Valve with the device enhancing capability of its closure member and related seat ring to resist erosion
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0301024
(2006-05-15)
|
등록번호 |
US-8556226
(2013-10-15)
|
국제출원번호 |
PCT/CN2006/000980
(2006-05-15)
|
§371/§102 date |
20081115
(20081115)
|
국제공개번호 |
WO2007/131388
(2007-11-22)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
There is a closure member for rotating or reciprocating movement between upstream and downstream passageways of a valve. A device, which consists of two or more elongated tubes whose cross sections form up into one or more files in moving direction of the closure member to divide the upstream passag
There is a closure member for rotating or reciprocating movement between upstream and downstream passageways of a valve. A device, which consists of two or more elongated tubes whose cross sections form up into one or more files in moving direction of the closure member to divide the upstream passageway into many channels capable of leading the fluid to flow through, is disposed in the upstream passageway of the valve upstream of the closure member, consequently the upstream surface of the closure member can respectively open or close each channel in sequence while the closure member is rotating or reciprocating in the valve.
대표청구항
▼
1. A valve provided with a cylindrical device for enhancing the capability of a closure member of the valve and related seat ring for resisting erosion by the fluid with solid particles of grains, powders, crystals, polymers or liquid drops when it is used in applications for on-off or regulation, c
1. A valve provided with a cylindrical device for enhancing the capability of a closure member of the valve and related seat ring for resisting erosion by the fluid with solid particles of grains, powders, crystals, polymers or liquid drops when it is used in applications for on-off or regulation, comprising: a. a body housing, said body housing having an upstream passageway and a downstream passageway which have respectively flanges on their external ends for connecting with pipelines, and an inner chamber therebetween adapted to dispose a valve closure member, an opening passing through said body housing and being perpendicular to an axis of said upstream and downstream passageways for receiving a valve stem, a pair of annular recesses composed of a radial shoulder and an interior circumferential surface surrounding said passageways adjacent to the inner chamber for accommodating two seat rings respectively;b. a closure member, said closure member being disposed in said inner chamber, and rotating about or reciprocating along an axis of said stem relative to said body housing for shutting off or throttling the said fluid flowing through said passageways;c. a pair of seat rings, said seat rings positioned within said annular recesses in the passageways of said body housing, and clamped by said body housing and said closure member respectively, each of said seat rings having one radial end face engaged with the exterior surface of said closure member for shutting off said fluid flowing in said body housing together with said closure member when the valve is closed, and the opposite radial end face abutted on the shoulder in said annular recesses; and the bore of said seat rings surrounding the passageways respectively;d. wherein the exterior surface of said cylindrical device is held in an interior circumferential surface of the upstream passageway of said valve housing; ande. wherein said cylindrical device comprises of at least one baffle plate arranged respectively in one or more planes formed from either said axis, or straight lines parallel to said axis, of said upstream passageway and a straight line simultaneously perpendicular to said axis of said upstream passageway, or at least one straight line parallel to said axis of said upstream passageway and a straight line in a moving direction of said closure member; wherein the at least one baffle plate in said cylindrical device divides the upstream passageway of said valve into two or more channels whose cross sections form up into at least one single file in a moving direction of said closure member to permit said fluid to flow through, so that the fluid flowing into said upstream passageway towards said closure member is split into two or more streams flowing in said channels, and the upstream surface of said closure member respectively opens or closes each channel in every single file in sequence while it is rotating or reciprocating in said valve; wherein two opposing sides of said at least one baffle plate are parallel to said axis of said upstream passageway, and each comprise cylindrical surface contours that are firmly attached to opposite faces of the circumferential surface of said upstream passageway. 2. The valve as recited in claim 1, wherein said cylindrical device comprises many elongated tubes forming said two or more channels; said elongated tubes being welded together along their adjacent external surfaces, and whose longitudinal axes are parallel to the axis of said upstream passageway, divide the upstream passageway of said valve into many channels whose cross sections form up into two or more single files in moving direction of said closure member to permit the fluid to flow through, so that the fluid flowing into said upstream passageway towards said closure member is split into many streams flowing in said channels, the upstream surface of said closure member respectively opens or closes each channel in every single file in sequence while it is rotating or reciprocating in said valve; the cylindrical exterior surface of said cylindrical device has the same size and geometrical shape as an interior circumferential surface of said valve upstream passageway. 3. The valve as recited in claim 2, wherein the elongated tubes are formed of corrugated metal plates disposed oppositely by welding together at their crests. 4. The valve as recited in claim 2, wherein the radial end surface of one end of said cylindrical device close to said closure member has the same geometrical shape and curvature as the upstream surface of said closure member for keeping a clearance or engaging with it. 5. The valve as recited in claim 4, wherein the other end face of said cylindrical device away from said closure member is flush with an end face of the valve flange at upstream or connecting end of upstream section of said valve. 6. The valve as recited in claim 2, wherein there are many small through holes or apertures in walls of tubes of said cylindrical device. 7. The valve as recited in claim 2, wherein said cylindrical device is mounted in a sleeve in advance firmly and then said sleeve is attached to the upstream passageway of said valve. 8. The valve as recited in claim 1, wherein the sides of said cylindrical devices close to said closure member has the same geometrical shape and curvature as the upstream surface of said closure member for keeping a clearance or engaging with it. 9. The valve as recited in claim 8, wherein the sides of the baffle plates away from said closure member are flush with an end face of an valve flange at a connecting end of an upstream section of said valve. 10. The valve as recited in claim 1, wherein there are many small through holes or apertures staggered from each other in walls of the baffle plates of said cylindrical device. 11. The valve as recited in claim 1, wherein said cylindrical device is firmly mounted in a sleeve in advance and then said sleeve is attached to the upstream passageway of said valve.
이 특허에 인용된 특허 (9)
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Reynolds David C. (Williamsport PA) Osthues Robert H. (Holden MA), Ball valve having improved inherent rangeability.
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Man-Chun Tse CA, Butterfly valve noise suppressor.
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Leinen Chris M. (Houston TX), Flow control valve.
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Meheen,David, Flow laminarizing device.
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Schafbuch Paul J. (Marshalltown IA) Kuhlman Charles R. (Marshalltown IA), Fluid control valve with attenuator and dynamic seal.
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Boger Henry William, Low noise ball valve assembly with downstream insert.
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Davenport Robert G. (23003 Willowcreek Stables Rd. Spring TX 77389), Low recovery rotary control valve.
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Paetzel Herbert K. (Nettetal-Hinsbeck DEX), Low-noise control valve.
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Choi,Michael; Keyvanmanesh,Amir, Noise attenuation device for a vehicle exhaust system.
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