High Efficiency Natural Gas Fired Steam Boilers For Food Sterilizer Autoclave​

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.

WNS series automatic oil-fired (gas) steam boiler (utility model patent), adopts horizontal three-return wet back structure, improves boiler operating environment, improves boiler efficiency and improves boiler service life;All flue gas channels are placed in water, and the tail is equipped with waste heat tank and perfect heat preservation outsourcing design. The smoke box is sealed with labyrinth structure to avoid the smoke box leakage phenomenon.The boiler's thermal efficiency is as high as 91% and adopts a combination of corrugated furnace and conical furnace with good expansion performance. The size of the furnace is consistent with the flame, and the flue gas circulation area is reduced to make the flue gas flow at the same speed, which ensures the heat exchange time of high-temperature flue gas in the furnace and achieves the best heat transfer effect.Adopt the high performance combustion machine that matches the boiler perfectly, carry on the comprehensive automatic adjustment, make combustion full, save fuel, reduce pollution;The ultra-fine glass wool with high thermal insulation performance has less heat dissipation loss.Intelligent energy saving control system is adopted to control the boiler and steam supply (water supply) system, and fuel supply is adjusted according to different loads to be more energy saving.The installation method is integrated quick installation boiler, with small vibration, no special requirements for foundation, no need for anchor bolts, easy installation.The movable furnace head structure can match various burners, replace the furnace head, and maintain the furnace body quickly and conveniently.The front and rear smoke box adopts movable detachable structure, which is convenient for inspecting, maintaining and maintaining the boiler interior. It is simple and convenient, with novel product design, reasonable structure and good process performance. It makes the product have outstanding quality and is a newly developed new boiler.

Boiler Features:

1. The design, production, supervision and inspection of boilers are strictly in accordance with the Safety Supervision Regulations for Steam Boilers, JB/T 10094-2002 General Technical Conditions for Industrial Boilers, and JB/T 1619-2002 Technical Conditions for Boiler Body Manufacturing, so as to ensure long-term safety and stability of boilers.

2, the body for the pot shell type full wet back downstream three return firework tube structure, the flame in the large combustion chamber micro positive pressure combustion, complete extension, low burning heat load, less NOx emission of harmful substances.

3, corrugated furnace and threaded pipe structure, that is, to improve the strength, but also to meet the needs of the heat expansion of each part.

4. Butt joint is adopted in the welding of the main welding seam, and non-destructive inspection is conducted by X-ray and ultrasonic to ensure that the welding quality meets the national requirements.

5, the boiler water volume and gas space is large, strong capacity to adapt to the load.Reasonable design of boiler installation, to ensure that the steam water rate is less than 4%, to meet the higher requirements of users on the quality of steam.

6, the use of new heat insulation material, light weight, less heat loss, good insulation performance.

7. The water level alarm adopts stainless steel as electrode rod and teflon as insulation material.Inserted from the top, not easy to hang dirt, reliable performance, long service life.

8. The front and rear smoke boxes are connected by hinges, which can be easily opened, convenient for maintenance and maintenance.

SAFETY FEATURES

Real-time monitoring of water level: Electronic water-level detecting device

Water shortage protection: The combustion control system power will be cut off when there is water shortage along with alarm.

Leakage protection: The power will be cut off when there is leakage detected by the control system.

Over pressure protection: When the pressure is over the preset value, the combustion control system power will be cut off along with alarm.

Steam Safety Valve automatically opens to reduce pressure should excessive steam cause pressure build-up.

Steam Pressure Gauge allows visual observation of steam pressure over full range.

Manual Reset Pressure Control provides high limit pressure cut-out with manual reset.

Complete gas manifolds and protection system for gas boiler: Strainer, pressure regulating valve and magnetic valve

Flue gas monitoring device can detect the flue gas temperature automatically.

Technical Parameter

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.

Boiler picture

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?

Sitong 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.