水泵

For the aim of saving energy and optimizing control of chilled systems, the performance of VWV systems and characteristics of control systems were analyzed based on the simulation. According to the characteristic of the monitored parameters and controlled variables in VWV systems, three online optimal control strategies were proposed and validated:(1) Optimal strategy for on/off control of chillers according to the ratio of secondary flow rate to primary flow rate.(2) Optimal strategy for the control of secondary pump according to value positions of auto-controlled AHU vales. And (3) Optimal strategy for supply chilled water temperature control of chillers according to valve positions of auto-controlled AHU valves and working status of secondary pump.

为达到节能和优化系统控制的目的，在楼宇空调水系统及其局部控制仿真分析的基础上，针对变流量系统监测点和可调参数较多的特点，提出并验证了3个实时优化控制方案：根据初级和二级冷谋水流量的比率，实时优化多台冷水机组的启／停控制；利用AHU自动控制水阀的阀位信息，实时优化二级水泵的控制；利用AHU自动控制水阀的阀位信息以及二级泵的工作状况，实时优化冷水机组出水温度的控制。

It only consumes the electricity of the air blower and circulating water pump,having advantages of simple structure and saving energy.

湿膜加湿器是利用直接蒸发加湿的工作原理，对空气进行加湿，只消耗风机和循环水泵的电耗，具有结构简单和节省能源的优点。

Recently,"the water table has dropped down so much that my pump was sucking air."

近来，"水位下降的很快以致于我的水泵根本抽不到水了"。

I want a small hydraulic pump to drive air into the tank.

我要买一个小水泵把给水箱加气。

Central air-conditioning system is a systematic project, by the fans, pumps, air-conditioning units, fan coil units and other components.

中央空调系统是一个系统工程，由风机、水泵、空调机组、风机盘管等部件构成。

It minimizes the consumption of compressed air to almost nothing for an air-driven pump in a sealed system.

它最大限度地减少了压缩空气消耗几乎没有空气驱动的水泵密封系统。

A new way to avoid ambiguous point in mesh generation process has been proposed and realized by tiny movement of intersection.

在以上研究工作基础上，建立了基于工作站的热裂预测的数值模拟系统，已在沈阳水泵厂安装并投入运行。

In this method,the Archimedes spiral was adopted as channel midline which could be generated by programmer in the process of modeling,and the original wooden patterns and the area change rule of channel could be modified,so that 3-D design of double-channel impellers could be implemented.

在该设计方法中，采用阿基米德螺旋线为流道中线，在造型过程中编入程序生成流道中线，并对原木模图和流道面积变化规律进行修正，实现对双流道式污水泵叶轮的三维设计。

Through high-pressure water pump and special nozzle to spray water at high speed from up to down to atomize water to form fan-shaped "silver screen", the movie is displayed on the atomized screen.

水幕电影是通过高压水泵和特制的喷头将水自下而上高速喷出，使水雾化，形成扇形的"银幕"，影片就是在雾化后的银幕上呈像的。

When diving sewage pump motor power 7.5kW or greater than or equal to greater than or equal to the outlet pipe diameter DN100, the pump can be fixed Autotransformer device; when diving sewage pump motor power 7.5kW or less than the outlet diameter is less than when DN100 can be established mobile hose installation.

当潜水排污泵电机功率大于等于7.5kW或出水口管径大于等于DN100时，可采用水泵固定自耦装置；当潜水排污电泵电机功率小于7.5kW或出水口管径小于DN100时，可设软管移动式安装。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。