The proven IR-S type infrared flame detector that has been successfully installed in many power plants is combined with the Mitsubishi Power's latest control system, DIASYS Netmation, to create a product called Net IR-S type infrared flame detector. This flame detector product functions as a burner control system and meets the needs of thermal power plants for modern monitoring and control systems.
The sensor unit of Net IR-S is the same as a conventional IR-S sensor, and can be used for any of the following fuels: fuel oil, coal, and gas. In addition, its superb detection reliability, maintainability, and cost performance are maintained.
Furthermore, the decision circuit is built as a module of DIASYS Netmation. It is used along with an upper layer of Netmation to offer an easy-to-use interface. The panel of Net IR-S can be designed so that the Net IR-S works as a stand-alone flame detector system independent from a burner control system.
If you replace a conventional flame detector with this new type, the preexistent equipment can be reused.
Equipment name | Existing methods of flame detection | |
---|---|---|
UV Type | IR Type | |
Sensor unit | Replaced | Replaced |
Flame detector panel | Replaced | Replaced |
Sensor cable | Not replaced | Replaced |
Guide pipe | Not replaced | Not replaced |
Cooling-air piping | Not replaced | Not replaced |
Cooling fan | Not replaced | Not replaced |
Flame detector panel
Flame detector unit
The following is an example of a fuel oil burner,
The specifications of a sensor unit are as follows.
Item | Specification | |
---|---|---|
Type | Explosion-proof (Exd2 BT4), waterproof | |
Dimensions | Entire length | Any value |
Guide pipe | 50A (40A) | |
Detection wavelength | 500~1100nm | |
Allowable temperature |
Sensor tip | Not exceeding 400 deg C |
Inside of guide pipe | Not exceeding 200 deg C | |
Amplifer | Not exceeding 60 deg C | |
Cooling air | Air pressure | [In-furnace pressure] + 150mmAq |
Air flow | 1.5Nm³/min per sensor |
The specifications of a flame detector panel are as follows.
Item | Specification | |
---|---|---|
Dimensions | 2,300mm(H) x 810mm(W) x 800mm(D) | |
Structure | Flame detector unit, duplicated power supply system, terminal unit, duplicated media adapter | |
Output signals |
Flame on | 1a |
Low luminance level | 1b | |
Power loss | 1c | |
Contact capacity | 125VAC/120VDC, 0.5A | |
Ambient temperature | 0 to +50 deg C |
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