2017年2月23日星期四

Detection of bellows in axial flow pump

In order to ensure axial flow pump traveling wave tube amplifier has the characteristics of small volume, light weight, high efficiency and high reliability, the importance of the high voltage power supply supporting the traveling wave tube is self-evident. In order to realize the high index of the traveling wave tube amplifier Requirements, the high voltage power output of the pole voltage must have good stability and low ripple. The pulsed high voltage power supply must be highly efficient to help reduce the thermal design pressure of the pulsed high voltage power supply, providing the possibility of a reduction in volume and weight, which can greatly improve the reliability of the pulsed high voltage power supply.
A bellows is a cylindrical thin-walled crimp housing having a plurality of transverse corrugations. Control valve on the role of the bellows only one - isolated, mainly divided into three kinds: one is to prevent the valve medium spread to the outside world, that is, for the flow of chemicals within the valve for the chemical nature of lively or toxic and harmful gases Volatile liquid and precious media The traditional radar antenna will emit a microwave scan of a space area, any target object will reflect these signals back, but the region of low-reflectivity objects will issue a high background noise, so the traditional radar The system is difficult to locate.
By the Ministry of Science and Technology organized by the field of technical acceptance of experts believe that this marks the SOFC system independent power generation technology has made new breakthroughs, with basic access to engineering and product of the stage of the conditions, the use of double-stack module and thermal-electric collaborative control technology , Power generation efficiency of 46.5%, cogeneration power utilization rate of up to 79.7%; which uses a large area of ​​single cell power density of up to 1.2W per square centimeter, the decay rate of only 0.41% per thousand hours, reached the international advanced level, Organic optoelectronic materials singlet and triplet excited state, because of its high degree of lively, its life at room temperature are usually in the order of nanosecond and milliseconds, light time can only be measured by precision instruments can not be measured, the human eye can not distinguish. "We have designed and prepared several series of single-component organic long-life phosphorescent materials at room temperature, and the excited state has a long life span of seconds. Not only that, we have also created a new method of data encryption. With the action of the valve, the stem will bring these substances into the valve or accumulate in the stem packing, easy to cause the valve medium pollution and valve lock; the last one is to protect the internal parts of the valve to prevent the media caused by the stem Scour and corrosion.
In order to ensure that the wave tube amplifier with small size, light weight, high efficiency and high reliability, and traveling wave tube supporting the importance of high-voltage power is self-evident. In order to achieve the wave tube amplifier high index requirements, high voltage power output of the pole voltage must have good stability and low ripple. The traditional radar antenna will issue a microwave scan of a space area, any target object will reflect these signals back, but the region of low reflectivity objects will send a high background noise, so the traditional radar system is difficult to locate.

没有评论:

发表评论