초록 ▼

A gas turbine cooling and sealing air supply system design for an industrial gas turbine is provided which effectively eliminates the need to dissipate bleed pressure across an orifice or similar device, thereby to optimize full load ISO performance. This flow system is realized by providing cross o

A gas turbine cooling and sealing air supply system design for an industrial gas turbine is provided which effectively eliminates the need to dissipate bleed pressure across an orifice or similar device, thereby to optimize full load ISO performance. This flow system is realized by providing cross over valves/ejectors which allow mixing of extractions of different pressures. Control valves provided in the various extraction and cross over flow paths selectively control and determine the flow of extraction bleed air from the various stages of the compressor and between the extraction flow paths. Once the air is combined, its combined pressure and temperature is somewhere between the lower and higher pressure extraction air original pressures and temperatures. Thus, the proper pressure can be supplied to, e.g., the turbine with the least expensive, in terms of work invested, mixture of air with the lowest temperature.

대표청구항 ▼

A gas turbine cooling and sealing air supply system design for an industrial gas turbine is provided which effectively eliminates the need to dissipate bleed pressure across an orifice or similar device, thereby to optimize full load ISO performance. This flow system is realized by providing cross o

A gas turbine cooling and sealing air supply system design for an industrial gas turbine is provided which effectively eliminates the need to dissipate bleed pressure across an orifice or similar device, thereby to optimize full load ISO performance. This flow system is realized by providing cross over valves/ejectors which allow mixing of extractions of different pressures. Control valves provided in the various extraction and cross over flow paths selectively control and determine the flow of extraction bleed air from the various stages of the compressor and between the extraction flow paths. Once the air is combined, its combined pressure and temperature is somewhere between the lower and higher pressure extraction air original pressures and temperatures. Thus, the proper pressure can be supplied to, e.g., the turbine with the least expensive, in terms of work invested, mixture of air with the lowest temperature. apping the strips with amorphous metal ribbons that have been weakened in predetermined areas but not fully parted. After the core has been built to its desired size, the weakened ribbons are completely parted. This method of making an amorphous magnetic core produces a tightly wound distributed gap core without the need for a belt winder or specialized strip holding devices. irst and second tips are adapted to engage the annular rim portion of the sink flange, and the tool includes a pair of first and second ring-dislodging components that are adapted to enable the person to dislodge the locking ring from the first and second tips by operation of the ring-dislodging components; engaging and spreading the locking ring with the first and second tips of the tool by squeezing the handles toward each other; moving the tool to a position such that the locking ring surrounds the groove and the first and second tips engage the lower rim portion of the sink flange; and operating the dislodging components to complete placement of the locking ring in the groove. 2. A tool for installing a locking ring in an annular groove defined by a lower annular rim portion of a sink flange, the tool comprising: a pair of first and second elongated members that are pivotally connected to each other at a pivot point to form a pair of opposed first and second handles and a pair of opposed ring-engaging first and second tips such that the first and second tips move away from each other by operation of a person squeezing the first and second handles toward each other; each of the first and second tips defining a respective one of a pair of outwardly facing first and second indentations that adapt the first and second tips to function as means for engaging the locking ring in order to spread the locking ring by operation of the person squeezing the first and second handles toward each other; each of the first and second tips defining a respective one of a pair of inwardly facing third and fourth indentations that adapt the first and second tips to function as means for engaging the annular rim portion of the sink flange; and each of the first and second elongated members including a respective one of a pair of first and second ring-dislodging components that are adapted to function as means for enabling the person to dislodge the locking ring from the first and second tips in order to complete installation of the locking ring in the annular groove. 3. A tool as recited in claim 2, wherein each of the ring-dislodging components is attached slidably to a respective one of the first and second tips for movement between a withdrawn position and a deployed position. 4. A tool as recited in claim 2, wherein the first and second elongated members have a similar shape and the second elongated member is flipped horizontally with respect to the first elongated member before being connected to the first elongated member at the pivot point. 5. A tool as recited in claim 2, wherein the second elongated member includes means for limiting the amount the person can squeeze the first and second handles toward each other. 6. A tool as recited in claim 2, wherein the first and second handles include rubber coatings. 7. A tool for installing a locking ring in an annular groove defined by a lower annular rim portion of a sink flange, the tool comprising: a pair of first and second elongated members that are pivotally connected to each other to form a pair of opposed first and second handles at proximal end portions of the first and second elongated members and a pair of opposed ring-engaging first and second tips at distal end portions of the first and second elongated members; each of the first and second tips defining a respective one of a pair of outwardly facing first and second indentations that function as means for engaging the locking ring in order to spread the locking ring by operation of the person squeezing the first and second handles toward each other; each of the first and second tips defining a respective one of a pair of inwardly facing third and fourth indentations that function as means for engaging the annular rim portion of the sink flange; and each of the first and second elongated members including a respective one of a pair of first and second ring-dislodging components that function as means for enabling