CN106382133B - Pure burning blast-furnace gas combustion and steam unit property regulation method and its system - Google Patents
Pure burning blast-furnace gas combustion and steam unit property regulation method and its system Download PDFInfo
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- CN106382133B CN106382133B CN201610788490.5A CN201610788490A CN106382133B CN 106382133 B CN106382133 B CN 106382133B CN 201610788490 A CN201610788490 A CN 201610788490A CN 106382133 B CN106382133 B CN 106382133B
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- gas compressor
- pressure gas
- low
- high pressure
- unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A kind of pure burning blast-furnace gas combustion and steam unit property regulation method and its system, parameter is detected according to each machine group parts are surveyed, obtain the efficiency of low-pressure gas compressor, high pressure gas compressor, steam turbine and gas turbine, and further determine that the contribution degree of the overall coal consumption of unit and each machine group parts to the overall coal consumption of unit, so as to realize property regulation by being controlled adjustment to the maximum machine group parts of contribution degree, described machine group parts include：Low-pressure gas compressor, high pressure gas compressor, waste heat boiler, steam turbine and gas turbine, the present invention being capable of accuracy controlling each machine group parts, control is compared to each detection parameter, it is more autotelic that unit is controlled, so as to improve the overall efficiency of unit.
Description
Technical field
The present invention relates to a kind of technology in Generation Control field, specifically a kind of pure burning blast-furnace gas gas steam engine
Group property regulation method and its system.
Background technology
The combustion and steam unit total consumption of coal of pure burning blast-furnace gas (BFG) is relevant with each machine group parts operational efficiency.Generator
Group parameter in production run can constantly change, and the fluctuation of unit operation parameter can cause the operation of each part of unit
Efficiency changes, and then influences the overall coal consumption of unit.
The content of the invention
The present invention is directed to deficiencies of the prior art, proposes a kind of pure burning blast-furnace gas combustion and steam unit performance
Adjusting method and its system, can accuracy controlling each machine group parts, control is compared to each detection parameter, more purposefully
Unit is controlled, so as to improve the overall efficiency of unit.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of pure burning blast-furnace gas combustion and steam unit property regulation method, according to each machine group parts of actual measurement
Parameter is detected, the efficiency of low-pressure gas compressor, high pressure gas compressor, steam turbine and gas turbine is obtained, one is gone forward side by side
Step determines the contribution degree of the overall coal consumption of unit and each machine group parts to the overall coal consumption of unit, so that by maximum to contribution degree
Machine group parts be controlled adjustment and realize property regulation.
Described machine group parts include：Low-pressure gas compressor, high pressure gas compressor, waste heat boiler, steam turbine with
And gas turbine.
Described detection parameter includes：Generator end is exerted oneself PWA, gas turbine power output PGT, low-pressure gas compressor
Input power WLC, high pressure gas compressor power input WHC, BFG mass flows Gg, BFG volume flows Lg, BFG low heat valves
QL, BFG equivalent molal weight MBFG, enthalpy i under BFG feed air temperaturesFA, low-pressure gas Compressor Inlet Temperature T2, low pressure coal
Air compressor outlet temperature T3, high pressure gas Compressor Inlet Temperature T4, high pressure gas compressor exit temperature T5, low-pressure gas
Compressor Inlet Pressure p2, low-pressure gas compressor delivery pressure p3, high pressure gas Compressor Inlet Pressure p4With high pressure coal air pressure
Contracting machine outlet pressure p5。
The efficiency of described gas turbineThe efficiency of low-pressure gas compressor
The efficiency of high pressure gas compressorThe efficiency eta of steam turbineST=-0.02631PWA
+67.61。
The overall coal consumption of described unit
The contribution degree b of described low-pressure gas compressorCL=-1.165 ηCL+0.1549。
The contribution degree b of described high pressure gas compressorCH=-0.7632 ηCH+0.0928。
The contribution degree b of described gas turbineT=-4.154 ηT+0.488。
The contribution degree b of described steam turbineST=-1.3035 ηST+0.482。
The contribution degree b of described waste heat boilerHR=2.234 (Tpy- 150)/1.5+0.2381, wherein：TpyFor waste heat boiler
Exhaust gas temperature.
The present invention relates to a kind of system for realizing the above method, including：Measurement module, performance calculating module and control mould
Block, wherein：Measurement module is connected with each machine group parts acquisition detection parameter and is sent to performance calculating module, performance calculating module
The overall coal consumption of unit is calculated to obtain the contribution degree of each machine group parts, control module receives the contribution degree of each machine group parts and to tribute
The maximum machine group parts of degree of offering are controlled adjustment.
Brief description of the drawings
Fig. 1 is pure burning blast-furnace gas combustion and steam unit schematic diagram；
Fig. 2 is schematic flow sheet of the present invention；
Fig. 3 is present system schematic diagram.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementations
Example.
Embodiment 1
As shown in figure 1, the machine group parts of pure burning blast-furnace gas combustion and steam unit include：Low-pressure gas compressor, high pressure
Gas compression pump, waste heat boiler, steam turbine and gas turbine.Air air inlet compressor boosts, the blast furnace of low heat value
Coal gas enters low-pressure gas compressor, enters mixed combustion in combustion chamber simultaneously after then entering the boosting of high pressure gas compressor,
Produce high temperature and high pressure flue gas adiabatic expansion in turbine to do work, while by part power output with engine-driven air compressor, low pressure coal
Air compressor and high pressure gas compressor operating, remaining pushing generator generate electricity.Flue-gas temperature after combustion gas turbine does work
500~550 DEG C are down to, heat energy is reclaimed into waste heat boiler.Waste heat boiler was using doing the flue gas after work(among combustion gas turbine
Waste heat produces high, medium and low voltage superheated steam and done work in steam turbine in the boiler, and pushing generator generates electricity.Here combustion gas wheel
Machine refers to the entirety of air compressor press, combustion chamber and combustion gas turbine.
As shown in Fig. 2 the pure burning blast-furnace gas combustion and steam unit property regulation method in the present embodiment, including following step
Suddenly：
1) each machine group parts detection parameter is measured, and calculates low-pressure gas compressor, high pressure gas compressor, steam turbine
And the efficiency of gas turbine.
Described detection parameter includes：Generator end is exerted oneself PWA, gas turbine power output PGT, low-pressure gas compressor
Input power WLC, high pressure gas compressor power input WHC, Blast Furnace Gas Quality flow Gg, BFG volume flows Lg, BFG low levels
Caloric value QL, BFG equivalent molal weight MBFG, enthalpy i under BFG feed air temperaturesFA, low-pressure gas Compressor Inlet Temperature T2、
Low-pressure gas compressor exit temperature T3, high pressure gas Compressor Inlet Temperature T4, high pressure gas compressor exit temperature T5, it is low
Press gas compression pump inlet pressure p2, low-pressure gas compressor delivery pressure p3, high pressure gas Compressor Inlet Pressure p4And high pressure
Gas compression pump outlet pressure p5。
The efficiency of described gas turbineThe efficiency of low-pressure gas compressor
The efficiency of high pressure gas compressorThe efficiency eta of steam turbineST=-0.02631PWA
+67.61。
2) the overall coal consumption of unit is calculated.
The overall coal consumption of described unitThe overall coal consumption of described unit is with the standard coal of every kilowatt hour
Consume to weigh.
3) contribution degree of each unit component efficiencies to the overall coal consumption of unit is obtained.
The contribution degree b of described low-pressure gas compressorCL=-1.165 ηCL+ 0.1549, wherein：ηCLFor low-pressure gas pressure
The efficiency of contracting machine.When the efficiency of low-pressure gas compressor raises 1% relatively, the overall coal consumption of unit is improved, that is, reduces coal consumption about
1.17g/kWh。
The contribution degree b of described high pressure gas compressorCH=-0.7632 ηCH+ 0.0928, wherein：ηCHFor high pressure coal air pressure
The efficiency of contracting machine.When the efficiency of high pressure gas compressor raises 1% relatively, the overall coal consumption of unit is improved, that is, reduces coal consumption about
0.76g/kWh。
The contribution degree b of described gas turbineT=-4.154 ηT+ 0.488, wherein：ηTFor the efficiency of gas turbine.Combustion gas
When the efficiency of turbine raises 1% relatively, the overall coal consumption of unit is improved, that is, reduces coal consumption about 4.15g/kWh.
The contribution degree b of described steam turbinesT=-1.3035 ηsT+ 0.482, wherein：ηSTFor the efficiency of steam turbine.Steam
When the efficiency of steam turbine raises 1% relatively, the overall coal consumption of unit is improved, that is, reduces coal consumption about 1.3g/kWh.
The contribution degree b of described waste heat boilerHR=2.234 (Tpy- 150)/1.5+0.2381, wherein：TpyFor waste heat boiler
Exhaust gas temperature.When waste heat boiler exhaust gas temperature often raises 1%, the overall coal consumption of unit about 2.23g/kWh is improved.
4) the maximum machine group parts of contribution degree are controlled adjustment to reduce overall coal consumption.
As shown in figure 3, it is related to the system for realizing the above method in the present embodiment, including：Measurement module, performance calculating module
And control module, wherein：Measurement module is connected with each machine group parts acquisition detection parameter and is sent to performance calculating module, performance
Each unit component efficiencies of computing module and the overall coal consumption of unit are to obtain the contribution degree of each machine group parts, and control module receives each machine
The contribution degree of group parts is simultaneously controlled adjustment to the maximum machine group parts of contribution degree.
Compared with prior art, the present invention can accuracy controlling each machine group parts, each detection parameter is compared
Control, it is more autotelic that unit is controlled, so as to improve the overall efficiency of unit.
Claims (2)
1. a kind of pure burning blast-furnace gas combustion and steam unit property regulation method, it is characterised in that according to each machine group parts of actual measurement
Parameter is detected, the efficiency of low-pressure gas compressor, high pressure gas compressor, steam turbine and gas turbine is obtained, one is gone forward side by side
Step determines the contribution degree of the overall coal consumption of unit and each machine group parts to the overall coal consumption of unit, so that by maximum to contribution degree
Machine group parts be controlled adjustment and realize property regulation；
Described machine group parts include：Low-pressure gas compressor, high pressure gas compressor, waste heat boiler, steam turbine and combustion
Gas-turbine；
Described detection parameter includes：Generator end is exerted oneself PWA, gas turbine power output PGT, low-pressure gas compressor input work
Rate WLC, high pressure gas compressor power input WHC, Blast Furnace Gas Quality flow Gg, BFG volume flows Lg, BFG low heat valves
QL, BFG equivalent molal weight MBFG, enthalpy i under BFG feed air temperaturesFA, low-pressure gas Compressor Inlet Temperature T2, low pressure coal
Air compressor outlet temperature T3, high pressure gas Compressor Inlet Temperature T4, high pressure gas compressor exit temperature T5, low-pressure gas
Compressor Inlet Pressure p2, low-pressure gas compressor delivery pressure p3, high pressure gas Compressor Inlet Pressure p4With high pressure coal air pressure
Contracting machine outlet pressure p5；
The efficiency of described gas turbine
The efficiency of described low-pressure gas compressor
The efficiency of described high pressure gas compressor
The efficiency eta of described steam turbineST=-0.02631PWA+67.61；
The overall coal consumption of described unit
The contribution degree b of described low-pressure gas compressorCL=-1.165 ηCL+ 0.1549, wherein：ηCLFor low-pressure gas compressor
Efficiency；
The contribution degree b of described high pressure gas compressorCH=-0.7632 ηCH+ 0.0928, wherein：ηCHFor high pressure gas compressor
Efficiency；
The contribution degree b of described steam turbineST=-1.3035 ηST+ 0.482, wherein：ηSTFor the efficiency of steam turbine；
The contribution degree b of described waste heat boilerHR=2.234 (Tpy- 150)/1.5+0.2381, wherein：TpyFor the row of waste heat boiler
Cigarette temperature.
2. a kind of system for realizing any of the above-described claim methods described, it is characterised in that including：Measurement module, performance meter
Module and control module are calculated, wherein：Measurement module is connected to obtain detection parameter and be sent to performance with each machine group parts calculates mould
Block, performance calculating module calculates the overall coal consumption of unit to obtain the contribution degree of each machine group parts, and control module receives each unit portion
The contribution degree of part is simultaneously controlled adjustment to the maximum machine group parts of contribution degree.
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| CN201610788490.5A CN106382133B (en) | 2016-08-31 | 2016-08-31 | Pure burning blast-furnace gas combustion and steam unit property regulation method and its system |
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|---|---|---|---|
| CN201610788490.5A CN106382133B (en) | 2016-08-31 | 2016-08-31 | Pure burning blast-furnace gas combustion and steam unit property regulation method and its system |
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|---|---|
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| CN106382133B true CN106382133B (en) | 2017-10-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181482A (en) * | 1991-12-13 | 1993-01-26 | Stone & Webster Engineering Corp. | Sootblowing advisor and automation system |
| CN102495607A (en) * | 2011-12-19 | 2012-06-13 | 武汉大学 | Fossil power unit on-line performance monitoring method on basis of Symphony system |
| CN104048313A (en) * | 2013-03-12 | 2014-09-17 | 株式会社日立制作所 | Variable Heat/power Ratio Cogeneration System |
| CN105091944A (en) * | 2015-08-20 | 2015-11-25 | 国家电网公司 | Thermal power plant set coal-fired calorific value and coal consumption rate index online monitoring method |
| CN105303032A (en) * | 2015-09-21 | 2016-02-03 | 华北电力科学研究院有限责任公司 | Analysis method for objective factor affecting generator set energy efficiency |
-
2016
- 2016-08-31 CN CN201610788490.5A patent/CN106382133B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181482A (en) * | 1991-12-13 | 1993-01-26 | Stone & Webster Engineering Corp. | Sootblowing advisor and automation system |
| CN102495607A (en) * | 2011-12-19 | 2012-06-13 | 武汉大学 | Fossil power unit on-line performance monitoring method on basis of Symphony system |
| CN104048313A (en) * | 2013-03-12 | 2014-09-17 | 株式会社日立制作所 | Variable Heat/power Ratio Cogeneration System |
| CN105091944A (en) * | 2015-08-20 | 2015-11-25 | 国家电网公司 | Thermal power plant set coal-fired calorific value and coal consumption rate index online monitoring method |
| CN105303032A (en) * | 2015-09-21 | 2016-02-03 | 华北电力科学研究院有限责任公司 | Analysis method for objective factor affecting generator set energy efficiency |
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| CN106382133A (en) | 2017-02-08 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170203 Address after: 200240 Dongchuan Road, Shanghai, No. 800, No. Applicant after: SHANGHAI JIAO TONG University Applicant after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Applicant before: Shanghai Jiao Tong University |
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Granted publication date: 20171003 Termination date: 20210831 |