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Of tube bundle existing in the key equipment- economizer .

介绍了硝酸尾气处理装置的工艺流程，分析了关键工艺设备——省煤器存在的管束堵塞等问题。

The paper mainly introduced quality analyses and control of water wall economizer of boiler heating surface in course of manufacturing,and the key process quality control method of boiler product.

介绍锅炉受热面膜式省煤器等产品在制造过程中内在质量的分析与控制及锅炉产品制造过程中关键工序质量的控制方法。

The low-pressure economizer installed in thermal system of power stations gives a useful option for reducing the coal consumption rate .

在电厂的热系统内增设低压省煤器是降低发电标准煤耗的有效措施。

This paper also analyzes the ash wear mechanism,and then does the effects of low temperature economizer wear five factors: the first is the smoke corridor caused by wear mechanism,the second is the impact on the wall material,and the third is that of flying ash concentratio.

分析了飞灰磨损的机理，然后分析了影响低温省煤器磨损的5种因素，一是烟气走廊引起磨损的机理；二是管壁材料的影响；三是飞灰浓度的影响；四是过量空气系数的影响；五是烟气成分的变化对磨损的影响。

Introduces the design thinkings and parameters of water wall system, economizer system and combustion system. Emphasizes the compact structure and economic advantages of natural gas fired boiler.

分述了锅炉水冷壁系统、包墙系统、省煤器系统、燃烧系统等的设计思路和参教，强调了燃气锅炉结构紧凑的特点和经济性。

This paper describes the application of optimization technology in the design of low pressure economizer fixed with fined tubes in Shandong Weihai power station,and discuses the stability of the optimum parameters.

文中叙述了最优化技术在山东华能威海电厂螺旋肋片管低压省煤器设计中的应用，并对最优参数的稳定性进行了分

Can be divided into type economizer exit of the steam superheater safety valve outlet must be installed.

可分式省煤器出口处、蒸汽过热器出口处都必须装设安全阀。

High temperature pipes for boiler water-cooling wall, economizer, reheater and steam pipeline, low temperature and pressure vessel pipes.

适用于锅炉水冷壁、省煤器、再热器、过热器和蒸气管道的高温和压力容器制造的钢管。

The economical evaluation mainly depended on parameters of indoor air, supplied air temperature and selection of outlet. The influence of less economizer cycle's operating times due to using cold air distribution systems on annual economical efficiency of air-conditioning system was analyzed.

低温送风系统的经济性评价主要取决於室内参数和送风温度的设定及末端送风方式的选择，分析了省能器循环的减少对低温送风系统全年经济性的影响。

In 2002 the company adopted the ISO9001: 2000 quality management system certification, a Class A boiler parts that qualified, professional for the Shanghai Boiler Factory Co., Ltd. to support the production of boilers for power stations, overheating, economizer, and other products.

公司于2002年通过了ISO9001：2000质量管理体系认证，具有A级锅炉部件知道资质，专业为上海锅炉厂有限公司配套生产电站锅炉再热器、过热器、省煤器等产品。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。