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1、高压除氧设备 high pressure deaerating equipment安 装 使 用 说 明 书Installation and Operation Manual目 录CONTENTS一、设备简介1. Equipment Introduction二、结构及原理2. Construction and Function三、除氧设备的安装3. Design, manufacture, installation and inspection of deoxygenating equipment四、除氧设备的运行4. Operation of Deoxygenating Equipment五
2、、除氧设备的检验5. Inspection of Deoxygenating Equipment六、除氧设备的停运保护6. Protection of Non Operating Deoxygenating Equipment七、供货范围7. Scope of Supply八、附设备外形图8. Outline Drawing of Equipment一、 设备简介1. Equipment Introduction本设备用于锅炉给水的除氧。This equipment is used to deoxygenate the boiler feedwater.1、本设备为热力喷雾淋水盘式除氧装置,由
3、高压除氧器与除氧水箱组成,用于电站锅炉给水的除氧。在正常工作下,利用汽轮机抽汽或压力得到控制且具有安全泻放装置的汽源作为加热蒸汽,将进入除氧器的水加热到与除氧器运行压力相对应的饱和蒸汽温度,根据道尔顿定律,将溶于水的氧与二氧化碳等非凝结气体除去,达到标准规定的除氧水,储存在除氧水箱中,随时准备供给用水的需要。1). This deaerating equipmentis of spray and packing type, consisting of high pressure deaerator and storage tank. It is applied to feedwater deo
4、xygenation of power station boiler, hot water boiler and other hot water equipment. In normal working condition, turbine's extraction steam or other steam source which pressure is under control and has safety relief device will be used as heating steam to heat the water entering the deaerator to
5、 the saturation steam temperature corresponding to the operation pressure of the deaerator. According to the Dalton Law, it will eliminate uncondensable gases dissolved in the water, such as oxygen and carbon dioxide, etc., so that the deoxygenated water will satisfy the standard requirements. The d
6、eoxygenated water will be stored in the storage tank for supply at any time.2、本设备适用于在设定、滑压力下作定压运行。定压运行时,备用加热蒸汽通过电动调节阀进入除氧器。根据除氧器内部的设定压力为0.147MPa.a,自动调节阀开度,以控制入口加热蒸汽量。2). This equipment is applicable to constant pressure and sliding pressure operation under the set pressure. Constant pressure operati
7、on under the set pressure ,The heating steam of Assistance enters the deaerator through the motor operated adjust valve. According to the internal set pressure (0.147Mpa.a) of the deaerator, it will automatically adjust the valve opening to control the flow of the inlet heating steam.3、高压除氧器采用双封头卧式结
8、构,通过支座坐落在水箱筒体上,水箱采用双封头卧式结构,除氧器及水箱通过下水管和蒸汽连通管进行连通,维持除氧器和水箱压力平衡,保证设备安全稳定运行。3). The high pressure deaerator adopts double-head horizontal construction , Pass to pay to install in the storage tank tube body top, The storage tank adopts double-head horizontal structure.connecting with storage tank cylind
9、er by the downcomer and steam connecting pipe, Maintain the pressure balance about the deaerator and the storage tank, Promise an equipments a safety and stabilize to circulate.4、高压除氧器设有(A48Y-16C)型弹簧全启式安全阀作为泻放装置,安全阀的开启压力和数量见设备图纸。4). The high pressure deaerating equipment is equipped with (A48Y-16C)
10、spring full opening safety valve as pressure relief device. For the opening pressure of safety valve and number , please refer to the equipment drawing.5、在水箱筒体上设有2对就地磁翻板水位计,用于现场观察,还根据需要设有3对平衡容器,用于远方水位显示及报警、控制水位,当水位高于预定值时,及时发出高水位溢流放水信号,自动开启气动调节阀进行排水,以维持水箱中的正常水位,保证设备稳定运行。另设2对备用水位测量接口,便于用户根据需要设置水位控制仪表。
11、5). There is two group local magnetic conversion water level gauge equipped on the storage tank cylinder for local observation. According to requirement, it is also equipped with three group of balance vesse for remote water level indication and alarm. When water level is higher than the predefined
12、value, it will give emergency drain signal and automatically open the air control regulates valve. It is equipped with two group of balance vessel to provide water level automatic adjust valve with water level signal to control the water level of the storage tank and for remote indication or as a st
13、andby.二、 结构及原理2. Construction and Function1、高压除氧器按水流方向,由上而下,分为排汽区段,空间区(除氧区)和填料区段。主凝结水及补给水,以及各处合格的疏水进入除氧器水室内,在压差的作用下,经多只弹簧喷嘴,在压差的作用下形成射流喷射,形成伞状的水膜裙,加热蒸汽由淋水盘填料层侧面进入,在淋水盘间折流穿行,与入口水逐级相遇,进行热质交换。将入口水加热到与除氧器运行压力相对应的饱和蒸汽温度,溶解于水中的氧气及不凝结气体,自水中逸出,经除氧器(头)上部的汽水分离装置和排汽管汇集管,排入大气,排氧门可以根据出水含氧量指标的变化,及时进行调整开度,以保证在出水含氧
14、量达标的情况下节能。入口水在空间区内完成一次除氧,在淋水盘层完成二次除氧。除氧水由除氧器自流而下,经下水管自由下落,汇集于除氧水箱内。除氧器端部还设有高加疏水管,为减少高加疏水对除氧器内件的冲击,设有不锈钢挡板,对进入的高加疏水进行汽水分离。这种除氧器的传热系数较高,可在较短的时间内将水加热到要求的状态,达到除氧效果。1). According to the flowing direction of the water, from top to bottom, the high pressure deaerator is divided into steam venting section,
15、spray device (consisting of water inlet pipe assembly and nozzle), space section and packing section. The main condensed water, feedwater make-up and all other qualified drains enter the spray device of the deaerator. Under the effect of pressure difference, the rotational water spray down like the
16、shape of membrane from the Several spring coils spray a mouth. Heat steam from pour the water dish filler layer on the side into, at pour the water dish fold to flow to wear a line. The primary heating steam rises from the bottom of the packing, passing through the packing and the water distribution
17、 spacers, it passes through the hollow part and outside surface of the water skirt inside, and gradually meets the inlet water to perform heat exchange. When the inlet water is heated to the saturation steam temperature corresponding to the operation pressure of the deaerator, the oxygen and other u
18、ncondensable gases dissolved in the water will be isolated from the water and vented to the atmosphere through the vent pipe of the steam/water separator at the top of the deaerator. The inlet water implements the first deoxygenation in the spray atomization section and finishes the second deoxygena
19、tion in the packing. The deoxygenated water flows down in the deaerator, passing through the water distribution pipe of the storage tank, It is collected in the storage tank. Establish H.P. heater drain inlet at the end of deaerator , For reduce H.P. heater drain inlet to in addition to the impact o
20、f the piece inside the oxygen machine, Establish the stainless steel blocks plank, H.P. heater drain inlet to carry on separation towards enter of highly.The heat transfer coefficient of this kind of deaerator is high; it can heat the water to satisfy the requirements in short time and reach the deo
21、xygenation and heating effect.2、除氧水箱由卧式筒体和两个封头焊制而成,水箱两端设有两个供检修和维护用的人孔。筒体内设有多道T型加强圈,以保证水箱的强度和刚性。除氧水箱内设不锈钢再沸腾辅助加热管,启动时或需要时,加热蒸汽通过沸腾管上的小孔,沸腾鼓泡,将水箱内给水进行再加热升温。水箱底部设有3个除氧水(下水管)出口,下水管顶部设有特殊的防旋涡装置,防止出水在给水泵处产生汽蚀。水箱侧面设有高位排水(溢流)管,当水箱水位超过高水位时,由DCS发出信号,开启气动调节阀进行高水位放水,以保证设备正常运行。在水箱上部还设有设有给水再循环接管,该管深入水箱上部空间,给水由管上诸
22、多小孔均匀喷出,均匀的洒在水箱水箱面上,以减少水面波动,水箱上部可能滞留的气体,通过蒸汽连通管排至除氧器空间内,直至通过除氧器顶部的排氧门排出,维持除氧器稳定安全运行。水箱上留有就地水位测量接口和远传水位测量接口,就地压力、温度和远传压力、温度测口,便于就地观察水位、压力和温度,并实现远方控制水位、压力和温度。). Ys-180 storage tank is welded by horizontal cylinder and two heads, and there are two manholes at its two ends for checking and maintenance.
23、There are a lot of T-shaped stiffeners in the cylinder to guarantee the strength and rigidity of the storage tank. The storage tank is equipped with reboiling auxiliary heating pipe, this heating pipe adopts main pipe branch structure, if necessary, the heating steam boils and bubbles up through the
24、 nozzles and holes in the boiling pipe to heat the feedwater. The storage tank bottom establishes 3 in addition to the oxygen water(enter water a tube) export, It is equipped with a special anti-vortex device to prevent cavitations in the feedwater pump. There are high level drain (Overflow to flow
25、)pipes a on the side of the storage tank, when the water level of the storage tank exceeds the high water level, the electric contacts will give signals to open motor operated valve for draining. At the top part of the storage tank, there is equipped with feedwater recycle nozzle, this pipe is deepl
26、y inserted in the upper space of the storage tank, the feedwater sparges out through the holes in it and is evenly sprinkled on the surface of the storage tank to reduce the fluctuating of the water. The gas which may be detained in the top of the tank will be vented to the deaerator through the pip
27、es connecting storage tank and deaerator, so as to maintain the stable and secure operation of the deaerator. Stay the water level diagraph to connect and Far EasTone Telecommunications Co., Ltd water level diagraph to connect right on the spot on the water tank, right on the spot the pressure,tempe
28、rature and Far EasTone Telecommunications Co., Ltd pressure,temperature measure, easy to observe the water level,pressure and temperature right on the spot, and carry out the far-away place control water level,pressure and temperature.三、除氧设备的安装3. Design, manufacture, installation and inspection of d
29、eoxygenating equipment1、本设备的安装,应符合固定式压力容器安全技术监察规程,GB150-1998钢制压力容器,电站压力式除氧器安全技术规定,JB/T10325-2002锅炉除氧器技术条件及电力建设施工及验收技术规范(汽轮机机组篇)的规定。油漆,包装,运输按JB/T4711-2003压力容器涂敷与运输包装执行。1). Design, fabrication, inspection, test and acceptance criteria of this equipment shall comply with the requirements of GB150-1998
30、"Steel Pressure Vessels", "Supervision Regulation on Safety Technology For Stationary Pressure Vessel " and JB/T10325-2002 " Boiler in addition to oxygen machine technique condition ",and under supervision of "Supervision Specification For Technology And Safety of
31、Pressure Vessels"and The installation of the equipment shall be in accordance with DLJ53-81 "Construction And Acceptance Criteria of Power Plant Building (turbine)". Painting, packing and transportation of the equipment shall comply with the requirements of JB/T4711-2003 "Paintin
32、g, Packing And Transportation Of Pressure Vessels".2、现场组装的焊缝应符合设计图纸(设备系统图)技术要求中的规定。2). The welding seam assembled at site shall comply with the regulations of the technical requirements in the design drawings.3、水箱安装式就位找平,除氧器保持垂直。水箱的鞍座面及基础台板,在水箱就位前,必须清扫干净平整。滑动支座的滚体,位置安装应适当,滑动支座底板长圆孔在安装时,应在水箱膨胀方向
33、留有足够的膨胀间距。滑动支座的地脚螺栓应采用两个螺母,第一个拧紧后,倒退一圈。再用第二个螺母锁紧。3). The storage tank shall be horizontal, and the deaerator shall be perpendicular to the base plate and seating support of the storage tank. Before the storage tank takes its place, the movable seating support must be cleaned clearly, and the install
34、ation position shall be proper. When installing, the oblong hole of the movable seating support shall have sufficient expansion space in the storage tank's expansion direction. The anchor bolt of the movable seating support shall be fastened by two nuts, after the first one is tightened, unscrew
35、 it one turn, then use the second nut to tighten it up.4、设备组装完毕后,保温前按图纸要求进行水压试验,若发现缺陷,及时采取措施处理,处理后再做水压试验,直至合格。 4). After the equipment is assembled, it shall be hydrostatic tested before performing thermal insulation according to the requirements in the drawing. If defect is found, timely measures s
36、hall be taken to deal with it. After the treatment, perform hydraulic test again, till the equipment is acceptable.5、水压试验合格后,将设备内部清扫干净,外表面补涂防锈漆,然后进行保温施工,保温按设计院设计要求进行。5). After passing the hydraulic test, clean the inside of the equipment, paint it with antirust paint according to the drawing, then p
37、erform thermal insulation, the thermal insulation shall be done as the design requirements of the Designing Institute.6、检查设备内部部件完整、齐全,并按图纸安装正确。安装后,对各部件进行调试,各阀门开启灵活、可靠、无卡涩现象,动作准确无误。水箱在充水过程中,观察水位计指示准确。6). Check if the inner parts of the equipment are complete, and properly installed according to the d
38、rawings. After installation, adjust each part and check if the valves are flexible and reliable without block and if the action is correct. During feeding water in the storage tank, observe if the indication of water level meter is correct.7、安全阀在安装时,应先调整其开启压力,并应保证其灵活、无卡涩现象,关闭后,无泄漏现象。7). When install
39、ing the safety valve, adjust its opening pressure first and guarantee it is flexible without block; after closing, it has no leakage phenomenon.8、(单室)平衡容器的水位高度,采用模拟信号,使其在水箱正常水位高度时,差压变送器输出的电流信号为0mA,水箱水位变化时,远方显示水位装置所显示的水位,与就地水位计保持一致。 8). Control the water level of the balance vessel, and use analog si
40、gnal to make the current signal sent by the differential pressure transmitter is 0mA when the storage tank is at the normal water level. When the water level of the storage tank changes, the water level displayed by the remote indication shall be the same as that of local water level gauge.9、气动高水位溢流
41、调节阀用DCS信号试验,动作灵活、准确。与水箱水位保持一致,在高水位位置时,应发出高水位信号,开启气动电动调节阀放水。9). Use analog signal test to check if the action of the motor(the air control) operated water level adjust valve is flexible and correct, and consistent with the water level of the storage tank. In the high level position, it shall give hig
42、h water level signal to open the drain motor (the air control)operated valve.四、除氧设备的运行4. Operation of Deoxygenating Equipment本设备的运行,由电厂根据热力系统的具体情况拟订运行规程。The operation rules of this equipment shall be made by the power station according to the specific condition of its heating system.本说明书所列,仅供参考。This
43、 manual is only for reference.运行方式要点:The main points of its operation modes:1、启动。1,start. 在初次启动和经过较长期停用后启动,水箱内空洞无水,应首先经管道输入化学除盐水或凝结水。启动时,必须以打循环的方式加热存水。从水箱流出的水经过管道流向专用的再循环泵,升压后流向除氧器,打开备用汽源,在除氧器内加热再循环水,加热后此水流入水箱,如此往复,水箱内存水逐步加热升温,在除氧器内压力由大气压上升到0.147MPa.a时,可以做定压运行。启动时,适当开启除氧器上部排汽门、水位计、及平衡容器操作阀门,其它阀门暂时关闭
44、。Because the water tank is empty in first startup and startup after non-operation for a long time, it should be filled with chemical desalting water or condensed water through the pipe. When startup, do heat the remaining water in cycle mode. The water flowing out of the tank flows into the special
45、re-circulating pump through pipe and then into the deaerator after pressure rise. Turn on the standby steam source and heat the re-circulating water in the deaerator, after which this water will flow into the tank. The remaining water in the tank will be gradually heated and warmed up by repeated do
46、ing like this. When the pressure in the deaerator rises from atmospheric pressure to 0.147MPa.a, run at fixed pressure. When startup, open the upper exhaust valve, water gauge and balancing vessel operating valve of deaerator appropriately and close other valves temporarily.2、转入正常运行2,Turn to go into
47、 normal movement 启动过程结束后,转入正常运行时,可以先通水侧,把来自低压加热器的主凝结水等水源通入除氧器水室,以进入除氧器除氧,可在0.147MPa.a下做定压运行,其余各进出阀门开启,除氧水箱的出水流向给水泵升压送入高加或锅炉。Turn to go into after starting the process be over normal circulate, Can first water side, Come from low-pressure heating apparatus of main condense a water etc. The headwaters
48、 open into in addition to the oxygen machine water room with enter in addition to in addition to oxygen, The oxygen machine can do to certainly press movement under the 0.147 MPa.a, The rest is each to pass in and out the valve door to open, In addition to of the oxygen water tank water current is t
49、oward the water supply pump rises to press to send to go into high add or boiler.当机组负荷升至20%时,应把汽源自动切换到四段抽汽,同时关闭备用汽源,除氧器自动进入滑压除氧。Should derive from a vapor to move to cut over to fourth segments to take out a vapor when crash a set of burden rise to 20%, Close the back up vapor source in the meantime
50、, In addition to the oxygen machine enters to slip to press automatically in addition to oxygen.在正常滑压运行时,加热蒸汽(四段抽汽)不需调节,主汽管不设调节阀。用户必须在备用汽源上设置蒸汽调节阀,当低负荷或需要投入备用汽源时,对备用汽源作压力调节,也可在此工作状况下做定压运行。In normal sliding pressure operation, it is not required to control the heat-up of the steam (section 4 steam ex
51、traction) or set control valve on the main steam pipe. The user must set the steam control valve on the standby steam source and control the pressure at low load operation or running the standby steam source is necessary, or run at fixed pressure in this operating condition. 除氧器本体设有远传压力传输,一旦运行压力超过设定
52、压力,应实现报警。此时应关闭汽源,防止除氧器超压或爆破。用户应考虑把甩负荷信号连接到加热蒸汽(四段抽汽)管道上的抽汽止回阀,一旦汽轮机突然甩负荷时立即关闭抽汽止回阀,防止除氧器内蒸汽反冲入汽轮机。In addition to the oxygen machine essence establishes the Far EasTone Telecommunications Co., Ltd pressure to deliver, Once circulating pressure to exceed enactment pressure should carry out to report t
53、o the police.Should close the vapor source at this time, Prevent°from in addition to the oxygen machine is super to press or blow up.The customer should consider jilt the burden signal to link to heat the vapor check valve in take out of the steam(four the segments take out a vapor) piping, onc
54、e the vapor round the machine jilts burden suddenly close to take out the vapor check valve immediately, Prevent°from in addition to the oxygen steam inside the machine is anti- to hurtle into the vapor round machine.3、在升负荷至额定工况过程中,水位自动调节等各自动控制设施投入运行,并调整合适。调整排汽阀门开度在合适位置,注意观察各项仪表。3,During the pe
55、riod of rising to carry to the sum to settle the work condition, The water level regulates to wait each auto control facilities devotion movement automatically, And adjust accommodation.Adjust the row vapor valve door opens a degree in the suitable position, Noticing to observe various appearances.4
56、、当负荷降至20%以下时,应自动关闭抽汽阀门,同时打开备用起源进汽阀,使除氧器维持在0.147MPa.a压力下定压运行。4,Be burden to decline to 20% following, Should the auto close take out the vapor valve door, Openning the back up origins to enter the vapor valve in the meantime, Make in addition to the oxygen machine maintains under the 0.147 MPa.a pres
57、sure to certainly press movement.5、停运时先停汽,关闭抽汽阀门,然后再停水侧。5,Stop luck stop a vapor first, Close to take out the vapor valve door, Then stop a water side. 在突然甩负荷时,应立即关闭进汽阀,防止蒸汽倒灌汽轮机。While jilting burden suddenly, Should close immediately into the vapor valve, Keep steam from pour to infuse the vapor ro
58、und machine.6、运行中需注意事项6.Precautions in operation6.1 加热蒸汽采用汽轮机低一级抽汽,不得采用高一级抽汽。当机组启动或低负荷运行时,可根据加热蒸汽参数(或另用辅助汽源)。 确定除氧器的运行压力,如必须使用高一级抽汽时,应考虑十足的安全措施。本设备在任何情况下,严禁超设计压力运行.6.1The heated steam shall adopt low-level extraction steam of turbine, not high-level extraction steam . When the unit is started or in
59、low load operation, the operation pressure of the deaerator could be determined according to the parameters of the heating steam (or use another auxiliary steam source). If it must use high level extraction steam, adequate safety measures must be taken into consideration. In any cases, it is strictly forbidden to operate this equipment under the pressure exceeding the design pressure.6.2 开进水阀向除氧器送水时,水量应缓慢地增加或减少,不允许有较
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