CN209198932U - A kind of cement afterheat generation realized using scattered control system is from start stop system - Google Patents
A kind of cement afterheat generation realized using scattered control system is from start stop system Download PDFInfo
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- CN209198932U CN209198932U CN201920069803.0U CN201920069803U CN209198932U CN 209198932 U CN209198932 U CN 209198932U CN 201920069803 U CN201920069803 U CN 201920069803U CN 209198932 U CN209198932 U CN 209198932U
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- 239000004568 cement Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 239000002918 waste heat Substances 0.000 claims abstract description 43
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 19
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 19
- 239000010452 phosphate Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000010736 steam turbine oil Substances 0.000 claims abstract description 13
- 239000000498 cooling water Substances 0.000 claims abstract description 12
- 230000003134 recirculating effect Effects 0.000 claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 20
- 238000001223 reverse osmosis Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 238000013480 data collection Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 15
- 238000007726 management method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 238000011161 development Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 14
- 230000001105 regulatory effect Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004801 process automation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000242583 Scyphozoa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- DJFBJKSMACBYBD-UHFFFAOYSA-N phosphane;hydrate Chemical compound O.P DJFBJKSMACBYBD-UHFFFAOYSA-N 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model belongs to cement heat recovery technical field, discloses a kind of cement afterheat generation realized using scattered control system from start stop system.The utility model includes Boiler water treatment system, recirculating cooling water system, steam turbine condensate system, deaerated feedwater system, water management on waste heat boiler drum, furnace water phosphate Adding medicine control, waste heat boiler ash-transmission system, steam turbine oil system, waste heat boiler air and gas system, the control of steam turbine heating coil, steam turbine pumped vacuum systems, steam turbine red switch system and generator connecting in parallel with system system totally 13 control system units, each control system unit or including multiple sub-control units or be independent control unit, each sub-control unit includes several control subgroups, each control subgroup realizes control target by the calling to its internal control breakpoint or control object.The utility model is technological break-through important in cement afterheat generation production of intelligent development process, realizes that cement afterheat generation production changes from traditional industrial process control technology to industrial intelligent, digitizing technique.
Description
Technical field
The utility model belongs to cement heat recovery technical field, uses decentralised control system in particular to a kind of
The cement afterheat generation realized unite from start stop system, is mainly used in the automatic starting of cement afterheat generation and is automatically stopped control
(AWHRS technology) meets the daily O&M demand of cement afterheat generation.
Background technique
In May, 2015, China have issued " made in China 2025 ", emphasize based on information physical system intelligence equipment, intelligence
The intelligence manufactures such as energy factory are leading manufacture to change, and accelerate to push technical information and manufacturing industry depth integration of new generation,
Using intelligence manufacture as main direction, by 2025, manufacturing industry major fields realized intelligence comprehensively.Currently, more than China's cement
Heat power generation is in the transition stage changed from conventional procedure automatic technology to full factory's intellectualized technology direction, cement waste heat hair
Electric intelligentized updating transition course still suffer from many technical bottlenecks and challenge, especially power plant process automatic technology problem with
And the change of new manufacturing management system is guided out in the intellectualized technology process of construction of power station.Power plant process automatic technology water
The flat raising with production process coordinated management level, it is empty that there are also broader development in cement afterheat generation intelligent construction
Between.
Summary of the invention
The purpose of this utility model is to effectively improve cement afterheat generation process automation level and production process
Man-machine coordination problem in management, realize cement afterheat generation from start and stop technology (AWHRS technology), provide it is a kind of using point
Cement afterheat generation that control system is realized is dissipated from start stop system.
Specifically, the technical solution adopted in the utility model is as follows: including Boiler water treatment system, circulating cooling water system
Water management, furnace water phosphate Adding medicine control, waste heat pot on system, steam turbine condensate system, deaerated feedwater system, waste heat boiler drum
Furnace ash-transmission system, steam turbine oil system, waste heat boiler air and gas system, the control of steam turbine heating coil, steam turbine pumped vacuum systems, steam turbine red switch system
Totally 13 control system units, each control system unit include multiple sub-control units or are only for system and generator connecting in parallel with system system
Vertical control system unit, each sub-control unit and independent control system unit include several control subgroups, respectively control subgroup
Realize that its controls target by the calling of Break point or control object to its inside, it is described from start stop system root on startup
Boiler water treatment system, recirculating cooling water system, steam turbine condensate system, deaerated feedwater system, remaining is successively pressed according to parameter preset
Water management, furnace water phosphate Adding medicine control, waste heat boiler ash-transmission system, steam turbine oil system, waste heat boiler cigarette on heat boiler drum
Wind system, the control of steam turbine heating coil, steam turbine pumped vacuum systems, steam turbine red switch system and generator connecting in parallel with system system sequence open automatically
Dynamic relevant device, until generating electricity by way of merging two or more grid systems for unit is completed, it is described suitable by starting according to parameter preset when shutting down from start stop system
The backward of sequence executes shutdown to each control system unit, and the control of each Break point and equipment is based on decentralised control system
System is completed.
Furthermore, the Boiler water treatment system includes the automatic control of first-stage reverse osmosis water, two-pass reverse osmosis system
Water automatic control, more medium filter backwash automatic control, active carbon filter backwash automatically control totally 4 sub-control units,
The recirculating cooling water system includes that circulating water pool water level automatically controls, water circulating pump pump valve group automatically controls, recirculated water is than electricity
Conductance automatically controls, exhaust hood vacuum automatic control totally 4 sub-control units, and the steam turbine condensate system includes condensate pump
Pump valve group automatically controls, water level of thermal well automatically controls, sweet-water tank water level automatically controls, drain tank water level automatically controls totally 4
Sub-control unit, the deaerated feedwater system include that feed pump pump valve group automatically controls, deaerator level automatically controls, to jellyfish
Pipe pH is automatically controlled, water supply main-piping pressure automatically controls totally 4 sub-control units, and water management includes on the waste heat boiler drum
Kiln head boiler exceeds/low cross that header outlet pressure automatically controls, kiln head boiler high voltage/low voltage steam water-level automatically controls, kiln hood
Boiler High Pressure/low-pressure drum furnace water is automatically controlled than conductivity, kiln tail boiler superheater header outlet pressure automatically controls, kiln tail
Boiler drum level automatic control, kiln tail boiler drum furnace water automatically control totally 9 sub-control units, the furnace water than conductivity
Phosphate Adding medicine control is independent control unit, and the waste heat boiler ash-transmission system includes that kiln head boiler ash-transmission system is controlled automatically
System, kiln tail boiler ash-transmission system automatically control totally 2 sub-control units, and the steam turbine oil system includes steam turbine main oil pump outlet oil
Pressure automatically controls, lubrication pressure automatically controls, turning motor automatically controls totally 3 sub-control units, the waste heat boiler cigarette wind
System includes that kiln head boiler air and gas system automatically controls, kiln tail boiler air and gas system automatically controls totally 2 sub-control units, described
The control of steam turbine heating coil is automatically controlled including kiln head boiler main steam increasing temperature and pressure, kiln head boiler filling increasing temperature and pressure automatically controls,
Kiln tail boiler main steam increasing temperature and pressure automatically controls, steam turbine main steam increasing temperature and pressure system automatically controls, steam turbine filling heating rises
Pressure system automatically controls totally 5 sub-control units, and the steam turbine pumped vacuum systems includes the automatic control of water-jet pump pump group, jetting case
Water level automatically controls, penetrates water tank temperature automatic control, surge tank main vapour pressure automatically controls, surge tank Stream temperature degree is controlled automatically
System, surge tank packing pressure automatically control, condenser vacuum automatically controls totally 7 sub-control units, the steam turbine red switch system
Automatically controlled when hanging lock automatic control, steam turbine trip protection system steam turbine red switch including exhaust hood temperature automatic control, steam turbine,
Totally 4 sub-control units, the generator connecting in parallel with system system packet are automatically controlled when digital electro-hydraulic regulating system for steam turbine steam turbine red switch
It is controlled automatically when including excitation system automatic control, synchronization device automatic control, steam turbine trip protection system generator grid-connected system
Totally 4 sub-control units are automatically controlled when system, digital electro-hydraulic regulating system for steam turbine generator connecting in parallel with system system.
Furthermore, each sub-control unit and independent control system unit include corresponding field device system and show
Field instrument system, the field device system is made of field device and its matched electric-control system or independent control system, existing
Field device system receives and executes instruction and working condition is fed back to Break point, field instrument system that Break point is sent
It unites multi-functional instrument meter apparatus that is relatively independent as made of single independent measuring cell or several instrument combines and connecting each other
Or data collection system is constituted, field instrument system acquisition Field Production Data and by data real-time update to Break point.
Furthermore, scattered control system includes data Collection & Processing System, analog control system, sequential control
System, Emergency Trip System of Steam Turbines, steam turbine digital formula electrohydraulic control system.
The beneficial effects of the utility model are: the utility model is for the mistake in above-mentioned cement afterheat generation intelligent construction
Process automation technical problem, realize the full plant of cement afterheat generation starts and stops function automatically, can effectively improve water
Man-machine coordination management level in mud cogeneration process automation level and Technical innova- tion has Unit Commitment peace
The features such as complete reliable, operation maintenance personnel is few, process control standard, man-machine coordination management, remarkable in economical benefits, while also there is pole
High social benefit.
Detailed description of the invention
Fig. 1 is the schematic diagram that the utility model respectively controls level.
Specific embodiment
Below in conjunction with drawings and examples, the utility model is described in further detail.
Present embodiment discloses a kind of applied to cement afterheat generation from start and stop technology (AWHRS technology), realizes one
Kind of the full plant of cement afterheat generation start and stop automatically from start stop system.To realize this function, from start stop system
Three layers of breakpoint are devised in control level, thus by cement afterheat generation process flow from physically peeling away composition
Relatively independent breakpoint one by one, each breakpoint are to realize some control target and exist.Wherein, the breakpoint of higher levels is
13 control system units, the breakpoint of lower-level are each sub-control unit, and the breakpoint of lowest hierarchical level is inside control subgroup
Break point or control object.These breakpoints seem " independence ", but are to connect interaction each other in control.
Specifically, the system includes Boiler water treatment system, recirculating cooling water system, steam turbine condensate system, deoxygenation
Water management in water supply system, waste heat boiler drum, furnace water phosphate Adding medicine control, waste heat boiler ash-transmission system, steam turbine oil system,
Waste heat boiler air and gas system, the control of steam turbine heating coil, steam turbine pumped vacuum systems, steam turbine red switch system and generator connecting in parallel with system system are total
13 control system units.Each control system unit includes multiple sub-control units or is independent control unit, each sub- control list
First and independent control system unit includes several control subgroups, and each subgroup that controls passes through Break point to its inside or control
The calling of object realizes that it controls target.
Each sub-control unit and independent control unit include corresponding field device system and field instrument system, described existing
Field device system is made of field device and its matched electric-control system or independent control system, and field device system is received and held
The instruction and working condition is fed back to Break point that row Break point is sent, field instrument system is by single independent measurement
Multi-functional instrument meter apparatus or data collection system relatively independent and connect each other made of element or several instrument combines are constituted,
Field instrument system acquisition Field Production Data and by data real-time update to Break point.
The control of each Break point and equipment is based on scattered control system completion, and scattered control system includes that data are adopted
Collection and processing system (DAS), analog control system (MCS), sequence control system (SCS), steam turbine trip protection system
(ETS), digital electro-hydraulic regulating system for steam turbine (DEH) etc. mainly realizes afterheat boiler system, steam turbine and synergic system, electrical
The centralized watch of system and Boiler water treatment system, decentralised control.The Integrated Development Environment of scattered control system is (including upper
Machine exploitation and slave computer exploitation) to realize cement afterheat generation AWHRS technology, it can be used for the language of secondary development
Have: text language, ladder diagram, functional block, sequence block etc..The network planning feature of scattered control system is data communication using superfluous
Reinforcement speed data bus hangs with I/O cabinet, engineer station and operator station in bus.
The cabinet planning characteristic of scattered control system are as follows:
(1) Boiler water treatment system is equipped with 1 face I/O cabinet (for main control cabinet), is equipped with 1 pair of controller and several I/O in cabinet
Module；
(2) water management, furnace water phosphate Adding medicine control, waste heat boiler ash-transmission system, waste heat boiler on waste heat boiler drum
Air and gas system, steam turbine heating coil control (waste heat boiler part) are equipped with 2 face I/O cabinets, wherein 1 face is kiln head boiler main control cabinet (cabinet
Inside it is equipped with 1 pair of controller and several I/O modules), another 1 face is kiln tail boiler remote I/O cabinet, is equipped with several I/O modules in cabinet.
(3) recirculating cooling water system, steam turbine condensate system, deaerated feedwater system, steam turbine oil system, steam turbine heating coil control
System, steam turbine pumped vacuum systems, steam turbine red switch system and generator connecting in parallel with system system are equipped with 3 face I/O cabinets, wherein 1 face is steam turbine master
Control cabinet (is equipped with 1 pair of controller and several I/O modules) in cabinet, in addition 2 faces are I/O cabinet, is equipped with several I/O modules in cabinet.
(4) I/O module includes: that analog output module, Analog input mModule, thermal resistance input module, thermocouple are defeated
Enter module, switching value output module and switching input module etc..
Preparation before AWHRS technology enabling: after the equipment routing inspection in each breakpoint of the full factory of cement afterheat generation,
Inspection result is all in just can be used AWHRS technology under " health " state.Operator needs to throw before using AWHRS technology
Enter " AWHRS " function and cuts off " safety lock "." safety lock " can evade the maloperation of operation maintenance personnel to ensure unit and person peace
Entirely, when unit completion is opened during machine task, shutdown task or unit are in maintenance, the control system unit of higher levels has been lost
It goes to act on, " safety lock " function can be enabled at this time to disable the manual operation function of relational breakpoints, but not enabled " safety lock "
The control system unit of function still can arbitrarily enable or disable these control system units with independent operating, operator,
Ensure that unit is more safe and reliable.
It after preparation is ready, is receiving after power station value is long or head of a station's instruction, can start to start or stop automatically
Operation, under the control from start stop system, unit can successively start or stop automatically corresponding control by pre-set parameter
System unit.Operator can consult the equipment operation information of unit at any time during Unit Commitment, to grasp machine in real time
Group operating status and equipment working condition.In case of emergency, operator can perform the following operation at any time: pause, leapfrog,
Continue and reset etc., it will not influence unit safety, it may be necessary to unit is switched to " manually controlling ", unit will later
It is always maintained at current operating status, until operator manually completes subsequent operation, the AWHRS technology in entire handoff procedure
It will all accomplish no-harass switch, it is ensured that unit is in a safe condition always.Meanwhile by the power plant process pipe based on AWHRS technology
The more standardized this point of reason technology, operator will seem more handy when taking over unit subsequent operation, will not produce
The raw feeling for being nervously fumbled, feeling at a loss, so that very big psychological pressure will not be born, it is final to realize man-machine coordination management.
Open machine process based on AWHRS technology: during unit opens machine, AWHRS technology can be according to parameter preset successively
By water on Boiler water treatment system, recirculating cooling water system, steam turbine condensate system, deaerated feedwater system, waste heat boiler drum,
The dosing of furnace water phosphate, waste heat boiler ash-transmission system, steam turbine oil system, waste heat boiler air and gas system, heating coil, steam turbine vacuumize and are
System, steam turbine red switch and generator connecting in parallel with system systematic order start relevant device, until complete set grid-connection power generation, when completing to open machine
After task, the information such as user " machine of opening terminates " can be prompted, " AWHRS " control authority can be discharged automatically, discharged by simultaneity factor
Control authority will be transferred to the sub-control unit of lower-level or to be controlled in independent control unit by the son of lower-level
Unit or the control target that oneself is continued to execute for independent control unit, finally make unit operate in optimum state.
Stopping process based on AWHRS technology: compressor emergency shutdown process is similar to machine process is opened, equally can be according to parameter preset
Backward executes the control system unit of each higher levels, and halt mode is divided into two kinds: one kind is general shutdown, and another kind is accident
It shuts down.Wherein, general shutdown: unit load is gradually reduced to orderly closedown range by AWHRS technology after receiving halt instruction
It is interior, then successively backward calls the control system unit of each higher levels, until all devices, valve position are in safe and reasonable
Position, it is ensured that unit safety smoothly stops；Accidental shutdown: AWHRS technology is receiving ETS(steam turbine trip protection system
System) halt instruction, DEH(digital electro-hydraulic regulating system for steam turbine) halt instruction and station manual shut-down instruction after, immediately
Trigger generator main protection movement etc., it is ensured that unit safety smoothly stops.
The sub-control unit of lower-level is specific as follows: Boiler water treatment system by first-stage reverse osmosis water automatically control,
The automatic control of two-pass reverse osmosis water, more medium filter backwash automatic control, active carbon filter backwash, which automatically control, to be constituted.
Its control logic feature are as follows: first-stage reverse osmosis water automatic starting/stopping, two-pass reverse osmosis water automatic starting/stopping, more Jie
8 control subgroups such as mass filter backwash automatic starting/stopping, active carbon filter backwash automatic starting/stopping.It is wherein each
Control subgroup successively enables its internal Break point or control object, realizes a lesser control target, such as: water processed, anti-
It washes.When enabling Boiler water treatment system, the dispatch command of higher levels successively sequentially calls the son control of each lower-level
Unit finally produces the qualified water of suitable unit water；The dispatch command of higher levels when deactivating Boiler water treatment system
Successively backward calls the sub-control unit of each lower-level, until all motor devices are stopped transport, valve position is in safety and closes
The position of reason, and exit all automatic.Stage investment automatically has:
(1) first-stage reverse osmosis water automatically controls；
(2) two-pass reverse osmosis water automatically controls；
(3) more medium filter backwash automatically controls；
(4) active carbon filter backwash automatically controls；
(5) baffle heater outlet temperature automatically controls；
(6) two-pass reverse osmosis entrance PH is automatically controlled；
(7) raw water box water level automatic control etc..
Recirculating cooling water system is automatically controlled by circulating water pool water level, water circulating pump pump valve group automatically controls, recirculated water ratio
Conductivity automatically controls, exhaust hood vacuum automatic control is constituted.Its control logic feature are as follows: circulating water pool water level automatically engages/
Excision, water circulating pump pump valve group automatic starting/stopping, recirculated water is automatically engaged/is cut off than conductivity, exhaust hood vacuum is thrown automatically
8 control subgroups such as enter/cut off.Wherein each control subgroup successively enables its internal Break point or control object, realizes
One lesser control target, such as: the automatic control of circulating water pool water level, exhaust hood vacuum automatic control.When enabling, circulation is cold
But the dispatch command of higher levels successively sequentially calls the sub-control unit of each lower-level when water system, final to realize circulation
Water level in water pool and exhaust hood vacuum are in target zone；When deactivate recirculating cooling water system when higher levels dispatch command successively
Backward calls the sub-control unit of each lower-level, until all motor devices are stopped transport, valve position is in safe and reasonable
Position, the system exit all automatic.Stage investment automatically has:
(1) water circulating pump pump valve group automatically controls；
(2) circulating water pool water level automatically controls；
(3) recirculated water is automatically controlled than conductivity；
(4) exhaust hood vacuum automatic control；
(5) condenser inlet water temperature automatic control etc..
Steam turbine condensate system is automatically controlled by condensate pump pump valve group, water level of thermal well automatically controls, sweet-water tank water level
It automatically controls, drain tank water level is automatically controlled and constituted.Its control logic feature are as follows: condensate pump pump valve group automatic starting/stopping,
Water level of thermal well automatically engages/cutting off, sweet-water tank water level automatically engages/cuts off, drain tank water level is automatically engaged/cut off etc. 8
Subgroup is controlled, wherein each control subgroup successively enables its internal Break point or control object, realizes a lesser control
Target processed, such as: water level of thermal well automatically controls, sweet-water tank water level automatically controls, drain tank water level automatically controls.When enabling vapour
The dispatch command of higher levels successively sequentially calls the sub-control unit of each lower-level when machine condensate system, final to establish
Steam turbine system water circulation；When deactivating steam turbine condensate system, successively backward calls each lower level to the dispatch command of higher levels
The sub-control unit of grade, until the stoppage in transit of all motor devices, valve position are in the position of safe and reasonable, which exits all
Automatically.Stage investment automatically has:
(1) water level of thermal well automatically controls；
(2) sweet-water tank water level automatically controls；
(3) drain tank water level automatically controls；
(4) condensate pump automatically controls；
(5) desalination water pump automatically controls；
(6) hydrophobic the automatic control of pump etc..
Deaerated feedwater system is automatically controlled by feed pump pump valve group, deaerator level automatically controls, water supply main pipe pH is automatic
Control, water supply main-piping pressure, which automatically control, to be constituted.Its control logic feature are as follows: feed pump pump valve group automatic starting/stopping, deoxygenation
8 controls such as/cutting off, water supply main pipe pH is automatically engaged/cuts off, water supply main-piping pressure is automatically engaged/cut off that device water level automatically engages
System constituent element realizes a lesser control wherein each control subgroup successively enables its internal Break point or control object
Target processed, such as: deaerator level automatically controls, water supply main pipe pH is automatically controlled, water supply main-piping pressure automatically controls.Work as enabling
The dispatch command of higher levels successively sequentially calls the sub-control unit of each lower-level when deaerated feedwater system, final to realize
Meet the demand of waste heat boiler drum water；When deactivating deaerated feedwater system, the dispatch command of higher levels successively call by backward
The sub-control unit of each lower-level, until the stoppage in transit of all motor devices, valve position are in the position of safe and reasonable, this is
System exits all automatic.Stage investment automatically has:
(1) deaerator level automatically controls；
(2) water supply main pipe pH；
(3) water supply main-piping pressure automatically controls；
(4) water supply the automatic control of pump；
(5) oxygen-eliminating device moisturizing electrically operated gate automatically controls；
(6) Water-ring vacuum the automatic control of pump；
(7) ammonifying device automatic control etc..
On waste heat boiler drum water exceeded by kiln head boiler/it is low cross header outlet pressure automatically control, kiln head boiler high pressure/
Low-pressure drum water level automatically controls, kiln head boiler high voltage/low voltage drum boiler water is automatically controlled than conductivity, kiln tail boiler superheater
Header outlet pressure automatically controls, kiln tail boiler drum level automatically controls, the control more automatic than conductivity of kiln tail boiler drum furnace water
System is constituted.Its control logic feature are as follows: kiln head boiler exceed header outlet pressure automatically engage/cut off, kiln head boiler it is low cross collect
Case outlet pressure automatically engages, and/cutting off, kiln head boiler high-pressure steam manifold stage automatically engages/cuts off, kiln head boiler low-pressure drum water
Position automatically engages/cutting off, kiln head boiler high-pressure drum boiler water is automatically engaged than conductivity/and cuts off, kiln head boiler low-pressure drum furnace
Water automatically controls investment/excision, kiln tail boiler superheater header outlet pressure automatically engage/than conductivity and cuts off, kiln tail boiler
Steam water-level, which automatically engages ,/cutting off, kiln tail boiler drum furnace water is automatically engaged than conductivity/18 control subgroups such as cuts off,
In each control subgroup successively enable its internal Break point or control object, realize a lesser control target, such as: kiln
Head Boiler High Pressure/low-pressure drum water level automatically controls, kiln tail boiler drum level automatically controls etc..Enabling waste heat boiler drum
It needs to select to enable kiln head boiler or kiln tail boiler or two boilers before upper water while enabling, the scheduling of higher levels refers to
The sub-control unit that each lower-level successively can be sequentially called according to pre-set path is enabled, it is final to realize waste heat boiler vapour
It wraps water and automatically controls target；When deactivating water on waste heat boiler drum, the dispatch command of higher levels is further according to pre-set
Successively backward calls the sub-control unit of each lower-level in path, until all motor devices are stopped transport, valve position is in peace
Complete reasonable position, the system exit all automatic.Stage investment automatically has:
(1) kiln head boiler exceed/it is low cross header outlet pressure automatically control；
(2) kiln head boiler high voltage/low voltage steam water-level automatically controls；
(3) kiln head boiler high voltage/low voltage drum platoon automatically controls；
(4) kiln tail boiler superheater header outlet pressure automatically controls；
(5) kiln tail boiler drum level automatically controls；
(6) kiln tail boiler drum platoon automatic control etc..
Furnace water phosphate dosing is independent control unit, belongs to self-loopa breakpoint.Its control logic feature are as follows: furnace water phosphorus
Hydrochlorate dosing such as automatically engages/cuts off at 2 control subgroups, it is automatic detect kiln head boiler high voltage/low voltage drum phosphate concentration with
And kiln tail boiler drum phosphate concentration, its internal Break point or control object are enabled if phosphate concentration is low, give phase
Drum dosing is answered, in the normal range, such as: kiln head boiler high voltage/low voltage drum adds the phosphate concentration in realization drum automatically
Medicine, kiln tail boiler drum Automatic Dosing etc..
(1) kiln head boiler HP steam drum phosphate dosing electrically operated gate automatically controls；
(2) kiln head boiler low-pressure drum phosphate dosing electrically operated gate automatically controls；
(3) kiln tail boiler drum phosphate dosing electrically operated gate automatically controls；
(4) phosphate dosing metering the automatic control of pump etc..
Waste heat boiler ash-transmission system is automatically controlled by kiln head boiler ash-transmission system, kiln tail boiler ash-transmission system automatically controls structure
At.Its control logic feature are as follows: kiln head boiler ash-transmission system automatic starting/stopping, kiln tail boiler ash-transmission system start automatically/stop
Only equal 4 control subgroups, wherein each control subgroup successively enables its internal Break point or control object, realization one compared with
Small control target, such as: kiln head boiler ash-transmission system automatically controls, kiln tail boiler ash-transmission system automatically controls.More than enabling
It needs to select to enable kiln head boiler or kiln tail boiler or two boilers before heat boiler ash-transmission system while enabling, higher level
The dispatch command of grade successively can sequentially call the sub-control unit of each lower-level according to pre-set path, final to realize
Waste heat boiler ash-transmission system automatically controls target；When deactivate waste heat boiler ash-transmission system when higher levels dispatch command further according to
Successively backward calls the sub-control unit of each lower-level in pre-set path, until all motor devices are stopped transport, valve
Valve position is in the position of safe and reasonable, which exits all automatic.Stage investment automatically has:
(1) kiln head boiler Star-like unloader automatically controls；
(2) kiln head boiler chain-linked conveyer automatically controls；
(3) kiln tail boiler Star-like unloader automatically controls；
(4) kiln tail boiler chain-linked conveyer automatically controls；
(5) kiln tail boiler electric motor of shaker automatic control etc..
Steam turbine oil system is automatically controlled by steam turbine main oil pump outlet oil pressure, lubrication pressure automatically controls, turning motor is automatic
Control is constituted.Its control logic feature are as follows: steam turbine main oil pump outlet oil pressure automatically engages/cutting off, lubrication pressure automatically engages/is cut
It removes, 6 control subgroups such as turning motor automatic starting/stopping, wherein successively to enable its internal control disconnected for each control subgroup
Point or control object realize that the oil pressure in oil system automatically controls target, and such as: steam turbine main oil pump outlet oil pressure automatically controls, moistens
Lubricating oil pressure automatic control etc..When enabling steam turbine oil system, the dispatch command of higher levels successively sequentially calls each lower-level
Sub-control unit, finally make the oil pressure cntrol in oil system in target zone；The higher level when deactivated steam turbine oil system
Successively backward calls the sub-control unit of each lower-level to the dispatch command of grade, until all motor devices are stopped transport, the system
It exits all automatic.Stage investment automatically has:
(1) high-voltage electric oil pump automatically controls；
(2) exchange auxiliary oil pump automatically controls；
(3) direct current auxiliary oil pump automatically controls；
(4) turning motor automatically controls；
(5) smoke exhaust automatic control etc..
Waste heat boiler air and gas system is automatically controlled by kiln head boiler air and gas system, kiln tail boiler air and gas system automatically controls structure
At.Its control logic feature are as follows: kiln head boiler inlet valve automatically engages/cutting off, kiln head boiler outlet valve automatically engages/cuts off,
Kiln head boiler bypass valve automatically engages, and/cutting off, kiln head boiler cold blast sliding valve automatically engages/cuts off, kiln tail boiler inlet valve is thrown automatically
Enter 14 control such as/cutting off, kiln tail boiler export valve automatically engages/cuts off, kiln tail boiler bypass valve is automatically engaged/cut off
Group realizes a lesser control target wherein each control subgroup successively enables its internal Break point or control object,
Such as: kiln head boiler increasing temperature and pressure rate automatically controls, kiln tail boiler heating rate of pressure rise automatically controls.Enabling waste heat boiler
It needs to select to enable kiln head boiler or kiln tail boiler or two boilers before air and gas system while enabling, the tune of higher levels
The sub-control unit of each lower-level is successively called in degree instruction according to pre-set path in order, final to realize waste heat pot
Furnace increasing temperature and pressure rate control target；When deactivating waste heat boiler air and gas system, the dispatch command of higher levels is according to presetting
Successively backward calls the sub-control unit of each lower-level in path, until all valve positions are in the position of safe and reasonable
It sets, which exits all automatic.Stage investment automatically has:
(1) kiln head boiler inlet valve automatically controls；
(2) kiln head boiler outlet valve automatically controls；
(3) kiln head boiler bypass valve automatically controls；
(4) kiln head boiler cold blast sliding valve automatically controls；
(5) kiln tail boiler inlet valve automatically controls；
(6) kiln tail boiler export valve automatically controls；
(7) kiln tail boiler bypass valve automatic control etc..
Heating coil is automatically controlled by kiln head boiler main steam increasing temperature and pressure, kiln head boiler filling increasing temperature and pressure automatically controls, kiln
Tail boiler main steam increasing temperature and pressure automatically controls, steam turbine main steam increasing temperature and pressure system automatically controls, steam turbine filling increasing temperature and pressure
System, which automatically controls, to be constituted.Its control logic feature are as follows: kiln head boiler main steam increasing temperature and pressure automatically engages/cut off, kiln hood pot
Furnace filling increasing temperature and pressure automatically engages, and/cutting off, kiln tail boiler main steam increasing temperature and pressure automatically engages/cuts off, steam turbine main steam liter
Warm booster system, which automatically engages ,/cutting off, steam turbine filling increasing temperature and pressure system automatically engages/10 control subgroups such as cuts off, wherein
Each control subgroup successively enables its internal Break point or control object, realizes a lesser control target, such as: kiln hood
Boiler main steam/filling increasing temperature and pressure automatically controls, kiln tail boiler main steam increasing temperature and pressure automatically controls, steam turbine main steam/benefit
Vapour increasing temperature and pressure system automatic control etc..It needs to select to enable kiln head boiler or kiln tail boiler or two before enabling heating coil
Platform boiler enables simultaneously, and the dispatch command of higher levels successively sequentially calls each lower-level according to pre-set path
Sub-control unit, it is final to realize Unit Steam Water system heating coil target；When deactivate heating coil when higher levels dispatch command further according to
The sub-control unit of each lower-level is called in pre-set path, until all valve positions are in the position of safe and reasonable
It sets, which exits all automatic.Stage investment automatically has:
(1) all valves along kiln head boiler main steam/drain water piping automatically control；
(2) all valves along kiln head boiler filling/drain water piping automatically control；
(3) all valves along kiln tail boiler main steam/drain water piping automatically control；
(4) all valves along steam turbine carbonated drink main steam/drain water piping automatically control；
(5) all valves automatic control etc. along steam turbine carbonated drink filling/drain water piping.
Steam turbine pumped vacuum systems automatically controls by water-jet pump pump group, penetrates that cistern water level automatically controls, to penetrate water tank temperature automatic
Control, surge tank main vapour pressure automatically control, surge tank Stream temperature degree automatically controls, surge tank packing pressure automatically controls, solidifying
Vapour device vacuum automatic control is constituted.Its control logic feature are as follows: water-jet pump pump valve group automatic starting/stopping penetrates cistern water level certainly
Dynamic investment/cut off, penetrate water tank temperature automatically engage/is cut off, surge tank main vapour pressure is automatically engaged/cut off, surge tank Stream temperature
Degree automatically engages 14 controls such as/cutting off, surge tank packing pressure automatically engages/cuts off, condenser vacuum is automatically engaged/cut off
Subgroup realizes the control mesh of single object wherein each control subgroup successively enables its internal Break point or control object
Mark or object, such as: penetrate cistern water level automatically control, surge tank main vapour pressure automatically control, surge tank Stream temperature degree automatically control,
Condenser vacuum automatic control etc..When enabling steam turbine pumped vacuum systems, the dispatch command of higher levels is successively sequentially called each
The sub-control unit of lower-level controls the vacuum values in system in target zone；When deactivated steam turbine vacuumizes
Successively backward calls the sub-control unit of each lower-level to the dispatch command of higher levels when system, until all motor devices
It stops transport, until all valve positions are in the position of safe and reasonable, which exits all automatic.Stage investment is automatic
Have:
(1) cistern water level automatic control is penetrated；
(2) water tank temperature automatic control is penetrated；
(3) surge tank main vapour pressure automatically controls；
(4) surge tank Stream temperature degree automatically controls；
(5) surge tank packing pressure automatically controls；
(6) condenser vacuum automatically controls；
(7) gland sealing valve automatic control etc..
When steam turbine red switch hangs lock automatic control, ETS protection system steam turbine red switch by exhaust hood temperature automatic control, steam turbine certainly
It automatically controls and constitutes when dynamic control, DEH regulating system steam turbine red switch.Its control logic feature are as follows: steam discharge room temperature automatically engages/
Excision, steam turbine are hung lock and automatically engaged, and/cutting off, ETS protection system automatically engages/cuts off, DEH regulating system is automatically engaged/cut off
Deng 8 control subgroups, wherein each control subgroup successively enables its internal Break point or control object, realize one by one corresponding
Control target, such as: exhaust hood temperature automatic control, ETS protection system automatically control, DEH regulating system automatically control.When
The dispatch command of higher levels successively sequentially calls the sub-control unit of each lower-level when enabling steam turbine red switch, enables DEH
Regulating system completes steam turbine red switch target, while ETS protection system in part is selectively put into according to machine unit characteristic；In deactivated vapour
When machine red switch, devise two kinds of shutdown interfaces in order to ensure unit safety smoothly stops: one kind is general shutdown interface, separately
One is accidental shutdown interfaces.Wherein, it is general shut down interface be usually planned shut-down when need the interface that calls, receive generator
Successively backward calls the sub-control unit of each lower-level again for solution column signal or dispatch command, so that unit load reduces to normal
It shuts down in range, while corresponding ETS fling-cut switch and equipment protection automatically engage, until all devices, valve position are in
The position of safe and reasonable, it is ensured that unit safety smoothly stops；Accidental shutdown interface: ETS action command, DEH hand are being received
After dynamic shutdown and the instruction of station manual shut-down, generator main protection action signal etc. is triggered immediately.Simultaneity factor is quick certainly
Inspection equipment protection investment situation and the important protection for automatically engaging off-the-line, it is ensured that unit safety smoothly stops.The stage
Investment automatically has:
(1) main inlet throttle-stop valve starting solenoid valve automatically controls；
(2) ETS head goes out to reset and automatically control；
(3) ETS movement, which resets, automatically controls；
(4) ETS fling-cut switch automatically controls；
(5) DEH rotational speed regulation automatically controls；
(6) exhaust line desuperheat water solenoid valve automatically controls；
(7) high-voltage electric oil pump automatically controls；
(8) exchange auxiliary oil pump automatically controls；
(9) direct current auxiliary oil pump automatically controls；
(10) jiggering automatic control etc..
Generator connecting in parallel with system system is automatically controlled by excitation system, synchronization device automatically controls, ETS protects system generator simultaneously
It automatically controls and constitutes when automatic control, DEH regulating system generator connecting in parallel with system system when net system.Its control logic feature are as follows: encourage
Magnetic system, which automatically engages ,/cutting off, synchronization device automatically engages/cuts off, ETS protection system is automatically engaged/cut off, DEH load control
It makes and 8 control subgroups such as automatically engages/cut off, wherein each control subgroup successively enables its internal Break point or control pair
As common to realize generator connecting in parallel with system aims of systems.When enabling generator connecting in parallel with system system, the dispatch command of higher levels is successively suitable
Sequence calls the sub-control unit of each lower-level, realizes grid-connected target by electrical system (ECS)；When deactivated generator connecting in parallel with system system
When system, calling DEH load control module first, so that unit load is reduced within the scope of orderly closedown, off-the-line generator is simultaneously later
The signal is sent into DCS system, then successively backward calls the sub-control unit of each lower-level, until all electrical equipments
Position in safe and reasonable, and exit automatic.Stage investment automatically has:
(1) excitation system automatically controls；
(2) synchronization device automatically controls；
(3) ETS fling-cut switch automatically controls；
(4) DEH Load Regulation automatic control etc..
The foregoing is merely presently filed embodiments and method, and since AWHRS technology is criss-cross, verbal description is difficult to
Reach very detailed, the protection scope of the application is not limited only to the literal scope.It is all to utilize present specification content institute
The equivalent structure or equivalent flow shift done, or directly or indirectly using the technology in other correlative technology fields, together
Reason includes within the scope of protection of this application.
Claims (4)
1. a kind of cement afterheat generation realized using scattered control system is from start stop system, which is characterized in that including boiler water
Processing system, recirculating cooling water system, steam turbine condensate system, deaerated feedwater system, water management, Lu Shui on waste heat boiler drum
Phosphate Adding medicine control, waste heat boiler ash-transmission system, steam turbine oil system, waste heat boiler air and gas system, the control of steam turbine heating coil, steam turbine
Pumped vacuum systems, steam turbine red switch system and generator connecting in parallel with system system totally 13 control system units, each control system unit packet
It includes multiple sub-control units or is independent control system unit, if each sub-control unit and independent control system unit include
Dry control subgroup, each control subgroup realize that its controls target, institute by the calling of Break point or control object to its inside
It states from start stop system and is successively condensed on startup by Boiler water treatment system, recirculating cooling water system, steam turbine according to parameter preset
Water system, deaerated feedwater system, water management on waste heat boiler drum, furnace water phosphate Adding medicine control, waste heat boiler ash-transmission system,
Steam turbine oil system, waste heat boiler air and gas system, the control of steam turbine heating coil, steam turbine pumped vacuum systems, steam turbine red switch system and power generation
The sequence of machine grid-connected system starts relevant device automatically, until generating electricity by way of merging two or more grid systems for unit is completed, it is described to be shut down from start stop system
When shutdown, each Break point and equipment executed to each control system unit by the backward of boot sequence according to parameter preset
Control be based on scattered control system completion.
2. a kind of cement afterheat generation realized using scattered control system according to claim 1 is from start stop system,
Be characterized in that, the Boiler water treatment system include first-stage reverse osmosis water automatically control, two-pass reverse osmosis water automatically control,
More medium filter backwash automatic control, active carbon filter backwash automatically control totally 4 sub-control units, the circulating cooling
Water system include circulating water pool water level automatically control, water circulating pump pump valve group automatically control, recirculated water than conductivity automatically control,
Totally 4 sub-control units, the steam turbine condensate system include that condensate pump pump valve group is controlled automatically to exhaust hood vacuum automatic control
System, water level of thermal well automatically control, sweet-water tank water level automatically controls, drain tank water level automatically controls totally 4 sub-control units, institute
State deaerated feedwater system include feed pump pump valve group automatically control, deaerator level automatically control, water supply main pipe pH automatically control,
Water supply main-piping pressure automatically controls totally 4 sub-control units, on the waste heat boiler drum water management include kiln head boiler exceed/
It is low to cross the automatic control of header outlet pressure, the automatic control of kiln head boiler high voltage/low voltage steam water-level, kiln head boiler high voltage/low voltage
Drum boiler water is automatically controlled than conductivity, kiln tail boiler superheater header outlet pressure automatically controls, kiln tail boiler drum level
Automatic control, kiln tail boiler drum furnace water automatically control totally 9 sub-control units, the furnace water phosphate dosing control than conductivity
It is made as independent independent control unit, the waste heat boiler ash-transmission system includes the automatic control of kiln head boiler ash-transmission system, kiln tail
Totally 2 sub-control units, the steam turbine oil system include that steam turbine main oil pump outlet oil pressure is automatic to the automatic control of boiler ash-transmission system
Control, lubrication pressure automatically control, turning motor automatically controls totally 3 sub-control units, the waste heat boiler air and gas system packet
Including the automatic control of kiln head boiler air and gas system, the automatic control of kiln tail boiler air and gas system, totally 2 sub-control units, the steam turbine are warm
Control system includes that kiln head boiler main steam increasing temperature and pressure automatically controls, kiln head boiler filling increasing temperature and pressure automatically controls, kiln tail pot
Furnace main steam increasing temperature and pressure automatically controls, steam turbine main steam increasing temperature and pressure system automatically controls, steam turbine filling increasing temperature and pressure system
Totally 5 sub-control units are automatically controlled, the steam turbine pumped vacuum systems includes that water-jet pump pump group automatically controls, penetrates cistern water level certainly
Dynamic control penetrates water tank temperature automatic control, the automatic control of surge tank main vapour pressure, the automatic control of surge tank Stream temperature degree, presses
Case packing pressure automatically controls, condenser vacuum automatically controls totally 7 sub-control units, and the steam turbine red switch system includes steam discharge
It is automatically controlled when room temperature automatically controls, steam turbine hangs lock automatic control, steam turbine trip protection system steam turbine red switch, steam turbine number
Totally 4 sub-control units, the generator connecting in parallel with system system include excitation system for automatic control when word electro-hydraulic control system steam turbine red switch
It is automatically controlled when system automatic control, synchronization device automatic control, steam turbine trip protection system generator grid-connected system, steam turbine
Totally 4 sub-control units are automatically controlled when digital electro-hydraulic control system generator connecting in parallel with system system.
3. a kind of cement afterheat generation realized using scattered control system according to claim 1 or 2 is from start stop system,
It is characterized in that, each sub-control unit and independent control system unit include corresponding field device system and field instrument system
System, the field device system are made of field device and its matched electric-control system or independent control system, field device system
System receives and executes instruction and working condition is fed back to Break point that Break point is sent, and field instrument system is by single
Multi-functional instrument meter apparatus or data relatively independent and connect each other made of independent measuring cell or several instrument combines are adopted
Collecting system is constituted, field instrument system acquisition Field Production Data and by data real-time update to Break point.
4. a kind of cement afterheat generation realized using scattered control system according to claim 3 is from start stop system,
It is characterized in that, scattered control system includes data Collection & Processing System, analog control system, sequence control system, steamer
Machine emergency trip system, steam turbine digital formula electrohydraulic control system.
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