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SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

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Brand Name :QIYAO
Model Number :SCV
Certification :ISO ASME
Place of Origin :China
MOQ :1 set
Price :Customized Product, Quoted Case By Case
Payment Terms :T/T, L/C
Supply Ability :10 sets per year
Delivery Time :24 - 30 weeks
Packaging Details :Seaworth packing
Material :Stainless Steel
Application :Vaporization of low temperature liquid
Applicable liquid :LNG, LPG, liquid oxygen, liquid nitrogen and etc.
Capacity :20~200t/h
Critical equipment :Submerged burner, heat transfer tube bundle
Service life :30 years
Advantages :Quick startup, rapid reaction to load change, adjustable capacity
Scope of work :Design, engineering & equipment supply, site technical support, Project contracting
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SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

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 (30℃only) and strong turbulence in the water bath, which result in a heat transfer coefficient outside the heat transfer tube bundle up to 5800~8000W/(m2·K) 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.

SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

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.

SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

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 Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

SCV package for PetroChina Jiangsu LNG terminal phase II (2014)

Capacity: 200t/h

Successful ignition rate: 100%

Emission: NOx<50ppm, CO<50ppm

China SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H for sale

SCV Vaporization Of Low Temperature Liquid For LMG Terminals 20~200t/H

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