Anti explosive lighting fixtures: refinery safety and efficiency lighting protection

As the core link of the oil and gas industry chain, the refinery’s production environment is filled with flammable and explosive gases [such as hydrogen, hydrogen sulfide], high-temperature and high-pressure equipment and corrosive media.

Ordinary lighting equipment is difficult to meet the stringent requirements of such high-risk scenarios, and Anti explosive lighting fixtures by virtue of its professional design, technical advantages, into a refinery to protect the safe production and enhance the operational efficiency of the necessary facilities.

First, why must refineries use explosion-proof lighting?

1. Eliminate the risk of explosion, to protect the safety of personnel

Refineries in the volatile gas leakage risk is extremely high, ordinary lamps and lanterns sparks or high-temperature surface may cause catastrophic accidents.

Anti explosive lighting fixtures approved explosion-proof structure [Ex d] or increased safety design [Ex e], the internal arc, sparks and the external physical isolation of the hazardous environment, in line with ATEX / IECEx Class I, Zone 1 guidelines to ensure safe operation in hydrogen, hydrocarbon gas mixture environment.

2. Durability for complex working conditions

The refinery equipment is exposed to high temperature (up to 80℃), high humidity, acidic steam and other harsh conditions for a long time.

Anti explosive lighting fixtures using 316L stainless steel shell and ceramicized silicone seals, approved IP68 protection level, WF2 corrosion certification, resistance to H₂S, Cl₂ and other corrosive gases, the use of life up to 100,000 hours.

3. Energy saving and operation and maintenance improvement

Traditional metal halide lamps have high energy consumption and need to be replaced frequently, while the LED explosion-proof lighting luminous efficacy of 160lm / W, with intelligent dimming system, can reduce energy consumption by more than 40%. Its modular design to help high-speed maintenance, reduce the frequency of overhead work, especially for distillation towers, reactors and other overhead areas.

Second. Anti explosive lighting fixtures in the refinery core application scenarios

1. Distillation tower and catalytic cracking unit area

Such areas of gas concentration fluctuations, lamps and lanterns need to be both explosion-proof and shock-resistant performance. Anti explosive lighting fixtures are equipped with anti-vibration bracket, tempered glass cover, which can resist equipment vibration [5-2000Hz frequency range], and at the same time, supply 120 ° wide-angle lighting, covering a diameter of 30 meters.

2. Tanks and loading/unloading platforms

Tank tops and loading/unloading areas are easy to accumulate flammable vapors, and the lamps must meet Zone 0/1 explosion-proof rating. Adopting non-sparking aluminum alloy Anti explosive lighting fixtures with anti-static coating to avoid the risk of static-induced ignition. Some models are integrated with gas concentration sensors, which can be linked to the alarm system.

3. Control room and emergency access

In emergency evacuation scenarios, Anti explosive lighting fixtures with built-in dual-channel power switching function can continue to illuminate for more than 90 minutes after power failure. Its low-glare design [UGR<19] can reduce visual fatigue of the operator and improve the monitoring accuracy.

Third, the refinery special explosion-proof lighting technology breakthroughs

1. Directional heat dissipation and temperature control

Approved nano thermal conductive coating and vortex duct design, the surface temperature of the lamps and lanterns is lower than 80 ℃ [T6 group], to avoid high temperature triggering spontaneous combustion of gas. Thermal redundancy technology ensures stable operation of the heat dissipation system in case of localized failure.

2. Optical system upgrade

Adopting asymmetric light distribution lens to project the light accurately to the working surface and reduce the loss of scattered light. Explosion-proof industrial and mining lamp series spot uniformity of more than 85%, compared with the traditional lamps and lanterns to enhance the effective illuminance by 30%.

3. Intelligent management integration

Support DALI/0-10V dimming protocol, and refinery DCS system linkage, the implementation of automatic adjustment of brightness by area, time.

IOT models can monitor the temperature, power consumption and fault status of the lamps in real time, and push warning information to the operation and maintenance terminals.

Fourth, how to choose the refinery explosion-proof lighting compliance?

Certification compliance: must obtain ATEX, IECEx or GB3836-2010 certification, applicable Zone 1/21 area.

Environmental suitability: high-temperature areas selected T4-T6 group of lamps and lanterns, corrosive environments preferred 316L stainless steel shell. Energy efficiency indicators: LED light source light effect ≥ 140lm / W, color rendering index Ra> 80, to ensure the accuracy of equipment inspection.

Convenience of operation and maintenance: choose the snap type quick installation structure, hold to help without resting electricity to replace the light source module.

FAQ: Refinery Anti explosive lighting fixtures common questions

Q1：Can explosion-proof lighting be used in Zone 0 area?

A: You need to choose Ex ia grade intrinsically safe lamps and ensure that the power of the equipment ≤ 30W, and approved by the third-party explosion-proof certification body testing.

Q2：What should I pay attention to in the daily maintenance of refinery lamps and lanterns?

A: Every 6 months to check the sealing ring elasticity and surface corrosion, use neutral detergent to wipe the shell, prohibit the use of high-pressure water gun direct spray wiring chamber.

Q3: Does the intelligent dimming function affect the explosion-proof performance?

A: The dimming circuit should be encapsulated in an independent explosion-proof cavity and approved intrinsically safe barrier isolation to ensure that the signal transmission does not generate dangerous energy.

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