Recently, the largest-scale DC-powered urban-level intelligent LED street lamp renovation project implemented by China Southern Power Grid Integrated Energy Co., Ltd. (hereinafter referred to as South Net Energy Company) completed the acceptance inspection of the LED street lamp energy-saving renovation project in Zhaoqing High-tech Zone. A total of 5,722 LED street lights were installed in the project. After third-party energy conservation assessment, the project's power saving rate reached 66, saving electricity of 4.95 million kWh per year, equivalent to saving 1,700 tons of standard coal, reducing carbon dioxide emissions by 4,690 tons, and reducing lighting load by 1,354 kW. The annual electricity cost is 4.06 million yuan. The road surface illumination is improved after the renovation. 26. The project adopts the contract energy management mode. The South Net Energy Company is responsible for all capital investment, construction, management and service. The energy-saving benefit sharing period is 9 years, and the saved electricity costs are based on the owner 15 and the South Network Energy Company 85. The proportion is assigned. The DC centralized power supply and intelligent control system built by the project integrates various technologies such as cloud platform, IoT perception, control and data processing. Through the intelligent control system, various functions such as dimming control can be realized, and the mobile terminal can also be used. The remote monitoring of the lamps and lanterns truly realizes the intelligent and refined management of the lighting system, greatly prolongs the service life of the lamps and systems, improves the stability of the system, realizes the secondary energy saving of more than 20, and greatly reduces the maintenance cost of the street lamp system.
Revised Chain and Escalator Step Chain,Comprising a plurality of
link units interconnected in series with each other, each of the link
units comprising pairs of inner links in parallel with each other,
arranged in pairs and in parallel with each other for connecting two
adjacent link units And a steel wheel rotatably provided on
the steel wheel shaft, characterized in that the link unit further
comprises a traction main wheel, the traction main The
wheel is provided on the steel wheel shaft and the outer diameter of the
traction main wheel is larger than the outer diameter of the steel
wheel. Since the outer diameter of the traction
main wheel is larger than that of the steel wheel, the steel wheel plays
a supporting role when the cascade Chain is driven by the drive steel
wheel, and the main wheel takes the active action, so that the violent
friction between the steel wheel and the transmission wheel can be
avoided , Significantly extending the service life
of the steel wheel and effectively protecting the transmission wheel,
and the noise in the cascade chain movement is significantly reduced.
Chain
Escalator Chain, Lift Chains, Escalator Chain Design,Revised Chain,Escalator Step Chain
Realever Enterprise Limited , http://www.cnelevator-parts.com