Flow change-over valve for the blowing of fluids into molten metal vessel
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/12
F16K-019/00
출원번호
US-0605137
(1984-04-30)
우선권정보
JP-0058162 (1984-03-28)
발명자
/ 주소
Tomiyama, Yoshiro
Yamanashi, Masaaki
Morishita, Hitoshi
Sudo, Fumio
Fujii, Shuzo
Miwa, Hideo
출원인 / 주소
Kawasaki Steel Corporation, Denka Consultant & Engineering Company Limited
대리인 / 주소
Balogh, Osann, Kramer, Dvorak, Genova & Traub
인용정보
피인용 횟수 :
11인용 특허 :
6
초록▼
Disclosed herein is a flow change-over valve for the blowing of fluids into a molten metal vessel, which includes a housing provided with at least three inlet ports for different fluids and an outlet port, a valve body with a main passage communicating selectively between one of the inlet ports and
Disclosed herein is a flow change-over valve for the blowing of fluids into a molten metal vessel, which includes a housing provided with at least three inlet ports for different fluids and an outlet port, a valve body with a main passage communicating selectively between one of the inlet ports and the outlet port and rotatably supported in the housing to perform the changing-over of inlet passages. Among these inlet ports, an inlet port for purging fluid is opened in the housing, and a shroud-like gap surrounding the valve body is formed between the inner periphery of the housing and the outer periphery of the valve body in such a manner that it communicates with the inlet port for the purging fluid disposed in the housing and is always to be communicated with an opening of an inlet port of the main passage during the changing-over through the rotation of the valve body.
대표청구항▼
1. A flow change-over valve for the blowing of fluids into a molten metal vessel comprising a housing provided with an inner body supporting space, an outlet port and at least three inlet ports for different fluids, said at least three inlet ports comprise first, second and third inlet ports, a sphe
1. A flow change-over valve for the blowing of fluids into a molten metal vessel comprising a housing provided with an inner body supporting space, an outlet port and at least three inlet ports for different fluids, said at least three inlet ports comprise first, second and third inlet ports, a spherical valve body hermetically fitted into said supporting space, said valve body having upper and lower extension portions disposed axially with respect to said outlet port, said valve body rotatably supported in the housing to perform a changing-over of said inlet passages and provided therein with a main passage communicating with said outlet port and selectively communicating between a respective one of said first, second or third inlet ports, said main passage extending through the upper extension portion of the valve body for communication with the outlet port, said main passage further defining an inlet opening in said valve body for communication with a respective one of said first, second or third inlet ports, and an outlet opening which defines the outlet port, said third inlet port being a purging fluid inlet arranged to communicate with said inlet opening so as to provide a purge fluid flow through said main passage to the outlet port during each rotation of the valve body when changing-over from said first inlet port to said second inlet port and vice versa, hermetic sealing means providing a sealed fluid passage, respectively, between each of said first and second inlet ports and the inlet opening of said valve body, and means for pushing said hermetic sealing means against the valve body so as to prevent leakage, said housing being provided with a shroud-like gap surrounding the valve body, said gap being in communication with the inner periphery of the housing, said gap being in communication with said third inlet port for purging fluid and the inlet opening of said main passage to provide a purge fluid flow when the valve body changes-over from said first inlet port to said second inlet port so as to provide a purge fluid flow through said main passage, and vice versa, to prevent any mixing of different fluids flowing through said first and second inlet ports, the lower extension portion of the valve body being provided with a purge fluid passage for communicating with a second purge fluid inlet, said purge fluid passage extending within said purge fluid passage extending within said lower extension portion to said spherical valve body, said passage communication with said main passage interiorly of said spherical valve body so as to direct purging fluid toward said outlet port, said housing including a purge fluid connection wherein both said purge fluid inlet and said second purge fluid inlet communicate with said purge fluid connection. 2. A flow change-over valve according to claim 1, further comprising a driving means connected to the lower extension portion of the valve body.
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이 특허에 인용된 특허 (6)
Kindersley Peter G. (Glen Falls NY), Ball valve for valving abrasive fluids.
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Lazcano-Navarro Arturo (Saltillo MXX) Alcantara Miguel A. (Saltillo MXX) Hernandez-Ruiz Jose E. (Saltillo MXX), Device for the selective injection of an oxidizing gas or a carrier gas with or without carbonaceous material to a liqui.
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