Rolling Stock Air Conditioner System Solution
Date：2017.12.23 Source：北京鼎汉技术股份有限公司1、高速动车组空调 High Speed EMU A/C
High Speed EMU A/C features low noise and high temperature regulation precision, and has pressure wave protection function to prevent violent pressure fluctuation generated while EMU runs in tunnels or passes by other trains from impairing comfort of passengers. We have successfully developed A/C systems for CRH380B, CRH5, and CRH2 series and EMUs per China’s standards.
2、城际动车组空调 Intercity EMU A/C
Intercity EMUA/C features low noise and rapid cooling, and has pressure wave protection function to prevent violent pressure fluctuation generated while EMU runs in tunnels or passes by other trains from impairing comfort of passengers. We have successfully developed A/C systems for CRH6A, CRH6F, CRH3A, CRH3F, KDZ10 and KDZ16intercity EMU.
3、城市轨道车辆空调 A/C for Urban Rail
Urban rail vehicles include subway, mono rail, light rail, tram and regional rail. We can provide environment-friendly A/C for urban rail vehicles with reliable performance based on characters of operation environment in different cities and meet special demand of different clients for energy efficient, high temperature resistant, weatherproof, thin, low noise and integrated products. Up to now, we have provided A/C for urban rail vehicles in Hong Kong, Beijing, Guangzhou, Shenzhen, Chongqing, Chengdu, Tianjin, Dalian, Nanchang, Changchun, Lanzhou, Xiamen, Shenyang, Fuzhou, Wuhan and Foshan in China and A/C for metro vehicles in Mecca, Tehran, Buenos, Aires, Lahore.
--节能型空调 Energy Efficient A/C
Variable frequency control, paralleled compressor and heat pump techniques are used to realize energy efficiency.
Variable frequency technique：Energy efficiency is achieved by regulating frequency of compressor. The compressor adapts to load variation automatically and runs at variable frequency. When operating frequency drops, energy efficiency ratio is improved to reduce temperature fluctuation in the cab while saving energy so that energy loss during frequent start/stop of compressor during A/C load variation can be saved.
Paralleled compressor technique：Two compressors are connected with external pipelines to form paralleled compressors that share the same heat exchangers. When A/C load demand drops, 1 compressor can be stopped to greatly improve energy efficiency ratio and save energy. Also, multi-grade capacity regulation is realized to reduce frequency of start/stop of compressor and temperature fluctuation in cab.
High Temperature Resistant, Weatherproof, Thin, Mute and Integrated A/C
耐高温空调 High Temperature Resistant A/C：
Refrigerant and compressor suitable for operation at high temperature are selected. A/C units apply to high temperature regions by designing all components in the cooling system properly.
防风沙空调 Weatherproof A/C：
Our patented automatic dust-removing technology is adopted to remove dust entering condensation chamber of the A/C unit through dust holes appropriately located on both sides of the condensation chamber with the aid of the appropriately sloped bottom plate of the condensation chamber, the condensation fan and vibration of the vehicles, which will be blown away by wind whistling by both sides of the train during its operation.
低噪声空调 Low Noise A/C：
Low noise of A/C unit is realized by optimizing and matching design, applying low rpm and low noise fans and taking damping measures. The double-layered laminated bottom plate structure and silencing and damping technology plus silencing air duct at air outlet effectively reduce the impact of noise generated by A/C unit on compartments in vehicles.
4、干线铁路客车空调 PDL A/C
We are capable of providing A/C for full range of PDL rolling stocks as a dedicated supplier of A/C units for passenger trains shuttling in Qinghai-Tibet railway lines.
5、机车空调 Locomotive A/C
We have developed A/C for Shaoshan, Dongfeng and Hexie series locomotives which have been exported to Vietnam, Turkmenistan and Sudan, to name only a few.