英语翻译在目前我国大力倡导节能减排、提倡环保的大环境下,降低生产能耗、保护环境显得尤为重要,而对于各种化工行业这类耗能大

英语翻译
在目前我国大力倡导节能减排、提倡环保的大环境下,降低生产能耗、保护环境显得尤为重要,而对于各种化工行业这类耗能大户企业,如何实现节能减排、改善工艺、高效回收利用低品质热源、提高能源利用率及显得更为关键.
而螺杆膨胀机是一种按容积变化原理工作的双轴回转式螺杆机械,通过阴、阳螺杆转子的转动,将高压气体的内能转化为机械能输出.螺杆膨胀机具有结构简单、可靠性高、动力平衡性好,适合多相混合输运、对工作介质要求不高等优点,适用于不同的低品质能源的发电利用
.本课题将研究并优化设计螺杆膨胀机的壳体,通过对螺杆膨胀机的气缸体,两端盖以及进排气口的合理设计,来达到能减少工作介质热能的流动损失和泄漏损失,提高螺杆膨胀机的效率的目的.

At present our country vigorously promote energy-saving emission reduction, promote environmental protection of the environment, reduce the production energy consumption, Protect environment is particularly important, but for a variety ofchemical industry the major energy consuming enterprises, how to achieve energy-saving emission reduction, improve the process, high recovery efficiency of improving energy utilization ratio and is more critical and utilization of low quality heat source.
While the screw expander is a volume change principle of biaxial rotary screw machine, the Yin Yang, the screw rotor rotation, the energy of high pressure gas into mechanical energy output. Screw expander has the advantages of simple structure,high reliability, great power balance, suitable for the multiphase mixture transportation,low requirement for working medium, suitable for low quality energy differentgeneration using
. This paper will study and optimization design of screw expansion machine shell,through the cylinder body of screw expansion machine, end covers and reasonabledesign of inlet and exhaust ports, to reduce the flow loss of working medium heat andleakage loss, improve the efficiency of screw expansion machine.