The National Development and Reform Commission approved the eighth batch of “National Resources Conservation and Environmental Protection Projects” financial support projects for 2008. The “Yuchai Remanufacturing Project” has received support from the central budget with an investment of 10 million yuan. This is the first batch of national auto parts remanufacturing pilot enterprise qualifications in March this year, Yuchai once again received strong support from the government in the engine remanufacturing project.

Practicing the core concept of “Green Development, Harmony and Win-Win”, developing the engine remanufacturing industry, and strengthening the Yuchai Remanufacturing Project is a high level of consensus among the company's decision makers. At present, the company is in full swing in the remanufacturing business sector. Cooperative research and development. As the third engine plant and remanufacturing project department that undertakes the engine remanufacturing work, according to the company's deployment, it actively participated in this work in 2008: Externally, paid close attention to national policies and successfully won national support; internally, formulated and implemented the “engine "Re-manufacturing pilot project implementation plan" and the implementation of remanufacturing process technology application, verification, solid foundation, and strive to improve the reuse rate of parts and components. With the implementation of the "National Resources Conservation and Environmental Protection Project" financial support, the promotion of the Yuchai remanufacturing project will usher in faster development.

The National Development and Reform Commission of this batch approved a total of 90 projects, and Guangxi was granted two approvals. The other is Hechi City Southern Nonferrous Metals Smelting Co., Ltd. The project for comprehensive utilization of volatile kiln residues has been approved for 3.5 million yuan.
View related topics: Yuchai won the "China Brand Annual Award NO.1" (internal combustion engine) title in 2007


Shut-off Valve

Globe valve, also known as cut-off valve, is a mandatory sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the failure of the top of the valve stem will occur. According to the connection method, it is divided into three types: flange connection, thread connection and welding connection. After the appearance of the self-sealing valve, the medium flow direction of the globe valve is changed from the top of the valve disc into the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, but the force to open the valve is large, and the diameter of the valve stem can be adjusted accordingly. decrease. At the same time, under the action of the medium, this form of valve is also tighter. my country's valve "Three Chemicals" once stipulated that the flow direction of the globe valve should be from top to bottom. When the globe valve is opened, the opening height of the valve disc is 25% to 30% of the nominal diameter. The flow rate has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the globe valve should be determined by the stroke of the valve disc.

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November 11, 2024