电加热器说明书

DRK 型空气电加热器 DRK Electric Air Heater 使用说明书 Operating Instruction Manual 江苏国能环保设备有限公司 Jiangsu Guoneng Environment Protection Equipment Co Ltd 一 一 前言前言 PrefacePreface DRK 型空气电加热器是我厂近年来研制成功的专门供燃煤发电厂除灰系统使用 的新型加热设备 该设备由空气电加热器和控制系统两个部分组成 发热元件采用 1Cr18Ni9Ti 不锈钢无缝管作保护套管 0Cr27A17MO2高温电阻合金丝 结晶氧化镁粉 经压缩工艺成型 使电加热元件的使用寿命得以保证 控制部分采用先进的数字电 路 集成电路触发器 高反压可控硅等组成可调测温 恒温系统 保证了电加热器 的正常运行 DRK electric air heater the new type heating equipment special for coal fired power plant ash collection system is successfully made by our company recent years This equipment consists of electric air heater and control system Heating unit adopts 1Cr18Ni9Ti seamless steel tube as the protective case After compression craft formation 0Cr27A17MO2 high temperature resistance alloy wire and crystal magnesia powder could make sure the life of electric heating element Control part uses advanced digital circuit IC trigger and high counter voltage SCR to compose adjustable thermometer and thermostat system which insure the normal working of heater 该产品适用于电站空气输送斜槽气化风加热 电除尘器灰斗气化风和贮灰库气 化风加热等方面 This equipment use for power plant air delivery skewed slot gasification wind heating electric dust collector gasification wind and ash storehouse gasification wind heating 技术参数技术参数 TechnicalTechnical ParameterParameter 1 1 空气电加热器的规格与参数空气电加热器的规格与参数 SpecificationsSpecifications andand ParameterParameter ofof ElectricElectric AirAir HeaterHeater Item data Model 功率 capacity KW 输入电压 input voltage V 额定电流 rated current 每相A Phase A 进口温度 Inlet temp 额定流量 Rated flow m3 min 额定流量温升 Rated flow temp rise 最高工作 温度 Max working temp 进口法兰通径 Inlet flange drift diameter mm 压力 Pressure MP DRK4545380 22078 20 50 7 5 2320 300 125P 0 8 2 2 控制柜的主要技术指标数据控制柜的主要技术指标数据 MainMain TechnicalTechnical IndexIndex DataData ofof ControlControl BoxBox 1 输入电压 Input voltage 380V 5 三相四线 three phase four wire system 2 额定功率 Rated capacity 45KW 3 额定电流 Rated current 78A 单相 single phase 4 控温精度 Control accuracy 0 5 级 5 控温范围 control range 0 300 三 结构与工作原理三 结构与工作原理 StructureStructure andand operatingoperating principleprinciple 1 1 空气电加热器结构空气电加热器结构 StructureStructure ofof ElectricElectric AirAir HeaterHeater 电加热器是由多支管状电热元件 简体 导流板等几部分组成 管状电热元 件是在金属管内放入高温电阻丝 在空隙部分紧密地填入具有良好绝缘性和导热 性能的结晶氧化镁粉 采用管状电热元件做发热体 具有结构先进热效率高 机 械强度好 耐腐 耐磨等特点 筒体内安装了导流隔板能使空气在流通时受热均 匀 The electric air heater consists of multi tubular heating element drum flow deflector and etc Put the high temperature resistance wire in the metal tube and tightly fill in the void with crystal magnesia powder which has the high insulating property and high thermal conductivity The tubular heating element is a heating unit with the characteristics of advanced structure high thermal efficiency high mechanical strength corrosion resistant and wear resistance Flow deflector installed in the drum could make the air uniform heated when circulating 2 2 控制工作原理控制工作原理 ControlControl principleprinciple 数显温度控制柜采用数显温度调节仪 集成电路触发器 大功率可控硅和测 温元件组成测量 调节 控制回路 在电加热过程中测温元件将空气电加热器出 口温度电信号送至数显温度调节仪进行放大 比较后显示测量温度值 同时输出 0 10V 电压信号到可控硅触发组件的输入端 控制输出脉冲相位 从而控制可控 硅导通角度大小 使控制柜有良好的控制精度和调节特性 利用联锁装置可远距 离启动 关闭空气电加热器 Digital display temperature cabinet uses digital display temperature regulator IC trigger high power SCR and temperature element to compose the measuring loop regulating loop and control loop Temperature element sends the outlet temperature electrical signal of electric air heater to the digital display temperature regulator which could indicate temperature value after amplification and comparison Meanwhile the digital display temperature regulator outputs the 0 10V voltage signal to incoming end of SCR trigger assembly in order to control outlet impulse phase Consequently making control box being more controllable through control thyristor operating angle 四 安装与使用四 安装与使用 SetupSetup andand useuse 控制柜应安装在干燥通风 便于操作的地方 空气电加热器外壳 控制柜外 壳应可靠接地 空气电加热器应水平安装 底座螺母要拧紧使其稳固 本体与外接管道安装时 应注意进出口方向 安装测温元件时 应区别 端接入控制柜接线端子的 对应 处 加热器在使用前应测量电源接入端子与金属外壳的冷态绝缘电阻不得低于 2M 使用环境相对湿度不大于 85 电源线的出 入端应牢固可靠 不得松动 使用前首先检查电源线 测温元件输出联线是否正确 控制柜元器件 螺丝 是否松动损坏 如有异常及时拧紧或更换 确认无误后可通电试车 Cabinet should be installed in the dry ration and handy place Shell of electric air heater and cabinet could with the connection to the earth Electric air heater should adopt horizontal installation Make the base nuts tighten in order to fix heater 1 合上空气开关 QS 电源指示灯亮 数显表控制灯亮并显示所测温度指 示值 Open QS air switch power indicator light illuminates digital display control light illuminates and indicates the temperature value 2 温度的设定 temperature setting 1 温度控制仪面板示意图 diagram of temperature regulator panel 指示灯 切换开关 K 指示灯 显示器 设定电位器 W1 设定电位器 W2 XMT 数显温度调节仪 显示器 indicator XMT 数显温度调节仪 XMT digital display temperature regulator 设定电位器 set potentiometer 指示灯 indicator light 切换开关 switch 2 温度预置方法 Temperature initialization 将 切换开关 K 拨向右边 控制 旋转 设定电位器 W1 当顺时针旋 转时 温度设定值 T设增大 反之减小 温度预置完毕 再将 切换开关 K 拨 至中间 测温 此时显示测温值 即 T实 当 T T实 实 T T设设时 指示灯灭 Move K switch to right control position and spin set potentiometer W1 when clockwise rotation temperature setting value Tset would grow otherwise would reduce After temperature initialization moving K switch to thermometer position at this moment indicates the thermometer value Tactual When Tactual Tset control indicator light illuminates otherwise control indicator light off 3 报警设定方法 alarm setting 将 切换开关 K 拨向左边 报警 旋转 设定电位 W2 当数值达到 T设 预置完毕 再将 K 拨至中间 测温处 当 T T实 实 T T设设时 报警指示灯亮 Move K switch to left alarm position and spin set potentiometer W2 The initialization is finish when value arrive T设 then move the K switch to middle thermometer position When T实 T设 alarm indicator light off otherwise alarm indicator light illuminates 3 温度设定好之后 如无异常情况即可按下 加热器工作 按钮 交流接触 器 KM1吸合 可控硅进线端得电 有数显控温表所输出 PIDPID 电信号控制空气电加 热器工作 开机时 可能出现温度过冲现象 但逐渐趋向恒定范围之内 After setting temperature pressing the air heater operation button if there is no any abnormal Then AC contactor begin to work SCR input terminal picks up current electric air heater start ups via the control of PID electric signal output by the digital display temperature regulator After start a short time it may have a temperature overswing phenomenon but tends to gradually the constant scope 五 五 维护与保养维护与保养 MaintenanceMaintenance DRKDRK 系列空气电加热器特别是控制部分 系精密仪器 运输时要小心轻放 严禁冲击 撞打 简体部分应合理吊装 以免变形损坏内部发热元件 空气电加 热器及控制柜存放在库内 严禁淋雨 DRK series electric air heaters are precision instruments especially the control parts Handle with care and strictly prohibit the parts to be impacted Hoist the drum reasonably in order to avoid damaging the internal heating unit Electric air heater and the cabinet should be put in the warehouse strictly prohibiting to be exposed to the rain 六 故障原因与排除方法六 故障原因与排除方法 FailureFailure causecause andand repairrepair 故障一 电源指示灯不亮 数显表不工作 电压表无指示 排除方法 检查空气开关是否合上 控制回路熔丝是否完好 Failure 1 Power indicator light does not illuminate digital display instrument does not work pressure gauge does not indicate Repair Check whether air switch is off Check whether control loop fuse is broken 故障二 加热器温度不上升 排除方法 用示波器检查触发器有无输出脉冲波形 数显温度调节仪有无 PIDPID 信 号输出 Failure 2 Heater temperature does not rise Repair Check whether trigger outputs impu