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WO2011055371A1 - Soupape à pointeau de montage facile - Google Patents

Soupape à pointeau de montage facile Download PDF

Info

Publication number
WO2011055371A1
WO2011055371A1 PCT/IL2010/000926 IL2010000926W WO2011055371A1 WO 2011055371 A1 WO2011055371 A1 WO 2011055371A1 IL 2010000926 W IL2010000926 W IL 2010000926W WO 2011055371 A1 WO2011055371 A1 WO 2011055371A1
Authority
WO
WIPO (PCT)
Prior art keywords
bonnet
panel
bore
stem
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.)
Ceased
Application number
PCT/IL2010/000926
Other languages
English (en)
Inventor
Felix Shestatski
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.)
Ham Let Israel Canada Ltd
Original Assignee
Ham Let Israel Canada Ltd
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 Ham Let Israel Canada Ltd filed Critical Ham Let Israel Canada Ltd
Publication of WO2011055371A1 publication Critical patent/WO2011055371A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members

Definitions

  • the present invention generally relates to valves, and more specifically, to a needle valve which can be easily mounted to a panel without disassembling its main components.
  • valves A known type of valves is one in which a valve member, or needle, is mounted on a valve body for axial movement along a valve closure axis into, and out of, a valve seat cavity. Flow passages, opening into the valve seat cavity, are formed in the valve body so that the valve can be closed by inserting the needle into the valve seat cavity and opened by withdrawing the needle from the valve seat cavity.
  • US patent 3,761,052 discloses a flow plugger valve particularly suited for abrasive or corrosive fluids.
  • the valve comprises a body with a generally conically shaped valve chamber and a seat insert removably positioned in the chamber.
  • a bonnet member is removably connected to the body and has a cylindrical valve plug receiving opening axially aligned with the seat includes a first cylindrical section slidingly received in the opening an a conically shaped inner end portion adapted to enter and sealingly engage the seat insert.
  • An actuating stem is threaded into the bonnet in axial alignment with the opening.
  • the inner end of the stem is releasably and rotatably connected to the cylindrical end of the plug so that upon rotation of the stem, the plug can be moved toward and away from the seat.
  • Seal ring means are carried by the cylindrical portion of the plug for sealingly engaging the walls of the opening.
  • the seal ring means prevents fluids from passing from the valve chamber into the bonnet and seal both the stem-plug connection and the stem threads from the fluid.
  • the seal ring means comprise an assembly of three ring members including a resilient O-ring positioned between two resilient washers. The inner washer acts as a wiping ring to clean the bore of abrasive particles and prevent wear on the O-ring.
  • US patent 6,820,857 discloses a needle valve having a soft tip adapted for sealing an annular valve seat of a body port.
  • the soft tip may be defined as two dissimilar circular rod sections of ductile plastic with the larger diameter having a conical taper. The soft tip is pressed into a mating hole in the metal portion of stem up to its annular seat. A thin metal tubular section of the metal stem is cold formed over the soft tip to retain it in place.
  • the metal retainer secures the soft tip in the axial direction and limits the radial expansion of the soft tip while it is cold formed over the annular valve seat of the body port.
  • the metal retainer also limits the axial movement of the stem to its maximum operating position. Under high axial forces, the soft tip does not rotate relative to the valve seat. A resilient high-pressure seal is achieved with this arrangement.
  • This valve is also not planned to be mountable to a panel.
  • the main problem with the existing needle valves is the also when they provide the ability to be mounted to a panel by a panel nut, a packing nut of the needle valve has to be removed.
  • the removal of the packing nut influences of the packing material located within the valve, and as a result of that the valve has to be packed again by the manufacturer. If the user removes the packing nut by himself, the guarantee of the valve is automatically lost.
  • the present invention discloses a needle valve.
  • the needle valve comprises:
  • a body having a laterally inwardly extending cylindrical body bore which defines a valve chamber, inlet and outlet flow passages connected to a middle portion of the body bore and extending from the exterior of the body inwardly to the valve chamber.
  • An actuating stem threaded within the bonnet bore, axially aligned with the bonnet bore and the body bore.
  • the stem having an end fitted to be received within the middle portion of the body bore.
  • the stem is rotatable within the bonnet bore and the body bore to close the passage of flow between the inlet and outlet flow passages within the valve chamber.
  • the packing bolt is having an outer diameter which is smaller than the inner diameter of the at least two panel nuts.
  • the present invention also discloses a needle valve, wherein the at least two panel nuts are: ( ) a distance adjustment nut; and, (z ' z) a strengthening nut.
  • the distance adjustment nut is adapted to adjust the distance between the inlet and outlet flow passages and the panel.
  • the strengthening nut is adapted to strengthen the connection between the valve and the panel when the panel is between the distance adjustment nut and the strengthening nut.
  • the present invention also discloses a needle valve, wherein the packing bolt is adapted to compress a packing material located between the packing bolt, the bonnet and the stem.
  • the present invention also discloses a needle valve, wherein the stem further comprises a handle adapted to rotate the stem.
  • the present invention also discloses a needle valve, wherein the handle is attached to the stem by screwing means.
  • the present invention discloses a method for mounting a needle valve to a panel.
  • the method comprises steps of:
  • the needle valve comprises:
  • a body having a laterally inwardly extending cylindrical body bore which defines a valve chamber, inlet and outlet flow passages connected to a middle portion of the body bore and extending from the exterior of the body inwardly to the valve chamber.
  • a bonnet threaded within the outer end of the body bore, the bonnet having a cylindrical bonnet bore axially aligned with the body bore.
  • An actuating stem threaded within the bonnet bore, axially aligned with the bonnet bore and the body bore. The stem having an end fitted to be received within the middle portion of the body bore.
  • the stem is rotatable within the bonnet bore and the body bore to close the passage of flow between the inlet and outlet flow passages within the valve chamber, (z ' v) A packing bolt threaded within the inner side of the bonnet bore, (v) At least two panel nuts threaded on the outer diameter of the bonnet.
  • the at least two panel nuts are: a distance adjustment nut; and, a strengthening nut.
  • the distance adjustment nut is adapted to adjust the distance between the inlet and outlet flow passages and the panel.
  • the strengthening nut is adapted to strengthen the connection between the valve and the panel when the panel is between the distance adjustment nut and the strengthening nut.
  • the packing bolt is having an outer diameter which is smaller than the inner diameter of the at least two panel nuts.
  • the method for mounting the needle valve to the panel is performed without removal of the packing bolt.
  • 'needle valve' refers hereinafter to a valve that is opened by turning a stem with an end fitted to be received within the middle portion of the body bore inside the valve. When the valve is closed by said fitted end, flow inside the valve is blocked, and vice versa.
  • 'diameter of a packing bolt' refers to a measure of a diameter of a circle which inscribes the outer perimeter of the head of a packing bolt.
  • FIG. 1 is a schematic illustration of a cross-section of the needle valve.
  • FIG. 2 is a schematic illustration of a right side point of view of the needle valve.
  • FIG. 3a-3c is a schematic illustration of the needle valve and the method of mounting the valve to a panel.
  • FIG. 4a-4b is a schematic illustration of the needle valve from the left and the right points of view, respectively.
  • FIG. 1 schematically illustrates a cross-section of the needle valve 100 according to a preferred embodiment.
  • the main element of needle valve 100 is body 10. This element has a laterally inwardly extending cylindrical body bore 12 which defines a valve chamber.
  • middle portion 14 of body bore 12 has a truncated conical configuration. This special configuration allows a continuous change of fluid pressure while the flow of fluid in the valve chamber is blocked or released.
  • Bonnet 20 threaded within the outer end of body bore 12.
  • the bonnet comprises a cylindrical bonnet bore 22 which is axially aligned with body bore 12.
  • actuating stem 30 is threaded within bonnet bore 22 and is axially aligned with bonnet bore 22 and body bore 12.
  • stem 30 has a fitted end 32 (e.g., conical end) fitted to be received within middle portion 14 of body bore 12.
  • fitted end 32 e.g., conical end
  • Stem 30 is adapted to be rotatable within bonnet bore 22 and body bore 12 to close the passage of flow between inlet and outlet flow passages 16 and 17.
  • stem 30 comprises handle 21 which is adapted to rotate the stem.
  • Handle 21 is removably affixed to the outer end of stem 30 by a socket head machine screw 22.
  • Needle valve 100 comprises packing bolt 35 threaded within the inner side of bonnet bore 22. Packing bolt 35 is adapted to compress a packing material 39 located between packing bolt 35, bonnet 20 and stem 30.
  • Packing material 39 is adapted to isolate the valve chamber and the fluid located within the valve chamber from the external environment.
  • packing material 39 is made from materials selected from: plastic material, PTFE, Carbon Fiber or any combination thereof.
  • the maximum thickness of the panel is about 5 mm.
  • Another important elements of the present invention are the at least two panel nuts (41, 42) which are adapted to mount the needle valve to a panel (not shown).
  • needle valve 100 comprises two panel nuts 41 and 42 threaded on the outer diameter of bonnet 20.
  • the first panel nut 41 is a distance adjustment nut 41 adapted to adjust to distance H between inlet and outlet flow passages 16 and 17 and the panel to which needle valve 100 is mounted.
  • the second panel nut 42 is a strengthening nut which is adapted to strengthen the connection between needle valve 100 and the panel.
  • packing bolt 35 An important property of packing bolt 35 is its outer diameter which is smaller than the inner diameter of two panel nuts 41 and 42. This property allows mounting of the needle valve to a panel without the need to remove packing bolt 35.
  • the panel to which needle valve 100 is mounted is adapted to be located between distance adjustment nut 41 and strengthening nut 42.
  • the special structure of needle valve 100 allows it to be mounted to a panel without any requirements to remove the packing bolt 35. Furthermore, it is the main novel and non- obvious feature of the needle valve of the present invention.
  • Needle valve 100 can be easily mounted to a panel because the inner diameter of the panel nuts 41 and 42 is larger than the outer diameter of the packing bold (D2>D1). Therefore, panel nuts 41 and 42 can be removed in the process of mounting of needle valve 100 without the need to remove packing bolt 35.
  • the needle valve of the present invention has a few benefits which are:
  • Time saving significantly reduces mounting time due to simplicity of assembly process.
  • the needle valve of the present invention can be disassembled for cleaning requirements.
  • needle valve 100 also comprises safety pin 55 which is insertable into body 10 such that rotation of bonnet 20 is prevented.
  • Safety pin 55 is very important for prevention of an undesired disassemble of the needle valve.
  • needle valve 100 is made of stainless steel 316, and the fluid in said needle valve can be liquid or gas.
  • inlet and outlet flow passages 16 and 17 are characterized by female threads formed in a counterbore. These flow passages are adapted to couple the needle valve to tubing (e.g., pipe lines).
  • tubing e.g., pipe lines.
  • a high pressure fluid pipe line may be connected to inlet flow passage 16
  • a low pressure fluid pipe line may be connected to outlet flow passage 17.
  • stem 30 When the valve is closed, by screwing stem 30 down until end 32 is pressed firmly against middle portion 14 of body bore 12, no fluid will flow through the valve.
  • stem 30 is moved upward to the limit of its travel, the valve is fully open and fluid may flow through the valve, between flow inlet and outlet flow passages 16 and 17, to its full capacity volume. By opening the valve, different flowing degrees may be permitted to flow through the valve at various rates.
  • the valve of the present invention is designed to stand a fluid pressure of up to 10000 psi (690 bar), and a temperature of 600°C (1112°F).
  • FIG. 2 where schematically illustrated needle valve 100 from a right side point of view.
  • bonnet 20 body 10
  • stem 30 outlet flow passage 17, handle 21, socket head machine screw 22, packing bolt 35, panel nuts 41 and 42.
  • FIG. 3a-3c where schematically illustrated needle valve 100 and the method of mounting said valve to panel 70.
  • FIG. 3a illustrated first two steps of the mounting.
  • handle 21 is removed from stem 30 following removal of socket head machine screw 22.
  • the strengthening nut 42 is threadably removed from bonnet 20.
  • the strengthening nut 42 there is no need to remove the packing bolt 35 of the valve, and as mentioned above, this is one of the main novel features of the present invention.
  • FIG. 3b illustrates the two additional steps of the mounting procedure.
  • the distance between inlet and outlet flow passages 16 (not shown) and 17 and distance adjustment nut 41 is adjusted by threading distance adjustment nut 41 on bonnet 20.
  • bonnet 20 of needle valve 100 is inserted into a predetermined hole in panel 70 so that panel 70 is in contact with distance adjustment nut 41.
  • FIG. 3c illustrates the last two steps of the mounting procedure.
  • strengthening nut 42 is threaded back on bonnet 20 so that panel 70 is adjusted between distance adjustment nut 41 and strengthening nut 42.
  • handle 21 is connected back to stem 30.
  • FIG. 4a Additional figures of needle valve 100 are illustrated in FIG. 4a and FIG. 4b.
  • FIG. 4a schematically illustrated needle valve 100 from a left side point of view
  • FIG. 4b schematically illustrated needle valve 100 from a right side point of view.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

La présente invention porte sur une soupape à pointeau (100) qui comprend : un corps (10) comportant un trou (12) qui définit une chambre de soupape, des passages d'écoulement d'entrée (16) et de sortie (17); un chapeau (20) fileté à l'intérieur de l'extrémité externe du trou du corps; une tige d'actionnement (30) filetée à l'intérieur du trou (22) du chapeau. La tige a une extrémité qui s'adapte pour être reçue à l'intérieur de la partie centrale du trou du corps. La tige est apte à être en rotation à l'intérieur du trou du chapeau et du trou du corps pour fermer le passage d'écoulement entre les passages d'écoulement d'entrée et de sortie à l'intérieur de la chambre de soupape. La soupape à pointeau selon l'invention comprend en outre un boulon de garniture (35) fileté à l'intérieur du côté interne du trou du chapeau, ainsi qu'au moins deux écrous de panneau (41, 42) filetés sur le diamètre externe du chapeau.
PCT/IL2010/000926 2009-11-08 2010-11-08 Soupape à pointeau de montage facile Ceased WO2011055371A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25917509P 2009-11-08 2009-11-08
US61/259,175 2009-11-08

Publications (1)

Publication Number Publication Date
WO2011055371A1 true WO2011055371A1 (fr) 2011-05-12

Family

ID=43706781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2010/000926 Ceased WO2011055371A1 (fr) 2009-11-08 2010-11-08 Soupape à pointeau de montage facile

Country Status (1)

Country Link
WO (1) WO2011055371A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103644306A (zh) * 2013-11-18 2014-03-19 江苏华太电力仪表有限公司 一种灶具的调节阀
CN104265909A (zh) * 2014-09-25 2015-01-07 江苏华太电力仪表有限公司 一种新型针型截止阀
CN104315217A (zh) * 2014-09-25 2015-01-28 江苏华太电力仪表有限公司 一种具有极高安全性能的截止阀
CN104390014A (zh) * 2014-10-28 2015-03-04 江苏华太电力仪表有限公司 一种新型高效的针型截止阀
CN104315217B (zh) * 2014-09-25 2017-01-04 江苏华太电力仪表有限公司 一种具有极高安全性能的截止阀
CN110242780A (zh) * 2019-07-11 2019-09-17 沅亨流体科技（昆山）有限公司 一种高压针阀快速安装结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761052A (en) 1972-02-07 1973-09-25 Whitney Res Tool Co Flow plugger valve
JPS6212051U (fr) * 1985-07-05 1987-01-24
EP0911556A1 (fr) * 1997-10-23 1999-04-28 Hoke Incorporated Soupape de dosage
US6820857B1 (en) 2002-11-07 2004-11-23 Noshok, Inc. Needle valve with soft tip stem
EP1553337A1 (fr) * 2002-07-09 2005-07-13 Fujikin Incorporated Regulateur de fluides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761052A (en) 1972-02-07 1973-09-25 Whitney Res Tool Co Flow plugger valve
JPS6212051U (fr) * 1985-07-05 1987-01-24
EP0911556A1 (fr) * 1997-10-23 1999-04-28 Hoke Incorporated Soupape de dosage
EP1553337A1 (fr) * 2002-07-09 2005-07-13 Fujikin Incorporated Regulateur de fluides
US6820857B1 (en) 2002-11-07 2004-11-23 Noshok, Inc. Needle valve with soft tip stem

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103644306A (zh) * 2013-11-18 2014-03-19 江苏华太电力仪表有限公司 一种灶具的调节阀
CN103644306B (zh) * 2013-11-18 2016-08-17 江苏华太电力仪表有限公司 一种灶具的调节阀
CN104265909A (zh) * 2014-09-25 2015-01-07 江苏华太电力仪表有限公司 一种新型针型截止阀
CN104315217A (zh) * 2014-09-25 2015-01-28 江苏华太电力仪表有限公司 一种具有极高安全性能的截止阀
CN104315217B (zh) * 2014-09-25 2017-01-04 江苏华太电力仪表有限公司 一种具有极高安全性能的截止阀
CN104390014A (zh) * 2014-10-28 2015-03-04 江苏华太电力仪表有限公司 一种新型高效的针型截止阀
CN110242780A (zh) * 2019-07-11 2019-09-17 沅亨流体科技（昆山）有限公司 一种高压针阀快速安装结构

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