Transportation
The 1,000th tram on Hefei Rail successfully rolled off the assembly line
Seetao 2021-05-27 15:09
  • This train is an additional train purchased for Line 2, which will further enhance the transportation capacity of Hefei's rail network
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On May 25, 2021, the 1,000th tram on Hefei Rail rolled off the assembly line at the CRRC Hefei Base. It is reported that this is the preparation for the opening of Line 4 at the end of 2021 by Hefei Railroad Group in order to better meet the needs of citizens due to the increase in passenger traffic on the line network after the opening of the new line, and further enhance the comfort of the ride experience. The citizens' sense of gain, happiness, and security.

The purchase of additional trains on Line 2 has further optimized and improved the overall design, installation technology, and system compatibility compared with the original Line 2 tram. Newly added the automatic light adjustment function, which can automatically adjust the brightness of the lights in the cabin according to the external light intensity; the air conditioning system is equipped with an advanced low-temperature ion air purification device to purify the odor and harmful gas substances in the cabin to a greater extent to create a good riding environment; The pantograph is equipped with a monitoring device. Since subway trains provide operating power through the pantograph and catenary contact transmission power, the monitoring device can effectively monitor the power status in real time and maintain the safe operation of the train to a greater extent; additional trains are also used A more environmentally friendly water-based paint has been added; a new damping patch has been installed to further reduce the noise in the cabin and increase the comfort of the car; more humane facilities such as USB charging ports and wheelchair seat belts have been added to provide convenience for passengers. Among them, the low-temperature plasma air purification device and the pantograph state monitoring device are independently developed and manufactured by CRRC Hefei.

The 6 trains of Hefei rail tram are grouped into one train. After the opening of rail transit lines 1 and 2, the number of trains on the line will be 26 and 28 respectively. In 2019, based on the planning of the line network and the forecast of operating passenger flow pressure, the Municipal Railway Group initiated the purchase of additional trains on Line 1 and Line 2, and purchased a total of 35 trains (210 vehicles). Among them, 15 additional trains were purchased for Line 1 and 20 additional trains were purchased for Line 2. The additional trains accounted for 57% and 71% of the original number of trains, providing sufficient guarantee for the subsequent opening of Line 4 and adjustment of line network operation. In addition, the bidding for the additional purchase project of Line 1 and Line 2 vehicles was completed in April 2020, the design contact was completed in September, and the manufacturing officially started in November. The first train of the additional purchase project officially arrived in December 2020, creating a tram " The high-efficiency model of "bidding in the year, design in the year, manufacturing in the year, and in the current year".

At present, the Hefei rail network is running safely and smoothly, and the number of trains basically meets the needs of train organization. A total of 227 trains and 1152 trains have been put into operation on the southern section of Lines 1, 2, 3, and 5, and the unopened lines of Line 4 and the northern section of Line 5 (including additional trains purchased on Lines 1 and 2). Among them, 122 passenger trains (732 vehicles) were put into use on Lines 1, 2, 3 and the southern section of Line 5, 28 trains (168 vehicles) from Line 4 to the depot, and additional trains from Line 1 and 2 were purchased. 16 columns (96 vehicles). If all 167 trams (1,000 vehicles) are put into operation, the train can carry approximately 340,000 passengers in a single trip (unilateral) (each train can carry a maximum of 2,054 passengers), and the transportation capacity of the line network will be further improved. In addition, the current total passenger flow of Hefei's rail network has exceeded 600 million, of which the passenger flow of Line 1 and 2 is the main one. Recently, the total passenger flow of Line 2 came from behind, surpassing Line 1, and ranked first in passenger traffic of single line. The purchase of additional trains this time also guarantees an increase in passenger flow on major trunk lines.

After the additional trains are put into use, it can effectively increase the maintenance cycle of existing trains. With the increase of the operating hours of Lines 1 and 2, the trains will also enter the stage of overhaul. Hefei Track began to plan for independent train erection and repair in June 2018, and set up a major erection and repair center for the operation branch in May 2019. Recently, the acceptance inspection and no-load operation of the first train of Hefei rail trams were completed at the Zhujiang Road vehicle frame overhaul base of Line 1. According to the construction and repair process requirements and the current base process layout, the first line of electric passenger car frame repair production work from pre-inspection to final delivery, a total of 12 work units, 60 work procedures, 152 work steps, covering electronics, Electrical, mechanical, non-destructive testing and other scientific fields involve complicated procedures and highly specialized operations. In order to ensure the smooth development of the first train's erection and repair work, the Hefei Rail Zhujiang Road Vehicle Frame Overhaul Center overcomes many difficulties in erection and repair, actively seeks breakthroughs, comprehensively guarantees the basic system, strengthens quality control in the production process, and makes the train erection work structured , Standardization, visualization, and ordering.

Engineering: infrastructure construction, infrastructure projects, infrastructure projects

According to the continuous improvement of the rail network and the actual situation of passenger flow growth, Hefei Rail Transit will continue to improve the service quality and transportation capacity of the network operation, and make every effort to provide safe, high-quality, efficient, convenient and environmentally friendly rail travel for the general public. service. Editor/He Yuting

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