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Annular combustion chamber fuel gas generator using alcohol as fuel

A technology of annular combustion chamber and gas generator, which is applied in the direction of burners, lighting and heating equipment, etc., can solve the problem of low operating cost and achieve the effect of high ignition reliability

Active Publication Date: 2014-04-02
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The ethanol fuel annular combustor gas generator solves many shortcomings of existing gas generators. It has high gas enthalpy, simple ignition system, high reliability, small geometric size, light weight, no need for cooling water system, and low operating cost. , high combustion efficiency, long service life and other advantages

Method used

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  • Annular combustion chamber fuel gas generator using alcohol as fuel
  • Annular combustion chamber fuel gas generator using alcohol as fuel
  • Annular combustion chamber fuel gas generator using alcohol as fuel

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Embodiment Construction

[0032] The following is a detailed description of the specific implementation of the patent of the present invention, giving the design idea and the calculation method of important structural dimensions. Those skilled in the field of aero-engine main combustion chamber design can reproduce the related products of this patent according to this method.

[0033] 1 design input

[0034] The gas generator design requires the following parameters to be known:

[0035] 1) Air flow: W a

[0036] 2) Air pressure: P a

[0037] 3) Inlet temperature: T in ≈288K

[0038] 4) Outlet temperature: T out ≈1100K

[0039] 2 Aerothermal Calculation

[0040] 1) Fuel flow W f

[0041] W f = W a L 0 α . . . 1

[0042] Among them: L0 =9 is the theoretical air volume

[0043...

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Abstract

The invention belongs to the technical field of fuel gas generators, and particularly relates to an annular combustion chamber fuel gas generator. The annular combustion chamber fuel gas generator using alcohol as fuel comprises a plurality of dual-oil path centrifugal sprayers (1-0) distributed uniformly along the peripheral direction, a plasma ignition electric nozzle (2-0), a shell (3-0), a positioning pin (4-0) and a flame drum (5-0); the flame drum (5-0) is arranged in the shell (3-0) and is coaxial with the shell (3-0), and two cavity paths are formed between the flame drum and the shell; the dual-oil path centrifugal sprayers (1-0), the plasma igniter (2-0) and the positioning pin (4-0) are combined and assembled with the flame drum (5-0) by the shell (3-0). The fuel gas generator uses air as an oxidizing agent and the alcohol as the fuel, so the fuel gas has high enthalpy value. Air is very easy to obtain, and the alcohol is low in price, so the disadvantages of low enthalpy value and high operation cost of fuel gas of the existing fuel gas generator in the application field are solved.

Description

technical field [0001] The invention belongs to the technical field of gas generators, in particular to a gas generator with an annular combustion chamber. Background technique [0002] At present, the gas generators used in the air heating system, negative pressure / vacuum pumping system, and laser pressure recovery system of the scram chamber test equipment mainly include: [0003] 1) Single-element gas generator for catalytic decomposition of hydrogen peroxide: This type of gas generator has a low gas enthalpy, low injection efficiency, expensive hydrogen peroxide, and requires catalyst decomposition, resulting in high operating costs. [0004] 2) Low-concentration alcohol / hydrogen peroxide two-component gas generator: This type of gas generator is difficult to start and ignite, and the plasma ignition nozzle is difficult to ignite directly. Generally, a pre-combustion chamber igniter is used, that is, the plasma ignition nozzle is first used to ignite The pre-combustion ...

Claims

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Application Information

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IPC IPC(8): F23D11/00F23D11/36F23D11/38
Inventor 罗智锋刘重阳冯大强李俊松
Owner AECC SICHUAN GAS TURBINE RES INST
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