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WO2018053662A1 - Vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique - Google Patents

Vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique Download PDF

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Publication number
WO2018053662A1
WO2018053662A1 PCT/CN2016/000532 CN2016000532W WO2018053662A1 WO 2018053662 A1 WO2018053662 A1 WO 2018053662A1 CN 2016000532 W CN2016000532 W CN 2016000532W WO 2018053662 A1 WO2018053662 A1 WO 2018053662A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
bracket
supercritical
sealing ball
nut
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/CN2016/000532
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English (en)
Chinese (zh)
Inventor
沈静静
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/CN2016/000532 priority Critical patent/WO2018053662A1/fr
Publication of WO2018053662A1 publication Critical patent/WO2018053662A1/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
    • F16K1/14—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 with ball-shaped valve 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube

Definitions

  • the utility model relates to the field of a shut-off valve, in particular to a supercritical small-diameter bellows spherical seal forged cut-off valve. Background technique
  • the bellows check valve has a reasonable sealing structure and corrosion resistance, long service life, less maintenance, and lower operating costs.
  • the rugged, bellows seal design ensures zero leakage of the stem and provides maintenance-free conditions.
  • the valve opening and closing torque is small, reducing labor intensity
  • the outer seal of the valve is sealed with a bellows seal and a graphite and stainless steel ring.
  • the seal is reliable and can be used without long-term replacement. Strictly adopt advanced foreign standards in design and manufacture.
  • the corrugated tube spherical seal forged cut-off valve has beautiful appearance, and the valve passage has a smooth flow line, which reduces the flow resistance coefficient of the valve, and is a kind of energy-saving product with high quality.
  • the utility model provides a supercritical small-diameter bellows spherical seal forged cut-off valve, which is cleverly designed and convenient to use, and solves the technical problem that the valve has a short service life and improves the valve use temperature, and satisfies the working condition.
  • valve stem and the sealing ball are integrally formed.
  • the inlet and the outlet of the valve body respectively have a tube receiving and bending welding ring groove.
  • the sealing ring is a hard seal and is formed by F316 stainless steel.
  • the threshold seat and the sealing surface of the sealing ball are welded with a layer of STL cemented carbide.
  • the two sides of the pressure plate are fixed on both sides of the bracket by joint bolts, cylindrical pins and nuts, and the lower end of the joint bolt is fixed on the bracket through the round pin.
  • the upper end of the joint bolt is inserted through the pressure plate and locked by a nut.
  • the advantage of the utility model is that the structure is different: the original valve stem is separated from the valve flap and is now integral.
  • the original valve flap is a tapered seal. It is now spherically sealed and automatically centered. It is not easy to leak.
  • Operating temperature Originally 350 degrees or less, it is now 600 degrees.
  • Use pressure Original 600LB or less, now 1500LB.
  • the valve stem is driven by a small pitch thread to achieve a small amount of flow adjustment.
  • Seal Original soft seal (medium head gasket), now hard seal (F316 stainless steel).
  • Figure 1 is a schematic view of the present invention.
  • valve body 1 sealing ball 2, sealing ring 3, valve stem 5, bellows 6, valve cover 19, packing pad 18, packing 8, compression sleeve 10.
  • the pressure plate 12, the bracket 7, the valve stem nut 14, the hand wheel 15, the sealing ball 2 is arranged in the middle of the valve body 1, the valve seat is designed between the sealing ball 2 and the valve body 1, and the upper end of the sealing ball 2 is connected with the wide rod 5,
  • the upper end of the valve body 1 is provided with a valve cover 19, a sealing ring 3 is arranged between the valve cover 19 and the valve body 1, the upper end of the valve cover 19 is connected with the bracket 7, and a bellows 6 is arranged between the valve stem 5 and the valve cover 19, and the bracket 7 is provided.
  • a packing pad 18 and a packing 8 are sequentially arranged with the valve rod 5, and the packing 8 is pressed against the packing pad 18.
  • the packing 8 is pressed with a pressing sleeve 10, and the upper end of the pressing sleeve 10 is pressed with a pressing plate 12, and the pressing plate 12 is fixed on both sides of the supporting plate 12
  • the valve stem 5 is provided with a valve stem nut 14 at the upper end, and the valve stem 14 is provided with a hand wheel 15, and the hand wheel 15 is locked to the upper end of the valve stem nut 14 by a lock nut 16.
  • the valve stem 5 and the sealing ball 2 are integrally formed.
  • the inlet and the outlet of the valve body 1 respectively have a tube receiving and bending ring groove 4.
  • the seal ring 3 is a hard seal and is formed by F316 stainless steel.
  • valve seat and the sealing surface of the sealing ball 2 are welded with a layer of STL cemented carbide 17.
  • the two sides of the pressure plate 12 are fixed on the two sides of the bracket 7 by a joint bolt 11 , a cylindrical pin 9 and a nut 13 .
  • the lower end of the joint bolt 11 is fixed on the bracket 7 through a cylindrical pin 9 , and the upper end of the joint bolt 11 penetrates the pressure plate 12 . Then lock through the aunt 13 .
  • the pipe body When the utility model is used, the pipe body is provided with a pipe bearing curved welding ring groove 4 on both sides of the valve body to facilitate the welding connection after the pipe is inserted, the rotating hand wheel is used to raise the valve stem, and at the same time, the sealing ball is raised, and the valve stem is driven by a small pitch thread. It can realize the slight adjustment of the flow rate.
  • the sealing ball is a spherical seal, which is automatically centered and is not easy to leak.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

La présente invention concerne une vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique. Ladite vanne comprend : un corps de vanne (1) ; une bille d'étanchéité (2) ; une bague d'étanchéité (3) ; une tige de vanne (5) ; un tuyau ondulé (6) ; un couvercle de vanne (19) ; un tampon d'élément de remplissage (18) ; un élément de remplissage (8) ; un manchon de pression (10) ; une plaque de pression (12) ; un support (7) ; un écrou de tige de vanne (14) ; et un volant de manœuvre (15). La bille d'étanchéité (2) est disposée au milieu du corps de vanne (1). Un siège de vanne est formé entre la bille d'étanchéité (2) et le corps de vanne (1). L'extrémité supérieure de la bille d'étanchéité (2) est reliée à la tige de vanne (5). Le couvercle de vanne (19) est monté sur l'extrémité supérieure du corps de vanne (1). La bague d'étanchéité (3) est montée entre le couvercle de vanne (19) et le corps de vanne (1). L'extrémité supérieure du couvercle de vanne (19) est reliée au support (7). Le tuyau ondulé (6) est monté entre la tige de vanne (5) et le couvercle de vanne (19). Le tampon d'élément de remplissage (18) et l'élément de remplissage (8) sont à leur tour disposés entre le support (7) et la tige de vanne (5). Le tampon d'élément de remplissage (18) est comprimé par l'élément de remplissage (8). L'élément de remplissage (8) est comprimé par le manchon de pression (10). L'extrémité supérieure du manchon de pression (10) est comprimée par la plaque de pression (12). Deux côtés de la plaque de pression (12) sont fixés sur deux côtés du support (7). L'écrou de tige de vanne (14) est monté sur l'extrémité supérieure de la tige de vanne (5). Le volant de manœuvre (15) est monté sur l'écrou de tige de vanne (14). Le volant de manœuvre (15) est verrouillé sur l'extrémité supérieure de l'écrou de tige de vanne (14) au moyen d'un écrou de verrouillage (16). La vanne d'arrêt d'après la présente invention est de conception ingénieuse. De plus, elle est pratique à utiliser et règle les problèmes techniques de la courte durée de vie des vannes et de l'augmentation des températures de fonctionnement des vannes. La vanne d'arrêt d'après la présente invention est donc adaptée aux conditions de fonctionnement.
PCT/CN2016/000532 2016-09-22 2016-09-22 Vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique Ceased WO2018053662A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/000532 WO2018053662A1 (fr) 2016-09-22 2016-09-22 Vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/000532 WO2018053662A1 (fr) 2016-09-22 2016-09-22 Vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique

Publications (1)

Publication Number Publication Date
WO2018053662A1 true WO2018053662A1 (fr) 2018-03-29

Family

ID=61689294

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/000532 Ceased WO2018053662A1 (fr) 2016-09-22 2016-09-22 Vanne d'arrêt forgée à élément d'étanchéité sphérique pour tuyau ondulé de petit diamètre en milieu supercritique

Country Status (1)

Country Link
WO (1) WO2018053662A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113324041A (zh) * 2021-05-28 2021-08-31 中国华能集团清洁能源技术研究院有限公司 一种适合超高温度蒸汽参数的阀门结构及制作方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911412A (en) * 1989-05-19 1990-03-27 Nupro Company Valves with improved actuators
CN2317375Y (zh) * 1997-10-20 1999-05-05 吕海常 中高压波纹管截止阀
CN1310305A (zh) * 2000-01-21 2001-08-29 昭和电工株式会社 卤素腐蚀性气体阀及其制造方法
WO2008011057A2 (fr) * 2006-07-18 2008-01-24 Nea Electronics, Inc. Élément de vanne d'isolement non-pyrotechnique
CN203614767U (zh) * 2013-12-27 2014-05-28 浙江科正阀门有限公司 波纹管锻钢阀门
CN204647346U (zh) * 2015-05-13 2015-09-16 南通国电电站阀门有限公司 手动无旋转波纹管锻造焊端截止节流阀
CN205639641U (zh) * 2016-05-19 2016-10-12 南通国电电站阀门股份有限公司 超临界小口径波纹管球面密封锻造截止阀

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911412A (en) * 1989-05-19 1990-03-27 Nupro Company Valves with improved actuators
CN2317375Y (zh) * 1997-10-20 1999-05-05 吕海常 中高压波纹管截止阀
CN1310305A (zh) * 2000-01-21 2001-08-29 昭和电工株式会社 卤素腐蚀性气体阀及其制造方法
WO2008011057A2 (fr) * 2006-07-18 2008-01-24 Nea Electronics, Inc. Élément de vanne d'isolement non-pyrotechnique
CN203614767U (zh) * 2013-12-27 2014-05-28 浙江科正阀门有限公司 波纹管锻钢阀门
CN204647346U (zh) * 2015-05-13 2015-09-16 南通国电电站阀门有限公司 手动无旋转波纹管锻造焊端截止节流阀
CN205639641U (zh) * 2016-05-19 2016-10-12 南通国电电站阀门股份有限公司 超临界小口径波纹管球面密封锻造截止阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113324041A (zh) * 2021-05-28 2021-08-31 中国华能集团清洁能源技术研究院有限公司 一种适合超高温度蒸汽参数的阀门结构及制作方法

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