查询词典 valve control

By means of analyzing the recent technical level of domestic turbine governor researching manufacturers, this paper summarizes from following aspects: the governor's system structure modes, the microcomputer adjustors composed of industry control computers, dual-redundant computer issue, friendly man-machine interfaces with plenty contents, the governor's computer analog test functions, hydraulic components adopted the industry standard such as a proportional servo valve or an electrohydraulic converter composed of a servo motor, the setup of mechanical feedback and mechanical opening limited mechanism, the governor's generally raised oil pressure grade.

通过分析国内水轮机调速器研制生产厂家的最新调速器技术水平，从调速器的系统结构模式、以工业控制计算机构成的微机调节器、计算机双机冗余问题、友善且内容丰实的人机界面、调速器的计算机仿真测试功能、采用工业标准液压件如比例伺服阀或伺服电机构成的电液转换部件、机械反馈和机械开度限制机构的设置、普遍提高的调速器油压等级等方面进行了总结。

The defects of the commonly used trigger devices with pneumatic valves in control precision of birdshots are analyzed. As a result, a new type trigger device, i. e. the trigger device with impact slide valve gear, is developed so as to avoid these defects.

理论分析了目前常见的气动阀开炮机构在鸟弹控制精度方面的缺陷，并针对其缺陷设计了一种新的开炮机构：冲击式滑阀开炮机构。

The control principle of electronic expansion valve and its energy saving advantage were described especially.

最后重点阐述电子膨胀阀的控制原理及节能方面的优势。

It can be used to measure the temperatures of the multi points in the refrigeration drier and control the drainage time and the angels of the electronic expansion valve automatically.

它可以测量冷干机的多点温度，自动控制排水时间和电子膨胀阀的开度，具有测量准确，控制可靠的特点。

In order to develop new types of explosion relieve valves,a new experimental plant for explosion relief valve of diesel engine was developed,which was controlled by data acquisition system.Its functions,operation principles and facilities are introduced,with the focus on operation control system and data acquisition and analysis system.

阐述为研制新型柴油机防爆阀，开展防爆阀防爆功能试验研究，开发的一套由计算机数据采集系统控制的防爆阀爆炸试验装置，论述试验装置的功能、原理和设备，重点介绍装置运行控制系统和数据采集分析系统。

Growing need for clean, cheap fuel to generate electricity PUMP CONTROL VALVE EN700X to feed growing economic activities of developing countries is stoking demand for LNG.

不断增加的需要清洁，廉价的燃料发电养活越来越多的发展中国家的经济活动增强了人们对液化天然气的需求。

Boiler feed pump minimum flow valve cycle Control requirements: the boiler feed pump safe start-up and running, eliminate traffic is too small, temperature increase, the water a strong cavitation damage to the pump.

锅炉给水泵最小流量循环阀控制要求：使锅炉给水泵安全启动及运行，消除因流量过小、温升增加、水强烈气蚀使泵损坏。

It doesn't matter not to mount the foot valve during the reloading of the pump, however, the control valvethe filter should be mounted on the suction pipeline to prevent the impurities from being sucked into the pump.

泵的吸入和排出管道应有自己的支架，一般不允许泵体承受管路的重量，在泵处于倒罐工作时可以不装底阀，但应在吸入管路上装控制阀和过滤装置，以防杂物吸入泵内。

This technique is to make a device to instead those transmitters and reduce the need in pressure gauges. Using the electronic valve and flexible tube to construct the control panel is effective to connect the single pressure gauge with every sensor point in ventilation duct.

利用软管将欲量测之管段的压力导引到控制箱内，并将所有导引来的静压分别安装在一组并联的各电磁阀上，再将所有的动压分别安装在另一组并联的各电磁阀上，而该两组并联电磁阀的底部各安装一根连通管连结至单一差压计的高低压两端，并利用控制组件切换各电磁阀的启闭以达到多点压力监测切换的目的。

This technique is to make a device to instead those transmitters and reduce the need in pressure gauges. Using the electronic valve and flexible tube to construct the control panel is effective to connect the single pressure gauge with every sensor point in ventilation duct.

利用软管将欲量测之管段的压力导引到控制箱内，并将所有导引来的静压分别安装在一组并联的各电磁阀上，再将所有的动压分别安装在另一组并联的各电磁阀上，而该两组并联电磁阀的底部各安装一根连通管连结至单一差压计的高低压两端，并利用控制元件切换各电磁阀的启闭以达到多点压力监测切换的目的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。