CN107844682A - Coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components - Google Patents
Coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components Download PDFInfo
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- 239000003034 coal gas Substances 0.000 title claims abstract description 51
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 239000000779 smoke Substances 0.000 title claims abstract description 34
- 238000000691 measurement method Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 183
- 239000003546 flue gas Substances 0.000 claims abstract description 51
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000002485 combustion reaction Methods 0.000 claims abstract description 37
- 238000004364 calculation method Methods 0.000 claims description 53
- 239000000446 fuel Substances 0.000 claims description 11
- 239000006227 byproduct Substances 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000007796 conventional method Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
A kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components, comprises the following steps：Valid data are obtained by measuring, valid data include coal gas of converter butt Lower heat value and combustion furnace smoke components, and combustion furnace smoke components include O in dry flue gas2, CO and CO2Volume content percentage；According to the valid data of acquisition, coal gas of converter combustion furnace as-fired coal gas composition is solved.It is inconvenient and difficult with inserting stove coal gas of converter composition in-line analyzer to combustion furnace operation and bringing that the present invention solves current most of steel plant, has good engineering practical value.It can be additionally used in furnace thermal efficiency performance test of burning, as long as calorific value of gas is measured by gas calorific value apparatus, smoke components are measured by flue gas analyzer, gas composition can be picked out, and then calculate and analyze for combustion furnace performance, avoid gas sampling and the chemical examination work of conventional method needs, the quick measuring and calculating for the burning furnace thermal efficiency that is particularly suitable for use in.
Description
Technical field
The invention belongs to combustion furnace field of energy-saving technology, and in particular to the coal gas of converter based on calorific value of gas and smoke components
Composition flexible measurement method.
Background technology
Iron and steel enterprise generates substantial amounts of coal gas of converter in steel making working procedure, as the by-product resource of smelting process, converter
It is one of emphasis of the energy-saving work of iron and steel enterprise that the high efficiente callback of coal gas, which utilizes,.
At present, steel mill mainly digests coal gas of converter by industrial combustion furnace (such as heater for rolling steel, gas boiler).It is right
In combustion furnace, propellant composition is important input condition, be combustion furnace operation operation and firing optimization important evidence, fuel into
The change divided influences whether safety and the economical operation of combustion furnace with fluctuation.However, due to limited conditions, part iron is looked forward at present
Industry is configured with calorific value of gas in-line analyzer, but most of iron and steel enterprises all do not configure gas composition on-line analysis to combustion furnace
Instrument, steel mill are substantially still as current gas composition taking human as setting value.And in fact, by upstream smelting procedure etc. because
The influence of element, the composition of coal gas of converter are difficult to keep stable, often in fluctuation status, be manually set value be likely to it is significantly inclined
From current actual value, this will largely disturb the operation judges of combustion furnace operations staff, influence the optimization of combustion furnace
Operation.
The content of the invention
The present invention's is directed to deficiency of the prior art, there is provided a kind of coal gas of converter based on calorific value of gas and smoke components
Composition flexible measurement method, coal gas of converter composition is picked out by calorific value of gas and smoke components, as a result can be the safety of combustion furnace
Foundation is provided with economical operation, as-fired coal gas composition in-line analyzer is not configured to solve most of steel plant's combustion furnaces at present
It is inconvenient and difficult to be brought to combustion furnace operation, has good engineering practical value.
To achieve the above object, the present invention uses following technical scheme：
A kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components, it is characterised in that including with
Lower step：
Coal gas of converter butt Lower heat value and combustion furnace smoke components are obtained by measuring；
According to coal gas of converter butt Lower heat value, theoretical dry air amount and list needed for the burning of unit of account volume dry gas
Theoretical dry flue gas amount caused by the volume dry gas burning of position；
According to reason caused by the theoretical dry air amount needed for the burning of unit volume dry gas and the burning of unit volume dry gas
The fuel characteristic factor is calculated by dry flue gas amount；
According to the fuel characteristic factor and combustion furnace smoke components, excess air coefficient is calculated；
It is theoretical according to caused by the theoretical dry air amount needed for the burning of unit volume dry gas, the burning of unit volume dry gas
Dry flue gas amount and excess air coefficient, actual dry flue gas amount caused by the burning of unit of account volume dry gas；
According to actual dry flue gas amount and combustion furnace smoke components caused by the burning of unit volume dry gas, calculate in dry gas
CO volume content percentage；
According to the volume content percentage of CO in coal gas of converter butt Lower heat value and dry gas, H2 in dry gas is calculated
Volume content percentage；
Done according to H2 volume content percentage and unit volume in CO volume content percentage, dry gas in dry gas
Theoretical dry air amount needed for gas-fired, calculate O in dry gas2Volume content percentage；
According to CO in actual dry flue gas amount, combustion furnace smoke components and dry gas caused by the burning of unit volume dry gas
Volume content percentage, calculate CO in dry gas2Volume content percentage；
According to CO, CO in dry gas2、H2、O2Volume content percentage, calculate dry gas in N2 volume content percentage
Rate.
To optimize above-mentioned technical proposal, the concrete measure taken also includes：
The combustion furnace smoke components include O in dry flue gas2, CO and CO2Volume content percentage.
Calculated by the theoretical dry air amount needed for the burning of the first calculation formula unit of account volume dry gas, described first
Formula is：
Wherein,For the theoretical dry air amount needed for the burning of unit volume dry gas, m3/m3(dry gas)；QD, netTo turn
Producer gas butt Lower heat value, kJ/m3；
By theoretical dry flue gas amount caused by the burning of the second calculation formula unit of account volume dry gas, described second calculates
Formula is：
Wherein,For theoretical dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry gas)；QD, netTo turn
Producer gas butt Lower heat value, kJ/m3；
Fuel characteristic factor χ is calculated by the 3rd calculation formula, the 3rd calculation formula is：
Wherein, χ is the fuel characteristic factor；For theoretical dry flue gas amount, m caused by the burning of unit volume dry gas3/m3
(dry gas)；For the theoretical dry air amount needed for the burning of unit volume dry gas, m3/m3(dry gas).
Excess air coefficient is calculated by the 4th calculation formula, the 4th calculation formula is：
Wherein, α is excess air coefficient；φ′(O2), φ ' (CO) be respectively O in dry flue gas2, CO volume content percentage
Rate, %.
By actual dry flue gas amount caused by the burning of the 5th calculation formula unit of account volume dry gas, the described 5th calculates
Formula is：
Wherein, VgyFor actual dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry gas)；For unit
Theoretical dry flue gas amount caused by the burning of volume dry gas, m3/m3(dry gas)；For the reason needed for the burning of unit volume dry gas
By dry air amount, m3/m3(dry gas)；α is excess air coefficient.
The volume content percentage of CO in dry gas is calculated by the 6th calculation formula, the 6th calculation formula is：
φ (CO)=2.532Vgy(21-φ′(O2))-52.367
Wherein, φ (CO) be dry gas in CO volume content percentage, %；VgyBurn and produce for unit volume dry gas
Actual dry flue gas amount, m3/m3(dry gas)；φ′(O2) it is O in dry flue gas2Volume content percentage, %.
H in dry gas is calculated by the 7th calculation formula2Volume content percentage, the 7th calculation formula is：
Wherein, φ (H2) it is H in dry gas2Volume content percentage, %；QD, netFor coal gas of converter butt low level heat
Value, kJ/m3；φ (CO) be dry gas in CO volume content percentage, %.
O in dry gas is calculated by the 8th calculation formula2Volume content percentage, the 8th calculation formula is：
Wherein, φ (O2) it is O in dry gas2Volume content percentage, %；The volume that φ (CO) is CO in dry gas contains
Measure percentage, %；φ(H2) it is H in dry gas2Volume content percentage, %；For needed for the burning of unit volume dry gas
Theoretical dry air amount, m3/m3(dry gas).
CO in dry gas is calculated by the 9th calculation formula2Volume content percentage, the 9th calculation formula is：
φ(CO2)=Vgy[φ′(CO2)+φ′(CO)]-φ(CO)
Wherein, φ (CO2), φ (CO) be respectively CO in dry gas2, CO volume content percentage, %；VgyFor unit body
Actual dry flue gas amount caused by product dry gas burning；φ′(CO2), φ ' (CO) be respectively CO in dry flue gas2, CO volume content
Percentage, %.
N in dry gas is calculated by the tenth calculation formula2Volume content percentage, the tenth calculation formula is：
φ(N2)=100- φ (CO)-φ (CO2)-φ(H2)-φ(O2)
Wherein, φ (N2)、φ(CO)、φ(CO2)、φ(H2)、φ(O2) it is respectively N in dry gas2、CO、CO2、H2、O2's
Volume content percentage, %.
The beneficial effects of the invention are as follows：
1) present invention be used for coal gas of converter combustion furnace as-fired coal gas composition hard measurement, as a result can be combustion furnace safety and
Economical operation provides foundation, solves current most of steel plant with inserting stove coal gas of converter composition in-line analyzer to combustion
It is inconvenient and difficult that burning stove operation is brought, and has good engineering practical value；
2) present invention can be additionally used in burn furnace thermal efficiency performance test, as long as by gas calorific value apparatus measure calorific value of gas,
Smoke components are measured by flue gas analyzer, you can pick out gas composition, and then calculate and analyze for combustion furnace performance, keep away
Gas sampling and the chemical examination work of conventional method needs, the quick measuring and calculating for the burning furnace thermal efficiency that is particularly suitable for use in are exempted from；
3) gas composition results of measuring of the present invention has the higher degree of accuracy and reliability, and cost is low, has well
Exploitativeness.
Brief description of the drawings
The coal gas of converter composition that Fig. 1 is the present invention calculates solution flow chart.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.
A kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as shown in Figure 1, specific bag
Include following steps：
1st, coal gas of converter butt Lower heat value Q is obtained by measuringD, netWith combustion furnace smoke components (including in dry flue gas
O2, CO and CO2Volume content percentage).
2nd, the valid data obtained according to step 1, coal gas of converter combustion furnace as-fired coal gas composition is solved, is specifically included following
Step：
2.1 pass through coal gas of converter butt Lower heat value QD, netTheoretical dry air needed for the burning of unit of account volume dry gas
AmountWith unit volume dry gas burning caused by theoretical dry flue gas amountIt is specific as follows：
1) the theoretical dry air amount needed for being burnt by the first calculation formula unit of account volume dry gasFirst calculates
Formula is：
Wherein,For the theoretical dry air amount needed for the burning of unit volume dry gas, m3/m3(dry gas)；QD, netTo turn
Producer gas butt Lower heat value, kJ/m3；
2) by theoretical dry flue gas amount caused by the burning of the second calculation formula unit of account volume dry gas, second calculates public affairs
Formula is：
Wherein,For theoretical dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry gas)；QD, netTo turn
Producer gas butt Lower heat value, kJ/m3。
2.2 calculate fuel characteristic factor χ by the 3rd calculation formula, and the 3rd calculation formula is：
Wherein, χ is the fuel characteristic factor；For theoretical dry flue gas amount, m caused by the burning of unit volume dry gas3/m3
(dry gas)；For the theoretical dry air amount needed for the burning of unit volume dry gas, m3/m3(dry gas).
2.3 calculate excess air coefficient by the 4th calculation formula, and the 4th calculation formula is：
Wherein, α is excess air coefficient；φ′(O2), φ ' (CO) be respectively O in dry flue gas2, CO volume content percentage
Rate, %.
2.4 by actual dry flue gas amount caused by the burning of the 5th calculation formula unit of account volume dry gas, and the 5th calculates
Formula is：
Wherein, VgyFor actual dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry gas)；For unit
Theoretical dry flue gas amount caused by the burning of volume dry gas, m3/m3(dry gas)；For the reason needed for the burning of unit volume dry gas
By dry air amount, m3/m3(dry gas)；α is excess air coefficient.
2.5 calculate the volume content percentage φ (CO) of CO in dry gas, the 6th calculation formula by the 6th calculation formula
For：
φ (CO)=2.532Vgy(21-φ′(O2))-52.367
Wherein, φ (CO) be dry gas in CO volume content percentage, %；VgyBurn and produce for unit volume dry gas
Actual dry flue gas amount, m3/m3(dry gas)；φ′(O2) it is O in dry flue gas2Volume content percentage, %.
2.6 calculate H in dry gas by the 7th calculation formula2Volume content percentage, the 7th calculation formula is：
Wherein, φ (H2) it is H in dry gas2Volume content percentage, %；QD, netFor coal gas of converter butt low level heat
Value, kJ/m3；φ (CO) be dry gas in CO volume content percentage, %.
2.7 calculate O in dry gas by the 8th calculation formula2Volume content percentage, the 8th calculation formula is：
Wherein, φ (O2) it is O in dry gas2Volume content percentage, %；The volume that φ (CO) is CO in dry gas contains
Measure percentage, %；φ(H2) it is H in dry gas2Volume content percentage, %；For needed for the burning of unit volume dry gas
Theoretical dry air amount, m3/m3(dry gas).
2.8 calculate CO in dry gas by the 9th calculation formula2Volume content percentage, the 9th calculation formula is：
φ(CO2)=Vgy[φ′(CO2)+φ′(CO)]-φ(CO)
Wherein, φ (CO2), φ (CO) be respectively CO in dry gas2, CO volume content percentage, %；VgyFor unit body
Actual dry flue gas amount caused by product dry gas burning；φ′(CO2), φ ' (CO) be respectively CO in dry flue gas2, CO volume content
Percentage, %.
2.9 calculate N in dry gas by the tenth calculation formula2Volume content percentage, the tenth calculation formula is：
φ(N2)=100- φ (CO)-φ (CO2)-φ(H2)-φ(O2)
Wherein, φ (N2)、φ(CO)、φ(CO2)、φ(H2)、φ(O2) it is respectively N in dry gas2、CO、CO2、H2、O2's
Volume content percentage, %.
The gas composition results of measuring of the present invention has the higher degree of accuracy and reliability, and cost is low, has well
Exploitativeness.This method be used for coal gas of converter combustion furnace as-fired coal gas composition hard measurement, as a result can be combustion furnace safety and
Economical operation provides foundation, solves current most of steel plant with inserting stove coal gas of converter composition in-line analyzer to combustion
It is inconvenient and difficult that burning stove operation is brought, and has good engineering practical value.In addition, it may also be used for combustion furnace thermal efficiency performance
Experiment, as long as measuring calorific value of gas by gas calorific value apparatus, measuring smoke components by flue gas analyzer, you can pick out coal gas
Composition, and then calculate and analyze for combustion furnace performance, gas sampling and the chemical examination work of conventional method needs are avoided, especially
Suitable for the quick measuring and calculating for the furnace thermal efficiency that burns.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, the protection of the present invention should be regarded as
Scope.
Claims (10)
1. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components, it is characterised in that including following
Step：
Coal gas of converter butt Lower heat value and combustion furnace smoke components are obtained by measuring；
According to coal gas of converter butt Lower heat value, theoretical dry air amount and unit bodies needed for the burning of unit of account volume dry gas
Theoretical dry flue gas amount caused by product dry gas burning；
It is theoretical dry according to caused by the theoretical dry air amount needed for the burning of unit volume dry gas and the burning of unit volume dry gas
Exhaust gas volumn calculates the fuel characteristic factor；
According to the fuel characteristic factor and combustion furnace smoke components, excess air coefficient is calculated；
According to theoretical dry cigarette caused by the theoretical dry air amount needed for the burning of unit volume dry gas, the burning of unit volume dry gas
Tolerance and excess air coefficient, actual dry flue gas amount caused by the burning of unit of account volume dry gas；
According to actual dry flue gas amount and combustion furnace smoke components caused by the burning of unit volume dry gas, CO in dry gas is calculated
Volume content percentage；
According to the volume content percentage of CO in coal gas of converter butt Lower heat value and dry gas, the volume of H2 in dry gas is calculated
Percent content；
According to the volume content percentage and unit volume dry gas of H2 in CO volume content percentage, dry gas in dry gas
Theoretical dry air amount needed for burning, calculate O in dry gas2Volume content percentage；
According to the volume of CO in actual dry flue gas amount, combustion furnace smoke components and dry gas caused by the burning of unit volume dry gas
Percent content, calculate CO in dry gas2Volume content percentage；
According to CO, CO in dry gas2、H2、O2Volume content percentage, calculate dry gas in N2 volume content percentage.
2. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 1, its
It is characterised by：The combustion furnace smoke components include O in dry flue gas2, CO and CO2Volume content percentage.
3. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 2, its
It is characterised by：
Pass through the theoretical dry air amount needed for the burning of the first calculation formula unit of account volume dry gas, first calculation formula
For：
<mrow>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>k</mi>
</mrow>
<mn>0</mn>
</msubsup>
<mo>=</mo>
<mn>1.884</mn>
<mo>&times;</mo>
<msup>
<mn>10</mn>
<mrow>
<mo>-</mo>
<mn>4</mn>
</mrow>
</msup>
<msub>
<mi>Q</mi>
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<mi>d</mi>
<mo>,</mo>
<mi>n</mi>
<mi>e</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>-</mo>
<mn>0.02</mn>
</mrow>
Wherein,For the theoretical dry air amount needed for the burning of unit volume dry gas, m3/m3(dry gas)；QD, netFor converter coal
Gas butt Lower heat value, kJ/m3；
Pass through theoretical dry flue gas amount, second calculation formula caused by the burning of the second calculation formula unit of account volume dry gas
For：
<mrow>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>y</mi>
</mrow>
<mn>0</mn>
</msubsup>
<mo>=</mo>
<mn>1.489</mn>
<mo>&times;</mo>
<msup>
<mn>10</mn>
<mrow>
<mo>-</mo>
<mn>4</mn>
</mrow>
</msup>
<msub>
<mi>Q</mi>
<mrow>
<mi>d</mi>
<mo>,</mo>
<mi>n</mi>
<mi>e</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>+</mo>
<mn>0.969</mn>
</mrow>
Wherein,For theoretical dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry gas)；QD, netFor converter coal
Gas butt Lower heat value, kJ/m3；
Fuel characteristic factor χ is calculated by the 3rd calculation formula, the 3rd calculation formula is：
<mrow>
<mi>&chi;</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>y</mi>
</mrow>
<mn>0</mn>
</msubsup>
<mo>-</mo>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>k</mi>
</mrow>
<mn>0</mn>
</msubsup>
</mrow>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>k</mi>
</mrow>
<mn>0</mn>
</msubsup>
</mfrac>
</mrow>
Wherein, χ is the fuel characteristic factor；For theoretical dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry coal
Gas)；For the theoretical dry air amount needed for the burning of unit volume dry gas, m3/m3(dry gas).
4. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 3, its
It is characterised by：Excess air coefficient is calculated by the 4th calculation formula, the 4th calculation formula is：
<mrow>
<mi>&alpha;</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>21</mn>
<mo>+</mo>
<mi>&chi;</mi>
<mo>&lsqb;</mo>
<msup>
<mi>&phi;</mi>
<mo>&prime;</mo>
</msup>
<mrow>
<mo>(</mo>
<msub>
<mi>O</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>-</mo>
<mn>0.5</mn>
<msup>
<mi>&phi;</mi>
<mo>&prime;</mo>
</msup>
<mrow>
<mo>(</mo>
<mi>C</mi>
<mi>O</mi>
<mo>)</mo>
</mrow>
<mo>&rsqb;</mo>
</mrow>
<mrow>
<mn>21</mn>
<mo>-</mo>
<mo>&lsqb;</mo>
<msup>
<mi>&phi;</mi>
<mo>&prime;</mo>
</msup>
<mrow>
<mo>(</mo>
<msub>
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<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>-</mo>
<mn>0.5</mn>
<msup>
<mi>&phi;</mi>
<mo>&prime;</mo>
</msup>
<mrow>
<mo>(</mo>
<mi>C</mi>
<mi>O</mi>
<mo>)</mo>
</mrow>
<mo>&rsqb;</mo>
</mrow>
</mfrac>
</mrow>
Wherein, α is excess air coefficient；φ′(O2), φ ' (CO) be respectively O in dry flue gas2, CO volume content percentage
Rate, %.
5. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 4, its
It is characterised by：By actual dry flue gas amount caused by the burning of the 5th calculation formula unit of account volume dry gas, the 5th meter
Calculating formula is：
<mrow>
<msub>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>y</mi>
</mrow>
</msub>
<mo>=</mo>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>y</mi>
</mrow>
<mn>0</mn>
</msubsup>
<mo>+</mo>
<mrow>
<mo>(</mo>
<mi>&alpha;</mi>
<mo>-</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>k</mi>
</mrow>
<mn>0</mn>
</msubsup>
</mrow>
Wherein, VgyFor actual dry flue gas amount, m caused by the burning of unit volume dry gas3/m3(dry gas)；For unit volume
Theoretical dry flue gas amount caused by dry gas burning, m3/m3(dry gas)；Done for the theory needed for the burning of unit volume dry gas
Air capacity, m3/m3(dry gas)；α is excess air coefficient.
6. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 5, its
It is characterised by：The volume content percentage of CO in dry gas is calculated by the 6th calculation formula, the 6th calculation formula is：
φ (CO)=2.532Vgy(21-φ′(O2))-52.367
Wherein, φ (CO) be dry gas in CO volume content percentage, %；VgyFor reality caused by the burning of unit volume dry gas
Border dry flue gas amount, m3/m3(dry gas)；φ′(O2) it is O in dry flue gas2Volume content percentage, %.
7. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 6, its
It is characterised by：The volume content percentage of H2 in dry gas is calculated by the 7th calculation formula, the 7th calculation formula is：
<mrow>
<mi>&phi;</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>H</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>Q</mi>
<mrow>
<mi>d</mi>
<mo>,</mo>
<mi>n</mi>
<mi>e</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>-</mo>
<mn>12636</mn>
<mi>&phi;</mi>
<mrow>
<mo>(</mo>
<mi>C</mi>
<mi>O</mi>
<mo>)</mo>
</mrow>
</mrow>
<mn>10794</mn>
</mfrac>
</mrow>
Wherein, φ (H2) it is H in dry gas2Volume content percentage, %；QD, netFor coal gas of converter butt Lower heat value, kJ/
m3；φ (CO) be dry gas in CO volume content percentage, %.
8. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 7, its
It is characterised by：O in dry gas is calculated by the 8th calculation formula2Volume content percentage, the 8th calculation formula is：
<mrow>
<mi>&phi;</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>O</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mn>0.5</mn>
<mi>&phi;</mi>
<mrow>
<mo>(</mo>
<mi>C</mi>
<mi>O</mi>
<mo>)</mo>
</mrow>
<mo>+</mo>
<mn>0.5</mn>
<mi>&phi;</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>H</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>-</mo>
<mn>21</mn>
<msubsup>
<mi>V</mi>
<mrow>
<mi>g</mi>
<mi>k</mi>
</mrow>
<mn>0</mn>
</msubsup>
</mrow>
Wherein, φ (O2) it is O in dry gas2Volume content percentage, %；φ (CO) is the volume content hundred of CO in dry gas
Divide rate, %；φ(H2) it is H in dry gas2Volume content percentage, %；For the reason needed for the burning of unit volume dry gas
By dry air amount, m3/m3(dry gas).
9. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 8, its
It is characterised by：CO in dry gas is calculated by the 9th calculation formula2Volume content percentage, the 9th calculation formula is：
φ(CO2)=Vgy[φ′(CO2)+φ′(CO)]-φ(CO)
Wherein, φ (CO2), φ (CO) be respectively CO in dry gas2, CO volume content percentage, %；VgyDone for unit volume
Actual dry flue gas amount caused by gas-fired；φ′(CO2), φ ' (CO) be respectively CO in dry flue gas2, CO volume content percentage
Rate, %.
10. a kind of coal gas of converter composition flexible measurement method based on calorific value of gas and smoke components as claimed in claim 9, its
It is characterised by：N in dry gas is calculated by the tenth calculation formula2Volume content percentage, the tenth calculation formula is：
φ(N2)=100- φ (CO)-φ (CO2)-φ(H2)-φ(O2)
Wherein, φ (N2)、φ(CO)、φ(CO2)、φ(H2)、φ(O2) it is respectively N in dry gas2、CO、CO2、H2、O2Volume
Percent content, %.
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| CN201711171057.8A CN107844682B (en) | 2017-11-21 | 2017-11-21 | Converter gas component soft measurement method based on gas heat value and smoke component |
| MYPI2020002022A MY192529A (en) | 2017-11-21 | 2018-05-28 | Converter gas component soft measuring method based on gas heat value and flue gas components |
| PCT/CN2018/088726 WO2019100683A1 (en) | 2017-11-21 | 2018-05-28 | Converter gas component soft measuring method based on gas heat value and flue gas components |
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| CN108627538A (en) * | 2018-03-28 | 2018-10-09 | 武汉理工大学 | Full-scale ventilation restricted clearance burning heat release rate measurement method |
| CN108949194A (en) * | 2018-07-31 | 2018-12-07 | 中冶焦耐(大连)工程技术有限公司 | The measurement method of the outer waste gas circulation amount of coke oven furnace |
| CN109655488A (en) * | 2018-12-17 | 2019-04-19 | 江苏海事职业技术学院 | Calorific value of gas flexible measurement method based on mixed gas preheated burning |
| WO2019100683A1 (en) * | 2017-11-21 | 2019-05-31 | 江苏海事职业技术学院 | Converter gas component soft measuring method based on gas heat value and flue gas components |
| CN109580711B (en) * | 2018-12-17 | 2021-06-01 | 江苏海事职业技术学院 | Soft measurement method for gas calorific value under condition of blast furnace gas and converter gas co-combustion |
| CN113470763A (en) * | 2021-07-14 | 2021-10-01 | 中国航发贵阳发动机设计研究所 | System for measuring and calculating components of thermal dissociation gas generated by combustion of hydrocarbon fuel |
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| CN111666530B (en) * | 2020-04-23 | 2023-09-01 | 中冶华天工程技术有限公司 | Gas combustion calculation method based on component correction |
| CN111666531B (en) * | 2020-04-23 | 2023-08-25 | 中冶华天工程技术有限公司 | Fuel combustion calculation method under condition of high content of residual CO in flue gas |
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| CN108627538A (en) * | 2018-03-28 | 2018-10-09 | 武汉理工大学 | Full-scale ventilation restricted clearance burning heat release rate measurement method |
| CN108627538B (en) * | 2018-03-28 | 2020-01-31 | 武汉理工大学 | Method for measuring combustion heat release rate of full-size ventilation restricted space |
| CN108520157A (en) * | 2018-04-20 | 2018-09-11 | 江苏永钢集团有限公司 | A kind of measuring method of blast furnace gas occurrence quantity |
| CN108949194A (en) * | 2018-07-31 | 2018-12-07 | 中冶焦耐(大连)工程技术有限公司 | The measurement method of the outer waste gas circulation amount of coke oven furnace |
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| CN109655488B (en) * | 2018-12-17 | 2021-03-30 | 江苏海事职业技术学院 | Gas calorific value soft measurement method based on mixed gas preheating combustion |
| CN109580711B (en) * | 2018-12-17 | 2021-06-01 | 江苏海事职业技术学院 | Soft measurement method for gas calorific value under condition of blast furnace gas and converter gas co-combustion |
| CN113470763A (en) * | 2021-07-14 | 2021-10-01 | 中国航发贵阳发动机设计研究所 | System for measuring and calculating components of thermal dissociation gas generated by combustion of hydrocarbon fuel |
| CN113470763B (en) * | 2021-07-14 | 2023-03-14 | 中国航发贵阳发动机设计研究所 | System for measuring and calculating components of thermal dissociation gas generated by combustion of hydrocarbon fuel |
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| CN107844682B (en) | 2022-02-01 |
| MY192529A (en) | 2022-08-26 |
| WO2019100683A1 (en) | 2019-05-31 |
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Application publication date: 20180327 Assignee: Nanjing Donghuan Intelligent Energy Saving Technology Co.,Ltd. Assignor: JIANGSU MARITIME INSTITUTE Contract record no.: X2023980045693 Denomination of invention: Soft measurement method for converter gas composition based on gas calorific value and flue gas composition Granted publication date: 20220201 License type: Common License Record date: 20231107 |