CN104535613A - Device and method for measuring higher and lower heating values of solid mineral fuel - Google Patents
Device and method for measuring higher and lower heating values of solid mineral fuel Download PDFInfo
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- CN104535613A CN104535613A CN201410824919.2A CN201410824919A CN104535613A CN 104535613 A CN104535613 A CN 104535613A CN 201410824919 A CN201410824919 A CN 201410824919A CN 104535613 A CN104535613 A CN 104535613A
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Abstract
The invention provides a device for measuring higher and lower heating values of a solid mineral fuel. The device comprises a crushing device and a heating value detecting part, wherein the crushing device is a holding cavity provided with a cutter inside, the side wall of the crushing device is of a net structure, and the aperture of the net structure is 1-6mm; the heating value detecting part comprises a first heating value detecting part and a second heating value detecting part, and when the openings of the first heating value detecting part and the second heating value detecting part are mutually buckled, an annular sealed heating value detecting chamber is formed. The invention further provides a detection method using the device for measuring higher and lower heating values of the solid mineral fuel. The device provided by the invention is simple in structure, low in cost and convenient to operate, and can be used for quickly measuring the higher and lower heating values of the solid mineral fuel.
Description
Technical field
The present invention relates to the thermal value detection technique field of solid mineral fuel, particularly the determinator of the high-order and net calorific value of a kind of solid mineral fuel and assay method.
Background technology
Mineral fuel comprise coal, oil and natural gas, and wherein, solid mineral fuel refers to fire coal, and coal-fired firepower power station is the main body of China's power industry, are also the major fields of energy-saving and emission-reduction.Due to China mine, transport, coal price diversification, most of power plant all faces as-fired coal matter frequent fluctuation, and this affects the bottleneck problem of whole process safe and highly efficient operation.Weighing an important indicator of ature of coal is net calorific value, and the coal that net calorific value is defined as unit mass burns the heat that can produce completely.The change of net calorific value directly affects the coal-fired thermal value at burner hearth thus breaks full-range energy equilibrium.If thermal value raises and do not subtract coal in time, then the input of boiler side gross energy is higher than specified output, causes unit generated energy coal consumption in short-term to be risen; If thermal value declines and do not supplement coal-fired in time, then will directly cause unit short-time rating decline and load tracking precise decreasing.If as-fired coal net calorific value can be measured in real time, then suitable for coal blending workshop section; But the sampling analysis cycle of China's major part coal fired power plant ature of coal off-line assay value reaches 6-8 hour, can not as the foundation controlling (as coal-supplying amount feedforward compensation) in real time.Could by " perception " when often will wait until after coal varitation that main steam pressure occurs obviously to change, pass through boiler master system fading margin First air flow subsequently to increase/to reduce furnace coal weight, slowly, whole interference stabilizes that transient process is consuming time reaches 15-30 minute in said process response.Like this, if the period of change of actual as-fired coal net calorific value is a hour level, then whole production just may be in continued jitters state, has a strong impact on the economy of electricity power enterprise's production and steady security.
The low level of existing solid mineral fuel and gross calorific value detection method are coal-fired ultimate analysis based on dynamic element balance and thermal value discrimination method, and successful Application 300MW unit, net calorific value precision of prediction is higher.But, the method needs the real-time measurement of smoke evacuation composition and needs to carry out ash content correction.U.S.'s thermoelectricity develops coal supply elemental analyser based on rapid neutron activation analysis, calculates real-time net calorific value by software, but it relates to application and the management of radioactive source, in addition this product price and long-time maintenance cost higher, must apply far away at home.
Summary of the invention
An object of the present invention overcomes prior art defect, and provide a kind of structure comparatively simple, cost is low, easy to operate, and obtains the determinator of a solid mineral fuel high position and net calorific value fast;
An object of the present invention is to provide applying solid mineral fuel determinator that is high-order and net calorific value and carries out the gross calorific value of solid mineral fuel and the assay method of net calorific value.
For achieving the above object and some other objects, the technical scheme that the present invention proposes is:
A determinator for a solid mineral fuel high position and net calorific value, is characterized in that, comprising:
Reducing mechanism, it is the accommodating cavity that an inside is provided with cutter 13, and the sidewall of described reducing mechanism is reticulate texture, and described cancellated aperture is 1-6mm;
Thermal value test section, it comprises the first thermal value test section and the second thermal value test section of the annular staving that opening mutually fastens or is separated from each other, described first thermal value test section coaxial sleeve is located at the outside of described reducing mechanism, and the inner circle sidewall of described first thermal value test section does not contact with the lateral wall of described reducing mechanism, the cylindrical Sidewall Height of described first thermal value test section equals the height sum of the described inner circle sidewall of the first thermal value test section and the cancellated sidewall of described reducing mechanism, and the cylindrical Sidewall Height of described first thermal value test section and its inner circle Sidewall Height sum equal inner circle Sidewall Height and its cylindrical Sidewall Height sum of described second thermal value test section, heating portfire, it is arranged in the annular staving of described first thermal value test section,
Wherein, the airtight thermal value detection chambers of annular is formed when the opening of described first thermal value test section and described second thermal value test section fastens mutually.
Preferably, wherein, described cutter also comprises:
First axle, its axial direction along described reducing mechanism is arranged in described reducing mechanism;
Multiple cutter, its one end is arranged on described first axle, and described multiple cutter Spiral distribution is in the surrounding of the first axle.
Preferably, wherein, also comprise:
Support body, it comprises base and is arranged on the support bar on base;
Second axle, it is a threaded rod, and one end of described second axle is arranged with the coaxial tandem array of described first axle, and the other end of described second axle runs through along the axial direction of described second thermal value test section and extends in described supporting construction; Described second thermal value test section is connected with described second male thread by the web member of band nut, and what the opening of described second thermal value test section was rotated mutually fastens with described first thermal value test section opening or be separated from each other;
Lid, it is arranged on described second axle, and described lid is connected with described second male thread, the upper end open of the unlatching that described lid is rotated or closed described reducing mechanism.
Preferably, wherein, the sidewall of described thermal value test section or bottom surface include and are arranged on the metal level of inner side and the thermofin in outside.
Preferably, wherein, also comprise:
Weighing portion, it is arranged between described base and described first thermal value test section;
3rd axle, its one end is installed on described base, and the other end of described 3rd axle runs through the bottom that described weighing portion extends to described reducing mechanism, and described reducing mechanism rotates with the 3rd axle for supporting or remains static.
Preferably, wherein, also comprise:
Insulating collar, it is arranged on the described bottom surface of the second thermal value test section and the joining place of its sidewall, is kept apart in the bottom surface of described second thermal value test section and its sidewall.
Preferably, wherein, also comprise:
At least three temperature sensors, it is separately positioned in described first thermal value test section, on the sidewall of described second thermal value test section and the bottom surface of described second thermal value test section;
Draft tube, it is extended in described airtight thermal value detection chambers;
Drive unit, it drives described first axle, described second axle, described second axle, described second thermal value pick-up unit and lid respectively;
Data collector, it is electrically connected with described two temperature sensors and weighing portion.
Preferably, wherein, the minor increment between the inner circle sidewall of described first thermal value test section and the lateral wall of described reducing mechanism is less than 3mm.
Preferably, wherein, the profile of the annular staving of described second thermal value test section is inverted trapezoidal.
Application rights requires an assay method for the determinator of the high-order and net calorific value of solid mineral fuel according to any one of 1-9, it is characterized in that, comprises the following steps:
Step one, a certain amount of mineral fuel are added in reducing mechanism, start reducing mechanism and mineral fuel are thoroughly pulverized;
Step 2, start described reducing mechanism rotate, the mineral fuel of pulverizing are got rid of in described first thermal value test section by the reticulate texture of sidewall;
Step 3, weighing portion gather the weight of the first thermal value test section, until when its weight no longer increases, reducing mechanism stops the rotation, record the gravimetric value a in now weighing portion;
The heating function of step 4, startup heating portfire, make temperature in described first thermal value test section remain on 110-120 DEG C and dry mineral fuel, until stop when the weight of described first thermal value test section no longer increases drying, record the gravimetric value b in now weighing portion;
Step 5, start the second thermal value test section and rotate near the opening of described first thermal value test section along the second axle, and described second thermal value test section and described first thermal value test section are fastened mutually form described airtight thermal value detection chambers;
Step 6, gather the sidewall of described second thermal value test section, the side-wall metallic temperature value of the bottom surface of described second thermal value test section and described first thermal value test section is respectively c
1, d
1and e
1;
Step 7, unlatching draft tube, oxygen is passed in described airtight thermal value detection chambers, start the ignition function of heating portfire, mineral fuel are lighted, Thorough combustion, till described airtight thermal value detection chambers side-wall metallic temperature no longer changes, gather the sidewall of described second thermal value test section, the bottom surface of described second thermal value test section and the side-wall metallic temperature value c of described first thermal value test section
2, d
2and e
2;
Step 8, the gross calorific value calculating mineral fuel and net calorific value;
The side-wall metallic specific heat capacity of the sidewall of described second thermal value test section, the bottom surface of described second thermal value test section and described first thermal value test section is respectively Cp
1, Cp
2and Cp
3, quality is respectively m
1, m
2and m
3;
Gross calorific value=the m of mineral fuel
1* Cp
1(c
2-c
1)+m
2* Cp
2(d
2-d
1)+m
3* Cp
3(e
2-e
1);
Net calorific value=the m of mineral fuel
2* Cp
2(d
2-d
1).
Beneficial effect of the present invention:
Second thermal value test section supports by support body, just the second thermal value test section and described first thermal value test section can be fastened mutually when needs, make the first thermal value test section and the second thermal value test section or all do not contact with each other with reducing mechanism, weighing portion is made to realize carrying out precise to the weight of the first thermal value test section net weight and the mineral fuel after adding the weight of mineral fuel and drying, convenient and practical;
Thermofin can ensure that the heat of fossil-fuel-fired release is all absorbed by metal level, causes thermal loss hardly, ensure that the accuracy of measurement;
The bottom surface of the second thermal value test section and its sidewall keep apart by insulating collar, so that the heat discharged when the bottom surface that the water vapour calculating fossil-fuel-fired release runs into the second thermal value test section condenses into moisture is all distributed on the bottom surface of the second thermal value test section, can not with the migration of the sidewall generation heat of the second thermal value test section, ensure to detect the accuracy of net calorific value;
Minor increment between the inner circle sidewall of described first thermal value test section and the lateral wall of described reducing mechanism is less than 3mm; Arrange like this and can ensure that mineral fuel are when throwing away through the cancellated sidewall of reducing mechanism, do not have the gap that too much mineral fuel disintegrating slag drops between the inner circle sidewall of the first thermal value test section and reducing mechanism;
The determinator of a solid mineral fuel high position provided by the invention and net calorific value, by mineral fuel are pulverized in reducing mechanism, and then the mineral fuel after pulverizing are utilized the rotary motion of reducing mechanism self and the Action of Gravity Field of mineral fuel, directly sent into thermal value pick-up unit, the process of afterwards mineral fuel being dried and burning completely, a high position for quick acquisition mineral fuel and net calorific value, structure is simple, testing cost is low, detection time is short, automaticity is high, substantially increases work efficiency.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of a kind of embodiment of the determinator of a solid mineral fuel of the present invention high position and net calorific value.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to instructions word to make those skilled in the art.
Embodiment 1
As shown in Figure 1, a kind of implementation of the determinator of an a kind of solid mineral fuel high position and net calorific value is comprise:
Reducing mechanism 5, it is the accommodating cavity that an inside is provided with cutter 13, and the sidewall of reducing mechanism 5 is reticulate texture, and cancellated pore size is 1-6mm, thermal value test section, it comprises the first thermal value test section and the second thermal value test section 3 of the annular staving that opening mutually fastens or is separated from each other, first thermal value test section 6 coaxial sleeve is located at the outside of reducing mechanism 5, and the inner circle sidewall of the first thermal value test section 6 does not contact with the lateral wall of reducing mechanism 5, the cylindrical Sidewall Height of the first thermal value test section 6 equals the height sum of the inner circle sidewall of the first thermal value test section 6 and the cancellated sidewall of reducing mechanism 5, and the cylindrical Sidewall Height of the first thermal value test section 6 and its inner circle Sidewall Height sum equal inner circle Sidewall Height and its cylindrical Sidewall Height sum of the second thermal value test section 3, heating portfire 10, it is arranged in the annular staving of the first thermal value test section 6, wherein, the airtight thermal value detection chambers of annular is formed when the opening of the first thermal value test section 6 and the second thermal value test section 3 fastens mutually.
In such scheme, the determinator of a solid mineral fuel high position provided by the invention and net calorific value, by mineral fuel are pulverized in reducing mechanism, and then the mineral fuel after pulverizing are utilized the rotary motion of reducing mechanism self and the Action of Gravity Field of mineral fuel, directly sent into thermal value pick-up unit, the process of afterwards mineral fuel being dried and burning completely, a high position for quick acquisition mineral fuel and net calorific value, structure is simple, testing cost is low, detection time is short, and automaticity is high, substantially increases work efficiency.
Wherein, cutter 13 also comprises: the first axle 9, and its axial direction along reducing mechanism 5 is arranged in reducing mechanism 5; Multiple cutter 13, its one end is arranged on the first axle 9, and multiple cutter 13 Spiral distribution is in the surrounding of the first axle 9.
Wherein, also comprise: support body, it comprises base 7 and is arranged on the support bar 4 on base 7; Second axle 1, it is a threaded rod, and one end of the second axle 1 is arranged with the coaxial tandem array of the first axle 9, and the other end of the second axle 1 runs through along the axial direction of the second thermal value test section 3 and extends in supporting construction; Second thermal value test section 3 is connected with the second male thread by the web member 2 of band nut, and what the opening of the second thermal value test section 3 was rotated mutually fastens with the first thermal value test section 6 opening or be separated from each other; Lid 14, it is arranged on the second axle 1, and lid 14 is threaded with the second axle 1, the unlatching that lid 14 is rotated or the upper end open of closed reducing mechanism 5.
In such scheme, by support body, the second thermal value test section is supported, just the second thermal value test section and described first thermal value test section can be fastened mutually when needs, make the first thermal value test section and the second thermal value test section or all do not contact with each other with reducing mechanism, weighing portion is made to realize carrying out precise to the weight of the first thermal value test section net weight and the mineral fuel after adding the weight of mineral fuel and drying, convenient and practical.
Wherein, the sidewall of thermal value test section or bottom surface include and are arranged on the metal level of inner side and the thermofin in outside.
In such scheme, thermofin can ensure that the heat of fossil-fuel-fired release is all absorbed by metal level, causes thermal loss hardly, ensure that the accuracy of measurement.
Weighing portion 11, it is arranged between base 7 and the first thermal value test section 6; 3rd axle 8, its one end is installed on base 7, and the other end of the 3rd axle 8 runs through the bottom that described weighing portion extends to reducing mechanism 5, and reducing mechanism 5 to rotate for support with the 3rd axle 8 or remains static.
Wherein, also comprise:
Insulating collar 15, it is arranged on the bottom surface of the second thermal value test section 3 and the joining place of its sidewall, is kept apart in the bottom surface of the second thermal value test section 3 and its sidewall.
In such scheme, the bottom surface of the second thermal value test section and its sidewall keep apart by insulating collar 15, so that the heat discharged when the bottom surface that the water vapour calculating fossil-fuel-fired release runs into the second thermal value test section condenses into moisture is all distributed on the bottom surface of the second thermal value test section, can not with the migration of the sidewall generation heat of the second thermal value test section, ensure to detect the accuracy of net calorific value.
Wherein, also comprise:
At least three temperature sensors, it is separately positioned in the first thermal value test section 6, on the sidewall of the second thermal value test section 3 and the bottom surface of the second thermal value test section 3; Draft tube 12, it is extended in airtight thermal value detection chambers; Drive unit, it drives the first axle 9, second axle 1, second axle 1, described second thermal value pick-up unit and lid 14 respectively; Data collector, it is electrically connected with two temperature sensors and weighing portion.
Wherein, the minor increment between the inner circle sidewall of the first thermal value test section 6 and the lateral wall of reducing mechanism 5 is less than 3mm.Arrange like this and can ensure that mineral fuel are when throwing away through the cancellated sidewall of reducing mechanism, do not have the gap that too much mineral fuel disintegrating slag drops between the inner circle sidewall of the first thermal value test section and reducing mechanism.
Wherein, the profile of the annular staving of the second thermal value test section 3 is inverted trapezoidal.
Embodiment 2
As shown in Figure 1, the assay method of the determinator of an a kind of applying solid mineral fuel high position and net calorific value, comprises the following steps:
Step one, a certain amount of mineral fuel are added in reducing mechanism 5, start reducing mechanism 5 and mineral fuel are thoroughly pulverized; Needed lid to be rotated down the opening part being fastened on reducing mechanism before startup reducing mechanism, make mineral fuel to be thrown out of reducing mechanism, damage other structures;
Step 2, startup reducing mechanism 5 rotate, and get rid of in the first thermal value test section 6 by the mineral fuel of pulverizing by the reticulate texture of sidewall;
Step 3, weighing portion 11 gather the weight of the first thermal value test section 6, until when its weight no longer increases, reducing mechanism 5 stops the rotation, and records the gravimetric value a in now weighing portion 11;
The heating function of step 4, startup heating portfire 10, make temperature in the first thermal value test section 6 remain on 110-120 DEG C and dry mineral fuel, until stop when the weight of the first thermal value test section 6 no longer increases drying, record the gravimetric value b in now weighing portion 11;
Step 5, start the second thermal value test section 3 and rotate opening near the first thermal value test section 6 along the second axle 1, and make mutual fastening of the second thermal value test section 3 and the first thermal value test section 6 form airtight thermal value detection chambers;
Step 6, gather the sidewall of the second thermal value test section 3, the side-wall metallic temperature value of the bottom surface of the second thermal value test section 3 and the first thermal value test section 6 is respectively c
1, d
1and e
1;
Step 7, unlatching draft tube 12, oxygen is passed in airtight thermal value detection chambers, start the ignition function of heating portfire 10, mineral fuel are lighted, Thorough combustion, till airtight thermal value detection chambers side-wall metallic temperature no longer changes, gather the sidewall of the second thermal value test section 3, the bottom surface of the second thermal value test section 3 and the side-wall metallic temperature value c of the first thermal value test section 6
2, d
2and e
2;
Step 8, the gross calorific value calculating mineral fuel and net calorific value;
The metal level specific heat capacity of the sidewall of the sidewall of the second thermal value test section 3, the bottom surface of the second thermal value test section 3 and the first thermal value test section 6 is respectively Cp
1, Cp
2and Cp
3, quality is respectively m
1, m
2and m
3;
Gross calorific value=the m of mineral fuel
1* Cp
1(c
2-c
1)+m
2* Cp
2(d
2-d
1)+m
3* Cp
3(e
2-e
1);
Net calorific value=the m of mineral fuel
2* Cp
2(d
2-d
1);
The water cut that application the method for the invention can also detect mineral fuel is=(a-b)/a;
Metal level can be copper, aluminium, steel or zinc etc.
Although embodiment of the present invention are open as above, but it is not restricted to listed in instructions and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. a determinator for a solid mineral fuel high position and net calorific value, is characterized in that, comprising:
Reducing mechanism, it is the accommodating cavity that an inside is provided with cutter, and the sidewall of described reducing mechanism is reticulate texture, and described cancellated aperture is 1-6mm;
Thermal value test section, it comprises the first thermal value test section and the second thermal value test section of the annular staving that opening mutually fastens or is separated from each other, described first thermal value test section coaxial sleeve is located at the outside of described reducing mechanism, and the inner circle sidewall of described first thermal value test section does not contact with the lateral wall of described reducing mechanism, the cylindrical Sidewall Height of described first thermal value test section equals the height sum of the described inner circle sidewall of the first thermal value test section and the cancellated sidewall of described reducing mechanism, and the cylindrical Sidewall Height of described first thermal value test section and its inner circle Sidewall Height sum equal inner circle Sidewall Height and its cylindrical Sidewall Height sum of described second thermal value test section, heating portfire, it is arranged in the annular staving of described first thermal value test section,
Wherein, the airtight thermal value detection chambers of annular is formed when the opening of described first thermal value test section and described second thermal value test section fastens mutually.
2. the determinator of a solid mineral fuel high position as claimed in claim 1 and net calorific value, it is characterized in that, described cutter also comprises:
First axle, its axial direction along described reducing mechanism is arranged in described reducing mechanism;
Multiple cutter, its one end is arranged on described first axle, and described multiple cutter Spiral distribution is in the surrounding of the first axle.
3. the determinator of a solid mineral fuel high position as claimed in claim 2 and net calorific value, is characterized in that, also comprise:
Support body, it comprises base and is arranged on the support bar on base;
Second axle, it is a threaded rod, and one end of described second axle is arranged with the coaxial tandem array of described first axle, and the other end of described second axle runs through along the axial direction of described second thermal value test section and extends in described supporting construction; Described second thermal value test section is connected with described second male thread by the web member of band nut, and what the opening of described second thermal value test section was rotated mutually fastens with described first thermal value test section opening or be separated from each other;
Lid, it is arranged on described second axle, and described lid is connected with described second male thread, the upper end open of the unlatching that described lid is rotated or closed described reducing mechanism.
4. the determinator of a solid mineral fuel high position as claimed in claim 3 and net calorific value, is characterized in that, the sidewall of described thermal value test section or bottom surface include and be arranged on the metal level of inner side and the thermofin in outside.
5. the determinator of a solid mineral fuel high position as claimed in claim 4 and net calorific value, is characterized in that, also comprise:
Weighing portion, it is arranged between described base and described first thermal value test section;
3rd axle, its one end is installed on described base, and the other end of described 3rd axle runs through the bottom that described weighing portion extends to described reducing mechanism, and described reducing mechanism rotates with the 3rd axle for supporting or remains static.
6. the determinator of a solid mineral fuel high position as claimed in claim 5 and net calorific value, is characterized in that, also comprise:
Insulating collar, it is arranged on the described bottom surface of the second thermal value test section and the joining place of its sidewall, is kept apart in the bottom surface of described second thermal value test section and its sidewall.
7. the determinator of a solid mineral fuel high position as claimed in claim 6 and net calorific value, is characterized in that, also comprise:
At least three temperature sensors, it is separately positioned in described first thermal value test section, on the sidewall of described second thermal value test section and the bottom surface of described second thermal value test section;
Draft tube, it is extended in described airtight thermal value detection chambers;
Drive unit, it drives described first axle, described second axle, described second axle, described second thermal value pick-up unit and lid respectively;
Data collector, it is electrically connected with described two temperature sensors and weighing portion.
8. the determinator of a solid mineral fuel high position as claimed in claim 1 and net calorific value, it is characterized in that, the minor increment between the inner circle sidewall of described first thermal value test section and the lateral wall of described reducing mechanism is less than 3mm.
9. the determinator of a solid mineral fuel high position as claimed in claim 7 and net calorific value, it is characterized in that, the profile of the annular staving of described second thermal value test section is inverted trapezoidal.
10. application rights requires an assay method for the determinator of the high-order and net calorific value of solid mineral fuel according to any one of 1-9, it is characterized in that, comprises the following steps:
Step one, a certain amount of mineral fuel are added in reducing mechanism, start reducing mechanism and mineral fuel are thoroughly pulverized;
Step 2, start described reducing mechanism rotate, the mineral fuel of pulverizing are got rid of in described first thermal value test section by the reticulate texture of sidewall;
Step 3, weighing portion gather the weight of the first thermal value test section, until when its weight no longer increases, reducing mechanism stops the rotation, record the gravimetric value a in now weighing portion;
The heating function of step 4, startup heating portfire, make temperature in described first thermal value test section remain on 110-120 DEG C and dry mineral fuel, until stop when the weight of described first thermal value test section no longer increases drying, record the gravimetric value b in now weighing portion;
Step 5, start the second thermal value test section and rotate near the opening of described first thermal value test section along the second axle, and described second thermal value test section and described first thermal value test section are fastened mutually form described airtight thermal value detection chambers;
Step 6, gather the sidewall of described second thermal value test section, the side-wall metallic temperature value of the bottom surface of described second thermal value test section and described first thermal value test section is respectively c
1, d
1and e
1;
Step 7, unlatching draft tube, oxygen is passed in described airtight thermal value detection chambers, start the ignition function of heating portfire, mineral fuel are lighted, Thorough combustion, till described airtight thermal value detection chambers side-wall metallic temperature no longer changes, gather the sidewall of described second thermal value test section, the bottom surface of described second thermal value test section and the side-wall metallic temperature value c of described first thermal value test section
2, d
2and e
2;
Step 8, the gross calorific value calculating mineral fuel and net calorific value;
The side-wall metallic specific heat capacity of the sidewall of described second thermal value test section, the bottom surface of described second thermal value test section and described first thermal value test section is respectively Cp
1, Cp
2and Cp
3, quality is respectively m
1, m
2and m
3;
Gross calorific value=the m of mineral fuel
1* Cp
1(c
2-c
1)+m
2* Cp
2(d
2-d
1)+m
3* Cp
3(e
2-e
1);
Net calorific value=the m of mineral fuel
2* Cp
2(d
2-d
1).
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|---|---|---|---|
| CN201410824919.2A CN104535613B (en) | 2014-12-26 | 2014-12-26 | Device and method for measuring higher and lower heating values of solid mineral fuel |
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|---|---|---|---|
| CN201410824919.2A CN104535613B (en) | 2014-12-26 | 2014-12-26 | Device and method for measuring higher and lower heating values of solid mineral fuel |
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| CN104535613A true CN104535613A (en) | 2015-04-22 |
| CN104535613B CN104535613B (en) | 2017-02-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105807026A (en) * | 2015-12-18 | 2016-07-27 | 武汉科技大学 | Estimation method for higher heating value of biomass-plastic mixed fuel |
| CN109781785A (en) * | 2019-01-31 | 2019-05-21 | 成都市兴蓉再生能源有限公司 | A kind of sludge-rubbish collaboration burning mixed material heating-value determination method |
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| CN105807026A (en) * | 2015-12-18 | 2016-07-27 | 武汉科技大学 | Estimation method for higher heating value of biomass-plastic mixed fuel |
| CN109781785A (en) * | 2019-01-31 | 2019-05-21 | 成都市兴蓉再生能源有限公司 | A kind of sludge-rubbish collaboration burning mixed material heating-value determination method |
| CN109781785B (en) * | 2019-01-31 | 2021-06-15 | 成都市兴蓉再生能源有限公司 | Method for measuring heat value of sludge-garbage co-incineration mixed material |
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