CN106339585B - A kind of Thermal generation unit carbon intensity appraisal procedure - Google Patents
A kind of Thermal generation unit carbon intensity appraisal procedure Download PDFInfo
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Abstract
The present invention relates to a kind of Thermal generation unit carbon intensity appraisal procedures.Step of the invention is as follows: according to Thermal generation unit CO2Total emission volumn, power supply volume, heating load, the coal consumption of heat supply mark and various bores coal consumption of power supply, obtain corresponding calculating power supply CO2It discharges intensity and calculates heat supply CO2Discharge intensity；According to unit raw coal total amount consumed, calculate power supply CO2It discharges intensity and calculates heat supply CO2Intensity is discharged, obtains calculating power supply raw coal amount；According to unit raw coal annual net calorific value as received basis and power supply raw coal amount is calculated, obtains calculating power supply mark coal amount；According to power supply volume and power supply mark coal amount is calculated, obtains check coal consumption of power supply；Obtain true coal consumption of power supply；Calculating power supply CO corresponding with true coal consumption of power supply2It discharges intensity and calculates heat supply CO2Intensity is discharged, as really power supply CO2Discharge intensity and true heat supply CO2Discharge intensity.The present invention is reduced with coal consumption of power supply is checked and is calculated deviation.
Description
Technical field
The invention belongs to carbon emission calculating fields, are related to a kind of Thermal generation unit carbon intensity appraisal procedure.
Background technique
China's electric power and heating power production account for about coal-fired CO at present240% or so of total emission volumn, with domestic carbon transaction market
Gradually foundation, the calculation of carbon emission quota becomes the important foundation stone for improving carbon market construction and each enterprise is measured
The key element of itself carbon emission level.In the model regions in carbon transaction market, fossil power plant carbon emission quota is usually
Using the carbon intensity of facility level as calculation basis, i.e., according to the power supply CO of every Thermal generation unit2Discharge intensity (tCO2/
) and heat supply CO MWh2Discharge intensity (tCO2/ GJ) carry out carbon emission quota granting.The definition of the two is respectively as follows:
As unit CO2When total emission volumn, power supply volume, heating load have determined that, power CO2Discharge intensity and heat supply CO2Discharge is strong
Degree is only related with the coal consumption of power supply of unit and heat supply mark coal consumption.But in fact, since electricity power enterprise is calculating coal consumption of power supply
The different mode of several sets of Shi Caiyong and bore, cause coal consumption of power supply different, final to influence power supply CO2Discharge intensity and confession
Hot CO2Discharge the calculated result of intensity.Such as certain 300MW unit, annual related data are as shown in the table:
As can be seen from the above table, the coal consumption of power supply of 3 kinds of different bores has obtained different power supply CO2Discharge intensity and confession
Hot CO2Discharge intensity.With the CO that powers2It discharges intensity and differs 0.001tCO2/ MWh, market CO240 yuan/tCO of price2It calculates, the machine
The power supply CO of group current year2Discharge costs differ about 7.4 ten thousand yuan.
Although there are also being on 03 16th, 2016 about carbon intensity appraisal procedure, such as publication date, Publication No.
In the Chinese patent of CN105404762A, a kind of disclosed provincial electric power carbon emission appraisal procedure based on consumption perspective, still
The appraisal procedure is not suitable for assessing Thermal generation unit carbon intensity.
Summary of the invention
The present invention proposes a kind of Thermal generation unit carbon row aiming at the problem that coal consumption of power supply difference causes to calculate deviation
Strength assessment method is put, can be used for checking coal consumption of power supply, reduces and calculates deviation.
Technical solution used by the present invention solves the above problems is: the Thermal generation unit carbon intensity appraisal procedure
The characteristics of be: the step of the method, is as follows:
Step 1, according to Thermal generation unit CO2Total emission volumn, power supply volume, heating load, the coal consumption of heat supply mark and various bores
Coal consumption of power supply, obtain corresponding calculating power supply CO2It discharges intensity and calculates heat supply CO2Discharge intensity；
Step 2, according to unit raw coal total amount consumed, calculating power supply CO2It discharges intensity and calculates heat supply CO2Intensity is discharged, is obtained
Power supply raw coal amount is calculated out；
Step 3, according to unit raw coal annual net calorific value as received basis and calculating power supply raw coal amount, calculating power supply is obtained
Mark coal amount；
Step 4, according to power supply volume and calculating power supply mark coal amount, check coal consumption of power supply is obtained；
Step 5, the check coal consumption of power supply average value that various bore coal consumption of power supply are obtained is calculated, is supplied closest to checking
The coal consumption of power supply data of electricity mark coal consumption average value are true coal consumption of power supply；Calculating corresponding with true coal consumption of power supply supplies
Electric CO2It discharges intensity and calculates heat supply CO2Intensity is discharged, as really power supply CO2Discharge intensity and true heat supply CO2Discharge is strong
Degree.
Preferably, calculating power supply CO in step 1 of the present invention2It discharges intensity and calculates heat supply CO2The calculating for discharging intensity is public
Formula is respectively as follows:
。
Preferably, calculating power supply raw coal amount in step 2 of the present invention, calculating power supply mark coal amount and step 4 lieutenant colonel in step 3
The calculation formula of core coal consumption of power supply is respectively as follows:
。
Preferably, in step 1 of the present invention, Thermal generation unit CO2The unit of total emission volumn is tCO2, the list of power supply volume
Position is MWh, and the unit of heating load is GJ, and the unit of heat supply mark coal consumption is kg/GJ, and the unit of the coal consumption of power supply of various bores is
Kg/MWh calculates power supply CO2The unit for discharging intensity is tCO2/ MWh calculates heat supply CO2The unit for discharging intensity is tCO2/GJ；
In step 2, the unit of unit raw coal total amount consumed is t, and the unit for calculating power supply raw coal amount is t；
In step 3, the unit of unit raw coal annual net calorific value as received basis is kJ/kg, calculates power supply mark coal amount
Unit is t；
In step 4, the unit for checking coal consumption of power supply is kg/MWh.
Compared with prior art, the present invention having the following advantages that and effect: can be to Thermal generation unit carbon intensity
The coal consumption of power supply of various bores is verified in calculating process, thus to power supply CO2Discharge intensity and heat supply CO2Discharge intensity
It is quantitatively evaluated, finds out most true calculated result, reduced and calculate error, be fossil power plant CO2Discharge save the cost.
Detailed description of the invention
Fig. 1 is the flow diagram of Thermal generation unit carbon intensity appraisal procedure in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment 1.
Referring to Fig. 1, the subcritical Thermal generation unit of certain 300MW, year raw coal total amount consumed is 829274t, raw coal annual
Net calorific value as received basis is 21738kJ/kg, and year power supply volume is 1797795MWh, and year heating load is 1075522GJ, year CO2Row
Putting total amount is 1700543tCO2, heat supply mark coal consumption is 41.39kg/GJ.Due to station service statistical and bore have 3 kinds
Method, the coal consumption of power supply of the unit also have 3 kinds, are respectively as follows: 311.03,314.23 and 316.87kg/MWh.
Step 1, the corresponding calculating power supply CO of 3 kinds of coal consumption of power supply institutes is obtained first2It discharges intensity and calculates heat supply
CO2Discharge intensity.By taking coal consumption of power supply 311.03kg/MWh as an example, power supply CO is calculated2It discharges intensity and calculates heat supply CO2Row
Put intensity are as follows:
。
Similar, show that coal consumption of power supply is 314.23 calculating power supply COs corresponding with 316.87kg/MWh2Discharge intensity
With calculating heat supply CO2Intensity is discharged, calculated result is as follows:
Step 2, calculating power supply raw coal amount is obtained.By taking coal consumption of power supply 311.03kg/MWh as an example,
。
Similar, show that coal consumption of power supply is that 314.23 calculating power supply raw coal amounts corresponding with 316.87kg/MWh are respectively
768695.97t and 769165.56t.
Step 3, calculating power supply mark coal amount is obtained.By taking coal consumption of power supply 311.03kg/MWh as an example,
。
Similar, show that coal consumption of power supply is that 314.23 calculating power supply mark coal amounts corresponding with 316.87kg/MWh are respectively
570167.98t and 570516.29t.
Step 4, check coal consumption of power supply is obtained.By taking coal consumption of power supply 311.03kg/MWh as an example,
。
Similar, show that coal consumption of power supply is that 314.23 check coal consumption of power supply corresponding with 316.87kg/MWh are respectively
317.15 and 317.34kg/MWh.
Step 5, when coal consumption of power supply is when 311.03~316.87kg/MWh is fluctuated (fluctuation range 5.84), check is supplied
The coal consumption of electricity mark only fluctuates (fluctuation range 0.43) in 316.91~317.34kg/MWh.It acquires and checks coal consumption of power supply average value
Are as follows:
。
By contrast, coal consumption of power supply 316.87kg/MWh most connects with coal consumption of power supply average value 317.13kg/MWh is checked
Closely.Therefore true coal consumption of power supply is 316.87kg/MWh, corresponding true power supply CO2Discharge intensity is 0.8773tCO2/
MWh, true heat supply CO2Discharge intensity is 0.1146tCO2/GJ。
Embodiment 2.
Referring to Fig. 1, the overcritical Thermal generation unit of certain 660MW, year raw coal total amount consumed is 1636999t, raw coal annual
Net calorific value as received basis is 21046kJ/kg, and year power supply volume is 3861049MWh, and year heating load is 0GJ, year CO2Total emission volumn
For 3273286tCO2, heat supply mark coal consumption is 0kg/GJ.Due to station service statistical and bore have 3 kinds of methods, the unit
Coal consumption of power supply also have 3 kinds, be respectively as follows: 305.00,306.17 and 307.32kg/MWh.
It according to step 1~step 4 method in embodiment 1, is respectively calculated, obtains following result:
Step 5, because the unit heating load is 0GJ, the check coal consumption of power supply that 3 kinds of coal consumption of power supply obtain is
304.47kg/MWh, checking coal consumption of power supply average value is 304.47kg/MWh.The true coal consumption of power supply of the unit is
305.00kg/MWh really power CO2Discharge intensity is 0.8478tCO2/ MWh, true heat supply CO2Discharging intensity is
0.00tCO2/GJ。
Embodiment 3.
Referring to Fig. 1, certain 145MW super-pressure Thermal generation unit, year raw coal total amount consumed is 310314t, raw coal annual
Net calorific value as received basis is 19485kJ/kg, and year power supply volume is 469079MWh, and year heating load is 1551205GJ, year CO2Row
Putting total amount is 573527tCO2, heat supply mark coal consumption is 40.01kg/GJ.Due to station service statistical and bore have 3 kinds of sides
Method, the coal consumption of power supply of the unit also have 3 kinds, are respectively as follows: 308.73,312.75 and 320.43kg/MWh.
It according to step 1~step 4 method in embodiment 1, is respectively calculated, obtains following result:
Step 5, it when coal consumption of power supply is in 308.73~320.43kg/MWh fluctuation (fluctuation range 11.70), checks
Coal consumption of power supply only fluctuates (fluctuation range 3.36) in 307.90~311.26kg/MWh.It is average to acquire check coal consumption of power supply
Value are as follows: 309.42kg/MWh.By contrast, coal consumption of power supply 308.73kg/MWh and check coal consumption of power supply average value
309.42kg/MWh closest.Therefore true coal consumption of power supply is 308.73kg/MWh, corresponding true power supply CO2Discharge is strong
Degree is 0.8559tCO2/ MWh, true heat supply CO2Discharge intensity is 0.1109tCO2/GJ。
Embodiment 4.
Referring to Fig. 1, the Thermal generation unit carbon intensity appraisal procedure in the present embodiment includes the following steps.
Step 1, according to Thermal generation unit CO2Total emission volumn (unit tCO2), power supply volume (unit MWh), heating load it is (single
Position GJ), heat supply mark coal consumption (units/kg/GJ), various bores coal consumption of power supply (units/kg/MWh), obtain corresponding calculatings confession
Electric CO2Discharge intensity (unit tCO2/ MWh) and calculating heat supply CO2Discharge intensity (unit tCO2/ GJ).
Calculate power supply CO2It discharges intensity and calculates heat supply CO2The calculation formula of discharge intensity is respectively as follows:
。
Step 2, power supply CO (unit t), is calculated according to unit raw coal total amount consumed2It discharges intensity and calculates heat supply CO2Discharge
Intensity obtains calculating power supply raw coal amount (unit t).
Calculate the calculation formula of power supply raw coal amount are as follows:
。
Step 3, it according to unit raw coal annual net calorific value as received basis (unit kJ/kg), calculating power supply raw coal amount, obtains
Power supply mark coal amount (unit t) is calculated out.
Calculate the calculation formula of power supply mark coal amount are as follows:
。
Wherein, 29307 be standard coal low heat valve, unit kJ/kg.
Step 4, it according to power supply volume, calculating power supply mark coal amount, obtains and checks coal consumption of power supply (units/kg/MWh).
Check the calculation formula of coal consumption of power supply are as follows:
。
Step 5, when coal consumption of power supply changes in a certain range, the calculated result for checking coal consumption of power supply is influenced very
It is small, the check coal consumption of power supply average value that various bore coal consumption of power supply are calculated can be found out, and power supply mark will be checked
Coal consumption average value is considered as definite value.Check coal consumption of power supply average value compared with the coal consumption of power supply of various bores, will most it connect
The nearly coal consumption of power supply data for checking coal consumption of power supply average value are considered as true coal consumption of power supply.Therefore, coal is marked with true power supply
Consume corresponding calculating power supply CO2It discharges intensity and calculates heat supply CO2Intensity is discharged, as really power supply CO2Discharge intensity and true
Heat supply CO2Discharge intensity.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (3)
1. a kind of Thermal generation unit carbon intensity appraisal procedure, it is characterised in that: the step of the method is as follows:
Step 1, according to Thermal generation unit CO2Total emission volumn, power supply volume, heating load, the coal consumption of heat supply mark and various bores power supply
Coal consumption is marked, obtains corresponding calculating power supply CO2It discharges intensity and calculates heat supply CO2Discharge intensity；
Step 2, according to unit raw coal total amount consumed, calculating power supply CO2It discharges intensity and calculates heat supply CO2Intensity is discharged, obtains meter
Calculate power supply raw coal amount；
Step 3, according to unit raw coal annual net calorific value as received basis and calculating power supply raw coal amount, calculating power supply mark coal is obtained
Amount；
Step 4, according to power supply volume and calculating power supply mark coal amount, check coal consumption of power supply is obtained；
Step 5, the check coal consumption of power supply average value that various bore coal consumption of power supply are obtained is calculated, is marked closest to power supply is checked
The coal consumption of power supply data of coal consumption average value are true coal consumption of power supply；Calculating power supply corresponding with true coal consumption of power supply
CO2It discharges intensity and calculates heat supply CO2Intensity is discharged, as really power supply CO2Discharge intensity and true heat supply CO2Discharge intensity；
Power supply raw coal amount is calculated in step 2, the calculating that coal consumption of power supply is checked in power supply mark coal amount and step 4 is calculated in step 3
Formula is respectively as follows:
。
2. Thermal generation unit carbon intensity appraisal procedure according to claim 1, it is characterised in that: step 1 is fallen into a trap
Calculate power supply CO2It discharges intensity and calculates heat supply CO2The calculation formula of discharge intensity is respectively as follows:
。
3. Thermal generation unit carbon intensity appraisal procedure according to claim 1, it is characterised in that:
In step 1, Thermal generation unit CO2The unit of total emission volumn is tCO2, the unit of power supply volume is MWh, the unit of heating load
For GJ, the unit of heat supply mark coal consumption is kg/GJ, and the unit of the coal consumption of power supply of various bores is kg/MWh, calculates power supply CO2Row
The unit for putting intensity is tCO2/ MWh calculates heat supply CO2The unit for discharging intensity is tCO2/GJ；
In step 2, the unit of unit raw coal total amount consumed is t, and the unit for calculating power supply raw coal amount is t；
In step 3, the unit of unit raw coal annual net calorific value as received basis is kJ/kg, calculates the unit of power supply mark coal amount
For t；
In step 4, the unit for checking coal consumption of power supply is kg/MWh.
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| CN108280047A (en) * | 2018-01-24 | 2018-07-13 | 江苏方天电力技术有限公司 | A kind of fired power generating unit carbon emission accounting method based on field monitoring data |
| CN109655489B (en) * | 2019-01-23 | 2021-08-13 | 国电科学技术研究院有限公司 | Method and device for metering standard coal consumption of coal-fired unit |
| CN113592134B (en) * | 2021-06-15 | 2023-09-26 | 国网浙江省电力有限公司 | Electric power carbon emission evaluation system and method based on energy data |
| CN115034454A (en) * | 2022-05-25 | 2022-09-09 | 北京电链科技有限公司 | Method and device for predicting carbon emission based on electric quantity data |
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