On June 24, 2015, we learned from Weichai Power Co., Ltd. that a series of medium and heavy-duty engines that meet the “Terjing V†emission regulations were put on the market in recent days. These products cover the needs of working conditions in the Beijing-Tianjin-Hebei region. "China Blue" has made a contribution and added a force to create a beautiful city.
As a result, Weichai Power became the first Chinese company to launch a "special Beijing V" engine business, is the only access to "special Beijing â…¤" product certification of the engine.
The launch of the “Terjing V†emission regulation reflects Beijing’s determination to control atmospheric pollution. After the Beijing V implementation, the Beijing Municipal Government has intensively introduced four local standards for the control of emissions from heavy-duty vehicles and non-road machinery. The emission standards continue to be upgraded, and is known as the “Terjin Vâ€, the most stringent emission standard that is synchronized with the international community.
Weichai Power, which has always been concentrating on energy conservation and emission reduction, consciously took on the social responsibility to control air pollution and took the lead in the development of a full range of “Putin V†and “Tekine V†(with DPF) products that can fully satisfy Beijing-Tianjin-Hebei And the application of commercial vehicles in other regions of the country.
The Beijing V engine is based on the original V engine configuration. PM emissions are achieved through on-board purification. Extrusion-type low-temperature catalysts are used to improve the efficiency of SCR cryogenic reduction. Optimized mixers and advanced urea injection strategies are improved. The utilization rate of urea overcomes the industrial difficulties of SCR in the city.
With the addition of a special Beijing V engine with DPF post-treatment, PM emissions and particulate counts have fallen significantly, below the Euro VI limits. Unique thermal management technologies have made it possible for passive DPF regeneration applications, supplemented by active service regeneration. This greatly reduces the regenerative fuel consumption and makes the system safer and more stable.
As the chairman unit of the China Internal Combustion Engine Industry Association, Weichai has been committed to promoting industrial emission upgrades. Weichai people believe that the new requirements put forward by the state for the national IV standard switching and energy saving and emission reduction forced enterprises to choose technology routes, research and development of new energy-saving and emission reduction technologies, remanufacturing and other circular economy development, promotion of new energy technologies, and new Great efforts have been made in materials and new process applications to further improve the energy-saving and emission-reduction levels of internal combustion engine products and improve the international competitiveness of the internal combustion engine industry.
2015 Shanghai Auto Show Weichai Booth
It is based on this understanding that Weichai will create "green power" as its unrelenting pursuit. In 2014, the Weichai engine segment's R&D investment reached 1.407 billion yuan, completed a full range of automotive IV and V diesel emission certification development, and WP3 two-valve IV vehicle diesel engines went on the market in small quantities. The autonomous ECU electronic control system successfully supported natural gas. The engine, WP13 high-powered heavy-duty commercial vehicle engine was released and put on the market, especially this WP13 engine with the national IV emission standard, and the SCR exhaust treatment technology with lower requirement for the explosion pressure was selected on the emission technology route, which will make China heavy The engine brought a new era of 13-liter aircraft.
In 2015, Weichai also launched the Weichai Smart Power Platform for resource sharing and win-win development, integrating Weichai's WOS operation system, global R&D community, optimized global supply chain system, and full life cycle membership. The four systems, including exclusive services, provide customers with an efficient operating system, strong technical support, the world's most competitive supply chain cluster, and perfect after-market service guarantees, making the platform continue to break new ground and become a new product of Weichai Engine. Incubators for new technologies.
It is reported that Weichai Power has also set an industry benchmark in the development of Euro VI machines. In April 2014, WP7 Euro VI passed the British VCA certification and became the first heavy-duty diesel engine in China to meet Euro VI emission certification.
Energy-saving and emission-reduction, but also a "China Blue" to the sky of the city, Weichai has been on the road.
The hollow paddle dryer is a horizontal structure drying equipment with heat conduction.
The drying of the equipment relies on indirect heating by heat conduction. so the drying process requires no or only a small of gass to remove moisture. It greatly reduce the heat loss taken away by the airflow, inproves the heat utilization rate, and is an energy-saving drying equipment. The paddle dryer is widely used in the drying of powder, granular, filter cake and slurry materials in petrochemical, chemical, metallurgy, food, medicine, pesticine and other industries.Indirect heating or cooling of paste, granular, powder and slurry materials can complete unit operations such as drying, cooling, heating, sterilization, and reaction. The special wedge-shaped stirring heat transfer blade in the equipment has high heat transfer efficiency and self-cleaning function of the heat transfer surface.
Principle:
The heat transfer surface of the hollow paddel dryer has several parts such as blades, stirring shafts, and a large heat transfer area per unit volme. In addition, stirring and mixing make the materials violently turn, so as to obtain a high heat transfer coefficient, so the floor space and space are very small, saving the cost of plant infrastructure. In the drying process, the gas consumption is small. the flow rate is low. and the amount of dust carried away by the gas is small, so the gas dust recovery after drying is comvenient, and the recovery equipment in small in size, which can save equipment investment. For drying processes that require solvent recovery, the solvent concentration can be greatly increased. Due to the special stracture of the paddle, the material is alternately squeezed and relaxed during the drying process, which strengthens the drying process. The filling rate of the material in the drying room is very high, which can reach 80%-90%. The residence time of the material can be adjusted by adjusting the parameters such as the feeding speed, the rotating speed of the stirring shaft, and the filling degree of the material, and can be adjusted arbitrarily from a few minutes to a few hours. In addition, the movement of the material from the feeding port to the discharging port in the dryer is basically a piston motion, and the residence time distribution is narrow, so the moisture content of the product is uniform. The paddle has a certain axial angle on the stirring shaft, so it can continuously dry the material.
Features:
The equipment has a compact structure, a small footprint, and a large effective heat transfer area: a large heat transfer surface per unit of eccective volume.
The balde shafts can be meshed with each other, which has a self-cleaning effect and can prevent materials from sticking to the wall.
Low energy consumption per unit evaporation, low operating cost, indirect heating, closed heating, heating the material partition, high energy efficiency and utilizaion.
The low speed of the blade shaft does not damage the shape and properties of the product.
The operation of the equipment is flexible, the operation is stable and reliable, it can be operated continously or intermittently, and it can be applied in many fields.
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Jiangyin Jirui Machinery Manufacturing Co,LTD , https://www.jyjiruimachine.com