High-efficiency and low-pollution core engine

A low-pollution, core engine technology, applied in the direction of indirect carbon dioxide emission reduction, combustion methods, lighting and heating equipment, etc., can solve the problems of unfavorable flameless combustion, complex backflow structure, difficult control of backflow flue gas and air mixing process, etc. , to achieve the effect of simple structure, improved thermal efficiency, and fewer parts

Active Publication Date: 2017-06-27
XIAMEN UNIV
6 Cites 4 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, the physical backflow structure is relatively complex and the mixing process of backflow flue ga...
View more

Method used

Described flameless combustion chamber can adopt traditional single cylinder combustion chamber, does not need to increase mechanical structure for forming flameless combustion;...
View more

Abstract

The invention relates to a high-efficiency and low-pollution core engine, and relates to a gas turbine. The high-efficiency and low-pollution core engine is provided with a wave rotor, a pipeline, a fuel inlet and a flameless combustion chamber, wherein the wave rotor comprises a rotor, an air inlet end port plate and an outlet end port plate; the air inlet end port plate and the air outlet end port plate are correspondingly arranged at two sides of the rotor; parallel air channels are arranged in a circle on the rotor; a wave rotor air inlet and a reflowing smoke inlet are formed in the air inlet end port plate; a high-temperature low-oxygen mixed gas outlet and a smoke outlet are formed in the air outlet end port plate; the wave rotor air inlet, the reflowing smoke inlet, the high-temperature low-oxygen mixed gas outlet and the smoke outlet are used as inlets and outlets of gas medium; the rotor is rotated relative to the air inlet end port plate and the air outlet end port plate so as to regularly open and close an inlet and an outlet of a rotor channel; the pipeline is connected with the wave rotor and the flameless combustion chamber to form a flowing channel through which the reflowing smoke entering the pipeline can be mixed with air to generate high-temperature low-oxygen mixed gas; the fuel inlet is formed in the pipeline or/ and the flameless combustion chamber.

Application Domain

Continuous combustion chamberIndirect carbon-dioxide mitigation

Technology Topic

AirflowCombustion chamber +6

Image

  • High-efficiency and low-pollution core engine
  • High-efficiency and low-pollution core engine

Examples

  • Experimental program(1)

Example Embodiment

[0023] The embodiments of the present invention will be described below with reference to the accompanying drawings, that is, the embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0024] Such as figure 1 with 2 As shown, the embodiment of the present invention is provided with a wave rotor 1, a pipe 2, a fuel inlet 3, and a flameless combustion chamber 4; the wave rotor 1 includes a rotor 11, an intake port disk 12 and an exhaust port disk 13, and an intake port The disc 12 and the outlet port disc 13 are respectively arranged on both sides of the rotor 11; the rotor 11 has a parallel air flow channel, and the inlet port disc 12 is provided with a wave rotor air inlet 121 and a return flue gas inlet 122, The gas outlet plate 13 is provided with a high temperature and low oxygen mixed gas outlet 131 and a flue gas outlet 132; the wave rotor air inlet 121, the return flue gas inlet 122, the high temperature and low oxygen mixed gas outlet 131 and the flue gas outlet 132 are used as gas The inlet and outlet of the working fluid; the relative rotation of the rotor 11, the inlet port disc 12 and the outlet port disc 13 causes the inlet and outlet of the rotor passage to be opened and closed periodically, thereby triggering appropriate unsteady shock waves (or compression waves) and expansion waves , To realize the function of pressurization and expansion of the wave rotor; the pipe 2 connects the wave rotor 1 and the flameless combustion chamber 4 to form a flow path, so that the return flue gas entering the pipe 2 is mixed with air to form a high temperature and low oxygen mixture; The fuel inlet 3 is provided on the pipe 2 or/and the flameless combustion chamber 4.
[0025] The flameless combustion chamber can adopt a traditional single-cylinder combustion chamber, and there is no need to increase the mechanical structure to form flameless combustion; to achieve flameless combustion, the temperature of the combustion products is more uniform, the combustion performance is optimized, and pollution such as nitrogen oxides is reduced emission.
[0026] In the work of the present invention, there are two gaseous working fluids, one of which enters the wave rotor 1 from the wave rotor air inlet 121, is pressurized by the shock wave (or compression wave), and finally flows out of the wave rotor 1 from the high temperature and low oxygen mixed gas outlet 131, After flowing into the flameless combustion chamber 4 through the pipe 2 for flameless combustion; the second flue gas from the flameless combustion chamber 4 enters the wave rotor 1 from the return flue gas inlet 122 and is expanded by the expansion wave, and finally from the flue gas outlet 132 flows out of the wave rotor 1; when two gaseous working fluids flow through the wave rotor 1, a part of each is mixed into each other. The process of mixing flue gas into air is called flue gas reflux, and the part of flue gas that occurs flue gas reflux is called reflux Smoke.
[0027] The port angles of the wave rotor in the present invention are: the angle of the wave rotor air inlet 121 can be 78±5°, the angle of the high temperature and low oxygen mixed gas outlet 131 can be 77±5°, and the angle of the return flue gas inlet 122 can be 67. ±5°, the angle of the flue gas outlet 132 can be 58±5°; the distance between the center of the wave rotor air inlet 121 and the return flue gas inlet 122 can be 163°±5°, the high temperature and low oxygen mixed gas outlet 131 and the flue gas outlet 132 The distance between the center positions can be 133±5°. After calculation, the wave rotor designed according to the above parameters can effectively control the mixing ratio of flue gas and air under the design working state, and then fully mix through the pipeline to form high temperature and low oxygen gas.
[0028] In the present invention, the commercial software Chemkin can be used to simulate combustion. After calculation, when the inlet of the flameless combustion chamber is high temperature and low oxygen intake, the NOx emission is below 10 ppm, which is lower than the traditional combustion mode.
[0029] In summary, the present invention can efficiently realize the functions of the core engine of a traditional gas turbine, effectively reduce the volume of the gas turbine, improve work efficiency and power, organize stable flameless combustion, and reduce pollutant emissions.

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Systems and methods for notifying multiple hosts from an industrial controller

ActiveUS8150959B1reusable block of code very difficultimprove efficiency
Owner:ROCKWELL AUTOMATION TECH

MIMO-OFDM transmitter

InactiveUS20070253504A1improve efficiencyreduce time
Owner:FUJITSU LTD

Systems and methods for providing treatment planning

InactiveUS20050182654A1high quality of careimprove efficiency
Owner:ALIGN TECH

Classification and recommendation of technical efficacy words

  • Improve efficiency
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products