Home > Products >WNS series gas-fired (oil-fired) hot water boiler
WNS series gas-fired (oil-fired) hot water boiler

WNS series gas-fired (oil-fired) hot water boiler

WNS series gas-fired (oil-fired) hot water boiler

WNS series gas-fired (oil-fired) hot water boiler

Product thermal capacity:0.7-14 MW

Working pressure:0.7-1.25 Mpa

Available fuel:Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.

Available industries:Heat supplying, hospital, hotel

Send E-mail:allen@zozen.com

Join Us On Whatsapp:Click it to Join in

Introduction to WNS series gas-fired (oil-fired) hot water boiler

WNS series horizontal internal combustion boiler is classic 3-pass wetback oil/gas fired boiler. After fuel is atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, called 1st pass; the high temperature flue gasses are collected in reversal chamber and then enter 2nd pass, which is grooved tube bundle area through heat convection, air temperature gradually falls and flows to front smoke box and enter 3rd pass, which is done in the smooth tube bundle area, and then through back smoke box lead to chimney and exhausted to the atmosphere.

Technical Features

Digitized manufacture
  • The key processes including material cutting, rolling, drilling are made by advanced CNC machining process to reduce the assembly stress and extend boiler working lifetime. 

  • The front and back smoke chamber plates are cut by CNC plasma cutting machine with tidy and beautiful look.
Easy operation and maintenance
  • Fully intelligent operation, with automatic adjustment and protection of burning, water level, temperature and steam pressure. The smoke box door uses the hinge structure for easy inspection, inventory and cleaning.

Long service life
  • The way to weld Smoke tube and tube sheet is to first expand to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boiler service life.

  • Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint are test by radiographic inspection.

  • Fin tube uses ND steel or stainless-steel material to avoid corrosion in the low temperature .

    Inspection stops are set up to guarantee the sequence of expanding and welding to avoid cracking of the tube sheet holes.

Less fuel consumption
  • High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ and reduce heat lost.

  • Sufficient steam storage room and heating area to generate high quality steam and high thermal power.
  • Condenser is added to recycle the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce flue gas emission temperature and increase the thermal efficiency over 98% and save operating cost.

Technical data

Model Rated thermal power(MW) Rated working pressure(Mpa) Rated output water temperature(℃) Rated feeding water temperature(℃)
WNS0.7-0.7/95/70- Y(Q) 0.7 0.7 95 70
WNS1.4-0.7/95/70- Y(Q) 1.4 0.7 95 70
WNS2.1-0.7/95/70- Y(Q) 2.1 0.7 95 70
WNS2.8-0.7/95/70- Y(Q) 2.8 0.7 95 70
WNS3.5-0.7/95/70- Y(Q) 3.5 0.7 95 70
WNS4.2-1.0/115/70- Y(Q) 4.2 1.0 115 70
WNS5.6-1.0/115/70- Y(Q) 5.6 1.0 115 70
WNS7-1.0/115/70- Y(Q) 7 1.0 115 70
WNS10.5-1.0/115/70- Y(Q) 10.5 1.0 115 70
WNS14-1.0/115/70- Y(Q) 14 1.0 115 70

 

Send Inquiry

We guarantee that your information will not be divulged to third parties and reply to you within 24 hours.

Please enter your demand such as Raw material type, Capacity, Feeding material size, Final product size, etc. To become our quality clients will have access to a discount of contract!

  • Product Name(*)
  • Your Name
  • Your Email
  • Your Phone/Whatsapp*
  • Requirements

Contact us

Our sales team is available to respond to any queries you might have on HXJQ. Get in touch using the details below:

address: No.8, Tanxiang Road, Zhengzhou, Henan, China.

Email:allen@zozen.com

Contact Us Quickly
  • Your Name
  • Your Email*
  • Your Phone
  • Your Message*
Related Products
WNS series gas-fired (oil-fired) steam boiler
SZS series gas-fired (oil-fired) hot water boiler
WNS series gas-fired (oil-fired) hot water boiler
SZS series gas-fired (oil-fired) steam boiler
DZL series coal-fired steam boiler
DHL series coal-fired steam boiler
SHX coal-fired CFB (circulating fluidized bed) steam boiler
DHX coal-fired CFB (circulating fluidized bed) steam boiler
SZL series coal-fired steam boiler
DZL series coal-fired hot water boiler
DZL series biomass-fired steam boiler
DHX coal-fired CFB (circulating fluidized bed) hot water boiler
SZL series coal-fired hot water boiler