JP2011112362A - Method and device for analyzing quality of liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for analyzing the quality of a liquid, determining whether fuel oil is suitable for use in the engine of a ship within the ship until the whole amount of the fuel oil is loaded in the ship, for example, in the case where the liquid to be analyzed is the fuel oil of the ship. <P>SOLUTION: The device for analyzing the quality of the liquid is equipped with: a density measuring part 18 for measuring the density of the fuel oil to be analyzed; a heating part 21 capable of heating the liquid to be analyzed to 50°C; a viscosity measuring part 19 for measuring the viscosity of the fuel oil heated to 50°C in the heating part 21; and an operational display part 17 for calculating a CCAI value using the density of the liquid at 15°C and the dynamic viscosity of the liquid at 50°C further obtained by the basis of the density measured value of the liquid obtained by the density measuring part 18 and the viscosity measured value of the liquid obtained in the viscosity measuring part 19, and outputting the density at 15°C, the dynamic viscosity at 50°C, and the CCAI value. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid quality analysis method and a liquid quality analysis apparatus capable of analyzing the quality of liquids such as fuel oils for ships, for example, and lubricating oils, hydraulic oils, electrolytic solutions, mixed solutions, and slurries. .

  Currently, fuel oil for ships is loaded at the port of call where ships call. Whether or not the fuel oil to be loaded has an appropriate quality is determined by an analysis engine on the ground. When analyzing the fuel oil loaded on the ship, the fuel oil is collected when loaded on the ship, and thereby the identity of the collected fuel oil and the fuel oil loaded on the ship is determined. It can be secured.

  However, if the fuel oil to be analyzed is collected when the fuel oil is loaded on the ship, the analysis engine analyzes the fuel oil from the time when the collected fuel oil is sent to the analysis engine on the ground. Only a relatively short time until the ship departs may be given as a time until it is determined whether or not the fuel oil has an appropriate quality and the determination result is notified to the crew of the ship.

  Therefore, if the quality of the collected fuel oil cannot be determined before leaving the port, and it is determined that the oil is bad (improper quality fuel oil) after leaving the port, it will be returned to the port of call and the quality fuel oil ( It will take a lot of labor and cost.

  Therefore, a fuel oil analysis method that can easily analyze fuel oil on a ship is disclosed in a patent publication (for example, see Patent Document 1). In this fuel oil analysis method, first, fuel oil is collected when the fuel oil is loaded on a ship, and the collected fuel oil is mixed with a diluent on the ship. And it is made to dry after filtration, and an operator counts the fine particle on a filter paper using a microscope.

  However, in the fuel oil analysis method in which the operator counts the fine particles on the filter paper using a microscope in this way, there is a counting error of the fine particles by the operator, and thus it can be said that the reliability of the determination result is low. Furthermore, it is not possible to determine whether or not the fuel oil can be used only by this fuel oil analysis method.

  Another example of a conventional fuel oil analysis method is a suspension detection apparatus in oil (see, for example, Patent Document 2). The procedure for using this suspension detection apparatus in oil is to first collect fuel oil when loading the fuel oil on the ship, filter the collected fuel oil on the ship, and use it for the filtration. A filter is set between the counter electrodes. Then, arc discharge is generated between the counter electrodes to melt and emit the fine particles in the filter. Next, the FCC catalyst particles are detected by a detector based on the emission intensity based on Al and Si.

  However, this suspension detection apparatus in oil is bulky, difficult to move by hand, and the apparatus is expensive. Furthermore, it is not possible to determine whether or not the fuel oil can be used only with the suspension detection device in oil.

Japanese Patent Laid-Open No. 2005-30815 JP 11-153541 A

  In recent years, petroleum refining methods have been changed, and the components of fuel oil used in marine engines have changed. This makes it impossible to determine whether the quality of the fuel oil is high quality fuel oil (appropriate quality fuel oil) or poor fuel oil (inappropriate quality fuel oil) before the ship departs. Therefore, in the case of poor fuel oil, troubles such as engine damage occur and become a big problem.

  The present invention has been made to solve the above-described problems. For example, when the liquid to be analyzed is a ship fuel oil, is the fuel oil suitable for use in a ship engine? It is an object of the present invention to provide a liquid quality analysis method and a liquid quality analysis apparatus that can determine whether or not the total amount of fuel oil is loaded in a ship before the ship is loaded.

  The liquid quality analysis method according to the first invention includes a density at 15 ° C. of a liquid to be analyzed, a density for obtaining a kinematic viscosity at 50 ° C., a viscosity obtaining step, the obtained density at 15 ° C., and the above A CCAI value obtaining step for obtaining a CCAI value using a kinematic viscosity at 50 ° C., and an output step for outputting the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value, To do.

  According to the liquid quality analysis method according to the first aspect of the present invention, the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value can be obtained, and each of these values can be output by the output unit. Can be displayed. Therefore, the operator visually recognizes each value displayed on the display unit, for example, and whether each value is equal to or less than a predetermined threshold for each value. When it is determined that each value is equal to or less than the corresponding threshold value, it can be determined that the analyzed liquid is acceptable.

  The liquid quality analysis method according to the second invention is the liquid quality analysis method according to the first invention, wherein the liquid to be analyzed is heated and burned to obtain fine particles contained in the liquid as a residue, And a first weight measuring step of measuring a first weight of the fine particles obtained in the heating and combustion process.

  According to the liquid quality analysis method according to the second aspect of the present invention, the liquid to be analyzed is subjected to a heat combustion process to obtain fine particles contained in the liquid as a residue, and the first weight of the obtained fine particles is measured. it can.

  Thereby, for example, the respective ratios of the low molecular component and the high molecular component contained in the liquid to be analyzed can be analyzed. In other words, for example, by heating and burning fuel oil at a predetermined temperature, low molecular components corresponding to that temperature can be burned, and by measuring the weight of the residue (first weight) after burning, The proportion of the polymer component contained can be analyzed.

  Therefore, the operator determines whether or not the proportion of the first weight is equal to or less than a predetermined threshold with respect to the first weight, and determines that the proportion of the first weight is equal to or less than the threshold. If it is, it can be determined that the analyzed fuel oil is acceptable.

  The liquid quality analysis method according to the third aspect of the invention is the liquid quality analysis method of the first or second aspect of the invention, wherein the liquid mixture obtained by adding a solvent to the liquid to be analyzed is filtered and left. It comprises an insoluble fine particle obtaining step for obtaining fine particles as a residue by drying, and a second weight measuring step for measuring a second weight of the fine particles obtained in the insoluble fine particle obtaining step.

  According to the liquid quality analysis method according to the third aspect of the present invention, the liquid mixture obtained by adding a solvent to the liquid to be analyzed is filtered to obtain the residual fine particles, which are obtained as a residue. The second weight of the fine particles can be measured.

  Thereby, for example, the respective ratios of the low molecular component and the high molecular component contained in the liquid to be analyzed can be analyzed. That is, for example, when a predetermined solvent is added to the fuel oil, a polymer component having a large C / H ratio becomes insoluble fine particles among components combusted at around 600 ° C., and the insoluble fine particles are converted into residue weight (second weight). ) Can be measured. In this way, the proportion of the insoluble fine particles contained in the liquid can be analyzed.

  Therefore, the operator determines whether or not the ratio of the second weight is equal to or less than a predetermined threshold with respect to the second weight, and determines that the ratio of the second weight is equal to or less than the threshold. If it is, it can be determined that the analyzed fuel oil is acceptable.

  A liquid quality analysis method according to a fourth aspect of the invention is the liquid quality analysis method according to any one of the first to third aspects of the invention, wherein a sulfur weight ratio measurement step of measuring a weight ratio of sulfur contained in the analyzed liquid. Is provided.

  According to the liquid quality analysis method of the fourth aspect of the present invention, the weight ratio of sulfur contained in the analyzed liquid can be measured. This makes it possible to analyze the proportion of sulfur contained in the liquid to be analyzed.

  A liquid quality analyzer according to a fifth aspect of the present invention is a density measuring unit that measures the density of the liquid to be analyzed, a heating unit that can heat the liquid to be analyzed to 50 ° C., and the heating unit to 50 ° C. Based on the viscosity measurement unit that measures the viscosity of the liquid heated to, the density measurement value of the liquid obtained by the density measurement unit, and the viscosity measurement value of the liquid obtained by measurement by the viscosity measurement unit, It comprises an operation unit for calculating a density at 15 ° C. and a kinematic viscosity at 50 ° C., and an output unit for outputting the density at 15 ° C. and the kinematic viscosity at 50 ° C.

  According to the liquid quality analyzer of the fifth invention, the density measuring unit can measure the density of the analyzed liquid. The heating unit can heat the liquid to be analyzed to 50 ° C., and the viscosity of the liquid heated to 50 ° C. by the heating unit can be measured by the viscosity measuring unit. Then, the calculation unit calculates the density at 15 ° C. based on the measured liquid density measured by the density measuring unit and the measured viscosity of the liquid obtained by the viscosity measuring unit, and 50 The kinematic viscosity at ° C can be calculated. Further, the calculated density at 15 ° C. and kinematic viscosity at 50 ° C. can be output by the output unit, and these values can be displayed on the display unit, for example.

  Therefore, for example, the operator visually recognizes and recognizes each of these values displayed on the display unit, and whether or not each of these values is equal to or less than each threshold value determined in advance for each value. When it is determined that each value is equal to or less than the corresponding threshold value, it can be determined that the analyzed liquid is acceptable.

  A liquid quality analysis apparatus according to a sixth aspect of the present invention includes a density measuring unit that measures the density of the liquid to be analyzed, a heating unit that can heat the liquid to be analyzed to 50 ° C., and the heating unit to 50 ° C. Further based on a viscosity measurement unit for measuring the viscosity of the liquid heated to the liquid, a density measurement value of the liquid obtained by the density measurement unit, and a viscosity measurement value of the liquid obtained by measurement by the viscosity measurement unit A calculation unit that calculates the CCAI value using the obtained density at 15 ° C. and kinematic viscosity at 50 ° C., and an output unit that outputs the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value; It is characterized by providing.

  According to the liquid quality analyzer of the sixth invention, the density measuring unit, the heating unit, and the viscosity measuring unit operate in the same manner as the liquid quality analyzer of the fifth invention.

  And the calculating part is a density at 15 ° C. obtained further based on the measured density value of the liquid obtained by the density measuring part, and the measured viscosity value of the liquid obtained by the viscosity measuring part, and 50 ° C. The CCAI value can be calculated using the kinematic viscosity at. And an output part can output the density in 15 degreeC, kinematic viscosity in 50 degreeC, and CCAI value.

  Therefore, for example, the operator visually recognizes and recognizes each of these values displayed on the display unit, and whether or not each of these values is equal to or less than each threshold value determined in advance for each value. When it is determined that each value is equal to or less than the corresponding threshold value, it can be determined that the analyzed liquid is acceptable.

  For example, the calculation unit uses the density measurement value of the liquid obtained by the density measurement unit and the viscosity measurement value of the liquid obtained by measurement by the viscosity measurement unit, and the density at 15 ° C. and 50 ° C., and The viscosity at 50 ° C. is calculated, and the CCAI value can be calculated using these values.

  Further, for example, the operator uses the liquid density measurement value obtained by the density measurement unit and the viscosity measurement value of the liquid obtained by measurement by the viscosity measurement unit, from the conversion table, at 15 ° C. and 50 ° C. The density and the viscosity at 50 ° C. are recognized, and each of these values is input to the calculation unit, and the calculation unit can calculate the CCAI value using each of these values.

  According to a seventh aspect of the present invention, there is provided a liquid quality analyzer, wherein the liquid to be analyzed is heat-combusted to obtain fine particles contained in the liquid as a residue, and the liquid to be analyzed is accommodated inside. A main body case, a sample container disposed in the main body case for containing a liquid to be analyzed, a heating unit provided in the main body case for heating and burning the analyzed liquid, and a liquid An air supply pump for supplying air into the main body case, a temperature sensor for measuring the temperature in the main body case, and the heating unit based on the temperature measured by the temperature sensor. A temperature control unit that controls the temperature in the main body case to be within a predetermined temperature range, and a heat insulating material is provided in the main body case, and the sample container of the heat insulating material is provided in the sample container It is characterized in further comprising a metallic cover member covering the inner surface of the side to be.

  When analyzing a liquid using the liquid quality analyzer according to the seventh aspect of the invention, the liquid to be analyzed (for example, fuel oil) is placed in a sample container, and the sample container is placed in the main body case. And the state which operates an air supply pump and supplies air in a main body case is continued. Then, the heating unit is operated to heat and burn the liquid in the sample container. At this time, the temperature control unit can control the temperature in the main body case to be within a predetermined temperature range by controlling the heating unit based on the temperature measured by the temperature sensor. In this way, the liquid to be analyzed can be heated and burned to obtain fine particles contained in the liquid as a residue.

  Next, the operator measures the first weight of the obtained fine particles in the same manner as described in the operation of the liquid quality analysis method according to the second invention, and includes it in the liquid to be analyzed, for example. It is possible to analyze the ratio of each of the low molecular component and the high molecular component.

  Therefore, the operator determines whether or not the proportion of the first weight is equal to or less than a predetermined threshold with respect to the first weight, and determines that the proportion of the first weight is equal to or less than the threshold. When it is done, it can be determined that the analyzed liquid (fuel oil) is acceptable.

  And since the heat insulating material is provided in the main body case, temperature control in the main body case can be stably performed. Further, since the inner surface of the heat insulating material facing the sample container is covered with a metal covering, it is possible to prevent the heat insulating material from being deteriorated by the combustion gas.

  The liquid quality analyzer according to an eighth aspect of the present invention is the liquid quality analyzer according to the seventh aspect of the present invention, comprising: a first weight measuring unit capable of measuring the weight of the liquid in the sample container; and the temperature sensor. And a temperature-weight recording unit for recording the measured temperature in the main body case and the weight of the liquid measured by the first weight measuring unit.

  According to the liquid quality analysis apparatus of the eighth invention, the weight of the liquid in the sample container can be measured by the first weight measuring unit. The temperature and weight recording unit can record the temperature in the main body case measured by the temperature sensor and the weight of the liquid measured by the first weight measuring unit.

  Therefore, for example, the temperature and weight recording unit can record the process of increasing the heating combustion temperature and burning the liquid and reducing its weight. It is possible to recognize by looking at the record that the components are burned and burned out and that the polymer component remains as a residue without burning.

  According to a ninth aspect of the present invention, there is provided a liquid quality analyzer, which comprises filtering a mixed liquid obtained by adding a solvent to a liquid to be analyzed, drying the insoluble fine particles remaining, and removing the dried insoluble fine particles. In a fine particle analyzer that can be obtained, a filtration unit for filtering the liquid mixture, a vacuum pump that generates a suction force that causes the liquid mixture to pass through the filtration unit, and insoluble fine particles remaining in the filtration unit And a hot air generating unit for drying.

  When analyzing a liquid using the liquid quality analysis apparatus according to the ninth aspect of the invention, a mixed solution obtained by adding a solvent to the liquid to be analyzed is filtered by a filtration unit. When the mixed solution is filtered, the vacuum pump generates a suction force that works to allow the mixed solution to pass through the filtration unit, so that the mixed solution can be filtered in a short time. Then, the insoluble fine particles remaining after the filtration can be dried by the hot air generator. In this way, insoluble fine particles contained in the analyzed liquid can be obtained as a residue.

  Next, the operator measures the second weight of the obtained insoluble fine particles in the same manner as described in the operation of the liquid quality analysis method according to the third invention, for example, the liquid to be analyzed. Among the components combusting near 600 ° C. (for example, fuel oil), the ratio of the polymer component having a large C / H ratio can be analyzed.

  Therefore, the operator determines whether or not the ratio of the second weight is equal to or less than a predetermined threshold with respect to the second weight, and determines that the ratio of the second weight is equal to or less than the threshold. If it is, it can be determined that the analyzed liquid (for example, fuel oil) is acceptable.

  A liquid quality analyzer according to a tenth aspect of the present invention is a liquid quality analyzer for measuring a weight ratio of sulfur contained in a liquid to be analyzed. A sample container having a bottom part with dimensions of 10 to 50 mm in the horizontal direction and the height direction, and an X-ray irradiated to the liquid in the sample container from the outside of the sample container through the bottom part of the container A 50 watt X-ray tube and a measurement position capable of accommodating the sample container and measuring the weight ratio of sulfur contained in the liquid in the sample container with the X-ray tube; and the sample A sample container storage provided movably to a non-measurement position where the container can be stored and taken out, and an X-ray dose corresponding to the weight ratio of sulfur contained in the liquid in the sample container Proportional counter And a temperature / pressure correction unit that corrects an error based on the measurement temperature and the measurement pressure and outputs a corrected sulfur weight ratio with respect to the sulfur weight ratio output from the proportional counter. .

  When analyzing the weight ratio of sulfur contained in the liquid using the liquid quality analyzer according to the tenth aspect of the invention, the liquid to be analyzed (for example, fuel oil) is placed in the sample container. The liquid in the sample container is irradiated with X-rays emitted from the X-ray tube from the outside of the sample container through the bottom. Next, the proportional counter can detect the X-ray dose corresponding to the weight ratio of sulfur to measure the weight ratio of sulfur contained in the liquid in the sample container. And with respect to the sulfur weight ratio which this proportional counter outputs, the temperature pressure correction part can correct | amend the error based on measurement temperature and measurement pressure, and can output the corrected sulfur weight ratio.

  In this way, the weight percentage of sulfur contained in the analyzed liquid can be measured. Thus, the operator can analyze the weight ratio of sulfur contained in the liquid to be analyzed.

  Therefore, when the operator determines whether the sulfur weight ratio is equal to or less than a predetermined threshold value and determines that the sulfur weight ratio is equal to or less than a predetermined threshold value, the analyzed liquid It can be determined that (for example, fuel oil) is acceptable.

  In addition, the vertical, horizontal and height dimensions of the sample container are set to 10 to 50 mm, and the X-ray tube is set to about 50 watts. To be able to do that.

  And the sample container storage which can store a sample container is provided, Furthermore, this sample container storage can measure the weight ratio of the sulfur contained in the liquid in a sample container with an X-ray tube. The position is provided so as to be movable between the position and the non-measurement position so that even if the liquid to be analyzed spills from the sample container, the liquid does not adversely affect the X-ray tube. It is.

  A liquid quality analyzer according to an eleventh aspect of the invention is the liquid quality analyzer of the fifth or sixth aspect, or the liquid quality analyzer of any of the seventh, ninth, and tenth aspects of the invention. And one or more liquid quality analyzers.

  The liquid quality analyzer according to the eleventh aspect of the invention is the liquid quality analyzer of the fifth or sixth aspect of the invention, and one of the liquid quality analyzers of any of the seventh, ninth, and tenth aspects of the invention. Further, it is possible to analyze a liquid such as fuel oil using two or more liquid quality analyzers. Thereby, since the quality of the liquid can be analyzed with high accuracy, the operator can make a highly reliable determination as to the suitability of the liquid.

  In the liquid quality analysis method and the liquid quality analysis apparatus according to the present invention, in the configuration capable of outputting the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value, the liquid to be analyzed is For example, in the case of a fuel oil, the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value can be recognized as typical basic physical properties of the fuel oil.

  Therefore, when it is determined that the density, kinematic viscosity, and CCAI value are equal to or less than the corresponding threshold values, the worker can easily determine that the analyzed fuel oil is acceptable. it can.

  Thereby, for example, whether or not the fuel oil is suitable for use in the engine of the ship can be determined in the ship before the entire amount of the fuel oil is loaded on the ship. Therefore, it is possible to prevent the occurrence of troubles such as engine damage that occurs when the fuel oil loaded on the ship is poor fuel oil.

  Then, in the liquid quality analyzer, when the density at 15 ° C. and the kinematic viscosity at 50 ° C. can be output, the liquid is, for example, lubricating oil other than fuel oil, hydraulic oil, electrolytic solution, mixed solution, and The quality of the liquid such as slurry can be analyzed, and the operator can easily determine the quality of the analyzed liquid by recognizing the analysis result.

It is a general | schematic fragmentary sectional front view which shows the 1st quality analyzer of the liquid which concerns on 1st Embodiment of this invention. It is a general | schematic fragmentary sectional front view which shows the 2nd quality analyzer of the liquid which concerns on the 1st Embodiment. It is a figure for demonstrating the 2nd quality analysis apparatus of the liquid which concerns on the 1st Embodiment, and is a figure which shows the relationship between the temperature of fuel oil, and the emitted-heat amount. It is a figure for demonstrating the 2nd quality analysis apparatus of the liquid which concerns on the 1st Embodiment, and is a figure which shows the relationship between the temperature and weight of fuel oil. It is a general | schematic fragmentary sectional front view which shows the 2nd quality analyzer of the liquid which concerns on 2nd Embodiment of this invention. It is a general | schematic fragmentary sectional front view which shows the 3rd quality analyzer of the liquid which concerns on the 1st Embodiment. It is a schematic plan view which shows the 4th quality analyzer of the liquid which concerns on the said 1st Embodiment.

  A liquid quality analyzer according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 7 (excluding FIG. 5). The liquid quality analysis apparatus 11 according to the present invention can analyze the quality of liquids (including fluids) such as marine fuel oil and lubricating oil, hydraulic oil, electrolytic solution, mixed solution, and slurry. Is. In this embodiment, the liquid to be analyzed is fuel oil, and the fuel oil is analyzed to determine whether it is appropriate for use as a marine fuel oil (C heavy oil). explain.

  The liquid quality analysis apparatus 11 of this embodiment includes a liquid first quality analysis apparatus 12 shown in FIG. 1, a liquid second quality analysis apparatus 13 shown in FIG. 2, and a liquid third quality analysis shown in FIG. The apparatus 14 and the liquid 4th quality analyzer 15 shown in FIG. 7 are provided.

  The operator uses these four first to fourth quality analyzers 12 to 15 to determine whether or not the fuel oil (sample) to be analyzed is suitable for use in a ship engine. For example, it is possible to make a simple determination in a ship, for example, in a short time until the entire amount of fuel oil is loaded on the ship.

  The analysis time of the liquid shown in FIG. 1 by the first quality analyzer 12 is, for example, within 15 minutes, and the analysis time of the liquid by the second quality analyzer 13 shown in FIG. 2 is, for example, within 30 minutes. And the analysis time by the 3rd quality analyzer 14 of the liquid shown in FIG. 6 is less than 30 minutes, for example, and the analysis time by the 4th quality analyzer 15 of the liquid shown in FIG. 7 is less than 10 minutes, for example.

  However, since the analysis work using the first to fourth quality analyzers 12 to 15 can be performed in parallel, the total analysis work can be performed within 60 minutes, for example.

  Next, the measurement and analysis items by the four first to fourth quality analyzers 12 to 15 shown in FIGS. 1 to 7 and the technical significance of the measurement and analysis will be described.

  The liquid first quality analyzer 12 shown in FIG. 1 can be used for primary determination of fuel oil, and the measurement items are the density, kinematic viscosity, and CCAI value of the fuel oil to be analyzed. These density, kinematic viscosity, and CCAI value represent typical basic physical properties of fuel oil, and whether the operator is acceptable for use in fuel engines, that is, for marine engines. A rough determination of whether or not can be made.

  For example, when the density of the fuel oil at 15 ° C. is larger than a predetermined density threshold, the amount of the polymer component and the amount of the residual FCC catalyst is large, the fluidity is deteriorated, and the pump, the piping, etc. are easily clogged. And when the density of the fuel oil at 15 ° C. is small, the amount of low molecular components is large, which causes rapid combustion.

  And when kinematic viscosity in 50 degreeC is larger than a predetermined kinematic viscosity threshold, it becomes easy to clog a pump, piping, etc. The CCAI value is an index indicating combustibility, and the larger the value, the more difficult it is to burn. Therefore, when the operator determines that each value of density and kinematic viscosity obtained by measurement and calculation is equal to or less than each corresponding threshold value, the analyzed fuel oil is used for the marine engine. It can be determined that this is acceptable for use.

  The liquid second quality analysis apparatus 13 shown in FIG. 2 can be used for secondary determination of fuel oil, and the analysis item is fine particles obtained as a residue after heating and burning the fuel oil to be analyzed. The first weight. Using this first weight, the weight ratio of the polymer component (or the weight ratio of the low-molecular component) contained in the fuel oil can be recognized.

  In the case of a poor fuel oil having a low weight ratio of the low molecular component, the ignitability is poor and it is difficult to realize continuous combustion. That is, such poor fuel oil has a large weight ratio of the polymer component. Therefore, when this second quality analyzer 13 is used, the operator can determine the suitability of the fuel oil with high reliability.

  FIG. 3 shows that each of the high-quality fuel oil and the poor fuel oil is heated and burned by using the heating unit 16 such as an electric heater and the temperature is increased at a constant speed. It is a figure which shows the emitted-heat amount. The vicinity of 400 ° C. shown in FIG. 3 shows heat generation due to combustion of low molecular components, and the vicinity of 600 ° C. shows heat generation due to combustion of high molecular components.

  In the second quality analyzer 13 of this embodiment, since the fuel oil to be analyzed is heated and burned at, for example, 425 ± 25 ° C., the low molecular components are burned down by this combustion, and the high molecular components are burned. Without leaving a residue of fine particles. Using the residual weight (first weight) of the fine particles of the polymer component, the weight ratio of the polymer component (or the weight ratio of the low molecular component) contained in the fuel oil can be recognized.

  FIG. 4 shows that each of the high-quality fuel oil and the poor fuel oil is heated and burned using the heating unit 16 such as an electric heater and the temperature is increased at a constant speed. It is a figure which shows a weight. The weight loss to the inflection point near 400 ° C. shown in FIG. 4 indicates the weight loss due to the combustion of the low molecular component, and the weight loss from the inflection point near 400 ° C. to the inflection point near 600 ° C. is high. It shows weight loss due to combustion of molecular components.

  In the second quality analysis device 13 of this embodiment, as described above, the fuel oil to be analyzed is heated and burned at, for example, 425 ± 25 ° C., so the low molecular components are burned off by this combustion, The polymer component does not burn and becomes a residue of fine particles. Using the residual weight (first weight) of the fine particles of the polymer component, the weight ratio of the polymer component (or the weight ratio of the low molecular component) contained in the fuel oil can be recognized.

  The liquid third quality analyzer 14 shown in FIG. 6 can be used for tertiary determination of fuel oil, and the analysis item is obtained as a residue after adding a solvent to the fuel oil to be analyzed and filtering it. The second weight of the fine particles. This second weight can be used to recognize the weight ratio of the polymer component (or the weight ratio of the low-molecular component) contained in the fuel oil.

  The polymer component of the fine particles obtained as the residue is a polymer component having a large C / H (carbon / hydrogen) ratio among components combusted at around 600 ° C. When the weight ratio of the polymer component is large, it is difficult to realize continuous combustion. By combining this tertiary determination method with the secondary determination method, an operator can determine with high reliability whether or not the fuel oil is suitable for use in a marine engine.

  The liquid fourth quality analyzer 15 shown in FIG. 7 can be used for quaternary determination of fuel oil, and the analysis item is the weight ratio of sulfur contained in the fuel oil to be analyzed.

  If the weight ratio of sulfur contained in the fuel oil is large, the sulfur contained in the exhaust gas increases and the environment is deteriorated. Furthermore, the corrosion of the engine parts increases, which causes a problem to increase. However, if the weight ratio of sulfur contained in the fuel oil is too small, the slidability is deteriorated and the wear of the engine parts easily proceeds, causing trouble.

  Next, the first to fourth quality analyzers 12 to 15 will be described with reference to FIGS. These first to fourth quality analyzers 12 to 15 are accommodated in separate boxes and can be carried.

  The liquid first quality analyzer 12 shown in FIG. 1 is capable of displaying the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value of the fuel oil (sample) to be analyzed on the calculation display unit 17. It is. The operator determines whether or not these numerical values displayed on the calculation display unit 17 are below a predetermined threshold value corresponding to each of the numerical values, so that the fuel oil as the sample is obtained. Whether or not typical basic physical properties including combustibility are satisfied can be determined.

However, the CCAI value is calculated by the following (formula 1).
CCAI = D-140.7log (log (V + 0.85))-80.6 (1 formula)
D is a 15 ° C. density (Kg / m ³ ), and V is a 50 ° C. kinematic viscosity (cSt).

  The liquid first quality analyzer 12 shown in FIG. 1 includes a density measuring unit 18, a heating unit, a viscosity measuring unit 19, and a calculation display unit 17. The density measuring unit 18, the heating unit 16, the viscosity measuring unit 19, and the calculation display unit 17 are mounted on the same base 20 and integrally configured.

  The density measuring unit 18 is a float type or vibration type, and can measure the density of the fuel oil to be analyzed. The measured density value obtained by the measurement is output to the calculation display unit 17.

  The fuel oil to be analyzed is stored in the sample container 22. For example, when the sample container 22 is disposable, a paper container can be used and the inner surface can be lined with an aluminum sheet or a polyethylene sheet. When the sample container 22 is reusable, it can be made of plastic, metal, or glass.

  The heating unit 21 is an electric heater and is provided in the viscosity measuring unit 19 shown in FIG. The heating unit 21 can heat the fuel oil measured by the viscosity measuring unit 19 so as to reach a temperature set to 50 ° C. This heated fuel oil is stored in a heat-resistant metal sample container 23. However, the temperature at which the fuel oil is heated can be set within a predetermined temperature range by the operator operating the calculation display unit 17.

  The viscosity measuring unit 19 is of a vibration type and can measure the viscosity of the fuel oil heated to 50 ° C. (set value) by the heating unit 21. The measured viscosity value obtained by the measurement is output to the calculation display unit 17.

  The calculation display unit 17 includes a central processing unit (CPU) and can perform various calculations according to a program stored in the storage unit in advance. The calculation display unit 17 is, for example, a fuel oil density measurement value obtained at the shipboard temperature (temperature of the fuel oil) obtained by the density measurement unit 18 and a fuel at 50 ° C. obtained by measurement by the viscosity measurement unit 19. Based on the measured viscosity of the oil, the density at 15 ° C. and 50 ° C. and the kinematic viscosity at 50 ° C. can be calculated.

  Furthermore, the calculation display part 17 can calculate a CCAI value using the density at 15 ° C. and the kinematic viscosity at 50 ° C. obtained by these calculations.

  Here, the density at 15 ° C. is calculated by the calculation display unit 17 based on the density measurement value obtained by the density measurement unit 18 and the inboard temperature of the fuel oil when the density measurement value is measured. The

  The kinematic viscosity at 50 ° C. is calculated by the calculation display unit 17 by dividing the measured value of the fuel oil viscosity at 50 ° C. by the density of the fuel oil at 50 ° C. The density of the fuel oil at 50 ° C. is calculated from the measured value of the density of the fuel oil at the shipboard temperature. Further, the inboard temperature is measured by a thermometer provided in the first quality analyzer 12 and is input to the calculation display unit 17 automatically or by an operator.

  The calculation display unit 17 can output and display the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value obtained by the calculation display unit 17.

  Next, using the liquid first quality analyzer 12 and the liquid quality analysis method shown in FIG. 1 configured as described above, the density of the fuel oil at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value A procedure for acquiring the fuel oil and a method for determining whether or not the fuel oil is suitable for use in the marine engine will be described.

  In addition, the timing for measuring each measurement item of the density, kinematic viscosity, and CCAI value of this fuel oil, and the timing for determining whether or not this fuel oil is appropriate, Collect the fuel oil from the oil tank, or collect the fuel oil when starting to load the fuel oil into the ship, measure each of the above measurement items of the fuel oil in a short time, and before loading the fuel oil, At an initial stage or a part of the loading stage, the operator determines whether or not the fuel oil is appropriate.

  First, the operator takes out the first quality analysis device 12 from the box that has been stored in the ship and can be carried with one hand, for example. Next, the operator puts a part of the collected oil (fuel oil to be analyzed) into each of the two sample containers 22 and 23, and attaches one of the sample containers 22 to the density measuring unit 18 shown in FIG. . The density measuring unit 18 is used to measure the density of the fuel oil in the sample container 22 at the inboard temperature (temperature of the fuel oil). The density measurement value at the inboard temperature obtained by this measurement is output to the calculation display unit 17.

  Further, the operator attaches the other sample container 23 to the viscosity measuring unit 19 shown in FIG. Then, the viscosity of the fuel oil in the sample container 23 is measured using the viscosity measuring unit 19. However, the fuel oil in the sample container 23 is heated to 50 ° C. by the heating unit 21 provided in the viscosity measuring unit 19. Therefore, the viscosity of the fuel oil at 50 ° C. can be measured by the viscosity measuring unit 19, and the measured viscosity value at 50 ° C. obtained by this measurement is output to the calculation display unit 17.

  Next, the calculation display unit 17 is a software that has been input in advance (the temperature conversion of the density is performed by software based on JIS K 2249 Appendix Table II, Table 1B). Based on the measured viscosity, the density of the fuel oil at 15 ° C. and 50 ° C., the kinematic viscosity (viscosity / density) at 50 ° C., and the CCAI value are calculated. Then, the density of 15 ° C., the kinematic viscosity of 50 ° C., and the CCAI value of the fuel oil can be displayed on the calculation display unit 17.

  Accordingly, the operator visually recognizes and recognizes each of these values displayed on the calculation display unit 17, for example, and each of these measured values and calculated values is predetermined for each value. When it is determined whether each value is equal to or less than the corresponding threshold value, the analyzed fuel oil is allowed (good fuel oil) It can be determined that

  For example, when the fuel oil has a density of 15 ° C., a kinematic viscosity of 50 ° C., and a CCAI value as follows, it is determined that the analyzed fuel oil is acceptable (good fuel oil).

Density: 980 Kg / m ³ or less (15 ° C.), kinematic viscosity: 400 cSt or less (50 ° C.), CCAI value: 850 or less.

  Thereby, for example, whether or not the fuel oil is suitable for use in the engine of the ship can be determined in the ship before the entire amount of the fuel oil is loaded into the ship. Therefore, it is possible to prevent the occurrence of troubles such as engine damage that occurs when the fuel oil loaded on the ship is poor fuel oil.

  However, in the above embodiment, the calculation display unit 17 uses the liquid density measurement value obtained by the density measurement unit 18 and the liquid viscosity measurement value obtained by the viscosity measurement unit 19 to obtain 15 The density at 50 ° C. and the viscosity at 50 ° C. were calculated, and the CCAI value was calculated using each of these values. Instead, the operator measured the density of the liquid obtained by the density measuring unit 18. Recognizing the density at 15 ° C. and 50 ° C., and the viscosity at 50 ° C. from the predetermined conversion table using the measured density value and the measured viscosity value of the liquid obtained by the viscosity measuring unit 19, these Each value may be input to the calculation display unit 17, and the calculation display unit 17 may calculate the CCAI value using each value.

  The liquid second quality analyzer 13 shown in FIG. 2 can obtain a residue of the sample by subjecting the fuel oil (sample) to be analyzed to heat combustion treatment at 425 ± 25 ° C. By measuring the residual weight (first weight), the total weight (first weight) G1 of the polymer component and the residual FCC catalyst (main components are Al and Si) in the asphalt component of the fuel oil is obtained. Can be measured. The operator can determine that the fuel oil is suitable for use in the marine engine when the first weight G1 is less than a predetermined predetermined first weight GS1. . When the measured total weight G1 is larger than the predetermined set total weight GS1, when the fuel oil is used, the ignitability is poor and it is difficult to realize continuous combustion.

  2 includes a main body case 25, a heating unit 16, an air supply pump 26, a temperature sensor 27, a temperature display control unit 28, and a heat insulating material 29.

  The main body case 25 can be carried with one hand, for example, and can store the fuel oil to be analyzed inside, and the fuel oil to be analyzed is heated and burned in the main body case 25. It has become. A heat-resistant sample container 30 is disposed in the main body case 25, and fuel oil to be analyzed is accommodated in the sample container 30.

  The heating unit 16 is, for example, an electric heater, and is provided in the main body case 25. The fuel oil analyzed by the heating unit 16 can be heated and burned.

  The air supply pump 26 is for supplying air for burning fuel oil into the main body case 25. In the air supply pump 26, an air supply pipe 31 is connected to the air discharge port 26 a, and a front end portion of the air supply pipe 31 is open to an inner space of the main body case 25. A combustion gas outlet 33 is formed in the main body case 25. A flow meter 32 for measuring the amount of air supplied into the main body case 25 is provided in the middle of the air supply pipe 31.

  As shown in FIG. 2, the temperature sensor 27 is provided in the main body case 25 and can measure the temperature in the main body case 25. The temperature sensor 27 outputs the temperature measurement value obtained by the measurement to the temperature display control unit 28.

  The temperature display control unit 28 controls the heating unit 16 and the air supply pump 26 based on the temperature measurement value obtained by the temperature sensor 27 so that the temperature in the main body case 25 falls within a predetermined temperature range. It can be controlled. The temperature in the main body case 25 can be set by an operator by operating the temperature display control unit 28. The temperature in the main body case 25 is within a range of 425 ± 25 ° C., for example, with an accuracy of ± 2 ° C. It is set to reach within 15 minutes. Further, the temperature display control unit 28 can display the temperature measurement value obtained by the temperature sensor 27.

  As shown in FIG. 2, the heat insulating material 29 is provided so as to cover the entire inner surface of the main body case 25. The inner surface of the heat insulating material 29 facing the sample container 30 is covered with a metal covering 34.

  Since the main body case 25 is provided with the heat insulating material 29 as described above, temperature control in the main body case 25 can be stably performed. Further, since the inner surface of the heat insulating material 29 facing the sample container 30 is covered with the metal covering 34, the heat insulating material 29 can be prevented from being deteriorated by the combustion gas.

  Then, as shown in FIG. 2, in order to rapidly cool the residue after the fuel oil is heated and burned, air is supplied to the gap (cooling air passage 60) between the metal cover 34 and the heat insulating material 29. A cooling fan 58 for supply is provided on the back of the main body case 25. Further, a cooling air exhaust port 59 for discharging cooling air is provided in the front upper part of the main body case 25.

  As shown in FIG. 2, the opening 25 a of the main body case 25 is closed by a door 35 so as to be freely opened and closed. The door 35 is attached to a closed position by a clamp 36.

  Next, using the second liquid quality analysis device 13 and the liquid quality analysis method shown in FIG. 2 configured as described above, the fuel oil to be analyzed is heated and burned to be included in the fuel oil. A method of obtaining fine particles as a residue and measuring the weight of the residue (first weight) and further determining whether or not the fuel oil is suitable for use in a marine engine will be described. The analysis of fuel oil using the second quality analyzer 13 can be performed in parallel with the analysis of fuel oil using the first quality analyzer 12.

  First, the operator puts a part of the collected oil (fuel oil to be analyzed) into the sample container 30 and arranges the sample container 30 in the main body case 25 shown in FIG. Then, the air supply pump 26 is operated to continue supplying air into the main body case 25. Then, the heating unit 16 is operated to heat and burn the fuel oil in the sample container 30. At this time, the temperature display control unit 28 controls the heating unit 16 based on the temperature measured by the temperature sensor 27 so that the temperature in the main body case 25 is within a predetermined temperature range (for example, 425 ± 25 ° C., ± 2 ° C. Can be controlled so as to be within the accuracy. In this way, the fuel oil to be analyzed can be heated and burned to obtain fine particles contained in the fuel oil as a residue.

  Next, the operator measures the weight (first weight) of the acquired fine particles with a separately provided weight weighing machine (not shown). This first weight is the weight of the polymer component in the asphalt component of the fuel oil and the total weight of the residual FCC catalyst. Thereby, the respective weight ratios of the high molecular component and the low molecular component contained in the fuel oil to be analyzed can be analyzed.

  Therefore, the operator determines whether or not the proportion of the first weight is equal to or less than a predetermined threshold (for example, 60%) with respect to the first weight, and the proportion of the first weight is the threshold. When it is determined that it is equal to or less than (for example, 60%), it can be determined that the analyzed fuel oil is acceptable (high quality fuel oil).

  In addition, in order to heat and burn the fuel oil to be analyzed and take out the burned residue from the main body case 25 in a short time, the temperature in the main body case 25 is rapidly increased to a predetermined temperature and the predetermined temperature is increased. The temperature is maintained for a predetermined time, and then rapidly decreases. Here, the temperature in the main body case 25 rapidly decreases because the power source of the heating unit 16 is OFF and the air supply pump 26 and the cooling fan 58 are operating.

  For example, the heating time to a predetermined temperature (about 425 ° C.) is about 5 to 15 minutes, and the holding time at the predetermined temperature is set to about 0.5 to 5 minutes. By making this holding time within this time range, the influence of evaporation of the volatile content of the fuel oil can be reduced, which is preferable. Further, when the predetermined temperature is less than 400 ° C., combustion and decomposition of low molecular components become insufficient, and when it is 450 ° C. or higher, decomposition of a high molecular component that inhibits combustion proceeds and is acquired as a residue. 425 ± 25 ° C. is preferable. The atmosphere at the time of heating is preferably air, and it is preferable to circulate at a flow rate of 100 to 500 ml / min in order to improve combustion and discharge combustion gas.

  The liquid third quality analysis apparatus 14 shown in FIG. 6 is stored in a box that can be carried with one hand, for example, and a liquid mixture obtained by adding a solvent to the fuel oil to be analyzed is filtered to leave the insoluble By drying the fine particles, the dried insoluble fine particles can be obtained.

  By measuring the weight of the insoluble fine particles, the total weight (second weight) G2 of the polymer component and the component having a large C / H ratio and the residual FCC catalyst can be measured. . The operator can determine that the fuel oil is suitable for use in the marine engine when the second weight G2 is less than a predetermined second weight GS2 set in advance. . When the measured total weight G2 is larger than the predetermined set total weight GS2, when the fuel oil is used, the ignitability is poor and it is difficult to realize continuous combustion.

  The liquid third quality analyzer 14 shown in FIG. 6 includes a filtering unit 38, a vacuum pump 39, and a hot air generating unit 40.

  The filtration part 38 is for filtering the liquid mixture obtained by adding a solvent to the fuel oil to be analyzed. The filter part 38 has a funnel-shaped part 38a, and a filter medium 38b is arranged substantially horizontally in the funnel-shaped part 38a.

  The vacuum pump 39 is for generating a suction force that works to allow the mixed liquid to pass through the filtration unit 38. The suction port 39a of the vacuum pump 39 is attached to the side wall of the filtrate collection container 41, and is attached so that the air in the filtrate collection container 41 can be discharged to reduce the pressure. And the lower end pipe part 42 of the funnel-shaped part 38a is inserted in the upper opening part of this filtrate collection container 41. FIG. The gap between the upper opening of the filtrate collection container 41 and the lower end pipe part 42 is sealed with a rubber plug 43.

  The hot air generator 40 is for drying insoluble fine particles remaining on the filter medium 38b of the filter 38. The hot air generating unit 40 is arranged with the air blowing port 40a facing the upper surface of the filter medium 38b of the filtering unit 38, and the hot air generated by the hot air generating unit 40 is blown onto the upper surface of the filter medium 38b to cover the upper surface of the filter medium 38b. It is provided so that it can be dried.

  As shown in FIG. 6, the third quality analyzer 14 includes a temperature display unit 44 that displays the temperature of hot air generated by the hot air generation unit 40, and a pressure display unit that displays the pressure in the filtrate collection container 41. 45, and a control unit (not shown) and an operation unit (not shown) for controlling the hot air generating unit 40, the vacuum pump 39, and the like are provided.

  Next, using the liquid third quality analyzer 14 and the liquid quality analysis method shown in FIG. 6 configured as described above, the weight of the insoluble fine particles contained in the fuel oil to be analyzed (second weight). ) And the method by which the operator determines whether the fuel oil is suitable for use in a marine engine. The analysis of the fuel oil using the third quality analyzer 14 can be performed in parallel with the analysis of the fuel oil using the first and second quality analyzers 12 and 13.

  First, the operator puts a part of the collected oil (the fuel oil to be analyzed) into a sample container (not shown), and further adds a solvent to the fuel oil in the sample container to create a mixture. To do. Next, the mixed solution is filtered by the filtering unit 38. When the mixed liquid is filtered, the vacuum pump 39 generates a suction force that works to permeate the mixed liquid through the filtration unit 38, so that the mixed liquid can be filtered in a short time. Thereafter, the insoluble fine particles remaining after the filtration are dried by the hot air generator 40. In this way, insoluble fine particles contained in the fuel oil to be analyzed can be obtained as a residue.

  Next, the operator measures the weight (second weight) of the obtained insoluble fine particles with a separately provided weight weighing machine (not shown). Suitable for use in this marine engine is a polymer having a large C / H ratio among components combusted at around 600 ° C. contained in fuel oil as shown in FIGS. The weight of the component. Thereby, the weight ratio of the polymer component having a large C / H ratio contained in the fuel oil to be analyzed can be analyzed.

  Therefore, the operator determines whether or not the ratio of the second weight is equal to or less than a predetermined threshold value (for example, 5.0%) that is determined in advance with respect to the second weight. When it is determined that the ratio of fuel is less than or equal to a threshold value (for example, 5.0%), it is determined that the analyzed fuel oil is suitable for use in marine engines (high-quality fuel oil). Can do.

  The solvent used in this embodiment is, for example, a single solvent of terpene hydrocarbon such as toluene, tetralin, limonene, or a mixed solvent prepared by mixing two or more of these solvents.

  And when using a mixed solvent, when the addition amount of terpene hydrocarbons, such as tetralin (trademark) or limonene, is 10-30 weight part with respect to 100 weight part of toluene, the component which causes the combustion failure of fuel oil ( Asphalt component) is preferable because it has a good correlation with the amount of residue (insoluble fine particle amount). In addition, 100 to 300 parts by weight of the solvent is suitable for dissolving components that do not cause poor combustion of the fuel oil with respect to 50 parts by weight of the fuel oil. Therefore, it is suitable for obtaining insoluble fine particles.

  By the way, the temperature of the hot air generated by the hot air generator 40 is appropriately about 105 ° C. If the temperature is higher than this temperature, the polymer component having a large C / H ratio volatilizes. Cause.

  The liquid fourth quality analyzer 15 shown in the plan view of FIG. 7 is capable of measuring the weight ratio of sulfur contained in the fuel oil to be analyzed.

  An operator determines that the fuel oil is suitable for use in a marine engine when the weight percentage of sulfur obtained by this measurement is less than a predetermined threshold value determined in advance. be able to. And when the weight ratio of this sulfur is larger than a predetermined threshold, when that fuel oil is used, the amount of sulfur will be contained in the exhaust gas, which will worsen the environment and cause corrosion of engine parts. Speed up progress.

  The liquid fourth quality analyzer 15 shown in the plan view of FIG. 7 includes a sample container 47, an X-ray tube (not shown), a proportional counter (not shown), and a temperature / pressure correction unit (not shown). , And a sample container storage 51.

  The sample container 47 is for containing the fuel oil to be analyzed. For example, the sample container 47 is a cylindrical container having a bottom, and has an inner diameter of 10 to 50 mm and a height of 10 to 50 mm.

  When this sample container is made disposable, it is assumed that a paper container is used and the entire inner surface of the paper container is covered with the covering sheet 48. The purpose of using the covering sheet 48 is to prevent the fuel oil contained in the sample container 47 from penetrating the paper sample container 47 and leaking.

  As this covering sheet 48, for example, an aluminum sheet or a polyethylene sheet can be used. As the covering sheet 48 covering the upper surface of the bottom of the paper container, for example, a transparent polyethylene sheet having a thickness of 5 to 20 μm formed transparently is used. It is preferable to use it. The reason why the thickness of the transparent polyethylene sheet is 5 to 20 μm can be made difficult to break by setting the thickness to 5 μm or more. And while setting it as 20 micrometers or less and making it transparent, transmission of X-rays can be made favorable.

  When the sample container is reusable, it can be made of plastic, metal, or glass.

  The X-ray tube is capable of irradiating the fuel oil in the sample container with X-rays from the lower side of the sample container 47 through the bottom and the covering sheet 48 covering the upper surface of the bottom. It is a tube.

  The proportional counter can measure the X-ray dose corresponding to the weight ratio of sulfur contained in the fuel oil in the sample container 47.

  The temperature / pressure correction unit can output a corrected sulfur weight ratio by correcting an error based on the measurement temperature and the measurement pressure with respect to the weight ratio of sulfur output from the proportional counter.

  Further, as shown in FIG. 7, the fourth quality analyzer 15 includes a sulfur weight ratio display section 49 for displaying the corrected sulfur weight ratio output from the temperature / pressure correction section, and the fourth quality analyzer 15 is operated. A sample container storage 51 for mounting the operation unit 50 and the sample container 47 is provided.

  Then, as shown in FIG. 7, the sample container storage 51 has a measurement position where the weight ratio of sulfur contained in the liquid in the sample container 47 can be measured by an X-ray tube (in the solid line shown in FIG. 7). And a non-measurement position (a position indicated by a two-dot chain line shown in FIG. 7). When the sample container storage 51 is in the non-measurement position, the sample container 47 can be stored in or taken out from the sample container storage 51. In addition, the sample container 47 is stored in the sample container storage 51 and the weight ratio of sulfur is measured, so that even when the fuel oil to be analyzed spills from the sample container 47, the fuel oil flows into the X-ray tube. This is to prevent adverse effects such as contamination.

  Next, by using the liquid fourth quality analyzer 15 and the liquid quality analysis method shown in FIG. 7 configured as described above, the weight ratio of sulfur contained in the fuel oil to be analyzed is measured. A method for determining whether or not the fuel oil is suitable for use in a marine engine will be described. The analysis of the fuel oil using the fourth quality analyzer 15 can be performed in parallel with the analysis of the fuel oil using the first to third quality analyzers 12-14.

  First, the worker puts a part of the collected oil (fuel oil to be analyzed) into the sample container 47. Then, the operator attaches the sample container 47 to the sample container storage 51 shown by a two-dot chain line in FIG. 7 (the sample container storage 51 has moved to the non-measurement position (exposed position)). Then, the sample container storage 51 is moved to a measurement position (accommodation position) indicated by a solid line. After that, the operator operates the operation unit 50 to emit the X-ray tube from the lower side of the sample container 47 to the fuel oil in the sample container 47 via the bottom and the covering sheet 48. Irradiate the line. Next, the proportional counter can detect the X-ray dose (X-ray intensity) corresponding to the weight ratio of sulfur and measure the weight ratio of sulfur contained in the fuel oil in the sample container 47. And with respect to the sulfur weight ratio which this proportional counter outputs, the temperature pressure correction part can correct | amend the error based on measurement temperature and measurement pressure, and can output the corrected sulfur weight ratio. This sulfur weight ratio is displayed on the sulfur weight ratio display section 49.

  In this way, the weight proportion of sulfur contained in the analyzed fuel oil can be measured. Thus, the worker can analyze the weight ratio of sulfur contained in the fuel oil to be analyzed.

  Therefore, the worker determines whether or not the weight ratio of the sulfur is equal to or less than a predetermined threshold value (for example, any value within a range of 0.1 to 4.5%). When it is determined that the weight ratio of sulfur is equal to or less than a predetermined threshold, it can be determined that the analyzed fuel oil is suitable for use in marine engines (high-quality fuel oil). .

  In this embodiment, the vertical, horizontal, and height dimensions of the sample container 47 are set to 10 to 50 mm as the amount of the sample capable of accurately measuring the weight ratio of sulfur. This is because fuel oil is secured and the fourth quality analyzer 15 can be miniaturized and carried.

  Furthermore, the reason why the X-ray tube is about 50 watts is that if it is less than 50 watts, the measurement accuracy of the weight ratio of sulfur is within the allowable range, and if it is 100 watts or more, the cost is high. This is because the size becomes large.

  It is included in the exhaust gas of the engine that the threshold value for determining whether or not the weight ratio of sulfur is appropriate is any value within the range of 0.1 to 4.5%. This is because the regulation value of the weight ratio (% by weight) of sulfur is changed according to the contents adopted by the International Maritime Organization (IMO) according to the regulation year and the regulation sea area.

  Next, a second embodiment of the second quality analyzer according to the present invention will be described with reference to FIG. The difference between the second quality analyzer 53 of the second embodiment shown in FIG. 5 and the second quality analyzer 13 of the first embodiment shown in FIG. 2 is that in the first embodiment shown in FIG. While the fuel oil to be analyzed is heated and burned so that the residue can be obtained, in the second embodiment shown in FIG. 5, the residue is obtained in the same manner as in the first embodiment shown in FIG. Furthermore, the weight of the residue is automatically weighed by the first weight measuring unit 54, and the measured weight value can be recorded by the temperature / weight recording unit 55.

  Other than this, the second embodiment is the same as the first embodiment shown in FIG. 2, and the same parts are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 5, the first weight measuring unit 54 automatically calculates the weight (first weight) of the fuel oil (including fine particles remaining after combustion of the fuel oil) contained in the sample container 30. For example, a load cell.

  As shown in FIG. 5, the first weight measuring unit 54 is provided on the main body case 25, and the sample container 30 is suspended from the tip of the first weight measuring unit 54 via a wire 56. This wire 56 is inserted through an insertion tube 57 provided so as to be inserted into the main body case 25 and the heat insulating material 29, and the wire 56 does not generate a frictional resistance between the main body case 25 and the heat insulating material 29. I am doing so. This prevents a measurement error of the residue weight (first weight).

  The temperature weight recording unit 55 can record the temperature in the main body case 25 measured by the temperature sensor 27 and the weight of the fuel oil measured by the first weight measurement unit 54.

  According to the second embodiment shown in FIG. 5, the weight of the fuel oil in the sample container 30 can be sequentially measured by the first weight measuring unit 54. The temperature / weight recording unit 55 includes the temperature in the main body case 25 measured by the temperature sensor 27 and the fuel oil measured by the first weight measurement unit 54 (including fine particles remaining after combustion of the fuel oil). The first weight can be recorded.

  Therefore, as shown in FIG. 4, for example, the temperature-weight recording unit 55 records on the recording paper the process in which the fuel oil burns and its weight decreases while raising the heating combustion temperature to around 400 ° C. Therefore, the operator records on the recording paper that the desired low molecular weight component burns and burns out along with the combustion temperature, and that the high molecular component remains as a residue without burning. You can see and recognize.

  Further, the temperature display control unit 28 included in the second quality analyzer 53 can display the temperature measurement value obtained by the temperature sensor 27 and the first weight obtained by the first weight measurement unit 54.

Next, first to fourth determination examples in which fuel oil is analyzed and determined using the first to fourth quality analyzers 12 to 15 will be described.
(First judgment example)
The first determination example is an example in which determination is performed using the liquid first quality analyzer 12 shown in FIG.

First, about 200 ml of C heavy oil A was collected from the ground tank and carried into the ship. About 50 ml of that was put into a 100 ml glass container (sample container 22), a glass float having a weight of 40.00 g was immersed in fuel oil, and the weight at the time of immersion was measured with a balance (not shown) (density) Measuring unit 18). Next, a glass container (sample container 23) is placed inside a metal container with a heater (heating unit 21) wound outside, heated to 50 ° C., and then with a vibration viscometer (viscosity measuring unit 19). The viscosity was measured. From these data, the data processor (calculation display unit 17) displayed a 15 ° C. density of 971 Kg / m ³ , a 50 ° C. kinematic viscosity of 205 cSt, and a CCAI value of 839, and judged that C heavy oil A was a good fuel oil. .
(Second determination example)
The second determination example is determined using the liquid first quality analyzer 12 shown in FIG. 1, the liquid second quality analyzer 53 shown in FIG. 5, and the liquid fourth quality analyzer 15 shown in FIG. It is an example of performing.

When a small amount of C heavy oil B was loaded into the ship from the ground tank, about 200 ml was collected from the transport pipe and carried into the ship. About 50 ml of the solution was placed in a 100 ml metal container (sample container 22), and a density was measured by inserting a vibration type density meter (density measuring unit 18). Next, the metal sample container 23 is placed inside a metal container around which a heater (heating unit 21) is wound, heated to 50 ° C., and then the viscosity is measured with a vibration viscometer (viscosity measurement unit 19). did. Next, from the data, the data processor (calculation display unit 17) displayed a 15 ° C. density of 965 Kg / m ³ , a 50 ° C. kinematic viscosity of 244 cSt, and a CCAI value of 831 (first quality analysis in FIG. 1). Device 12).

  Next, from the collection container, 10.00 g is put into a container (sample container 30 which is a porcelain) and heated at 25 ° C./min while circulating air at a flow rate of 300 ml / min. 54) The weight was measured continuously. The weight at 300 ° C. was 5.20 g, the weight at 400 ° C. was 3.80 g, and the weight at 425 ° C. was 3.51 g. Thereafter, the sample container 30 is taken out at a temperature of 100 ° C. or less, and the residue weight (first weight) is 3.50 g when measured with another weight weighing machine, and the weight ratio of fine particles is set to 35% (temperature display control unit) ( Second quality analyzer 13) in FIG.

Further, about 10 g from the collection container is put in a paper container (sample container 47) covered with a transparent polyethylene sheet having a bottom of 10 μm, set in a fluorescent X-ray apparatus (X-ray tube), and the weight of sulfur. When the ratio was measured (proportional counter tube), it was displayed as 3.10% (sulfur weight ratio display section) (fourth quality analyzer 15 in FIG. 7). From the above, C heavy oil B was determined to be of good quality.
(Third determination example)
The third determination example is an example in which the determination is performed using the liquid first quality analyzer 12 shown in FIG. 1 and the liquid third quality analyzer 14 shown in FIG.

When a small amount of C heavy oil B was loaded into the ship from the ground tank, about 200 ml was collected from the transport pipe and carried into the ship. About 50 ml of the solution was placed in a 100 ml glass container (sample container 22), a glass float having a weight of 40.00 g was immersed in fuel oil, and the weight at the time of immersion was measured with a balance (density measuring unit 18). Next, the glass container (sample container 23) is placed inside the metal container on which the heater (heating unit 21) is wound outside, heated to 50 ° C., and then the viscosity is measured using a vibration viscometer (viscosity measuring unit 19). Was measured. From these data, the data processor (calculation display unit 17) displayed a 15 ° C. density of 965 Kg / m ³ , a 50 ° C. kinematic viscosity of 244 cSt, and a CCAI value of 831. (First quality analyzer 12 in FIG. 1)
Next, 25.00 g from the collection container is put into a 100 ml container, 45 ml of triene and 5 ml of limonene are added, the lid is covered, and after shaking for 3 minutes by hand, the mixture is filtered (filter section 38) at 105 ° C. After drying (hot air generating unit 40) (third quality analyzer 14 in FIG. 6), the residue weight (second weight) on the filter paper is 1.02 g, and the weight ratio of the fine particles is 4.08%. did. From the above, C heavy oil B was determined to be of good quality.
(Fourth determination example)
The fourth determination example is an example in which determination is performed using the liquid first quality analyzer 12 shown in FIG. 1 and the liquid second quality analyzer 13 shown in FIG.

When loading a small amount of C heavy oil C into the ship from the ground tank, about 200 ml was collected from the transport pipe and carried into the ship. About 50 ml of the solution was placed in a 100 ml glass container (sample container 22), and a density was measured by inserting a vibration type density meter (density measuring unit 18). Next, the glass container (sample container 23) is placed inside the metal container on which the heater (heating unit 21) is wound outside, heated to 50 ° C., and then the viscosity is measured using a vibration viscometer (viscosity measuring unit 19). Was measured. From these data, the data processor (calculation display unit 17) displayed a 15 ° C. density of 992 Kg / m ³ , a 50 ° C. kinematic viscosity of 307 cSt, and a CCAI value of 855 (first quality analyzer 12 in FIG. 1). ).

  Next, 10.00 g is put into a dish (sample container 30 which is a porcelain) from the collection container, and after heat treatment at 415 ° C. for 1 minute (second quality analyzer 13 in FIG. 2), residue weight (first weight) Was 6.70 g, and the weight ratio of the fine particles was 67%. From the above, C heavy oil C was determined to be a poor fuel oil.

  However, in the fluid first quality analyzer 12 shown in FIG. 1 of the above embodiment, the density, viscosity, and CCAI value of the fuel oil are measured or calculated by calculation, but instead of this, the liquid to be analyzed Is a liquid (including fluid) such as lubricating oil, hydraulic oil, electrolytic solution, mixed solution, and slurry other than fuel oil, the density and viscosity of such liquid are measured, and the CCAI value It may be omitted to perform the operation. Also by this, the quality of typical basic physical properties of these liquids can be recognized, and the operator can make a rough determination as to whether the liquids are good or not, that is, acceptable.

  In each of the above embodiments, the operator determines whether or not the liquid is appropriate. Instead, the determination unit is provided in the first to fourth quality analyzers 12 to 15 to perform this determination. The section is configured to perform the determination based on the obtained data. For example, the determination result is displayed on the display section with a lamp of red, yellow, green, or the like corresponding to the determination result, or displayed with characters or the like. You may make it display on a part.

  Moreover, although each said embodiment gave and demonstrated the example which uses this 1st-4th quality analyzer 12-15 in a ship, it can also be used on the ground other than this, for example.

  Further, in the second quality analysis device 53 for fluid shown in FIG. 5, the temperature display control unit 28 displays the residue weight (first weight) after the combustion of the fuel oil. In addition, the weight ratio of the residual weight in the fuel oil as a sample may be displayed.

  2 and 5, the cooling fan 58 is provided in the liquid second quality analyzers 13 and 53. However, the cooling fan 58 may be omitted.

  As described above, the liquid quality analysis method and the liquid quality analysis apparatus according to the present invention are suitable for use in, for example, a ship engine when the liquid to be analyzed is a ship fuel oil. It has an excellent effect that enables the determination of whether or not the entire amount of fuel oil is loaded in the ship before being loaded into the ship, and is applied to such a liquid quality analysis method and liquid quality analysis apparatus. Suitable for doing.

DESCRIPTION OF SYMBOLS 11 Liquid quality analyzer 12 Liquid 1st quality analyzer 13 Liquid 2nd quality analyzer 14 Liquid 3rd quality analyzer 15 Liquid 4th quality analyzer 16 Heating part 17 of liquid 2nd quality analyzer 17 Calculation display unit 18 Density measurement unit 19 Viscosity measurement unit 20 Base 21 Heating unit 22 of liquid first quality analyzer 22, 23 Sample container 25 Main body case 25a Opening of main body case 26 Air supply pump 26a Air discharge port 27 Temperature sensor DESCRIPTION OF SYMBOLS 28 Temperature display control part 29 Heat insulating material 30 Sample container 31 Air supply pipe 32 Flowmeter 33 Combustion gas outlet 34 Covering body 35 Door 36 Clamp 38 Filtration part 38a Funnel-shaped part 38b Filter medium 39 Vacuum pump 39a Inlet 40 Hot air generation part 40a Air outlet 41 Filtrate collection container 42 Lower end pipe part 43 Rubber stopper 44 Temperature display part 45 Pressure display part 47 Sample container 48 Cover sheet 49 Sulfur weight ratio display unit 50 Operation unit 51 Sample container storage 53 Second quality analyzer 54 First weight measurement unit 55 Temperature / weight recording unit 56 Wire 57 Insertion tube 58 Cooling fan 59 Cooling air outlet 60 Cooling air passage

Claims (11)

A density to obtain the density of the liquid to be analyzed at 15 ° C. and a kinematic viscosity at 50 ° C., a viscosity obtaining step;
CCAI value acquisition step of acquiring a CCAI value using the acquired density at 15 ° C. and kinematic viscosity at 50 ° C .;
A liquid quality analysis method comprising: an output step of outputting the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value. A heating and burning process in which the liquid to be analyzed is heated and burned to obtain fine particles contained in the liquid as a residue; and
The liquid quality analysis method according to claim 1, further comprising a first weight measurement step of measuring a first weight of the fine particles obtained in the heating and combustion process. An insoluble fine particle acquisition step of acquiring a mixed liquid obtained by adding a solvent to the liquid to be analyzed, filtering and drying the remaining fine particles as a residue;
3. The liquid quality analysis method according to claim 1, further comprising a second weight measurement step of measuring a second weight of the fine particles acquired in the insoluble fine particle acquisition step.   4. The liquid quality analysis method according to claim 1, further comprising a sulfur weight ratio measuring step of measuring a weight ratio of sulfur contained in the liquid to be analyzed. A density measuring unit for measuring the density of the liquid to be analyzed;
A heating section capable of heating the liquid to be analyzed to 50 ° C .;
A viscosity measuring unit for measuring the viscosity of the liquid heated to 50 ° C. by the heating unit;
Calculation for calculating the density at 15 ° C. and the kinematic viscosity at 50 ° C. based on the measured density value of the liquid obtained by the density measuring unit and the measured viscosity value of the liquid obtained by measuring the viscosity. And
A liquid quality analysis apparatus comprising: an output unit that outputs the density at 15 ° C. and the kinematic viscosity at 50 ° C. A density measuring unit for measuring the density of the liquid to be analyzed;
A heating section capable of heating the liquid to be analyzed to 50 ° C .;
A viscosity measuring unit for measuring the viscosity of the liquid heated to 50 ° C. by the heating unit;
The density at 15 ° C. and the kinematic viscosity at 50 ° C. obtained further based on the measured density value of the liquid obtained by the density measuring unit and the measured viscosity value of the liquid obtained by the viscosity measuring unit. An arithmetic unit for calculating the CCAI value by using;
A liquid quality analysis apparatus comprising: an output unit that outputs the density at 15 ° C., the kinematic viscosity at 50 ° C., and the CCAI value. In a fine particle analyzer capable of obtaining a fine particle contained in a liquid as a residue by subjecting the liquid to be analyzed by heating and combustion,
A body case capable of containing the liquid to be analyzed inside;
A sample container disposed in the body case for containing the liquid to be analyzed;
A heating unit provided in the main body case for heating and burning the liquid to be analyzed;
An air supply pump for supplying air for burning liquid into the body case;
A temperature sensor for measuring the temperature in the main body case;
A temperature control unit that controls the heating unit to control the temperature in the main body case to be within a predetermined temperature range based on a temperature measured by the temperature sensor;
A liquid quality analysis apparatus comprising: a heat insulating material provided on the main body case; and a metal covering that covers an inner surface of the heat insulating material facing the sample container. A first weight measuring unit capable of measuring the weight of the liquid in the sample container;
The temperature-weight recording unit for recording the temperature in the main body case measured by the temperature sensor and the weight of the liquid measured by the first weight measuring unit. Liquid quality analysis equipment. In the fine particle analyzer that can obtain the dried insoluble fine particles by drying the insoluble fine particles remaining after filtering the mixed liquid obtained by adding a solvent to the liquid to be analyzed,
A filtration unit for filtering the mixture;
A vacuum pump that generates a suction force that works to allow the liquid mixture to pass through the filtration unit;
A liquid quality analysis apparatus comprising: a hot air generation unit for drying insoluble fine particles remaining in the filtration unit. In a liquid quality analyzer that measures the weight percentage of sulfur in the liquid being analyzed,
A sample container for containing the liquid to be analyzed, having a bottom portion with dimensions of 10-50 mm in the longitudinal, lateral and height directions;
An approximately 50-watt X-ray tube that irradiates the liquid in the sample container with X-rays from the outside of the sample container through the bottom of the container;
The sample container can be stored, and a measurement position where the weight ratio of sulfur contained in the liquid in the sample container can be measured by the X-ray tube, and the sample container can be stored and taken out. A sample container storage movably provided at a measurement position;
A proportional counter for measuring the X-ray dose corresponding to the weight proportion of sulfur contained in the liquid in the sample container;
A liquid quality analysis comprising: a temperature / pressure correction unit for correcting an error based on a measurement temperature and a measurement pressure and outputting a corrected sulfur weight ratio with respect to the sulfur weight ratio output from the proportional counter apparatus. A liquid quality analysis apparatus according to claim 5 or 6,
A liquid quality analysis apparatus comprising one or more liquid quality analysis apparatuses of the liquid quality analysis apparatus according to any one of claims 7, 9, and 10.

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