Gas turbine welding structure nozzle and machining method thereof
A welding structure, gas turbine technology, applied in the combustion method, combustion chamber, combustion equipment and other directions, can solve the problems of wasting manpower, material resources, long nozzle manufacturing period, increasing production costs, etc., to simplify the manufacturing process, save manpower and material resources, shorten the The effect of manufacturing duration
Active Publication Date: 2015-03-25
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology
This kind of process is relatively complicated. Casting nozzles require mold manufacturing, material melting and pouring, while forging nozzles require mold forging and machining, which leads to a longer nozzle manufacturing period, waste of manpower and material resources, and increases production costs.
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[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] like Figure 2 to Figure 9 As shown, a welded structure nozzle of a gas turbine includes a nozzle flange 2, a nozzle support rod 4, a nozzle head shell 5, a main oil circuit nozzle 6, an auxiliary oil circuit nozzle 9, a main fuel flow channel 3, and an auxiliary fuel flow channel 7; a second through hole 14 and a third through hole 15 are respectively provided at the center of the nozzle flange 2, and the upper end of the main fuel flow channel 3 passes through the third through hole 15 of the nozzle flange 2 and connects with the The lower end of the main oil passage nozzle 6 is welded and connected, and the upper end of the auxiliary fuel flow channel 7 passes through the second through hole 14 of the nozzle flange 2 and is welded to the lower end of the auxiliary oil passage nozzle 9; The lower end of the nozzle head housi...
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The invention provides a gas turbine welding structure nozzle and a machining method of the gas turbine welding structure nozzle and belongs to the technical field of gas turbines. According to the nozzle, the upper end of a main fuel flow channel penetrates through a third through hole and is then welded to the lower end of a main oil way joint, and the upper end of an auxiliary fuel flow channel penetrates through a second through hole and is then welded to the lower end of an auxiliary oil way joint; a nozzle head shell is welded to the lower ends of the fuel flow channels; nozzle supporting rods are welded to the outer sides of the portions, between a nozzle flange and the nozzle head shell, of the main fuel flow channel and the auxiliary fuel flow channel; an inner core is arranged in the nozzle head shell and first plugs and a second plug are arranged in through holes in the nozzle head shell. The machining method includes the steps that the upper end of the main fuel flow channel penetrates through the third through hole and is welded to the nozzle flange, and the upper end of the auxiliary fuel flow channel penetrates through the second through hole and is welded to the nozzle flange; the nozzle head shell is welded to the lower ends of the fuel flow channels; the nozzle supporting rods are fastened and welded; the lower end of the main oil way joint is welded to the upper end of the main oil way joint and the lower end of the auxiliary oil way joint is welded to the upper end of the auxiliary fuel flow channel.
Description
technical field [0001] The invention belongs to the technical field of gas turbines, in particular to a welding structure nozzle of a gas turbine and a processing method thereof. Background technique [0002] The nozzle is composed of a nozzle shell and an internal core body. The geometry of the nozzle shell is relatively complex, and there are many special shapes, so most of them use casting or forging to form a blank, and then machine the relevant mating surface. This kind of process is relatively complicated. Casting nozzles require mold manufacturing, material melting and pouring, while forging nozzles require mold forging and machining, resulting in a long nozzle manufacturing period, waste of manpower and material resources, and increase production costs. Integral forged nozzle housing structure, such as figure 1 shown. Contents of the invention [0003] Aiming at the problems existing in the prior art, the invention provides a gas turbine welded structure nozzle a...
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IPC IPC(8): F23R3/28
Inventor 宋文超李明王巍龙
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION