diffusion pump

The solution pump in the absorption system also consumes valuable electricity, while the diffusion absorption refrigerator ( DAR) can only be driven by the low grade thermal energy instead of electricity to produce cooling.

但是吸收式制冷机系统中的溶液泵仍然需要消耗宝贵的电能。而扩散吸收式制冷机可以单纯使用低品位热，完全不消耗电能来获取冷量。

Introduces the newly developed K-800A HV oil diffusion pump for its design of broadened range of pumping speed, increased critical backing pressure and reduced backstreaming rate.

介绍了新研制的高真空油扩散泵在拓宽抽气速率范围、提高临界前级压力、降低返油率方面的创新设计。

The oil vapor contamination in the old vacuum furnace was inherited from its oil diffusion pump, and the inaccuracy temperature control of the furnace chamber was resulted from the manual temperature adjust-ment. These problems have severely restricted the development of vacuum technology in our laboratories.

老式真空炉由于采用了油扩散泵和手动控温方式，存在真空系统被油污染和控温精度差的问题，严重影响了真空工艺质量。

Based on momentum conservation principle and conversation of energy, the calculating formulas for outlet pressure of throat, delivery pressure of gas lift jet pump and correlative size of diffusion channel are achieved.

根据喉管内流体动量守恒和扩散器内能量平衡原理导出喉道出口压力和加速泵排出压力的计算公式，并计算直接影响加速泵排出口压力的扩散器尺寸。

Uses: diffusion pump oil for heating, temperature heat presses.

用途: 用于油扩散泵加热 、 高温塑机加热.

Development of an automatic testing system for diffusion pump performance

扩散真空泵性能自动测试系统的研制

The backstream sources and radial distribution are investigated with a H-5 type diffusion pump.

利用H&5型扩散泵研究了返流的来源及经向分布。

Uses: diffusion pump oil for heating, high temperature heat presses.

功用: 用于油扩散泵炮炼 、 高温塑机炮炼.

There are some reference effect in design of other types of diffusion pump.

对设计其他类型的扩散泵具有一定的参考作用。

Relationship between pumping speed of oil diffusion pump and gases pumped

油扩散泵抽气速率与被抽气体的关系

Design of Diffusion Pump System for Resistance Vacuum Furnace

高温电阻炉扩散泵真空系统的设计