对于济南www.878365.com控制柜使用的标准有哪些? - 济南www.878365.com价格
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对于济南www.878365.com控制柜使用的标准有哪些?
Time:2019-04-08 14:28:49       来源:/      

新一代节能型供水设备。主要用于高层建筑无塔供水,消防深井泵恒压供水等依据实时用水工况需求闭环调理水泵转速的场所,采用知名品牌的变频器、智能控制器、压力传感器及水泵组成闭环控制系统。多泵控制,管网压力稳定,进步供水质量,减少二次污染,节电效率高,可完成无人值守的无塔供水自动控制系统。

A new generation of energy-saving water supply equipment. It is mainly used for tower-less water supply in high-rise buildings, constant pressure water supply of fire-fighting deep well pumps and other places where the speed of water pumps is closed-loop regulated according to the demand of real-time water use conditions. The closed-loop control system is composed of well-known brand transducers, intelligent controllers, pressure sensors and pumps. Multi-pump control, stable pipe network pressure, improve water supply quality, reduce secondary pollution, energy-saving efficiency, can complete the unattended tower-free water supply automatic control system.
www.878365.com控制柜运用有些什么请求:
What are the requirements for the use of the air compressor control cabinet?
供方应为电站中压气系统提供一套以PLC为根底构成的控制柜,装置在www.878365.com室,PLC应采用性能不低于S7-300系列的可编程序控制器。www.878365.com维护应至少包括如下局部:
The supplier shall provide a set of control cabinet based on PLC for medium pressure air system of power station, which is installed in air compressor room. PLC shall adopt programmable logic controller with performance no less than S7-300 series. Air compressor maintenance shall include at least the following parts:
(1)www.878365.com电动机端相维护 ;
(1) maintenance of motor terminal phase of air compressor;
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(2)过载维护 ;
(2) Overload maintenance;
(3)各级气缸的压力过高维护 ;
(3) Over-pressure maintenance of cylinders at all levels;
(4)各级气缸的温度维护等 ;
(4) Temperature maintenance of cylinders at all levels;
控制柜内为2只www.878365.com各提供一块独立的控制盘,控制盘设有www.878365.com电动机启动控制器、自动空气开关等主回路设备和PLC、带红、绿色指示灯的“手动-关-自动”选择开关、按钮、信号灯、电源隔离变压器、继电器、电机维护等控制回路设备以及排气温度表,排气压力表、油压表、低油压停机继电器和电热器。自动控制安装应允许www.878365.com交替作“工作”机运转,当压力降到预定值时,自动启动www.878365.com。应提供www.878365.com自动控制所请求的全部压力信号器。还应提供三只辅助压力信号器,用于低压报警、高压报警和高压平安切断。控制柜至少应向计算机监控系统提供储气罐压力高、压力低的信号及2台www.878365.com的运转状态。
In the control cabinet, two air compressors are provided with an independent control panel. The control panel is equipped with air compressor motor startup controller, automatic air switch and other main circuit equipment, and PLC, red and green indicator "manual-switch-automatic" selection switch, button, signal lamp, power isolation transformer, relay, motor maintenance control circuit equipment, exhaust temperature meter, exhaust pressure, etc. Force gauge, oil pressure gauge, low oil pressure shutdown relay and electric heater. The automatic control installation should allow the air compressor to alternately operate as a "working" machine, and automatically start the air compressor when the pressure drops to a predetermined value. All pressure signals required for automatic control of air compressors shall be provided. Three auxiliary pressure signals should also be provided for low-pressure alarm, high-pressure alarm and high-pressure safe cut-off. The control cabinet shall at least provide the signal of high and low pressure of the gas storage tank and the operation status of two air compressors to the computer monitoring system.
控制系统应具有“现地/远方”切换,手动/自动切换、开机、停机、www.878365.com运转方式转换、电机维护、www.878365.com参数设定、各种状态和参数的显现、毛病报警显现等功用,还应具有与电站计算机监控系统公用设备LCU的衔接接口,接口应包括网络通讯接口和必要的I/O接口。供方应提供通讯规约软件,并与电站计算机监控系统承包商停止谐和,确保通讯胜利。输入/输出(I/O)接点应为电气上互相独立的空接点,输入信号主要是指远方控制命令,输出信号主要是指中压气系统设备运转状态和报警信息等。
The control system should have the functions of "local/remote" switching, manual/automatic switching, start-up, shutdown, air compressor operation mode switching, motor maintenance, air compressor parameter setting, various states and parameters appearing, fault alarm appearing, etc. It should also have the interface with LCU, which is the common equipment of power station computer monitoring system. The interface should include network communication interface and necessary I/O connection. Mouth. The supplier shall provide the communication protocol software and stop harmonizing with the contractor of the power plant computer monitoring system to ensure the success of communication. Input/output (I/O) contacts should be electrically independent empty contacts. Input signals mainly refer to remote control commands. Output signals mainly refer to the operation status of medium pressure gas system equipment and alarm information.
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