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Gas-assisted dual-fuel nozzle used for chemical regenerative cycle

A chemical regenerative cycle and gas-assisted technology, applied in combustion chambers, combustion methods, combustion equipment, etc., can solve the problem of insufficient jet flow, and achieve the effect of enhancing combustion effect, ensuring fuel atomization quality, and improving fuel atomization effect.

Inactive Publication Date: 2013-06-26
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent is when using liquid fuel, from when the fuel is mixed together and atomized bit steam in advance, only the second jet hole injects the fuel, which may become jet not high enough

Method used

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  • Gas-assisted dual-fuel nozzle used for chemical regenerative cycle
  • Gas-assisted dual-fuel nozzle used for chemical regenerative cycle

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Embodiment Construction

[0018] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0019] combine Figure 1~2 , the present invention includes cracked gas channel outer wall 1, cracked gas channel inner wall 2, main oil circuit inner wall 3, spring 4, swirl plate 5, cracked gas outlet 6, main oil circuit swirl groove 7, auxiliary oil circuit swirler 8 , Cracked gas channel 9, main oil circuit 10, auxiliary oil circuit 11. A cracked gas channel 9 is formed between the outer wall 1 of the cracked gas channel and the inner wall 2 of the cracked gas channel, and the main oil circuit 10 is formed between the inner wall 2 of the cracked gas channel and the inner wall 3 of the main oil circuit. The auxiliary oil circuit 11 is equipped with a spring 4 and an auxiliary oil circuit swirler 8, and the spring 4 withstands the auxiliary oil circuit swirler 8 so that the auxiliary oil circuit swirler 8 is coaxial with the main oil circuit inner wall 3, and t...

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Abstract

The invention provides a gas-assisted dual-fuel nozzle used for a chemical regenerative cycle. The gas-assisted dual-fuel nozzle comprises a pyrolysis gas channel outer wall, a pyrolysis gas channel inner wall and a main oil path inner wall. A pyrolysis gas channel is formed between the pyrolysis gas channel outer wall and the pyrolysis gas channel inner wall. A main oil path is formed between the pyrolysis gas channel inner wall and the main oil path inner wall. An auxiliary oil path is arranged in the main oil path inner wall. A spring and an auxiliary oil path swirler are mounted in the auxiliary oil path, wherein the spring abuts against the auxiliary oil path swirler to enable the auxiliary oil path swirler to be coaxial with the main oil path inner wall. A main oil path rotational flow groove is formed in the end portion of the main oil path. An outlet of the auxiliary oil path swirler is communicated with an outlet of the main oil path rotational flow groove. The cross section of the end portion of the pyrolysis gas channel outer wall is a trapezoid, wherein a spout is formed in the upper surface of the trapezoid, and a pyrolysis gas outlet is formed in each of waists of the trapezoid. The gas-assisted dual-fuel nozzle used for the chemical regenerative cycle combines the advantages of pressure swirl atomization and pneumatic nebulization, thereby being good in atomization effect and capable of meeting the requirements of full working conditions of a combustor.

Description

technical field [0001] The invention relates to a gas turbine, in particular to a nozzle of the gas turbine. Background technique [0002] With the advancement of technology, people's requirements for the performance of gas turbines are also getting higher and higher. In order to improve the performance of gas turbines, many advanced cycle methods have been continuously proposed, and the chemical regenerative cycle is an advanced cycle method. Its main principle is as follows: the gas turbine chemical reheating cycle uses the exhaust gas of the gas turbine turbine as the heat source, and generates a new synthetic fuel, namely cracked gas fuel, through the steam reforming reaction of the fuel and water vapor. The fuel enters the combustor for combustion, thereby recovering waste heat in the exhaust gas of the turbine to improve thermal efficiency. Since the working method of the chemical regenerative cycle gas turbine (CRGT) determines that its combustion chamber adopts a d...

Claims

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Application Information

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IPC IPC(8): F23R3/36
Inventor 刘潇郑洪涛和宏宾康振亚潘刚刘倩魏星贾翔羽姜雨
Owner HARBIN ENG UNIV
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