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Methanol Fuel Supply System (LFSS)

Methanol Fuel Supply System (LFSS)

Hailida has developed its own methanol fuel‑system compensation device (for which an invention patent has been granted): a single LFSS system can control multiple engines. During sudden load increases or decreases, the pressure remains stable within ±0.3 bar, with an instantaneous response time. If the boost pump in the system loses power, the LFSS can continue to supply methanol fuel to the engine for 10–20 minutes. Moreover, even under over‑control conditions, should the boost pump fail, the system can still deliver methanol fuel to start the engine.

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Ship-to-Shore Emergency Shutdown System (ESD)

Ship-to-Shore Emergency Shutdown System (ESD)

The ship‑shore emergency shut‑off system is an essential device for the loading and unloading of liquefied natural gas, methanol, and various hazardous chemicals. When the vessel’s displacement relative to the shore exceeds a preset limit or an unexpected event occurs, the system simultaneously shuts down onboard and onshore pumps, valves, and other equipment, promptly halting ongoing operations to prevent spills or more serious risks. Based on the ship‑shore connection technical standards recommended by SIGTTO, our company has independently developed this emergency shut‑off system, which has been adopted by numerous users and widely recognized within the industry.

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Liquefied Natural Gas Fuel Supply System (FGSS)

Liquefied Natural Gas Fuel Supply System (FGSS)

Liquefied natural gas (LNG) is characterized by low emissions, high calorific value, and strong economic viability, making it a widely adopted alternative marine fuel today. The company has successfully developed and mastered key technologies including LNG bunkering, cryogenic heat exchange, integrated control and safety systems, pre‑cooling, boil‑off gas management, and pressure containment. It can provide ships with highly integrated, intelligent, cost‑effective, and safe, reliable LNG fuel supply systems.

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Marine Engine Room Monitoring and Alarm System (AMS)

Marine Engine Room Monitoring and Alarm System (AMS)

The ship’s engine-room monitoring and alarm system is the most critical onboard monitoring equipment, capable of replacing manual, real-time inspections and continuously tracking the operating status of key machinery. It automatically triggers alarm signals when parameter deviations are detected. The company’s developed engine-room monitoring and alarm system boasts advanced technology and reliable performance, having successfully passed type approval and product inspection by the China Classification Society, earning widespread recognition within the industry.

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Refueling System Emergency Disconnect Device

Refueling System Emergency Disconnect Device

This system is a core safety‑assurance device for ship‑to‑shore and ship‑to‑ship methanol fuel‑bunkering operations. It enables the safe isolation and disconnection of the bunkering pipeline in emergency situations such as sudden vessel drift or adverse weather conditions, thereby preventing methanol leakage, equipment damage, or environmental contamination.

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Double-wall pipe

Double-wall pipe

Compared with the single‑wall pipes previously used, stainless steel double‑wall pipes offer higher strength, superior sealing performance, and enhanced corrosion resistance, effectively preventing leakage of the conveyed medium and mitigating pipe corrosion. This not only enhances gas supply safety and reduces maintenance costs but also contributes to environmental protection. After years of research and development, the company has successfully overcome technical challenges in manufacturing, assembly, and testing, enabling mass production of large‑diameter stainless steel double‑wall pipes.

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Vapor-to-liquid conversion unit

Vapor-to-liquid conversion unit

The boil-off gas (BOG) reliquefaction unit developed by the company comprises several key modules, including a nitrogen self‑circulation system, a cryogenic section, a reliquefaction stage, a gas combustion system, and an integrated control system. It can reliquefy the BOG from LNG storage tanks and reinject it back into the tank, while simultaneously regulating the tank’s internal temperature to minimize BOG generation.

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Floating Storage and Regasification Unit (FSRU)

Floating Storage and Regasification Unit (FSRU)

A floating storage and regasification unit (FSRU) is a multifunctional system that integrates LNG storage with an onboard regasification facility. Compared with onshore facilities, FSRUs offer lower construction costs, shorter construction timelines, and greater flexibility in site selection. Moreover, FSRUs can be converted from existing LNG carriers, further reducing the construction period and enhancing economic efficiency.

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Energy-saving and emission-reduction system for light diesel-powered vessels

Energy-saving and emission-reduction system for light diesel-powered vessels

It consists of a feed unit, a primary atomization chamber, a secondary atomization chamber, a computer control unit, a display screen (optional), AC and DC power supplies, a discharge unit, and a signal transmission unit. The atomized raw material automatically enters the atomization chamber, where it undergoes high-speed cutting, grinding, and atomization, enabling the uniform mixing and atomization of agents, water, and oil. The resulting mixture is then automatically fed into an internal combustion engine for use. In the operating principle of this new‑type atomizer, two key features are clearly demonstrated:

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