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Easy-to-assemble heat-screening device for connecting cooling tube and through hole

A technology of heat shielding and cooling pipes, which can be used in the cooling of engines, jet propulsion devices, gas turbine devices, etc., and can solve problems such as strength limitations

Inactive Publication Date: 2004-05-12
NUOVO PIGNONE TECH SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Furthermore, it is known that in order to achieve maximum efficiency for a given gas turbine it is necessary for the temperature of the gas to be as high as possible; however, the maximum temperature achievable during turbine use is limited by the strength of the materials used limit

Method used

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  • Easy-to-assemble heat-screening device for connecting cooling tube and through hole
  • Easy-to-assemble heat-screening device for connecting cooling tube and through hole
  • Easy-to-assemble heat-screening device for connecting cooling tube and through hole

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Embodiment Construction

[0029] refer to figure 1 , a thermal shielding device according to the prior art generally indicated by reference numeral 10, which device is intended to engage together a cooling pipe 12 with a straight through hole 14 formed in a nozzle support ring 16 of a gas turbine.

[0030] in accordance with figure 1 In the example shown, the heat shield 10 includes a tubular structure 18 having a top end 20 , the outer diameter of which is substantially equal to the inner diameter of the through hole 14 .

[0031] The tubular structure 18 is inserted from the outside of the nozzle support ring 16 and arranged at the bottom end of the through hole 14 such that the structure is locked at the bottom end by a ring nut 22 mounted on the inside of the nozzle support ring 16 in order to support the tubular structure 18 placed thereon.

[0032] The substantially spherical bottom end of the cooling tube 12 extends inside the tubular structure 18 .

[0033] figure 2 , 3 , 4, and 5 show an...

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PUM

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Abstract

An easy-fit heat screening device (110) for connecting a cooling pipe (112) and a through-hole (114) formed in a nozzle support ring (116) of a gas turbine, of the type comprising a tubular structure (118) which has an external diameter smaller than a diameter of the through-hole (114) and into which the cooling pipe (112) extends; this tubular structure (118) has at the top a shaped annular end (126) which is inserted inside a groove (130) formed in the through-hole (114).

Description

technical field [0001] The present invention relates to an easy-to-assemble heat shield for connecting cooling pipes and through-holes formed in a nozzle support ring of a gas turbine. Background technique [0002] As is known, a gas turbine is a device comprising a compressor and a single- or multi-stage turbine, wherein these components are connected together by a shaft of rotation and a combustion chamber is arranged between the compressor and the turbine. [0003] In these devices, air from the external environment is supplied to a compressor in order to compress the air. [0004] Charge air flows through a series of premix chambers terminating in a converging section, and in each premix chamber injectors are used to supply fuel mixed with air to form an air / combustion fuel mixture. [0005] The fuel is introduced into the combustion chamber and ignited by means of a suitable spark plug in order to produce a combustion whose purpose is to increase the temperature and pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/28F01D9/02F01D9/04F01D9/06F01D11/00F01D25/08F01D25/12F02C7/18
CPCF01D11/005F01D25/08F01D9/065F02C7/28
Inventor M·佩基奥利
Owner NUOVO PIGNONE TECH SRL