Hydrostatic test device and hydrostatic test method for high pressure turbine
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01M-003/04
F01K-013/00
G01M-003/02
G01M-099/00
출원번호
US-0572354
(2014-12-16)
등록번호
US-9771833
(2017-09-26)
우선권정보
KR-10-2014-0005192 (2014-01-15)
발명자
/ 주소
Nam, Ki Young
Baek, Seung Hack
Song, Ho Joo
출원인 / 주소
DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
대리인 / 주소
Baker & McKenzie LLP
인용정보
피인용 횟수 :
0인용 특허 :
11
초록
A hydrostatic test device for a turbine may include a plurality of feeding holes having a groove part formed with a greater diameter. Sealing members may be fitted into feeding holes in upper or lower casings of a turbine to seal the feeding holes.
대표청구항▼
1. A hydrostatic test device for a high pressure turbine, comprising: a plurality of feeding holes defined in upper and lower casings of the high pressure turbine, the feeding holes having grooves defined therein to receive a fitting plate, the grooves having a diameter greater than that of the feed
1. A hydrostatic test device for a high pressure turbine, comprising: a plurality of feeding holes defined in upper and lower casings of the high pressure turbine, the feeding holes having grooves defined therein to receive a fitting plate, the grooves having a diameter greater than that of the feeding hole; anda plurality of sealing members that fit into the feeding holes to seal the feeding holes, wherein each sealing member comprises: an O-ring assembly that seals to a respective feeding hole; andthe fitting plate that fits into the groove of a respective feeding hole when disposed on a first surface of the O-ring assembly. 2. The hydrostatic test device of claim 1, wherein an inner circumferential surface of at least on of the feeding holes includes a step that supports a second surface of a respective O-ring assembly opposite to the first surface. 3. The hydrostatic test device of claim 1, further comprising a fixing plate that fixes the O-ring assembly to the fitting plate. 4. The hydrostatic test device of claim 3, wherein the O-ring assembly, the fitting plate, and the fixing plate have a plurality of bolt holes defined therein. 5. The hydrostatic test device of claim 3, wherein the O-ring assembly comprises: a body having an outer surface corresponding to an inner circumferential surface of a respective feeding hole; andan O-ring disposed around the outer surface of the body. 6. The hydrostatic test device of claim 5, wherein the body of the O-ring assembly includes a fixing hole defined therein that couples to a tool that inserts the O-ring assembly into the feeding hole. 7. The hydrostatic test device of claim 1, wherein the fitting plate comprises at least two divided members. 8. The hydrostatic test device of claim 7, wherein the at least two divided members of the fitting plate are symmetrical to each other about a longitudinal axis of the O-ring assembly. 9. The hydrostatic test device of claim 8, wherein the at least two divided members of the fitting plate have a shape corresponding to a shape of the first surface of the O-ring assembly divided at an equal angle about the longitudinal axis of the O-ring assembly. 10. The hydrostatic test device of claim 9, wherein each divided member of the fitting plate comprises a plurality of bolt holes defined in a triangular shape, and the O-ring assembly and the fixing plate have a plurality of bolt holes respectively defined therein corresponding to the bolt holes of the divided members. 11. A hydrostatic test device for a high pressure turbine, comprising: a plurality of feeding holes defined in upper and lower casings of the high pressure turbine, the feeding holes having grooves defined therein; anda plurality of sealing members, each sealing member including an O-ring assembly that fits into a respective feeding hole to seal the feeding hole,a fitting plate that fits into the groove of the respective feeding hole to support the O-ring assembly, anda fixing plate that couple to the fitting plate. 12. The hydrostatic test device of claim 11, wherein the O-ring assemblies each include an O-ring coupled thereto. 13. The hydrostatic test device of claim 11, wherein each fitting plate comprises at least two divided members that have a shape corresponding to a shape of a surface of the O-ring assembly divided at an equal angle. 14. The hydrostatic test device of claim 11, wherein each O-ring assembly, each fitting plate, and each fixing plate have a plurality of bolt holes defined therein at corresponding positions such that the O-ring assembly, the fitting plate, and the fixing plate integrally assemble with each other. 15. The hydrostatic test device of claim 11, wherein each O-ring assembly includes a fixing hole defined therein that couples to a tool that inserts the O-ring assembly into the feeding hole. 16. A hydrostatic pressure test method, comprising: fitting an O-ring assembly into a feeding hole defined in an upper or lower casing of a turbine;fitting a fitting plate, which includes a plurality of distinct members, into a groove defined in the feeding hole;coupling a fixing plate having a circular plate shape to one surface of the fitting plate;coupling a bolt to one surface of the fixing plate to integrally fix the fitting plate and the O-ring assembly to the one surface of the fixing plate; andperforming a hydrostatic test by providing water to the upper or lower casings. 17. The hydrostatic pressure method of claim 16, wherein the fitting the O-ring assembly includes coupling a tool to a fixing hole defined in the O-ring assembly, and inserting the O-ring assembly into the feeding hole by using the tool. 18. The hydrostatic pressure method of claim 16, wherein the fitting the fitting plate includes moving the fitting plate radially outward from a center of the feeding hole toward the groove of the feeding hole. 19. The hydrostatic pressure method of claim 16, wherein the members of the fitting plate are symmetrical to each other about a longitudinal axis of the O-ring assembly.
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