- Furnace Safety Supervision System
- Ignition Control System
- The Ignition And Combustion Equipment
- Energy-saving Combustion System
- Combustion Test Bench
- PLC Programmed Control System
- Industrial Television Monitoring System
- Flare System
- Intelligent Online Soot Blowing System
- Acoustic Gas Temperature Measurement System(SEI)
- Compressor Optimization Control System(CCC)
http://www.nendar.com
Phone：0516-83899666
postcode：221008
E-mail：xznengda@126.com
Address：Hardware district 1 11，National University Science Park of China University of Mining and Technology，Xuzhou,Jiangsu,China
Intelligent On-line Soot-blowing System
ND shock wave Soot-blower is a new product to remove the surface ash of air apreheater, economizer, super heater and furnace heat exchanger of the large boiler.
During the boiler operation, generated fouling on heat transfer surface will weaken the flue gas heat exchange between the working fluid and the increased flue gas resistance, lower thermal efficiency, increased fuel consumption, affecting the normal operation of the boiler. In industrial boilers, sometimes the tail fouling can cause heat exchanger corrosion and run the risk of operating the boiler. Different types of soot blower means are mostly mounted on large and medium running boilers, e.g., steam ash, hydraulic ash, ash ball, sonic or ultrasonic ash and the like. However, there are different problems exiting on the ash devices widely.
ND soot blower shock wave with high energy, enough to produce a shock wave breaking fouling layer, which has a good effect of soot blower, and its low operating costs, simple operation, safe and reliable.
2.System Components
ND shock Soot-blower consists of three parts: main generator parts, control parts and working parts. Main generator parts include air and gas mixer, mixer ignition, layer distributor and various control valves, pressure sensors and flow rates controlling the intake and layer. Control parts include a control cabinet and the host computer (optional); working parts include shock generator and shock vents.
2.1 Generator Parts
The generator parts is completely controlled by the control part, to open and close each working valves chronologically, determine the amount of gas filling, mixing ratio of gas and air and working-layer selection , and ignite the gas mixture to make deflagration flame and then passed to working part of the shock wave generator through flame catheter.
2.2 Control Parts
ND shock soot-blower is automatically controlled by the control cabinet of the control parts. Operating parameters of the control cabinet can be set, including the work number of the working layer and the intensity control of shock wave, and interval to wait each detonation. It can be equipped with a main control room host computer (optional). The host computer has the same control cabinet and control functions, it can control the implementation of the entire system by taking over control of the control cabinet. Relation between the computer and the control cabinet knob is set by a state of the control cabinet, and this knob is in control. When the control cabinet is in control, the host computer is used as a monitor terminal only; when the host computer is in control, the control cabinet is only used as a control device. The control cabinet communicates with the host computer via a standard serial port.
System of different types of ND shock wave Soot-blower：
Technological flow chart of ND-A shock wave Soot-blower
Technological flow chart of ND-B shock wave Soot-blower 3. Technical Parameters
Type ND Available fuel Acetylene gas Gas or Refinery dry gas liquefied gas lower calorific value MJ/m3 range 51.2~59.1 33.5~42.0 93.1~122.7 Rating 56.4 36.2 108.4 Fuel pressure Range：20.0~100.0 Rating：50 Air pressure Range：2.0~10.0 Rating：4.0 fuel temp, air temp Ordinary temperatures Type Rated energy KJ Work range m3 Work distance m Fuel amount for once (Ⅰ) Acetylene gas (Ⅱ) Gas or Refinery dry gas (Ⅲ)liquefied gas ND-10 10 4 2.0 0.2 0.3 0.13 ND-25 25 8 2.5 0.5 0.7 0.25 ND-50 50 12 3.0 1.0 1.4 0.5 ND-100 100 20 4.0 2.0 2.8 4.0 ND-200 200 35 5.0 4.0 5.6 2.0 ND-400 400 60 6.5 8.0 11.2 4.0 ND-800 800 100 8.0 16.0 22.4 8.0 -Energy concentration, soot blowing thoroughly; soot blowing coverage up to 90% -Temperature drop significantly, significantly improve the efficiency of the stove -Adjustable intensity, for a variety of shocks, viscous and fouling better robustness -Controllable shape, adapt to different shapes of the heating surface -Safe, reliable, automatic control, maintenance -Reasonable price-performance, low running costs
-Soot blowing force can quickly and completely remove all types of fouling ; -Energy intensity is easy to adjust , the best adaptation to different types of fouling has ; -Depending on the type of heating surface , you can choose the shape of the model and spout Soot-blower matching ; -Run the program simple, fully automated and easy to operate , applicability, run periodically soot blowing device and run a short cycle , stable operation ; -For all types of boilers and different types of fouling, you can select the appropriate device type ( to get the right amount of shock energy ) to achieve optimal allocation ; -Shock energy, soot blowing effect is obvious, soot blower speed ; -Shock jet direction can be set by the type and structure of the nozzle adjustment direction , which can adapt to different shapes and structures boiler tubes ; -Because each type of product can work under different initial pressures , and therefore its energy shock has a very wide range stepless adjustable , strong applicability ; -Without any adverse effect on the operation of the boiler or furnace body , to ensure that the furnace walls and heat exchanger tubes without any damage ; -As a result of the special structure of the tank , shock vibration shock soot blower , boiler or furnace external transient noise to meet environmental requirements at work ; -No action moving parts , high reliability, low maintenance ; -Low running costs , any one of the available gas ( LPG, acetylene gas , refinery gas ) , the economy is good , and high efficiency.
