查询词典 mica condenser

A quasi three dimensional numerical method is developed for predicting the steam flow and heat transfer behavior of condenser. It is applied to a one pass large power plant condenser.

为了研究凝汽器流动与传热特性沿轴向的变化，文中发展出一个凝汽器汽相流动与传热特性的准三维数值计算方法，应用该方法对一大型凝汽器汽相流动与传热特性进行了数值模拟。

states the characteristics of the condensing-temperature control in variable condenser water flow of central air-conditioning systems. analyses the effects of variable condenser water flow on cop of centrifugal chillers. indicates that although the negative effect is not negligible, it is less than the positive effect on pump's energy-saving and the condensing-temperature control is helpful to the resulting energy-saving for air-conditioning systems by combining with an example.

摘 要：论述了在集中空调冷却水变流量系统中冷凝温度控制法的特点；分析了冷却水变流量对离心式制冷机性能系数的影响；结合实例说明虽然冷却水变流量对于冷水机组制冷性能的负面影响不可忽略，但这一负面影响较对于水泵节能的正面影响要小，采用冷凝温度控制法对于空调系统综合节能是有益的。

States the characteristics of the condensing-temperature control in variable condenser water flow of central air-conditioning systems. Analyses the effects of variable condenser water flow on COP of centrifugal chillers. Indicates that although the negative effect is not negligibleit is less than the positive effect on pump's energy-saving and the condensing-temperature control is helpful to the resulting energy-saving for air-conditioning systems by combining with an example.

摘 要 论述了在集中空调冷却水变流量系统中冷凝温度控制法的特点；分析了冷却水变流量对离心式制冷机性能系数的影响；结合实例说明虽然冷却水变流量对于冷水机组制冷性能的负面影响不可忽略，但这一负面影响较对于水泵节能的正面影响要小，采用冷凝温度控制法对于空调系统综合节能是有益的。

The mathematical model of complex countercurrent multi-effect evaporation with condensed water flash is established, which aims at minimum annual cost (including cost of fresh vapor, vacuum pump power, evaporator, maintenance and depreciation).Based on such decisive variables as the pressure of fresh vapor, the pressure of condenser and heat-transfer mean temperature difference of vari-effect,the model is solved by the complex method,Lagrangian multiplier method, iteration method and matrix method.The practical example indicates that the influence of the pressure of fresh vapor, the pressure of condenser and flash of condensed water on the optimum design results is notable.

建立了带有冷凝水闪蒸的复杂逆流多效蒸发系统优化设计的数学模型，该模型以整个蒸发系统的年总费用(包括加热蒸汽年费用、真空泵年动力费用以及蒸发器和辅助设备的年折旧维修费用等)最小为优化目标，以生蒸汽压力、冷凝器真空度及各效有效传热温度差为决策变量，提出一种新算法———复合形法结合Lagrangian乘子法、迭代法和矩阵法求解模型。

Pan bottom consists of dry and wet surfaces.When heated,the pan produces vapor to sterilize.Reaching the cold bottom of condenser,vapor will be condensed into water and drained back into pan.When the temperature in condenser reaches 90℃,vapor will be released from the vent devised with a whistle alarm.

底锅分为干表面和湿表面二部分，加热时可产生过热的高温蒸汽进行灭菌，当蒸汽进入冷凝器底部时，则遇冷被冷凝成水，经回水管又流回底锅，水———汽在锅内闭路循环，直至冷凝器中水温达到90℃以上时为止，此时蒸汽则通过出气管外逸，吹动哨片发出响声报警。

This thesis analyses the condenser's common faults, discusses the reasons and symptoms of the condenser's vacuum deterioration.

本文还分析了凝汽器的常见故障，重点分析了凝汽器真空恶化的原因及征兆。

Therefore, at the time of installation and maintenance of condenser, the vacuum system precision of condenser should be achieved as far as possible.

因此，在凝汽器安装与维修时，应尽可能使凝汽器真空系统达到严密。

In order to obtain higher vacuum degree for condenser, the saturation temperature of steam inside the condenser should approach the temperature of cooling water in all likelihood.

为使凝汽器获得较高的真空度，就要使凝汽器内蒸汽的饱和温度尽可能接近冷却水温度。

The purpose is to increase the hot exchange potentiality of the steam condenser and improve the vacuum of the steam condenser.

通过对2号汽轮机低压缸排汽通道进行优化改造试验，发挥了凝汽器铜管的热交换潜力，提高了凝汽器真空度。

Since the condenser pressure depends on condensation temperature, the factor influencing condensation temperature is also the factor influencing vacuum degree of condenser.

由于凝汽器压力取决于凝结温度，因此，影响凝结温度的因数也就是影响凝汽器真空度的因数。

And it made her warm all over, which was more than David had ever done.

她觉得自己周身发热，比大卫和她**的时候都热。

I have many good ''.'remembrances'.

学生时代给我留下了不少美好的''。