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
  • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
  • F16K1/2266—Shaping or arrangements of the sealing the sealing being arranged on the valve seat and being forced into sealing contact with the valve member by a spring or a spring-like 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
  • F16J—PISTONS; CYLINDERS; SEALINGS
  • F16J15/00—Sealings
  • F16J15/02—Sealings between relatively-stationary surfaces
  • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
  • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
  • F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
  • F16J15/0893—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing the packing having a hollow profile
• • 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

Definitions

• the present invention provides a metal butterfly valve body provided in an inner periphery of a fluid passage in the valve body when a metal butterfly valve body provided in the fluid passage in the valve body is closed and rotated.
• the present invention relates to a metal touch type butterfly valve that is in direct contact with the valve seat ring member.
• this kind of metal touch type butterfly valve is, for example, described in Patent Document 1, Patent Document 2 or Patent Document 3 in a valve body having a fluid passage formed therein.
• a sealing surface is formed on the outer periphery of a metal butterfly valve body disposed in the fluid passage, and the butterfly valve body is disposed around a valve shaft that rotatably supports the valve body.
• the seal surface is rotated and closed by metal touching directly against the inner peripheral surface of the valve seat ring member fixed to the inner peripheral surface of the fluid passage in the valve body.
• the valve seat ring member is made of a metal plate with a radial direction perpendicular to the axis of the fluid passage as a flat surface.
• the valve seat ring member is attached to the inner peripheral surface of the fluid passage in the valve body on the outer periphery thereof, while the valve seat ring member is attached to the inner periphery of the valve seat ring member on the outer periphery thereof.
• a seal ring formed by curling a metal plate constituting the member into a pipe shape is provided so as to extend over the entire circumference in the circumferential direction.
• the seal ring portion is configured so that the seal surface of the butterfly valve body is in contact with the seal ring portion.
• valve seat ring member is provided between the outer peripheral mounting portion and the inner peripheral seal ring portion.
• a bulging portion formed by partially bulging and deforming the metal plate constituting the valve seat ring member is provided in the portion so as to extend over the entire circumference in the circumferential direction.
• the conventional valve seat ring member has a metal ring that curls the seal ring part where the seal surface of the butterfly valve body directly touches the metal at the inner periphery thereof.
• elasticity is imparted to the seal ring portion itself.
• the radial direction perpendicular to the axis of the fluid passage of the valve body follows the rotation of the butterfly valve body.
• Patent Document 1 Japanese Patent Laid-Open No. 2002-115766
• Patent Document 2 Japanese Utility Model Publication No. 3-77868
• Patent Document 3 Japanese Patent Laid-Open No. 54-67156
• the conventional valve seat ring member is formed into a plate-like ring body with a metal plate, and a bulging portion is provided between the inner periphery and the outer periphery.
• This bulge is designed to allow radial displacement in the inner seal ring. For this reason, not only is the radial shift movement distance in the seal ring part sufficient, but also a very large external force is required for the shift movement. Therefore, the sealing performance when the butterfly valve body is closed, and the butterfly valve There has been a problem that it is impossible to reliably achieve both the smoothness of rotation when the body is opened and closed.
• An object of the present invention is to provide a metal touch butterfly valve that solves this problem.
• claim 1 of the present invention provides:
• a valve body having a fluid passage formed therein, a metal butterfly valve body provided to rotate in the fluid passage in the valve body, and an outer peripheral surface of the butterfly valve body on the inner peripheral surface of the fluid passage.
• a butterfly valve comprising a valve seat ring member provided so as to be in contact with an S metal touch.
• the valve seat ring member is formed of a metal plate in a plate-like ring body whose radial direction is a plane, and is detachably attached to the inner peripheral surface of the fluid passage at the outer periphery thereof.
• the inner circumference of the valve seat ring member is formed in a cylindrical part formed by bending a metal plate toward the butterfly valve body, and the metal plate is curled into a pipe around the tip of the cylindrical part.
• a ring is provided, and the seal surface of the butterfly valve body is metal-touched to the seal ring.
• claim 2 of the present invention includes
• the base portion of the cylindrical portion of the valve seat ring member is formed in a round corner over the entire circumference.”
• claim 3 of the present invention provides
• a bulging portion formed by bulging and deforming a metal plate in a direction opposite to the cylindrical portion is formed at the base portion of the cylindrical portion of the valve seat ring member. To be enclosed.
• support ring bodies are disposed on both the outer periphery and the inner periphery of the tubular portion of the valve seat ring member.”
• the seal surface force on the outer periphery of the butterfly valve body of the valve seat ring member made of a metal plate is supported by the cylindrical portion of the valve seat ring member.
• the seal ring portion is in a state of metal touching the sealing surface of the butterfly valve body, and follows the rotation of the butterfly valve body to establish an axis line in the fluid passage of the valve body.
• the shift distance in the radial direction is larger than in the conventional case, and the external force required for this shift is also smaller than in the conventional case.
• FIG. 1 is a longitudinal front view showing a first embodiment of the present invention.
• FIG. 2 is a sectional view taken along line II-II in FIG.
• FIG. 3 is an enlarged view of the main part of FIG.
• FIG. 4 is an enlarged sectional view showing an exploded state of the valve seat ring member.
• FIG. 5 is a view showing a valve seat ring member according to a second embodiment.
• FIG. 6 is an enlarged sectional view showing a disassembled state of the valve seat ring member in the second embodiment.
• reference numeral 1 denotes a metal valve body formed in a cylindrical shape so as to form a fluid passage 2 therein
• reference numeral 3 denotes a metal butterfly disposed in the valve body 1. Each valve body is shown.
• the outer periphery of the butterfly valve body 3 is formed on a spherical sealing surface 4 having a radius R with the center point C on the axis 2a of the fluid passage 2 in the valve body 1, and the butterfly valve
• the body 3 is configured to be rotatable by pivotally supporting a pair of upper and lower valve shafts 5 and 6 fixed so as to extend in the vertical direction on the back surface thereof through the valve body 1.
• the center D of the valve shafts 5 and 6 is the center point C of the radius R on the spherical sealing surface 4 in plan view (Fig. 2). It is located at a part eccentric in the direction perpendicular to the axis 2a in the fluid passage 2 inside. Then, the butterfly valve body 3 is rotated around one of the valve shafts 5 and 6 around the valve shaft 5, and the sealing surface 4 on the outer periphery of the butterfly valve body 3 is moved to the valve body. 1 is closed by the so-called metal touch of contact and pressing against the metal valve seat ring member 7 provided in the fluid passage 2, while the valve shaft 5 rotates in the opposite direction. Configure to open by. As shown in FIGS.
• the valve seat ring member 7 is made of a soft metal such as copper or a copper alloy, or an axis of the fluid passage 2 with a metal plate such as stainless steel.
• a plate-shaped ring body having a plane that is perpendicular to the radius direction is formed, and on the outer periphery of the ring-shaped ring body, a mounting ring portion 8 is provided which is formed of a metal plate that is rolled into a pipe shape.
• the valve seat ring member 7 includes a receiving portion 9 in which a portion of the mounting ring portion 8 on the outer periphery thereof is integrally provided on the inner peripheral surface of the fluid passage 2 in the valve body 1, and the fluid passage 2
• the pressing ring body 10 is sandwiched between the pressing ring body 10 slidably inserted in the axial direction thereof, and in this state, the pressing ring body 10 is fixed to the receiving ring body 12 fixed in the fluid passage 2 by the retaining ring 11.
• valve main body 1 is detachably fixed to the inner peripheral surface of the fluid passage 2.
• the receiving ring body 12 is provided with a ring 14 for preventing loosening of each bolt 13 screwed into the receiving ring body 12.
• a cylindrical portion 15 formed by bending a metal plate in the direction of the axis 2a so as to face the butterfly valve body 3 is integrally provided on the inner periphery of the valve seat ring member 7.
• a seal ring portion 16 formed by curling a metal plate in the shape of a pipe is integrally provided around the tip of the portion 15 so that when the butterfly valve body 3 is closed and rotated on the seal ring portion 16,
• the fluid passage 2 is configured to be closed by four-cataly sealing on the outer periphery.
• the base portion of the cylindrical portion 15 of the valve seat ring member 7 is formed at a rounded corner 17 having a radius R1 over the entire circumference.
• a spring ring body 18 made of a coil spring formed by winding a spring wire in a coil shape is loaded inside the seal ring portion 16, and the pressure ring body 10 includes the valve seat ring.
• a ring-shaped groove 19 is provided that fits loosely so that the bulging portion 17 of the member 7 can be deformed in the radial direction.
• a support ring body 20 has a radius perpendicular to the axis 2a of the fluid passage 2 with respect to the receiving portion 9 in the valve body 1. While being fitted so that it can move in both the direction and the axial direction, A support ring body 21 integral with the pressing ring body 10 is inserted in the inner periphery.
• the seal ring portion 16 that metal touches the seal surface 4 on the outer periphery of the butterfly valve body 3 in the valve seat ring member 7 made of a metal plate is connected to the cylinder portion 15 of the valve seat ring member 7.
• the seal ring portion 16 follows the rotation of the butterfly valve body 3 in a state in which the seal ring portion 16 is in a metal touch with respect to the seal surface 4 of the butterfly valve body 3.
• the base portion of the cylindrical portion 15 is formed in the rounded corner 17 having the radius R1 over the entire circumference!
• the radial displacement distance of the seal ring 16 in the radial direction can be increased, the external force required for the displacement movement can be reduced, and the force of the endurance can be reduced by avoiding stress concentration at the base. Can be improved.
• the cylindrical portion 15 is supported by the support ring body 20 fitted on the outer periphery thereof and the support ring body 21 inserted on the inner periphery thereof, it is buckled by the displacement movement as described above. Deformation can be surely avoided.

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

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36601499

Family Applications (1)

Country Status (5)

Cited By (3)

Families Citing this family (6)

Citations (5)

• 2004
  • 2004-12-20 JP JP2004368234A patent/JP4387293B2/ja not_active Expired - Fee Related
• 2005
  • 2005-08-09 WO PCT/JP2005/014563 patent/WO2006067888A1/ja not_active Application Discontinuation
  • 2005-08-09 KR KR1020077011603A patent/KR20070094889A/ko not_active Ceased
  • 2005-08-09 CN CN2005800436147A patent/CN101084391B/zh not_active Expired - Lifetime
  • 2005-09-16 TW TW094132027A patent/TWI348007B/zh active

Patent Citations (5)

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