水膜式除氧器

除氧器安装使用说明书

INSTALLATION INSTRUCTION

OF

DEAERATOR

江苏火电电力设备制造有限公司

JIANGSU ELECTRIC POWER EQUIPMENT MANUFACTURING CO., LTD

旋膜式除氧器

ROTATING-FILM TYPE DEAERATOR

新型旋膜式除氧器是近十几年来研究并推广的一种全新结构的除氧器，该种型式的除氧器目前已在全国大、中、小电厂普遍推广应用，数百家电厂在运行使用中收到了很好的经济效益和社会效益。

Rotating film type deaerator is recent ten year research production and promotion products which has a complete new structure. This type deaerator has been used in domestic power plants of big size, middle size and small ones, and hundreds of power plants have achieved good benefits both economic and social.

经实地运行证明：新型旋膜式除氧器，不但具有运行稳定，除氧效率高，适应性能好，对水质、水温要求不苛刻等优点外，而且可超出力50％左右运行，尤其供热机组和滑压运行的除氧器更显示出其优越性能。

This type deaerator has been approved through operation that it has stable function, high deoxidation, good performance, and it is not critical to water quality and temperature, and could operate under 50% exceeding rated capacity, especially good for heating generation and slide pressure operation condition.

一、用途及型号:USAGE AND MODEL NUMBER

CY－、CYM－系列新型旋膜式除氧器（以下简称除氧器）是用汽轮机抽汽将锅炉给水加热到对应除氧器工作压力下的饱和温度，除去溶解于给水中的氧及其它气体，防止和降低锅炉给水管道、省煤器和其它附属设备的腐蚀。

其型号由汉语拼音字母CY（M）－和除氧器的主要特性数据（处理水量T／H）二部分组成。CY- and CYM- serial deaerator (short as deaerator) is to heat the boiler feed water to saturated temperature corresponding to deaerator working pressure by using turbine extraction steam, eliminate the oxygen and other gas in the water, reduce the corrosion of the boiler feed water pipeline, fuel economizer and other auxiliary equipments.

二、技术特性和配套参数:TECHNICAL CHARACTERISTIC AND PARAMETER

CY－系列低压新型旋膜式除氧器: CY- serial low pressure rotating film type deaerator

CYM-系列新型除氧器: CYM- serial deaerator

三、结构:STRUCTURE

除氧器的结构型式参见附图。它是由(1)外壳(2)起膜器(3)淋水蓖子(4)液汽网(5)水箱等组成。The deaerator is composed by (1) shell (2) film collector (3) spray grate (4) liquid & steam net (5) water tank.

1.外壳：是由筒身和冲压椭圆形封头焊制成。低压中、小除氧器配有一对法兰联接上下部，

供装配和检修用，高压除氧器装有供检修的入孔。

Shell is welded of cylinder and stamping elliptical head. Small and middle

size low pressure deaerator has one couple of flanges connecting the top and bottom for assembly and repair purpose. High pressure deaerator has

manhole for repair purpose.

2.起膜器：由水室、汽室、起膜管、凝结水接管、补充水接管和一次进汽接管组成。

Film collector is composed by water tank, steam room, film collect pipe,

condensed water pipe, feed water pipe and inlet steam pipe.

3.凝结水、化学补水、经起膜管呈螺旋状按一定的角度喷出，形成水膜裙，在此通过一次

蒸汽接管引进的蒸汽加热，及由二次蒸汽接管引进的蒸汽经液汽网、水篦子后的蒸汽充分加热，达到接近除氧器工作压力下的饱和温度（即低于饱和温度2-3℃）并进行粗除

氧。一般经此膜段可除去给水中含氧量的90-95%左右。

Condensed water, chemical feed water helically sprays out at a certain angle through film collector to build up a water film net where steam from inlet

steam pipe will be heated, and the steam will fully heated with outlet steam flow through liquid & steam net and the grate to achieve the saturated