1. Energy-saving lamps are the progress of incandescent lamps
As we all know, incandescent lamps are an important invention of Edison. This important invention has caused humanity to bid farewell to the darkness and ushered in the light. But incandescent lamps are too power-consuming, and it is probably less than one-tenth of the energy that has become light. Yes, other energy is wasted in vain. So people are trying to replace the incandescent lamp with a new light source. The energy-saving lamp came into being. Because it is cheaper and better to make, so A lot of applications have been obtained, and there is a tendency to gradually replace incandescent lamps.
2. The principle of light-emitting lamps
The two poles of the energy-saving lamp are ordinary tungsten wires. When the tungsten wire is energized and heated, it can emit electrons. A relatively high voltage is applied to both sides of the lamp to form an electric field, and these electrons are accelerated in the lamp tube to form The electron flow of a certain speed and energy. The lamp is vacuumed and filled with mercury, which is what we call mercury. In the case where the lamp is energized and heated, the mercury is evaporated from the liquid state to a gaseous state, and a mercury atom in a free state is formed.
The electrons in the electron flow hit the mercury atom at a certain speed, causing the mercury atom to be excited and become an excited state. It is called a step, and the excited state of mercury spontaneously falls back after a short time. In the original state, ultraviolet light is released at the same time, and ultraviolet light cannot be used for illumination. Therefore, we apply some fluorescent substances on the inner wall of the tube. Under the bombardment of ultraviolet light, the fluorescent substance is excited to emit a relatively natural light. Can be used for our lighting.
The more common energy-saving lamps on the market have general ordinary lamps and three-primary lamps that are gradually becoming mainstream. Compared with incandescent bulbs, they have the advantage of saving electricity. The difference is that the color rendering of ordinary lamps is low, while the lamps of the three primary colors show a natural sunlight color, and the color rendering and light efficiency are better than ordinary ordinary lamps. From the above we can know that mercury plays a mediating role in energy-saving lamps, and no mercury energy-saving lamps will not emit light. There is very little mercury in each tube. The author's factory is a specialized factory that produces energy-saving lamps.
According to the investigation: a thick tube diameter fluorescent lamp with a diameter of 36 mm contains 25 to 45 mg of mercury, and a small diameter tube with a diameter of 26 mm contains 20 mg of mercury and a diameter of 10 mm. The compact fluorescent lamp contains 10 mg of mercury. Mercury is liquid at room temperature and is a flowable silver-white liquid metal. Mercury exists as a gas discharge medium in fluorescent tubes, which not only improves the light efficiency of the lamp, but also enriches the type of light source.
Therefore, current energy-saving lamp sources contain mercury. Since the boiling point of mercury is very low, it can be evaporated at normal temperature. Immediately after the broken fluorescent tube is broken, mercury vapor is emitted to the surroundings, and the concentration of mercury in the surrounding air can be instantaneously 10 to 20 mg per cubic meter. The maximum allowable concentration in air is 0.01 mg per cubic meter. It can also flow with the air. Once the mercury entering the body exceeds a certain threshold, it will destroy the central nervous system of the human body, causing great harm to the body. Mercury is difficult to remove after entering the human body.
The workers in the factory have not been exposed to mercury for more than a decade, but now the body's mercury levels are still high, and mercury needles are still being used at any time. Therefore, the author has an instinctive fear of energy-saving lamps. In fact, there is generally no pollution in the use of mercury-containing lamps. The pollution is mainly caused by the electric light source being discarded after being scrapped. The rupture causes mercury to diffuse into the air, endangering human health and polluting the environment. Due to the difficulty of recycling and the low value of recycling, and its many other ills, the only way is to eliminate it.
3. What are the disadvantages of energy-saving lamps?
1, mercury pollution in the production process and after the use of waste, the current Western countries are paying considerable attention to mercury pollution. People are also increasingly aware of the dangers of mercury pollution.
2, because it is a glass product, easy to break, not good transportation, not easy to install.
3, its power consumption is still too big.
4, easy to damage, short life, energy saving does not save money, this sentence is its best portrayal.
What are the advantages of LED lights?
1, energy saving. White LED energy consumption is only 1 / 8 of incandescent lamps, 1/2 of energy-saving lamps.
2, longevity. Life expectancy of more than 100,000 hours, for ordinary family lighting can be described as "one time and forever".
3, can work in high-speed state. If the energy-saving lamp starts or turns off the filament frequently, it will turn black and quickly break.
4, solid state packaging, is a type of cold light source. Therefore, it is very convenient to transport and install, can be installed in any miniature and closed equipment, is not afraid of vibration, basically does not need to consider heat dissipation.
5, LED technology is advancing with each passing day, its luminous efficiency is making amazing breakthroughs, and prices are constantly decreasing. The era of a white LED entering the home is coming quickly.
V. Why is the preferred corridor light to apply LED
1, at present, the price of LED is still relatively high, the corridor lights are shared facilities, everyone can afford.
2, corridor lights are now commonly used incandescent lamps, if you switch to LED lights, the effect of power saving is particularly obvious.
3. The corridor lights are extinguished during the day. Start or shut down frequently at night. Don't say that it is an energy-saving lamp, that is, an incandescent lamp will be played very quickly. But the LED light is not afraid, because its lighting mechanism is different from incandescent and energy-saving lamps, it is very suitable for high-speed switching work, and will never be damaged for this reason.
4, LED lamp has a long life, it will eliminate the embarrassing situation that the corridor lights often need to be repaired.
Can the LED light directly replace the current corridor light?
No. Since the corridor lights used by everyone are incandescent lamps, they cannot be replaced by LED lights or energy-saving lamps. Therefore, if you want to switch to LED lights, you must also switch to sound and light control switches. Now our company has a dedicated integrated LED sound and light control corridor light, directly using 220V power, very convenient to use.
At present, our company is being commissioned by the relevant units to draft the technical standards for LED corridor lights. Once the technical standards are selected by the Ministry of Construction, they will become the basic standards for building construction. In this standard, we will strongly recommend that the use voltage of the corridor lamp be 24V DC, and the benefits and reasons will be introduced separately.
With the advancement of technology, with the higher pursuit of green life, with the natural decline of LED cost, it is inevitable that LED lights replace energy-saving lamps.
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