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The following article was published in our article directory on September 27, 2010.
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LED Lighting Applications in Petrochemical Industry

Article Category: Business Management

Author Name: Amanda xzh

LED is internationally recognized in the 21st century, the most promising next-generation lighting source. Since Edison invented known as the tungsten lighting technology after another great revolution.

Twentieth century, 50 years, the semiconductor gallium arsenide British scientists doing experiments, they found that the electroluminescent material and the low levels of infrared radiation, the discovery led to the birth of the modern light-emitting diodes. In 1962, the first visible light LED by General Electric's Advanced Semiconductor Laboratory developed the technology through continuous improvement, the first commercial red LED package in the sixties, using gallium arsenide phosphide. In the mid-seventies, the production green light LED, using a gallium phosphide. The first blue LED in the nineties there, using GaN. Then, in 1998, integration of RGB LED or blue LED coated with phosphor to produce a white LED, which is a promising and efficient conventional lighting technology. Working on developing ultra-high brightness white LED at the same time, researchers are working to improve LED luminous efficiency. Commercial LED current has reached 130 lumens / watt, LED lighting technology, fully meet the practical, industry standards, access to a wide range of applications.

Performance advantages of LED light source

(1) High luminous efficiency, LED After decades of technological improvements, the luminous efficiency has been greatly improved. Incandescent, halogen light efficiency is 12 | 24lm / W, fluorescent 50 | 70lm / W, sodium 90 | 140lm / W, most of the power into heat loss. The enhanced LED lighting efficiency of up to reach 90 | 200lm / W, and its light color is good, narrow spectrum without the need for colored filters can be sent directly visible. Currently, countries in the world are stepping up to improve the research efficiency LED light, luminous in the near future there will be a greater increase efficiency.

(2) can save power LED single tube power 0.03 | 0.06W, DC drives, single-tube drive voltage 1.5 | 3.5V, current 15 | 18mA, reaction speed, available at high frequency operation. Under the same lighting effects, power consumption is one-eighth of incandescent bulbs, fluorescent tubes half. Japan estimates, such as using fluorescent light efficiency is even higher than twice the LED replacement of incandescent and fluorescent lamps in Japan half of the annual savings equivalent to 6 billion liters of crude oil. Lights on the bridge parapet cases, the same effect of a 40-watt fluorescent lamp, and each with the power LED only 8W, and can be colorful changes.

(3) stable, reliable, long life light field radiation emitting electronic, light and easy burning filament, thermal deposition, light attenuation and other shortcomings. The use of LED lights, small size, light weight, epoxy resin, high strength to withstand mechanical shock and vibration, not broken. Average life expectancy of 10 million hours. LED lamp life of up to 5 to 10 years, can significantly reduce lighting maintenance costs and avoid the pain of constantly changing light.

(4) intrinsically safe, high performance LED low voltage DC power supply (typically: 3.2V forward voltage) low heat, no heat radiation, cold light source, can be safely arrived in touch; can accurately control the angle of light pattern and light, light color and soft, no glare; no mercury, sodium and other potential health hazards of the substances. Built-in micro-processing system to control light intensity, adjusting the light way to achieve light and art.

(5) in favor of solid green LED light for the whole body, shock, impact resistance not broken, waste recycling, mercury, sodium and other elements harmful to the environment. Light, small size, can mix, easy to develop into a short small thin portable lighting products, but also easy to install and maintain. Of course, we consider the use of energy is the main reason for LED light source, LED light source than traditional light sources may be expensive, but with one year of energy-saving light sources to recover the investment, resulting in 4 to 9 years of annual net income times the energy .

The petrochemical industry on the application of LED lamps Explosion Analysis

Petroleum, petrochemical and other chemical industry is the basic livelihood of the industry, lighting equipment, safety and reliability of its production and development play a very important protection. Most of the production and the workplace is flammable and explosive hazardous areas, which decided on the lighting products have unique requirements. LED lighting is mainly used in the following areas:

1, the petrochemical plant area

The main towers, tanks, pipelines and other outdoor or indoor equipment, local area as instrumentation lighting, walkways or other, the configuration of lighting is generally 2-4 meters in height, illumination about the general requirements for 20LUX. Because most of the area is Zone 1 or Zone 0, explosion-proof lighting performance requirements of very strict requirements of proof than the basic level, most of the outdoor areas, requiring lamps have good waterproof, corrosion resistance, while most of the region and even a few meters meters of altitude on the region, high temperature and pressure, lamp replacement and maintenance are extremely difficult. Before the advent of the LED lamps are used in the business is essentially self-ballasted mercury lamp or low pressure increased safety explosion-proof fluorescent lamp, there is low level of proof, waterproof performance is poor low light efficiency, especially in light short life, poor security, change frequent, causing large amount of maintenance work at height more than when an electric shock, falls from a height of the incident, so there are significant security risks. Intrinsically safe LED lamps and long life completely solve this problem, the security needs of the industry determines the application of LED lighting has a very large potential for development.

2, the Pumping Station and other indoor equipment area

Mainly for pumps and other indoor equipment, lighting equipment and instruments, such as region, the configuration of lighting is generally 4-6 meters in height, illumination requirements for 30LUX so. Because most of Zone 1 or Zone 0 areas, too, the explosion of the lamp, waterproof performance requirements are very stringent, and block the formation of the lighting facilities, corner lot, large in size before the lighting installation to the formation of complex non-uniform illumination and glare . LED lamps are small in size and nature of white light to make installation and maintenance is simple, light place simple and comfortable.

3, routine maintenance and emergency lighting class

Main pipelines, equipment inspection, sudden emergency such as proof LED lamps need to move classes. Previously used a halogen lamp as a light source portable battery lights, they not only proof of low performance, short life bulbs, batteries consumed in large quantities, and low brightness, and shorter working hours. Explosion proof LED torches and LED searchlight with its high brightness, long working hours, maintenance staff, etc. to become the new darling of the petrochemical and phase out those conventional emergency lights.

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