KR20110129794A - Butterfly valve - Google Patents

Butterfly valve Download PDF

Info

Publication number
KR20110129794A
KR20110129794A KR1020100049616A KR20100049616A KR20110129794A KR 20110129794 A KR20110129794 A KR 20110129794A KR 1020100049616 A KR1020100049616 A KR 1020100049616A KR 20100049616 A KR20100049616 A KR 20100049616A KR 20110129794 A KR20110129794 A KR 20110129794A
Authority
KR
South Korea
Prior art keywords
disk
seat
valve body
sheet
around
Prior art date
Application number
KR1020100049616A
Other languages
Korean (ko)
Other versions
KR101126412B1 (en
Inventor
손외근
Original Assignee
손외근
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 손외근 filed Critical 손외근
Priority to KR1020100049616A priority Critical patent/KR101126412B1/en
Publication of KR20110129794A publication Critical patent/KR20110129794A/en
Application granted granted Critical
Publication of KR101126412B1 publication Critical patent/KR101126412B1/en

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
    • F16K1/222—Shaping of the 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
    • 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
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • 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
    • F16K1/42—Valve seats
    • 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
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats
    • 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
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves

Landscapes

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

Abstract

In the present invention, the first and second sidesheets are attached to the circumference of the front lower end of the disk and the upper circumference of the rear of the disk, respectively, so that the first sidesheet attenuates the fluid when the static pressure of the fluid is transmitted to the disk. When the back pressure is delivered to the disk, the second side seat to attenuate it to provide a triple side seat butterfly valve to maintain the airtightness between the valve body and the disk regardless of the static and back pressure of the fluid.

Description

Triple Side Seat Butterfly Valve {BUTTERFLY VALVE}

FIELD OF THE INVENTION The present invention relates to butterfly valves and, more particularly, to a triple side seat butterfly valve that enables airtightness between the valve body and the disc regardless of the hydrostatic and back pressure of the fluid.

As is well known, the butterfly valve is also called a foldable side, it refers to a valve designed to control the flow rate by opening and closing the valve in accordance with the rotation of the disk of the disk shape.

The butterfly valve is installed between the pipelines and includes a valve body having a flow path formed therein, a drive shaft for rotating the disk and rotating the disk by a drive source, and a disk coupled to the drive shaft and opening and closing the flow path of the valve body. Configure.

On the other hand, the inner circumferential surface of the valve body is formed with a protruding annular valve body seat, the outer circumferential surface of the valve disk adjacent to the valve body seat is mounted with a sealing member in close contact with the valve body seat to maintain airtightness when the valve is shut off. Will be constructed.

In the conventional butterfly valve configured as described above, the sealing member 125 is mainly made of a flexible elastic material such as rubber, the sealing member made of such an elastic material is excellent in adhesion to the valve body seat and the airtightness of the valve There is an advantage that can be increased, but in terms of strength, it is very fragile and easily damaged by friction with the valve body seat, impact from the transfer fluid and foreign matter in the pipe due to frequent opening and closing operations, and has a short life.

In addition, due to its weakness in strength, a sealing member made of a metal material is also used. However, a metal sealing member is inferior in elasticity and flexibility to a rubber body such as rubber. There was a problem that the air tightness worsens when the valve is shut off.

As a prior art for solving the above problems, Korean Patent Office Registration Utility Model Publication No. 20-0365286 (name: butterfly valve) (hereinafter referred to as prior art) has been published.

According to the prior art, the rubber sheet and the metal sheet are dually installed along the outer circumferential surface of the valve disc so that the breakage and wear caused by friction with the valve body sheet are reinforced by the metal sheet, and the adhesiveness with the valve body sheet has elastic force. By reinforcing the rubber seat, the rubber seat has an effect of overcoming the problems of the butterfly valve adopting the conventional single seat structure.

However, the prior art is a process in which the rubber seat and the metal sheet are pushed backward through the inclination angle when the valve body seat contacting the rubber seat and the metal sheet is formed into a cross-sectional structure that is simply inclined rearward only when the static pressure is transmitted to the disk. In this case, the valve body seat may be more firmly adhered to the valve body seat. On the contrary, when the back pressure is transmitted to the disk, the rubber seat and the metal sheet may be separated from the valve body seat in the process of being pushed forward, thereby preventing airtightness.

Therefore, the technical problem to be achieved by the present invention is to attach the first and second side sheets of semi-circular plate shape around the bottom of the front of the disk and the top of the rear of the disk, respectively, between the valve body and the disk regardless of the hydrostatic and back pressure of the fluid. To provide a triple side seat butterfly valve to maintain the air tightness of the.

The present invention for achieving the above object is a valve body 10, a disk for opening and closing the inner flow path of the valve body, a disk seat fitted to the outer peripheral surface of the disk, the disk seat is fitted to the inner peripheral surface and In a butterfly valve comprising a body seat for contacting and maintaining airtightness, a first side seat is attached to the lower periphery of the disk, the outer surface of the first side seat is exposed to the outside from the lower periphery of the disk And a first protruding frame is formed around the outer surface of the exposed first side sheet, and the first protruding frame is configured to fit in a first insertion groove recessed around the front surface of the body sheet. And a second side sheet is attached to the upper circumference of the rear surface of the disk, and an outer surface of the second side sheet is formed on the top of the disk. A second insertion groove is configured to be exposed to the outside from the circumference, and a second protrusion frame is formed around the outer surface of the exposed second side sheet, and the second protrusion frame is recessed around the rear surface of the body sheet. Characterized in that configured to fit in.

The triple side seat butterfly valve according to the present invention attaches the first and second side sheets to the circumference of the front lower end of the disk and the upper circumference of the rear of the disk, respectively, so that when the static pressure of the fluid is transferred to the disk, the first side seat is When the reverse pressure of the fluid is transmitted to the disk, the second sidesheet attenuates it, thereby having an effect of maintaining airtightness between the valve body and the disk regardless of the static pressure and the back pressure of the fluid. .

1 is a view showing the configuration of a triple side seat butterfly valve according to a preferred embodiment of the present invention.
FIG. 2 is an exploded view showing the main configuration of the triple side seat butterfly valve shown in FIG.
3 is an exploded cross-sectional view showing the main configuration of the triple side seat butterfly valve shown in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments that can be presented with the present invention are replaced by the description in the configuration of the present invention.

In the present invention, the first and second sidesheets are attached to the circumference of the front lower end of the disk and the upper circumference of the rear of the disk, respectively, so that the first sidesheet attenuates the fluid when the static pressure of the fluid is transmitted to the disk. When the back pressure is delivered to the disk, the second side seat is designed to attenuate it so as to implement a triple side seat butterfly valve to maintain the airtightness between the valve body and the disk regardless of the static and back pressure of the fluid.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing the overall configuration of the triple side seat butterfly valve according to the present invention, Figure 2 is a view showing a part of the configuration of the triple side seat butterfly valve shown in FIG.

As shown in FIG. 1 and FIG. 2, the triple side seat butterfly valve 100 of the present invention is installed between the pipelines through which fluid flows and has a valve body 10 having a flow path 12 therein, and The disk 20 for opening and closing the flow path 12 of the valve body 10 and the disk 20 is rotated by the power of a drive source (not shown) installed on the outside of the valve body 10 and the disk The drive shaft 22 which drives the 20 is comprised.

On the other hand, between the disk 20 and the valve body 10 is further provided with an airtight means for preventing the leakage of fluid.

As shown in FIG. 2, the airtight means includes a disk sheet 30 and a body sheet 40 and a plurality of first and second side sheets 50 and 60.

The disk sheet 30 is a sheet that is bolted in a state of being fitted to the outer peripheral surface of the disk 20 in the form of a circular ring. The disk seat grand 32 is further fitted to the outer circumferential surface of the disk 20. The disk seat grand 32 together with the disk sheet 30 in a state of being in close contact with the rear surface of the disk sheet 30 so that the disk sheet 30 inserted into the outer circumferential surface of the disk sheet 30 is not separated. It is configured to be bolted to the disk (20).

The body seat 40 is a seat that is coupled to the inner circumferential surface of the valve body 10 in which the disk seat 30 is located and is in contact with the disk seat 30 to seal between the disk 20 and the valve body 10. . The body sheet 40 is formed in a circular ring shape, wherein first and second insertion grooves 42 and 44 are further formed around the lower front circumference of the body sheet 40 and the upper upper circumference thereof. The first and second insertion grooves 42 and 44 are configured to fit the first and second protrusions 54 and 64 formed in the first and second side sheets 50 and 60, respectively.

The first and second side seats 50 and 60 are seats provided for the purpose of increasing the airtightness between the valve body 10 and the disk 20 by attenuating the positive and reverse pressure of the fluid passing through the valve body 10. to be.

The first sidesheet 50 is a means for reducing the static pressure of the fluid, and has a shape corresponding to the semicircle around the circular shape of the disk 20 and to be attached around the bottom of the front surface of the disk 20. do. As described above, the first side sheet 50 is not molded into a circular shape that the disk 20 has, and as described above, the first side sheet 50 is formed in a shape corresponding to a semicircle circumference of the disk 20. In other words, the disk 20 is rotated in only one direction to open the flow path 12 of the valve body 10 by the first side seat 50 when the disk 20 rotates in one direction. This is to prevent the rotation of the 20 from interfering.

The outer surface 52 of the first side seat 50 is configured to be exposed to the outside around the bottom of the disk 20 to cover the gap between the disk 20 and the valve body 10. A first protruding frame 54 is formed to protrude around the outer surface of the exposed first side sheet 50, and the first protruding frame 54 is the first insertion groove 42 of the body sheet 40. The first side seat 50, which is fitted in the gap between the disk 20 and the valve body 10, is increased, thereby increasing the adhesion.

The first sidesheet 50 is attached to the front surface of the first sidesheet 50 so that the first sidesheet 50 attached to the lower periphery of the front surface of the disk 20 is not separated from the disk 20. The first side seat gland 56 is further included to be bolted in close contact with the front surface.

On the other hand, the second side sheet 60 is a sheet for reducing the back pressure of the fluid, is formed in the same shape as the first side sheet 50 described above is configured to be attached around the top of the rear of the disk 20.

In addition, the outer surface 62 of the second side seat 60 is configured to be exposed to the outside around the upper end of the disk 20 is configured to cover the gap between the disk 20 and the valve body 10. A second protruding frame 64 is formed to protrude around the outer surface 62 of the exposed second side sheet 60, and the second protruding frame 64 is a second insertion groove of the body sheet 40. Inserted into the 44 and to increase the adhesion of the second side seat 60 is covered in the gap between the disk 20 and the valve body 10.

In addition, the second side sheet 60 is disposed on a rear surface of the second site sheet 60 so that the second side sheet 60 attached to the upper circumference of the rear surface of the disk 20 is not separated from the disk 20. The second side seat gland 66 is further fastened to be in close contact with the rear of the.

Hereinafter, the operation of the triple side seat butterfly valve according to the present invention will be described with reference to FIGS.

When assembling the airtight means in the triple side seat butterfly valve 100 according to the present invention, the disc seat 30 is first inserted into the outer circumferential surface of the disc 20, and then the disc seat 30 is inserted into the disc seat grand 32. ) Is bolted in the state in close contact with the disk 20 to fix the disk sheet 30 to the disk 20.

Subsequently, the body seat 40 is attached to the inner circumferential surface of the valve body 10 where the disc 20 is located so that the disc seat 30 and the body seat 40 come into contact with each other. The clearance between the valve body 10 is to be airtight.

And the first and second sidesheets 50, circumferentially around the lower front circumference and the rear upper circumference of the disk 20 so as to attenuate the forward and reverse pressure of the fluid to the gap between the disk 20 and the valve body 10. 60) are attached to each other to complete the assembly.

That is, the triple side seat butterfly valve 100 of the present invention through the airtight means configured as described above, when the positive pressure of the fluid is delivered to the disk 20, the first side seat 50 attenuates it, thereby depending on the positive pressure. It is possible to increase the airtightness of the gap between the disk 20 and the valve body 10, on the contrary, when the back pressure of the fluid is delivered to the disk 20, the second side seat 60 attenuates it and the disk according to the back pressure ( It is possible to increase the airtightness of the gap between the 20) and the valve body (10).

10: valve body 20: disk
30: disc seat 40: body seat
50: first sidesheet 60: second sidesheet

Claims (1)

The valve body 10, the disk 20 for opening and closing the internal flow path 12 of the valve body 10, the disk seat 30 fitted to the outer peripheral surface of the disk 20, of the valve body 10 In the triple side seat butterfly valve including a body seat 40 which is fitted to the inner circumferential surface and in contact with the disk seat 30 to maintain the airtightness,
A first sidesheet 50 is attached around the front lower end of the disk 20;
The outer surface 52 of the first side sheet 50 is configured to be exposed to the outside from the lower circumference of the disk 20, the first around the outer surface 52 of the exposed first side sheet 50 Forming a protruding frame (54), and the first protruding frame (54) is configured to fit in a first insertion groove (42) recessed around a front surface of the body sheet (40);
A second sidesheet 60 is attached around the top rear of the disk 20;
The outer surface 62 of the second side sheet 60 is configured to be exposed to the outside from the upper circumference of the disk 20, and the outer surface 62 of the exposed second side sheet 60 around the outer surface 62 The second protrusion frame 64 is formed, and the second protrusion frame 64 is configured to be inserted into the second insertion groove 44 recessed around the rear surface of the body sheet 40. Side seat butterfly valve.
KR1020100049616A 2010-05-26 2010-05-26 Butterfly valve KR101126412B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100049616A KR101126412B1 (en) 2010-05-26 2010-05-26 Butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100049616A KR101126412B1 (en) 2010-05-26 2010-05-26 Butterfly valve

Publications (2)

Publication Number Publication Date
KR20110129794A true KR20110129794A (en) 2011-12-02
KR101126412B1 KR101126412B1 (en) 2012-03-22

Family

ID=45498861

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100049616A KR101126412B1 (en) 2010-05-26 2010-05-26 Butterfly valve

Country Status (1)

Country Link
KR (1) KR101126412B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102188910B1 (en) * 2019-11-28 2020-12-09 주식회사 디에이치콘트롤스 High Temperature Air Sealing Butterfly Valve
KR102295552B1 (en) * 2020-06-17 2021-08-31 주식회사 디에이치콘트롤스 Air sealing control valve with improved emission reduction of exhaust gas
KR102313841B1 (en) * 2020-08-19 2021-10-19 주식회사 브이티엘 High Temperature Damper

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102097405B1 (en) 2017-08-29 2020-05-27 김진욱 Butterfly valve with sealing control function
KR102122754B1 (en) 2019-10-14 2020-06-15 (주) 신성컨트롤 Butterfly valve of prevents separation between main shaft and disc
KR20200018539A (en) 2020-02-11 2020-02-19 김진욱 Butterfly valve with sealing control function

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990012670U (en) * 1997-09-11 1999-04-15 전표원 Butterfly valve
KR200254812Y1 (en) 2001-08-31 2001-12-01 이정수 Double sealing metal seat for butterfly valve
KR200365286Y1 (en) 2004-08-05 2004-10-20 이정수 a butterfly valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102188910B1 (en) * 2019-11-28 2020-12-09 주식회사 디에이치콘트롤스 High Temperature Air Sealing Butterfly Valve
WO2021107282A1 (en) * 2019-11-28 2021-06-03 주식회사 디에이치콘트롤스 Air-sealing butterfly valve for high temperatures
KR102295552B1 (en) * 2020-06-17 2021-08-31 주식회사 디에이치콘트롤스 Air sealing control valve with improved emission reduction of exhaust gas
KR102313841B1 (en) * 2020-08-19 2021-10-19 주식회사 브이티엘 High Temperature Damper

Also Published As

Publication number Publication date
KR101126412B1 (en) 2012-03-22

Similar Documents

Publication Publication Date Title
KR101126412B1 (en) Butterfly valve
WO2020259458A1 (en) Three-way water valve
US8714521B2 (en) Butterfly valve, valve seat and valve seat retainer
KR101241998B1 (en) A butterfly valves
WO2007078426A3 (en) Flexible seals for process control valves
KR101109471B1 (en) Butter fly valve
JP3570625B2 (en) Stopper device
KR20110066259A (en) Double sealing structure for butterfly valve
KR101878045B1 (en) butterfly valve
KR101021901B1 (en) A buiterfly valve
KR200365286Y1 (en) a butterfly valve
KR200254812Y1 (en) Double sealing metal seat for butterfly valve
CN110566677B (en) Butterfly valve soft seal valve seat structure
KR200326530Y1 (en) Butterfly valve
KR200443622Y1 (en) Butterfly valves having flexible metal sheet
EP2551566B1 (en) Rotary valve and rotary valve seal
KR200295954Y1 (en) Double sealing structure for butterfly valve
KR200366883Y1 (en) Double sealing soft metal seat butterfly valve
KR101124165B1 (en) Butterfly valve
KR101542503B1 (en) Sphere type butterfly valve
ES2880048T3 (en) Butterfly valve with centered disc
KR101271386B1 (en) Sheet unification butterfly valves
CN208281519U (en) Low opening and closing resistance butterfly valve
KR20090005589A (en) Butterfly valve of metal seat type
KR200311759Y1 (en) Butterfly valve

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee