3151/3051法兰式压力变送器应用_智慧热网供热系统改造工程压力仪表制造厂家
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3151/3051法兰式压力变送器应用_智慧热网供热系统改造工程
信息来源: 液位计生产 | 2020-09-23 点击量: 294

 

基于数据挖掘技术对热源、热力站及热用户安装设备的运行状态进行异常判断和智能排查,并通过历史运行数据分析得出热源、热力站和热用户的调控习惯。采用大数据处理方法对热网的运行工况给出故障诊断和偏离最佳工况的诊断。并给出适合各热力站和热源的控制策略,进而指导全网节能安全运行,热源级智慧热网数据应用层功能
 所3151/3051法兰式压力变送器应用_有变送器均具有现场数字显示,直观地指示测量压力。智能型产品的LCD多段显示器可显示测量压力、变送器输出电流或量程百分比,并以棒图形式显示测量值百分度,
 当变送器出现故障时,LCD指示器将显示报警信息。
    变送器可方便地进行重新标定。变送器带有现场按键,配合LCD参数指示,可方便地进行现场设置。
    产品采用标准模块化设计,具有相同的结构,可以方便地进行更换或升级。传感器提供可选的多样材质,以满足不同的现场需求。
    产品适用于液体、气体介质的测量,广泛应用于石油化工、电站、冶金、制药、食品、舰船及其它所有工业场合。
热源供水温度及设备启停等远程控制或者自主运行控制;
采用大数据处理方法对海量设备运行数据进行分析,并进行相应的故障诊断和偏离最佳工况的诊断;
热源与热网调控策略的连锁保护。3151/3051法兰式压力变送器应用_智慧热网供热系统改造工程

①室外温度补偿等多种控制策略:调节阀控制,二级管网供水温度恒定运行, 二级管网供回水平均温度运行,流量恒定运行,流量曲线运行,室外温度补偿,分时控温运行。
① Outdoor temperature compensation and other control strategies: control of regulating valve, constant operation of water supply temperature of secondary pipe network, average temperature operation of supply and return level of secondary pipe network, constant flow operation, flow curve operation, outdoor temperature compensation, time-sharing temperature control operation.
②压力控制:二级管网供回水压差调节控制回路,二级管网回水定压控制系统,电磁阀泄压控制。
② Pressure control: secondary pipe network supply and return water pressure difference regulation control circuit, secondary pipe network return water constant pressure control system, solenoid valve pressure relief control.
③报警功能:一级管网回水温度高限,二级管网供水压力高限,二级管网供水温度高限,二级管网回水压力低限,二级管网供回水压差低限,水箱水位高限、低限,循环泵变频器故障,补水泵变频器故障等情况,要求控制器能够及时报警,并将报警信息远传至远程监控中心。3151/3051法兰式压力变送器应用_智慧热网供热系统改造工程
③ Alarm function: high limit of return water temperature of primary pipe network, high limit of water supply pressure of secondary pipe network, high limit of water supply temperature of secondary pipe network, low limit of return water pressure of secondary pipe network, low limit of water supply and return water pressure difference of secondary pipe network, high and low limit of water tank water level, failure of circulating pump frequency converter, failure of frequency converter of make-up water pump, etc., the controller is required to alarm in time and transmit the alarm information to remote Monitoring center.
④补水箱液位控制:当水箱液位低于低限值时补水电磁阀自动开启;当液位到达高限时补水电磁阀自动关闭,从而实现补水箱自动上水功能。
④ Level control of make-up water tank: when the water tank level is lower than the low limit value, the make-up water solenoid valve will open automatically; when the liquid level reaches the high limit, the make-up water solenoid valve will be closed automatically, so as to realize the automatic water filling function of the make-up water tank.
⑤电磁阀泄压:当二级管网压力超过设定值时,电磁阀自动通电打开泄压;当压力达到低限值时,电磁阀自动断电关闭。
⑤ Solenoid valve pressure relief: when the pressure of the secondary pipe network exceeds the set value, the solenoid valve will be automatically powered on to open the pressure relief; when the pressure reaches the low limit value, the solenoid valve will automatically power off and close.
⑥联锁控制:二级管网回水压力高于定压值时,启动变频循环泵并做自锁,进行二级管网供回水压差调节,此时延时开启一级管网电动调节阀进行二级管网供水温度自动调节等保护措施。
⑥ Interlock control: when the return water pressure of the secondary pipe network is higher than the constant pressure value, start the frequency conversion circulating pump and do self-locking to adjust the supply and return water pressure difference of the secondary pipe network. At this time, delay to open the electric control valve of the primary pipe network to automatically adjust the water supply temperature of the secondary pipe network.
⑦断电保护、来电启动:控制器具备自我保护和自我诊断功能。当系统断电时,将参数自动保存,来电后可以自动安全运行。
⑦ Power off protection, call start: the controller has self-protection and self diagnosis functions. When the system is powered off, the parameters will be saved automatically, and the system can run automatically and safely after calling.
⑧巡检功能:为了实现无人值守热力站的管理,有效管理巡站人员的巡站时间,要求在热力站节能控制装置设有巡检签到功能,巡站人员在控制装置输入员工编号,即可将巡站信息、巡站时间传输到中心监控平台,有效地管理巡站人员。
⑧ Patrol inspection function: in order to realize the management of unattended thermal station and effectively manage the patrol time of station patrol personnel, it is required that the energy-saving control device of the heat station shall be equipped with the function of inspection sign in. The patrol personnel can input the employee number in the control device, and then the station inspection information and time can be transmitted to the central monitoring platform to effectively manage the station patrol personnel.
⑨数据储存:当通信网络由于外界客观原因暂时中断时,测控系统具有数据暂存功能,能够每隔1min储存1次测量数据,并储存至少48 h的数据。当通信网络恢复时,能够自动通过网络上传或通过储存介质上传。
⑨ Data storage: when the communication network is temporarily interrupted due to external objective reasons, the measurement and control system has the function of data temporary storage, which can store the measurement data every 1 min and store the data for at least 48 h. When the communication network is restored, it can upload automatically through the network or through the storage medium.

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