Energy-saving principle of energy-saving lamps
The energy-saving lamp operates on the principle of gas discharge. Its name is called self-ballasted fluorescent lamp. In addition to white (cold light), there is still yellow (warm light). In general, under the same wattage, an energy-saving lamp is 80% more energy efficient than an incandescent lamp, with an average life expectancy of 8 times and a thermal radiation of only 20%. In the non-strict case, a 5 watt energy-saving lamp can be regarded as an incandescent lamp equal to 25 watts, a 7-watt energy-saving lamp is about 40 watts, and a 9-watt is equivalent to 60 watts.
The energy-saving lamp is also called compact fluorescent lamp (referred to as CFL lamp in foreign countries). It was first invented by foreign manufacturers in 1978. Because it has high luminous efficiency (5 times that of ordinary light bulb), it has obvious energy-saving effect and long life (it is ordinary light bulb). 8 times), small size, easy to use, etc., has been valued and welcomed by people of all countries and countries. In 1982, China first developed SL-type compact fluorescent lamps at the Institute of Electric Light Sources of Fudan University. Over the past 20 years, the output has grown rapidly. The quality has been steadily improved, and the country has promoted and used it as a national key energy-saving product (green lighting product).
For quite a long period of time, some localities and manufacturers blindly increased the energy-saving lamp project. Because of the lack of funds, technology, raw materials and processes, the product quality was not guaranteed. The product quality is unbalanced, the vicious bidding messes up the market, does not produce according to the process requirements, the assembly plant chooses the unsuitable lamp and components to make up the composition, the quality and price are low, seriously damages the reputation of the energy-saving lamp, and the light effect is low. The short-lived life and poor consistency have caused the energy-saving lamps in the society to save energy and save money, which has brought a great negative impact on the promotion of energy-saving lamps.
After nearly 20 years of continuous exploration and development, China's energy-saving lamp products have made great progress and improvement. Many products have approached or reached the advanced level of foreign countries. Due to the high quality and low price, the competitiveness in the international market is very high. Strong, but there are still a large number of energy-saving lamp manufacturers in the market. They ignore the laws and regulations of the country and disregard the interests of consumers. They are also mass producing energy-saving lamps that are not called "energy lamps" because of their quality and price. Low, each ex-factory price is only about 4~5 yuan. Consumers have limited identification of products. In rural areas and most cities, there is still a large part of the market, because most of the market in the market is occupied by low-end products. It makes it difficult for good energy-saving lamps to enter the market, which brings certain difficulties to the promotion of green lighting. However, with the improvement of consumer awareness and the understanding of energy-saving lamps, the market for good quality energy-saving lamps is in one market. Every day, the market for energy-saving lamps with poor quality has shrunk day by day, which brings us hope and opportunity.
Nowadays, the energy-saving products we talk about are mainly for incandescent lamps. Ordinary incandescent lighting effects are about 10 lumens per watt, and the life expectancy is about 1000 hours. Its working principle is: when the light is connected into the circuit, the current flows through the filament, and the thermal effect of the current causes the incandescent lamp to emit continuous visible light and Infrared, this phenomenon can be noticed when the filament temperature rises to 700K. Because the filament temperature during operation is very high, most of the energy is wasted in the form of infrared radiation. Because the filament temperature is high, the evaporation is also fast, so the life is also Greatly shortened, about 1000 hours or so. The energy-saving lamp mainly heats the filament of the lamp through the ballast. At about 1160K, the filament starts to emit electrons (because some electron powder is coated on the filament), and the electron collides with the argon atom to produce an inelastic collision. After the argon atom collides, the argon atom collides. The energy is absorbed and hits the mercury atom. The mercury atom breaks and generates ionization after absorbing energy. It emits 253.7nm ultraviolet light, and the ultraviolet light excites the phosphor to emit light. The temperature of the filament is about 1160K when the fluorescent lamp works, and the temperature is 2200K-2700K than that of the incandescent lamp. It is much lower, so its life is also greatly improved, reaching more than 5,000 hours. Because it does not have the current thermal effect like incandescent lamps, the energy conversion efficiency of the phosphor is also very high, reaching more than 50 lumens per watt. Installation essentials for energy-saving lamps
1. Ventilation should be good. The operation of the energy-saving lamp will be affected by the room temperature. If the temperature is too high, the luminosity will decrease and the ignition process will be difficult. Therefore, avoid installing it in a sealed place. The lighting and lampshade should be well ventilated to prevent the temperature from rising due to the heat not being emitted, which affects the performance of energy saving.
2. Do not exceed the weight of the lamp holder. Energy-saving lamps (especially the old inductive type) are heavier and heavier than ordinary tungsten filament bulbs. Therefore, when switching to energy-saving lamps, pay attention to the size of the lampshade or lighting. At the same time, you should also pay attention to the lamp holder, especially the multi-bulb type lighting, can support the weight of the bulb. If the lamp holder is found to be loose, it must be replaced or repaired immediately.
3, due to different working principles, energy-saving lamps can not be directly used in the dimming system of incandescent lamps (such as dimming lamps, etc.). In addition, it is important to note that when installing energy-saving lamps, do not hold the lamp to avoid damage.
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