Jiangsu Huachang Chemical (2018) — Ammonia Compression Package

Lmart manufactured Ammonia Compression Package for Jiangsu Huachang Chemical in China. Built to GB standards, this project demonstrates Lmart’s capability in chemical manufacturing equipment.

Client	Jiangsu Huachang Chemical (2018)
Equipment	Ammonia Compression Package
Design Code	GB
Scope	R717 ammonia • 2 × 1,120 kW compressors

Customer Background

Jiangsu Huachang Chemical is a recognized participant in the chemical manufacturing sector based in China. The company’s operations involve process equipment that must meet stringent safety, quality, and performance standards demanded by the industry and regulatory authorities.

This project required Ammonia Compression Package engineered to GB standards, reflecting the technical demands of the application and the client’s commitment to equipment reliability and regulatory compliance.

Challenges and Engineering Requirements

System Integration and Package Design

Compressor packages are not standalone machines — they are integrated systems combining the compressor, driver, interstage coolers, separators, control panels, piping, and instrumentation on a common skid frame. Every component must be engineered to work together: gas flow paths optimized to minimize pressure losses, vibration isolation designed to prevent resonance between rotating equipment and the skid structure, and control logic programmed to protect the compressor across all operating conditions.

Process Gas Compatibility

Compressing Ammonia Compression Package service in the chemical manufacturing sector requires materials and seal systems compatible with the specific gas composition, including trace contaminants that can cause accelerated corrosion, elastomer degradation, or lubricant breakdown. The design must address gas properties at each compression stage — temperature rise, condensation risk, and molecular weight changes for gas mixtures.

Noise, Vibration, and Mechanical Integrity

Reciprocating and screw compressors generate significant dynamic forces that propagate through the skid structure to the foundation. The package design must account for pulsation dampening, piping flexibility analysis, and anchor bolt sizing to prevent fatigue failures in connected piping and instrumentation. Acoustic enclosures or silencers may be required to meet plant noise limits.

Why Jiangsu Huachang Chemical Selected Lmart

Turnkey package engineering. Lmart provides complete compressor package engineering including process simulation, mechanical design, structural analysis of the skid frame, piping stress analysis, and control system programming — delivered as a factory-tested, ready-to-install module.

Multi-gas experience. Lmart has delivered compression packages for natural gas, BOG (boil-off gas), propylene, hydrogen, chloromethane, and other process gases, each with its own material compatibility, seal technology, and safety requirements.

Workshop integration and testing. Complete packages are assembled, piped, wired, and functionally tested at Lmart’s facility before shipment. Factory acceptance testing includes mechanical run tests, control loop verification, and safety system validation.

Engineering and Manufacturing Solution

Lmart engineered and fabricated Ammonia Compression Package for Jiangsu Huachang Chemical to GB. The scope of supply included complete detail design, material procurement, fabrication, inspection, testing, and documentation.

Key engineering considerations for this project included thermal-hydraulic performance optimization, material selection for the specific process environment, and compliance with GB requirements for design, fabrication, and inspection.

The equipment was manufactured at Lmart’s Zhangjiagang facility, which provides full-cycle fabrication capabilities including plate rolling, head forming, machining, welding (SAW, GTAW, SMAW), post-weld heat treatment, and NDE — all under a single quality management system.

Quality Control and Project Execution

All equipment was manufactured under Lmart’s ISO 9001-certified quality management system with the following key inspection milestones:

• Material verification: Incoming inspection of all plates, forgings, and fittings against mill certificates; PMI spot checks on alloy materials
• Welding quality: All welding performed by qualified welders using approved WPS/PQR; NDE per GB requirements including RT/UT on pressure-retaining welds
• Dimensional inspection: In-process dimensional checks at shell rolling, head forming, and final assembly stages
• Pressure testing: Hydrostatic test to GB requirements, witnessed by the authorized inspector and/or client representative
• Documentation package: Complete data book including material certificates, weld maps, NDE reports, dimensional records, and test certificates

Equipment was delivered to Jiangsu Huachang Chemical’s project site in China, meeting the project schedule requirements.

Results and Business Impact

Lmart successfully delivered Ammonia Compression Package to Jiangsu Huachang Chemical, meeting the project’s quality, schedule, and documentation requirements. The equipment was manufactured to GB standards, with full documentation packages accepted by the client and applicable inspection authorities.

This project reinforces Lmart’s position as a qualified manufacturer for chemical manufacturing applications, demonstrating the company’s ability to deliver equipment that meets international quality and certification standards.

Customer Voice

“The equipment was delivered on schedule and the documentation package was complete. The quality of fabrication met our inspection requirements.”

— Jiangsu Huachang Chemical project team (paraphrased from project review)

Note: Lmart respects client confidentiality. Specific contact references are available upon request during the qualification process.