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supercritical boilers

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.

CASE STUDY OF SUPERCRITICAL BOILER TECHNOLO

Supercritical boilers have different operational characteristics because of the higher steam temperatures and require more stringent material characteristics than subcritical boilers. The four key components are high - pressure steam, piping and headers, super-heater tubing and water wall

Working Principle of Supercritical Steam Generato

Dec 11, 2017· One basic concept of supercritical boilers is the working pressure and temperature above the critical point of water. If you already understand what is a critical point, then you should be know that above the critical point, water has a very different character than the other phase.

What is supercritical boiler? - Quo

Supercritical steam generator is a type of boiler that operates at supercritical pressure, frequently used in the production of electric power. In contrast to a subcritical boiler in which bubbles can form, a supercritical steam generator operates

Ultra-Supercritical & Advanced Ultra-Supercritic

For the past 100 years GE has been a leader in cleaner coal technology, driving the industry from supercritical to ultra-supercritical technologies. GE's Steam Power has installed 30% of the world’s steam turbine capacity, 30% of the world’s coal and oil-fired boilers.

Reliable and efficient Steam GeneRation SyStemS foR mode

140 once-through boilers, in-cluding 91 supercritical units ranging in size up to 1300 MW capacity, B&W has the ex-pertise to design the world’s highest quality boilers. B&W designed the first supercriti-cal boiler in the United States which went into operation in 1957. From this …

Yuhuan 1,000MW Ultra-Supercritical Pressure Boile

Ultra-supercritical pressure boilers. Supercritical operation of large thermal baseload power plants during the 1980s used steam temperatures of typically 550ºC, leading to approximately 40% thermal efficiencies. Ultra-supercritical steam conditions now use supercritical pressures up to 300bar, with 600°C steam and reheat steam temperatures.

Super critical boiler - LinkedIn SlideSha

Aug 21, 2014· Super critical boiler 1. SUPERCRITICAL BOILER SHIVAJI CHOUDHURY 2. What is SUPER CRITICAL The term "supercritical" refers to main steam operating conditions, being above the critical pressure of water (221. bar). Above the critical pressure there is no distinction between steam and water, i.e. above 221. bar, water is a fluid.

Working Principle of Supercritical Steam Generato

Oct 28, 2018· Supercritical boilers have several advantages not possessed by subcritical boilers: The efficiency ofthe supercritical boiler is higher because to generate the same heat energy, ittakes less fuel

What is the difference between subcritical a

Aug 30, 2018· Supercritical boilers have working range of pressure and temperature above 220.64 bars and 374°C(Critical pressure and temperature of water) .There occurs no bubbles formation in this type of boiler.Drum is not required in supercritical boilers. S

Supercritical - an overview | ScienceDirect Topi

Alireza Bahadori PhD, in Essentials of Oil and Gas Utilities, 2016. Supercritical steam generators are frequently used for the production of electric power. They operate at supercritical pressure. In contrast to a “subcritical boiler,” a supercritical steam generator operates at such a high pressure (over 3200 psi or 22 MPa) that the physical turbulence that characterizes boiling ceases to

Supercritical Boilers | Power | L&T Ind

L&T-MHPS Boilers Private Limited (formerly known as L&T-MHI Boilers Private Limited), our joint venture with the world leading Mitsubishi Hitachi Power Systems (MHPS), executes supercritical boiler islands of up to 1000 MW on turnkey basis, forging its own considerable engineering and project management prowess with the technological muscle of the Japanese giant.

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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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