WNS Three Pass Conical Shell Type Oil ( Gas ) Steam Boiler

Rated capacity：1~20 t/h

Rated work pressure：1.0~1.6Mpa

Adaptive fuel：Natural gas, city gas, blast furnace gas and coke oven gas mixture, biogas, waste gas and gas diesel, heavy oil, light oil, residue and other liquid fuels

Application industry : industrial and mining enterprises, schools, hospitals, etc.

           Main Technical Parameters of  oil（gas）fired  Boiler

1.Structure introduction :

The boiler is a horizontal internal combustion three-circuit wet-back fire tube fast-loading boiler. The boiler body is assembled and shipped from the factory, and the tail is equipped with economizer and condenser to reduce the exhaust gas temperature.  

The boiler body is mainly composed of a drum, a corrugated furnace, a reburning chamber, two sets of smoke pipes, an inspection hole ring, a front and rear smoke box, and an explosion-proof door. The furnace, the reburning chamber, the smoke pipe, and the inspection hole ring are all installed in the boiler shell and completely immersed in the furnace water.

The flue gas flow process is furnace hearth → reburning chamber → first set of flue pipes → front flue box → second set of flue pipes → rear flue box → economizer → condenser → chimney, and the flue gas flows in an S-shaped flow. The insulation layer of the boiler is aluminum silicate refractory fiber, which ensures that the surface temperature of the boiler shell is lower than the national standard, and the heat loss is very small. 

2.    Uniqueness of WNS boiler

a. continuous innovation

Innovation is the company 's survival, Nantong WNS boiler in 2000 with six innovation points in the domestic patent application, patent number : 00241010.9.、

b. energy saving gas

Ⅰ. Gas boiler expensive fuel costs so that owners have to seriously consider how to reduce this expenditure, and the minimum fuel consumption is the subject of our company for many years of tireless research, the company 's design and equipment everywhere the performance of this deliberate pursuit. 

       Ⅱ.The boiler heating surface is rich, the use of efficient heat transfer element threaded pipe, boiler thermal efficiency is high.

     Ⅲ. Configure the energy-saving device and the condenser, within the normal load range neither produce too much condensate, nor make the exhaust temperature is too high.

      Ⅳ. For any type of boiler, the fan pressure of the burner has a considerable amount of abundance, which is enough to overcome the additional resistance caused by the possible installation of energy-saving devices and condensers to ensure that the output of the boiler does not decrease at all.

    Ⅴ.According to the change of the steam pressure at the outlet of the steam boiler, the output of the combustion machine is automatically adjusted and the combustion machine is automatically started and stopped to stabilize the steam pressure in the most suitable range without unnecessary repeated heating and excessive heating.

     Ⅵ.Use the famous European and American brands of burner, and ensure the best match between the boiler and the burner, and automatically adjust the output of the burner according to the boiler load.

      Ⅶ.The proportionally regulated burner can not only operate stably at a desired load, but also save more fuel than the constant size of the fire.

      Ⅷ.The surface temperature of the boiler insulation shell is below 35 °C, and the heat loss is very small.

Ⅸ.High-quality imported valves to avoid leakage caused by the shutdown accident and hot water loss.

c.safe and reliable

      Ⅰ.The overall annealing of the boiler to eliminate welding residual stress, not only improves the safety and reliability, but also greatly extends the service life of the boiler.

      Ⅱ.Gas boiler furnace hearth is longer than the general manufacturers, furnace heating surface is larger, in order to avoid the gas caused by furnace outlet flue gas temperature rise too much.

      Ⅲ.Three-pass full-back structure, the reburning type and the flue pipe in the drum are all immersed in the boiler water. The flue pipe is fully welded with the front tube plate of the reburning chamber, rather than the ordinary angle welding connection. The inner side of the flue pipe inlet is ground into a circular arc to slow down the stress concentration and make the heat transfer easier, effectively preventing the thermal fatigue crack in the tube hole area of the tube plate.

      Ⅳ.Ignition program control, flameout detection and alarm, valve gas leakage detection and alarm, wind pressure and gas pressure detection and alarm to ensure combustion safety.

      Ⅴ.Double boiler temperature display control instruments and safety devices, all use international brand-name products to ensure the safe and economic operation of the boiler.

      Ⅵ.Explosion-proof door, check the door cover and seat are conical shape side seal ( rather than plane seal form ), smoke box door cover convex seal, ensure the good sealing of the boiler.

Ⅶ.Before leaving the factory, each boiler has passed the sealing test of 300mm H2O pressure.

d. Intelligent

Perfect start-up and shutdown procedures, automatic detection of operating conditions and faults, identification and prompts, reliable self-locking and interlocking functions, automatic adjustment of boiler and burner load functions, and imported internationally renowned brand control components not only make the operation of the boiler very simple, but also ensure that the boiler is always in a safe and economical condition.

e.easy to operate，appearance is neat and tidy

Ⅰ.The touch screen on the control system makes you clear about the boiler situation, and the operating parameters can be set at any time.

Ⅱ.Although the manhole device on the top and side of the drum increases a lot of manufacturing costs, it provides great convenience for inspection and maintenance.

Ⅲ.The outer packaging of stainless steel makes the boiler beautiful and durable.

f.Strong technical support and perfect after-sales service

Ⅰ.The regular safety and thermal testing continuously provide complete technical data for the safe and economic operation of the boiler.

Ⅱ.Repeated technical training, and operation guidance until the operator is fully skilled to master the operation, management, maintenance of the boiler skills, to achieve the professional level.

Ⅲ.regular and irregular inspection, commissioning, maintenance, so that the boiler is always in the best condition.

Ⅳ.24 hours a day all-weather service and adequate supply of accessories.

g. Applicable to a variety of fuels, whether liquid fuels such as light oil, heavy oil, residual oil and coal tar, or gas fuels such as natural gas, city gas, blast furnace gas and coke oven gas mixture, biogas, waste gas and gas can be well used.