DCS Mjis
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逻辑设计说明
Logic design description
项目名称：印尼加里曼丹炼铁2×14兆瓦余热回收电厂项目
Project Name: Kalimantan,
Indonesia iron 2 × 14 MW waste heat recovery power plant project
阶 段：
工程设计 版 本: 讨论版
Stage : Engineering Design Version: Forum
编制人：
编制日期: 2011
审核人： 审核日期:
批准人： 批准日期:
目录Catalog
锅炉系统Boiler system
一、闭环控制系统 1.A closed-loop control system （MCS）
1.1调节减温水调节门Adjust the door by warm water regulation
控制目标Control objectives：
通过调节减温水调节门开度，控制减温水流量，保持集汽联箱过热汽温为恒定值。主蒸汽温度控制系统以主汽温度作为被调量。定值由操作员站手动设置。
Adjusted by adjusting the gate opening by warm water,
warm water flow control by maintain steam header set to a constant value of
superheated steam temperature. Main steam temperature control system to the
main steam temperature as the amount to be transferred. Value set manually by
the operator station
To enable the boiler load changes
in water valve timely action to avoid the superheated steam temperature
fluctuations, using the instructions as a load disturbance feedforward control
loop feed-forward signal to adjust the advance by warm water flow, improve
quality control
报警与联锁Alarm
and interlock
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Bad value was adjusted parameters
were adjusted parameter large deviation, there is a bad value for valve
position feedback to control the output of the bad value, drive circuit fails,
the control loop cut to "manual" mode
1.2 给水控制Water
control
控制目标Control
objectives：
维持锅炉汽包水位为定值Maintain the boiler drum water level is constant
给水控制设计了全程调节，即单冲量水位调节回路、三冲量水位调节回路。
Water
control design of the full adjustment, that is a single impulse water-level
control loop, the three water-level control loop impulse
（1）信号测量及处理Signal
measurement and processing
汽包水位测量采用3台差压变送器(待定)，经选择器输出并经过汽包压力修正形成锅炉汽包水位信号。
Drum
water level measured by three differential pressure transmitter (pending), the
selector output and drum pressure after the formation of boiler drum level
signal correction
主汽流量信号经温度和压力补偿后相加作为总主蒸汽流量。
Main
steam flow signal by the temperature and pressure compensation the total sum as
the main steam flow
给水流量信号经温度补偿后作为总的给水流量。
Water
flow signal by the temperature compensation as the total water flow
（2）单冲量水位调节Single
impulse level adjustment
在启动和低负荷时（锅炉负荷＜30％），用单冲量控制系统调节给水管道上的调节阀，维持汽包水位为定值。
In
the start-up and low load (boiler load <30%), impulse control system with a
single regulator valve on the water supply pipe to maintain the drum water
level is constant
（3）三冲量水位调节Three
impulses regulate the water level
在负荷大于30％时，采用三冲量调节系统调节给水调节阀，维持汽包水位为定值。
The load is greater than 30%, three-impulse
conditioning system regulating water control valve to maintain the drum water
level is constant.
报警与联锁Alarm
and interlock
（1）
当水位变送器出现故障时，水位偏差大和驱动回路故障时切手动，发出报警信号；
(1)
When the water level transmitter failure, the water level large deviations and
drive circuit failure cut manually, the alarm signal;
（2）
水位偏差大或阀门、执行器驱动回路故障和给水压力低时切调节为手动并进行报警；
(2)
water level large deviations or valve, actuator drive circuit failure and low
water pressure and cut the alarm for manual adjustment;
（3）
蒸汽流量与给水流量偏差大时发报警信号
(3)
steam flow and water flow alarm signal is issued when a large deviation
1.3吹灰蒸汽压力调节阀控制 Blowing steam pressure control
valve
控制目标Control
objectives:
通过调节吹灰蒸汽压力调节阀开度，以吹灰蒸汽母管压力为被调量,维持母管蒸汽压力为定值。
Blowing
steam through the pressure regulating valve opening, blowing steam header
pressure to be adjusted for the amount of steam pressure to maintain the mother
tube is constant.
报警与联锁Alarm
and interlock
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Bad
value was adjusted parameters were adjusted parameter large deviation, there is
a bad value for valve position feedback to control the output of the bad value,
drive circuit fails, the control loop cut to "manual" mode.
1.4主蒸汽压力调节阀控制The main steam pressure control valve
控制目标Control
objectives:
以锅炉出口主蒸汽压力为被调量,通过调节主蒸汽压力调节阀开度、辅助调节向空排汽调节阀开度，维持进入主蒸汽母管的蒸汽压力为定值。
The boiler main steam pressure of export volume is
adjusted by adjusting the main steam pressure control valve opening, the
auxiliary air conditioning to exhaust valve opening, into the main steam header
to maintain the steam pressure value.
报警与联锁Alarm and interlock
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Bad
value was adjusted parameters were adjusted parameter large deviation, there is
a bad value for valve position feedback to control the output of the bad value,
drive circuit fails, the control loop cut to "manual" mode.
二、顺序控制系统 2.the sequence control system（SCS）
2.1汽包紧急放水电动门Drainage Emergency electric gate Drum
（1）当汽包水位保护开关投入，汽包水位高至I值（+50mm）时，汽包水位高I值报警；高至II值（+100mm）时，汽包水位高II值报警，汽包紧急放水门打开(2只门同时)；水位降至（+0mm）后，汽包紧急放水门关闭(2只门同时)；
(1) When the drum water level
protection switch input, I value the drum water level up to (50mm), the drum
level high I value alarm; high value to II (100mm), the drum level alarm high
values of II, the drum Emergency drain door open (two doors at the same
time); the water level down (0mm), the drum emergency drainage door closed (two
doors at the same time);
（2）当汽包水位低至I值（-50mm）时，汽包水位低I值报警；低至II值（-100mm）时，汽包水位低II值报警，处于开启状态的汽包紧急放水门关闭。
(2) When the drum water level as
low as I value (-50mm), the drum level low I value alarm; low II values
(-100mm), the drum level low II values of the police, the drum is turned on
the emergency drainage door closed.
（3）当汽包水位达III值时,发信号至KE公司(通讯),由KE公司切断进入余热锅炉的烟气。
(3) When the drum water level
reached III value, the signal to the KE Corporation (communications), the
company cut off by the KE into the flue gas waste heat boiler.
说明Explain
（1） 汽包水位检测采用经汽包压力补偿的汽包水位，由优选所得；
(1) drum by drum water level
detected by the pressure compensated drum level, obtained by the optimization;
（2） 设置汽包紧急放水门联锁投切开关；
(2) set the drum emergency
drainage door interlock switching switch;
2.2吹灰排汽电动门blowing exhaust electric door
当吹灰排汽电动门前蒸汽(凝结水)温度低时联锁打开吹灰排汽电动门，温度回复到正常值时关闭(温度值由锅炉厂提供)
When the blowing exhaust in front
of the steam electric (condensate) at low temperature exhaust blowing open
electric interlock doors closed when the temperature returns to normal
(temperature values provided by the boiler plant)
2.3其它设备Other Equipment
(1).吹灰蒸汽压力调节阀旁路电动门
(1) blowing steam pressure
control valve bypass electric door
(2).主汽压力调节阀旁路电动门
(2) main steam pressure control
valve bypass electric door
(3).给水调节阀旁路电动门
(3) water control valve bypass
electric door
(4).母管并汽电动门
(4) female pipe and steam
electric door
(5).主汽电动门
(5) main steam electric door
以上设备为手动操作. These devices for manual operation.
三、锅炉炉膛安全保护系统 3. the boiler furnace safety protection system（FSSS）
3.1 MFT及首出原因指示MFT and the first indication of
the reasons
锅炉运行时，下列任何一种危险工况出现，系统发出MFT信号，并指示出MFT首次跳闸的原因。
Boiler operation, the risk of any
of the following conditions occur, the system sends signals MFT and MFT
indicates the reason for the first trip.
(1).手动紧急跳闸MFT
(1) Manual emergency trip MFT
(2).汽包水位低Ⅲ值（三取二），延时4S触发MFT信号；
(2). 3 drum level low value (three
takes two), MFT delay 4S trigger signal;
(3).汽包水位高Ⅲ值（三取二），延时4S触发MFT信号；
(3). 3 drum level high values (three
takes two), MFT delay 4S trigger signal;
为方便操作人员，CRT屏幕上提供锅炉跳闸首出报警原因指示。由FSSS检测出的MFT首出原因在跳闸后立即在屏幕上显示。
For the convenience of the
operator, CRT screen on the first trip out of the boiler to provide the reasons
for alarm indication. MFT FSSS detected by the first reason for the trip out on
the screen immediately.
3.2 MFT动作对象MFT action object
发信号至KE公司 Signal to
the KE company
汽机系统Turbine system
一、闭环控制系统 1。Closed-loop control system（MCS）
1.1旁路减温减压器温度调节阀(2台汽机公用) bypass temperature adjustment for temperature and pressure reduction valves (2 steam machine public)
控制目标Control objectives：
旁路减温减压器调节阀以调节减温减压装置喷水调门，维持减温减压器出口温度为定值。
Bypass temperature and pressure
reducing control valve to regulate the temperature and pressure reduction
device for water-jet tone, maintaining the temperature and pressure reducer
outlet temperature setting.
报警与联锁Alarm
and interlock
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Called bad values of parameters, called argument
deviation big, bad bad values, valve position feedback control output value,
driving circuit failures, adjust the loop cut to "manual" way.
1.2旁路减温减压器压力调节阀(2台汽机公用) Bypass temperature and pressure reducing pressure regulating valve (2 steam machine public)
控制目标Control
objectives：
旁路减温减压器压力调节阀以减温减压器进口压力调节阀前蒸汽压力作被调量，通过控制减温减压器压力调节阀开度，来维持主蒸汽母管压力恒定。
Bypass
for pressure regulating valve to reduce the temperature and pressure reduction
for temperature and pressure steam pressure was transferred before the inlet
pressure control valve by controlling the temperature and pressure reduction of
pressure regulating valve for opening, to keep the main steam pipe pressure
constant
报警与联锁Alarm
and interlock
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Called bad values of parameters, called argument
deviation big, bad bad values, valve position feedback control output value,
driving circuit failures, adjust the loop cut to "manual" way.
二、顺序控制系统 2。the sequence control system（SCS）
2.1 电动盘车装置Electric barring device
允许启条件：A*B*C*D Allow conditions of Kai: A*B*C*D
A. 润滑油压力正常
A. oil pressure normal
B. 盘车齿合开关
B. barring gear-switches
C. 顶轴油压建立
C. shaft-jacking oil establishment
D.汽机转速未达到脱开转速
D. turbine
speed did not reach the opening speed
联锁停条件：(A+B+C+D)*E
interlocking
stopping conditions: (a b c d) *E
A. 润滑油总管压力低
A. low pressure of oil duct
B. 盘车齿合开关
B. barring gear-switches
C. 顶轴油压未建立
C. shaft-jacking oil has not been
established
D. 汽机转速已达到脱开转速
D. turbine speed has reached the
opening speed
E. 电动盘车装置联锁投入
E. power turning gear unit
interlock input
2.2汽机油系统steam engine oil system
高压电动油泵联锁启条件:A*B Conditions of high pressure electric oil pump
interlock Kai: A*B
A. 主油泵出口压力开关信号(主油泵出口压力低)
A. main oil pump outlet pressure
switch signals (main oil pump outlet pressure is low)
B. 高压电动油泵联锁投入
B. pressure electric oil pump
interlock input
交流辅助油泵联锁启条件:A*B Condition of AC auxiliary oil pump interlock Kai:
A*B
A. 润滑油压力开关信号(润滑油压低)
A. oil pressure switch signals
(lubricating oil down)
B. 交流辅助油泵联锁投入
B. AC auxiliary oil pump
interlock input
直流油泵联锁启条件:A*B DC oil pump interlock Kai conditions: A*B
A. 润滑油压力开关信号(润滑油压低)
A. oil pressure switch signals
(lubricating oil down)
B. 直流油泵联锁投入
B. DC oil pump interlock input
2.3主射水泵main injection pump
联锁启条件：（A+B+C）*D Interlocking Kai conditions: (a b c) *D
A. 运行泵停止
A. running pump stops
B. 射水泵出口母管压力低并且有泵运行
B. low shot pump outlet manifold
pressure and the pump running
C.凝结器真空低(AI)
C. low condenser vacuum (AI)
C. 射水泵备用联锁投入
D. injection pump alternate
interlock input
2.4旁路射水泵bypass Jet pump
备用联锁启条件：（A+B+C）*D Alternate interlocks Kai
conditions: (a b c) *D
A. 运行泵停止
A. running pump stops
B. 旁路射水泵出口母管压力低并且有泵运行
B. low bypass Jet pump outlet
manifold pressure and the pump running
C. 旁路凝结器真空低(AI)
C. bypass condenser for low
vacuum (AI)
D.旁路射水泵备用联锁投入
D. bypass Jet pump alternate
interlock input
2.5凝结水泵(旁路凝结水泵同主凝结水泵,共用出口母管管道) Condensate pumps (bypass condensate pumps with primary condensate pump, common export pipeline)
允许启动条件：A*B Allow launch conditions: A*B
A. 凝汽器水位不低
A. condenser water levels not low
B. 无凝结水泵故障信号
B. no condensate pump fault
signal
备用联锁启动条件：（A+B）*C Alternate interlocks launch
conditions: (a b) *C
A. 运行泵跳闸
A. running pumps trip
B. 凝结水泵出口总管压力低且有运行泵
B. condensate pump outlet duct
pressure low and run pumps
C. 凝结水泵备用联锁投入
C. condensate pump alternate
interlock input
2.6凝汽器再循环电动门recycling electric condenser
手动操作,带中停. Manual operation, with stops in
2.7轴封风机（一用一备）shaft sealing fan (a)
联锁启动条件：A*B Interlocking launch conditions: A*B
A. 运行风机跳闸
A. running fan trip
B. 轴封风机备用联锁投入
B. blower shaft seal alternate
interlock input
2.8均压箱进、排汽各电动门Pressure Chamber inlet and exhaust all electrically operated gate
手动操作Manual
operation
2.9 旁路减温减压器进口电动门. Bypass to reduce imports of temperature and pressure electric gate
联锁启动条件：A*B
Interlocking
launch conditions: A*B
A. 进口压力高压力开关
A. inlet pressure high pressure
switch
B. 进口电动门联锁投入
B. imported electric door
interlock input
联锁停止条件：A*B
Interlocking stopping condition:
A*B
A. 进口压力正常压力开关
A. inlet pressure normal pressure
switch
B.进口电动门联锁投入
B. imported electric door
interlock input
2.10旁路减温减压器出口电动门. Bypass temperature and pressure reducer outlet electric gate
联锁启动条件：A*B Interlocking launch conditions: A*B
A. 旁路减温减压器进口电动门进口压力高压力开关
A. bypass to reduce imports of
temperature and pressure electric gate inlet pressure high pressure switch
B. 出口电动门联锁投入
B. export electric door interlock
input
联锁停止条件：A*B
Interlocking stopping condition: A*B
A. 旁路减温减压器进口电动门进口压力正常压力开关
A. bypass to reduce imports of
temperature and pressure electric gate inlet pressure normal pressure switch
B. 出口电动门联锁投入
B. export electric door interlock
input
三、汽机跳闸保护首出显示 3.
the turbine trip protection out display
ETS发出汽机跳闸信号,下列条件多个出现时,画面上将显示出第一个引起ETS动作的条件,并在LCD上发出报警.
ETS turbine trip signal was issued, the following
conditions when more than one appears, ETS operation caused by screen appears
on the first condition, and issued an alert on the LCD.
（1） 润滑油压低停机；
(1) lubricating oil lower
downtime;
（2） 冷凝器真空低停机；
(2) low downtime vacuum of
condenser, and
（3） 汽机超速停机；
(3) turbine overspeed shutdown;
（4） 轴向位移大停机；
(4) axial displacement downtime;
（5） 胀差大停机；
(5) the differential expansion of
downtime;
（6） 轴瓦振动大停机 ；
(6) bearing vibration of large
outages;
（7） 发电机主保护停机
(7) generator main protection
stop
（8） 电调装置停机；
(8) electronic speed control
device downtime;
（9） 推力轴承回油温度高停机；
(9) high oil temperature of
thrust bearing down;
（10） 径向轴承回油温度高停机 ；
(10) journal bearing with high
oil temperature is down;
（11） 推力瓦块温度高停机；
(11) high temperature of thrust
pad down;
（12） 径向瓦块温度高停机；
(12) high temperature of radial tile
downtime;
（13） 手动停机
(13) manually shutdown
（14） 总停机；
(14) total downtime;
为方便操作人员，LCD上提供汽机跳闸首出报警原因指示。ETS首出原因在跳闸后立即在屏幕上显示。
For the convenience of operator,
LCD provides turbine tripping out on the cause of the alert indicates. ETS
causes immediately after the trip first appears on the screen.
公用系统Public system
一、闭环控制系统 1. Closed-loop control system（MCS）
1.1除氧器压力调节 Deaerator pressure regulation
控制目标Control
objectives:
除氧器压力调节以除氧器内蒸汽压力作被调量，通过控制除氧器压力调门开度，改变加热蒸汽量作调节手段，来维持除氧器压力恒定。
Pressure control of deaerator in Deaerators in the
steam pressure was transferred, by controlling the pressure of deaerator tone
opening, changing the heating steam volume for regulation means, to maintain
constant pressure of deaerator.
除氧器一般为并列运行，可适当增加调节“死区”，避免相互之间的影响。
Deaerator typically run side-by-side, can be
adjusted appropriately increased "dead zone", voiding the impact of
each other.
报警与联锁Alarm and interlock :
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Called bad values of parameters, called argument
deviation big, bad bad values, valve position feedback control output value,
driving circuit failures, adjust the loop cut to "manual" way.
1.2除氧器水位调节the deaerator water level adjustment
控制目标Control objectives：
除氧器水位调节以除氧器水位作被调量，通过控制除氧器水位调节阀开度，以维持水位在正常值。
Deaerator water level control of deaerator water
level was transferred, through the control of deaerator water level control
valve opening to maintain water levels in the normal value.
除氧器一般为并列运行，可适当增加调节“死区”，避免相互之间的影响。
Deaerator
typically run side-by-side, can be adjusted appropriately increased "dead
zone", voiding the impact of each other.
报警与联锁Alarm and interlock :
被调参数坏值、被调参数偏差大、阀位反馈出现坏值、控制输出坏值、驱动回路出现故障时，调节回路切至“手动”方式。
Called
bad values of parameters, called argument deviation big, bad bad values, valve
position feedback control output value, driving circuit failures, adjust the
loop cut to "manual" way.
二、顺序控制系统 2.The sequence control system（SCS）
2.1.冷却塔风机the cooling tower fan（1#，2#，3#）
允许启条件:A
Allows
restart condition: a
A. 无冷却塔风机故障信号
A.-free cooling tower fan fault
signal
联锁停条件:A*B
Interlocking
stopping condition: A*B
A. 冷却塔风机运行电机跳闸
A. cooling tower fan running
motor trip
B. 冷却塔保护联锁投入
C.
cooling towers to protect interlock input
2.2疏水泵Drain pump
联锁启条件(A+B)*C Interlocking conditions of Kai (a b) *C
A. 疏水箱水位高
A. drain water tank water level
high
B. 运行泵停止
B. running pump stops
C. 本泵联锁投入
C. This pump interlock input
联锁停条件A*B
Interlocking
stopping conditions A*B
A. 疏水箱水位低
A. drain water tank water level
low
B.本泵联锁投入
B. This pump interlock input
2.3循环水泵才才irculation pumps（1#，2#，3#,4#,三用一备Three use）
允许启条件:A*B
Conditions
to allow A * B
A. 无泵故障信号
A. No pump failure signal
B. 循环水泵出口电动门关闭
B. electric doors closed circulating pump outlet
联锁启条件:(A+B)*C interlock conditions: (AB) * C
A. 任一运行泵停止
A. run the pump to stop any
B. 循环水供水母管压力低并且有泵运行
B. recycled water supply main
pipe and a pump pressure is low
C. 本泵联锁投入
C. The pump interlock input
联锁停条件:A*B
Interlock
stop conditions: A * B
A. 本泵运行60S后且出口门未开到位
A. The pump 60S and exit doors
are not open after the place
B. 本泵联锁投入
B. The pump interlock input
2.4循环水泵进口门才Circulating pump entry door
手动操作. Manual operation
2.5循环水泵出口门才Circulating pump exit doors
联锁开条件:A*B
Interlock
open conditions: A * B
A. 相应循环水泵启动
A. The corresponding circulation
pump start
B. 循环水泵出口门联锁投入
B. circulating pump exit door interlock input
联锁关条件:A*B
Interlock
off conditions: A * B
A. 相应循环水泵停止
A. The corresponding circulating
pump stops
B. 循环水泵出口门联锁投入
B. circulating pump exit door
interlock input
2.6给水泵系统（三用一备）To the pump system (three with a prepared)
允许启条件：A*B*C Conditions to allow Kai: A * B * C
A. 除氧器水位正常
A. deaerator water level to
normal
B. 给水泵出口电动门关闭
B. electric doors closed to the
pump outlet
C. 无给水泵故障信号
C. No fault signal to the pump
联锁启条件：（A+B）*C interlock conditions: (AB) * C
A. 运行泵停止
A. run the pump to stop
B. 高压给水出口母管压力低且有运行泵
B. High pressure water tube low-exporting
home and have to run the pump
C. 泵联锁投入
C. Pump interlock input
联锁停条件：（A+B）*C Interlock stop conditions: (AB) * C
A. 给水泵启动60S后且再循环门在关位置，对应出口门未打开。
A. After the feed pump start 60S
and recycling in the closed door position, corresponding to the exit doors did
not open.
B. 泵联锁投入
B. pump interlock input
2.7给水泵出口电动门：To the pump outlet electric doors:
给泵与相应出口门联锁开：A*B Corresponding to the pump and open the exit door
interlock: A * B
A. 相应给泵启动
A. corresponding to the pump
start
B.泵门联锁投入
B. Pump
door interlock input
给泵与相应出口门联锁关：A*B
Exit
doors to the pump interlock with the corresponding relations: A * B
A. 给泵停止
A. Stop the pump
B. 泵门联锁投入
B. Pump door interlock input
2.8给水泵再循环门(带中停)：Feed pump recirculation door (with the stop):
给泵与相应再循门联锁关：A*B
interlock
closed: A * B
A. 相应给水泵运行，延时30s关阀
A. corresponding to the pump
operation, the delay 30s off valve
B.泵门连锁投入
B. pump
into the door chain
2.9工业水泵：Industrial pumps:
联锁启条件：（A+B）*C
interlock
conditions: (AB) * C
A. 运行泵跳闸
A. Run the pump trip
B.工业水母管压力低并且有泵运行
B.
Industrial water pipe and a pump pressure is low
C.工业水泵联锁投入
C.
Industrial pump interlock input
2.10消防水泵：Fire Pump:
联锁启条件：A*B interlock conditions: A * B
A. 消防水压力低(DI)
A. Fire Water pressure is low
(DI)
B.消防水泵联锁投入
B. fire
pump interlock input
联锁停条件：A*B Interlock stop conditions: A * B
A. 消防水压力高(DI)
A. High-pressure fire water (DI)
B.消防水泵联锁投入
B. fire
pump interlock input
2.11 柴油消防泵Diesel fire pump
手动操作Manual operation
2.13.低位水泵Low pump
联锁启条件：A*B interlock conditions: A * B
A. 低位水箱水位高(DI)
A. Low water tank water level is
high (DI)
B.低位水泵联锁投入
B. Low
water pump interlock input
联锁停条件：A*B Interlock stop conditions: A * B
A. 低位水箱水正常
A. the normal low water tank
B.低位水泵联锁投入
B. Low
water pump interlock input
2.14 补给水进水电动门Water supplies water electric door
联锁启条件：A*B interlock conditions: A * B
A. 吸水池水位低
A. Low level suction tank
B.补给水进水电动门联锁投入
B. Water
supply water into electric door interlock
联锁停条件：A*B Interlock stop conditions: A * B
A. 吸水池水位高
A. High level suction tank
B.补给水进水电动门联锁投入
B. Water supply water into
electric door interlock
Mohon penjelasan dan pencerahanya untuk bahan belajar dan evaluasi bagi pemula.. !!!
ReplyDelete1.
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Bagai mana cara untuk mengatasi waterhammer, serta pada porsi berapa isi air dalam upper drum..?
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Semoga dapat menjadikan kita tambah wawasan dan berguna buat sesama...!!
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