Horizontal Type Fire Tube Industrial Oil/Natural Gas Fired Steam Boiler Factory In China

Model:WNS Type steam boiler

Structure:Wet Back Fire Tube Three Pass

Rated Steam Capacity:1-25 ton/hr

Rated Steam Pressure:0.7/1.0/1.25/1.6/2.5 Mpa

Rated Steam Temperature:170/184/194/204/225 C

Application:Textile Mill,Food and Beverage,Chemical,Medicine,Light Industry,Rubber,Printing and Dyeing Plant,Paper Mill,Wood Processing,Garment and Laundry etc.

This is a package horizontal- three pass fire tube steam boiler.The bifurcated furnace tank is semi-wet-back structure. The high-temperature flue gas scour the second and third return flue pipes successively, and then the flue gas chamber is discharged into the atmosphere through the chimney.The boiler is fitted with movable front and rear smoke box covers to facilitate boiler maintenance.The boiler is equipped with the world famous burner, adopting the advanced technology of automatic proportional regulation of combustion, automatic regulation of water supply, program start and stop, automatic operation, etc., and has the automatic protection functions of high and low water level alarm, extremely low water level, ultra-high steam pressure, flameout and so on.This type of boiler has the characteristics of compact structure, safe and reliable, simple operation, quick installation, less pollution, low noise, high efficiency, widely used in enterprises, hotels, hospitals, office buildings, civil buildings and other facilities for industrial steam and life and heating steam.

Performance Features:

• 1. WNS series oil fired steam boiler adopts the boiler structure of three passes fully wet back technology.

• 2. The design of furnace heat transfer and flue gas tube radiation heat transfer is reasonable, the boiler layout is reasonable, and the thermal efficiency is high.

• 3. The water capacity of the boiler is larger, and the whole radiation heat transfer and heat exchange technology is adopted, which is especially suitable for medium and large boilers.

• 4. The furnace adopts a unique combustion chamber layout, the whole combustion chamber is located in the center of the boiler water, making full use of radiation heat transfer to heat the boiler water, and the corrugated furnace is used as the combustion chamber so that the combustion is full, the heat exchange is more full, and the thermal efficiency of the boiler is higher.

• 5. The design of the furnace heating surface is simplified, with a larger heating area, smaller stress, more stability, and higher thermal efficiency.

Executive Standard

1. Design, manufacture, assembly, experiment and acceptance of boilers in strict accordance with national and industrial standards, including but not limited to the following standards: GB/T16508 Boiler Shell Boiler, TSG G0001 Boiler Safety Design Supervision Code, GB50273 Boiler Installation Engineering Construction and Acceptance Code

2. The main steel used in the boiler is 20 GB/T3087, which ensures the safety and reliability of the boiler.

3. Welding materials shall be selected according to NB/T47018. Full penetration welding with argon protection shall be performed on the boiler tube.

Safety control system
We design the safety interlock system with multiple protection and alarm functions
- Protection program of automatic ignition
- Locking and protection program of operation
- Protection program of extinction
- Protection program of completion
- Protection program of water pumps (pressure loss)
- Protection program of ignition failure
- Protection program of combustion engine malfunction
- Protection program of combustion engine flameout
- Sound-light alarm of high pressure
- Sound-light alarm of high limit water level
- Sound-light alarm of low limit water level
- Sound-light alarm of super-high temperature of hot water

Technical parameter

What are the available fuel for the oil gas fired boiler?

Oil gas fired boiler could burn both liquid fuel and gaseous fuel. The liquid fuel could be heavy oil, light oil, diesel, furnace oil, bunker oil, LPG (liquefied petroleum gas), etc. The gaseous fuel could be natural gas, city gas, bio-gas, etc.

Whether the boiler can burn dual fuel or multi-fuel?

Steam boiler have oil burner, gas burner, and oil&gas dual fuel burner, we can offer the specific burner based on customers’ requirement.

What is the texture of spirally corrugated tube?

The texture of spirally corrugated tube is 20#.

The brand of burner?

The brands of burner are Italy Baltur, Rellio, Elco, etc.

What is the thickness of combustion chamber?

the thickness of corrugated furnace is different based on working pressure and furnace diameter, generally, the thickness is between 10~18mm, large combustion space, and combustion sufficient.

What is the advantages of fire tube boiler?

This fire tube boiler has compact structure and convenient operation, strong load adaptability, lower water quality requirement, and the failure rate of it is lower than 0.1!

Details of electric control cabinet.

Electric control cabinet adopts PLC touch screen, display in English. It shows working condition details of boiler, such as water temperature, water pressure, exhaust gas temperature, and over-pressure alarm, etc. In addition, the cabinet is used for set up the parameter, record and analyze the operation data, etc.

What is the inlet pressure of gas burner?

The inlet gas pressure is different for different capacity boiler, for example, the pressure for 2 ton steam capacity boiler is about 8~10KPa, while for 4 ton steam capacity boiler is about 18~20KPa.

What is the combustion mode of oil gas fired boiler?

The combustion mode of oil gas fired boiler is chamber combustion. Together with air, the powered fuel (solid fuel - coal dust), atomized fuel (liquid fuel - oil), and vaporized fuel (gas fuel - natural gas) is sprayed into furnace (combustion chamber) for suspension combustion.