CN208793102U - A kind of distributed busbar protection multipotency stream measuring point system - Google Patents
A kind of distributed busbar protection multipotency stream measuring point system Download PDFInfo
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Abstract
A kind of distributed busbar protection multipotency stream measuring point system, supercharger and gas turbine group, extraction and condensing unit waste heat boiler, extraction condensing type Turbo-generator Set has collectively constituted extraction and condensing unit, supercharger and gas turbine group, back pressure unit waste heat boiler, back pressure type steam turbine generating set has collectively constituted back pressure unit, lithium bromide chiller, transformer, gas fired-boiler, electrical chillers have collectively constituted the auxiliary system of two units, extraction and condensing unit and back pressure unit pass through hot water confession/return water main pipe, heating steam header, cold water confession/return water main pipe, power bus-bar externally supplies various forms of energy streams；Temperature, pressure, flow and calorific value measuring point is arranged in natural gas transportation main pipe；Temperature, pressure-measuring-point is arranged in heating steam header；Voltage measuring point is arranged in power bus-bar；The point layouts structures such as temperature, pressure, humidity measuring point are arranged in energy source station environment.The utility model proposes the measuring point system for meeting the monitoring of multipotency stream for " one takes out a back " unit.
Description
Technical field
The utility model relates to a kind of distributed busbar protection multipotency stream measuring point systems.
Background technique
1, scattered control system (DCS)
DCS has become mesh based on microprocessor, using the design principle that control function dispersion, display operation are concentrated
The control system that preceding power plant's mainstream uses.Active station is used to show and record the process data from each control unit, be people with
The operation interface of production process information interaction.Typical active station includes host system, display equipment, keyboard input devices, letter
Breath storage equipment and print out equipment etc., mainly realize powerful display function, warning function, operating function etc..
Control system of the DCS system as current power plant's mainstream, need to instrument control measuring point all in power plant process system,
The real time data for executing equipment is monitored in real time.
2, multipotency stream energy management system (IEMS)
IEMS system will be in conjunction with energy Internet technology, and the difference with DCS system is, from control object, DCS
Towards the inside of power plant, multipotency streaming system is then towards entire industrial area, including power plant, electricity/ther mal network, customer charge (electricity, heat)
And energy storage.IEMS passes through the crucial skill such as the analysis of multipotency Coupling method, multipotency monitoring, Multi-function safety assessment, multipotency Optimized Operation
Art reaches reasonable distribution using various energy resources, improves power plants generating electricity utilization rate, promotes the mesh that garden clean energy resource supplies ratio
, it realizes between power plant and the coordination optimization between power plant and load, energy storage, finally realizes that power plant, user etc. more and participate in main bodys
Benefit two-win.
The state of the art of multipotency stream energy management IEMS technology:
Multipotency stream energy managing and control system needs the support platform of a set of adaption scheduling system requirements, and can satisfy electricity, heat,
The implementation of cold, natural gas multipotency streaming system complex energy control demand and demand side management.In cross-platform support platform base
The core function realized on plinth includes: multipotency stream SCADA subsystem, Real-time modeling set and state aware subsystem, multipotency stream safety
Analysis and the flow-optimized scheduling controlling subsystem of early warning subsystem, multipotency.Wherein, multipotency stream SCADA is the most base of multipotency streaming system
This application is mainly used for realizing complete, high performance, stable state real-time data acquisition and monitoring function, is subsequent Real-time modeling set
With the basis of state aware subsystem, the safety analysis of multipotency stream and the flow-optimized scheduling controlling subsystem of early warning subsystem, multipotency.
Therefore, multipotency stream SCADA system is closely related with the instrument control measuring point design in energy source station, needs to acquire every and contains
Cold/hot water, steam, the design parameter of natural gas line and its instantaneous flow in actual moving process, pressure, temperature it is real-time
Parameter, for modeling and state estimation；Need to acquire the characteristic curve of each power-equipment in energy source station, real-time status feedback and
Import/export real-time parameter, for calculating device efficiency and power consumption；Need to acquire the real-time of each power valve in energy source station
State feedback, for obtaining the topological structure of system.
Traditional energy service refers to by providing energy efficiency audit, Energy-saving Projects design, raw material and equipment to client
The comprehensive sex service of the one continuous line such as buying, construction, training, operation and maintenance, amount of energy saving monitoring, and by sharing the project implementation with client
The energy-saving benefit generated afterwards gains and develops at a progressive speed.But with the continuous development of today's society energy services, with customer demand
For the developing direction of the novel integrated energy services necessarily future source of energy service of guiding.New energy service refers to user side
Demand is guiding, the demand according to client to using energy source (electric power, industrial steam, heating, refrigeration etc.), by means of scientific and reasonable
Distribution, conversion and utilization technology, provide the total energy solution of the multiple-objection optimizations such as economy, energy conservation, environment, ecology for user
The certainly service of scheme.
Using natural gas as the combustion engine distributed busbar protection of fuel, it is developed rapidly at present in China, to outer energy
The characteristics of supply, shows the various energy resources form such as hot and cold, electric, vapour, how while meeting client's supply requirement, improves energy
The cost-effectiveness of source station is the hot topic currently paid close attention to realize the cascade utilization of the energy.With China's multipotency in recent years
Stream energy management IEMS technology is constantly progressive, this provides condition to develop more intelligentized comprehensive energy management service.
Although IEMS theory and technology is mature enough, there is presently no power plant to carry out in landing implementation, especially IEMS functional application
Basis --- the practical measuring point of data acquisition demand and power plant of multipotency stream, which designs, differs larger.Therefore, the utility model needs
The technical issues of solution is, in conjunction with the actual conditions of power plant design, proposes a kind of to meet multipotency stream energy management system IEMS need
The energy source station measuring point design scheme asked.
The prior art mainly has the disadvantages that
1, the measuring point data in DCS system is not able to satisfy the data acquisition request of multipotency stream IEMS system SCADA.It is existing
DCS system measuring point collected only meets power plant's actual production operation needs, is not able to satisfy the monitoring requirements of multipotency streaming system.It is more
The measuring point demand that energy streaming system proposes does not account for power plant's practical operation situation, and measuring point that is unreasonable and repeating setting will lead to
Power Plant operational efficiency reduces, or even brings some security risks.
2, existing power plant still relies upon the operation control that DCS system realizes unit, and traffic control can only still be needed by load
Plan is asked, production task is assigned by power plant's value length.Can not achieve based on can side load prediction and energize side apparatus performance
State is scheduled management automatically, operation profit benefit does not reach maximization, the method for operation cannot be intelligent.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide one kind and are satisfied with distributed busbar protection multipotency
The point layout structure of streaming system SCADA functional requirement considers feasibility, reasonability and the safety of measuring point design.
The purpose of this utility model is achieved through the following technical solutions: a kind of distributed busbar protection multipotency stream measuring point
System, A, B1, C1 in Fig. 1 have collectively constituted extraction and condensing unit, and A, B2, C2 in Fig. 1 have collectively constituted back pressure unit, in Fig. 1
D, E, F, G collectively constituted the auxiliary systems of two units, extraction and condensing unit and back pressure unit by hot water confession/return water main pipe,
Heating steam header, cold water confession/return water main pipe, power bus-bar externally supply various forms of energy streams；
Natural gas transportation main pipe is provided with temperature, pressure, flow and calorific value measuring point；
Heating steam header is provided with temperature, pressure-measuring-point；
Power bus-bar is provided with voltage measuring point；
Energy source station environment is provided with temperature, pressure, humidity measuring point；
The aperture measuring point of the valve state measuring point of all turn-off type valves and all adjustment type valves in energy source station is set.
It is preferred that the utility model further includes measuring point system inside supercharger and gas turbine group；
Gas turbine has 2 can flow into mouth and 2 energy outfluxes, and import 1 is that gas pressure is promoted to completely by supercharger
After sufficient gas turbine requires, through pressure flow control device, natural gas is sent into combustion chamber, import 2 is compressor sucking atmosphere
For air to meet the certain air/fuel ratio of gas turbine, outlet 1 is the flue gas of gas turbine tail discharge, is sent directly into waste heat pot
Furnace (B1/B2), outlet 2 is that fuel engine power generation machine send power generation to transformer (E)；
Natural gas boosting electric power measuring point is set；
Natural gas boosting machine outlet temperature, pressure, flow measuring point are set；
Compressor inlet air themperature, pressure, flow measuring point, outlet air temperature, pressure-measuring-point are set；
Gas turbine exit gas temperature, pressure-measuring-point are set；
Gas turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.
It is preferred that the utility model further includes measuring point system inside extraction and condensing unit waste heat boiler；
Extraction and condensing unit waste heat boiler has 4 can flow into mouth, 4 energy outfluxes；Import 1 is by the tail portion gas turbine group (A) cigarette
Gas comes, and for the heat exchanger heat exchange at different levels such as waste heat boiler mesohigh superheater, high steam device, low-pressure superheater, import 2 is by taking out
The condensed water of condensing turbine (C1) condenser comes, and outlet 1 is that the main vapour of high pressure that high-pressure superheater generates is sent to pumping condensing turbine
(C1) high pressure cylinder does work, and outlet 2 is that the main vapour of low pressure that low-pressure superheater generates is sent to pumping condensing turbine (C1) low pressure (LP) cylinder acting.This
Outside, 1 grade of tail flue gas heat exchanger is exchanged with lithium bromide chiller (D) progress hot water in figure, 2 grades of tail flue gas heat exchangers and hot water
For/return water main pipe progress hot water exchange；
High-pressure superheater, high pressure evaporator, low-pressure superheater, high-pressure economizer, low pressure evaporator, low pressure are set and save coal
Device, 1 grade of tail flue gas heat exchanger, 2 grades of tail flue gas heat exchanger exit flue-gas temperature measuring points；Measuring point purposes: it is used for extraction and condensing unit
Waste heat boiler modeling and state estimation.
Waste heat boiler back-end ductwork pressure, flow measuring point are set；Measuring point purposes: for extraction and condensing unit waste heat boiler modeling and
State estimation.
High-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, HP steam drum temperature, pressure are set
Power, liquid level measuring point, are arranged low-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, and setting high pressure saves
Coal device inlet steam temperature, pressure, outlet steam temperature, pressure, flow measuring point, setting high pressure water pump front and back pressure-measuring-point,
Low-pressure drum temperature, pressure, liquid level measuring point are set, low-pressure coal saver inlet temperature, pressure, flow, outlet temperature measuring point are set,
Condensed water recirculation pump outlet pressure measuring point is set, 1 grade of tail flue gas heat exchanger import hot water temperature, outlet hot water's temperature are set
2 grades of tail flue gas heat exchanger import hot water temperatures, outlet hot water's temperature, pressure, flow survey is arranged in degree, pressure, flow measuring point
Point.Measuring point purposes: for the modeling of extraction and condensing unit waste heat boiler and state estimation.
It is preferred that the utility model further includes measuring point system inside extraction condensing type Turbo-generator Set；
Extraction condensing type Turbo-generator Set has 2 can flow into mouth, 4 energy outfluxes；Import 1 is by extraction and condensing unit waste heat boiler
(B1) the main vapour of high pressure comes, and is then divided into three tunnels, enters steam turbine high-pressure cylinder all the way and does work, is all the way high pressure turbine by, another way warp
It is sent after temperature-decreased pressure reducer to heating steam header (outlet 1)；Import 2 by the main vapour of extraction and condensing unit waste heat boiler (B1) low pressure Lai, and
After be divided into two-way, be all the way low voltage bypass, another way is sent after merging with high pressure cylinder steam extraction to heating steam header (outlet 2)；It takes out
Condensed water is returned to extraction and condensing unit waste heat boiler (B1), extraction condensing type steamer by condenser by low pressure (LP) cylinder after solidifying formula steam turbine acting
Generator send power generation to transformer (E)；
Measuring point setting and the measuring point purposes for meeting multipotency streaming system are as follows:
High pressure main stop valve, low pressure stop valve valve state measuring point are set, and setting septum valve, low pressure modulating valve valve are opened
Spend measuring point.Measuring point purposes: for obtaining topological structure and calculation of pressure.
Temperature, pressure-measuring-point before setting high pressure main stop valve, are arranged temperature, temperature-decreased pressure reducer before high pressure turbine by temperature-decreased pressure reducer
Temperature, pressure-measuring-point after the main vapour of high pressure to heating steam header temperature-decreased pressure reducer is arranged in temperature, pressure-measuring-point afterwards, and low pressure is arranged
Temperature, pressure-measuring-point after temperature, temperature-decreased pressure reducer is arranged before low voltage bypass temperature-decreased pressure reducer in temperature, pressure-measuring-point after stop valve,
Each temperature-decreased pressure reducer attemperation water flow measuring point is set；Measuring point purposes: it is used for sucking condensing turbine security evaluation.
(i.e. steam turbine steam extraction) temperature, pressure-measuring-point after setting low pressure modulating valve, setting steam turbine steam extraction are mixed with the main vapour of low pressure
Temperature afterwards, pressure, flow measuring point；Measuring point purposes: calculating for steam turbine and steam turbine state estimation.
Condenser vacuum, condensed water refill flow, condensate pump front and back pressure-measuring-point, the outlet of setting condensate pump are set
Main pipe temperature, pressure, flow measuring point.Measuring point purposes: modeling and state estimation for condensate system.
Steam turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.Measuring point purposes: wattful power
Rate is used for extraction and condensing unit efficiency calculation, and voltage, electric current, reactive power are used for Security Checking and status assessment.
It is preferred that the utility model further includes measuring point system inside back pressure unit waste heat boiler；
Back pressure unit waste heat boiler has 3 can flow into mouth, 5 energy outfluxes；Import 1 is by the tail portion gas turbine group (A) cigarette
Gas comes, for the heat exchanger heat exchange at different levels such as waste heat boiler mesohigh superheater, high steam device, low-pressure superheater；Outlet 1 is high
The main vapour of high pressure that pressure superheater generates, which is sent to back pressure turbine (C2) cylinder, to do work, and outlet 2 is the low of low-pressure superheater generation
Main vapour is pressed to send to heating steam header, outlet 3 is that low pressure feed water pump discharge branch to back pressure turbine (C2) is used as desuperheating water；
In addition, 1 grade of tail flue gas heat exchanger is exchanged with lithium bromide chiller (D) progress hot water in figure, 2 grades of tail flue gas heat exchangers and hot water
For/return water main pipe progress hot water exchange；
High-pressure superheater, high pressure evaporator, low-pressure superheater, high-pressure economizer, low pressure evaporator, low pressure are set and save coal
Device, 1 grade of tail flue gas heat exchanger, 2 grades of tail flue gas heat exchanger exit flue-gas temperature measuring points.Measuring point purposes: it is used for back pressure unit
Waste heat boiler modeling and state estimation.
Waste heat boiler back-end ductwork pressure, flow measuring point are set.Measuring point purposes: for back pressure unit waste heat boiler modeling and
State estimation.
High-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point are set, HP steam drum temperature is set
Degree, pressure, liquid level measuring point, are arranged low-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, and setting is high
Economizer inlet steam temperature, pressure, outlet steam temperature, pressure, flow measuring point are pressed, pressure is surveyed before and after setting high pressure water pump
Low-pressure drum temperature, pressure, liquid level measuring point is arranged in point, and low-pressure coal saver inlet temperature, pressure, outlet temperature measuring point is arranged, if
Pressure feed pump inlet and outlet pressure, entrance main pipe flow measuring point are set low, 1 grade of tail flue gas heat exchanger import hot water temperature is set, is gone out
Mouthful hot water temperature, pressure, flow measuring point, be arranged 2 grades of tail flue gas heat exchanger import hot water temperatures, outlet hot water's temperature, pressure,
Flow measuring point.Measuring point purposes: for the modeling of back pressure unit waste heat boiler and state estimation.
It is preferred that the utility model further includes measuring point system inside back pressure type steam turbine generating set；
Extraction condensing type Turbo-generator Set has 2 can flow into mouth, 3 energy outfluxes；Import 1 is by back pressure unit waste heat boiler
(B2) the main vapour of high pressure comes, and is then divided into two-way, enters steam turbine all the way and does work, another way is sent after temperature-decreased pressure reducer to confession
Hot steam header (outlet 1)；Import 2 is subtracted by back pressure unit waste heat boiler (B2) low pressure feed water pump discharge branch for desuperheat
Depressor desuperheating water；Outlet 2 is that back pressure turbine send the steam after acting to heating steam header；In addition, back pressure type steam turbine
Generator send power generation to transformer (E)；
Stop valve valve state, septum valve valve opening measuring point are set.Measuring point purposes: for obtain topological structure and
Calculation of pressure.
Be arranged stop valve before temperature, pressure-measuring-point, be arranged the main vapour of high pressure to heating steam header temperature-decreased pressure reducer after temperature,
Pressure-measuring-point is arranged gas turbine exhaust gas temperature, pressure and is supplied to heating steam header steam flow measuring point, temperature-decreased pressure reducer is arranged
Attemperation water flow measuring point.Measuring point purposes: it is used for back pressure turbine security evaluation.
Steam turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.Measuring point purposes: wattful power
Rate is used for back pressure unit efficiency calculation, and voltage, electric current, reactive power are used for Security Checking and status assessment.
It is preferred that the utility model further includes measuring point system inside lithium bromide chiller；
In power plant, the effect of lithium bromide chiller is the hot water for absorbing 1 grade of tail flue gas heat exchanger of waste heat boiler and going out, and is utilized
Thermal energy achievees the purpose that other side cold water cooling as power；As seen from Figure 7, lithium bromide chiller by 1 operation, 1 it is standby
With running configuration, mouth, 3 energy outfluxes can be flowed by sharing 3；Respectively hot water entrance and two cold water inlet and outlet；
Hot water circuit pump discharge main-piping pressure is set.Measuring point purposes: it is used for lithium bromide chiller state estimation.
Lithium bromide chiller hot water side inlet temperature, pressure, flow, outlet temperature measuring point are set, and setting lithium bromide chiller is cold
Circulating chilled water pump inlet pressure measuring point is arranged in water side-entrance temperature, pressure, outlet temperature, flow measuring point.Measuring point purposes: it is used for
Lithium bromide chiller module calculates and optimal dispatch control.
It is preferred that the utility model further includes transformer measuring point system；
In power plant, the main function of transformer is the voltage class for carrying out generator side conveying, and transformation is to meet electric power
The voltage class of bus demand.As seen from Figure 8, transformer energy stream has 2 imports, 1 outlet.2 imports are respectively from combustion
Machine generator (A) and steam turbine power generation machine (C1/C2), outlet are then sent to power bus-bar.
Setting generator comes voltage, electric current, active power, reactive power measuring point, setting transformer to power bus-bar electric current,
Active power, reactive power measuring point.Measuring point purposes: state estimation and safety analysis for electric energy streams in multipotency streaming system.
It is preferred that the utility model further includes gas fired-boiler measuring point system；
In power plant, the effect of gas fired-boiler is mainly instantaneously producing steam；Gas fired-boiler has 2 can flow into mouth, and 2
It can outflux；2 imports are respectively natural gas and chemical demineralizing water, and 2 outlets are the steam and flue gas generated after doing work；
Gas fired-boiler Imported gas temperature, pressure, flow measuring point are set, demineralized water inlet temperature, pressure, flow are set
Outlet steam temperature, pressure, flow measuring point is arranged in measuring point, and exit gas temperature measuring point is arranged.Measuring point purposes: it is used for gas-fired boiler
The calculating of furnace performance, safety analysis and optimal dispatch control.
It is preferred that the utility model further includes electrical chillers measuring point system；
In power plant, similar to lithium bromide chiller, difference is it using electric energy as power for the effect of electrical chillers；Electricity refrigeration
For unit by 2 operations, 1 standby operation configuration, mouth, 3 energy outfluxes can be flowed by sharing 3；Cold water is respectively connected to supply, return
Jellyfish pipe；
Measuring point setting and the measuring point purposes for meeting multipotency streaming system are as follows:
Electric refrigerating machine outlet temperature, circulating chilled water pump discharge main-piping pressure measuring point are set, inlet temperature, pressure, stream are set
Measuring point.Measuring point purposes: for electrical chillers state estimation, performance calculates and optimal dispatch control.
Electric refrigerating machine active power, reactive power measuring point are set.Measuring point purposes: it is calculated for electrical chillers from power consumption.
It is preferred that the utility model further includes external energy supply measuring point system；
By previously described it is found that the external supply energy source of distributed energy includes cold water, hot water, steam, electric energy；By Figure 11
In as it can be seen that external energized part include 5 can flow into mouth, 5 can outfluxes；It is respectively used to hot water user outside factory, cold outside factory
Water user, factory inner cold water user, cold-storage water pot, steam user, power generation online outside factory；
Measuring point setting and the measuring point purposes for meeting multipotency streaming system are as follows:
Hot water circulating pump inlet pressure measuring point is set, Integral heat-exchange device unit hot water side inlet temperature, pressure, stream are set
Amount, outlet temperature, pressure-measuring-point, setting Integral heat-exchange device unit tap water side-entrance temperature, pressure, flow, outlet temperature,
Accumulation of heat water tank temperature, liquid level, outlet temperature, flow, domestic hot-water's pump discharge pressure measuring point is arranged in pressure-measuring-point.Measuring point purposes:
State estimation and safety analysis for supplying hot water outside factory.
Cold water circulation pump inlet temperature, pressure, flow, outlet pressure measuring point are set, cold water user's return water temperature outside factory is set
Degree, pressure-measuring-point.Measuring point purposes: for outside factory for the state estimation of cold water and safety analysis.
Cold water circulation pump inlet temperature, pressure, flow, outlet pressure measuring point are set, factory's inner cold water user return water temperature is set
Degree, pressure-measuring-point, are arranged cold-storage water pot inlet temperature, outlet temperature, pressure, flow measuring point, and setting lets cool circulating-pump outlet pressure
Power measuring point.Measuring point purposes: in factory for the state estimation and safety analysis of cold water and cold-storage water pot.
The temperature of temperature-decreased pressure reducer desuperheating water is arranged for temperature, pressure, flow measuring point after steam temperature reducing and pressure reducing device outside factory in setting
Degree, pressure, flow measuring point.Measuring point purposes: for outside factory for the state estimation of steam and safety analysis.
Setting power generation online power bus-bar voltage, electric current, active power, reactive power measuring point.Measuring point purposes: for outside factory
For the state estimation and safety analysis of electric energy.
The beneficial effects of the utility model are:
1. at present in the world without proposing the measuring point design scheme for meeting the monitoring of multipotency stream for " one takes out a back " unit, this
Scheme system is put forward for the first time, and application of succeeding in practical projects.
2. multipotency stream IEMS system can become apparent from the equipment for grasping unit in factory on the basis of acquisition data are analyzed
Performance, and equipment state assessment and the Optimized Operation based on load prediction are carried out, it is artificial by operations staff compared to conventional power plants
The on-road efficiency of the mode of judgement, unit is more excellent.
Detailed description of the invention
Fig. 1 is " one takes out a back " type energy source station overall structure diagram；
Fig. 2 is supercharger and gas turbine group schematic diagram；
Fig. 3 is extraction and condensing unit waste heat boiler schematic diagram；
Fig. 4 is extraction condensing type Turbo-generator Set schematic diagram；
Fig. 5 is back pressure unit waste heat boiler schematic diagram；
Fig. 6 is back pressure type steam turbine generating set schematic diagram；
Fig. 7 is lithium bromide chiller schematic diagram；
Fig. 8 is transformer schematic diagram；
Fig. 9 is gas fired-boiler schematic diagram；
Figure 10 is electrical chillers schematic diagram；
Figure 11 is externally to energize schematic diagram.
Specific embodiment
The technical solution of the utility model, but the protection scope of the utility model are described in further detail with reference to the accompanying drawing
It is not limited to as described below.
On the basis of to background technique and prior art analysis and summary, by mature multipotency stream IEMS theory skill
The actual conditions of art combination distributed busbar protection design, propose that one kind is satisfied with distributed busbar protection multipotency streaming system SCADA function
The point arrangement system of energy demand, point arrangement system consider feasibility, reasonability and the safety of measuring point design.This is practical
" one takes out a back " type unit (an extraction condensing type generating set, the back pressure of novel pin to Typical Disposition in distributed busbar protection
Formula generating set), propose the point arrangement system for meeting multipotency stream IEMS system requirements in entire energy source station.Specific implementation
(note: all types of measuring points respectively indicate in scheme are as follows: T_ temperature point under such as；P_ pressure-measuring-point；F_ flow measuring point；H_ calorific value
Measuring point；L_ liquid level measuring point；V_ voltage magnitude measuring point；I_ current amplitude measuring point；AP_ active power measuring point；AQ_ reactive power is surveyed
Point):
As shown in Figure 1, " one take out one back " type energy source station overall structure is as shown in Figure 1, each block diagram respectively indicates in Fig. 1
Are as follows:
A indicates supercharger and gas turbine group；
B1 indicates extraction and condensing unit waste heat boiler；
C1 indicates extraction condensing type Turbo-generator Set；
B2 indicates back pressure unit waste heat boiler；
C2 indicates back pressure type steam turbine generating set；
D indicates lithium bromide chiller；
E indication transformer；
F indicates gas fired-boiler；
G indicates electrical chillers；
H is expressed as to external energy supply；
Between each block diagram to flow interactive relation as shown in fig. 1.
A kind of distributed busbar protection multipotency stream measuring point system, A, B1, C1 in Fig. 1 have collectively constituted extraction and condensing unit, in Fig. 1
A, B2, C2 collectively constituted back pressure unit, D, E, F, G in Fig. 1 have collectively constituted the auxiliary system of two units, take out solidifying machine
Group and back pressure unit are externally supplied by hot water confession/return water main pipe, heating steam header, cold water confession/return water main pipe, power bus-bar
It is various forms of to flow；
Natural gas transportation main pipe is provided with temperature, pressure, flow and calorific value measuring point；Measuring point purposes: temperature, pressure and stream
Amount is used for state estimation, and calorific value is for calculating gas turbine, gas fired-boiler efficiency.
Heating steam header is provided with temperature, pressure-measuring-point；Measuring point purposes: it is used for safety analysis.
Power bus-bar is provided with voltage measuring point；Measuring point purposes: it is used for safety analysis.
Energy source station environment is provided with temperature, pressure, humidity measuring point, and (multipotency streaming system needs environment locating for energy source station to join
Number, it is therefore desirable in energy source station, environment temperature, pressure, humidity measuring point are set, in energy source station any open environment installation temperature,
Pressure, humidity sensor)；Measuring point purposes: it is corrected for gas turbine calculated result.
The aperture measuring point of the valve state measuring point of all turn-off type valves and all adjustment type valves in energy source station is set.
Purposes: for obtaining energy source station multipotency stream topological structure.
In a preferred embodiment, as shown in Fig. 2, the utility model further includes surveying inside supercharger and gas turbine group
Dot system；
Gas turbine has 2 can flow into mouth and 2 energy outfluxes, and import 1 is that gas pressure is promoted to completely by supercharger
After sufficient gas turbine requires, through pressure flow control device, natural gas is sent into combustion chamber, import 2 is compressor sucking atmosphere
For air to meet the certain air/fuel ratio of gas turbine, outlet 1 is the flue gas of gas turbine tail discharge, is sent directly into waste heat pot
Furnace (B1/B2), outlet 2 is that fuel engine power generation machine send power generation to transformer (E)；
Natural gas boosting electric power measuring point is set；Measuring point purposes: it is calculated for Gas Turbine Generating Units from power consumption.
Natural gas boosting machine outlet temperature, pressure, flow measuring point are set；Measuring point purposes: it is calculated for gas turbine performance.
Compressor inlet air themperature, pressure, flow measuring point, outlet air temperature, pressure-measuring-point are set；Measuring point purposes:
For compressor power consumption calculation and safety analysis.
Gas turbine exit gas temperature, pressure-measuring-point are set；Measuring point purposes: gas turbine proficiency calculates.
Gas turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.Measuring point purposes: active
Power is calculated for gas turbine proficiency, and voltage, electric current, reactive power are used for Security Checking and status assessment.
In a preferred embodiment, as shown in figure 3, the utility model further includes measuring point inside extraction and condensing unit waste heat boiler
System；
Extraction and condensing unit waste heat boiler has 4 can flow into mouth, 4 energy outfluxes；Import 1 is by the tail portion gas turbine group (A) cigarette
Gas comes, and for the heat exchanger heat exchange at different levels such as waste heat boiler mesohigh superheater, high steam device, low-pressure superheater, import 2 is by taking out
The condensed water of condensing turbine (C1) condenser comes, and outlet 1 is that the main vapour of high pressure that high-pressure superheater generates is sent to pumping condensing turbine
(C1) high pressure cylinder does work, and outlet 2 is that the main vapour of low pressure that low-pressure superheater generates is sent to pumping condensing turbine (C1) low pressure (LP) cylinder acting.This
Outside, 1 grade of tail flue gas heat exchanger is exchanged with lithium bromide chiller (D) progress hot water in figure, 2 grades of tail flue gas heat exchangers and hot water
For/return water main pipe progress hot water exchange；
High-pressure superheater, high pressure evaporator, low-pressure superheater, high-pressure economizer, low pressure evaporator, low pressure are set and save coal
Device, 1 grade of tail flue gas heat exchanger, 2 grades of tail flue gas heat exchanger exit flue-gas temperature measuring points；Measuring point purposes: it is used for extraction and condensing unit
Waste heat boiler modeling and state estimation.
Waste heat boiler back-end ductwork pressure, flow measuring point are set；Measuring point purposes: for extraction and condensing unit waste heat boiler modeling and
State estimation.
High-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, HP steam drum temperature, pressure are set
Power, liquid level measuring point, are arranged low-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, and setting high pressure saves
Coal device inlet steam temperature, pressure, outlet steam temperature, pressure, flow measuring point, setting high pressure water pump front and back pressure-measuring-point,
Low-pressure drum temperature, pressure, liquid level measuring point are set, low-pressure coal saver inlet temperature, pressure, flow, outlet temperature measuring point are set,
Condensed water recirculation pump outlet pressure measuring point is set, 1 grade of tail flue gas heat exchanger import hot water temperature, outlet hot water's temperature are set
2 grades of tail flue gas heat exchanger import hot water temperatures, outlet hot water's temperature, pressure, flow survey is arranged in degree, pressure, flow measuring point
Point.Measuring point purposes: for the modeling of extraction and condensing unit waste heat boiler and state estimation.
In a preferred embodiment, as shown in figure 4, the utility model further includes surveying inside extraction condensing type Turbo-generator Set
Dot system；
Extraction condensing type Turbo-generator Set has 2 can flow into mouth, 4 energy outfluxes；Import 1 is by extraction and condensing unit waste heat boiler
(B1) the main vapour of high pressure comes, and is then divided into three tunnels, enters steam turbine high-pressure cylinder all the way and does work, is all the way high pressure turbine by, another way warp
It is sent after temperature-decreased pressure reducer to heating steam header (outlet 1)；Import 2 by the main vapour of extraction and condensing unit waste heat boiler (B1) low pressure Lai, and
After be divided into two-way, be all the way low voltage bypass, another way is sent after merging with high pressure cylinder steam extraction to heating steam header (outlet 2)；It takes out
Condensed water is returned to extraction and condensing unit waste heat boiler (B1), extraction condensing type steamer by condenser by low pressure (LP) cylinder after solidifying formula steam turbine acting
Generator send power generation to transformer (E)；
Measuring point setting and the measuring point purposes for meeting multipotency streaming system are as follows:
High pressure main stop valve, low pressure stop valve valve state measuring point are set, and setting septum valve, low pressure modulating valve valve are opened
Spend measuring point.Measuring point purposes: for obtaining topological structure and calculation of pressure.
Temperature, pressure-measuring-point before setting high pressure main stop valve, are arranged temperature, temperature-decreased pressure reducer before high pressure turbine by temperature-decreased pressure reducer
Temperature, pressure-measuring-point after the main vapour of high pressure to heating steam header temperature-decreased pressure reducer is arranged in temperature, pressure-measuring-point afterwards, and low pressure is arranged
Temperature, pressure-measuring-point after temperature, temperature-decreased pressure reducer is arranged before low voltage bypass temperature-decreased pressure reducer in temperature, pressure-measuring-point after stop valve,
Each temperature-decreased pressure reducer attemperation water flow measuring point is set；Measuring point purposes: it is used for sucking condensing turbine security evaluation.
(i.e. steam turbine steam extraction) temperature, pressure-measuring-point after setting low pressure modulating valve, setting steam turbine steam extraction are mixed with the main vapour of low pressure
Temperature afterwards, pressure, flow measuring point；Measuring point purposes: calculating for steam turbine and steam turbine state estimation.
Condenser vacuum, condensed water refill flow, condensate pump front and back pressure-measuring-point, the outlet of setting condensate pump are set
Main pipe temperature, pressure, flow measuring point.Measuring point purposes: modeling and state estimation for condensate system.
Steam turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.Measuring point purposes: wattful power
Rate is used for extraction and condensing unit efficiency calculation, and voltage, electric current, reactive power are used for Security Checking and status assessment.
In a preferred embodiment, as shown in figure 5, the utility model further includes measuring point inside back pressure unit waste heat boiler
System；
Back pressure unit waste heat boiler has 3 can flow into mouth, 5 energy outfluxes；Import 1 is by the tail portion gas turbine group (A) cigarette
Gas comes, for the heat exchanger heat exchange at different levels such as waste heat boiler mesohigh superheater, high steam device, low-pressure superheater；Outlet 1 is high
The main vapour of high pressure that pressure superheater generates, which is sent to back pressure turbine (C2) cylinder, to do work, and outlet 2 is the low of low-pressure superheater generation
Main vapour is pressed to send to heating steam header, outlet 3 is that low pressure feed water pump discharge branch to back pressure turbine (C2) is used as desuperheating water；
In addition, 1 grade of tail flue gas heat exchanger is exchanged with lithium bromide chiller (D) progress hot water in figure, 2 grades of tail flue gas heat exchangers and hot water
For/return water main pipe progress hot water exchange；
High-pressure superheater, high pressure evaporator, low-pressure superheater, high-pressure economizer, low pressure evaporator, low pressure are set and save coal
Device, 1 grade of tail flue gas heat exchanger, 2 grades of tail flue gas heat exchanger exit flue-gas temperature measuring points.Measuring point purposes: it is used for back pressure unit
Waste heat boiler modeling and state estimation.
Waste heat boiler back-end ductwork pressure, flow measuring point are set.Measuring point purposes: for back pressure unit waste heat boiler modeling and
State estimation.
High-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point are set, HP steam drum temperature is set
Degree, pressure, liquid level measuring point, are arranged low-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, and setting is high
Economizer inlet steam temperature, pressure, outlet steam temperature, pressure, flow measuring point are pressed, pressure is surveyed before and after setting high pressure water pump
Low-pressure drum temperature, pressure, liquid level measuring point is arranged in point, and low-pressure coal saver inlet temperature, pressure, outlet temperature measuring point is arranged, if
Pressure feed pump inlet and outlet pressure, entrance main pipe flow measuring point are set low, 1 grade of tail flue gas heat exchanger import hot water temperature is set, is gone out
Mouthful hot water temperature, pressure, flow measuring point, be arranged 2 grades of tail flue gas heat exchanger import hot water temperatures, outlet hot water's temperature, pressure,
Flow measuring point.Measuring point purposes: for the modeling of back pressure unit waste heat boiler and state estimation.
In a preferred embodiment, as shown in fig. 6, the utility model further includes surveying inside back pressure type steam turbine generating set
Dot system；
Extraction condensing type Turbo-generator Set has 2 can flow into mouth, 3 energy outfluxes；Import 1 is by back pressure unit waste heat boiler
(B2) the main vapour of high pressure comes, and is then divided into two-way, enters steam turbine all the way and does work, another way is sent after temperature-decreased pressure reducer to confession
Hot steam header (outlet 1)；Import 2 is subtracted by back pressure unit waste heat boiler (B2) low pressure feed water pump discharge branch for desuperheat
Depressor desuperheating water；Outlet 2 is that back pressure turbine send the steam after acting to heating steam header；In addition, back pressure type steam turbine
Generator send power generation to transformer (E)；
Stop valve valve state, septum valve valve opening measuring point are set.Measuring point purposes: for obtain topological structure and
Calculation of pressure.
Be arranged stop valve before temperature, pressure-measuring-point, be arranged the main vapour of high pressure to heating steam header temperature-decreased pressure reducer after temperature,
Pressure-measuring-point is arranged gas turbine exhaust gas temperature, pressure and is supplied to heating steam header steam flow measuring point, temperature-decreased pressure reducer is arranged
Attemperation water flow measuring point.Measuring point purposes: it is used for back pressure turbine security evaluation.
Steam turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.Measuring point purposes: wattful power
Rate is used for back pressure unit efficiency calculation, and voltage, electric current, reactive power are used for Security Checking and status assessment.
In a preferred embodiment, as shown in fig. 7, the utility model further includes measuring point system inside lithium bromide chiller；
In power plant, the effect of lithium bromide chiller is the hot water for absorbing 1 grade of tail flue gas heat exchanger of waste heat boiler and going out, and is utilized
Thermal energy achievees the purpose that other side cold water cooling as power；As seen from Figure 7, lithium bromide chiller by 1 operation, 1 it is standby
With running configuration, mouth, 3 energy outfluxes can be flowed by sharing 3；Respectively hot water entrance and two cold water inlet and outlet；
Hot water circuit pump discharge main-piping pressure is set.Measuring point purposes: it is used for lithium bromide chiller state estimation.
Lithium bromide chiller hot water side inlet temperature, pressure, flow, outlet temperature measuring point are set, and setting lithium bromide chiller is cold
Circulating chilled water pump inlet pressure measuring point is arranged in water side-entrance temperature, pressure, outlet temperature, flow measuring point.Measuring point purposes: it is used for
Lithium bromide chiller module calculates and optimal dispatch control.
In a preferred embodiment, as shown in figure 8, the utility model further includes transformer measuring point system；
In power plant, the main function of transformer is the voltage class for carrying out generator side conveying, and transformation is to meet electric power
The voltage class of bus demand.As seen from Figure 8, transformer energy stream has 2 imports, 1 outlet.2 imports are respectively from combustion
Machine generator (A) and steam turbine power generation machine (C1/C2), outlet are then sent to power bus-bar.
Setting generator comes voltage, electric current, active power, reactive power measuring point, setting transformer to power bus-bar electric current,
Active power, reactive power measuring point.Measuring point purposes: state estimation and safety analysis for electric energy streams in multipotency streaming system.
In a preferred embodiment, as shown in figure 9, the utility model further includes gas fired-boiler measuring point system；
In power plant, the effect of gas fired-boiler is mainly instantaneously producing steam；Gas fired-boiler has 2 can flow into mouth, and 2
It can outflux；2 imports are respectively natural gas and chemical demineralizing water, and 2 outlets are the steam and flue gas generated after doing work；
Gas fired-boiler Imported gas temperature, pressure, flow measuring point are set, demineralized water inlet temperature, pressure, flow are set
Outlet steam temperature, pressure, flow measuring point is arranged in measuring point, and exit gas temperature measuring point is arranged.Measuring point purposes: it is used for gas-fired boiler
The calculating of furnace performance, safety analysis and optimal dispatch control.
In a preferred embodiment, as shown in Figure 10, the utility model further includes electrical chillers measuring point system；
In power plant, similar to lithium bromide chiller, difference is it using electric energy as power for the effect of electrical chillers；By Figure 10
In as it can be seen that electrical chillers by 2 operations, the configuration of 1 standby operation, share 3 can flow into mouth, 3 can outfluxes；Respectively
It is supplied to be connected to cold water, return water main pipe；
For Figure 10, measuring point setting and the measuring point purposes for meeting multipotency streaming system are as follows:
Electric refrigerating machine outlet temperature, circulating chilled water pump discharge main-piping pressure measuring point are set, inlet temperature, pressure, stream are set
Measuring point.Measuring point purposes: for electrical chillers state estimation, performance calculates and optimal dispatch control.
Electric refrigerating machine active power, reactive power measuring point are set.Measuring point purposes: it is calculated for electrical chillers from power consumption.
In a preferred embodiment, the utility model further includes external energy supply measuring point system；
By previously described it is found that the external supply energy source of distributed energy includes cold water, hot water, steam, electric energy；By Figure 11
In as it can be seen that external energized part include 5 can flow into mouth, 5 can outfluxes；It is respectively used to hot water user outside factory, cold outside factory
Water user, factory inner cold water user, cold-storage water pot, steam user, power generation online outside factory；
For Figure 11, measuring point setting and the measuring point purposes for meeting multipotency streaming system are as follows:
Hot water circulating pump inlet pressure measuring point is set, Integral heat-exchange device unit hot water side inlet temperature, pressure, stream are set
Amount, outlet temperature, pressure-measuring-point, setting Integral heat-exchange device unit tap water side-entrance temperature, pressure, flow, outlet temperature,
Accumulation of heat water tank temperature, liquid level, outlet temperature, flow, domestic hot-water's pump discharge pressure measuring point is arranged in pressure-measuring-point.Measuring point purposes:
State estimation and safety analysis for supplying hot water outside factory.
Cold water circulation pump inlet temperature, pressure, flow, outlet pressure measuring point are set, cold water user's return water temperature outside factory is set
Degree, pressure-measuring-point.Measuring point purposes: for outside factory for the state estimation of cold water and safety analysis.
Cold water circulation pump inlet temperature, pressure, flow, outlet pressure measuring point are set, factory's inner cold water user return water temperature is set
Degree, pressure-measuring-point, are arranged cold-storage water pot inlet temperature, outlet temperature, pressure, flow measuring point, and setting lets cool circulating-pump outlet pressure
Power measuring point.Measuring point purposes: in factory for the state estimation and safety analysis of cold water and cold-storage water pot.
The temperature of temperature-decreased pressure reducer desuperheating water is arranged for temperature, pressure, flow measuring point after steam temperature reducing and pressure reducing device outside factory in setting
Degree, pressure, flow measuring point.Measuring point purposes: for outside factory for the state estimation of steam and safety analysis.
Setting power generation online power bus-bar voltage, electric current, active power, reactive power measuring point.Measuring point purposes: for outside factory
For the state estimation and safety analysis of electric energy.
Two combined cycle units that the utility model is configured for " one takes out a back " type, by multipotency stream IEMS system
Acquisition information needed for SCADA system, conversion form detailed measuring point figure and acquisition information detailed description, are not influencing unit
Under performance and the goal prerequisite of economic optimum, for the measuring point design scheme for meeting multipotency streaming system monitoring needs.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, and should refer to
Out, any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should all include
It is within the protection scope of the utility model.
Claims (10)
1. a kind of distributed busbar protection multipotency stream measuring point system, it is characterised in that: more than supercharger and gas turbine group, extraction and condensing unit
Heat boiler, extraction condensing type Turbo-generator Set have collectively constituted extraction and condensing unit, supercharger and gas turbine group, back pressure unit waste heat pot
Furnace, back pressure type steam turbine generating set have collectively constituted back pressure unit, lithium bromide chiller, transformer, gas fired-boiler, electrical chillers
The auxiliary system of two units, extraction and condensing unit and back pressure unit has been collectively constituted to join by hot water confession/return water main pipe, heating steam
Case, cold water confession/return water main pipe, power bus-bar externally supply various forms of energy streams；
Temperature, pressure, flow and calorific value measuring point is arranged in natural gas transportation main pipe；
Temperature, pressure-measuring-point is arranged in heating steam header；
Voltage measuring point is arranged in power bus-bar；
Temperature, pressure, humidity measuring point is arranged in energy source station environment；
The aperture measuring point of the valve state measuring point of all turn-off type valves and all adjustment type valves in energy source station is set.
2. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes increasing
Measuring point system inside press and gas turbine group；
Gas turbine have 2 can flow into mouth and 2 can outfluxes, import 1 is that gas pressure is promoted to satisfaction combustion by supercharger
After gas-turbine requires, through pressure flow control device, natural gas is sent into combustion chamber, import 2 is compressor sucking atmospheric air
To meet the certain air/fuel ratio of gas turbine, outlet 1 is the flue gas of gas turbine tail discharge, is sent directly into waste heat boiler, out
Mouth 2 is that fuel engine power generation machine send power generation to transformer；
Natural gas boosting electric power measuring point is set；
Natural gas boosting machine outlet temperature, pressure, flow measuring point are set；
Compressor inlet air themperature, pressure, flow measuring point, outlet air temperature, pressure-measuring-point are set；
Gas turbine exit gas temperature, pressure-measuring-point are set；
Gas turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.
3. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes taking out
Measuring point system inside solidifying unit waste heat boiler；
Extraction and condensing unit waste heat boiler has 4 can flow into mouth, 4 energy outfluxes；Import 1 by gas turbine group tail flue gas Lai, into
Mouth 2 is by the condensed water of pumping condensing turbine condenser Lai outlet 1 is that the main vapour of high pressure that high-pressure superheater generates is sent to pumping condensing turbine
High pressure cylinder acting, outlet 2 are that the main vapour of low pressure that low-pressure superheater generates is sent to the solidifying turbine low pressure cylinder acting of pumping；1 grade of tail portion cigarette
Gas heat exchanger carries out hot water with lithium bromide chiller and exchanges, and 2 grades of tail flue gas heat exchangers and hot water confession/return water main pipe carry out hot water friendship
It changes；
High-pressure superheater, high pressure evaporator, low-pressure superheater, high-pressure economizer, low pressure evaporator, low-pressure coal saver, 1 grade are set
Tail flue gas heat exchanger, 2 grades of tail flue gas heat exchanger exit flue-gas temperature measuring points；
Waste heat boiler back-end ductwork pressure, flow measuring point are set；
Be arranged high-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, HP steam drum temperature, pressure,
Low-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point is arranged in liquid level measuring point, and high-pressure economizer is arranged
Inlet steam temperature, pressure, outlet steam temperature, pressure, flow measuring point, setting high pressure water pump front and back pressure-measuring-point, setting
Low-pressure coal saver inlet temperature, pressure, flow, outlet temperature measuring point, setting is arranged in low-pressure drum temperature, pressure, liquid level measuring point
1 grade of tail flue gas heat exchanger import hot water temperature, outlet hot water's temperature, pressure is arranged in condensed water recirculation pump outlet pressure measuring point
2 grades of tail flue gas heat exchanger import hot water temperatures, outlet hot water's temperature, pressure, flow measuring point are arranged in power, flow measuring point.
4. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes taking out
Measuring point system inside solidifying formula Turbo-generator Set；
Extraction condensing type Turbo-generator Set has 2 can flow into mouth, 4 energy outfluxes；Import 1 is by extraction and condensing unit waste heat boiler high pressure master
Vapour comes, and is then divided into three tunnels, enters steam turbine high-pressure cylinder all the way and does work, is all the way high pressure turbine by, another way is through temperature-decreased pressure reducer
After send to heating steam header outlet 1；Import 2 by the main vapour of extraction and condensing unit waste heat boiler low pressure Lai, be then divided into two-way, all the way for
Low voltage bypass, another way are sent after merging with high pressure cylinder steam extraction to heating steam header outlet 2；Low pressure after sucking condensing turbine acting
Condensed water is returned to extraction and condensing unit waste heat boiler by condenser by cylinder, and extraction condensing type steam turbine generator send power generation to transformer；
High pressure main stop valve, low pressure stop valve valve state measuring point are set, and setting septum valve, low pressure modulating valve valve opening are surveyed
Point；
Temperature, pressure-measuring-point before high pressure main stop valve are set, temperature after temperature, temperature-decreased pressure reducer is set before high pressure turbine by temperature-decreased pressure reducer
Temperature, pressure-measuring-point after the main vapour of high pressure to heating steam header temperature-decreased pressure reducer is arranged in degree, pressure-measuring-point, and the main vapour of low pressure is arranged
Temperature, pressure-measuring-point after temperature, temperature-decreased pressure reducer, setting is arranged before low voltage bypass temperature-decreased pressure reducer in temperature, pressure-measuring-point after valve
Each temperature-decreased pressure reducer attemperation water flow measuring point；
Temperature, pressure-measuring-point after setting low pressure modulating valve, setting steam turbine steam extraction and the mixed temperature of the main vapour of low pressure, pressure, stream
Measuring point；
Condenser vacuum, condensed water refill flow, condensate pump front and back pressure-measuring-point, setting condensate pump outlet main pipe are set
Temperature, pressure, flow measuring point；
Steam turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.
5. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes back
Measuring point system inside press group waste heat boiler；
Back pressure unit waste heat boiler has 3 can flow into mouth, 5 energy outfluxes；Import 1 is used by gas turbine group tail flue gas
In the heat exchanger heat exchange at different levels such as waste heat boiler mesohigh superheater, high steam device, low-pressure superheater；Outlet 1 is high pressure superheater
Device generate the main vapour of high pressure send to back pressure turbine) cylinder acting, outlet 2 be low-pressure superheater generate the main vapour of low pressure send to
Heating steam header, outlet 3 is that low pressure feed water pump discharge branch to back pressure turbine is used as desuperheating water；In addition, 1 grade of tail portion cigarette
Gas heat exchanger carries out hot water with lithium bromide chiller and exchanges, and 2 grades of tail flue gas heat exchangers and hot water confession/return water main pipe carry out hot water friendship
It changes；
High-pressure superheater, high pressure evaporator, low-pressure superheater, high-pressure economizer, low pressure evaporator, low-pressure coal saver, 1 grade are set
Tail flue gas heat exchanger, 2 grades of tail flue gas heat exchanger exit flue-gas temperature measuring points；
Waste heat boiler back-end ductwork pressure, flow measuring point are set；
High-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, setting HP steam drum temperature, pressure are set
Power, liquid level measuring point, are arranged low-pressure superheater inlet steam temperature, outlet steam temperature, pressure, flow measuring point, and setting high pressure saves
Coal device inlet steam temperature, pressure, outlet steam temperature, pressure, flow measuring point, setting high pressure water pump front and back pressure-measuring-point,
Low-pressure drum temperature, pressure, liquid level measuring point are set, low-pressure coal saver inlet temperature, pressure, outlet temperature measuring point, setting are set
Low pressure feed water pumps inlet and outlet pressure, entrance main pipe flow measuring point, and 1 grade of tail flue gas heat exchanger import hot water temperature, outlet is arranged
2 grades of tail flue gas heat exchanger import hot water temperatures, outlet hot water's temperature, pressure, stream are arranged in hot water temperature, pressure, flow measuring point
Measuring point.
6. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes back
Measuring point system inside pressure type Turbo-generator Set；
Extraction condensing type Turbo-generator Set has 2 can flow into mouth, 3 energy outfluxes；Import 1 is by back pressure unit waste heat boiler high pressure master
Vapour comes, and is then divided into two-way, enters steam turbine all the way and does work, another way is sent after temperature-decreased pressure reducer to heating steam header
Outlet 1；Import 2 is used for temperature-decreased pressure reducer desuperheating water by back pressure unit waste heat boiler low pressure feed water pump discharge branch；Outlet 2
It is that back pressure turbine send the steam after acting to heating steam header；In addition, back pressure type steam turbine generator by power generation send to
Transformer；
Stop valve valve state, septum valve valve opening measuring point are set；
Temperature, pressure-measuring-point before setting stop valve, are arranged temperature, pressure after the main vapour of high pressure to heating steam header temperature-decreased pressure reducer
Measuring point is arranged gas turbine exhaust gas temperature, pressure and is supplied to heating steam header steam flow measuring point, temperature-decreased pressure reducer desuperheat is arranged
Water flow measuring point；
Steam turbine generator generator terminal three-phase voltage, electric current, active power, reactive power measuring point are set.
7. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes bromine
Change measuring point system inside lithium unit；
In power plant, the effect of lithium bromide chiller is the hot water for absorbing 1 grade of tail flue gas heat exchanger of waste heat boiler and going out, and utilizes thermal energy
As power, achieve the purpose that other side cold water cooling；Lithium bromide chiller shares 3 by 1 operation, 1 standby operation configuration
Mouth, 3 energy outfluxes can be flowed into；Respectively hot water entrance and two cold water inlet and outlet；
Hot water circuit pump discharge main-piping pressure is set；
Lithium bromide chiller hot water side inlet temperature, pressure, flow, outlet temperature measuring point are set, lithium bromide chiller cold water side is set
Circulating chilled water pump inlet pressure measuring point is arranged in inlet temperature, pressure, outlet temperature, flow measuring point.
8. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes becoming
Depressor measuring point system；
In power plant, the main function of transformer is the voltage class for carrying out generator side conveying, and transformation is to meet power bus-bar
The voltage class of demand, transformer energy stream have 2 imports, 1 outlet；2 imports are sent out respectively from fuel engine power generation machine and steam turbine
Motor, outlet are then sent to power bus-bar；
Setting generator comes voltage, electric current, active power, reactive power measuring point, setting transformer to power bus-bar electric current, active
Power, reactive power measuring point.
9. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes combustion
Gas boiler measuring point system；
In power plant, the effect of gas fired-boiler is mainly instantaneously producing steam；Gas fired-boiler has 2 can flow into mouth, and 2 can flow out
Mouthful；2 imports are respectively natural gas and chemical demineralizing water, and 2 outlets are the steam and flue gas generated after doing work；
Gas fired-boiler Imported gas temperature, pressure, flow measuring point are set, and setting demineralized water inlet temperature, pressure, flow are surveyed
Outlet steam temperature, pressure, flow measuring point is arranged in point, and exit gas temperature measuring point is arranged.
10. a kind of distributed busbar protection multipotency stream measuring point system according to claim 1, it is characterised in that: it further includes
Electrical chillers measuring point system；
In power plant, similar to lithium bromide chiller, difference is it using electric energy as power for the effect of electrical chillers；Electrical chillers
By 2 operations, 1 standby operation configuration, mouth, 3 energy outfluxes can be flowed by sharing 3；Respectively it is connected to cold water confession, return water mother
Pipe；
Electric refrigerating machine outlet temperature, circulating chilled water pump discharge main-piping pressure measuring point are set, and setting inlet temperature, pressure, flow are surveyed
Point；
Electric refrigerating machine active power, reactive power measuring point are set.
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| CN201821365290.XU CN208793102U (en) | 2018-08-23 | 2018-08-23 | A kind of distributed busbar protection multipotency stream measuring point system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109162810A (en) * | 2018-08-23 | 2019-01-08 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of multipotency stream measuring point system for distributed busbar protection |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109162810A (en) * | 2018-08-23 | 2019-01-08 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of multipotency stream measuring point system for distributed busbar protection |
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