WO2020143195A1 - Vanne d'arrêt entièrement chemisée de plastique fluoré anti-particules hautement résistante à la corrosion - Google Patents

Vanne d'arrêt entièrement chemisée de plastique fluoré anti-particules hautement résistante à la corrosion Download PDF

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Publication number
WO2020143195A1
WO2020143195A1 PCT/CN2019/094195 CN2019094195W WO2020143195A1 WO 2020143195 A1 WO2020143195 A1 WO 2020143195A1 CN 2019094195 W CN2019094195 W CN 2019094195W WO 2020143195 A1 WO2020143195 A1 WO 2020143195A1
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WO
WIPO (PCT)
Prior art keywords
valve
resistant
particle
strong
boss
Prior art date
Application number
PCT/CN2019/094195
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English (en)
Chinese (zh)
Inventor
毛金根
毛春龙
陈善俊
Original Assignee
江苏金晟元特种阀门股份有限公司
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
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Application filed by 江苏金晟元特种阀门股份有限公司 filed Critical 江苏金晟元特种阀门股份有限公司
Publication of WO2020143195A1 publication Critical patent/WO2020143195A1/fr

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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
    • 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
    • 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
    • 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
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

Definitions

  • the invention relates to the technical field of valve design and production.
  • the performance of this valve is unstable, the sealing effect is not good, the sealing surface is easy to be crushed, and it is easy to leak;
  • the corrosion resistance is poor, easy to leak, the lining layer is easy to bulge and fall off, after the lining layer is damaged, the valve body and the bonnet base body are easily corroded and perforated, and the damage of the lining layer leads to
  • the overall service life of the valve is short, which cannot meet the special requirements for long-term effective delivery of the medium. Once the toxic medium leaks, it will bring great harm to the surrounding environment and personal safety.
  • the purpose of the present invention is to provide a particle-lined fluoroplastic fully-lined globe valve with strong corrosion resistance that can overcome the defects of the prior art.
  • the invention includes a valve body provided with an inlet and an outlet, a valve cover connected to the valve body, a valve seat is provided in the valve body, a valve flap is provided on the valve seat, and a valve stem is provided on the upper end of the valve flap.
  • the valve stem extends out of the valve cover, and a dynamic sealing structure is provided between the valve stem and the valve cover, a transmission nut is provided on the valve cover, a transmission screw is cooperatively arranged in the transmission nut, and a hand wheel is connected to one end of the transmission screw;
  • a guide block for connecting the drive screw and the valve rod is provided between the other end of the drive screw and the end of the valve rod extending from the valve cover.
  • the transmission screw rod and the valve rod are arranged separately, and the two are connected by a guide block.
  • the connection is floating, and the valve rod only performs the lifting movement and does not perform the rotary movement, so that the valve flap sealing surface and the valve
  • the body sealing surface has no adhesion and wear, and the sealing performance is good; at the same time, the wear between the valve stem and the packing is also reduced to ensure that the medium does not leak from the valve stem.
  • the specific floating connection structure is: at the end of the transmission screw far away from the hand wheel, a first concave neck and a first boss are sequentially provided along the axial direction of the transmission screw, and at the end of the valve stem away from the valve flap
  • the axial direction of the valve stem is provided with a second concave neck and a second boss in sequence, the first boss and the second boss are arranged oppositely, the guide block is wrapped around the first concave neck, the first boss, the second Outside the concave neck and the second boss, a concave-convex curved surface that cooperates with the first concave neck, the first boss, the second concave neck, and the second boss is provided on the inner surface of the guide block.
  • the two bosses are clamped by two guide blocks to form a floating connection transmission mechanism, which reliably ensures that the valve is easy to open and close, the transmission screw torque is small, and the axial closing valve pressure is in place, which makes the sealing performance stable, safe and reliable.
  • An inner bushing is arranged in the valve body, and the inner bushings are connected by a dovetail groove provided on the inner surface of the valve body.
  • An outer bushing is arranged outside the valve flap and the valve stem, and the outer bushings are connected by dovetail grooves respectively provided on the outer surfaces of the valve flap and the valve stem.
  • a valve cover bush is arranged outside the valve cover facing the valve body, and the valve cover bush is connected by a dovetail groove provided on an inner surface of the valve cover.
  • the invention adopts a dovetail groove so that each bush can be well connected to the corresponding metal casting, and it is not easy to fall off during use, effectively forming all the overcurrent parts into a strong corrosion-resistant protective layer to ensure the corrosive medium and the parts matrix Completely separated from corrosion. At the same time, it also guarantees that the sealing surface of the connection between the valve and the pipeline is corrosion-proof, leak-free, safe and reliable.
  • a through hole is provided on the valve disc, the axial direction of the through hole is parallel to the axial direction of the valve stem, and the outer bush is connected with the outer bush in the through hole Liner inside the hole.
  • the outer bushing surface of the valve flap facing the valve cover is an inner and outer annular bosses arranged concentrically in the axial direction of the valve stem, and the height of the outer annular boss is high The height of the inner annular boss.
  • the outer ring boss and the valve cover form a sealing fit.
  • the sealing of the valve cover by the two inner and outer annular bosses can reduce the sealing contact area of the valve flap and the valve cover, which is beneficial to reduce the power when closing the valve and reduce the strength of manpower.
  • FIG. 1 is a schematic structural diagram of the present invention.
  • FIG. 2 is an enlarged view of part A of FIG. 1.
  • FIG. 3 is an enlarged view of part B of FIG. 1.
  • Fig. 4 is an enlarged view of part C of Fig. 1.
  • valve body 1 is provided with an inlet and an outlet
  • valve cover 3 is connected to the valve body 1 by bolts
  • a valve seat is provided in the valve body 1
  • a valve is provided on the valve seat Petal 2.
  • An inner bush 11 is arranged in the valve body 1, and the inner bush 11 is connected to each other through a plurality of dovetail grooves 1-1 provided on the inner surface of the valve body 1.
  • a valve stem 12 is connected to the upper end of the valve flap 2, the valve stem 12 extends out of the middle hole of the valve cover 3, and a dynamic seal structure is provided between the valve stem 12 and the valve cover 3.
  • the dynamic seal structure is composed of a V-shaped packing 4 arranged in the hole of the valve cover 3 and a packing gland 5 connected above the V-shaped packing 4 by bolts.
  • a valve cover bush 13 is arranged outside the valve cover 3 facing the valve body 1, and the valve cover bush 13 is connected to each other through a plurality of dovetail grooves provided on the inner surface of the valve cover 3.
  • An outer bushing 14 is arranged outside the valve flap 2 and the valve stem 12, and the outer bushing 14 is connected to each other through a plurality of dovetail grooves provided on the outer surfaces of the valve flap 2 and the valve stem 12, respectively.
  • Four through holes 2-1 are provided on the valve flap 2, the axial direction of each through hole 2-1 is parallel to the axial direction of the valve stem 12, and the inner liner connected with the outer bush 14 is provided in each through hole .
  • the width of the opening of each of the above dovetail grooves is smaller than the width of the bottom of the groove.
  • These surfaces and grooves are lined with strong corrosion-resistant fluoroplastics such as perfluoroethylene propylene and polytetrafluoroethylene.
  • a transmission nut 8 is fixedly arranged on the valve cover 3 through a connecting seat 15, a transmission screw 7 is cooperatively arranged in the transmission nut 8, and a hand wheel 10 is connected to the upper end of the transmission screw 7.
  • a guide block 6 composed of two halves for connecting the transmission screw 7 and the valve stem 12 is provided.
  • a first concave neck 7-1 and a first boss 7-2 are sequentially provided along the axial direction of the transmission screw 7 at the end of the transmission screw 7 away from the hand wheel 10, and the valve stem away from the valve flap 2
  • the end of 12 is provided with a second concave neck 12-1 and a second boss 12-2 in this order along the axial direction of the valve stem 12.
  • the first boss 7-2 and the second boss 12-2 are arranged oppositely, and the guide block 6 composed of two halves is wrapped around the first concave neck 7-1, the first boss 7-2, and the second concave Outside the neck 12-1 and the second boss 12-2, the inner surface of the guide block 6 is provided with the first concave neck 7-1, the first boss 7-2, the second concave neck 12-1 and the second boss 12-2
  • the concave and convex curved surface, the two halves are connected by two pairs of bolts and nuts 6-1.

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

Abstract

L'invention concerne une vanne d'arrêt entièrement chemisée de plastique fluoré anti-particules hautement résistante à la corrosion. Un siège de vanne est disposé dans un corps de vanne (1) ; un obturateur de vanne (2) est disposé de manière correspondante sur le siège de vanne ; une tige de vanne (12) est reliée sur l'extrémité supérieure de l'obturateur de vanne (2) ; la tige de vanne (12) s'étend hors d'un chapeau de vanne (3) ; une structure d'étanchéité dynamique est disposée entre la tige de vanne (12) et le chapeau de vanne (3) ; un écrou d'entraînement (8) est disposé sur le chapeau de vanne (3) ; une vis d'entraînement (7) est disposée de manière correspondante dans l'écrou d'entraînement (8) ; une extrémité de la vis d'entraînement (7) est reliée à un volant (10) ; un bloc de guidage (6) utilisé pour relier la vis d'entraînement (7) et la tige de vanne (12) est disposé entre l'autre extrémité de la vis d'entraînement (7) et l'extrémité de la tige de vanne (12) s'étendant hors du chapeau de vanne (3).
PCT/CN2019/094195 2019-01-11 2019-07-01 Vanne d'arrêt entièrement chemisée de plastique fluoré anti-particules hautement résistante à la corrosion WO2020143195A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910026610.1 2019-01-11
CN201910026610.1A CN109538775A (zh) 2019-01-11 2019-01-11 耐强腐抗颗粒氟塑料全衬截止阀

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Publication Number Publication Date
WO2020143195A1 true WO2020143195A1 (fr) 2020-07-16

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WO (1) WO2020143195A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109538775A (zh) * 2019-01-11 2019-03-29 江苏金晟元特种阀门股份有限公司 耐强腐抗颗粒氟塑料全衬截止阀

Citations (4)

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US4147824A (en) * 1976-03-31 1979-04-03 Burkert Gmbh Multilayer seals and method for their production and joining to seal carriers
CN202580042U (zh) * 2012-04-20 2012-12-05 江苏金晟元特种阀门有限公司 耐强腐免维护氟塑料全衬截止阀
CN108775406A (zh) * 2018-08-21 2018-11-09 江苏金晟元特种阀门股份有限公司 高性能纳米涂层波纹管氯气专用阀
CN109538775A (zh) * 2019-01-11 2019-03-29 江苏金晟元特种阀门股份有限公司 耐强腐抗颗粒氟塑料全衬截止阀

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US4231549A (en) * 1978-12-11 1980-11-04 Kerotest Manufacturing Corp. Valve stem and valve disc connection for a diaphragm valve
CN2343423Y (zh) * 1998-04-30 1999-10-13 南通市苏中化工阀门厂 氯碱用氟塑料全衬截止阀
JP5681396B2 (ja) * 2010-06-29 2015-03-04 株式会社不二工機 電動弁
CN202659992U (zh) * 2012-07-22 2013-01-09 江苏金晟元特种阀门有限公司 免维护氟塑料全衬立式止回阀
CN104776228A (zh) * 2015-04-22 2015-07-15 南通市天源阀门制造有限公司 一体式截止阀
CN105065710A (zh) * 2015-08-06 2015-11-18 云南红渊投资有限公司 一种抗磨耐腐蚀衬聚氨酯直通隔膜阀
CN206338461U (zh) * 2016-08-22 2017-07-18 江苏金晟元特种阀门股份有限公司 氟塑料全衬波纹管氯气专用阀
CN206889683U (zh) * 2017-05-27 2018-01-16 扬州市职业大学 耐腐蚀全衬截止阀
CN209325067U (zh) * 2019-01-11 2019-08-30 江苏金晟元特种阀门股份有限公司 耐强腐抗颗粒氟塑料全衬截止阀

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147824A (en) * 1976-03-31 1979-04-03 Burkert Gmbh Multilayer seals and method for their production and joining to seal carriers
CN202580042U (zh) * 2012-04-20 2012-12-05 江苏金晟元特种阀门有限公司 耐强腐免维护氟塑料全衬截止阀
CN108775406A (zh) * 2018-08-21 2018-11-09 江苏金晟元特种阀门股份有限公司 高性能纳米涂层波纹管氯气专用阀
CN109538775A (zh) * 2019-01-11 2019-03-29 江苏金晟元特种阀门股份有限公司 耐强腐抗颗粒氟塑料全衬截止阀

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