Rotary constant-volume pressurizing combustion chamber

A combustion chamber and isovolume technology, applied in the field of combustion chambers, can solve the problems that the effective volume of the combustion chamber is less than the volume of the combustion chamber, the limited flow of air and fuel in the combustion chamber, etc., to achieve continuous intake and exhaust, and mechanical friction. The effect of reducing losses and shortening the premix distance

Inactive Publication Date: 2015-11-18
HUANENG POWER INTERNATIONAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the existing equal-volume combustors such as periodic air intake and exhaust, limited flow of air and fuel i

Method used

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  • Rotary constant-volume pressurizing combustion chamber
  • Rotary constant-volume pressurizing combustion chamber
  • Rotary constant-volume pressurizing combustion chamber

Examples

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Embodiment

[0047] In the present embodiment, the diameter of the inner cavity of the combustion chamber shell 11 is 250 mm, and the wall thickness is 4 mm; the length of the inner cavity of the square tube-shaped combustion chamber exhaust structure 12 tangent to the combustion chamber shell 11 is 87 mm, the width is 44 mm, and the wall thickness is 4 mm; The heater 9 is arranged on both sides of the combustion chamber shell 11, the radius of the inner arc side is 50 mm, the radius of the outer arc side is 128 mm, and the width is 30 mm. The inlet and outlet ends of the fuel preheater 9 are designed to be convex and concave respectively. shape; the inner diameter of the fuel inlet pipe 2 and the fuel outlet pipe 3 is 26mm, in order to prevent the fuel pipes from intersecting, the fuel inlet pipe 2 and the fuel outlet pipe 3 are respectively connected to the intake end of the fuel preheater 9 and the fuel outlet pipe 3 through a 90-degree turn. The gas outlet is connected; a plurality of f...

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Abstract

The invention discloses a rotary constant-volume pressurizing combustion chamber. The rotary constant-volume pressurizing combustion chamber comprises multiple independent constant-volume combustion chamber bodies, a fuel inlet tube, a fuel outlet tube, fuel nozzles, a spark plug mounting base, an air feeding structure, a spark plug and the like. The rotary constant-volume pressurizing combustion chamber is simple in structure. The air feeding structure can send air and fuel into the combustion chamber bodies uninterruptedly, an exhaust structure can exhaust high-temperature and high-pressure gas continuously after combustion in the independent constant-volume combustion chamber bodies, and continuous air feeding and exhaust of the combustion chamber bodies are achieved; accordingly the air feeding and exhaust efficiency of the combustion chamber bodies is improved, and the fuel and air filling speed of the combustion chamber bodies is improved at the same time. The rotary constant-volume pressurizing combustion chamber is free of a piston compression structure, upper and lower dead centers are absent, and the effective volume can be equal to the volume of the combustion chamber, accordingly the space use rate of the combustion chamber bodies is improved; meanwhile, according to the combustion chamber bodies, friction between pistons and combustion chamber body walls is prevented, so that the mechanical friction loss is small, and the fuel heat use rate of the combustion chamber bodies can be improved.

Description

Technical field: [0001] The invention relates to a combustion chamber, in particular to a rotary constant-volume pressurized combustion chamber adopting constant-volume combustion. Background technique: [0002] Isovolumetric, isobaric and detonation combustion are three commonly used methods for fuel energy release, and isovolumetric and isobaric combustion are the most widely used, while detonation combustion is still in the application research stage. In terms of flame propagation speed, isobaric combustion has the slowest propagation speed, detonation combustion is the fastest, and isovolumic combustion is in between; in terms of pressure, the pressure of isobaric combustion process is slightly reduced, and constant volume and detonation combustion pressure All have a substantial increase; in terms of temperature, the gas temperature of detonation combustion is the highest, followed by isovolumic combustion, and the temperature of isobaric combustion is the lowest. In s...

Claims

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Application Information

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IPC IPC(8): F23R3/42F23R3/58
Inventor 李晓丰肖俊峰王玮王峰
Owner HUANENG POWER INTERNATIONAL
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