Wetback Three Passed 1mw gas oil fired hot water boiler for central heating system

300,000-4,200,000 KCal/H Natural Gas Diesel Oil Fired Hot Water Boiler for Hotel Greenhouse School 

1.Model:WNS hot water boiler

2.Capacity:350kw to 14000kw(0.35MW to 14MW)

3.Pressure:atomosphere pressure or 0.7Mpa or 1.0Mpa

4.Hot water temperature:85 /95/115 degree

5.Design fuel:natural gas, lpg,lng,cng,biogas, diesel oil,heavy oil

6.Structure: three pass fire tube wet back

WNS series atmospheric horizontal fuel(gas) hot water boiler is a kind of horizontal internal combustion wet–back shell boiler,it is constructed by shell,internal furnace,smoke-circling box,flue tube and etc,it adopts the import burner and such fuel as light oil,heavy oil,city gas,liquid fuel and etc.

The combustion chamber adopts the waveform internal furnace or the direct-shape internal furnace,and the wet back structure with buffwelding,thus avoding the characteristic that the back tube board is easy to be burnt out caused by the flushing of high temperature smoke gas,and ensuring the safety running of the boiler.

The smoke gas adopts the three-return design,and the smoke tube adopts the spiral spirally corrugated tube:the tubolator is inserted inside the smoke tube,thus increasing the convection heat transfer area and enhancing the heat transfer effect,the condersing heat exchange can be additionally arranged at the sensible heat and latent heat in the smoke gas,thereby improving the thermal efficiency of the boiler(95%)

The design adopts high quality brand burners, valve accessories are selected imported or domestic products, the boiler can implement automatic regulation of load, pressure, water level, and has water shortage, overpressure, flameout, dry burning temperature control and other multiple automatic protection functions, with high safety and reliability.This product leaves the factory after being tested and qualified, it is the ideal heating equipment for industrial and mining enterprises, service industry and other users.We will strive to provide first-class after-sales service to ensure the safety and economic use of users.

Boiler performance advantage

Universal technology conditions for small atmospheric pressure hot water boiler and its relevant standards:therefore,its quality is fine,static pressure test and hot test are carried out on the boiler before delivering.Using the machine imported burner, pressure atomized, complete combustion, low noise, safety, efficiency and environmental protection index which conform to the national requirements.

The boiler body and expansion tank is linked together, expansion tank straight-through atmosphere, atmosphere operation, all safe hidden trouble.

The running of the boiler realizes full-auto control:the water temperature of the exit is automatically adjusted::the autoignition procedure of the boiler is started ,multiple alarming and interlocking protection devices like deaquation,overheating and flameout are prepared to ensure boiler to run effectively,safely and reliably.

This series boiler is horizontal three pass fire tube hot water boiler.It equipped with good performance burner and advanced techniques.The burning control, water feed,programs run,etc,are full automatic.This boiler is safe and reliable, and also has the advantage of compact structure,simple operation,easy installation, high efficiency ,less pollutionand noise,etc.It is widely used for factory, hotel, hospital, office building, etc.

Boiler Specification

Boiler accessory