TWI757062B - Inner peripheral sealing structure, valve seat structure, and valve - Google Patents
Inner peripheral sealing structure, valve seat structure, and valve Download PDFInfo
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- TWI757062B TWI757062B TW110102367A TW110102367A TWI757062B TW I757062 B TWI757062 B TW I757062B TW 110102367 A TW110102367 A TW 110102367A TW 110102367 A TW110102367 A TW 110102367A TW I757062 B TWI757062 B TW I757062B
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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
- F16K1/46—Attachment of sealing rings
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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
- F16K1/16—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
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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
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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
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
本申請案發明之目的在於提供一種可減低用以關閉閥體之操作扭矩之內周密閉構造、閥座構造、及閥。 本發明將配備於蝶形閥10之閥座環12且自閥座環12之內周面12i凸出、負載流體壓力之閥體14之外周面14s抵接的內周密閉構造16,構成為具備可供閥體14之外周面14s抵接並停止之第1密閉面18(1)、限制閥體14旋轉之扣止凸部20、及可供外周面14s抵接並停止之扣止密閉面18(3),且構成為於因閥體14旋轉而使得閥體14之外周面14s移動之方向上,依序配置有第1密閉面18(1)、扣止密閉面18(3)、及扣止凸部20,並構成為扣止密閉面18(3)與第1密閉面18(1)相比,密閉量較大。 An object of the invention of the present application is to provide an inner peripheral sealing structure, a valve seat structure, and a valve that can reduce the operating torque for closing the valve body. In the present invention, the inner peripheral sealing structure 16 provided on the valve seat ring 12 of the butterfly valve 10 and protruding from the inner peripheral surface 12i of the valve seat ring 12 and abutting the outer peripheral surface 14s of the valve body 14 loaded with fluid pressure is constituted as The valve body 14 is provided with a first sealing surface 18 ( 1 ) that can abut and stop the outer peripheral surface 14s of the valve body 14 , a latching protrusion 20 that restricts the rotation of the valve body 14 , and a latching seal that can abut and stop the outer peripheral surface 14s surface 18(3), and the first sealing surface 18(1) and the latching sealing surface 18(3) are arranged in this order in the direction in which the outer peripheral surface 14s of the valve body 14 moves due to the rotation of the valve body 14 , and the locking convex portion 20, and the locking sealing surface 18(3) is configured to have a larger sealing amount than the first sealing surface 18(1).
Description
本申請案發明關於一種構成蝶形閥等閥之內周密閉構造、閥座構造、及閥。 The invention of the present application relates to an inner circumference sealing structure, a valve seat structure, and a valve that constitute a valve such as a butterfly valve.
先前以來,為封閉或開放流體之流動而使用蝶形閥(閥)。於圖7,作為一例,顯示蝶形閥100。蝶形閥100具備閥箱102、閥座環104、及閥體106。閥箱102與閥座環104彼此扣合組合。閥體106配置於閥座環104之流路108內。閥體106構成為繞旋轉中心C0旋轉。閥座環104於內周104i具有供閥體106抵接之凸面形狀之密閉部(內周密閉構造)110。
Historically, butterfly valves (valves) have been used to close or open the flow of fluids. In FIG. 7, the
閥體106於停止流體時,使閥體106旋轉至圖7所示之緊閉位置。蝶形閥100於緊閉位置處,使由不鏽鋼等金屬構成之閥體106之外周面106s進入由橡膠等彈性構件構成之閥座環104之密閉部110(於圖7中,以SW顯示進入之深度即密閉量)。為關閉閥體106而旋轉至緊閉位置時,需要抵抗來自密閉部110之作用力及流體壓力之操作扭矩。即,若SW加深且來自密閉部110之作用力變大,則操作扭矩變大。然而,若操作扭矩變大,則用以使閥體106旋轉之旋轉驅動機構之規模變大。另,存在蝶形閥之旋轉驅動機構相關之文獻(參照專利文獻1)。然而,未有與本申請案發明關聯者。
When the
專利文獻1:日本專利特開2003-185047號公報 Patent Document 1: Japanese Patent Laid-Open No. 2003-185047
本申請案發明之目的在於提供一種可減少用以關閉閥體之操作扭矩之內周密閉構造、閥座構造、及閥。 An object of the invention of the present application is to provide an inner peripheral sealing structure, a valve seat structure, and a valve that can reduce the operating torque for closing the valve body.
本申請案發明之內周密閉構造之特徵在於,其係配備於閥之閥座環且自該閥座環之內周面凸出、供負載流體壓力之閥體之外周面抵接者,且具備:第1密閉面,其為凹面形狀,可供上述閥體之上述外周面抵接並停止;扣止凸部,其供上述閥體扣止,限制該閥體之旋轉;及扣止密閉面,其於上述閥體扣止於上述扣止凸部時,供該閥體之上述外周面抵接;於因上述閥體旋轉從而該閥體之上述外周面移動之方向上,依序配置有上述第1密閉面、上述扣止密閉面、及上述扣止凸部;該內周密閉構造構成為,上述扣止密閉面與上述第1密閉面相比,上述閥體之上述外周面進入之深度較大。 The feature of the inner peripheral sealing structure of the invention of the present application is that it is provided on the valve seat ring, protrudes from the inner peripheral surface of the valve seat ring, and is in contact with the outer peripheral surface of the valve body for carrying fluid pressure, and It includes: a first sealing surface that is concave and that can be abutted and stopped by the outer peripheral surface of the valve body; a locking protrusion that is locked by the valve body and restricts the rotation of the valve body; When the valve body is locked on the locking convex portion, the outer peripheral surface of the valve body is in contact with the outer peripheral surface of the valve body; and the outer peripheral surface of the valve body is arranged in order in the direction in which the outer peripheral surface of the valve body moves due to the rotation of the valve body. The said 1st sealing surface, the said latching sealing surface, and the said latching convex part are provided, and the said inner peripheral sealing structure is comprised so that the said outer peripheral surface of the said valve body enters the area where the said latching sealing surface is compared with the said 1st sealing surface. greater depth.
又,本申請案發明之內周密閉構造之特徵在於,於上述內周密閉構造中,於因上述閥體旋轉從而該閥體之上述外周面移動之方向上,依序配置有上述第1密閉面、上述扣止密閉面、及上述扣止凸部。 Moreover, the inner peripheral sealing structure of the present invention is characterized in that, in the inner peripheral sealing structure, the first sealing structure is sequentially arranged in the direction in which the outer peripheral surface of the valve body moves due to the rotation of the valve body. surface, the above-mentioned locking sealing surface, and the above-mentioned locking protrusion.
又,本申請案發明之內周密閉構造之特徵在於,於上述內周密閉構造中,具備:第2密閉面,其為凹面形狀,可供上述閥體之上述 外周面抵接並停止,並與上述第1密閉面連續;且於因上述閥體旋轉從而該閥體之上述外周面移動之方向上,依序配置有上述第1密閉面、上述第2密閉面、上述扣止密閉面、及上述扣止凸部;構成為上述第2密閉面與上述第1密閉面相比,密閉量較大;構成為上述扣止密閉面與上述第2密閉面相比,密閉量較大。 In addition, the inner peripheral sealing structure of the invention of the present application is characterized in that, in the inner peripheral sealing structure, the inner peripheral sealing structure is provided with a second sealing surface having a concave shape, which can be used for the above-mentioned valve body. The outer peripheral surface abuts and stops, and is continuous with the first sealing surface; and the first sealing surface and the second sealing surface are sequentially arranged in the direction in which the outer peripheral surface of the valve body moves due to the rotation of the valve body. surface, the locking sealing surface, and the locking protrusion; the second sealing surface is configured so that the sealing amount is larger than that of the first sealing surface; The amount of sealing is large.
又,本申請案發明之閥座構造之特徵在於,其係配備於閥之閥座環者,且具備:上述技術方案1或2之內周密閉構造;閥座側閥棒孔,其供構成上述閥體之旋轉中心之閥棒插入;閥座側抵接面,其設置於上述閥座側閥棒孔之周邊,供上述閥體所具有之閥體側閥棒孔之周邊之閥體側抵接面抵接;連續第1密閉面,其與上述第1密閉面連續,且延伸至上述閥座側抵接面;連續扣止凸部,其與上述扣止凸部連續,且延伸至上述閥座側抵接面;及連續扣止密閉面,其與上述扣止密閉面連續,且延伸至上述閥座側抵接面;且上述連續第1密閉面、上述連續扣止凸部、及連續扣止密閉面具有如下形狀:當對於上述閥體之上述外周面與閥體側抵接面之間所連接之閥體連接面之側邊抵接時,其整體密接。
In addition, the valve seat structure of the invention of the present application is characterized in that it is provided in a valve seat ring of a valve, and includes: the inner circumference sealing structure of the above-mentioned
又,本申請案發明之閥之特徵在於包含上述內周密閉構造。 Moreover, the valve of the invention of the present application is characterized by including the above-mentioned inner peripheral sealing structure.
根據本申請案發明之內周密閉構造,因與可使閥體之外周面抵接並停止之扣止密閉面分開,具備可使閥體之外周面抵接並停止之第1密閉面,故可將操作扭矩設定為,不以密閉量較第1密閉面更大之扣止密閉面停止,而以密閉量較小且來自閥座環之作用力更小之第1密閉面停止。藉此,可藉由更小之操作扭矩使閥體旋轉並關閉,且可減少操作扭矩。因此,可縮小用以使閥體旋轉之旋轉驅動機構之規模。另,於流體壓力較小之情形,即便以密閉量較小之第1密閉面停止,亦可維持密閉性能。藉此,即便減少用以關閉閥體之操作扭矩,亦可維持密閉性能。 According to the inner peripheral sealing structure of the invention of the present application, since it is separated from the latching sealing surface that can abut and stop the outer peripheral surface of the valve body, and has a first sealing surface that can abut and stop the outer peripheral surface of the valve body, The operating torque can be set so as not to stop at the latching sealing surface with a larger sealing amount than the first sealing surface, but at the first sealing surface with a smaller sealing amount and a smaller force from the seat ring. Thereby, the valve body can be rotated and closed with a smaller operating torque, and the operating torque can be reduced. Therefore, the scale of the rotary drive mechanism for rotating the valve body can be reduced. In addition, when the fluid pressure is low, even if it stops at the first sealing surface with a small sealing amount, the sealing performance can be maintained. Thereby, even if the operating torque for closing the valve body is reduced, the sealing performance can be maintained.
10:蝶形閥(閥) 10: Butterfly valve (valve)
12:閥座環 12: Seat Ring
12i:內周面 12i: inner peripheral surface
14:閥體 14: valve body
14s:外周面 14s: Peripheral surface
16:內周密閉構造 16: Inner perimeter airtight structure
18(1):第1密閉面 18(1): 1st airtight surface
18(1)ex:連續第1密閉面 18(1)ex: Consecutive first airtight surface
18(2):第2密閉面 18(2): Second airtight surface
18(2)ex:連續第2密閉面 18(2)ex: 2nd consecutive airtight surface
18(3):扣止密閉面 18(3): Buckle the airtight surface
18(3)ex:連續扣止密閉面 18(3)ex: Continuously buckle the sealing surface
19:密閉面 19: Airtight surface
20:扣止凸部 20: Buckle the convex part
20ex:連續扣止凸部 20ex: Continue to buckle the convex part
22:閥棒 22: valve rod
24:閥座側閥棒孔 24: Valve rod hole on the seat side
26:閥體側閥棒孔 26: Valve rod hole on the valve body side
28:閥體側抵接面 28: Valve body side contact surface
28CC:凹曲面 28CC: Concave Surface
28CV:閥座凸部 28CV: Seat projection
30:閥座側抵接面 30: Seat side contact surface
30S:外周面 30S: Outer peripheral surface
31:閥座連接面 31: Seat connection surface
32:閥體連接面 32: Valve body connection surface
32si:側邊 32si: side
33:閥座側抵接面 33: Seat side contact surface
34:閥座構造 34: Valve seat structure
35:連接部 35: Connection part
100:蝶形閥 100: Butterfly valve
102:閥箱 102: valve box
104:閥座環 104: Seat Ring
104i:內周 104i: Inner Week
106:閥體 106: valve body
106s:外周面 106s: Peripheral surface
108:流路 108: Flow Path
110:密閉部 110: Airtight part
112:連接部 112: Connection part
112or:形狀 112or: shape
112ov:形狀 112ov: Shape
113:密閉面 113: Airtight surface
114:閥箱 114: valve box
140:固定機構 140:Fixed mechanism
300:閥座部 300: valve seat
C0:旋轉中心 C0: center of rotation
C1:旋轉中心 C1: center of rotation
DL:緊閉位置 DL: Closed position
P0~P5:交點 P0~P5: Intersection point
R0:間距圓 R0: Spacing circle
R1:旋轉軌跡圓 R1: Rotation track circle
R2~R5:間距圓 R2~R5: Spacing circle
r1:半徑 r1: radius
ST0:直線 ST0: Straight line
ST1~ST5:間距直線 ST1~ST5: Spacing straight line
SW0~SW4:密閉量 SW0~SW4: Airtight quantity
VS:密閉線(閥座) VS: Closed Line (Valve Seat)
VS:閥座脊線 VS: Seat Ridgeline
θ:閥體之旋轉角度 θ: Rotation angle of valve body
θ1:角度 θ1: angle
圖1係顯示本申請案發明之內周密閉構造之俯視圖。 FIG. 1 is a top view showing the inner peripheral airtight structure of the invention of the present application.
圖2係用以說明圖1所示之內周密閉構造之俯視剖視圖,同圖(a)係顯示閥體即將抵接於閥座環之狀態之圖,同圖(b)係顯示閥體抵接於第1密閉面之狀態之圖,同圖(c)係顯示閥體抵接於第2密閉面之狀態之圖,同圖(d)係顯示閥體扣止於扣止凸部之狀態之圖。 Fig. 2 is a top sectional view for explaining the inner peripheral sealing structure shown in Fig. 1, the same figure (a) is a view showing the state that the valve body is about to abut against the valve seat ring, and the same figure (b) is a view showing the valve body abutting against the valve seat ring. The same figure (c) shows the state that the valve body is in contact with the second sealing surface, and the same figure (d) shows the state that the valve body is locked on the locking protrusion. map.
圖3之同圖(a)係顯示本申請案發明之閥座構造之立體圖,同圖(b)係顯示閥體之立體圖。 The same figure (a) of FIG. 3 is a perspective view showing the valve seat structure of the invention of the present application, and the same figure (b) is a perspective view showing the valve body.
圖4係顯示具備本申請案發明之內周密閉構造及閥座構造之閥之一例之前視剖視圖。 FIG. 4 is a front cross-sectional view showing an example of a valve having an inner peripheral sealing structure and a valve seat structure according to the invention of the present application.
圖5係用以說明密閉面為凹曲面形狀之作用效果之圖,同圖(a)係顯示本申請案發明之密閉面之概略俯視圖,同圖(b)係顯示先前技術之密閉面之概略俯視圖,同圖(c)係關於密閉量,比較本申請案發明之密閉面與先 前技術之密閉面的圖表。 Fig. 5 is a diagram for explaining the effect of the sealing surface being a concave curved surface shape, the same figure (a) is a schematic top view of the sealing surface of the invention of the present application, and the same figure (b) is a schematic diagram of the sealing surface of the prior art The top view, the same figure (c) is about the amount of airtightness, comparing the airtight surface of the invention of the present application with the previous one. Diagram of the airtight face of the previous technology.
圖6係用以說明內周密閉構造(密閉部)與閥座側抵接面之連接部之作用效果之圖,同圖(a)係顯示本申請案發明之連接部之概略立體圖,同圖(b)係顯示先前技術之連接部之概略立體圖。 6 is a diagram for explaining the effect of the connecting portion between the inner peripheral sealing structure (sealing portion) and the contact surface on the valve seat side, the same figure (a) is a schematic perspective view showing the connecting portion of the invention of the present application, the same figure (b) is a schematic perspective view showing the connection part of the prior art.
圖7係顯示先前之閥之前視剖視圖。 Figure 7 is a front sectional view showing the previous valve.
圖8係顯示本申請案發明之閥座環之其他實施形態之A-A線切斷部剖視圖。 FIG. 8 is a cross-sectional view of the cut-off portion along the line A-A showing another embodiment of the valve seat ring according to the present invention.
圖9係用以說明圖8所示之閥座環之凹曲面之形成方法之一例之概念圖。 FIG. 9 is a conceptual diagram for explaining an example of a method of forming the concave curved surface of the valve seat ring shown in FIG. 8 .
關於本申請案發明之內周密閉構造、閥座構造、及蝶形閥(閥)之實施形態,基於圖式進行說明。於圖1~圖4中,符號16係本申請案發明之內周密閉構造。於圖3及圖4中,符號34係本申請案發明之閥座構造。於圖2及圖4中,符號10為本申請案發明之蝶形閥。
Embodiments of the inner peripheral sealing structure, the valve seat structure, and the butterfly valve (valve) according to the invention of the present application will be described based on the drawings. In Figs. 1 to 4,
(構成) (constitute)
蝶形閥10如圖2所示,具備閥箱114、及與閥箱114組合之閥座環12。閥箱114例如由鋁(純鋁或鋁合金)形成。閥箱114亦可由鋁以外之金屬形成。閥座環12亦可由例如EPDM(乙烯丙烯橡膠)或NBR(丁腈橡膠)形成,且由其他橡膠或樹脂形成。又,蝶形閥10具備:閥體14,其配置於閥座環12內;及2條閥棒22(圖3(b)所示),其固定於閥體14之上部及下部。閥體14為大致圓盤形狀或大致圓板形狀。閥體14例如由不鏽鋼形成。閥體14亦可由不鏽鋼以外之金屬形成。閥體14於上部及下部中,具備插入閥棒22並固定之閥體側閥棒孔26(圖3(b)所示)。閥棒22亦可由不鏽鋼形成,
且由不鏽鋼以外之金屬形成。閥棒22可旋轉地貫通於閥箱114及閥座環12之閥座側閥棒孔24(圖3(a)所示)。蝶形閥10具備連結於閥箱114且固定於具有旋轉驅動機構之閥驅動部(未圖示)之固定機構140(圖4所示)。固定機構140由例如鋁形成,亦可由鋁以外之金屬形成。
As shown in FIG. 2 , the
(內周密閉構造(密閉部)16) (Inner peripheral sealing structure (sealing part) 16)
閥座環12如圖1所示,具備自閥座環12之內周面12i凸出、供負載流體壓力之閥體14之外周面14s抵接的內周密閉構造16。內周密閉構造16如圖4所示,於前視時,配備於閥座環12之左右2部位(以旋轉中心C1為對稱軸之對稱位置)。內周密閉構造16具備:第1密閉面18(1),其可供閥體14之外周面14s抵接並停止;及第2密閉面18(2),其供閥體14之外周面14s抵接並停止,且與上述第1密閉面18(1)連續。第1密閉面18(1)及第2密閉面18(2)為了盡可能減少密閉量,而具有凹曲面形狀。又,內周密閉構造16具備:扣止密閉面18(3),其供閥體14之外周面14s抵接並停止,且與第2密閉面18(2)連續;及扣止凸部20,其供閥體14之外周面14s扣止,限制閥體14之旋轉。閥體14之外周面14s構成為藉由扣止於扣止凸部20,而可抵接於扣止密閉面18(3)並停止。又,內周密閉構造16於因閥體14旋轉從而閥體14之外周面14s移動之方向上,依序配置有第1密閉面18(1)、第2密閉面18(2)、扣止密閉面18(3)、及扣止凸部20。
As shown in FIG. 1 , the
於內周密閉構造16中構成為,扣止密閉面18(3)與第1密閉面18(1)相比,閥體14之外周面14s進入之深度即密閉量(第1密閉面18(1)之密閉量:SW1,扣止密閉面之密閉量:SW3)較大。再者,構成為,第2密閉面18(2)與第1密閉面18(1)相比,密閉量(第2密閉面18(2)之密閉量:SW2)較大。再者,構成為,扣止密閉面18(3)與第2密閉面18(2)相比,密
閉量較大。即,來自閥座環12之作用力按照因第1密閉面18(1)而停止、因第2密閉面18(2)而停止、因扣止密閉面18(3)而停止之順序而變大。因此,用以關閉閥體14之操作扭矩,按照因第1密閉面18(1)而停止、因第2密閉面18(2)而停止、因扣止密閉面18(3)而停止之順序而變大。
In the inner
(閥座構造34) (Valve seat structure 34)
閥座環12如圖3所示,具備包含2個(前視時為左右)內周密閉構造16之閥座構造34。於圖3(a)中,顯示旋轉中心C1以外之1點鏈線於密閉面之情形顯示中心線(谷線),於凸部之情形顯示脊線。又,於圖3(a)中,點線為顯示內周密閉構造16與後述之閥座連接面31之邊界的線。於圖3(b)中,點線為顯示閥體14之外周面14s與後述之閥體連接面32之邊界之線,2點鏈線為顯示閥體連接面32與後述之閥體側抵接面28之邊界之線。閥座構造34配備於圖4中之閥座環12之上部側及下部側之2部位。
As shown in FIG. 3 , the
閥座構造34如圖3(a)所示,具備供構成閥體14之旋轉中心C1之閥棒22插入之閥座側閥棒孔24。又,閥座構造34具備設置於閥座側閥棒孔24之周邊且使閥體14具有之閥體側閥棒孔26之周邊之閥體側抵接面28抵接之閥座側抵接面30。另,於圖3(a)中顯示閥座側抵接面30之虛線之範圍內為抵接於閥體側抵接面28之範圍。又,閥座構造34具備:連續第1密閉面18(1)ex,其連續於第1密閉面18(1),且延伸至閥座側抵接面30;及連續第2密閉面18(2)ex,其連續於第2密閉面18(2),且延伸至閥座側抵接面30。又,閥座構造34具備:連續扣止密閉面18(3)ex,其連續於扣止密閉面18(3),且延伸至閥座側抵接面30;及連續扣止凸部20ex,其連續於扣止凸部20,且延伸至閥座側抵接面30。連續第1密閉面18(1)ex、連續第2密閉面18(2)ex、連續扣止密閉面18(3)ex、及連續扣止凸部20ex
具有相對於閥體14之外周面14s與閥體側抵接面28之間所連接之閥體連接面32之彎曲形狀之側邊32si,於抵接時整體密接的彎曲形狀。連續第1密閉面18(1)ex、連續第2密閉面18(2)ex、及連續扣止密閉面18(3)ex之密閉量隨著接近閥座側抵接面30而變小。
As shown in FIG. 3( a ), the
(作用及效果) (action and effect)
(內周密閉構造16) (Inner peripheral airtight structure 16)
關於本申請案發明之蝶形閥10之內周密閉構造16之作用及效果,根據圖1及圖2,於以下進行說明。於內周密閉構造16中,為關閉閥體14所需之操作扭矩按密閉量變大之順序,即密閉量最小之SW1即第1密閉面18(1)、密閉量較SW1更大且較SW3更小之第2密閉面18(2)、密閉量最大之SW3即扣止密閉面18(3)之順序變大。又,流體壓力越大,密閉量必須越大。因此,例如可將操作扭矩設定為,於流體壓力為0.5MPa之情形,以第1密閉面18(1)使閥體14之外周面14s停止並關閉閥體14,於流體壓力為1.0MPa之情形,以第2密閉面18(2)使閥體14之外周面14s停止並關閉閥體14,於流體壓力超過1.0MPa之情形,以扣止密閉面18(3)使閥體14之外周面14s停止並關閉閥體14。於將操作扭矩設定為以第1密閉面18(1)使閥體14之外周面14s停止並關閉閥體14之情形,操作扭矩變得最小。因此,可藉由較小之操作扭矩關閉閥體14,且可縮小閥體之旋轉驅動機構之規模。又,藉由使閥體14之外周面14s抵接於較小之密閉量SW1之第1密閉面18(1),可謀求閥座環12及閥體14之高壽命化。此時,密閉量SW1最小,但因閥體14受到之流體壓力為最小之0.5MPa,故足夠維持密閉性能。藉此,可藉由較小之操作扭矩關閉閥體14,且維持密閉性能。
The function and effect of the inner
又,根據內周密閉構造16,流體壓力為1.0MPa,將操作
扭矩設定為以第2密閉面18(2)使閥體14之外周面14s停止並關閉閥體14之情形,與將操作扭矩設定為以扣止密閉面18(3)使閥體14之外周面14s停止並關閉閥體14之情形相比,亦可藉由較小之操作扭矩關閉閥體14。又,根據內周密閉構造16,作為與以扣止密閉面18(3)使閥體14之外周面14s停止並關閉閥體14之情形相比,以較小之操作扭矩關閉閥體14用之方法,可選擇第1密閉面18(1)或第2密閉面18(2)之任一者。又,根據內周密閉構造16,於流體壓力為超過1.0MPa之高壓之情形,作為使閥體14之外周面14s停止並關閉閥體14之位置,可選擇扣止密閉面18(3)。此時,即便產生設想外之較大之操作扭矩,閥體14亦扣止於扣止凸部20而停止,且閥體14不會自扣止密閉面18(3)脫離。
Moreover, according to the inner
又,於閥體14超限運轉且扣止於扣止凸部20並以扣止密閉面18(3)停止時,密閉量(閥體14壓潰內周密閉構造16之量,即閥體14進入之深度)較大,密閉性能提高。但,相應地,操作扭矩變大。即,若以設定之操作扭矩使閥體14旋轉,則可維持密閉性能。於閥體開度之調整作業中,不必顧慮閥體14通過並超出密閉部,而提高作業性。又,密閉性能因內周密閉構造16之磨耗等(於圖5(a)顯示磨耗後之密閉面19)下降。此時,如圖5(a)中2點鏈線所示,藉由調整為沿關閉閥體14之方向,使閥體14較緊閉位置過量旋轉(驅動部之擋止件之調整等),而容易期待密閉性能之恢復。因此,可增加產品壽命。另,先前技術時,為增加產品壽命,必須以即便磨耗亦可維持密閉性能之方式,預先設定較大之密閉量。例如,如圖5(b)中2點鏈線所示,為形成更大之密閉面113,必須預先設定較大之密閉量。因此,必要之操作扭矩變大。
In addition, when the
又,根據內周密閉構造16,因沿藉由閥體14之旋轉而使閥
體14之外周面14s移動之方向,依序配置有第1密閉面18(1)、第2密閉面18(2)、扣止密閉面18(3)、及扣止凸部20,故將操作扭矩設定為以第1密閉面18(1)使閥體14停止之情形,閥體14之外周面14s確實地抵接於第1密閉面18(1)並停止。即,不存在閥體14觸碰扣止凸部20而停止,外周面14s未到達第1密閉面18(1)的情況。
In addition, according to the inner
此處,基於圖5於以下說明密閉面為凹曲面形狀之作用效果。於圖5中,X軸顯示閥體之外周面之移動量。於圖5(a)及(b)中,傾斜陰影線之部分為閥座環之密閉部中由閥體壓潰之部分。於圖5(c)中,Y軸顯示密閉量。於圖5(c)中,實線顯示本申請案發明中之密閉量之變化,2點鏈線顯示先前技術中之密閉量之變化。於圖5中,DL為緊閉位置。如圖5(c)所示,本申請案發明之情形,密閉量逐漸增大。與此相對,先前技術之情形,密閉量自0點急遽增大。因此,本申請案發明與先前技術相比,密閉部之壓潰總量較少,用以使閥體旋轉且關閉之操作扭矩變少。 Here, based on FIG. 5, the effect of the sealing surface being a concave curved surface shape will be described below. In Fig. 5, the X-axis shows the movement amount of the outer peripheral surface of the valve body. In FIGS. 5( a ) and ( b ), the oblique hatched portion is the portion crushed by the valve body in the sealing portion of the valve seat ring. In Fig. 5(c), the Y-axis shows the sealing amount. In FIG. 5( c ), the solid line shows the change of the sealing amount in the invention of the present application, and the 2-dot chain line shows the change of the sealing amount in the prior art. In Figure 5, DL is the tightly closed position. As shown in FIG. 5( c ), in the case of the invention of the present application, the sealing amount is gradually increased. On the other hand, in the case of the prior art, the amount of airtightness increases abruptly from 0 point. Therefore, compared with the prior art, the invention of the present application reduces the total amount of crushing of the sealing portion, and reduces the operating torque for rotating and closing the valve body.
(閥座構造34) (Valve seat structure 34)
關於本申請案發明之蝶形閥10之閥座構造34之作用及效果,基於圖3,於以下進行說明。如上述所示,連續第1密閉面18(1)ex、連續第2密閉面18(2)ex、連續扣止密閉面18(3)ex、及連續扣止凸部20ex具有相對於閥體14之外周面14s與閥體側抵接面28之間所連接之閥體連接面32之彎曲形狀之側邊32si,於抵接時整體密接的彎曲形狀。因此,於將閥體14設定為抵接於第1密閉面18(1)且關閉之情形,閥體14之側邊32si抵接於閥座環12之連續第1密閉面18(1)ex。即,彎曲形狀之側邊32si之整體抵接於彎曲形狀之連續第1密閉面18(1)ex。此時,閥體連接面32抵接於閥座連接面31。藉此,可擴大閥體14與閥座環12之抵接面積,並提高密閉性能。又,閥
體14之側邊32si以特定密閉量進入連續第1密閉面18(1)ex。因此,可提高密閉性能。於將閥體14設定為抵接於第2密閉面18(2)且關閉之情形、及將閥體14設定為抵接於扣止密閉面18(3)且關閉之情形,皆同樣可提高閥體14之側邊32si近邊與閥座側抵接面30之密閉性能。尤其,於設定為抵接於扣止密閉面18(3)且關閉之情形,因閥體14之側邊32si之整體抵接於連續扣止凸部20,故可進而擴大抵接面積,並進而提高密閉性能。
The function and effect of the
接著,基於圖6,說明本申請案發明之閥座構造34中之內周密閉構造(密閉部)16與閥座側抵接面30之連接部35之作用效果。於圖6(a)中,以傾斜陰影線顯示連接部35。於圖6(b)中,以傾斜陰影線顯示連接部112。於圖6(a)中,以2點鏈線顯示密閉線(閥座)VS。於圖6(b)中,以2點鏈線顯示閥座脊線VS。本申請案發明之閥座構造34因內周密閉構造16及閥座側抵接面30同為凹形狀,故於連接部35中,可平滑地連接內周密閉構造16及閥座側抵接面30之形狀。因此,於連接部35中無需額外之操作扭矩。與此相對,先前技術中,如圖6(b)所示,密閉部110為凸形狀,與此相對,閥座側抵接面114為凹形狀。因此,於連接部112,需要自凸向凹之切換部。因此,為將密閉部110之形狀與閥座側抵接面114之形狀平滑地連接,需要較理論上所需形狀112or寬度更大之形狀112ov。藉此,所需之操作扭矩變大。又,因該切換部容易成為密閉性能不良之設計上之原因,故需要以實機確認密閉性能等之作業。因此,於先前技術中,花費了較多之開發工時。然而,本申請案發明無需此種作業,使得開發容易化。
Next, based on FIG. 6 , the function and effect of the inner peripheral sealing structure (sealing portion) 16 and the connecting
又,於本申請案發明之閥座環12中,供閥體14之外周面30S抵接之閥座部300亦可如圖8及圖9所示,於閥體14側具有凹曲面
28CC。該情形時,閥體14構成為繞閥棒之旋轉中心C1順時針旋轉,外周面30S抵接於凹曲面28CC,於外周面30S進入凹曲面28CC之密閉量SW逐漸增大後,於圖8所示之密閉位置停止。密閉位置意指原先旋轉之閥體14因來自閥座凸部28CV之抵抗力而完全停止的位置。密閉位置係由閥體14之旋轉扭矩、閥座環12之彈性係數、及閥座凸部28CV之尺寸而定。如為圖8所示之閥座部300,外周面30S進入凹曲面28CC之密閉量SW逐漸增大,因來自凹曲面28CC之抵抗力使得閥體14之旋轉速度逐漸減少,且在充分減少之狀態下,於密閉位置停止。因此,可使閥體14確實地於密閉位置停止。
In addition, in the
以下說明該凹曲面28CC之形成方法之一例。於CAD(Computer Aided Design:電腦輔助設計)畫面中,首先描畫例如閥體之外周面之旋轉軌跡圓R1,且描畫相對於旋轉軌跡圓R1、半徑以一定間距變小之複數個間距圓。又,描畫通過旋轉中心C1、與在密閉位置處外周面與凹曲面相接之點的直線ST0,且描畫相對於直線ST0以一定角度間距逆時針旋轉之、通過旋轉中心C1之複數條間距直線。接著,自旋轉軌跡圓R1及間距圓、與直線ST0及間距直線之交點中,選擇可形成凹曲面之特定交點。描畫通過所選擇之交點之樣條曲線,該樣條曲線即為凹曲面28CC。 An example of a method for forming the concave curved surface 28CC will be described below. In the CAD (Computer Aided Design) screen, firstly draw a rotation track circle R1 such as the outer peripheral surface of the valve body, and draw a plurality of space circles whose radius is reduced at a certain distance relative to the rotation track circle R1. In addition, a straight line ST0 passing through the rotation center C1 and the point where the outer peripheral surface and the concave curved surface meet the concave curved surface at the sealed position are drawn, and a plurality of pitched straight lines passing through the rotation center C1 and rotated counterclockwise at a certain angular pitch with respect to the straight line ST0 are drawn. . Next, from among the intersections of the rotation locus circle R1 and the pitch circle, and the straight line ST0 and the pitch straight line, a specific intersection point that can form a concave curved surface is selected. Draw a spline curve passing through the selected intersection point, the spline curve is the concave surface 28CC.
根據圖9,以下具體說明凹曲面28CC之形成方法之一例。將以閥體14之旋轉中心C1為中心之旋轉軌跡圓R1之半徑設為r1。首先,描畫旋轉軌跡圓R1。接著,描畫相對於旋轉軌跡圓R1,半徑以d mm(例如1mm)間距變小之複數個圓。即,描畫半徑r1-d mm之間距圓R2、半徑r1-2‧d mm之間距圓R3、半徑r1-3‧d mm之間距圓R4、半徑r1-4‧d
mm之間距圓R5、及半徑r1-5‧d mm之間距圓R0。描畫各圓之順序未限定。
An example of a method for forming the concave curved surface 28CC will be specifically described below with reference to FIG. 9 . Let the radius of the rotation locus circle R1 centered on the rotation center C1 of the
閥體14位於密閉位置時,設為θ(閥體14之旋轉角度)=0°。描畫通過旋轉中心C1、與密閉位置處外周面30S相接於凹曲面28CC之點P0的直線ST0。接著,描畫相對於ST0,逆時針以角度θ1(例如3°)間距旋轉之通過旋轉中心C1之複數條間距直線。即,描畫θ=0時之通過C1之直線ST0、θ=-θ1時之間距直線ST5、θ=-2‧θ1時之間距直線ST4、θ=-3‧θ1時之間距直線ST3、θ=-4‧θ1時之間距直線ST2、及θ=-5‧θ1時之間距直線ST1。描畫各直線之順序未限定。
When the
將ST1與旋轉軌跡圓R1之交點P5、ST2與R2之交點P4、ST3與R3之交點P3、ST4與R4之交點P2、ST5與R5之交點P1、及ST0與R0之交點P0繪圖。接著,描畫通過該等交點P5等之樣條曲線。該樣條曲線成為凹曲面28CC。P5為閥體14之外周面30S開始相接於閥座環12之凹曲面28CC之點。於P5,密閉量SW0=0mm,於P4,密閉量SW4=1‧d mm,於P3,密閉量SW3=2‧d mm,於P2,密閉量SW2=3‧d mm,於P1,密閉量SW1=4‧d mm,於P0,密閉量SW0=5‧d mm。以上,說明凹曲面28CC之形成方法之一例,但凹曲面28CC之形成方法未限定。
The intersection P5 of ST1 and the rotation locus circle R1, the intersection P4 of ST2 and R2, the intersection P3 of ST3 and R3, the intersection P2 of ST4 and R4, the intersection P1 of ST5 and R5, and the intersection P0 of ST0 and R0 are drawn. Next, a spline curve passing through these intersection points P5 and the like is drawn. This spline curve becomes a concave surface 28CC. P5 is the point at which the outer
以上,對本申請案發明之實施形態進行了說明,但本申請案發明未限定於上述實施形態,可於產生相同作用及效果之範圍內施加適當變更而實施。例如,本申請案發明之閥未限定於蝶形閥,閥種類未限定。又,於本申請案發明之蝶形閥,包含一軸偏心、二軸偏心及三軸偏心者。又,亦可為僅具備第1密閉面18(1)及第2密閉面18(2)之任一者之構成。此時,藉由將操作扭矩設定為以第1密閉面18(1)及第2密閉面18(2)之
任一者關閉閥體14,可以較由扣止密閉面18(3)關閉之情況更小之操作扭矩關閉。又,亦可藉由第1密閉面18(1)、第2密閉面18(2)、及扣止密閉面18(3)形成凹面。
The embodiments of the invention of the present application have been described above, but the invention of the present application is not limited to the above-described embodiments, and can be implemented with appropriate modifications within the scope of producing the same functions and effects. For example, the valve of the present invention is not limited to a butterfly valve, and the type of valve is not limited. In addition, the butterfly valve invented in this application includes one-axis eccentric, two-axis eccentric and three-axis eccentric. Moreover, the structure provided with only one of the 1st sealing surface 18(1) and the 2nd sealing surface 18(2) may be sufficient. At this time, by setting the operating torque to the difference between the first sealing surface 18(1) and the second sealing surface 18(2)
Either one closes the
12:閥座環
12i:內周面
14:閥體
14s:外周面
16:內周密閉構造
18(1):第1密閉面
18(2):第2密閉面
18(3):扣止密閉面
20:扣止凸部
SW1~SW3:密閉量
12:
Claims (5)
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JP2020125325A JP6871655B1 (en) | 2020-07-22 | 2020-07-22 | Inner circumference seal structure, seat structure, and valve |
JP2020-125325 | 2020-07-22 |
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TW202204793A TW202204793A (en) | 2022-02-01 |
TWI757062B true TWI757062B (en) | 2022-03-01 |
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TW110102367A TWI757062B (en) | 2020-07-22 | 2021-01-21 | Inner peripheral sealing structure, valve seat structure, and valve |
Country Status (6)
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JP (1) | JP6871655B1 (en) |
KR (1) | KR102529296B1 (en) |
CN (1) | CN115605698A (en) |
PH (1) | PH12021550080A1 (en) |
TW (1) | TWI757062B (en) |
WO (1) | WO2022018878A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07151243A (en) * | 1993-12-01 | 1995-06-13 | O K M:Kk | Butterfly valve |
CN202109011U (en) * | 2011-05-16 | 2012-01-11 | 天津市滨海新区塘沽于庄橡胶厂 | Butterfly valve seat |
TWM465497U (en) * | 2013-05-07 | 2013-11-11 | Jakiflow Corp | Self-regulating new-torq type resilient valve seat based on pressure changes |
US20180080566A1 (en) * | 2015-04-09 | 2018-03-22 | Internation Valve Works Sl | Butterfly Valve With Improved Seat Ring Providing Instant Valve Closing And Uniformly Increasing Sealing |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2848798B2 (en) * | 1995-05-15 | 1999-01-20 | 昌良 山田 | Butterfly valve seat ring |
JP3045671B2 (en) * | 1996-08-30 | 2000-05-29 | 株式会社巴技術研究所 | Butterfly valve seat ring |
JP2003014139A (en) * | 2001-07-04 | 2003-01-15 | Okm:Kk | Butterfly valve |
JP3756113B2 (en) | 2001-12-18 | 2006-03-15 | 株式会社巴技術研究所 | Butterfly valve switching device |
KR100800966B1 (en) * | 2007-05-03 | 2008-02-05 | 정근수 | Butterfly valve |
-
2020
- 2020-07-22 JP JP2020125325A patent/JP6871655B1/en active Active
- 2020-10-27 KR KR1020207038102A patent/KR102529296B1/en active IP Right Grant
- 2020-10-27 WO PCT/JP2020/040312 patent/WO2022018878A1/en active Application Filing
- 2020-10-27 CN CN202080003602.6A patent/CN115605698A/en active Pending
-
2021
- 2021-01-13 PH PH12021550080A patent/PH12021550080A1/en unknown
- 2021-01-21 TW TW110102367A patent/TWI757062B/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07151243A (en) * | 1993-12-01 | 1995-06-13 | O K M:Kk | Butterfly valve |
CN202109011U (en) * | 2011-05-16 | 2012-01-11 | 天津市滨海新区塘沽于庄橡胶厂 | Butterfly valve seat |
TWM465497U (en) * | 2013-05-07 | 2013-11-11 | Jakiflow Corp | Self-regulating new-torq type resilient valve seat based on pressure changes |
US20180080566A1 (en) * | 2015-04-09 | 2018-03-22 | Internation Valve Works Sl | Butterfly Valve With Improved Seat Ring Providing Instant Valve Closing And Uniformly Increasing Sealing |
Also Published As
Publication number | Publication date |
---|---|
PH12021550080A1 (en) | 2021-09-13 |
KR20220012782A (en) | 2022-02-04 |
JP6871655B1 (en) | 2021-05-12 |
TW202204793A (en) | 2022-02-01 |
KR102529296B1 (en) | 2023-05-03 |
CN115605698A (en) | 2023-01-13 |
WO2022018878A1 (en) | 2022-01-27 |
JP2022021630A (en) | 2022-02-03 |
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