The current status and technical characteristics of domestic intelligent lighting power-saving equipment for enterprise platform Zou Changmao S Han Qingjun 2 (1. China Energy Conservation Association 2. Beijing Mingda Tianzheng Electronics Co., Ltd.) With the development and application of various cutting-edge technologies and new materials, with the help of high Scientific and technological means to effectively control the cost of electricity for enterprises has become a reality. For enterprises, if they can effectively control power consumption and reduce the cost of electricity for enterprises, enterprises are willing to accept and invest. According to the analysis, energy-saving investment is a long-term high-return investment, and enterprises will receive an annual return on investment of at least 60%. The authoritative media of the United States, The Wall Street Journal, has conducted extensive and in-depth investigations on various forms of investment. The conclusion is that energy-saving investment is the fastest and most secure investment method. In foreign countries, as a new investment method, energy-saving investment has been rapidly popularized because of its simplicity, short cycle and high return.
2. Excessive consumption of electric energy in power supply At present, in the process of power supply and transportation, the domestic power supply unit tends to transmit at a higher voltage in order to avoid line loss during the transportation process, so as to ensure that the terminal electrical equipment reaches the rated voltage. This is a need for technical support. In the absence of superconducting materials to widely replace existing copper-based transmission lines, this situation will exist for a long time.
Due to the high voltage transmitted by the power supply unit, the user side power supply (on the previous page) is quickly and accurately balanced, saving the energy consumption of the system circulating pump, reducing the investment of the entire system balancing valve, and reducing the workload of the system balancing. To reduce the noise generated by temperature deviation and pressure imbalance, improve the comfort of the room, and facilitate the timely detection and correction of system misalignment, VarioQ temperature control valve can also clean up the pollution generated by hot water in the case of system operation. . Therefore, VarioQ can still operate safely and efficiently under the condition of poor water quality of the heating system. This product is fully compliant with the most stringent EN215 standard in Europe and is the most advanced radiator temperature control device in the world.
According to the investigation of our company's engineers in Germany, Germany has used energy-saving radiators for temperature control valves for more than 40 years, and the energy saving is 30%. What is even more rare is that the use of temperature control valves has enhanced the energy-saving awareness of end users. When energy conservation and environmental protection become the concept of people's life, human water and blue sky is no longer a dream.
After the transformer is transformed and converted, its output voltage is generally higher than 5% and 10% of the rated voltage. Thus, the voltage actually consumed by the user's various electrical equipment tends to be higher than the rated voltage at the time of design. For buildings with power equipment, considering the large starting current of these large equipments, the grid voltage will suddenly drop. Therefore, when adjusting the output voltage value of the transformer, the user often adopts a state higher than the rated value to ensure the load. In the case of sudden increase, the normal use of all electrical equipment. However, the long-term higher voltage not only does not allow the electrical equipment to work more effectively, but rather becomes the main cause of heating and premature failure of the equipment. The higher voltage also generates unnecessary electricity bills, which increases the loss of the motor and greatly degrades the life of the lighting fixture. Especially in the lighting system, working under long-term over-pressure conditions, not only the energy consumption is greatly and meaninglessly increased, but also the life of the lamps is far lower than the design value, and even the phenomenon that the energy-saving lamps are “saving electricity and not saving moneyâ€.
Third, the lighting power-saving equipment technology classification At present, the various technologies commonly used in domestic lighting-specific power-saving equipment are mainly divided into two categories: "SCR-controlled power-saving equipment" using thyristor technology; One type is "reactive power-saving equipment" that uses electromagnetic conversion technology. The former has low cost of the original device and high profit margin of the finished product, so some manufacturers try to promote such products in China. However, since the thyristor application is a chopper-type step-down principle, that is, a part of the complete sine wave is removed, a large amount of power harmonic pollution is generated, which not only seriously affects various gas discharges that require high quality of the power waveform. The normal service life of the lamps, resulting in frequent flashing of lights (especially electronic ballasts, energy-saving lamps), ballast noise and even sudden flashover, will increase the heat of the entire user grid, increase line loss The air open and the contactor malfunction, and the heat of each contact and the electrical connector is also very likely to cause fire and bury a safety hazard.
Compared with the thyristor chopper type power-saving device, the reactive lighting power-saving device uses electromagnetic conversion technology, and the output is a complete sine wave, which does not generate any power harmonics, and can not only greatly save the lighting energy. Consumption, double the life of the lighting fixture without reducing the user's lighting quality. Although its manufacturing cost is much higher than that of the thyristor chopper type power saving device, since its service life is more than three times that of the former, the latter is more economical only from the perspective of the user's investment. More critically, savings at the expense of reduced lighting quality and electrical safety are not worth the cost for the user.
In fact, due to its mature technology and scientific science, reactive lighting power-saving equipment has been widely used in foreign countries such as the United States, Canada, Germany, Australia, Japan, South Korea, Singapore, Hong Kong Special Administrative Region and Taiwan. In recent years, street lighting in domestic hotels, shopping malls, airports, industrial and mining enterprises, government agencies and other enterprises and municipal roads has also been used more and more. Moreover, from the perspective of existing users, such products reflect good results.
4. Intelligent lighting power-saving products and applications At present, there are many brands of reactive lighting power-saving devices that use electromagnetic conversion technology in China, such as Boier, Liuhe, Gaohe, etc., here only Borel Intelligent Lighting Festival Take electrical appliances as an example to introduce their technical characteristics and applications.
The lighting energy-saving equipment introduces and applies the American lighting energy-saving power supply technology and core components, and adopts a microprocessor-based digital control technology to optimize the voltage of the lighting power supply system to ensure that the lighting power supply system always works in energy saving and high efficiency. Good working condition. It is also the green energy-saving product of the “China Green Lighting Project Promotion Projectâ€.
The lighting power-saving device is suitable for a pure light source or a mixed light source of various gas discharge lamps (non-resistive lamps and the like) of fluorescent lamps, energy-saving lamps, high-pressure sodium lamps, metal halide lamps, etc., which can obviously improve the power factor of the illumination system and reduce reactive power. Loss, average power saving rate is above 20%; reduce the working temperature of lamps, ballasts, switches and lines, extend its service life by more than 50%, reduce maintenance costs; equipment installation is convenient, and does not change the control of the original line State and usage, no need for special operation management, safe use, stable performance, normal operation in various environments; host life is more than 50 years, the whole machine is guaranteed for 10 years.
(1) Reduce the operating temperature of the circuit and reduce the active loss. By increasing the power factor of the lighting circuit system, precisely adjusting the voltage and current amplitude, reducing the operating temperature of the lamp and the line, thereby minimizing the power consumption of the lighting circuit and equipment. To achieve the purpose of saving electricity.
Inductive lamps such as fluorescent lamps, high-pressure sodium lamps, and metal halide lamps that are currently used are widely used because of their high luminous efficiency. However, inductive luminaires have obvious drawbacks in the use of electrical energy. First, the power factor is relatively low, and the general power factor is about 0.6. Secondly, the heat of the ballast consumes a large amount of electric energy; in addition, the working temperature of the lamp is high, shortening its service life and increasing the maintenance cost.
Because the product introduces advanced technology from the United States, it adopts a fully automatic reactance regulator specially designed to implement regulated power supply to the circuit and has self-balancing function (automatically balance the output voltage between AN/BN/C*N), which utilizes non-phase-controlled adjustment. The patented technology can automatically adjust the power factor according to the load condition in the circuit, which can effectively reduce the inductive current in the circuit. The net boost value of the power factor is 0.050.25, which can smoothly reduce the current amplitude of the circuit while improving the power factor. . Due to the increased power factor of the system, the luminaire can work normally under low current conditions, and the current amplitude is reduced, which also effectively reduces the operating temperature of the system, thereby significantly reducing the active loss of the system. Due to the increase of the system power factor, the reactive power loss of the system is also greatly reduced.
Bor smart lighting saver is energy-saving by improving the use efficiency of electrical appliances and reducing energy consumption. It is different from the ordinary step-down transformer. The ordinary transformer reduces the power factor and efficiency of the circuit proportionally while reducing the supply voltage. Therefore, after the transformer is stepped down, the luminaire can not work normally, and the Bo is used. Intelligent power saver, the lighting system can work normally under low current conditions.
It is fundamentally different from ordinary capacitor compensators. Capacitance compensation is simply to compensate the circuit for reactive power, but it can not reduce the active loss. This product can reduce the active loss and reduce the reactive loss.
In 2002, Guomao Hotel invested 18,500 yuan to install lighting intelligent power saver, and the control load was the lobby lighting of the first floor of the hotel. All the lamps were energy-saving lamps. According to the statistical analysis before and after the installation of the equipment: the annual power consumption was 5205kWh before use; the annual power consumption after use was 3973kWh; The electricity saving rate is 23%; the annual electricity saving is 16115 yuan; the investment recovery period is 1.1 years; the financial net present value = 787,000 yuan (the equipment service life is 50 years).
Example 2: Beijing Xinghai Piano Factory began to use lighting intelligent power saver in 2002 to control the load to produce lighting for the workshop. The lamps are mainly fluorescent lamps. According to the statistics after installation, the daily power consumption is 76.5kWh; the daily consumption after use The electricity consumption is 57.3kWh; the electricity saving rate is 25%; the annual electricity saving is 40,480 yuan; the investment recovery period is 1.5 years; the financial net present value is 2,975,280 yuan (the equipment service life is 50 years); the number of lamps replacement is reduced by 85.
Cotton Bi-Stretch Fabric,Black Cotton Fabric,Custom Bi-Stretch Fabric,Cotton Textile Fabric
Shaoxing Anze Textile Co.,Ltd , https://www.anzefabric.com