JP2009198124A - Fuel monitoring device, boiler facility, and mixing ratio determining method of fuel oil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel monitoring device, a boiler facility, and a mixing ratio determining method for fuel oil quickly measuring the mixing ratio of palm stearin oil and C heavy oil. <P>SOLUTION: The fuel monitoring device 10A has a mixed fuel extracting passage 12 extracting one part of mixed fuel 11 comprised of adding the C heavy oil to the palm stearin oil, a mixed fuel adjusting device 13 adjusting the extracted mixed fuel into a sample for measurement, a fuel mixing ratio measuring device 14 interposed in the mixed fuel extracting passage 12 to measure a mixing ratio of the palm stearin oil and the C heavy oil in the mixed fuel 11 adjusted by the mixed fuel adjusting device 13, and a mixed fuel extracting pump 15 continuously supplying the mixed fuel 11 to the fuel mixing ratio measuring device 14. By continuously supplying the extracted mixed fuel 11 to the fuel mixing ratio measuring device 14 via the mixed oil extracting passage 12, the mixing ratio of the palm stearin oil and the C heavy oil in the mixed fuel 11 can be continuously measured. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fuel monitoring device, a boiler facility, and a fuel oil mixture ratio determination method for measuring a mixture ratio of palm stearin oil and C heavy oil as a mixed oil.

  In recent years, biofuels have attracted attention because of rising oil prices, depletion of fossil fuels, and small amounts of harmful substances such as SOx in exhaust gas. Some power generation boilers use, as fuel oil, a mixed oil obtained by mixing palm stearin oil and C heavy oil in a ratio of, for example, 3: 7. A certain amount of palm stearin oil and C heavy oil is supplied from each fuel tank according to the mixing ratio of each fuel oil, and mixed oil of palm stearin oil and C heavy oil is mixed in the pipe and supplied to the boiler. .

  Moreover, when measuring the mixing ratio of the mixed oil of palm stearin oil and C heavy oil, it is carried out by a batch method, and the specific gravity of the mixed oil is generally measured by floating (floating) using a floating hydrometer. ing. The float-only method using a float-type hydrometer is a method that measures specific gravity from buoyancy, floats a given float on a liquid sample, reads the scale of the float that matches the meniscus, and measures the mixing ratio of the mixed oil (See Non-Patent Document 1).

  A measurement process diagram is shown in FIG. 11, and a schematic diagram of a floating hydrometer is shown in FIG. As shown in FIGS. 11 and 12, a part of the mixed oil 101 is collected (step 11), for example, about 400 ml of the mixed oil 101 is put into a 500 ml measuring cylinder 102 (step 12), and the temperature of the mixed oil 101 is set. Measure (Step 13). Then, the specific gravity of the mixed oil 101 is measured from the specific gravity reading 104 using a floating hydrometer 103 as shown in FIG. 12 (step 14).

Japanese Industrial Standards JIS K2249 (crude oil and petroleum products-density test method and density / mass / capacity conversion table)

  However, when using mixed oil as fuel oil for power generation boilers, if the mixing ratio of palm stearin oil and C heavy oil cannot be continuously monitored, it becomes difficult to control combustion such as the required air amount and heat load, There is a problem that stable combustion conditions cannot be maintained.

  In addition, the general properties of palm stearin oil and C heavy oil are not much different in specific gravity between palm stearin oil and C heavy oil as shown in FIG. 13 (for example, palm stearin oil: about 0.9113 at 15 ° C., C heavy oil: Therefore, there is a problem that it is very difficult to obtain the mixing ratio of the mixed oil from the floating hydrometer in consideration of the accuracy of the specific gravity that can be measured with the floating hydrometer.

  Further, when measuring the specific gravity of the mixed oil, there is a problem that it takes time from the sampling to the measurement of the specific gravity, and the result cannot be quickly fed back to the driving side.

  This invention makes it a subject to provide the fuel monitoring apparatus which measures the mixing ratio of palm stearin oil and C heavy oil rapidly, boiler equipment, and the mixing ratio determination method of fuel oil in view of the said problem.

  In order to solve the above-described problems, the first invention of the present invention is configured to adjust the extracted mixed oil for measurement, and a mixed oil extraction passage for extracting a part of the mixed oil obtained by adding the added fuel to the heavy oil fuel. A mixed oil adjusting device, and a fuel mixture ratio measuring device interposed in the mixed oil extraction passage for measuring a mixing ratio between the added fuel and the heavy oil fuel in the mixed oil adjusted by the mixed oil adjusting device; And a mixed oil supply means for continuously supplying the mixed oil to the fuel mixture ratio measuring device.

  According to a second aspect, in the first aspect, the fuel mixture ratio measuring device is absorbed by the liquid oil that contains the mixed oil, the infrared irradiation device that irradiates the liquid cell with infrared rays, and the mixed oil. A fuel monitoring apparatus having a detector for detecting an infrared wavelength.

  A third invention is characterized in that, in the first or second invention, the mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. In the fuel monitoring device.

  A fourth invention is the invention according to the second or third invention, wherein the added fuel is any one of palm stearin oil, tempura oil, waste oil, and alcohol, and the heavy oil-based fuel is C heavy oil, crude oil, heavy oil The fuel monitoring device is any one of oil.

5th invention WHEREIN: When the said addition fuel is palm stearin oil and the said heavy oil type fuel is C heavy oil in 4th invention, the mixing ratio of the said addition fuel and the said heavy oil type fuel previously, and the said time at that time 1740cm around ^-1 oil mixture, or 1160 cm ^-1 determined a calibration curve showing the relationship between the absorbance in the vicinity of, the heavy oil system and the addition of fuel from the absorbance of the mixed oil obtained by detecting the mixed oil withdrawn A fuel monitoring apparatus is characterized in that a mixing ratio with fuel is obtained.

According to a sixth invention, in the fourth invention, when the added fuel is a tempura oil, a mixture ratio of the added fuel and the heavy oil fuel and an absorbance around 1700 cm ^{−1 of the} mixed oil at that time are obtained in advance. A fuel monitoring device characterized in that a calibration curve representing a relationship is obtained, and a mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. .

According to a seventh invention, in the fourth invention, when the added fuel is alcohol, a relationship between a mixing ratio of the added fuel and the heavy oil fuel and an absorbance of the mixed oil at around 1600 cm ⁻¹ at that time in advance. Is obtained, and the mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil.

  An eighth invention is the fuel monitoring apparatus according to any one of the first to seventh inventions, wherein the mixed oil adjusting device has a heating means for heating the mixed oil.

  According to a ninth invention, in any one of the first to eighth inventions, an organic solvent supply means for adding an organic solvent to the mixed oil extraction passage in either or both of the upstream side and the upstream side of the mixed oil adjusting device The fuel monitoring apparatus is characterized by comprising:

  A tenth aspect of the invention is the calibration curve of the organic solvent in the ninth aspect, wherein the organic solvent calibration curve represents the relationship between the dilution rate of the organic solvent added to the previously prepared mixed oil and the absorbance near the wavelength obtained from the organic solvent. Using the absorbance near the wavelength obtained from the organic solvent to determine the dilution rate of the organic solvent, the organic representing the relationship between the dilution rate of the organic solvent prepared in advance and the absorbance of the added fuel diluted with the organic solvent The absorbance of the added fuel is obtained from the dilution rate of the organic solvent using a calibration curve of the solvent, and the added fuel representing the relationship between the mixing rate of the added fuel and the absorbance of the added fuel in the previously prepared mixed oil The fuel monitoring apparatus is characterized in that the mixing ratio of the added fuel is obtained from the absorbance of the added fuel using a calibration curve.

  An eleventh invention is the fuel monitoring apparatus according to the ninth or tenth invention, wherein the organic solvent is at least one of carbon tetrachloride, carbon disulfide, hexane, benzene, and acetone. is there.

  A twelfth aspect of the present invention is the fuel according to any one of the ninth to eleventh aspects, further comprising a mixed oil sealing means provided in the mixed oil extraction passage and configured to seal the mixed oil in the liquid cell. In the monitoring device.

  A thirteenth aspect of the invention includes a heavy oil fuel tank that stores heavy oil fuel, an added fuel tank that stores added fuel, a heavy oil fuel feed line that feeds the heavy oil fuel to the boiler, and the added fuel. An added fuel feed line for feeding the boiler to the boiler, a line mixer for mixing the heavy oil fuel and the added fuel, and a mixed oil of the heavy oil fuel and the added fuel mixed in the line mixer. The mixed oil supply line that supplies the boiler from the line mixer, the mixed oil extraction line that extracts a part of the mixed oil to the mixed oil supply line, and the mixed oil extraction line. A boiler facility having any one of 1 to 12 fuel monitoring devices.

  In a fourteenth aspect of the present invention, a part of the mixed oil obtained by adding the added fuel to the heavy oil fuel is extracted, the extracted mixed oil is continuously supplied to the liquid cell, the infrared irradiation is applied to the liquid cell, and the mixing is performed. A fuel characterized in that a mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting an infrared wavelength absorbed by the oil and detecting the extracted mixed oil. The method is to determine the mixing ratio of oil.

  According to a fifteenth aspect, in the fourteenth aspect, the additive fuel is any one of palm stearin oil, tempura oil, waste oil, and alcohol, and the heavy oil-based fuel is C heavy oil, crude oil, or heavy oil. The fuel oil mixing ratio determination method is characterized by being any one.

In a sixteenth aspect based on the fifteenth aspect, when the added fuel is palm stearin oil and the heavy oil fuel is C heavy oil, a mixing ratio of the added fuel and the heavy oil fuel determined in advance is obtained. determining the mixing ratio of said heavy oil based fuel and the added fuel the vicinity oil mixture of 1740 cm ^-1, or a calibration curve showing the relationship between the absorbance of 1160cm around ^-1 from the detected the mixed oil absorbance using a This is a fuel oil mixing ratio determination method.

According to a seventeenth aspect, in the fifteenth aspect, when the added fuel is a tempura oil, the mixing ratio of the added fuel and the heavy oil fuel obtained in advance and the absorbance of the mixed oil in the vicinity of 1700 cm ^-1 are obtained. In the fuel oil mixture ratio determination method, the mixture ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil detected using a calibration curve representing the relationship between

In an eighteenth aspect based on the fifteenth aspect, when the added fuel is alcohol, the mixing ratio of the added fuel and the heavy oil fuel obtained in advance and the absorbance of the mixed oil in the vicinity of 1600 cm ⁻¹ are obtained. In the fuel oil mixture ratio determination method, a mixture ratio between the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil detected using a calibration curve representing the relationship of

  According to a nineteenth aspect of the invention, there is provided a fuel oil mixture ratio determination method according to any one of the fourteenth to eighteenth aspects, wherein the extracted mixed oil is heated and then measured.

  A twentieth aspect of the invention is a fuel oil mixture ratio determination method according to any one of the fourteenth aspect to the nineteenth aspect, wherein an organic solvent is added to the extracted mixed oil and then measured.

  In a twenty-first aspect of the present invention, in any one of the fourteenth to twentieth aspects, the relationship between the dilution rate of the organic solvent added to the previously prepared mixed oil and the absorbance near the wavelength obtained from the organic solvent is expressed. Obtain the dilution rate of the organic solvent from the absorbance near the wavelength obtained from the organic solvent using a calibration curve of the organic solvent, the dilution rate of the organic solvent prepared in advance and the absorbance of the added fuel diluted with the organic solvent, The absorbance of the added fuel is determined from the dilution rate of the organic solvent using the calibration curve of the organic solvent representing the relationship of the relationship, and the relationship between the mixing rate of the added fuel and the absorbance of the added fuel in the previously prepared mixed oil In the fuel oil mixture ratio determination method, the mixing ratio of the added fuel is obtained from the absorbance of the added fuel using the calibration curve of the added fuel.

  According to a twenty-second aspect, in any one of the fourteenth to twenty-first aspects, the organic solvent is at least one of carbon tetrachloride, carbon disulfide, hexane, benzene, and acetone. It is in the fuel oil mixing ratio determination method.

  A twenty-third aspect of the invention is the fuel oil mixing ratio determination method according to any one of the twentieth to twenty-second aspects, wherein the mixed oil is measured after being sealed in the liquid cell.

  According to the present invention, a mixed oil extraction passage for extracting a part of a mixed oil obtained by adding an added fuel to a heavy oil fuel, a mixed oil adjusting device for adjusting the extracted mixed oil for measurement, and the mixed oil adjustment A fuel mixture ratio measuring device interposed in the mixed oil extraction passage for measuring a mixture ratio of the added fuel and the heavy oil fuel in the mixed oil adjusted by the device; and the mixing in the fuel mixture ratio measuring device Since it has the mixed oil supply means which supplies oil continuously, the mixing ratio of the added fuel and the heavy oil fuel in the mixed oil can be continuously measured.

  The fuel mixture ratio measuring device includes a liquid cell that contains the mixed oil, an infrared irradiation device that irradiates the liquid cell with infrared rays, and a detector that detects an infrared wavelength absorbed by the mixed oil. Since it is possible to irradiate the mixed oil with infrared rays and detect the absorbed infrared wavelength, the mixing ratio of the added fuel and the heavy oil fuel in the mixed oil is observed. be able to.

When the added fuel is palm stearin oil and the heavy oil fuel is C heavy oil, the mixture ratio of the palm stearin oil and the heavy oil fuel and the vicinity of 1740 cm ^{-1 of the} mixed oil at that time, or A calibration curve representing the relationship with the absorbance near 1160 cm ⁻¹ is obtained, and by detecting the extracted mixed oil, the mixing ratio of the palm stearin oil and the heavy oil fuel is obtained from the absorbance of the obtained mixed oil. be able to.

Further, when the added fuel is tempura oil, a calibration curve representing the relationship between the mixing ratio of the tempura oil and the heavy oil-based fuel and the absorbance at around 1700 cm ^{−1 of the} mixed oil at that time was obtained and extracted. By detecting the mixed oil, the mixing ratio of the tempura oil and the heavy oil fuel can be obtained from the absorbance of the obtained mixed oil.

Further, when the added fuel is alcohol, a calibration curve representing the relationship between the mixing ratio of the alcohol and the heavy oil fuel and the absorbance around 1600 cm ^{−1 of the} mixed oil at that time is obtained in advance, and the extracted mixed oil By detecting this, the mixing ratio of the alcohol and the heavy oil fuel can be determined from the absorbance of the obtained mixed oil.

  In addition, since the mixed oil adjusting device has a heating means for heating the mixed oil, the fluidity of the extracted mixed oil can be improved, and the mixed oil stored in the fuel mixture ratio measuring device can be easily replaced. it can.

  In addition, by having an organic solvent supply means for adding an organic solvent to the mixed oil extraction passage inside or to the upstream side of the mixed oil adjusting device, the fluidity of the mixed oil can be improved, The mixed oil stored in the fuel mixture ratio measuring device can be easily replaced. In addition, since the water in the mixed oil is diluted, interference during measurement due to water can be reduced.

  Further, it is possible to remove contamination caused by organic substances, moisture, etc. of the liquid cell due to long-term use of the fuel mixture ratio measuring apparatus.

  Further, the vicinity of the wavelength obtained from the organic solvent using the calibration curve of the organic solvent representing the relationship between the dilution ratio of the organic solvent added to the previously prepared mixed oil and the absorbance near the wavelength obtained from the organic solvent. The dilution ratio of the organic solvent is determined from the absorbance of the organic solvent, and a calibration curve of the organic solvent is used to express the relationship between the dilution ratio of the organic solvent prepared in advance and the absorbance of the added fuel diluted with the organic solvent. The absorbance of the added fuel is obtained from the dilution rate of the added fuel, and the added fuel calibration curve representing the relationship between the mixing rate of the added fuel and the absorbance of the added fuel in the previously prepared mixed oil is used. The mixing ratio of the added fuel can be obtained from the absorbance of

  The mixed oil is provided in the mixed oil extraction passage, and has mixed oil sealing means for sealing the mixed oil in the liquid cell, so that the mixed oil is sealed in the liquid cell, and the liquid cell is put in the liquid cell. Since measurement can be performed a plurality of times using a sample of the mixed oil, analysis sensitivity can be improved by accumulating the number of integrations at the time of measurement, and the accuracy of the obtained light absorption height can be improved.

  Hereinafter, the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

A fuel monitoring apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a conceptual diagram schematically showing the configuration of a fuel monitoring apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 1, a fuel monitoring apparatus 10A according to this embodiment includes a mixed oil extraction passage 12 for extracting a part of a mixed oil 11 obtained by adding palm stearin oil as an added fuel to C heavy oil as a heavy oil-based fuel. The mixed oil adjusting device 13 for adjusting the extracted mixed oil for the measurement sample, and the mixing ratio of the palm stearin oil and the C heavy oil in the mixed oil 11 adjusted by the mixed oil adjusting device 13 are measured. It has a fuel mixture ratio measuring device 14 interposed in the mixed oil extraction passage 12, and a mixed oil extraction pump (mixed oil supply means) 15 for continuously supplying the mixed oil 11 to the fuel mixture ratio measuring device 14. is there.

  The mixed oil 11 in the fuel pipe 16 can be extracted to the mixed oil extraction passage 12 by the mixed oil extraction pump 15, and the mixed oil 11 can be continuously supplied to the fuel mixture ratio measuring device 14 through the mixed oil extraction passage 12. Therefore, the mixing ratio of palm stearin oil and C heavy oil in the mixed oil 11 can be continuously measured.

  In the fuel monitoring device 10A according to the present embodiment, the fuel mixture ratio measuring device 14 includes a liquid cell 17 that contains the mixed oil 11, an infrared irradiation device (not shown) that irradiates the liquid cell 17 with infrared rays, and a mixed oil. 11 and a detector 18 for detecting the infrared wavelength absorbed by the sensor 11. As the fuel mixture ratio measuring device 14, for example, an FT-IR device is used, as long as an absorption peak is observed from the mixed oil 11 by irradiating infrared rays, and the present invention is not limited to this. Absent.

Calibration in the fuel monitoring apparatus 10A according to the first embodiment, showing the relationship between the advance the palm stearin oil and mixing ratio with around 1740 cm ^-1 of the mixed oil 11 at that time with the C heavy oil, or 1160 cm ^-1 vicinity absorbance A line is obtained, and the mixing ratio of the palm stearin oil and the C heavy oil is obtained from the absorbance of the mixed oil 11 obtained by detecting the extracted mixed oil 11.

The extracted mixed oil 11 is continuously supplied to the liquid cell 17, the infrared light is irradiated to the liquid cell 17, and the infrared wavelength absorbed by the mixed oil 11 is detected. Then, the detected infrared wavelength information is transmitted to the data processing device 19. Then, it was detected using the palm stearin oil obtained in advance and the vicinity of 1740 cm ^-1 of the mixing ratio and mixed oil 11 with C heavy oil, or a calibration curve showing the relationship between the absorbance of 1160cm around ^-1 mixed The mixing ratio of the palm stearin oil and the C heavy oil is determined from the absorbance of the oil 11.

FIG. 2 is a diagram showing infrared absorption spectra of palm stearin oil and C heavy oil.
As shown in FIG. 2, the palm stearin oil, (in FIG. 2, arrow A) 1740 cm near ^-1 (in FIG. 2, arrow B) and 1160 cm ^-1 vicinity, the characteristic absorption peak due to an ester bond is observed And not observed from C heavy oil. Therefore, it is possible to determine the mixing ratio of palm stearin oil by measuring the ^-1 vicinity, or 1160 cm ^-1 vicinity absorbance 1740 cm.

Previously, calibration based on the mixing ratio of the known amount of palm mixed stearin oil and C fuel oil 1740cm around ^-1 of several standard samples were prepared, or 1160 cm ^-1 vicinity of absorbance and palm stearin oil and heavy fuel oil C Create a line.

FIG. 3 is a graph showing the relationship between the mixing ratio of palm stearin oil and the absorbance when the wave number is 1740 cm ⁻¹ . As shown in FIG. 3, the mixing ratio of palm stearin oil can be obtained from the absorbance when the wave number of the mixed oil 11 is around 1740 cm ⁻¹ based on a calibration curve obtained from the absorbance corresponding to the mixing ratio of palm stearin oil. .

Thus, around 1740 cm ^-1 of the mixed oil 11, or the absorption peak intensity of 1160cm around ^-1 measured, it is possible to obtain the mixing ratio of mixed oil 11 by comparing with a previously prepared calibration curve shown in FIG. 3 it can.

In addition to palm stearin oil, examples of the additive fuel include tempura oil, waste oil, alcohol, and the like. When tempura oil is used as the additive fuel, an absorption peak in the vicinity of 1700 cm ⁻¹ derived from the carboxylic acid of tempura oil can be obtained. A calibration curve representing the relationship with the absorbance near 1700 cm ⁻¹ is obtained, and the mixing ratio of the tempura oil and the C heavy oil is obtained from the absorbance of the mixed oil 11 obtained by detecting the extracted mixed oil 11. .

When alcohol (methanol, ethanol, etc.) is used as the additive fuel, an absorption peak near 1600 cm ⁻¹ derived from the hydroxy group of the alcohol can be obtained. A calibration curve representing the relationship with the absorbance of the mixed oil 11 near 1600 cm ⁻¹ is obtained, and the mixing ratio of alcohol and C heavy oil is determined from the absorbance of the mixed oil 11 obtained by detecting the extracted mixed oil 11. Try to ask.

As described above, according to the fuel monitoring device 10A according to the present embodiment, the mixed oil extraction passage 12 for extracting a part of the mixed oil 11, the mixed oil adjusting device 13 for adjusting the extracted mixed oil for measurement, A fuel mixture ratio measuring device 14 for measuring the mixing ratio of the palm stearin oil and the C heavy oil in the mixed oil 11 adjusted by the mixed oil adjusting device 13, and the mixed oil 11 continuously in the fuel mixture ratio measuring device 14 Therefore, the mixed oil 11 can be continuously supplied to the fuel mixture ratio measuring device 14 through the mixed oil extraction passage 12. Then, pre-determined and the palm stearin oil had been the mixing ratio of the C heavy oil near 1740 cm ^-1 of the mixed oil 11 at that time, or 1160 cm ^-1 vicinity calibration as shown in FIG. 3 representing a relationship between the absorbance of the From the line, the mixing ratio of the palm stearin oil and C heavy oil of the mixed oil 11 can be continuously measured. Thereby, the stable combustion of a boiler can be hold | maintained.

  In the present embodiment, the C heavy oil is used as the heavy oil-based fuel. However, the present invention is not limited to this, and any one of crude oil, heavy oil, and the like may be used.

  Moreover, although the present Example demonstrated using the mixed oil which mixed two types of palm stearin oil and C heavy oil, it is not limited to this, You may use several other different fuel oil. .

A fuel monitoring apparatus according to a second embodiment of the present invention will be described with reference to FIG.
FIG. 4 is a conceptual diagram schematically showing the configuration of the fuel monitoring apparatus according to the second embodiment of the present invention.
As shown in FIG. 4, the fuel monitoring apparatus 10B according to the present embodiment has the same configuration as the fuel monitoring apparatus 10A according to the first embodiment shown in FIG. A duplicate description is omitted.

  As shown in FIG. 4, the fuel monitoring apparatus 10B according to the present embodiment is provided with a heater 21 for heating the mixed oil 11 in the mixed oil adjusting apparatus 13 of the fuel monitoring apparatus 10A according to the first embodiment shown in FIG. It is a thing.

  The mixed oil 11 passing through the mixed oil extraction passage 12 is heated in the mixed oil adjusting device 13 and then supplied to the liquid cell 17 to determine the mixing ratio of the mixed oil 11.

  By heating the mixed oil 11 that passes through the mixed oil extraction passage 12 in the mixed oil adjustment device 13, the fluidity of the mixed oil 11 in the mixed oil extraction passage 12 that has passed through the mixed oil adjustment device 13 can be improved. it can.

  The temperature of the mixed oil 11 is preferably maintained at 50 ° C. to 80 ° C., and more preferably heated to about 60 ° C. This is because the kinematic viscosity of C heavy oil must be, for example, about 37 cSt or less so that the mixed oil 11 accommodated in the liquid cell 17 of the fuel mixture ratio measuring device 14 can be easily replaced. This is because the kinematic viscosity of C heavy oil can be set to, for example, approximately 37 cSt by setting the temperature of the oil 11 to approximately 60 ° C.

  Therefore, by increasing the fluidity of the mixed oil 11 passing through the mixed oil extraction passage 12, the mixed oil 11 accommodated in the liquid cell 17 of the fuel mixture ratio measuring device 14 can be easily replaced.

The temperature by the density of the oil mixture 11 is changed, 1740 cm around ^-1, or to 1160cm absorbance around ^-1 changes, to previously obtain the correction coefficient in advance temperature, depending on the heating temperature of the mixed oil 11 Obtain the absorbance.

  Therefore, according to the fuel monitoring device 10B according to the present embodiment, the mixed oil adjusting device 13 is provided with the heater 21 for heating the mixed oil 11, so that the mixed oil 11 passing through the mixed oil extraction passage 12 is mixed with the mixed oil 11. Heating can be performed in the adjusting device 13, the fluidity of the mixed oil 11 passing through the mixed oil extraction passage 12 can be improved, and the mixed oil 11 accommodated in the liquid cell 17 can be easily replaced.

  In the fuel monitoring device 10B according to the present embodiment, the heater 21 is provided as a heating means in the mixed oil adjusting device 13, but the present invention is not limited to this, and the mixed oil 11 can be heated. Any other heating means may be used.

A fuel monitoring apparatus according to Embodiment 3 of the present invention will be described with reference to FIG.
FIG. 5 is a conceptual diagram schematically showing the configuration of the fuel monitoring apparatus according to the third embodiment of the present invention.
As shown in FIG. 5, the fuel monitoring device 10C according to the present embodiment has the same configuration as the fuel monitoring device 10A according to the first embodiment shown in FIG. A duplicate description is omitted.

  As shown in FIG. 5, the fuel monitoring apparatus 10C according to the present embodiment adds the organic solvent 22 to the mixed oil 11 to the mixed oil adjusting apparatus 13 of the fuel monitoring apparatus 10A according to the first embodiment shown in FIG. An organic solvent supply unit 23 is provided.

  After the organic solvent 22 is added from the organic solvent supply unit 23 to the mixed oil 11 passing through the mixed oil extraction passage 12 via the organic solvent supply line 25 by the organic solvent feeding pump 24, the mixed oil 11 is added to the liquid cell 17. And the mixing ratio of the mixed oil 11 is determined.

  By adding the organic solvent 22 to the mixed oil 11 that passes through the mixed oil extraction passage 12, the fluidity of the mixed oil 11 in the mixed oil extraction passage 12 that has passed through the mixed oil adjusting device 13 can be improved.

  Examples of the organic solvent 22 include carbon tetrachloride, carbon disulfide, hexane, benzene, and acetone.

  As addition amount of the organic solvent 22, it is preferable to add 50-90 vol%. This is because the kinematic viscosity of C heavy oil needs to be about 37 cSt or less, for example, so that the mixed oil 11 accommodated in the liquid cell 17 of the fuel mixture ratio measuring device 14 can be easily replaced. Because there is. By setting the addition amount of the organic solvent 22 to 50 to 90 vol%, the kinematic viscosity of C heavy oil can be set to, for example, about 37 cSt.

  Therefore, by adding the organic solvent 22 to the mixed oil 11 and improving the fluidity of the mixed oil 11, the mixed oil 11 accommodated in the liquid cell 17 of the fuel mixing ratio measuring device 14 can be easily replaced. Moreover, since the water | moisture content in the mixed oil 11 is diluted, the interference at the time of the measurement by a water | moisture content can be reduced.

The type of organic solvent 22 to be added, depending on the amount of dilution is added an organic solvent 22 and a density change in the mixed oil 11, 1740 cm near ^-1 or 1160cm absorption peak intensity at around ^-1 changes. For this reason, the correction coefficient is calculated | required for every kind of the organic solvent 22 added beforehand, and the diluted amount of the added organic solvent 22, and according to every kind of added organic solvent 22 and the diluted quantity of the added organic solvent 22 The absorption peak intensity is obtained.

  Therefore, according to the fuel monitoring device 10C according to the present embodiment, the mixed oil adjusting device 13 is provided with the organic solvent supply unit 23 for adding the organic solvent 22 to the mixed oil 11 passing through the mixed oil extraction passage 12. In addition, the fluidity of the mixed oil 11 in the mixed oil extraction passage 12 can be increased, and the mixed oil 11 accommodated in the liquid cell 17 can be easily replaced, and the moisture in the mixed oil 11 is diluted and measured by moisture. Time disturbance can be reduced.

A fuel monitoring apparatus according to Embodiment 4 of the present invention will be described with reference to FIG.
FIG. 6 is a conceptual diagram schematically showing the configuration of the fuel monitoring apparatus according to the fourth embodiment of the present invention.
As shown in FIG. 6, the fuel monitoring apparatus 10D according to the present embodiment is the same as the configuration of the fuel monitoring apparatus 10A according to the first embodiment shown in FIG. A duplicate description is omitted.

  As shown in FIG. 6, the fuel monitoring device 10D according to the present embodiment uses an organic solvent supply unit 23 provided in the mixed oil adjusting device 13 of the fuel monitoring device 10C according to the third embodiment shown in FIG. This is provided in the mixed oil extraction passage 12 upstream of the adjusting device 13.

  When the mixed oil 11 is extracted to the mixed oil extraction passage 12 and the mixing rate is not measured, an organic solvent 22 is added to the mixed oil extraction passage 12 so that the mixed oil is obtained by using the fuel mixture ratio measuring device 14 for a long period of time. Contamination due to the organic matter, moisture, etc. of the extraction passage 12 and the liquid cell 17 can be removed.

Further, the supply amount of the organic solvent 22 supplied to the mixed oil extraction passage 12 may be adjusted by providing a flow rate control valve V ₁ in the organic solvent supply line 25. Further, a flow control valve V ₂ may be provided in the mixed oil extraction passage 12 to discharge the organic solvent 22 that has washed the mixed oil extraction passage 12 and the liquid cell 17.

  Further, in the fuel monitoring device 10D according to the present embodiment, the organic solvent supply unit 23 is provided in the mixed oil extraction passage 12 on the upstream side of the mixed oil adjusting device 13, but the present invention is limited to this. It is not a thing. For example, the organic solvent supply unit 23 may be provided in both the mixed oil adjusting device 13 and the mixed oil extraction passage 12 to supply the organic solvent 22. Thus, the organic solvent 22 supplied to the mixed oil adjusting device 13 is used to increase the fluidity of the mixed oil 11 in the mixed oil extracting passage 12 and the mixed oil extracting passage is supplied by the organic solvent 22 supplied to the mixed oil extracting passage 12. 12. Contaminants such as organic substances in the liquid cell 17 may be removed.

  Further, the organic solvent 22 supplied to the mixed oil extraction passage 12 may also be used to enhance the fluidity of the mixed oil 11 in the mixed oil extraction passage 12.

  Further, the organic solvent 22 supplied to the mixed oil adjusting device 13 may also be used to remove contaminants such as organic substances in the mixed oil extraction passage 12 and the liquid cell 17.

A fuel monitoring apparatus according to Embodiment 5 of the present invention will be described with reference to FIG.
FIG. 7 is a conceptual diagram schematically showing the configuration of the fuel monitoring apparatus according to the fifth embodiment of the present invention.
As shown in FIG. 7, the fuel monitoring apparatus 10E according to the present embodiment has the same configuration as the fuel monitoring apparatus 10A according to the first embodiment shown in FIG. A duplicate description is omitted.

  As shown in FIG. 7, the fuel monitoring device 10E according to the present embodiment includes a heater 21 that heats the mixed oil 11 to the mixed oil adjusting device 13 of the fuel monitoring device 10B according to the second embodiment shown in FIG. The mixed oil adjusting device 13 of the fuel monitoring device 10C according to the third embodiment shown in FIG. 5 includes the organic solvent supply unit 23 for adding the organic solvent 22 to the mixed oil 11.

  The mixed oil 11 passing through the mixed oil extraction passage 12 is heated by the heater 21 in the mixed oil adjusting device 13, the organic solvent 22 is added to the mixed oil 11, and then supplied to the liquid cell 17 to mix the mixed oil 11. Determine the ratio.

  The mixed oil 11 passing through the mixed oil extraction passage 12 is heated in the mixed oil adjusting device 13, and the organic solvent 22 is added to increase the fluidity of the mixed oil 11, and the mixed oil 11 accommodated in the liquid cell 17. Can be more easily performed.

  Moreover, since the water | moisture content in the mixed oil 11 is diluted by adding the organic solvent 22 to the mixed oil 11, the interference at the time of the measurement by a water | moisture content can be reduced, and it originates in the organic substance of a liquid cell 17, a water | moisture content, etc. Contamination can be removed.

The temperature of the oil mixture 11, the type of the organic solvent 22 to be added, depending on the amount of dilution is added an organic solvent 22 and a density change in the mixed oil 11, 1740 cm near ^-1 or 1160cm absorbance around ^-1 changes Therefore, the correction coefficient is obtained in advance for each temperature of the mixed oil 11, the type of the organic solvent 22 to be added, and the diluted amount of the added organic solvent 22, and the temperature of the mixed oil 11, the type of the added organic solvent 22, The absorbance corresponding to each diluted amount of the added organic solvent 22 is obtained.

  Therefore, according to the fuel monitoring device 10D according to the present embodiment, the mixed oil adjusting device 13 is provided with the heater 21 that heats the mixed oil 11 and the organic solvent supply unit 23 that adds the organic solvent 22 to the mixed oil 11. Therefore, the fluidity of the mixed oil 11 in the mixed oil extraction passage 12 can be improved and the mixed oil 11 accommodated in the liquid cell 17 can be replaced more easily. Further, by adding the organic solvent 22 to the mixed oil 11, it is possible to reduce interference during measurement due to moisture, and it is possible to remove contamination caused by organic substances, moisture, and the like in the liquid cell 17.

A fuel monitoring apparatus according to Embodiment 6 of the present invention will be described with reference to FIG.
Since the configuration of the fuel monitoring device according to the present embodiment is the same as the configuration of the fuel monitoring devices 10C and 10D according to Embodiments 3 and 4 shown in FIGS. 5 and 6, the fuel monitoring device according to Embodiment 5 of the present invention. FIG. 5 and FIG.
The fuel monitoring apparatus according to the present example obtained and used a calibration curve of the organic solvent 22 representing the relationship between the absorbance near the wavelength of the organic solvent 22 added to the mixed oil 11 in advance and the dilution rate of the organic solvent 22 used. The mixing ratio of the palm stearin oil and the C heavy oil is obtained from the dilution rate of the organic solvent 22 obtained by detecting the absorbance around the wavelength of the organic solvent 22.

  That is, the fuel monitoring apparatus according to the present embodiment generates a calibration curve for the organic solvent 22 that represents the relationship between the dilution rate of the organic solvent 22 added to the previously prepared mixed oil 11 and the absorbance near the wavelength obtained from the organic solvent 22. The organic solvent 22 is used to determine the dilution rate of the organic solvent 22 from the absorbance near the wavelength obtained from the organic solvent 22, and represents the relationship between the dilution rate of the organic solvent 22 prepared in advance and the absorbance of palm stearin oil diluted with the organic solvent 22. The absorbance of the palm stearin oil is obtained from the dilution rate of the organic solvent 22 using the calibration curve of 22, and the relationship between the mixing rate of the palm stearin oil and the absorbance of the palm stearin oil in the mixed oil 11 prepared in advance is represented. The mixing ratio of the palm stearin oil is determined from the absorbance of the palm stearin oil using a calibration curve of palm stearin oil.

FIG. 8 is a diagram showing an infrared absorption spectrum of carbon tetrachloride. As shown in FIG. 8, an absorption peak in the vicinity of 800 cm ⁻¹ of the infrared absorption spectrum of carbon tetrachloride is observed. Therefore, when carbon tetrachloride is used as the organic solvent 22, it is preferable to prepare a calibration curve of carbon tetrachloride representing the relationship between the absorbance of carbon tetrachloride near 800 cm ⁻¹ and the dilution rate of carbon tetrachloride.

Then, the absorbance of the mixed oil 11 near 800 cm ⁻¹ is measured and compared with a carbon tetrachloride calibration curve representing the relationship between the absorbance of carbon tetrachloride and the dilution ratio of carbon tetrachloride prepared in advance. You can see the dilution ratio. And the light absorbency of the said palm stearin oil is understood by comparing with the calibration curve of the palm stearin oil showing the relationship between the dilution rate of the carbon tetrachloride and the light absorbency of the said palm stearin oil prepared beforehand. And the mixing ratio of palm stearin oil can be calculated | required from the light absorbency of the said palm stearin oil based on the calibration curve obtained from the light absorbency according to the mixing rate of palm stearin oil as shown in FIG.

As the organic solvent 22, when carbon disulfide is used in addition to carbon tetrachloride, the infrared absorption spectrum is about 2200 cm ⁻¹ , and when benzene is used, the carbon absorption is about 1950 cm ⁻¹ . Each absorption peak of benzene is observed.

  Therefore, according to the fuel monitoring apparatus according to the present embodiment, the calibration curve of the organic solvent 22 representing the relationship between the absorbance near the wavelength of the organic solvent 22 previously added to the mixed oil 11 and the dilution rate of the used organic solvent 22 is obtained. By determining, the dilution rate of the organic solvent 22 obtained by detecting the absorbance in the vicinity of the predetermined wavelength of the used organic solvent 22 is determined, and from the dilution rate of the organic solvent 22, the palm stearin oil is obtained. Since the absorbance is determined, even when the amount of dilution of the organic solvent 22 varies, the mixing ratio of the palm stearin oil can be determined from the absorbance of the palm stearin oil.

  Further, the configuration of the fuel monitoring device according to the present embodiment is such that a heater 21 that heats the mixed oil 11 is added to the mixed oil adjusting device 13 of the fuel monitoring device 10B as in the fuel monitoring device 10B according to the second embodiment shown in FIG. You may make it provide.

A fuel monitoring apparatus according to Embodiment 7 of the present invention will be described with reference to FIG.
FIG. 9 is a conceptual diagram schematically showing the configuration of the fuel monitoring apparatus according to the seventh embodiment of the present invention.
As shown in FIG. 9, the fuel monitoring device 10F according to the present embodiment has the same configuration as the fuel monitoring device 10A according to the first embodiment shown in FIG. A duplicate description is omitted.

  As shown in FIG. 9, the fuel monitoring device 10F according to the present embodiment is provided between the mixed oil adjusting device 13 and the fuel mixture ratio measuring device 14 of the fuel monitoring device 10A according to the first embodiment shown in FIG. Mixed oil flow rate adjusting valves 26-1 and 26-2 are provided as mixed oil enclosing means for enclosing the mixed oil 11 in the liquid cell 17 on the mixed oil extraction passage 12.

  After the mixed oil 11 is put into the liquid cell 17 of the fuel mixture ratio measuring device 14, the mixed oil flow rate adjusting valves 26-1 and 26-2 are closed, and the mixed oil 11 in the liquid cell 17 is stopped. The cell 17 is irradiated with infrared rays, and the mixing ratio of the mixed oil 11 in the liquid cell 17 is measured a plurality of times.

  Since the mixed oil 11 passing through the mixed oil extraction passage 12 can be measured a plurality of times using the same mixed oil 11 put in the liquid cell 17 by the mixed oil flow rate adjusting valve 24, the number of integrations at the time of measurement is repeated. Thus, the analytical sensitivity can be improved and the accuracy of the absorbance obtained can be improved.

Next, boiler equipment using the fuel monitoring apparatus of the present invention will be described with reference to FIG.
FIG. 10: is a conceptual diagram which shows simply the structure of the boiler equipment which concerns on Example 8 by this invention.
Since the configuration of the fuel monitoring device is the same as that of the fuel monitoring device 10A according to the first embodiment of the present invention, the description thereof is omitted here.
Further, in this embodiment, palm stearin oil is used as the additive fuel, and C heavy oil is used as the heavy oil fuel.
As shown in FIG. 10, the boiler facility 30 according to this embodiment supplies a C heavy oil tank 31 that stores C heavy oil, a palm stearin oil tank 32 that stores palm stearin oil, and a C heavy oil to the boiler 33. In the line mixer 36, the C heavy oil feed line 34, the palm stearin oil feed line 35 for feeding palm stearin oil to the boiler 33, the line mixer 36 for mixing C heavy oil and palm stearin oil, and the line mixer 36 are mixed. A mixed oil feed line 37 that feeds the mixed oil 11 of C heavy oil and palm stearin oil from the line mixer 36 to the boiler 33, and a mixed oil extraction that extracts a part of the mixed oil 11 to the mixed oil feed line 37. A line 38 and a fuel monitoring device 39 that is provided in the mixed oil extraction line 38 and detects the mixing ratio of the mixed oil 11 are provided.
As the fuel monitoring device 39, for example, the fuel monitoring device 10A according to the first embodiment of the present invention is used.

The mixture ratio data obtained by the fuel monitoring device 39 is fed back to the flow control valves V ₁₁ and V ₁₂ provided in the C heavy oil feed line 34 and the palm stearin oil feed line 35, so that palm stearin oil and C heavy oil are fed. The flow rate is controlled.

Since the flow rates of palm stearin oil and C heavy oil can be adjusted by the flow rate control valves V ₁₁ and V ₁₂ based on the mixing ratio data obtained by the fuel monitoring device 39, the mixed oil 11 has a predetermined mixing ratio. Can be kept constant. Thereby, the continuous mixing ratio of the mixed oil 11 can be monitored, and stable combustion of the boiler 33 and the like can be maintained.

  Therefore, if the boiler equipment 30 according to the present embodiment is used, a part of the mixed oil 11 is extracted from the mixed oil supply line 37 to the mixed oil discharge line 38 and the fuel monitoring device 39 according to the present embodiment is installed. Since the mixing ratio of the mixed oil 11 can be continuously monitored and the flow rates of palm stearin oil and C heavy oil can be adjusted, the mixed oil 11 can be kept constant at a predetermined mixing ratio. It is possible to provide a stable and highly reliable boiler facility.

  In the present embodiment, the fuel monitoring apparatus 10A according to the first embodiment is used as the fuel monitoring apparatus 39. However, the present invention is not limited to this, and any one of the second to seventh embodiments. One fuel monitoring device may be used.

  As described above, the fuel monitoring device and the boiler equipment according to the present invention continuously monitor the mixing ratio of the mixed oil, and keep the mixed oil constant so that the predetermined mixing ratio is obtained. Since stable combustion can be maintained, it is suitable for use in a fuel monitoring device and boiler equipment using a mixed oil.

It is a conceptual diagram which shows simply the structure of the fuel monitoring apparatus which concerns on Example 1 by this invention. It is a figure showing the infrared absorption spectrum of palm stearin oil and C heavy oil. It is a figure which shows the relationship between the mixing rate of palm stearin oil, and the light absorbency when a wave number is 1740cm < ^-1 >. It is a conceptual diagram which shows simply the structure of the fuel monitoring apparatus which concerns on Example 2 by this invention. It is a conceptual diagram which shows simply the structure of the fuel monitoring apparatus which concerns on Example 3 by this invention. It is a conceptual diagram which shows simply the structure of the fuel monitoring apparatus which concerns on Example 4 by this invention. It is a conceptual diagram which shows simply the structure of the fuel monitoring apparatus which concerns on Example 5 by this invention. It is a figure which shows the infrared absorption spectrum of carbon tetrachloride. It is a conceptual diagram which shows simply the structure of the fuel monitoring apparatus which concerns on Example 7 by this invention. It is a conceptual diagram which shows simply the structure of the boiler equipment which concerns on Example 8 by this invention. It is a figure which shows the process of the conventional measurement. It is the schematic of a floating type hydrometer. It is a figure showing the specific gravity of palm stearin oil and C heavy oil.

Explanation of symbols

10A to 10F Fuel monitoring device 11 Mixed oil 12 Mixed oil extraction passage 13 Mixed oil adjustment device 14 Fuel mixture ratio measuring device 15 Mixed oil extraction pump (mixed oil supply means)
16 Fuel Piping 17 Liquid Cell 18 Detector 19 Data Processing Device 21 Heater 22 Organic Solvent 23 Organic Solvent Supply Unit 24 Organic Solvent Feeding Pump 25 Organic Solvent Feeding Line 26-1, 26-2 Mixed Oil Flow Control Valve (Mixed Oil Seal) Input method)
30 Boiler equipment 31 C heavy oil tank 32 Palm stearin oil tank 33 Boiler 34 C heavy oil feed line 35 Palm stearin oil feed line 36 Line mixer 37 Mixed oil feed line 38 Mixed oil extraction line V ₁ , V ₂ , V ₁₁ , V ₁₂ flow control valve

Claims (23)

A mixed oil extraction passage for extracting a part of the mixed oil obtained by adding the added fuel to the heavy oil fuel;
A mixed oil adjusting device that adjusts the extracted mixed oil for measurement; and
A fuel mixture ratio measuring device interposed in the mixed oil extraction passage for measuring a mixing ratio of the added fuel and the heavy oil fuel in the mixed oil adjusted by the mixed oil adjusting device;
A fuel monitoring device comprising: a mixed oil supply means for continuously supplying the mixed oil to the fuel mixture ratio measuring device. In claim 1,
The fuel mixture ratio measuring device includes a liquid cell that contains the mixed oil, an infrared irradiation device that irradiates the liquid cell with infrared rays, and a detector that detects an infrared wavelength absorbed by the mixed oil. A fuel monitoring device. In claim 1 or 2,
A fuel monitoring apparatus, wherein a mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. In claim 2 or 3,
The additive fuel is one of palm stearin oil, tempura oil, waste oil, alcohol,
The fuel monitoring apparatus according to claim 1, wherein the heavy oil-based fuel is any one of C heavy oil, crude oil, and heavy oil. In claim 4,
When the additive fuel is palm stearin oil and the heavy oil fuel is C heavy oil,
Advance the added fuel and the mixing ratio of the heavy oil based fuel and around 1740 cm ^-1 of the mixed oil at that time, or obtains a calibration curve showing the relationship between the absorbance of 1160cm around ^-1,
A fuel monitoring device, characterized in that a mixing ratio between the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. In claim 4,
When the additive fuel is tempura oil,
In advance, a calibration curve representing the relationship between the mixing ratio of the added fuel and the heavy oil-based fuel and the absorbance at around 1700 cm ^{−1 of the} mixed oil at that time is obtained.
A fuel monitoring apparatus, characterized in that a mixing ratio between the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. In claim 4,
When the additive fuel is alcohol,
In advance, a calibration curve representing the relationship between the mixing ratio of the added fuel and the heavy oil-based fuel and the absorbance at around 1600 cm ^{−1 of the} mixed oil at that time is obtained.
A fuel monitoring device, characterized in that a mixing ratio between the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. In any one of Claims 1 thru | or 7,
The fuel monitoring device, wherein the mixed oil adjusting device has a heating means for heating the mixed oil. In any one of Claims 1 thru | or 8,
A fuel monitoring device comprising organic solvent supply means for adding an organic solvent to one or both of the mixed oil extraction passages inside and / or upstream of the mixed oil adjusting device. In claim 9,
Absorbance near the wavelength obtained from the organic solvent using a calibration curve of the organic solvent representing the relationship between the dilution ratio of the organic solvent added to the mixed oil prepared in advance and the absorbance near the wavelength obtained from the organic solvent The dilution ratio of the organic solvent is determined from
Obtain the absorbance of the added fuel from the dilution rate of the organic solvent using a calibration curve of the organic solvent representing the relationship between the dilution rate of the organic solvent prepared in advance and the absorbance of the added fuel diluted with the organic solvent,
The mixing ratio of the added fuel is obtained from the absorbance of the added fuel using a calibration curve of the added fuel representing the relationship between the mixing ratio of the added fuel and the absorbance of the added fuel in the mixed oil prepared in advance. A fuel monitoring device. In claim 9 or 10,
The fuel monitoring apparatus, wherein the organic solvent is at least one of carbon tetrachloride, carbon disulfide, hexane, benzene, and acetone. In any one of Claims 9 thru | or 11,
A fuel monitoring apparatus comprising a mixed oil sealing means provided in the mixed oil extraction passage and configured to seal the mixed oil in the liquid cell. A heavy oil fuel tank for storing heavy oil fuel;
An added fuel tank for storing the added fuel;
A heavy oil fuel supply line for supplying the heavy oil fuel to the boiler;
An additive fuel supply line for supplying the additive fuel to the boiler;
A line mixer for mixing the heavy oil fuel and the added fuel;
A mixed oil feeding line for feeding a mixed oil of the heavy oil fuel and the added fuel mixed in the line mixer from the line mixer to the boiler;
A mixed oil extraction line for extracting a part of the mixed oil to the mixed oil supply line;
A boiler facility comprising the fuel monitoring device according to any one of claims 1 to 12, which is provided in the mixed oil extraction line. A portion of the mixed oil obtained by adding the added fuel to the heavy oil fuel is extracted, the extracted mixed oil is continuously supplied to the liquid cell, the infrared rays are irradiated to the liquid cell, and the red oil absorbed by the mixed oil is absorbed. Detect outside wavelengths,
A method for determining a mixing ratio of fuel oil, wherein a mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the mixed oil obtained by detecting the extracted mixed oil. In claim 14,
The additive fuel is one of palm stearin oil, tempura oil, waste oil, alcohol,
The fuel oil mixing ratio determination method, wherein the heavy oil-based fuel is any one of C heavy oil, crude oil, and heavy oil. In claim 15,
When the additive fuel is palm stearin oil and the heavy oil fuel is C heavy oil,
Previously obtained with the addition of fuel had been the mixing ratio of the heavy oil based fuel 1740cm around ^-1 of the mixed oil or the mixed oil was detected using a calibration curve showing the relationship between the absorbance of 1160cm around ^-1 A method for determining a mixing ratio of fuel oil, wherein a mixing ratio of the added fuel and the heavy oil fuel is obtained from the absorbance of the fuel oil. In claim 15,
When the additive fuel is tempura oil,
From the absorbance of the mixed oil detected using a calibration curve representing the relationship between the mixing ratio of the added fuel and the heavy oil fuel obtained in advance and the absorbance of the mixed oil near 1700 cm ^−1. And determining the mixing ratio between the fuel oil and the heavy oil fuel. In claim 15,
When the additive fuel is alcohol,
From the absorbance of the mixed oil detected using a calibration curve representing the relationship between the mixing ratio of the added fuel and the heavy oil fuel obtained in advance and the absorbance around 1600 cm ⁻¹ of the mixed oil, the added fuel is obtained. And determining the mixing ratio between the fuel oil and the heavy oil fuel. In any one of Claims 14 thru | or 18,
A method for determining a mixing ratio of fuel oil, wherein the extracted mixed oil is heated and then measured. In any one of claims 14 to 19,
A method for determining a mixing ratio of fuel oil, wherein an organic solvent is added to the extracted mixed oil and then measured. In any one of claims 14 to 20,
Absorbance near the wavelength obtained from the organic solvent using a calibration curve of the organic solvent representing the relationship between the dilution ratio of the organic solvent added to the mixed oil prepared in advance and the absorbance near the wavelength obtained from the organic solvent The dilution ratio of the organic solvent is determined from
Obtain the absorbance of the added fuel from the dilution rate of the organic solvent using a calibration curve of the organic solvent representing the relationship between the dilution rate of the organic solvent prepared in advance and the absorbance of the added fuel diluted with the organic solvent,
The mixing ratio of the added fuel is obtained from the absorbance of the added fuel using a calibration curve of the added fuel representing the relationship between the mixing ratio of the added fuel and the absorbance of the added fuel in the mixed oil prepared in advance. A fuel oil mixing ratio determination method. In any one of Claims 14 to 21,
A method for determining a fuel oil mixing ratio, wherein the organic solvent is at least one of carbon tetrachloride, carbon disulfide, hexane, benzene, and acetone. In any one of claims 20 to 22,
A method for determining a mixing ratio of fuel oil, wherein the mixed oil is measured after sealing the liquid oil in the liquid cell.

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