On chemical tankers, FPSOs, offshore drilling platforms and hazardous-cargo naval vessels, flammable oil gas and volatile vapors accumulate continuously. Conventional marine air conditioners contain common electrical parts that may generate electric sparks, leading to severe explosion and fire risks. Traditional integral explosion-proof units feature oversized dimensions, making hoisting into cabins difficult and bringing high hull cutting costs for refit projects.

To address HVAC safety demands for marine hazardous zones, Winnex Air develops the Explosion-Proof Split Marine Air Conditioner. It adopts a split structure with full flameproof sealing for all electrical components to eliminate ignition sources fundamentally. Meanwhile, the split design reduces single-unit volume, suitable for new construction and retrofitting of all hazardous vessels and offshore platforms.

Core Explosion-Proof Structural Introduction

The system consists of two independent certified explosion-proof modules: indoor unit and outdoor unit. Refrigerant pipelines and communication cables are connected via flameproof sealed penetration fittings.

Explosion-proof indoor unit: Fans, temperature controllers and junction boxes are enclosed in flameproof enclosures with no live contacts exposed inside cabins. The housing is made of 316L stainless steel with multi-passivation anti-corrosion treatment to resist humid heavy salt mist inside confined hazardous compartments.

Explosion-proof outdoor unit: Compressors, contactors and pressure switches are fully sealed inside standard flameproof chambers. Heat dissipation grilles are optimized as spark-free structure. The whole unit is equipped with heavy-duty shock-absorbing anti-corrosion base for fixed installation on open-air hazardous decks.

All flameproof joint surfaces are machined in strict accordance with ATEX and CCS marine explosion-proof standards to prevent flammable gas penetration into electrical chambers.

Five Differentiated Core Advantages (Distinct from Ordinary Marine Air Conditioners)

● Full-unit Explosion-Proof Certification for Zone 1 & Zone 2 Hazardous Compartments

The unit holds complete CCS marine explosion-proof type approval and ATEX international certification, meeting operation standards for Zone 1 and Zone 2 explosive gas environments at sea. Fans, motors, control cabinets and operation panels are all dedicated explosion-proof components without exposed non-flameproof electric parts, completely avoiding ignition risks from electric sparks and complying with mandatory safety codes for chemical tankers and offshore platforms.

● Split Modular Structure Cuts Hull Modification Costs for Hazardous Vessels

Different from bulky integral explosion-proof air conditioners hard to transport into cabins, this split model allows separate delivery of indoor and outdoor modules with compact single-piece size. Modules can be carried into compartments through narrow explosion-proof hatches without large-scale cutting and reinforcement of flameproof bulkheads, greatly shortening construction periods and hull alteration investment for aging hazardous ship refits.

● Full 316L Stainless Steel Housing & Multi-Layer Salt Mist Barrier for Severe Corrosive Hazardous Marine Conditions

Both indoor and outdoor unit casings are manufactured from 316L stainless steel, treated with passivation and heavy-duty anti-corrosion coatings. Flameproof joint surfaces receive special chloride-resistance processing. Under dual corrosion conditions of oil gas and heavy salt mist, the unit resists rust and sealing leakage over long-term operation, maintaining stable sealing performance of flameproof chambers permanently.

● Spark-Free Low-Noise Air Supply for Constant Temperature Control in Sealed Hazardous Zones

Explosion-proof fans adopt spark-free copper-aluminum composite impellers without open sparks during rotation. Silencing structures inside air ducts lower running noise for duty cabins and explosion-proof control rooms. Dual cooling-dehumidification and electric heating modes are available, paired with explosion-proof multi-stage filters to isolate oil gas dust, realizing constant temperature, humidity and air purification inside confined hazardous compartments.

● Multi-Explosion-Proof Interlock Protection with Automatic Power Cut Lock on Faults

Exclusive explosion-proof control system is equipped with interlock functions including over-temperature chamber protection, gas leakage detection, overload & phase loss protection and linkage shutdown triggered by cabin flammable gas concentration. The system immediately cuts off power and locks operation once overheating or circuit faults occur, preventing ignition sources under abnormal conditions. Remote monitoring of explosion-proof operation status is supported for unified management by platform central control rooms.

● Exclusive Application Scenarios (Limited to Hazardous Marine Zones)

Chemical tankers, product oil tankers, LNG supply vessels, offshore FPSO production platforms, offshore oil & gas drilling platforms, hazardous-duty naval craft, port explosion-proof work boats. Applicable to Zone 1 & Zone 2 explosive gas areas including oil-gas storage compartments, explosion-proof central control rooms, hazardous chemical duty lounges and platform flameproof instrument rooms.

Winnex Air Dedicated Explosion-Proof Full Lifecycle Services

We provide full support including on-site hazardous zone survey, explosion grade matching selection, special design of flameproof penetration pipelines, full explosion-proof factory inspection, onboard flameproof installation guidance, annual explosion-proof inspection technical assistance and global exclusive after-sales maintenance for explosion-proof equipment, fully satisfying survey requirements of classification societies.

Conclusion

Hazardous marine zones impose non-negotiable strict standards on safety performance of HVAC equipment. With three exclusive core strengths – full explosion-proof certification, lightweight split installation, long-lasting anti-corrosion flameproof sealing and multi-layer safety interlock, Winnex Air Explosion-Proof Split Marine Air Conditioner solves common industry defects of traditional explosion-proof air conditioners including difficult installation, fast corrosion and insufficient safety protection. It stands as the compliant, reliable HVAC solution for oil & gas vessels and offshore hazardous platforms.