Overview
An LNG Vaporization Supercharger (also known as a forced-draft ambient air vaporizer or pressure-building supercharger) is a specialized heat exchanger designed to rapidly convert liquefied natural gas from its liquid state at -162°C back into gaseous form.
Product Parameters
|
Parameter |
Specification |
|
Vaporization Capacity |
500 – 12,000 Nm³/h (per skid unit) |
|
MAWP (Max Allowable Working Pressure) |
Up to 42.0 MPa (420 bar) |
|
Thermal Safety Margin |
+20% surface area design allowance |
|
Gas Outlet Temperature |
Within ±5°C of ambient (no auxiliary heating) |
|
Pressure Drop |
< 0.05 MPa at max flow |
|
Operating Temperature Range |
-196°C to +60°C |
Technical Specifications
|
Parameter |
Specification |
|
Fin Material |
6063-T6 aluminum alloy (high thermal conductivity) |
|
Liner Tube Material |
316L stainless steel (UNS S31603), seamless |
|
Welding Process |
100% automated TIG full-penetration welding |
|
Structural Frame |
Hot-dip galvanized steel (ISO 1461, ≥85 μm zinc coating) |
|
Wind Load Resistance |
Up to 45 m/s (Zone 4 compliance) |
|
Seismic Design |
IBC Seismic Design Category D |
Applicable Scenarios
Industrial Gasification Plants
Delivers 24/7 continuous baseload gas to steel mills, glass factories, and chemical production lines within ±1% pressure and flow tolerances.
LNG Satellite Stations
Pre-assembled, compact skid footprint engineered specifically for off-grid power generation clusters and mining operations with limited site acreag
Extreme Cold Climates
Engineered with impact-tested materials compliant with a minimum design metal temperature (MDMT) of −40°C (internal shell down to −196°C), utilizing automated sensor-driven defrosting cycles to prevent ice bridging.
Marine & Coastal Terminals
Utilizes ISO 12944 C5-M certified marine-grade coatings, providing a durability range of over 15 years to first major maintenance in high-salinity and coastal environments.
OEM/ODM & Custom Engineering
Prototyping Lead Time: Project-specific engineering packages, including native 3D STEP models and certified P&ID schematics, are delivered within 7 business days after client specification freeze, enabling early EPC interface coordination and layout validation.
Client-Specific Piping: All inlet and outlet connections are fully customized and machined according to project-defined standards, including ANSI B16.5, DIN EN 1092-1, or HG/T 20592 flange systems to ensure direct integration with existing pipeline infrastructure.
Instrumentation Integration: Skid layouts are pre-engineered to accommodate client-selected instrumentation packages, including mounting, welding pads, and wiring junctions for Rosemount, Endress+Hauser, or Yamatake transmitters based on project control system architecture.
As-Built Documentation: Final MDR (Manufacturing Data Report) packages are customized per asset ID, including engraved stainless steel nameplates, project-specific tagging systems, and localized O&M manuals aligned with regional operating procedures and compliance requirements.
Logistics & Packaging
Minimum Order Quantity (MOQ): Fixed at 1 individual modular skid system.
Standard Lead Time: 60 to 90 calendar days following down payment receipt and final drawing sign-off to Ex-Works (EXW) manufacturing completion.
Export Packaging Standard: Vacuum-sealed preservation with heavy-duty polyethylene flange protectors and VCI film inside IPPC ISPM-15 heat-treated timber crates to prevent physical damage and flange face oxidation during ocean transit.
Incoterms: Commercial quotes available on FOB Shanghai, CIF Rotterdam, or DDP Houston terms, depending on project risk allocation.
Freight Optimization: Outer dimensions conform strictly to standard 40ft High Cube (HC) or Open Top (OT) container internal limits to prevent out-of-gauge shipping surcharges.
Documentation Pack: Shipments clear customs with a complete document package: Commercial Invoice, Packing List, Certificate of Origin, and the final Manufacturing Data Report (MDR).
After-Sales Support
Warranty Period: Covered by a 24-month warranty from shipment or 12 months from commercial operation (whichever occurs first), spanning all pressure-retaining components, cryogenic welds, and structural frames.
Spare Parts Availability: Guaranteed 10-year factory inventory retention for critical wear components, including cryogenic gaskets, mechanical seals, and low-temperature fasteners.
Response SLA: Direct hotline to senior service engineers with a guaranteed 4-hour remote technical response and initial troubleshooting alignment.
Remote Diagnostic Audit: Annual thermal efficiency analysis performed via client-shared sensor data trends to optimize defrost intervals and monitor heat transfer degradation.
Maintenance Interval: Static structure requires zero moving parts overhauls, requiring only annual instrumentation calibration and standard valve packing inspections.
Compliance & QC Testing
ASME Certification: Pressure vessels fabricated, stamped, and documented in accordance with ASME BPVC Section VIII Division 1 (U & UM Stamps).
European Conformity: CE marked and compliant with the Pressure Equipment Directive (PED 2014/68/EU) Category IV safety architectures.
Material Traceability: 100% verification of pressure-retaining materials backed by EN 10204 Type 3.1 Mill Test Certificates (MTC) and incoming Positive Material Identification (PMI) alloy analysis.
Weld Quality Assurance: 100% Radiographic Testing (RT) on all pressure-retaining longitudinal and circumferential butt welds; structural fillet welds verified via Dye Penetrant (DP) testing by ASME Section IX and EN ISO 9606-1 certified welders.
Pressure & Leak Testing: Hydrostatic testing at 1.3x to 1.5x design pressure (per ASME BPVC Section VIII), followed by high-pressure helium leak detection down to 1 × 10⁻⁶ mbar·l/s.
Thermal Shock Simulation: Factory validation includes liquid-nitrogen (−196°C) thermal-shock testing to ensure that cryogenic expansion joints withstand rapid delta-T transitions without cracking
FAQ
Q: What is the typical commissioning time after installation?
A: Commissioning usually takes 7–12 days including pressure testing, nitrogen purging, and cold shock validation. Full stable gas output is typically achieved within the first 72 hours of operation.
Q: How many years can the system operate before major refurbishment?
A: Under standard duty cycles, the core heat exchange modules operate reliably for 8–12 years before requiring partial bundle replacement. Structural frames typically exceed 15 years with routine inspection.
Q: What is the expected annual performance degradation?
A: Thermal efficiency decline is typically below 0.6% per year under normal coastal or industrial conditions. Most performance loss is associated with external fouling rather than internal tube wear.
Q: How is icing or frost blockage handled during peak operation?
A: The system uses staged airflow modulation combined with automatic surface temperature balancing. This prevents localized ice bridging even during sustained high-humidity winter operation.
Q: What is the minimum stable operating load?
A: Stable operation can be maintained down to approximately 25–30% of rated capacity without pressure fluctuation issues. Below this range, bypass regulation is recommended to maintain outlet stability.
Q: What is the expected installation footprint per 1,000 Nm³/h capacity?
A: A typical unit requires approximately 180–260 m² depending on piping configuration and maintenance access design. Modular layout allows parallel expansion without major civil modification.
Q: What is the typical start-up response time from cold state?
A: From full cold shutdown, the system reaches stable vaporization conditions within 40–90 minutes depending on ambient conditions. No external heating source is required during start-up.
Q: Are there any verified long-term operational references?
A: The design has been deployed in multiple industrial gas supply projects with continuous operation exceeding 20,000 hours per year. Third-party EPC acceptance reports are available upon request for qualified buyers.
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