CN206627145U - A kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat - Google Patents
A kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat Download PDFInfo
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- CN206627145U CN206627145U CN201621113984.5U CN201621113984U CN206627145U CN 206627145 U CN206627145 U CN 206627145U CN 201621113984 U CN201621113984 U CN 201621113984U CN 206627145 U CN206627145 U CN 206627145U
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Abstract
The utility model discloses a kind of generating metering system for heat, particularly a kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat.The system includes combustion gas proximate analysis instrument (2), gas meter (3), thermocouple (4), analytical equipment (5) and electric power meter (8).Wherein combustion gas proximate analysis instrument (2), gas meter (3) and thermocouple (4) one end is connected to biomass fuel feed channel (1), the other end is connected to analytical equipment (5), and analytical equipment (5) is also connected with electric power meter (8).Wherein analytical equipment (5) is made up of chemical energy analytical equipment (6) and sensible heat analytical equipment (7).The system can be transmitted detection, the method that electricity is rolled over using fuel gas calorie is measured indirectly, calculates Biomass Gasification ＆ Power Generation electricity volume in real time by measuring Gas Components in real time, calculating fuel gases calorific value to calorific value signal.
Description
Technical field
It the utility model is related to a kind of generating metering system for heat, particularly a kind of gasification of biomass and coal-fired electric generation furnace
Coupled electricity-generation metering system for heat.
Background technology
China is large agricultural country, and agricultural crop straw amount is about 700,000,000 tons/year, is occupied first place in the world.With expanding economy, make
Attention is received for the renewable biomass energy stored and transported, is widely used in biomass direct combustion power generation.Though biomass direct combustion power generation
Significant progress so is achieved, but deslagging phosphorus content is too high, and biomass economy rate is not high, and efficiency is relatively low.Gasification of biomass and combustion
Coal burning boiler coupled electricity-generation be carried in low heat value fuel gas caused by biomass gasifies in gasification installation and combustion gas it is flammable
Particle is admitted to the technology of boiler furnace and coal mixed combustion by gas supply pipe.Reducibility gas caused by gasification enters
Station boiler reburning zone, reduction is played to the oxidizing gas pollutant such as nitrogen oxides, reduce pollutant discharge amount and fly
Ash content, existing Large Efficient electricity generation system is make use of, drastically increase the efficiency that biomass energy is converted into electric energy.Due to
It is the combination of two different systems, so metering method and electricity algorithm are a big emphasis, one kind can not calculate at present
The system of Biomass Gasification ＆ Power Generation electricity volume.
Utility model content
The purpose of this utility model is, there is provided a kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation heat metering
System, the system can effectively adjust Biomass Gasification ＆ Power Generation electricity volume in real time.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
The system includes combustion gas proximate analysis instrument, gas meter, thermocouple, analytical equipment and electric power meter, combustion
Gas proximate analysis instrument, gas meter and the equal one end of thermocouple are connected to biomass fuel feed channel, and the other end is connected to analysis dress
Put.The analytical equipment is also connected with electric power meter.By installing combustion gas component point on biological fuel gas conveyance conduit
Analyzer obtains each component content, measures the calorific value under biological fuel gas mark condition.Fuel individually measures biomass fuel when mixing,
Caused gas quantity can be measured accurately with gas componant.System measures Gas Components in real time, fuel gases calorific value is calculated, to calorific value
Signal is transmitted detection, and delivery is measured indirectly using the method for fuel gas calorie folding electricity.The analytical equipment is by changing
Learning can analytical equipment and sensible heat analytical equipment composition.The chemical energy analytical equipment is by analyzing the signal of combustion gas proximate analysis instrument
Parameter, according to the calorific value under each component cubage Biomass combustion gas mark condition, further according to the volume flow of gas meter measurement
Amount, obtains the chemical energy entrained by biological fuel gas.The sensible heat analytical equipment can also calculate according to combustion gas proximate analysis instrument
Go out the average external volume thermal capacitance of combustion gas, the fuel gas temperature measured further according to thermocouple and the volume flow surveyed just obtain biomass fuel
Sensible heat entrained by gas.
Foregoing gas meter uses Deltaflow meter, and the Deltaflow meter is a kind of plug-in type flow
Measuring instrumentss, can be automatic to calculate combustion gas heating according to the gas flow and composition of measurement with the operation principle of differential pressure type
Amount.
In order that thermocouple and display instrument it is supporting, foregoing thermocouple uses standard couple.The standard hot
Even have unified standard phasing meter, compared to non-standard thermocouple in use range or the order of magnitude it is more extensive.
Foregoing electric power meter includes electric energy meter, metering voltage transformer, current transformer for metering, metering two
Minor loop and electric energy metering cabinet, the device is rational business accounting and collects electricity and provides foundation.
In order to improve the service life of flowmeter, the flow probe material of foregoing Deltaflow meter is 316L, tool
There is excellent corrosion resistance.
Compared with prior art, it is of the present utility model to be beneficial in that：The system is provided with combustion gas proximate analysis instrument, combustion
Air-flow gauge, thermocouple, analytical equipment and electric power meter, can by measure in real time Gas Components, calculate fuel gases calorific value,
Detection is transmitted to calorific value signal, the method that electricity is rolled over using fuel gas calorie is measured indirectly, calculates gasification of biomass in real time
Generating electricity volume.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is workflow diagram of the present utility model.
The implication of reference：1- biomass fuel feed channels, 2- combustion gas proximate analysis instrument, 3- gas meters, 4- thermoelectricity
It is even, 5- analytical equipments, 6- chemical energy analytical equipments, 7- sensible heat analytical equipments, 8- electric power meters.
The utility model is further described with reference to the accompanying drawings and detailed description.
Embodiment
Embodiment 1 of the present utility model：As depicted in figs. 1 and 2, the system includes combustion gas proximate analysis instrument 2, gas flow
Meter 3, thermocouple 4, analytical equipment 5 and electric power meter 8, combustion gas proximate analysis instrument 2, gas meter 3 and thermocouple 4 are homogeneous
End is connected to biomass fuel feed channel 1, and the other end is connected to analytical equipment 5, and analytical equipment 5 is also connected with electric power meter 8.
Combustion gas proximate analysis instrument 2 can obtain each component content, measure the calorific value under biological fuel gas mark condition.Gas meter 3 uses
Deltaflow meter, can be automatic to calculate combustion gas caloric value according to the gas flow and composition of measurement.Deltaflow meter
Flow probe material be 316L, there is excellent corrosion resistance, improve the service life of flowmeter.Thermocouple 4 is using mark
Quasi- thermocouple, the fuel gas temperature in biomass fuel feed channel 1 can be measured.Analytical equipment 5 is mainly by the He of chemical energy analytical equipment 6
Sensible heat analytical equipment 7 forms.Chemical energy analytical equipment 6 is by analyzing the signal parameter of combustion gas proximate analysis instrument 2, according to each component
Calorific value under cubage Biomass combustion gas mark condition, the volume flow measured further according to gas meter 3, that is, obtain biomass
Chemical energy entrained by combustion gas.Sensible heat analytical equipment 7 can also calculate the average body of combustion gas according to combustion gas proximate analysis instrument 2
Accumulated heat is held, and the fuel gas temperature measured further according to thermocouple 4 and the volume flow surveyed just obtain showing entrained by biological fuel gas
Heat.Electric power meter 8 collects the sensible heat sum entrained by the chemical energy and biological fuel gas entrained by biological fuel gas
To the total amount of heat entrained by biological fuel gas, then Biomass Gasification ＆ Power Generation electricity volume is calculated further according to formula.Formula is such as
Under：
Fuel individually measures biomass fuel when mixing, and caused gas quantity can be measured accurately with gas componant,
System measures Gas Components, calculates fuel gases calorific value in real time, and detection is transmitted to calorific value signal, and delivery is rolled over using fuel gas calorie
The method of electricity is measured indirectly.
Embodiment 2 of the present utility model：As depicted in figs. 1 and 2, this kind of gasification of biomass couples hair with coal-fired electric generation furnace
Electric heating measuring measures system-computed Biomass Gasification ＆ Power Generation electricity volume, and metering method can be divided into following 4 step：
(1) the combustion gas proximate analysis instrument 2 that chemical energy analytical equipment 6 is installed by analyzing in biomass fuel feed channel 1 measures
Each component content, according to the calorific value under each component cubage Biomass combustion gas mark condition, measured further according to gas meter 3
Volume flow (Nm3/ h), that is, obtain the chemical energy entrained by biological fuel gas.It see the table below middle formula 1..Delta bar flow
Meter can calculate the calorific value of combustion gas automatically, can be also calculated as follows according to formula：
Wherein yi is the fraction by volume (%) of each component in mixed gas, and Hi is calorific value (kJ/ of each component in the case where marking condition
m3)。
(2) parameter that sensible heat analytical equipment 7 measures according to combustion gas proximate analysis instrument 2, can also calculate being averaged for combustion gas
Volumetric heat capacity, the fuel gas temperature measured further according to thermocouple 4 and the volume flow surveyed just are obtained entrained by biological fuel gas
Sensible heat.It see the table below middle formula 2., the specific heat of wherein combustion gas is calculated as follows：
Wherein yi is the fraction by volume (%) of each component in mixed gas, and Ci is specific heat capacity (kJ/ of each component in the case where marking condition
m3.K)。
(3) according to formula 3. by biological fuel gas entrained by chemical energy and biological fuel gas entrained by sensible heat sum converge
Must be to the total amount of heat entrained by biological fuel gas, unit conversion into GJ.
(4) and then further according to coal unit net coal consumption rate (g/kWh) by formula Biomass Gasification ＆ Power Generation is 4. calculated
Electricity volume.
Embodiment 3 of the present utility model：As shown in figure 1, the system include combustion gas proximate analysis instrument 2, gas meter 3,
Thermocouple 4, analytical equipment 5 and electric power meter 8, combustion gas proximate analysis instrument 2, gas meter 3 and 4 equal one end of thermocouple connect
Biomass fuel feed channel 1 is connected to, the other end is connected to analytical equipment 5, and the other end and the electric power meter 8 of analytical equipment 5 connect
Connect.Analytical equipment 5 is mainly made up of chemical energy analytical equipment 6 and sensible heat analytical equipment 7.Chemical energy analytical equipment 6 passes through analysis
The signal parameter of combustion gas proximate analysis instrument 2, according to the calorific value under each component cubage Biomass combustion gas mark condition, further according to combustion
The volume flow that air-flow gauge 3 measures, that is, obtain the chemical energy entrained by biological fuel gas.Sensible heat analytical equipment 7 is according to combustion gas
Proximate analysis instrument 2, can also calculate the average external volume thermal capacitance of combustion gas, the fuel gas temperature measured further according to thermocouple 4 and survey
Volume flow just obtain sensible heat entrained by biological fuel gas.
The course of work of the present utility model：Chemical energy analytical equipment 6 is by analyzing the combustion installed in biomass fuel feed channel 1
The each component content that gas proximate analysis instrument 2 measures, according to the calorific value under each component cubage Biomass combustion gas mark condition, then root
The volume flow measured according to gas meter 3, that is, obtain the chemical energy entrained by biological fuel gas.The basis of sensible heat analytical equipment 7
The parameter that combustion gas proximate analysis instrument 2 measures, the average external volume thermal capacitance of combustion gas can also be calculated, is measured further according to thermocouple 4
Fuel gas temperature and the volume flow surveyed just obtain the sensible heat entrained by biological fuel gas.Electric power meter 8 is by biomass fuel
The sensible heat sum entrained by chemical energy and biological fuel gas entrained by gas collects to obtain the total amount of heat entrained by biological fuel gas,
Then Biomass Gasification ＆ Power Generation electricity volume is calculated further according to formula.
Claims (2)
1. a kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat, it is characterised in that including combustion gas group
Part analyzer (2), gas meter (3), thermocouple (4), analytical equipment (5) and electric power meter (8), the combustion gas component
Analyzer (2), gas meter (3) and thermocouple (4) one end are connected to biomass fuel feed channel (1), and the other end is connected to
Analytical equipment (5), the analytical equipment (5) are also connected with electric power meter (8)；The analytical equipment (5) is by chemical energy point
Analysis apparatus (6) and sensible heat analytical equipment (7) composition；The gas meter (3) is Deltaflow meter；The thermocouple
(4) it is standard couple；The electric power meter (8) includes electric energy meter, metering with voltage transformer, metering Current Mutual Inductance
Device, metering secondary and electric energy metering cabinet.
2. gasification of biomass according to claim 1 and coal-fired electric generation furnace coupled electricity-generation metering system for heat, its feature
It is, the flow probe material of the Deltaflow meter is 316L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113984.5U CN206627145U (en) | 2016-10-11 | 2016-10-11 | A kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113984.5U CN206627145U (en) | 2016-10-11 | 2016-10-11 | A kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat |
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| CN206627145U true CN206627145U (en) | 2017-11-10 |
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| CN201621113984.5U Active CN206627145U (en) | 2016-10-11 | 2016-10-11 | A kind of gasification of biomass and coal-fired electric generation furnace coupled electricity-generation metering system for heat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748969A (en) * | 2017-11-21 | 2018-03-02 | 合肥德博电力有限公司 | A kind of biological fuel gas generating device for calculating and method for coupling coal unit |
| CN108387602A (en) * | 2018-04-24 | 2018-08-10 | 南京林业大学 | Measure the instrument and its measurement method of gasification of biomass hot combustion gas actual calorific value |
-
2016
- 2016-10-11 CN CN201621113984.5U patent/CN206627145U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748969A (en) * | 2017-11-21 | 2018-03-02 | 合肥德博电力有限公司 | A kind of biological fuel gas generating device for calculating and method for coupling coal unit |
| CN108387602A (en) * | 2018-04-24 | 2018-08-10 | 南京林业大学 | Measure the instrument and its measurement method of gasification of biomass hot combustion gas actual calorific value |
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