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low failure rate boiler for sulfuration

Product Thermal Capacity: 1 - 20 t/h

Working Pressure: 0.7 - 2 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, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

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Introduction of WNS gas / oil fired steam boiler:

WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.

Technical advantages:

1. Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.

2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.

3. Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.

4. Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.

BLOWDOWN CALCULATION FOR BOILER - Altr

steam can occur. To prevent boiler tube chocking and overheating of the boiler tubes the blow down is necessary. The blow down is the water removed from boiler to maintain the solids level in the boiler drum. This can be calculated as follows: E = Evaporation or steam generation rate. S = Amount of solids (ppm) B = Blow down (m3 / hr)

Boiler Maintenance 101: Low Feedwater Temperature Caus

Dec 31, 2016· Boiler Maintenance 101: Low Feedwater Temperature Causes Boiler Failure. Posted by Greg Frazier on Sat, Dec 31, 2016 @ 02:45 PM Tweet; It’s winter in the Northeast and we are running into the coldest months of the year. If you operate a commercial property, now is not a good time to have a boiler failure.

Tube Failures in High Pressure Boilers - Bright H

There are twenty-two primary reasons for tube failures in a boiler, which can be classified under six major groups. They can be analyzed and corrective and preventive action can taken. Good operating and maintenance practice reduces tube failures. Tube failures during the initial operation period, the normal operation period, and after ten to fifteen years operation show different trends.

The Dangers of Freezing Water & Boilers - HVAC Investigato

File Size: 1MB Jan 13, 2017· As we enter the heart of winter and turn our attention toward cold weather conditions where freezing water can wreak havoc on commercial and residential property, the threat of catastrophic failure to boilers looms large (as seen in Figure 1).. Although failsafes against significant boiler failures do exist and continue to improve, they remain far from perfect.

Reducing Corrosion and potential Boiler Failure wi

corrosion types on condensate and boiler feed water section that will increase the metal that is picked up and transported to the boiler and also the corrosion mechanism in boiler itself due to iron and copper deposit fouling on boiler transfer areas. On section 3 boiler fouling build up due to metal load will be described and analyzed.

The National Board of Boiler and Pressure Vessel Inspecto

Low-Water Conditions . The potential for severe and even catastrophic damage to a boiler as a result of low-water conditions is easy to imagine considering that furnace temperatures exceed 1,800°F, yet the strength of steel drops sharply at temperatures above 800°F.

A Review of the Common Causes of Boiler Failure in t

File Size: 1MB that seriousness of the failure mechanisms warrants their inclusion in this paper. The statistics The statistics encompass a wide range of boiler inspection and failure analysis reports from all over sub-Saharan Africa. The fire-tube boilers covered a steam production range of …

Boiler Safety and Role of Low Water Leve

Low-water level conditions in the boiler occur when the water in the boiler drum falls below the low water level mark. Such conditions have the potential to severely damage the boiler. The furnace temperatures usually exceed 1,800°F (980°C). The strength of steel drops sharply at temperatures above 800°F (480°C). Hence, a Low-water

Steam Boiler Questions and Answe

Question: Boiler drum level control goes haywire We are having 100 tones FBC boilers. Frequent problem observed is that whenever there is sudden load change the boiler drum level control goes haywire leading to tripping of boiler and turbine on drum level low or high.

CHAPTER 39 BOILER WATER TREATME

File Size: 629KB boiler water, calcium will preferentially precipitate as the phosphate before pre-cipitating as the carbonate, and calcium phosphate becomes the most prominent feature of the deposit. At the high temperatures found in a boiler, deposits are a serious problem, causing poor heat transfer and a potential for boiler tube failure. In low-pressure

Common Boiler Problems, Part 1: Low Water Conditio

Even though the use steam boilers have been used in industries since the mid 1800’s, we continue to encounter common problems with their operation. Some of the most common problems include: Low water conditions Improper blowdown techniques Poor water treatment Improper warm-up Interlock testing Training Preventive maintenance Proper documentation Grandfathering old …

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zhulin@zozen.com

No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China

0086-510-68530066, +86-13506151292

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