermeture adaptables

Country Status (9)

Country Link
EP (1) EP0972151A1 (fr)
KR (1) KR20010005948A (fr)
CN (1) CN1134603C (fr)
AU (1) AU6789498A (fr)
BR (1) BR9807910A (fr)
IL (1) IL132130A0 (fr)
NZ (1) NZ500060A (fr)
TR (1) TR199903301T2 (fr)
WO (1) WO1998044283A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107183C (zh) * 1999-05-20 2003-04-30 沈锝桓 储压筒流量调节阀
CA2814015C (fr) * 2010-10-12 2019-02-26 Honda Patents & Technologies North America, Llc Systeme et procede de freinage
CN102678986A (zh) * 2012-04-27 2012-09-19 海安县百协锻锤有限公司 压差可调防爆阀
CN103322252B (zh) * 2013-01-25 2015-06-03 谭仲禧 一种中央空调系统用调节阀
US8701715B1 (en) * 2013-02-01 2014-04-22 Quick Fitting, Inc. Flow check valve assembly and method
CN105003696B (zh) * 2015-07-20 2017-03-22 林建州 具有压力缓冲功能的压力调节活塞
DE102016006887B4 (de) 2016-06-03 2025-05-28 Fresenius Medical Care Deutschland Gmbh Konstantflussdrossel und Dialysegerät
GB2567424B (en) * 2017-10-05 2020-08-26 Delphi Automotive Systems Lux Fluid pressure regulator
CN109084062B (zh) * 2018-09-06 2020-05-12 武汉新芯集成电路制造有限公司 一种用于液体管路的稳压阀
CN112664692A (zh) * 2021-01-12 2021-04-16 梁众福 一种具有多级调压功能的溢流阀
CN114545220A (zh) * 2022-01-18 2022-05-27 郑州赛奥电子股份有限公司 一种瓦斯继电器接点容量寿命试验台

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668555A (en) * 1951-04-07 1954-02-09 Albert F Bartolat Excess flow cutoff valve with adjustable valve seat
DE1026591B (de) * 1956-09-10 1958-03-20 Zulauf & Cie K G Rohrbruchventil fuer Rohr- und Schlauchleitungen
BE677960A (fr) * 1966-03-16 1966-09-01
US3807442A (en) 1972-03-08 1974-04-30 Fisher Controls Co Excess flow check valve with variable closing flow rate
US4093001A (en) * 1976-03-29 1978-06-06 Ab Kalle-Regulatorer Excess flow valve
SE414822B (sv) * 1978-11-22 1980-08-18 Lissmyr Per Olof Anordning vid ventil med styrd oppningsanordning
US4383549A (en) 1981-04-22 1983-05-17 Imperial Clevite Inc. Adjustable velocity fuse for hydraulic line
JP2663226B2 (ja) * 1992-08-03 1997-10-15 日本フローセル製造株式会社 定流量弁

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9844283A1 *

Also Published As

Publication number Publication date
TR199903301T2 (xx) 2000-04-21
IL132130A0 (en) 2001-03-19
NZ500060A (en) 2002-02-01
CN1251642A (zh) 2000-04-26
WO1998044283A1 (fr) 1998-10-08
BR9807910A (pt) 2000-02-22
KR20010005948A (ko) 2001-01-15
CN1134603C (zh) 2004-01-14
AU6789498A (en) 1998-10-22

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