On the morning of June 25th, the Chinese high-speed rail family added a new member, the “Fuxingâ€!
Red debut for the first time
"'Fuxinghao' is China's standard EMU with complete independent intellectual property rights in China. Its successful development and production symbolizes that railway complete sets of technical equipment, especially high-speed EMUs, have taken the lead in the world." Lu Dongfu, General Manager of China Railway Corporation He said that in the important historic point of successfully establishing a well-to-do society and realizing the great rejuvenation of the Chinese dream of the Chinese nation, the Chinese standard EMU was named “Fuxing No.â€, which stands for the firmness of the Chinese railways to follow the party in a new era and to be courageous and pioneering. determination.
At present, the “Fuxing No. 1†China EMU has two types of “CR400AF†and “CR400BFâ€. In accordance with the new EMU preparation rules of the China National Railway Corporation, the new autonomous EMUs use models beginning with “CR,†which is the English abbreviation of China National Railway Corporation, and also refers to the serialization of Chinese standard EMUs covering different speed classes. Product platform. The “400†in the model is the speed grade code, which means that the test speed of the EMU can reach 400km/h and above, and the continuous operating speed is 350km/h. "A" and "B" are enterprise identification codes that represent the manufacturer; "F" is a technology type code that represents a decentralized electric vehicle group. The red is the AF of the four-party vehicle, and the yellow front is the BF of the CRRC. In the future, China National Railway Corporation will gradually develop CR300 and CR200 series Chinese standard EMUs according to the needs of the transportation market.
As the latest generation of standard EMUs in China, what are the outstanding aspects of "Fuxing"? Spicy Finance this is for you to "secret."
From "foreign genes" to "pure China," Chinese standards account for 84%
Many onlookers are concerned that with the "Harmony", why should there be a "rejuvenation"? This will have to review the story of the birth of China's high-speed rail.
As we all know, China’s high-speed rail was born on the road of “introducing absorption, digestion, and innovationâ€. At the beginning, four different technology platforms, namely type 1, type 2, type 3, and type 5, were introduced from Europe and Japan. Different models of technology, so that we use the shortest time "consolidation", set the length of each family.
Later, we built our own high-speed rail based on these technical platforms, but there are still problems that have not been solved - these vehicles cannot be "interconnected." Wang Yueming, chief researcher of the China Academy of Railway Sciences, said that the standard systems for these technology platforms are not uniform and they have not been standardized. Not only are the driver's consoles different, but even the seats in the cars are not the same, and they cannot replace each other. Once a car breaks down, it is necessary to organize passengers to transfer. Temporarily transferred cars are likely to be either “unable to hang up†or “missing seatsâ€.
Remember that in May of this year, "The Go national player was even forced to take a high-speed train and forced to drop his seat?" At that time, Lian Xiao rushed from Beijing to Hangzhou by high-speed train. Because the train equipment failed to call the standby train, the backup train was inconsistent with the original train model and the seat did not correspond. As a result, he was changed from a first-class seat to a second-class seat. Hey, every time this kind of thing is encountered, the train conductor's heart is also a thousand alpacaes running. "My baby has a hard heart. Not that I don't arrange for everyone to sit and sit, but this spare train is not the same type. With so many seats!"
Not only does the train have such an embarrassment, because the model standards are not uniform, each type of car needs a spare car parked at the station emergency, the repair workshop of the car must also be equipped with all four kinds of car parts, and even the high-speed rail driver must also A variety of models are learning again.
In order to create a high-speed EMU design and manufacturing platform that suits China's national conditions and road conditions, and to achieve autonomy, standardization and serialization of China’s high-speed railway EMUs, under the leadership of the China National Railway Corporation, the China Academy of Railway Science and Technology takes the lead and collects CRRC Group. With the strength of related companies, the development of the Chinese standard EMU design and development was carried out.
The "China" of China's standard EMU means that the high-speed rail is the first "foreign genes," "mixed blood," and "mainly based on me." Now it is "pure China" from the inside out, and especially the software is all Self development. Of the 254 important standards for high-speed EMUs, the Chinese standard accounted for 84%. The overall design of China's standard EMUs and key technologies such as bodywork, bogies, traction, braking, and networks are all independently developed by our country and have fully independent intellectual property rights.
The "standard" of China's standard EMU means that all high-speed trains can be linked and operated in the future. As long as it is a car of the same speed class, no matter which factory produces, no matter which platform is produced, it can be linked to the operation. Different speed grade cars can also help each other.
Longer life and more comfortable ride is the main force for the "going out" of high-speed trains in the future
Compared with the "Harmony", "Fuxing" has a different place? Spicy sister first introduces you to five major advantages.
First, the "lifetime" is longer! China's standard EMUs have intensified their efforts to reduce life cycle costs and further increase safety margins. In order to adapt to China's vast geographic area and its temperature across 40°C, long-distance, and high-intensity operational requirements, the “Fuxing†has applied 600,000 km of appraisal, which is 200,000 kilometers more than the European standard. In the end, the entire vehicle performance index is greatly improved. The design life of the “Fuxing†has reached 30 years, and the “Harmony†is 20 years.
Second, "body" is better! With the new low-resistance streamlined head shape and flat body design, the models look more elegant and run more energy-efficient. Anyone who has taken the "Harmony" will find that there is a "bullet" on the roof of the EMU, which is actually a pantograph and an air conditioning system. We "Fuxing" lowered this "bullet" into the wind tunnel system under the roof, making the train not only look more beautiful, the train resistance is 7.5%-12.3% lower than that of the existing CRH380 series, and the train is at a speed of 350 kilometers per hour. Operation, energy consumption per 100 kilometers per person decreased by about 17%.
Third, the "capacity" is greater! Looking from the outside, the "Fuxing" figure is better. After boarding the bus, passengers will be surprised at the larger space because the train height has increased from 3,700 mm to 4,050 mm. In spite of the increase in cross-section and increase in space, the test run at speeds of up to 350 km/h, train running resistance, energy consumption per 100 km per person, and noise inside the car have decreased significantly, and attentive passengers will also find that the seat spacing is more spacious.
Fourth, higher comfort! The "Fuxing" air-conditioning system fully considers reducing the influence of the pressure wave outside the vehicle, reducing ear discomfort when tunneling or meeting; the train is provided with various lighting control modes, which can provide different light environments according to passengers' needs. Of course, it is more worthwhile to have a full WiFi network coverage. Of course, the effect of this connection is still waiting for passengers to get on the train.
Fifth, "vigilance" is higher! "Fuxing" set up an intelligent perception system and established a powerful safety monitoring system. More than 2,500 monitoring points were deployed in the entire vehicle, which is about 500 more than the previous models with the most monitoring points. The state of the running parts, bearing temperature, Cooling system temperature, braking system status, passenger room environment for all-round real-time monitoring. It can collect more than 1,500 items of various vehicle status information, providing support for all-dimensional, multi-dimensional fault diagnosis and maintenance.
In addition, when an abnormality occurs in the train, it can be automatically alarmed or alerted, and it can automatically adopt speed limit or parking measures according to the safety policy. At the junction of the car head and the car compartment, a collision energy absorbing device is also added, and an accidental collision occurs during the low speed operation. The device can be deformed to improve the passive protection capability of the EMU.
"The Chinese standard EMU with completely independent intellectual property rights will be used in Indonesia's high-speed rail project, and 'Fuxing No.' will also be the main force for China's high-speed rails to 'go global'," said He Huawu, chief engineer of China Railway Corporation and member of the Chinese Academy of Engineering. (People's Daily Central Kitchen, Spicy Finance Studio Lu Ya Nan)
Exhaust Fuel Pressure Sensor,Pressure Transducer,Water Pressure Sensor,Waterproof Pressure Sensor
Shenzhen Ever-smart Sensor Technology Co., LTD , https://www.fluhandy.com