Stock Code:060389
Energy saving scheme of municipal engineering of Shanxi Allen electric
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Energy saving scheme of municipal engineering of Shanxi Alan electric

With the development of China's economic construction and the acceleration of urbanization, urban lighting has made great progress, and the energy demand and consumption in the development of urban lighting are also increasing. In & ldquo; XV & rdquo; During this period, the Ministry of construction vigorously promoted the green lighting project in the urban lighting industry, which has achieved remarkable economic and social benefits. However, on the whole, the urban green lighting work has just started, the development is unbalanced, and there are still many problems and weak links. For example, the supporting system related to urban lighting is not perfect, the market supervision system is not perfect, the problems of low efficiency, high energy consumption and light pollution are still prominent, the awareness of saving electricity and protecting the environment needs to be further strengthened, and the energy-saving transformation scheme of municipal street lamps is imminent.

In November 2004, the national development and Reform Commission issued China's first medium and long term special plan for energy conservation, in which & ldquo; Green lighting engineering & rdquo; It is listed as a key project. In 2006, the national development and Reform Commission listed the green lighting project as & ldquo; Eleventh Five Year Plan; One of the ten key projects. In July 2006, the Ministry of construction formulated the "Eleventh Five Year Plan" urban green lighting project planning outline. The outline illustrates the Urban Lighting & ldquo; High efficiency, energy saving, environmental protection and safety & rdquo; According to the guiding principles, it is proposed to take the end of 2005 as the base, the annual urban lighting power saving target is 5%, and the cumulative power saving target of 25% in five years (2006-2010).

It is estimated that urban lighting projects account for about 30% of China's lighting power consumption. In 2006, the power consumption of urban street lamps reached more than 50 billion kwh. With the rapid development of urban construction, the power consumption of street lamps also increased rapidly in the following year. However, most urban lighting projects are mainly inefficient lighting, and the power utilization rate is less than 65%. There is a serious waste of power and great energy-saving potential, It is imperative to save energy in urban lighting projects.

The waste of street lamp power exists in the following aspects:

1. Running waste & mdash& mdash; The power supply quality is poor. Due to different periods, the power grid load changes greatly, and the voltage fluctuation of street lamp power supply line is also large. When there are many pedestrians and vehicles in the middle of the night, the power consumption for the seam is peak, the voltage is low and the brightness is dark. In the second half of the night, the grid load drops and the voltage rises, resulting in unusually bright illumination. The fluctuation range of breaking voltage in urban lighting project is as high as & plusmn; 15%, which is bound to increase the conversion ratio of electricity and heat, reduce the power efficiency of lamps and lanterns, and cause a waste of electric energy. At the same time, the headlamp with voltage fluctuation is easy to be heated continuously and damaged prematurely, resulting in short service life of the lamp, requiring frequent repair, maintenance and replacement of lamps, increasing the maintenance cost. 2. Line waste --- the power supply line of headlight is long and the power factor is low. In most sites, it is only about 0.5, and the line loss is large; At the same time, the lamps of the urban lighting project are powered by 220V single-phase voltage, and there is serious three-phase imbalance in the lines under power consumption, resulting in excessive zero sequence current, zero displacement, three-phase asymmetry, and large circuit loss. 3. Indirect waste - before the extensive management, most urban lighting projects had simple line control, did not monitor, record and count the operation results, relied on a single timing or manual control, and found equipment abnormalities only by staff patrol during the day or at night. Especially in large and medium-sized cities, a large number of manual inspections can not find faults in time, and the efficiency of dealing with equipment faults is also very low, wasting a lot of human and material resources. Leica energy conservation company has successfully implemented the system power-saving transformation for many domestic urban lighting engineering power systems through the integrated power efficiency management mode for many years, significantly reducing the power cost of urban lighting engineering. Implementation steps of street lamp integrated power efficiency management solution: 1. Energy saving information consultation; The energy-saving project manager and technical engineer of Leica energy conservation company provide street lamp energy-saving information consulting services for urban lighting engineering units free of charge, including the operation status of street lamp energy-saving technology, economic analysis of street lamp energy-saving technology transformation, consultation of energy-saving related technologies, etc. 2. Energy efficiency audit; The energy-saving technical engineer of Leica energy conservation company will conduct the whole process monitoring of the power consumption of the urban lighting project, comprehensively test or understand the quality of transformers, lines and power grids in the power supply system, and audit and budget the power consumption energy-saving space of the urban lighting project. 3. Energy saving transformation scheme design; After technical exchange and data analysis, Leica energy-saving engineers tailor-made economic energy-saving transformation schemes for users according to the power consumption of street lamps, including energy efficiency of urban lighting projects, energy-saving space calculation, effective energy-saving measures, energy-saving product customization, project implementation plan, energy-saving benefit analysis and return on investment. 4. Formulate investment plan; According to the specific situation, formulate a variety of energy-saving engineering project implementation plans for the user units to choose (such as one-time comprehensive transformation or phased and batch transformation), and determine the energy-saving project investment scheme. 5. Equipment selection or customization; Leica energy saving company's street lamp energy-saving product series includes both conventional products and customized products according to users' different needs for street lamp control, function and management. 6. Construction scheme design; Street lamp energy-saving equipment has strict requirements for construction and installation. Before the construction of energy-saving project, Leica energy conservation company's project team will understand and calculate the urban lighting project site in detail, and design a scientific and rigorous energy-saving project construction scheme, including construction time, construction progress, project division, installation location, installation process, protection requirements, auxiliary material specifications, etc, To ensure the best effect of energy-saving project implementation. 7. Construction, installation and commissioning; The on-site construction shall be carried out in strict accordance with the requirements of the construction scheme of energy-saving project, and the system commissioning and trial operation shall be carried out after the construction is completed. 8. Operation improvement, maintenance and maintenance; After the construction of the energy-saving project, Leica energy-saving engineers will always understand the operation of the energy-saving system, timely improve or adjust the operation of the energy-saving system, regularly maintain and maintain the energy-saving system, and provide users with full after-sales service support, so as to ensure that the enterprise can reap the best energy-saving benefits that are relatively stable and long-term. 9. Energy saving and benefit evaluation; After the implementation of the energy conservation project, because the street lamp operation load and time are relatively stable, recording electricity consumption in the same time period, the direct electricity saving benefits can be calculated. At the same time, because the implementation of energy saving projects can prolong the service life of bulbs and reduce the replacement cost of bulbs, the comprehensive income of energy saving projects will be more obvious. 10. After sales value-added services; After sales value-added services include: establishment of special customer files, irregular return visits by technicians, review of power-saving effects, functional upgrading of energy-saving equipment, lectures or training on energy-saving knowledge of urban lighting engineering, etc.


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