CN105046064A - Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period - Google Patents

Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period Download PDF

Info

Publication number
CN105046064A
CN105046064A CN201510377148.1A CN201510377148A CN105046064A CN 105046064 A CN105046064 A CN 105046064A CN 201510377148 A CN201510377148 A CN 201510377148A CN 105046064 A CN105046064 A CN 105046064A
Authority
CN
China
Prior art keywords
heating
steam
unit
equivalent heat
heat drop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510377148.1A
Other languages
Chinese (zh)
Inventor
王建
张宇
周连升
张利
甘智勇
屈斌
王梓越
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Tianjin Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510377148.1A priority Critical patent/CN105046064A/en
Publication of CN105046064A publication Critical patent/CN105046064A/en
Pending legal-status Critical Current

Links

Landscapes

  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention relates to a calculation method for an electric load adjustable range of a heat and power cogeneration unit in a heating period. The method comprises the steps of: (1) carrying out statistical processing on heating data in the heating period of the unit; (2) calculating a new steam equivalent heat drop and a heating steam extraction equivalent heat drop of a steam turbine by using an equivalent heat drop theory; (3) according to the equivalent heat drop theory, obtaining a relation equation of generated power of the unit, main steam flow and heating steam extraction flow; (4) carrying out calculation on the generated power of the unit according to the relation equation in the step (3); and (5) obtaining power generation loads of the heating unit under different heating loads. According to the method, the equivalent heat drop value can be calculated accurately and effectively, the relation among the generated power of the unit, the main steam flow and the heating steam extraction flow is obtained, furthermore the power generation loads of the heating unit under the different heating loads are obtained, and finally the electric load adjustable range of the heating unit is obtained. The method not only benefits power and energy balance of areas but also can significantly improve economic efficiency of system operation.

Description

A kind of computing method of heat supply phase cogeneration units electric load adjustable extent
Technical field
The invention belongs to cogeneration units electric load peak modulation capacity technical field, particularly a kind of computing method of heat supply phase cogeneration units electric load adjustable extent.
Background technology
Cogeneration units in the winter time heating period electricity determining by heat when, peak modulation capacity just declines thereupon, Appropriate application cogeneration units electric load peak modulation capacity, not only be conducive to completing regional balance of electric power and ener when installed capacity is limited, Effective Regulation interconnection, also can significantly improve the business efficiency of Utilities Electric Co.'s system cloud gray model and operation.At present, not for cogeneration units electric load peak modulation capacity field comparative maturity and the computing method of heat supply phase cogeneration units electric load adjustable extent that can be applied to engineering field.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of computing method of heat supply phase cogeneration units electric load adjustable extent.
The present invention solves its technical matters and takes following technical scheme to realize:
Computing method for heat supply phase cogeneration units electric load adjustable extent, comprise step as follows:
(1) sorting-out in statistics is carried out to the dsc data that supplies of unit heat supply phase: be specially:
Carried out acquisition and recording by test to for dsc data and arrange, wherein measuring point comprises: unit load, main steam temperature, main steam pressure, main steam flow, heating extraction flow, intermediate pressure cylinder steam discharge are to low pressure (LP) cylinder valve opening, intermediate pressure cylinder exhaust steam pressure, intermediate pressure cylinder exhaust temperature;
(2) utilize equivalent heat drop theory, steam turbine initial steam equivalent heat drop and heating equivalent heat drop of drawing gas calculated:
1. the computing method of steam turbine initial steam equivalent heat drop
The equivalent heat drop H of initial steam 0, represent the actual work done of 1kg initial steam.We can by the unit efficiency of steam turbine, i.e. actual cycle efficiency eta i; The circulated heat Q (kJ/kg) that device adds; And equivalent heat drop H 0relation between three obtains the equivalent heat drop H of initial steam m.
η i = H 0 Q
Meanwhile, at the heat consumption rate HR of known steam-turbine plant t, the unit efficiency of steam turbine can be obtained.
η i = 3600 HR t
Therefore, the equivalent heat drop of initial steam also can be expressed as:
H 0 = 3600 HR t × Q
2. heating is drawn gas the computing method of equivalent heat drop:
Draw gas equivalent heat drop H j, represent the added value of work done of drawing gas in the exclusion of 1kg in minimizing situation of drawing gas, otherwise, when the amount of drawing gas increases, then represent the reduced value of work done.For the steam turbine of regenerative steam, its equivalent heat drop H that draws gas jthe rule of computing formula is the enthalpy drop (h drawn gas from exclusion 1kg j-h n) in deduct some frozen composition, its formula can be expressed as:
H j = ( h j - h 0 ) - Σ r = 1 j - 1 A r q r H r = ( h j - h 0 ) - Σ r = 1 j - 1 η r A r
In formula: A rif-j is collective-type well heater, get τ r; If be hydrophobic formula well heater of releasing, get γ r;
J-well heater subscript numbering;
η-efficiency of drawing gas;
Power extraction opening subscript at low pressure after r-well heater j;
τ-well heater feedwater temperature rise, kJ/kg;
The heat that q-heating steam discharges in well heater, kJ/kg;
H-heating steam enthalpy, kJ/kg;
H n-steam turbine last stage exhaust enthalpy.
Therefore draw, if extract 1kg heating steam out from five sections draw gas (heating sections of drawing gas: be generally five sections and draw gas), to draw gas costing bio disturbance power loss by 1kg, its equivalent heat drop:
H C N = Σ j = 1 4 τ j η j - ( h 4 - h n )
In formula: h 4the steam enthalpy of-heating section of drawing gas, kJ/kg.
Calculating, some the relevant intermediate computations formula drawn gas in equivalent heat drop are as follows:
To draw gas efficiency: η j = H j q j ;
Well heater feedwater temperature rise: τ j=t j-t j-1;
The thermal discharge of heating steam in well heater: q j=h j-t sj;
Hydrophobic thermal discharge in the heater: γ j=t s (j+1)-t sj.
(3), according to equivalent heat drop theory, obtain the governing equation of unit generation power and main steam flow and heating extraction flow:
In the equivalent heat drop of known steam turbine initial steam, and after the heating equivalent heat drop of drawing gas, namely calculate the generated output of unit by relation between the two.
Application equivalent heat drop theory sets up following equation:
N = G 0 × H 0 - G C N × H C N 3600
In formula: N-unit generation power, kW;
G 0-unit main steam flow, kg/h;
H 0under-unit pure condensate operating mode, the actual acting of 1kg initial steam, i.e. equivalent heat drop, kJ/kg;
G cN-unit heating extraction flow, kg/h;
H cNunder-unit heating operating mode, the actual acting that 1kg heating is drawn gas, i.e. equivalent heat drop, kJ/kg.
According to step (3) in relational expression unit generation power is calculated;
As can be seen from step (3) middle equation, thermal power plant unit supplies thermal condition in the winter time, under guaranteeing the condition of heating demand, namely ensures heating extraction flow G cNnecessarily, by changing main steam flow, different unit generation acc powers can be obtained, the high and low limit value of thermal power plant unit corresponding electric load under certain heating extraction flow can be calculated.
(5) draw the generation load of thermal power plant unit under different heating demand.
The high and low limit value of electric load corresponding under (4) calculating different heating extraction flow by step, and carry out sorting-out in statistics, the adjustable extent of thermal power plant unit electric load can be obtained.
And, described step (4) according to step (3) in relational expression unit generation power is calculated, be specially: ensure heating extraction flow G cNnecessarily, by changing main steam flow, different unit generation acc powers can be obtained, the high and low limit value of thermal power plant unit corresponding electric load under certain heating extraction flow can be calculated.
Advantage of the present invention and good effect are:
1, the present invention is directed to heat supply phase cogeneration units, the method is according to equivalent heat drop theory, equivalent heat drop value can be calculated accurate and effective, obtain the relation of unit generation power and main steam flow and heating extraction flow, and then draw the generation load of thermal power plant unit under different heating demand, finally draw thermal power plant unit electric load adjustable extent.
2, the method is not only conducive to completing regional balance of electric power and ener when installed capacity is limited, also can significantly improve the business efficiency of Utilities Electric Co.'s system cloud gray model and operation.
Embodiment
Be further described the invention process below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Computing method for heat supply phase cogeneration units electric load adjustable extent, it is as follows that the method comprising the steps of:
(1) sorting-out in statistics is carried out to the dsc data that supplies of unit heat supply phase: be specially:
Carried out acquisition and recording by test to for dsc data and arrange, wherein measuring point comprises: unit load, main steam temperature, main steam pressure, main steam flow, heating extraction flow, intermediate pressure cylinder steam discharge are to low pressure (LP) cylinder valve opening, intermediate pressure cylinder exhaust steam pressure, intermediate pressure cylinder exhaust temperature;
(2) utilize equivalent heat drop theory, steam turbine initial steam equivalent heat drop and heating equivalent heat drop of drawing gas calculated:
1. the computing method of steam turbine initial steam equivalent heat drop
The equivalent heat drop H of initial steam 0, represent the actual work done of 1kg initial steam.We can by the unit efficiency of steam turbine, i.e. actual cycle efficiency eta i; The circulated heat Q (kJ/kg) that device adds; And equivalent heat drop H 0relation between three obtains the equivalent heat drop H of initial steam m.
η i = H 0 Q
Meanwhile, at the heat consumption rate HR of known steam-turbine plant t, the unit efficiency of steam turbine can be obtained.
η i = 3600 HR t
Therefore, the equivalent heat drop of initial steam also can be expressed as:
H 0 = 3600 HR t × Q
2. heating is drawn gas the computing method of equivalent heat drop:
Draw gas equivalent heat drop H j, represent the added value of work done of drawing gas in the exclusion of 1kg in minimizing situation of drawing gas, otherwise, when the amount of drawing gas increases, then represent the reduced value of work done.For the steam turbine of regenerative steam, its equivalent heat drop H that draws gas jthe rule of computing formula is the enthalpy drop (h drawn gas from exclusion 1kg j-h n) in deduct some frozen composition, its formula can be expressed as:
H j = ( h j - h 0 ) - Σ r = 1 j - 1 A r q r H r = ( h j - h 0 ) - Σ r = 1 j - 1 η r A r
In formula: A rif-j is collective-type well heater, get τ r; If be hydrophobic formula well heater of releasing, get γ r;
J-well heater subscript numbering;
η-efficiency of drawing gas;
Power extraction opening subscript at low pressure after r-well heater j;
τ-well heater feedwater temperature rise, kJ/kg;
The heat that q-heating steam discharges in well heater, kJ/kg;
H-heating steam enthalpy, kJ/kg;
H n-steam turbine last stage exhaust enthalpy.
Therefore draw, if extract 1kg heating steam out from five sections draw gas (heating sections of drawing gas: be generally five sections and draw gas), to draw gas costing bio disturbance power loss by 1kg, its equivalent heat drop:
H C N = Σ j = 1 4 τ j η j - ( h 4 - h n )
In formula: h 4the steam enthalpy of-heating section of drawing gas, kJ/kg.
Calculating, some the relevant intermediate computations formula drawn gas in equivalent heat drop are as follows:
To draw gas efficiency: η j = H j q j ;
Well heater feedwater temperature rise: τ j=t j-t j-1;
The thermal discharge of heating steam in well heater: q j=h j-t sj;
Hydrophobic thermal discharge in the heater: γ j=t s (j+1)-t sj.
(3), according to equivalent heat drop theory, obtain the governing equation of unit generation power and main steam flow and heating extraction flow:
In the equivalent heat drop of known steam turbine initial steam, and after the heating equivalent heat drop of drawing gas, namely calculate the generated output of unit by relation between the two.
Application equivalent heat drop theory sets up following equation:
N = G 0 × H 0 - G C N × H C N 3600
In formula: N-unit generation power, kW;
G 0-unit main steam flow, kg/h;
H 0under-unit pure condensate operating mode, the actual acting of 1kg initial steam, i.e. equivalent heat drop, kJ/kg;
G cN-unit heating extraction flow, kg/h;
H cNunder-unit heating operating mode, the actual acting that 1kg heating is drawn gas, i.e. equivalent heat drop, kJ/kg.
According to step (3) in relational expression unit generation power is calculated;
As can be seen from step (3) middle equation, thermal power plant unit supplies thermal condition in the winter time, under guaranteeing the condition of heating demand, namely ensures heating extraction flow G cNnecessarily, by changing main steam flow, different unit generation acc powers can be obtained, the high and low limit value of thermal power plant unit corresponding electric load under certain heating extraction flow can be calculated.
(5) draw the generation load of thermal power plant unit under different heating demand.
The high and low limit value of electric load corresponding under (4) calculating different heating extraction flow by step, and carry out sorting-out in statistics, the adjustable extent of thermal power plant unit electric load can be obtained.

Claims (2)

1. computing method for heat supply phase cogeneration units electric load adjustable extent, is characterized in that comprising step as follows:
(1) sorting-out in statistics is carried out to the dsc data that supplies of unit heat supply phase: be specially:
Carried out acquisition and recording by test to for dsc data and arrange, wherein measuring point comprises: unit load, main steam temperature, main steam pressure, main steam flow, heating extraction flow, intermediate pressure cylinder steam discharge are to low pressure (LP) cylinder valve opening, intermediate pressure cylinder exhaust steam pressure, intermediate pressure cylinder exhaust temperature;
(2) utilize equivalent heat drop theory, steam turbine initial steam equivalent heat drop and heating equivalent heat drop of drawing gas calculated:
1. the computing method of steam turbine initial steam equivalent heat drop
The equivalent heat drop H of initial steam 0, represent the actual work done of 1kg initial steam.We can by the unit efficiency of steam turbine, i.e. actual cycle efficiency eta i; The circulated heat Q (kJ/kg) that device adds; And equivalent heat drop H 0relation between three obtains the equivalent heat drop H of initial steam m;
η i = H 0 Q
Meanwhile, at the heat consumption rate HR of known steam-turbine plant t, the unit efficiency of steam turbine can be obtained;
η i = 3600 HR t
Therefore, the equivalent heat drop of initial steam also can be expressed as:
H 0 = 3600 HR t × Q
2. heating is drawn gas the computing method of equivalent heat drop:
Draw gas equivalent heat drop H j, represent the added value of work done of drawing gas in the exclusion of 1kg in minimizing situation of drawing gas, otherwise, when the amount of drawing gas increases, then represent the reduced value of work done.For the steam turbine of regenerative steam, its equivalent heat drop H that draws gas jthe rule of computing formula is the enthalpy drop (h drawn gas from exclusion 1kg j-h n) in deduct some frozen composition, its formula can be expressed as:
H j = ( h j - h 0 ) - Σ r = 1 j - 1 A r q r H r = ( h j - h 0 ) - Σ r = 1 j - 1 η r A r
In formula: A rif-j is collective-type well heater, get τ r; If be hydrophobic formula well heater of releasing, get γ r;
J-well heater subscript numbering;
η-efficiency of drawing gas;
Power extraction opening subscript at low pressure after r-well heater j;
τ-well heater feedwater temperature rise, kJ/kg;
The heat that q-heating steam discharges in well heater, kJ/kg;
H-heating steam enthalpy, kJ/kg;
H n-steam turbine last stage exhaust enthalpy;
Therefore draw, if extract 1kg heating steam out from five sections draw gas (heating sections of drawing gas: be generally five sections and draw gas), to draw gas costing bio disturbance power loss by 1kg, its equivalent heat drop:
H C N = Σ j = 1 4 τ j η j - ( h 4 - h n )
In formula: h 4the steam enthalpy of-heating section of drawing gas, kJ/kg;
Calculating, some the relevant intermediate computations formula drawn gas in equivalent heat drop are as follows:
To draw gas efficiency: η j = H j q j ;
Well heater feedwater temperature rise: τ j=t j-t j-1;
The thermal discharge of heating steam in well heater: q j=h j-t sj;
Hydrophobic thermal discharge in the heater: γ j=t s (j+1)-t sj;
(3), according to equivalent heat drop theory, obtain the governing equation of unit generation power and main steam flow and heating extraction flow:
In the equivalent heat drop of known steam turbine initial steam, and after the heating equivalent heat drop of drawing gas, namely calculate the generated output of unit by relation between the two,
Application equivalent heat drop theory sets up following equation:
N = G 0 × H 0 - G C N × H C N 3600
In formula: N-unit generation power, kW;
G 0-unit main steam flow, kg/h;
H 0under-unit pure condensate operating mode, the actual acting of 1kg initial steam, i.e. equivalent heat drop, kJ/kg;
G cN-unit heating extraction flow, kg/h;
H cNunder-unit heating operating mode, the actual acting that 1kg heating is drawn gas, i.e. equivalent heat drop, kJ/kg;
According to step (3) in relational expression unit generation power is calculated;
As can be seen from step (3) middle equation, thermal power plant unit supplies thermal condition in the winter time, under guaranteeing the condition of heating demand, namely ensures heating extraction flow G cNnecessarily, by changing main steam flow, different unit generation acc powers can be obtained, the high and low limit value of thermal power plant unit corresponding electric load under certain heating extraction flow can be calculated;
(5) draw the generation load of thermal power plant unit under different heating demand;
The high and low limit value of electric load corresponding under (4) calculating different heating extraction flow by step, and carry out sorting-out in statistics, the adjustable extent of thermal power plant unit electric load can be obtained.
2. the computing method of heat supply phase cogeneration units electric load adjustable extent according to claim 1, it is characterized in that: described step (4) according to step (3) in relational expression unit generation power is calculated, be specially: ensure heating extraction flow G cNnecessarily, by changing main steam flow, different unit generation acc powers can be obtained, the high and low limit value of thermal power plant unit corresponding electric load under certain heating extraction flow can be calculated.
CN201510377148.1A 2015-07-01 2015-07-01 Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period Pending CN105046064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510377148.1A CN105046064A (en) 2015-07-01 2015-07-01 Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510377148.1A CN105046064A (en) 2015-07-01 2015-07-01 Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period

Publications (1)

Publication Number Publication Date
CN105046064A true CN105046064A (en) 2015-11-11

Family

ID=54452604

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510377148.1A Pending CN105046064A (en) 2015-07-01 2015-07-01 Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period

Country Status (1)

Country Link
CN (1) CN105046064A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106096310A (en) * 2016-06-27 2016-11-09 国网山西省电力公司电力科学研究院 A kind of steam extraction heat supply unit is for thermal condition performance calculation method
CN108319131A (en) * 2017-12-27 2018-07-24 国网山东省电力公司电力科学研究院 Peak load regulation capability assessment method based on data mining
CN109063890A (en) * 2018-06-21 2018-12-21 国网山东省电力公司电力科学研究院 One kind being based on the maximized Load Distribution method of the full factory's peak modulation capacity of steam power plant
CN109447840A (en) * 2018-09-30 2019-03-08 国网天津市电力公司电力科学研究院 A kind of determination method of cogeneration units in heat supply period electric load adjustable extent
CN111027186A (en) * 2019-11-25 2020-04-17 山东鲁能软件技术有限公司 Performance diagnosis method and system for moisture separator reheater in running state
CN111475951A (en) * 2020-04-09 2020-07-31 国网山东省电力公司电力科学研究院 Thermoelectric unit working condition analysis method
CN111723331A (en) * 2020-06-23 2020-09-29 西安热工研究院有限公司 Equity distribution calculation method for combined cycle two-in-one unit steam turbine load
CN112070358A (en) * 2020-08-11 2020-12-11 山东电力研究院 Method and system for determining electric load adjustment interval of low-vacuum heat supply unit
CN112507534A (en) * 2020-11-25 2021-03-16 山东电力研究院 Conversion method and system for power supply coal consumption rate of cogeneration unit in heat supply period
CN113217130A (en) * 2021-03-17 2021-08-06 西安热工研究院有限公司 Deaerator and condenser hot well capacity selection method based on condensed water frequency modulation
CN113434804A (en) * 2021-06-23 2021-09-24 天津华能杨柳青热电有限责任公司 Heat supply coal consumption calculation method based on unchanged power generation coal consumption

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003016374A (en) * 2001-06-28 2003-01-17 Toshiba Corp Evaluating method and drawing-up method for power generating facility plan, and program
US20120232706A1 (en) * 2010-11-10 2012-09-13 Panasonic Corporation Operation planning method, operation planning device, heat pump hot water supply system operation method, and heat pump hot water supply and heating system operation method
CN102900478A (en) * 2012-09-29 2013-01-30 华北电力大学 Novel heat supply steam turbine system and regulation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003016374A (en) * 2001-06-28 2003-01-17 Toshiba Corp Evaluating method and drawing-up method for power generating facility plan, and program
US20120232706A1 (en) * 2010-11-10 2012-09-13 Panasonic Corporation Operation planning method, operation planning device, heat pump hot water supply system operation method, and heat pump hot water supply and heating system operation method
CN102900478A (en) * 2012-09-29 2013-01-30 华北电力大学 Novel heat supply steam turbine system and regulation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
赵玉增: "天津电网供热机组调峰能力在线监测系统的研究与应用", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106096310B (en) * 2016-06-27 2019-01-11 国网山西省电力公司电力科学研究院 A kind of steam extraction heat supply unit supplying thermal condition performance calculation method
CN106096310A (en) * 2016-06-27 2016-11-09 国网山西省电力公司电力科学研究院 A kind of steam extraction heat supply unit is for thermal condition performance calculation method
CN108319131A (en) * 2017-12-27 2018-07-24 国网山东省电力公司电力科学研究院 Peak load regulation capability assessment method based on data mining
CN109063890B (en) * 2018-06-21 2020-12-15 国网山东省电力公司电力科学研究院 Thermal load distribution method based on thermal power plant whole-plant peak shaving capacity maximization
CN109063890A (en) * 2018-06-21 2018-12-21 国网山东省电力公司电力科学研究院 One kind being based on the maximized Load Distribution method of the full factory's peak modulation capacity of steam power plant
CN109447840A (en) * 2018-09-30 2019-03-08 国网天津市电力公司电力科学研究院 A kind of determination method of cogeneration units in heat supply period electric load adjustable extent
CN111027186A (en) * 2019-11-25 2020-04-17 山东鲁能软件技术有限公司 Performance diagnosis method and system for moisture separator reheater in running state
CN111027186B (en) * 2019-11-25 2023-12-01 山东鲁软数字科技有限公司 Performance diagnosis method and system for steam-water separation reheater in running state
CN111475951A (en) * 2020-04-09 2020-07-31 国网山东省电力公司电力科学研究院 Thermoelectric unit working condition analysis method
CN111723331A (en) * 2020-06-23 2020-09-29 西安热工研究院有限公司 Equity distribution calculation method for combined cycle two-in-one unit steam turbine load
CN111723331B (en) * 2020-06-23 2024-01-23 西安热工研究院有限公司 Method for calculating rights and interests distribution of load of combined cycle two-to-one unit turbine
CN112070358A (en) * 2020-08-11 2020-12-11 山东电力研究院 Method and system for determining electric load adjustment interval of low-vacuum heat supply unit
CN112507534A (en) * 2020-11-25 2021-03-16 山东电力研究院 Conversion method and system for power supply coal consumption rate of cogeneration unit in heat supply period
CN113217130A (en) * 2021-03-17 2021-08-06 西安热工研究院有限公司 Deaerator and condenser hot well capacity selection method based on condensed water frequency modulation
CN113434804A (en) * 2021-06-23 2021-09-24 天津华能杨柳青热电有限责任公司 Heat supply coal consumption calculation method based on unchanged power generation coal consumption

Similar Documents

Publication Publication Date Title
CN105046064A (en) Calculation method for electric load adjustable range of heat and power cogeneration unit in heating period
CN102967464B (en) The improved method of evaluating performance of condensing turbine high back pressure
Terzi Application of exergy analysis to energy systems
CN109538317A (en) A kind of Dynamic calculation method of the heat regenerative system that can be improved peak load regulation ability and heat regenerative system heat storage can vapor (steam) temperature
CN102661176B (en) Acquisition method of sliding pressure curve of steam turbine by using main steam flow as scheduling variable
CN103196673B (en) One determines that turbine exhaust steam in electric power plant pressure is to the sex on-the-spot measuring method of Unit Economic
Mrzljak et al. Change in steam generators main and auxiliary energy flow streams during the load increase of LNG carrier steam propulsion system
CN103942732A (en) Economic evaluation method of modification effects of heat supply technology of pure condensing steam turbine unit
CN102998122B (en) Optimal initial pressure global optimization method for steam turbine set based on multi-factor
CN111664504B (en) Method for predicting influence of turbine thermodynamic system micro-increment variable on turbine heat consumption
CN102749156B (en) Method for detecting exhaust enthalpy of turbine
Ma et al. A novel super high back pressure cascade heating scheme with multiple large-scale turbine units
CN104504458A (en) Energy saving potential analysis method for thermal power plant steam turbine
CN104732451A (en) Low-pressure economizer energy saving assessment method applied to power plant thermal system
CN103528630A (en) Method for computing high-pressure bypass steam leakage rate and high-pressure bypass attemperation water flow rate
CN106339788A (en) DCS (distributed control system)-based thermal power unit performance index calculating device and method
CN104483152B (en) The heat consumption rate assay method of non-reheat backheat combined-circulation unit
CN103983841B (en) The determination method that power is affected by the economy of cogeneration units
Polonsky et al. Annual performance of the solar hybrid STIG cycle
CN105158007B (en) A kind of coal consumption sequence test method based on leakage vapour rate of passing a bridge
CN102735449B (en) Method for detecting influence of reheated attemperating water provided by center tap of feeding pump on performance of unit
Gupta et al. Optimization of a turbine used in coal fired thermal power plants based on inlet steam temperature using thermoeconomics
CUI et al. Thermal dynamic calculation method and characteristic analysis of marine secondary circuit system under all operating conditions
Naskar et al. An energy and exergy-based performance analysis and emission control of the turbine cycle in a coal-based steam power plant
CN113666446B (en) Optimal heat source determining method and system for low-temperature multi-effect seawater desalination system coupled with coal and electricity

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20151111

RJ01 Rejection of invention patent application after publication