CN112347624A - Glass energy consumption measuring method and device - Google Patents
Glass energy consumption measuring method and device Download PDFInfo
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- CN112347624A CN112347624A CN202011162640.4A CN202011162640A CN112347624A CN 112347624 A CN112347624 A CN 112347624A CN 202011162640 A CN202011162640 A CN 202011162640A CN 112347624 A CN112347624 A CN 112347624A
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- 239000011521 glass Substances 0.000 title claims abstract description 189
- 238000005265 energy consumption Methods 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 125
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000002844 melting Methods 0.000 claims abstract description 71
- 230000008018 melting Effects 0.000 claims abstract description 71
- 239000003345 natural gas Substances 0.000 claims abstract description 53
- 239000000779 smoke Substances 0.000 claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims abstract description 25
- 239000006060 molten glass Substances 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 49
- 239000003546 flue gas Substances 0.000 claims description 49
- 238000010276 construction Methods 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
Abstract
The invention discloses a method and a device for measuring glass energy consumption, wherein the method comprises the following steps: firstly, constructing an energy consumption calculation model required by melting unit mass of glass: the method specifically comprises the following steps: constructing a heat dissipation calculation model of the glass kiln body during idle burning; constructing a total energy calculation model generated by natural gas, a total energy calculation model provided by electric boosting, a total energy consumption calculation model of molten glass and a heat calculation model taken away by kiln smoke during normal production; according to a heat dissipation calculation model of a glass kiln body during idle burning and normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by kiln smoke, and constructing an energy consumption calculation model required by glass melting; constructing an energy consumption calculation model required by melting unit mass of glass; and then, measuring the energy consumption of the glass based on the constructed energy consumption calculation model required by melting the glass with unit mass. The invention can accurately calculate the energy consumed by melting the glass.
Description
Technical Field
The invention belongs to the technical field of glass production, and particularly relates to a method and a device for measuring glass energy consumption.
Background
In the field of glass production, process adjustments are often determined by calculating the energy of natural gas and electric boosting used during the glass melting process to estimate the energy required to melt the glass.
In the glass furnace using electric boosting, the energy for melting glass is provided by natural gas combustion and electricity, and the energy consumption of the glass in the time t is calculated by the following formula:
Q＝Qgas+Qe ①
Qgas＝αgas×q×V×t ②
Qe＝αe×P×t ③
obtaining the following components by the following steps:
Q＝αgas×q×V×t+αe×P×t ④
wherein Q: the energy consumed to melt the glass;
Qgas: when the glass is melted, the natural gas burns to bring energy to the molten glass;
Qe: when the glass liquid is melted, the energy brought to the glass liquid by electric boosting is carried out;
αgas: thermal efficiency of natural gas combustion;
αe: the thermal efficiency of electric boosting;
q: natural gas calorific value;
v: a natural gas flow rate;
p is electric boosting power;
t is time;
setting the discharge amount of the glass kiln as D (the weight of glass melted in the glass kiln in unit time),
the total mass M of the glass to be melted is equal to Dxt within the time t;
the energy consumption per unit mass of glass (required for melting) is:
Q/M＝(αgas×q×V×t+αe×P×t)/(D×t)
＝(αgas×q×V+αe×P)/D
however, in the actual production process, the calculation can be time-consuming, alphagas、αeThe natural gas combustion heat efficiency is different due to different design sizes and styles of the kiln, and if the formula is used alone, the calculation accuracy of the glass energy consumption is influenced.
Disclosure of Invention
The invention provides a method and a device for measuring glass energy consumption, aiming at the problems that the heat efficiency of the existing method for measuring the glass energy consumption is an empirical value, a fixed value is adopted, and the heat efficiency of natural gas combustion is different due to different design sizes and styles of kilns, so that the calculation accuracy of the glass energy consumption is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of measuring energy consumption of glass comprising:
step 1: constructing an energy consumption calculation model required by melting unit mass of glass; the step 1 comprises the following steps:
step 1.1: constructing a heat dissipation calculation model of the glass kiln body during idle burning;
step 1.2: constructing a total energy calculation model generated by natural gas during normal production;
step 1.3: constructing a total energy calculation model provided by electric boosting during normal production;
step 1.4: according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production, constructing a total energy consumption calculation model of the molten glass during normal production;
step 1.5: constructing a heat calculation model taken away by the kiln flue gas during normal production;
step 1.6: constructing an energy consumption calculation model required by glass melting according to a heat dissipation calculation model of a glass furnace body during idle burning and normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by furnace flue gas during normal production;
step 1.7: constructing an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the co-melted glass in a time period;
step 2: and measuring the energy consumption of the glass based on the constructed energy consumption calculation model required by melting the glass with unit mass.
Further, during the idle burning, the heat dissipation capacity calculation model of the glass kiln body is as follows:
Qout＝Qgas-out–Qsmoke-out ⑤
wherein the content of the first and second substances,
Qgas-out＝q×Vgas-out×t ⑥
Qsmoke-out＝ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out ⑦
is obtained by the following formulas:
Qout＝q×Vgas-out×t–[ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out] ⑧
wherein QoutThe heat dissipation capacity of the glass kiln body is reduced when the glass kiln is in idle burning; qgas-outEnergy brought by natural gas during idle burning; qsmoke-outEnergy taken away by the flue gas when the coal is in idle burning; vgas-outWhen the burning is empty, the natural gas flow is high; rhosmokeWhen the burning is empty, the density of the smoke is high; vsmoke-outWhen the air-fuel combustion is in idle combustion, the flow rate of flue gas is increased; t is tsmoke-outWhen the burning is empty, the temperature of the flue gas is high; t is room temperature; c. Csmoke-outWhen the fuel is empty, the specific heat capacity of the flue gas is high; t is time.
Further, during normal production, the total energy calculation model of natural gas production is as follows:
Qgas-normal＝q×Vgas-normal×t ⑨
wherein Qgas-normalThe total energy produced by the natural gas during normal production; q is the natural gas calorific value; vgas-normalNatural gas flow for normal production; t is time.
Further, during normal production, the total energy calculation model provided by electric boosting is as follows:
wherein Qe-normalThe total energy provided by electric boosting during normal production; pe-normalElectric boosting power when normal production is performed; t is time.
Further, during normal production, the calculation model of total energy consumption of the molten glass is as follows:
wherein QtotalTotal energy consumed to melt the glass; qgas-normalThe total energy produced by the natural gas during normal production; qe-normalThe total energy provided by electric boosting during normal production.
Further, during normal production, the calculation model of the heat taken away by the kiln flue gas is as follows:
wherein Qsmoke-normalThe heat taken away by the kiln gas during normal production; rhosmokeDensity of flue gas for normal production; vsmoke-normalThe flow of the flue gas during normal production; t is tsmoke-normalThe temperature of the flue gas during normal production; c. Csmoke-normaThe specific heat capacity of the flue gas during normal production.
Further, the energy consumption calculation model required by glass melting is as follows:
wherein Q is the energy used to melt the glass; qtotalTotal energy consumed to melt the glass; qout-normalHeat dissipation capacity of the glass furnace body for the production of product, and Qout-normal≈Qout；Qsmoke-normalThe heat taken away by the flue gas of the kiln is the heat in normal production.
Further, the energy consumption calculation model required by melting the glass with unit mass is as follows:
where M is the total mass of glass melted over time t.
Further, the step 2 comprises:
and according to the constructed energy consumption calculation model required by the unit mass of the glass to be melted and the mass of the glass to be melted, obtaining the total energy required to be consumed during the glass melting.
A glass energy consumption measuring device comprising:
the energy consumption calculation model building module is used for building an energy consumption calculation model required by melting the glass with unit mass; the energy consumption calculation model building module required by melting of the unit mass of glass comprises:
the first model building submodule is used for building a heat dissipation calculation model of the glass kiln body during idle burning;
the second model construction submodule is used for constructing a total energy calculation model generated by natural gas during normal production;
the third model construction submodule is used for constructing a total energy calculation model provided by electric boosting during normal production;
the fourth model construction submodule is used for constructing a total energy consumption calculation model of the molten glass during normal production according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production;
the fifth model construction submodule is used for constructing a heat calculation model taken away by the kiln smoke during normal production;
a sixth model construction submodule, configured to construct an energy consumption calculation model required for glass melting according to a heat dissipation calculation model of the glass furnace body during idle burning and during normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by furnace flue gas during normal production;
the seventh model building submodule is used for building an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the glass co-melted in a time period;
and the glass energy consumption measuring module is used for measuring the glass energy consumption based on the constructed energy consumption calculation model required by melting the unit mass of the glass.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method and a device for measuring glass energy consumption, aiming at the problems that the heat efficiency of the existing method for measuring the glass energy consumption is an empirical value, a fixed value is adopted, and the heat efficiency of natural gas combustion is different due to different design sizes and styles of kilns, so that the calculation accuracy of the glass energy consumption is influenced. Firstly, constructing an energy consumption calculation model required by melting unit mass of glass; the method specifically comprises the following steps: constructing a heat dissipation calculation model of the glass kiln body during idle burning; constructing a total energy calculation model generated by natural gas, a total energy calculation model provided by electric boosting and a heat calculation model taken away by kiln smoke during normal production; according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production, constructing a total energy consumption calculation model of the molten glass during normal production; constructing an energy consumption calculation model required by glass melting according to a heat dissipation calculation model of a glass furnace body during idle burning and normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by furnace flue gas during normal production; constructing an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the co-melted glass in a time period; and then, measuring the energy consumption of the glass based on the constructed energy consumption calculation model required by melting the glass with unit mass. By the method, for different furnace types (different sizes), because of different furnace types, the heat radiation of the furnace body is different, the emission amount of smoke is different, and the method of the invention can radiate heat to the furnace body already in calculation (Q in the formula (R))out) Heat lost by fume emission
Qsmoke-normal) Calculated and expressed in formula
The invention can accurately calculate the energy consumed by melting the glassThereby guiding the process adjustment more accurately.
Drawings
FIG. 1 is a basic flow chart of a method for measuring glass energy consumption according to an embodiment of the present invention;
FIG. 2 is a flow chart of an energy consumption calculation model for melting glass of unit mass according to the method for measuring energy consumption of glass of the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a glass energy consumption measuring device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an energy consumption calculation model building module required for melting unit mass of glass in the glass energy consumption measuring device according to the embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 and 2, a method for measuring glass energy consumption includes:
step S101: and constructing an energy consumption calculation model required by melting the glass with unit mass.
Specifically, the step S101 includes:
step S101.1: constructing a heat dissipation calculation model of the glass kiln body during idle burning;
further, during the idle burning, the heat dissipation capacity calculation model of the glass kiln body is as follows:
Qout＝Qgas-out–Qsmoke-out ⑤
wherein the content of the first and second substances,
Qgas-out＝q×Vgas-out×t ⑥
Qsmoke-out＝ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out ⑦
is obtained by the following formulas:
Qout＝q×Vgas-out×t–[ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out] ⑧
wherein QoutThe heat dissipation capacity of the glass kiln body is reduced when the glass kiln is in idle burning; qgas-outEnergy brought by natural gas during idle burning; qsmoke-outEnergy taken away by the flue gas when the coal is in idle burning; vgas-outWhen the burning is empty, the natural gas flow is high; rhosmokeWhen the burning is empty, the density of the smoke is high; vsmoke-outWhen the air-fuel combustion is in idle combustion, the flow rate of flue gas is increased; t is tsmoke-outWhen the burning is empty, the temperature of the flue gas is high; t is room temperature; c. Csmoke-outWhen the fuel is empty, the specific heat capacity of the flue gas is high; t is time. As an embodiment, T may be 25 ℃.
Step S101.2: constructing a total energy calculation model generated by natural gas during normal production;
further, during normal production, the total energy calculation model of natural gas production is as follows:
Qgas-normal＝q×Vgas-normal×t ⑨
at the moment, the combustion heat efficiency of the corresponding natural gas is 100 percent; wherein Qgas-normalThe total energy produced by the natural gas during normal production; q is the natural gas calorific value; vgas-normalNatural gas flow for normal production; t is time.
Step S101.3: constructing a total energy calculation model provided by electric boosting during normal production;
further, during normal production, the total energy calculation model provided by electric boosting is as follows:
Qe-normal＝Pe-normal×t ⑩
wherein Qe-normalThe total energy provided by electric boosting during normal production; pe-normalElectric boosting power when normal production is performed; t is time.
Step S101.4: according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production, constructing a total energy consumption calculation model of the molten glass during normal production;
further, during normal production, the calculation model of total energy consumption of the molten glass is as follows:
wherein QtotalTotal energy consumed to melt the glass; qgas-normalThe total energy produced by the natural gas during normal production; qe-normalThe total energy provided by electric boosting during normal production.
Step S101.5: constructing a heat calculation model taken away by the kiln flue gas during normal production;
further, during normal production, the calculation model of the heat taken away by the kiln flue gas is as follows:
wherein Qsmoke-normalThe heat taken away by the kiln gas during normal production; rhosmokeDensity of flue gas for normal production; vsmoke-normalThe flow of the flue gas during normal production; t is tsmoke-normalThe temperature of the flue gas during normal production; c. Csmoke-normaThe specific heat capacity of the flue gas during normal production. Specifically, ρsmoke、Vsmoke-normal、tsmoke-normal、csmoke-normaCan be obtained by measurement.
Step S101.6: constructing an energy consumption calculation model required by glass melting according to a heat dissipation calculation model of a glass furnace body during idle burning and normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by furnace flue gas during normal production;
further, the energy consumption calculation model required by glass melting is as follows:
wherein QtotalTotal energy consumed to melt the glass; qout-normalThe heat dissipation capacity of the glass kiln body when the production is in progress; qsmoke-normalIn order to realize the normal production,the heat taken away by the kiln gas.
In particular, from the formula
、
Obtaining:
because the heat dissipating capacity of the glass kiln body is basically consistent during normal production and idle burning, Q isout-normal≈QoutFrom
The following formula is derived:
(iii) the formula (c), the (c) and the (c),
Bringing in
The energy for melting the glass is obtained as follows:
step S101.7: constructing an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the co-melted glass in a time period;
further, the energy consumption calculation model required by melting the glass with unit mass is as follows:
where M is the total mass of glass melted over time t.
According to the formula
The energy required for dissolution of a unit mass of glass is obtained as:
step S102: and measuring the energy consumption of the glass based on the constructed energy consumption calculation model required by melting the glass with unit mass.
Further, the step S102 includes:
and according to the constructed energy consumption calculation model required by the unit mass of the glass to be melted and the mass of the glass to be melted, obtaining the total energy required to be consumed during the glass melting.
On the basis of the above embodiments, as shown in fig. 3 and 4, the present invention also discloses a glass energy consumption measuring apparatus, including:
an energy consumption calculation model building module 201 required by unit mass glass melting, configured to build an energy consumption calculation model required by unit mass glass melting; the energy consumption calculation model building module 201 required by melting unit mass of glass comprises:
a first model construction submodule 2011 for constructing a heat dissipation calculation model of the glass kiln body during idle burning;
the second model construction submodule 2012 is used for constructing a total energy calculation model generated by the natural gas during normal production;
the third model building submodule 2013 is used for building a total energy calculation model provided by electric boosting during normal production;
the fourth model construction submodule 2014 is used for constructing a total energy consumption calculation model during normal production according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production;
a fifth model construction submodule 2015 for constructing a heat calculation model taken away by the kiln gas in normal production;
a sixth model construction submodule 2016 for constructing an energy consumption calculation model required for glass melting according to a heat dissipation calculation model of the glass furnace body during idle burning and normal production, a total energy consumption calculation model for melting glass during normal production and a heat calculation model taken away by furnace flue gas during normal production;
the seventh model construction submodule 2017 is used for constructing an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the co-melted glass in a time period;
and the glass energy consumption measuring module 202 is used for measuring the glass energy consumption based on the constructed energy consumption calculation model required by melting the unit mass of the glass.
Further, during the idle burning, the heat dissipation capacity calculation model of the glass kiln body is as follows:
Qout＝Qgas-out–Qsmoke-out ⑤
wherein the content of the first and second substances,
Qgas-out＝q×Vgas-out×t ⑥
Qsmoke-out＝ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out ⑦
is obtained by the following formulas:
Qout＝q×Vgas-out×t–[ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out] ⑧
wherein QoutThe heat dissipation capacity of the glass kiln body is reduced when the glass kiln is in idle burning; qgas-outEnergy brought by natural gas during idle burning; qsmoke-outEnergy taken away by the flue gas when the coal is in idle burning; vgas-outWhen the burning is empty, the natural gas flow is high; rhosmokeWhen the burning is empty, the density of the smoke is high; vsmoke-outWhen the air-fuel combustion is in idle combustion, the flow rate of flue gas is increased; t is tsmoke-outWhen the burning is empty, the temperature of the flue gas is high; t is room temperature；csmoke-outWhen the fuel is empty, the specific heat capacity of the flue gas is high; t is time.
Further, during normal production, the total energy calculation model of natural gas production is as follows:
Qgas-normal＝q×Vgas-normal×t ⑨
wherein Qgas-normalThe total energy produced by the natural gas during normal production; q is the natural gas calorific value; vgas-normalNatural gas flow for normal production; t is time.
Further, during normal production, the total energy calculation model provided by electric boosting is as follows:
Qe-normal＝Pe-normal×t ⑩
wherein Qe-normalThe total energy provided by electric boosting during normal production; pe-normalElectric boosting power when normal production is performed; t is time.
Further, during normal production, the calculation model of total energy consumption of the molten glass is as follows:
wherein QtotalTotal energy consumed to melt the glass; qgas-normalThe total energy produced by the natural gas during normal production; qe-normalThe total energy provided by electric boosting during normal production.
Further, during normal production, the calculation model of the heat taken away by the kiln flue gas is as follows:
wherein Qsmoke-normalThe heat taken away by the kiln gas during normal production; rhosmokeDensity of flue gas for normal production; vsmoke-normalThe flow of the flue gas during normal production; t is tsmoke-normalThe temperature of the flue gas during normal production; c. Csmoke-normaThe specific heat capacity of the flue gas during normal production.
Further, the energy consumption calculation model required by glass melting is as follows:
wherein Q is the energy used to melt the glass; qtotalTotal energy consumed to melt the glass; qout-normalHeat dissipation capacity of the glass furnace body for the production of product, and Qout-normal≈Qout；Qsmoke-normalThe heat taken away by the flue gas of the kiln is the heat in normal production.
Further, the energy consumption calculation model required by melting the glass with unit mass is as follows:
where M is the total mass of glass melted over time t.
Further, the glass energy consumption measurement module 202 is specifically configured to:
and according to the constructed energy consumption calculation model required by the unit mass of the glass to be melted and the mass of the glass to be melted, obtaining the total energy required to be consumed during the glass melting.
In summary, in the above manner, for different furnace types (different sizes), because of different furnace types, the heat radiation of the furnace body is different, and the emission amount of the smoke is different, the method of the invention has already radiated heat to the furnace body in the calculation (Q in the formula (r))out) Heat lost by fume emission
Qsmoke-normal) Calculated and expressed in formula
The invention can accurately calculate the energy consumed by melting the glass, thereby being capable of removingAccurately guide the process adjustment.
The above shows only the preferred embodiments of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. A method for measuring energy consumption of glass is characterized by comprising the following steps:
step 1: constructing an energy consumption calculation model required by melting unit mass of glass; the step 1 comprises the following steps:
step 1.1: constructing a heat dissipation calculation model of the glass kiln body during idle burning;
step 1.2: constructing a total energy calculation model generated by natural gas during normal production;
step 1.3: constructing a total energy calculation model provided by electric boosting during normal production;
step 1.4: according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production, constructing a total energy consumption calculation model of the molten glass during normal production;
step 1.5: constructing a heat calculation model taken away by the kiln flue gas during normal production;
step 1.6: constructing an energy consumption calculation model required by glass melting according to a heat dissipation calculation model of a glass furnace body during idle burning and normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by furnace flue gas during normal production;
step 1.7: constructing an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the co-melted glass in a time period;
step 2: and measuring the energy consumption of the glass based on the constructed energy consumption calculation model required by melting the glass with unit mass.
2. The method for measuring the energy consumption of the glass as claimed in claim 1, wherein the model for calculating the heat dissipation capacity of the glass kiln body during the idle burning is as follows:
Qout＝Qgas-out–Qsmoke-out ⑤
wherein the content of the first and second substances,
Qgas-out＝q×Vgas-out×t ⑥
Qsmoke-out＝ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out ⑦
is obtained by the following formulas:
Qout＝q×Vgas-out×t–[ρsmoke×Vsmoke-out×t×(tsmoke-out–T)×csmoke-out] ⑧
wherein QoutThe heat dissipation capacity of the glass kiln body is reduced when the glass kiln is in idle burning; qgas-outEnergy brought by natural gas during idle burning; qsmoke-outEnergy taken away by the flue gas when the coal is in idle burning; vgas-outWhen the burning is empty, the natural gas flow is high; rhosmokeWhen the burning is empty, the density of the smoke is high; vsmoke-outWhen the air-fuel combustion is in idle combustion, the flow rate of flue gas is increased; t is tsmoke-outWhen the burning is empty, the temperature of the flue gas is high; t is room temperature; c. Csmoke-outWhen the fuel is empty, the specific heat capacity of the flue gas is high; t is time.
3. The method for measuring the energy consumption of the glass according to claim 1, wherein during normal production, the total energy calculation model generated by natural gas is as follows:
Qgas-normal＝q×Vgas-normal×t ⑨
wherein Qgas-normalThe total energy produced by the natural gas during normal production; q is the natural gas calorific value; vgas-normalNatural gas flow for normal production; t is time.
4. The method for measuring the energy consumption of the glass according to claim 1, wherein during normal production, the total energy calculation model provided by electric boosting is as follows:
Qe-normal＝Pe-normal×t ⑩
wherein Qe-normalThe total energy provided by electric boosting during normal production; pe-normalElectric boosting power when normal production is performed; t is time.
5. The method for measuring the energy consumption of glass according to claim 1, wherein the model for calculating the total energy consumption of the molten glass during normal production is as follows:
wherein QtotalTotal energy consumed to melt the glass; qgas-normalThe total energy produced by the natural gas during normal production; qe-normalThe total energy provided by electric boosting during normal production.
6. The method for measuring the energy consumption of the glass according to claim 1, wherein during normal production, the calculation model of the quantity of heat taken away by the flue gas of the kiln is as follows:
wherein Qsmoke-normalThe heat taken away by the kiln gas during normal production; rhosmokeDensity of flue gas for normal production; vsmoke-normalThe flow of the flue gas during normal production; t is tsmoke-normalThe temperature of the flue gas during normal production; c. Csmoke-normaThe specific heat capacity of the flue gas during normal production.
7. The method for measuring the energy consumption of glass according to any one of claims 1 to 6, wherein the energy consumption calculation model required for melting the glass is as follows:
wherein Q is the energy used to melt the glass; qtotalTotal energy consumed to melt the glass; qout-normalHeat dissipation capacity of the glass furnace body for the production of product, and Qout-normal≈Qout；Qsmoke-normalThe heat taken away by the flue gas of the kiln is the heat in normal production.
8. The method for measuring the energy consumption of the glass according to claim 7, wherein the energy consumption calculation model required for melting the glass per unit mass is as follows:
where M is the total mass of glass melted over time t.
9. The method for measuring the energy consumption of glass according to claim 1, wherein the step 2 comprises:
and according to the constructed energy consumption calculation model required by the unit mass of the glass to be melted and the mass of the glass to be melted, obtaining the total energy required to be consumed during the glass melting.
10. A glass energy consumption measuring device, comprising:
the energy consumption calculation model building module is used for building an energy consumption calculation model required by melting the glass with unit mass; the energy consumption calculation model building module required by melting of the unit mass of glass comprises:
the first model building submodule is used for building a heat dissipation calculation model of the glass kiln body during idle burning;
the second model construction submodule is used for constructing a total energy calculation model generated by natural gas during normal production;
the third model construction submodule is used for constructing a total energy calculation model provided by electric boosting during normal production;
the fourth model construction submodule is used for constructing a total energy consumption calculation model of the molten glass during normal production according to a total energy calculation model generated by natural gas and a total energy calculation model provided by electric boosting during normal production;
the fifth model construction submodule is used for constructing a heat calculation model taken away by the kiln smoke during normal production;
a sixth model construction submodule, configured to construct an energy consumption calculation model required for glass melting according to a heat dissipation calculation model of the glass furnace body during idle burning and during normal production, a total energy consumption calculation model for melting glass and a heat calculation model taken away by furnace flue gas during normal production;
the seventh model building submodule is used for building an energy consumption calculation model required by unit mass glass melting according to the energy consumption calculation model required by glass melting and the mass of the glass co-melted in a time period;
and the glass energy consumption measuring module is used for measuring the glass energy consumption based on the constructed energy consumption calculation model required by melting the unit mass of the glass.
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