Detection apparatus and combustion system
AssigneeYokogawa Electric Corporation
InventorShinya Mito
Life of this patent
Estimating the term…
Abstract
A detection apparatus (10) for detecting a backfire in a combustion chamber (31) that burns fuel supplied from a plurality of supply ports includes a light source (12) that outputs incident light to an optical fiber (11) laid around the plurality of supply ports, a converter (13) that receives returned light from the optical fiber (11) and converts the received returned light into an electric signal, a calculator (14) that analyzes the returned light converted into an electric signal and calculates a temperature at a predetermined position of the optical fiber (11), and a detector (15) configured to detect a backfire in the combustion chamber (31) based on the calculated temperature.
Claims10
A detection apparatus for detecting a backfire in a combustion chamber that burns fuel supplied from a plurality of supply ports, the detection apparatus comprising:
- an optical fiber laid around the plurality of supply ports;
- a light source configured by a laser which outputs incident light to the optical fiber;
- a converter configured by a photodiode which receives returned light from the optical fiber and converts the received returned light into an electric signal;
- and
- at least one physical processor, wherein
- the at least one physical processor analyzes the returned light converted into the electric signal and calculates a temperature at a predetermined position of the optical fiber;
- and
- the at least one physical processor detects a backfire in the combustion chamber based on the calculated temperature, wherein
- the optical fiber is disposed on a side of a supply surface plate for the fuel in the combustion chamber, the side of the supply surface plate facing a space where combustion occurs, the plurality of supply ports being provided on the supply surface plate, and the optical fiber being laid so as to surround some or all of the plurality of supply ports.
A combustion system comprising:
- a combustion chamber configured to burn fuel supplied from a plurality of supply ports;
- and
- a detection apparatus configured to detect a backfire in the combustion chamber, wherein
- the detection apparatus comprises:
- an optical fiber laid around the plurality of supply ports;
- a light source configured by a laser which outputs incident light to the optical fiber;
- a converter configured by a photodiode which receives returned light from the optical fiber and converts the received returned light into an electric signal;
- and
- at least one physical processor, wherein
- the at least one physical processor analyzes the returned light converted into the electric signal and calculates a temperature at a predetermined position of the optical fiber;
- and
- the at least one physical processor detects a backfire in the combustion chamber based on the calculated temperature, wherein
- the optical fiber is disposed on a side of a supply surface plate for the fuel in the combustion chamber, the side of the supply surface plate facing a space where combustion occurs, the plurality of supply ports being provided on the supply surface plate, and the optical fiber being laid so as to surround some or all of the plurality of supply ports.
Dependencies are inferred from the claim text.