机组

In this paper,the system principle of the air cooled screw heat pump total heat recovery unit was introduced.

本文对热泵全热回收空调机组系统原理进行了介绍，并通过对风冷热回收机组试验结果的分析，为该类型机组的设计及应用提供参考。

Air-conditioning chillers to do the work of energy conservation, the operator must understand the entire air-conditioning units and systems to adapt to the working principle and characteristics of the operation units.

要使风冷冷水机组的工作做到节能，操作人员要了解机组及整个空调系统的工作原理和适应机组特点的操作程序。

A simulation model of heat pump chiller is very important for predicting the thermodynamic performance of the system.

热泵机组的系统模拟是研究热泵机组在不同运行工况下热力性能特性和优化机组的前提条件。

In recent years, the company has completed 125 MW power plant in Sichuan Minjiang River unit, 125 MW unit of Pingdingshan in Henan, Shaanxi water-power plants of 300 MW Unit, Chengdu, Sichuan Wayao three 55 MW power plant unit of the overall task of construction and the construction of the Sichuan, Chongqing, Guizhou, Henan, Guangxi, Guangdong, Fujian, Hunan, and so a large number of 1,200 square meters to 10,000 square meters of hyperbolic cooling towers, 60 ~ 240 M Xin, such as its smoke 50 cigarettes or tower construction, construction output in 2003 from the 21000000-2004 years 55 million, from 2005 the 110000000-2006年230 million for four consecutive years of double the rate of increase has created one after another miracle!

近年来，公司先后完成四川岷江电厂125MW机组、河南平顶山125MW机组、陕西清水川电厂300MW机组、四川成都三瓦窑电厂55MW机组的整体建筑工程施工任务，并承建了四川、重庆、贵州、河南、广西、广东、福建、湖南等一大批1200㎡～10000㎡的双曲线冷却塔，60～240M烟囟等其计50座烟塔的施工，施工产值从2003年的2100万到2004年的5500万，从2005年的11000万到2006年23000万连续四年翻倍的速度递增，创造了一个又一个的奇迹！

E. , when they run under low temperature in winter, the formation of frost on airside heat exchanger surface has become a common problem, which leads to degradation of heating capacity and has effects on its normal running.

主要表现在机组冬季运行时，当空气侧换热器表面结霜时，会减小机组的供热能力并影响其正常工作，常造成机组运行的不稳定，使机组运行中常发生故障，甚至于停机。

Aiming at the low efficiency and laggard running of domestic double extraction turbine, flow passage is modified with four-dimensional technology,then the output has been increased,coal cost has been reduced,and also hidden safety trouble of unit has been removed,in the end,the safe and economical operation capacity of the unit has been improve

针对国产200 MW双抽供热汽轮机效率低、安全运行水平落后的状况，采用全四维技术对通流部分进行改造，提高了机组的出力，降低了机组的煤耗，消除了机组中存在的安全隐患，提高了机组安全经济运行的能力。

A supercritical heat-supply unit with a double reheat employs steam extraction from a low-pressure turbine cylinder for supplying process heat.

针对二次再热超临界供热机组采用低压缸分缸抽汽供热的特点，利用等效热降理论，进行分析与数学推导，得出了该类型机组抽汽等效热降和抽汽效率的计算方法，形成该类型机组的经济性定量分析数学模型，从而将等效热降理论的应用范围拓展到二次再热供热机组。

Abnormal vibrations of units and mill construction may cause the equipments in hydroplant inefficient, create fatigue in components of units, consequently, affect safe and stable operation of units, and the benefit of the hydroplant is also influenced.

机组和厂房结构的异常振动可使厂房内的仪器设备失效，机组部件疲劳或破坏，从而影响机组的安全稳定运行，致使电站不能长期合理发挥效益；同时，机组和厂房结构的异常振动及其附带产生的较大的噪声会使现场工作人员产生不适，长时间暴露在较强振动与噪声下，对厂房内工作人员的身心健康会产生不良影响。

Group companies responsible for water, electricity, gas supply, foreign Forwarders Electrical engineering, plumbing engineering, Die with, cold-formed and welded pipe mill roll forming production, welded pipe mill, cold-formed units, strip slitting unit and other non - Design and manufacture of standard equipment.

公司除负责集团公司水、电、汽供应外，对外承揽机电工程、水暖工程、冷冲模具、冷弯及焊管机组成型轧辊制作、焊管机组、冷弯机组、带钢纵剪机组等非标设备的设计制作。

So the research on the thermo-economics analysis of thermal power plant is significant, this paper focuses on this field and gets some conclusions as follows: Based on Equivalent Enthalpy Drop Method and Cyclical Function Method, a conception, New Heating Steam Flow, is proposed and defined in this paper, which makes it possible to separate the cogeneration circle into condensate steam circle and heating steam circle and to get the new power equation and calculate the Rate of Electrical Power Generation by Heating Steam with Net Equivalent Enthalpy Drop.

在等效热降法的基础上，结合循环函数法的循环分析理论，通过引入热化新蒸汽量的概念，使得常规抽凝供热机组的纯凝汽循环与供热抽汽循环得以分离，从而得出了相应的供热机组汽轮机的功率方程，并实现了热化发电量与净等效热降计算的统一，最终完成了利用等效热降法对供热机组热化发电率的计算，使得已在凝汽机组中应用成熟的等效热降法可以方便地应用于供热机组，进行经济性分析和计算。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。