WO2014003215A1 - Structure de logement d'arbre étanche à l'eau pour robinet à papillon - Google Patents

Structure de logement d'arbre étanche à l'eau pour robinet à papillon Download PDF

Info

Publication number
WO2014003215A1
WO2014003215A1 PCT/KR2012/005050 KR2012005050W WO2014003215A1 WO 2014003215 A1 WO2014003215 A1 WO 2014003215A1 KR 2012005050 W KR2012005050 W KR 2012005050W WO 2014003215 A1 WO2014003215 A1 WO 2014003215A1
Authority
WO
WIPO (PCT)
Prior art keywords
butterfly valve
bush
groove
ring
fluid
Prior art date
Application number
PCT/KR2012/005050
Other languages
English (en)
Korean (ko)
Inventor
윤석현
윤일중
김영길
전인
Original Assignee
주식회사 에이치케이밸브
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 주식회사 에이치케이밸브 filed Critical 주식회사 에이치케이밸브
Priority to PCT/KR2012/005050 priority Critical patent/WO2014003215A1/fr
Publication of WO2014003215A1 publication Critical patent/WO2014003215A1/fr

Links

Images

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
    • F16K1/16—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 pivoted closure-members
    • F16K1/18—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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation

Definitions

  • the present invention relates to a butterfly valve mounted on a water supply pipe, a sewage pipe, etc., to maintain airtightness by a disc, and relates to a watertight structure for blocking fluid penetration of a body housing portion of a valve into which a shaft is inserted.
  • a resin is provided to surround the inner and outer surfaces of the bush, and a plurality of O-rings are inserted into the inner surface of the bush, thereby making it susceptible to corrosion. This is a technique for the watertight structure of the butterfly valve of the butterfly valve that protects the bearing portion from corrosion.
  • Butterfly valves mounted on water pipes are classified into rubber seat butterfly valves and metal seat butterfly valves according to the type of seat. These butterfly valves control the fluid by the rotation of a circular or elliptical disk inside the body. A shaft is inserted to rotate the disk, which is inserted through the disk and the body of the valve.
  • the butterfly valves anticorrosive surfaces that the fluid touches to prevent corrosion by the fluid.
  • the inner surface of the butterfly valve and the disk are the areas where the fluid always touches, so they are thoroughly treated.
  • the outer surface of the body that is not in contact with the fluid is subjected to anticorrosive treatment to prevent corrosion.
  • the axial housing part of the body into which the shaft is inserted is the axial housing part into which the shaft is inserted.
  • the axial housing portion is a portion into which the shaft for supporting and driving the disk is inserted, which requires high precision, and thus it is difficult to perform separate anticorrosion processing.
  • Each butterfly valve has a structure for blocking the penetration of the fluid, but in reality it is impossible to completely prevent the blocking of the fluid. This is because the shaft is transmitted with a strong torque for driving the disk. When the fluid barrier property is increased, the torque of the shaft increases, and the o-ring inserted for the purpose of fluid blocking hardens over time and does not perform its role.
  • the life of a butterfly valve depends on the environment in which it is used, typically 10 to 20 years.
  • the main reason why the valve can not be repaired at this time is the severe corrosion of the axle. That is, the main reason for determining the life of the butterfly valve is the corrosion of the enclosure portion, because it does not completely block the fluid penetrating into the enclosure portion.
  • Corrosion due to fluid infiltration of the shaft portion of the butterfly valve not only acts to shorten the life of the valve, but also causes contamination of the fluid.
  • the butterfly valve when the butterfly valve is connected to the water supply pipe, it becomes a great cause of contaminating the melted water quality due to the corrosion of the axial housing part.
  • an object of the present invention is to provide a watertight watertight structure of a butterfly valve which prevents fluid from penetrating into the watertight portion of the body into which the axis of the butterfly valve is inserted.
  • Another object of the present invention is to provide a watertight watertight structure of a butterfly valve that can extend the life of the valve by blocking fluid penetration of the watertight portion of the butterfly valve to prevent corrosion of the watertight portion.
  • Another object of the present invention is to provide a water-sealing structure of a butterfly valve which can prevent stigma of water when the butterfly valve is used in a water supply pipe by preventing contamination of the fluid by corrosion of the water-sealing portion.
  • the butterfly valve installed in the pipeline for transporting the fluid is composed of a cylindrical body and a disk disk to control the flow of the fluid by the rotation of the disk, the end portion
  • the outer diameter groove 11 is formed on the outer surface and the inner groove 12 is formed on the inner surface corresponding to the outer diameter groove 11, a plurality of inner o-ring grooves 13 are formed in the central portion of the inner surface
  • a plurality of O-rings 24 inserted into the plurality of inner O-ring grooves 13 of the bush 10. Characterized in that it comprises a.
  • the bush 10 has an outer O-ring groove 14 is formed on the outer surface, the outer O-ring groove 14 is a rectangular O-ring 24 is inserted into the shape of the cross section protruding corner It features.
  • the bush 10 is the inner end groove 15 is formed on the inner surface of the distal end in the opposite direction to the disk 40, a plurality of the inner end groove 15 is pressed by the presser 80 O-ring 24 is characterized in that is inserted.
  • the O-ring 24 is inserted into the plurality of inner O-ring grooves 13 of the bush 10 is characterized in that the cross-sectional shape of the square protruding corners.
  • the butterfly valve for controlling the flow of the fluid by the rotation of the disk is composed of a cylindrical body and a disk disk is installed in the pipeline for transporting the fluid according to another preferred embodiment of the present invention for achieving the above object
  • the outer diameter groove 11 is formed on the outer surface of the distal end
  • the inner groove 12 is formed on the inner surface corresponding to the outer diameter groove 11, and a plurality of inner o-ring grooves 13 are formed on the central portion of the inner surface.
  • a cylindrical bush 10 formed of a metal material inserted into the axial housing 60 of the valve body;
  • a disk-shaped mold 20 having a cylinder having the same outer diameter as the shaft 50 of the valve on one side and having an inlet 21 and an air outlet 22 formed therein;
  • An elastic material resin 23 formed by mounting the mold 20 at the inlet of the celebratory housing 60 and covering and enclosing the inner side groove 12 and the outer diameter groove 11 of the bush 10;
  • a rectangular O-ring 24 having a corner protruding in the shape of a cross section inserted into the plurality of inner O-ring grooves 13 of the bush 10. Characterized in that it comprises a.
  • the watertight housing watertight structure of the butterfly valve according to the present invention has the following effects.
  • the present invention can prolong the life of the valve by blocking the fluid penetration of the portion of the housing 60 of the butterfly valve to prevent corrosion of the housing.
  • the present invention can prevent the contamination of the fluid due to corrosion of the axial housing portion, it is possible to prevent the stigma of water when using the butterfly valve in the water supply pipe.
  • the present invention prevents fluid from penetrating into the shaft portion of the body into which the shaft of the butterfly valve is inserted.
  • the present invention uses a bush of a specific structure, a resin molded to surround the inner and outer surfaces of the bush and a plurality of O-rings so as not to affect the torque of the shaft while ensuring the watertightness of the shaft portion of the butterfly valve.
  • FIG. 1 is a view showing the structure of a conventional butterfly valve.
  • Figure 2 is a view showing the watertight housing watertight structure of a conventional butterfly valve.
  • Figure 3 is a view showing the watertight housing watertight structure of the butterfly valve according to an embodiment of the present invention.
  • FIG. 4 is a view showing a mold mounting state for molding the resin included in the present invention.
  • FIG. 5 is a view showing a bush included in the present invention.
  • Fig. 6 is a view showing (a) front view and (b) side view of a mold for molding the resin included in the present invention.
  • FIG. 7 is a view showing an O-ring included in the present invention.
  • FIG. 1 is a structure of a conventional butterfly valve
  • Figure 2 is a view showing the watertight housing structure of the conventional butterfly valve.
  • the conventional butterfly valve shown is a rubber seat butterfly valve, the material of the seat to block the fluid is expressed as rubber sheet rubber. Since this part is not included in the scope of the present invention, a detailed description thereof will be omitted.
  • the present invention covers all kinds of butterfly valves.
  • a cylindrical bush 10 of bronze or brass is inserted into the inner surface of the celebrity housing 60 of the body, and a shaft 50 of a stainless steel material is inserted through the bush 10.
  • the body 30 of the valve typically uses a ductile (Ducktile, GCD 450) and the material of the axial housing 60 is the same as the material of the body (30).
  • the penetration of fluid into the housing 60 begins at the point where the through-hole (not shown) portion of the body 30 is in contact with the outer surface of the shaft 50 for penetrating the shaft 50. .
  • This part is also the part where the metal body 30 and the metal shaft 50 are in contact with each other, but because the shaft 50 is a part that rotates, it is difficult to prevent the penetration of the fluid.
  • the means for preventing the penetration of fluid into the enclosure 60 portion of the butterfly valve is an O-ring 24.
  • the O-ring 24 is inserted between the stepped portion of the body 30 and the bush 10, the O-ring 24 is pressed by the compression of the shaft cover 70 or the presser 80 to maintain the watertightness have.
  • the disk 40 In order to drive the valve, the disk 40 must be rotated and the shaft 50 must be rotated for this purpose. As time passes, the rubber O-ring 24 hardens or ages to change physical properties such as elastic force. Will lose its original functionality. In this case there is no longer any means to shut off the fluid once it has passed through the portion with the o-ring 24. When the fluid penetrates into the celebratory housing 60, the inner surface of the celebratory housing 60 of ductile material, which is the most vulnerable material to corrosion, is rapidly corroded.
  • the shaft 50 and the bush 10 are made of stainless steel and brass or bronze, which are resistant to corrosion, so that corrosion damage due to fluid penetration is relatively low.
  • FIG 3 is a view showing the watertight watertight structure of the butterfly valve according to an embodiment of the present invention
  • Figure 4 is a view showing a mold mounting state for molding the resin included in the present invention
  • Figure 5 is the present invention 6
  • (b) are views showing (a) a front view and (b) a side view of a mold for molding a resin included in the present invention.
  • Penetration of the fluid into the portion of the turret housing 60 proceeds along the outer and inner surfaces of the bush 10. Therefore, in order to complete the watertight structure of the conical housing 60, each watertight means for the outer side and the inner side of the bush 10 is required.
  • the bush 10 included in the present invention is a cylindrical cylindrical metal
  • the outer diameter groove 11 is formed on the outer surface of the distal end portion corresponding to the outer diameter groove 11
  • An inner groove 12 is formed on the inner surface
  • a plurality of inner o-ring grooves 13 are formed on the central portion of the inner surface
  • inner terminal grooves 15 are formed on the inner surface of the distal end of the disk 40.
  • Protruding step 16 is formed on the outer surface corresponding to the inner end groove 15.
  • the bush 10 In order to prevent fluid from penetrating along the outer surface of the bush 10, the bush 10 is inserted into the housing 60, the mold 20 is mounted, and the resin 23 in the liquid state is transferred to the mold 20. Inject into the injection hole 21 formed in the). When the resin 23 in the liquid state is cured and hardened, the mold 20 is removed, and the resin 23 is formed by wrapping one end portion of the bush 10. That is, the resin 23 is formed while covering the inner groove 12 and the outer diameter groove 11 of one side of the bush 10. The resin 23 thus formed serves to block the fluid from penetrating along the outer surface of the bush 10.
  • the resin 23 may use a conventional elastic body, and includes all the elastic bodies having water tightness, including a polymer compound such as rubber or urethane.
  • the kind of resin 23 is not contained in the summary of this invention, and a normal watertight body will correspond to this.
  • a separate mold 20 is required, and the mold 20 generally includes an injection port 21 for injecting the resin 23 in a liquid state and air.
  • the air outlet 22 to be discharged is formed.
  • the resin 23 in the liquid state hardens while filling the space formed by the mold 20, the bush 10, and a part of the body 30. Since the specific method of shape
  • Blocking fluid penetrating along the outer surface of the bush 10 is formed on the outer surface of the bush 10 and the resin 23 molded to surround the inner and outer surfaces of the bush 10.
  • O-ring 24 is inserted into the O-ring groove (14).
  • the O-ring 24 inserted into the outer O-ring groove 14 is inserted in case the resin 23 does not perform its function.
  • the O-ring 24 has a rectangular cross section protruding from the corner. It is desirable to.
  • the o-ring 24 inserted into the outer o-ring groove 14 should be inserted before molding the resin 23.
  • FIG. 7 is a view showing a cross-sectional shape of the O-ring included in the present invention.
  • the fluid penetration of the butterfly valve body 30 into the part of the housing 60 is made not only on the outer side of the bush 10 but also on the inner side.
  • a plurality of O-rings are inserted into the plurality of inner o-ring grooves 13 formed on the inner surface of the bush 10. Provide 24.
  • the plurality of O-rings 24 included in the present invention includes a circular, elliptical, and quadrangular protruding corners.
  • the rectangular O-ring 24 having the shape of the cross section protruding from the corner portion has an advantage of maintaining watertightness regardless of the type of the fluid or the size of the pressure. Therefore, in order to enhance the effect of the present invention, it is preferable that the o-ring 24 uses a rectangular o-ring 24 having a protruding edge.
  • a plurality of O-rings 24 are sequentially inserted and finally inserted into the inner end groove 15 of the bush 10 O-ring 24 plays its role.
  • the plurality of O-rings 24 inserted into the inner end grooves 15 of the bush 10 are pressed by the presser 80 to maintain watertightness.
  • the watertight watertight structure of the butterfly valve can be applied to a water pipe or a sewer pipe.

Landscapes

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

Abstract

La présente invention porte sur une structure de logement d'arbre étanche à l'eau pour un robinet à papillon et qui a en particulier les effets suivants : empêche un fluide de s'infiltrer dans la partie de logement d'arbre d'un corps dans lequel est inséré l'arbre de robinet à papillon; assure l'étanchéité à l'eau de la partie de logement d'arbre d'un robinet à papillon et utilise un coussinet ayant une certaine structure, une résine et une pluralité de joints toriques formés pour enfermer la surface intérieure et la surface extérieure du coussinet de façon à ne pas affecter le couple de l'arbre ; allonge la durée de vie d'un robinet en bloquant l'infiltration de fluide au niveau de la partie de logement d'arbre du robinet à papillon et évite la corrosion de la partie de logement d'arbre ; et évite la contamination de l'eau lorsque le robinet à papillon est utilisé dans une canalisation d'alimentation en eau en évitant la contamination de fluide due à la corrosion de la partie de logement d'arbre.
PCT/KR2012/005050 2012-06-26 2012-06-26 Structure de logement d'arbre étanche à l'eau pour robinet à papillon WO2014003215A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/005050 WO2014003215A1 (fr) 2012-06-26 2012-06-26 Structure de logement d'arbre étanche à l'eau pour robinet à papillon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/005050 WO2014003215A1 (fr) 2012-06-26 2012-06-26 Structure de logement d'arbre étanche à l'eau pour robinet à papillon

Publications (1)

Publication Number Publication Date
WO2014003215A1 true WO2014003215A1 (fr) 2014-01-03

Family

ID=49783339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/005050 WO2014003215A1 (fr) 2012-06-26 2012-06-26 Structure de logement d'arbre étanche à l'eau pour robinet à papillon

Country Status (1)

Country Link
WO (1) WO2014003215A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110049756A (ko) * 2011-04-01 2011-05-12 주식회사 에이치케이밸브 버터플라이 밸브 축하우징의 수밀 구조

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110049756A (ko) * 2011-04-01 2011-05-12 주식회사 에이치케이밸브 버터플라이 밸브 축하우징의 수밀 구조

Similar Documents

Publication Publication Date Title
CN104455462A (zh) 一种极靴上开迷宫结构的磁性液体密封装置
US20190271415A1 (en) System and method for sealing wires, cables, pipes and drain holes through buffer
WO2014003215A1 (fr) Structure de logement d'arbre étanche à l'eau pour robinet à papillon
CN107076344B (zh) 囊袋浪涌抑制器
CN106090256A (zh) 浮动式压差气体密闭阀
KR20110049756A (ko) 버터플라이 밸브 축하우징의 수밀 구조
US20020074040A1 (en) Butterfly valve with passive-lubricated liner/seat
WO2014003214A1 (fr) Structure de logement d'arbre étanche à l'eau pour robinet à papillon
US10088081B2 (en) Hydraulic connecting bush, hydraulic connection, and hydraulic plug
KR101288479B1 (ko) 폴리우레탄 버터플라이 밸브의 축하우징 수밀구조
KR101794766B1 (ko) 버터플라이 밸브의 축하우징 수밀 구조
CN105402433A (zh) 水下球阀的内外压力密封结构
KR200453018Y1 (ko) 누설방지용 보호관
CN207486301U (zh) 一种可旋转的高压高寿命多通道接头
KR101346697B1 (ko) 침수방지밸브
CN206377055U (zh) 组合式轴承压盖
US20010040229A1 (en) Air intake assembly for an internal combustion engine
CN219841081U (zh) 一种阀结构
KR102102563B1 (ko) 부식 및 녹물 방지구조를 가지는 밸브
CN204186604U (zh) 一种耐腐蚀磁力泵
KR940008180Y1 (ko) 버터플라이 밸브의 몸통시트 누설방지를 위한 장치
KR101467141B1 (ko) 버터플라이 밸브 축하우징의 수밀 구조
CN108591522A (zh) 缓冲阀门结构
CN114413051B (zh) 一种具有耐腐蚀防水功能的阀门用零部件及加工方法
RU2224157C2 (ru) Поворотная заслонка

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12879852

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12879852

Country of ref document: EP

Kind code of ref document: A1