Gas turbine preevaporation combustion-chamber for combusting ethanol fuel

A technology of gas turbine and ethanol fuel, which is applied in the direction of combustion chamber, continuous combustion chamber, combustion method, etc., can solve the problem of low boiling point, volatile and high latent heat of evaporation of ethanol fuel, which is not fully applicable, gas turbine combustion chamber cannot be fully used, and pollution emission structure Strength and other issues, to achieve the effect of reducing carbon black smoke and NOx generation, simple nozzle form and structure, and low maintenance costs

CN101307915BInactive Publication Date: 2010-06-02BEIHANG UNIV
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2010-06-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a pre-evaporation combustion chamber of a gas turbine burning ethanol fuel. The pre-evaporation combustion chamber of the gas turbine burning ethanol fuel adopts a single tubecylinder combustion chamber structure which is formed by a combustion chamber cartridge receiver and a flame tube; an inlet of the combustion chamber is used for introducing air current, and is weldedwith the combustion chamber cartridge receiver; an ethanol supply path adopts a direct injecting hole as an ethanol nozzle, liquid ethanol is supplied to a pre-evaporation tube; atomization, evaporation and doping of the ethanol can be completed by using temperature and aerodynamic force of the current in the pre-evaporation tube; air is aerated into the tube from a primary injection hole and a secondary rotational flow hole, the primary injection hole can be divided into two proposals of a radial direction and an axial direction, the rotational flow is not generated by primary jet current, and the rotational flow is completely generated by the current which is aerated from the secondary rotational flow hole; the liquid ethanol is evaporated and is mixed with the air through the functionsof the primary jet current and the secondary rotational flow; the mixed combustible gas is aerated to the flame tube from the pre-evaporation tube; and the combustion of the ethanol is completed in the flame tube by an electric spark lighter; and the pre-evaporation combustion chamber can sufficiently exert characteristic of the ethanol fuel by using the pre-evaporation tube, thereby improving efficiency of the combustion chamber and reducing pollution emission.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a gas turbine combustor, in particular to a gas turbine pre-evaporation combustor burning ethanol fuel. Background technique

[0002] Due to the limited supply of global fossil fuel reserves and the pressure of environmental pollution, the application of biomass fuels such as ethanol and biodiesel has been strongly advocated. Among them, ethanol is a renewable energy, which can be produced by fermenting sugar and other processes, thereby reducing the dependence on non-renewable fossil fuels and benefiting the sustainable development of human beings. The application of ethanol fuel has certain strategic significance for the global response to the energy crisis. In addition, the use of biological enzyme technology and agricultural product fermentation technology can produce ethanol from various biological materials such as grain, sucrose, and fiber, which can adjust the contradiction between grain supply and demand to a large ex...

Examples

Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] A gas turbine pre-evaporation combustor using ethanol fuel described in this embodiment adopts a single-tube cylindrical combustor structure, and is composed of a combustor casing 2 and a flame tube 6; the air flow enters the combustor from the combustor inlet 1 , into the flame tube through the opening on the pre-evaporation tube 4 and the flame tube 6; the liquid ethanol fuel is sprayed into the pre-evaporation tube 4 through the direct injection hole 28 on the ethanol supply path 3, under the action of the primary flow and the secondary swirling flow , the liquid ethanol is evaporated and mixed with air, and the mixed combustible gas enters the flame tube 6 from the outlet of the pre-evaporator tube 4; the ignition of the ethanol combustion chamber is realized by the electric spark igniter 5, and the entire ethanol combustion process...