Stainless Steel Submerged Combustion Vaporizer Package Capable Of Rapid Reaction To Load Change - China

Stainless Steel Submerged Combustion Vaporizer Package Capable Of Rapid Reaction To Load Change Submerged combustion vaporizer I Advantages As a critical vaporization equipment for LNG terminals, submerged combustion vaporizer (SCV) mainly functions as peak shaving, supplementary gas source and standby for emergency use.

It is featured by: 1) high thermal efficiency up to 99% and high energy savings; 2) high vaporization capacity and 10%~100% adjustable, rapidly reacting to abrupt load changes; 3) low operating temperature of water bath (30only) and strong turbulence in the water bath, which result in a heat transfer coefficient outside the heat transfer tube bundle up to 5800~8000W/(m2K) and quick start-up; 4) compact design and small footprint; 5) non-freezing at water side; 6) water sprayed to reduce NOX emission II Work principle Fuel gas and combustion air mixed according to specified ratio are completely burned at the combustor.

The hot flue gas is sprayed from the lower end of the heat transfer tube bundle through small ports on the flue gas distributor submerged in the water tank.

The heat transfer tube bundle is separated from the surrounding water tank via a weir plate.

In this way, the turbulence in the limited space enhances the heat transfer among flue gas, water tank and heat exchanging tube bundle.

LNG at high pressure flows in from the heat transfer tube bundle and is changed into high pressure gaseous natural gas through supercritical heat transfer before it is delivered to the fuel gas network.

See the work principle sketch below.

Fig.

1 Work principle sketch of SCV vaporizer III Components & parameters The SCV vaporizer package mainly consists of a submerged combustor, heat transfer tube bundle and such auxiliary systems as air blower, cooling water pump, water treatment device, alkali solution system and NOX control system.

Fig.

2 SCV vaporizer - - - - Type | SCV | Structure | Tube bundle type | Construction material | 304SS/321SS | Manufacturing standard | ASME III | Design pressure | 14MPag | Design temperature | -196 | Design capacity | 20~200t/h | Applicable liquid | LNG, liquid oxygen, liquid nitrogen, LPG | Burner type | Submerged burner (non-pre-mixed combustion) | Fuel gas | Natural gas | Fuel gas consumption | 250~2500kg/h(20~200t/h) | Ignition | Three-step ignition | Flame detector | UV flame detector | Control | PID interlock control | Main measure points | LNG inlet & outlet temperature, water bath temperature | Main interlocked alarm | LNG outlet temperature, water bath temperature | Sealing | Flange | Service life of critical equipment | 30 years | - - - - IV Application SCV package for PetroChina Jiangsu LNG terminal phase II (2014) Capacity: 200t/h Successful ignition rate: 100% Emission: NOx50ppm, CO50ppm

Company Contact:

• Posted By: Shanghai Marine Diesel Engine Research Institute

• Phone: 86-21-51151156

• Address: No. 3111, Huaning Road, Shanghai, 201108, P. R. China, Shanghai , Shanghai , China

• Email:

• Website: https://www.elevatedflaresystem.com

• Business Description: Shanghai Marine Diesel Engine Research Institute (hereafter called as SMDERI) located in Shanghai, P.
  
  R.
  
  China was founded in 1963 and under the jurisdiction of China Shipbuilding Industry Corporation and now is the sole national level research center on marine diesel engines in China.