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It may be that many drivers are already familiar with SCR technology. What is the DPF route? Xiaobian first gives you a brief introduction.
DPF, also known as diesel particulate trap, is a device installed in the exhaust system of a diesel vehicle to reduce particulate matter (PM) in the exhaust through filtration. The Diesel Particulate Filter (DPF) captures particles, such as diffusion precipitation, inertial precipitation, or linear interception, through a combination of surface and internal mixing filters. DPF can effectively purify 70%-90% of the particles in the exhaust. It is one of the most effective and direct methods for purifying diesel engine particulates.
The DPF device selected by FAW Jiefang Xichai
Now that we have chosen the DPF post-processing route, what is Xichai's development on this route? According to Xiaobian, since Xichai entered the basic research of the DPF device in 2009, it has successfully developed the first through eight years of research and development. A domestic diesel engine with a particle trap (DPF) installed and commercialized. This engine has now obtained 42 national invention patents, which can effectively purify 90% of the diesel engine's particulate emissions, representing the highest level of environmental protection of domestic diesel engines. If all existing national heavy diesel vehicles are retrofitted, the national motor vehicle PM (particles) emissions will be reduced by 3/4.
Xichai R&D DPF device
In addition to satisfying the rigid demand for emission reduction, what are the advantages of Xichai DPF products?
Xiaobian was informed that the initial installation cost of Xichai DPF products was relatively low, and there was no initial installation cost for urea or urea tanks. At the same time, the use cost of Xichai DPF is also relatively low, and no other additives are consumed during driving. The longer it is used, the higher the revenue.
In terms of maintenance costs, Xichai DPF products also have considerable advantages. The regeneration technology of Xichai DPF products has effectively improved the post-processing jamming of DPF. Even in the case of poor fuel quality, the user only needs to clean the DPF once or twice for life, with little additional cost. In addition, the addition of Xicep DPF can also improve work efficiency, a wider geographical range of work, thereby increasing the profit range.
In addition, the technical route of Xichai DPF can realize self-adaptation of various working conditions, achieve stable emission standards, eliminate the risk of excessive emissions, and effectively avoid possible problems in emission monitoring. In addition, Xichai optimized the structure of the oil cooler module, cylinder cover, intake and exhaust side, and EGR cooler on the entire machine, and wrapped the exhaust system. Various optimization measures further ensure the product's Stability and reliability.
With many advantages, will the DPF line be the future development trend? Ji Yizhi, deputy director of FAW Jiefang Xiechai, believes that at present, the country’s determination to control air pollution is firm. As one of the sources of pollution, diesel engine cars must be stricter in emission control requirements. , And the development of efficient and direct DPF filter effect will be the general trend.
Ji Yizhi stated that the DPF route is the technology that was used in the six stages of Europe.
Ji Yizhi stated that the DPF route is the technology that was used only in the six-year period in Europe. However, just as the country has just adapted to the fourth national economy, it is required to add a DPF that satisfies the national laws and regulations on the basis of the State V technology, which means that the post-processing technology must be upgraded from the national four. Switching directly to the State VI requires that manufacturing companies must have strong technical reserves. This is also a test for Xichai.
At present, Xichai has formed an annual production capacity of 200,000 units of new DPF engines. The successful off-line production of Xichai DPF engine not only satisfies the national five emission standards, but also clears the technical barriers for the development of the subsequent six national aircraft types. On the other hand, the successful development of Xichai's DPF products has allowed Xican to seize the opportunities in this technological route and has laid a solid foundation for the development of Xichai.
Non-metal laser cutting machines are laser cutting machines other than cutting metals, such as leather, cloth, crafts, acrylic, knife templates, marble, electronics, etc.
Precautions
1, the cutting seam is fine: the laser cutting slit is generally 0.10mm-0.20mm; for example: the domestic industry leading laser cutting machine slit is probably controlled within 0.15mm
2. The cutting surface is smooth: the laser-cut cutting surface has no burr method;
3, small thermal deformation: laser processing laser slits are thin, fast, energy concentrated, so the heat transferred to the material being cut is small, causing the deformation of the material is also very small;
4. Suitable for the processing of large-sized products: The mold manufacturing cost of large-sized products is very high, laser processing does not require any mold manufacturing, and laser processing completely avoids the collapse formed when the material is punched and sheared, which can greatly reduce the production cost of the enterprise. Improve the grade of the product;
5, very suitable for the development of new products, shorten the development cycle: once the product drawings are formed, laser processing can be done immediately, you can get the new product in the shortest time;
6. Material saving: The laser processing adopts computer programming, which can set the materials of different shapes to maximize the utilization of materials.
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