I.General introduction of Yuanda coal fired water boiler

II.Advantages of Yuanda coal fired water boiler

1.Three pass structure.

Function: ectend the flow of smoke and enhance the heat transfer.  

2. Water-fire tube type. 

Function:Fire tube:the flue goes through furnace, wing-shape flue and fire tubes to form three pass as said in the above.?Water tube:  water in some tubes rises after heating and some declines, which forms  a natural circulation. 

3.Spirally corrugated tube 

Function:heat transfer enhancement, reduce the spirally corrugated tube numbers, and improve the suppleness to avoid the tube plate cracking. 

4.Arched tube plate

Function:reduce the thermal stress of weld and improve the tube plate suppleness,meantime, simplify the structure and save the boiler room space.

5.Wing-shape flue. 

Function:reduce the smoke temperature ??of high temperature tube plate to slow ??down subcooled boiling. In this way, it ??can prevent tube plate cracking, reduce heat ??load of boiler bottom and prevent bulge.

6.Simple circulation loop, large sized down pipe and bottom container. ?

Function: Prevent tube explosion , increase the reliability of water circulation ,avoid deposition of debris and dirt,reduce fuel consumption and improving the operating time of boiler.

7.New type arch made with ?refractory cement by overall pouring and big size furnace.  

Function:Reduce fuel consumption and protect the environment. 

8.Optimally designed water feeding apparatus and steam separation device.

???Function: ?(1).The optimally designed water feeding apparatus reduces overhigh water level in shell high temperature zone due to overheat; ??(2).The

9.optimally designed steam separation device is good for  gravity separation, which makes the steam humidity lower than 1%, obviously lower than national standard of 4%;

Small overall dimensions and low boiler room investment cost. ??Function: The main heating surface is ??installed in the shell, and a boiler with ??less capacity can cancel the rear heating ??surface. Its overall dimension is obviously ??lower than other furnaces. The boiler below ??100 steam tons (70MW) can be arranged in ??single layer, making the investment of the ??boiler room save more than 50% than other ??furnaces;

10..Complete protection device

Function:deal with the situation of overpressure,overtemperature,water shortage and flameout.

Warranty:

One-year warranty and full-life service for all of our steam boilers

Boiler spare parts service:

A full range of original spare parts are available for all Yuanda boilers

Service before sale:

Provide relative technical data for customer choosing equipments,layout drawing,foundation,general grawing.

Service after sale:

Help customer for installation and traing.

Maintenance and repair for one year.