Dual temperature sensing device having twin well thermowell for dual resistance temperature detectors
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-035/02
출원번호
US-0073666
(1987-07-15)
발명자
/ 주소
Lyman Walter G. (Monroeville PA)
출원인 / 주소
Westinghouse Electric Corp. (Pittsburgh PA 02)
인용정보
피인용 횟수 :
22인용 특허 :
6
초록▼
A dual temperature sensing device has a twin well thermowell, for installation through a penetration in a pipe wall, and which has head, shank and tip portions. The shank portion has a first part of substantially the same outer dimensions as the penetration and the head portion is of greater outer d
A dual temperature sensing device has a twin well thermowell, for installation through a penetration in a pipe wall, and which has head, shank and tip portions. The shank portion has a first part of substantially the same outer dimensions as the penetration and the head portion is of greater outer dimensions so as to define an annular ledge which overlies the exterior surface of the pipe wall, for welding same thereto. The first part of the shank portion is of greater axial length than the pipe wall thickness and a second part thereof is tapered and elongated, for disposing the tip portion within the interior of the pipe. A pair of bores extend from the outer surface of the head portion at angularly inclined and converging relationship to closely spaced, but physically separated, positions in the tip portion. The head is counter-bored relative to the first bores, to define sockets for receiving the lower ends of pipe nipples, the upper ends of which are closed by pipe unions. Dual resistance temperature detectors are received through the respective pipe nipples with the elongated sensors extending through the respective bores to the tip portion of the thermowell, and are resiliently urged into position. Fittings, secured to the electrical cables of the detectors, are received in threaded engagement in the respective pipe unions and are removable for replacement of detectors. The detectors are both electrically and physically separated, and, produce identical, dual temperature indicating outputs.
대표청구항▼
A twin well thermowell for installation through a penetration, of a predetermined cross-sectional dimension, in a pipe wall of a given pipe wall thickness, comprising: a metallic body defining an elongated axis and having integrally connected and axially aligned head, shank and tip portions, the hea
A twin well thermowell for installation through a penetration, of a predetermined cross-sectional dimension, in a pipe wall of a given pipe wall thickness, comprising: a metallic body defining an elongated axis and having integrally connected and axially aligned head, shank and tip portions, the head portion being of an enlarged outer cross-sectional dimension relative to the shank portion and defining an outer surface, the shank portion having integrally connected first and second axial sections, the first axial section being of approximately the predetermined cross-sectional dimension and of an axial length in excess of the given pipe wall thickness, and the second axial section being integrally connected to the tip portion, the tip portion having a cross-sectional dimension substantially less than that of the first axial section of the shank portion, and the second axial section of the shank portion having a cross-sectional dimension which tapers from the integral connection thereof with the first axial portion to the integral connection thereof with the tip portion; and a pair of bores extending through the body from the outer surface of the head portion to the tip portion, said bores defining corresponding, substantially straight bore axes and the bore axes extending in symmetrical and angularly inclined, converging relationship from displaced positions on the outer surface of the head portion to closely spaced, physically separated positions in the tip portion.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Swearingen Saxon B. (La Porte TX), Fast responsive, high pressure thermocouple.
Sakami, Mohamed; Lopez, Fulton Jose; Zhang, Hongmei; Mani, Shobhana; Zirin, Robert Michael; Storey, James Michael; Avagliano, Aaton John; Syck, David Howard, Temperature measurement device that estimates and compensates for incident radiation.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.