CN114111955A - Metering device for volume and mass of oil in transportation oil tank - Google Patents
Metering device for volume and mass of oil in transportation oil tank Download PDFInfo
- Publication number
- CN114111955A CN114111955A CN202111499551.3A CN202111499551A CN114111955A CN 114111955 A CN114111955 A CN 114111955A CN 202111499551 A CN202111499551 A CN 202111499551A CN 114111955 A CN114111955 A CN 114111955A
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- Prior art keywords
- pressure transmitter
- oil
- pressure
- input end
- tank
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- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
- G01F22/02—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for involving measurement of pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a metering device for volume and quality of oil in a transport oil tank, which comprises a first pressure transmitter, a second pressure transmitter and an integrating instrument, wherein the signal output ends of the first pressure transmitter and the second pressure transmitter are respectively connected with the signal input end of the integrating instrument; an exhaust valve is arranged at the top of the measuring cylinder, and an oil inlet and outlet valve is arranged on a connecting pipe at the lower part of one side of the measuring cylinder. The invention can accurately measure the mass and volume of the oil in the oil tank.
Description
Technical Field
The invention relates to a metering device for the volume and mass of oil in a transport oil tank.
Background
The oil tank truck is mainly used for oil filling, transportation, oil storage and the like. When loading and unloading oil from the oil tank of the oil tank truck, the volume of the oil in the tank and the volume of the oil out of the tank are measured by a flowmeter arranged on an oil pipeline connected with the bottom of the oil tank. The existing flowmeter arranged on an oil pipeline can only measure the volume of oil in an oil inlet tank and an oil outlet tank, when the oil tank needs to be transported, on one hand, the mass of the oil in the oil outlet tank needs to be measured, and because the components of the oil loaded in the oil tank are not fixed and the density of the oil is not a fixed numerical value, the flowmeter in the prior art can not measure the mass of the oil in the oil outlet tank; on the other hand, during transportation in an oil tank, in order to ensure safe transportation, the volume of the oil in the tank is generally required to be controlled between 87% and 93% of the tank volume, and the height of the oil in the tank at the moment is called as a safety control height, namely the height of the oil in the tank during transportation cannot exceed the safety control height.
Disclosure of Invention
The invention aims to solve the technical problem of providing a metering device for the volume and the mass of oil in a transportation oil tank, and the metering device can accurately meter the mass and the volume of oil in the oil tank after being applied.
In order to solve the technical problem, the invention provides a metering device for volume and mass of oil in a transport oil tank, which comprises a first pressure transmitter, a second pressure transmitter and an integrating instrument, wherein the signal output ends of the first pressure transmitter and the second pressure transmitter are respectively connected with the signal input end of the integrating instrument, the metering device also comprises a vertical measuring cylinder, the lower part of one side of the measuring cylinder is communicated with a horizontal connecting pipe used for being communicated with the bottom of the oil tank, the upper part and the lower part of the other side of the measuring cylinder are respectively communicated with an upper pressure guide pipe and a lower pressure guide pipe, the axis of the lower pressure guide pipe and the axis of the connecting pipe are positioned on the same straight line, the distance delta h between the axis of the upper pressure guide pipe and the axis of the lower pressure guide pipe is more than 0 and less than or equal to the safety control height, the input end of the first pressure transmitter is connected with the lower pressure guide pipe, and the input end of the second pressure transmitter is connected with the upper pressure guide pipe; an exhaust valve is arranged at the top of the measuring cylinder, and an oil inlet and outlet valve is arranged on a connecting pipe at the lower part of one side of the measuring cylinder.
By adopting the metering device for the volume and the mass of the oil in the transportation oil tank with the structure, when the height of the oil in the tank is more than or equal to delta h, the volume of the oil in the oil tank can be obtained in the integrating instrument by utilizing the tank capacity meter of the oil tank, so that the volume of the oil loaded into the oil tank can be controlled to be 87% -93% of the tank capacity, the safe transportation of the oil tank can be ensured, meanwhile, the invention can calculate the density of the oil in the tank by the integrating instrument, and then the mass of the oil in the tank can be calculated according to the volume of the oil in the tank.
As a further improvement of the invention, the system also comprises a third pressure transmitter and a fourth pressure transmitter, wherein the signal output ends of the third pressure transmitter and the fourth pressure transmitter are respectively connected with the signal input end of the integrating instrument, the input end of the third pressure transmitter is also connected with the lower pressure guide pipe, and the input end of the fourth pressure transmitter is also connected with the upper pressure guide pipe. After the third pressure transmitter and the fourth pressure transmitter are added, the pressure at the bottom in the oil tank can adopt the average value of the sum of the pressures transmitted by the first pressure transmitter and the third pressure transmitter, and the pressure at the upper part of the measuring cylinder can adopt the average value of the sum of the pressures transmitted by the second pressure transmitter and the fourth pressure transmitter, so that the measuring result can be more accurate.
As a further improvement of the invention, the system also comprises a fifth pressure transmitter and a sixth pressure transmitter, wherein the signal output ends of the fifth pressure transmitter and the sixth pressure transmitter are respectively connected with the signal input end of the integrating instrument, the input end of the fifth pressure transmitter is also connected with the lower pressure guide pipe, and the input end of the sixth pressure transmitter is also connected with the upper pressure guide pipe. After the fifth pressure transmitter and the sixth pressure transmitter are further added, the pressure at the bottom in the oil tank can adopt the average value of the sum of the pressures transmitted by the first pressure transmitter, the third pressure transmitter and the fifth pressure transmitter, and the pressure at the upper part of the measuring cylinder can adopt the average value of the sum of the pressures transmitted by the second pressure transmitter, the fourth pressure transmitter and the sixth pressure transmitter, so that the accuracy of the measuring result can be further ensured.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a metering device for measuring volume and mass of oil in a transportation tank according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a metering device for measuring volume and mass of oil in a transportation tank according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a metering device for measuring the volume and mass of oil in a transportation tank according to a third embodiment of the present invention.
Detailed Description
Referring to fig. 1, the device for measuring volume and mass flow of oil in and out of a tank of the invention comprises a first pressure transmitter 1, a second pressure transmitter 2 and an integrating instrument 3, wherein signal output ends of the first pressure transmitter 1 and the second pressure transmitter 2 are respectively connected with a signal input end of the integrating instrument, the device also comprises a vertical measuring cylinder 4, a horizontal connecting pipe 5 communicated with the bottom of the oil tank 100 is communicated with the lower part of one side of the measuring cylinder, upper and lower pressure guide pipes 6 and 7 are respectively communicated with the upper and lower parts of the other side of the measuring cylinder, the axis of the lower pressure guide pipe 7 and the axis of the connecting pipe 5 are positioned on the same straight line, the distance delta h between the axis of the upper pressure guide pipe 6 and the axis of the lower pressure guide pipe 7 is more than 0 and less than or equal to the safety control height, the input end of the first pressure transmitter 1 is connected with the lower pressure pipe 7, and the input end of the second pressure transmitter 2 is connected with the upper pressure pipe 6; an exhaust valve 8 is arranged at the top of the measuring cylinder 4, and an oil inlet and outlet valve 9 is arranged on a connecting pipe 5 at the lower part of one side of the measuring cylinder.
When the invention is used, the oil inlet and outlet valve 9 on the lower connecting pipe at one side of the measuring cylinder is connected with the bottom of the oil tank through the oil inlet and outlet valve connector 10, the axis of the connecting pipe 5 and the bottom in the tank are positioned on the same horizontal plane, and the distance delta h between the axes of the upper and lower pressure guide pipes 6 and 7 is more than 0 and less than or equal to the safety control height.
According to the invention, the volume and the mass of the oil in the oil tank can be calculated in the integrating instrument only when the height of the oil in the oil tank is more than or equal to delta h.
According to the invention, the pressure of the bottom in the oil tank measured by the first pressure transmitter 1 is P1, the pressure of the upper part of the measuring cylinder measured by the second pressure transmitter 2 is P2, P1-P2 = delta P = rho g delta h, wherein delta h is a fixed value, delta P is the difference between P1 and P2, and g is a constant, so that the density value rho of the oil in the oil tank can be calculated in the integrating instrument, and the mass of the oil in the oil tank can be calculated according to the volume value of the oil in the oil tank.
The volume of the oil in the oil tank is calculated in the integrating instrument by the following method: the pressure of the bottom in the oil tank measured by the first pressure transmitter 1 is P1, P1= ρ gh1, wherein the density value ρ of the oil in the oil tank is known (calculated in the formula of the previous stage), g is a constant, and P1 is the pressure value of the bottom in the oil tank measured by the first pressure transmitter 1, so the height h1 of the oil in the oil tank can be calculated, and the volume of the oil in the oil tank can be obtained in the integrating instrument by utilizing the tank capacity table of the oil tank.
Referring to fig. 2 again, the present invention further includes a third pressure transmitter 11 and a fourth pressure transmitter 21, signal output ends of the third pressure transmitter 11 and the fourth pressure transmitter 21 are respectively connected to a signal input end of the integrating instrument 3, an input end of the third pressure transmitter is also connected to the lower pressure pipe 7, and an input end of the fourth pressure transmitter is also connected to the upper pressure pipe 6.
Referring to fig. 3 again, the present invention further includes a fifth pressure transmitter 12 and a sixth pressure transmitter 22, signal output ends of the fifth pressure transmitter 12 and the sixth pressure transmitter 22 are respectively connected to a signal input end of the integrating instrument 3, an input end of the fifth pressure transmitter is also connected to the lower pressure pipe 7, and an input end of the sixth pressure transmitter is also connected to the upper pressure pipe 6.
Claims (3)
1. A metering device for volume and mass of oil in a transportation oil tank is characterized in that: the device comprises a first pressure transmitter (1), a second pressure transmitter (2) and an integrating instrument (3), wherein the signal output ends of the first pressure transmitter (1) and the second pressure transmitter (2) are respectively connected with the signal input end of the integrating instrument, the device also comprises a vertical measuring cylinder (4), the lower part of one side of the measuring cylinder is communicated with a horizontal connecting pipe (5) communicated with the bottom of the oil tank (100), the upper part and the lower part of the other side of the measuring cylinder are respectively communicated with upper pressure guide pipes (6) and lower pressure guide pipes (7), the axes of the lower pressure guide pipes (7) and the axes of the connecting pipes (5) are positioned on the same straight line, the distance delta h between the axis of the upper pressure guide pipe (6) and the axis of the lower pressure guide pipe (7) is larger than 0 and smaller than or equal to the safety control height, the input end of the first pressure transmitter (1) is connected with the lower pressure guide pipes (7), the input end of the second pressure transmitter (2) is connected with the upper pressure guide pipe (6); an exhaust valve (8) is arranged at the top of the measuring cylinder (4), and an oil inlet and outlet valve (9) is arranged on a connecting pipe (5) at the lower part of one side of the measuring cylinder.
2. The apparatus for measuring volume and mass of oil in a transportation tank as claimed in claim 1, wherein: the pressure sensor is characterized by further comprising a third pressure transmitter (11) and a fourth pressure transmitter (21), wherein the signal output ends of the third pressure transmitter (11) and the fourth pressure transmitter (21) are respectively connected with the signal input end of the integrating instrument (3), the input end of the third pressure transmitter is also connected with the lower pressure guide pipe (7), and the input end of the fourth pressure transmitter is also connected with the upper pressure guide pipe (6).
3. A device for measuring the volume and mass of oil in a transport tank as defined in claim 2, wherein: the pressure sensor is characterized by further comprising a fifth pressure transmitter (12) and a sixth pressure transmitter (22), wherein the signal output ends of the fifth pressure transmitter (12) and the sixth pressure transmitter (22) are respectively connected with the signal input end of the integrating instrument (3), the input end of the fifth pressure transmitter is also connected with the lower pressure guide pipe (7), and the input end of the sixth pressure transmitter is also connected with the upper pressure guide pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499551.3A CN114111955A (en) | 2021-12-09 | 2021-12-09 | Metering device for volume and mass of oil in transportation oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499551.3A CN114111955A (en) | 2021-12-09 | 2021-12-09 | Metering device for volume and mass of oil in transportation oil tank |
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| Publication Number | Publication Date |
|---|---|
| CN114111955A true CN114111955A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111499551.3A Pending CN114111955A (en) | 2021-12-09 | 2021-12-09 | Metering device for volume and mass of oil in transportation oil tank |
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| CN (1) | CN114111955A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229842A (en) * | 1996-02-22 | 1997-09-05 | Mitsubishi Heavy Ind Ltd | On-line type liquid density measuring apparatus |
| CN101750263A (en) * | 2009-12-31 | 2010-06-23 | 浙江德创环保科技有限公司 | Serosity density measurement method and device |
| CN104165664A (en) * | 2014-08-22 | 2014-11-26 | 辽宁毕托巴科技有限公司 | Pitot integrated mass flowmeter |
| CN104515566A (en) * | 2014-12-19 | 2015-04-15 | 中冶南方工程技术有限公司 | Steam drum liquid level measuring device, system and method |
| CN204854878U (en) * | 2015-07-23 | 2015-12-09 | 毕托巴（上海）科技有限公司 | Wide -range fluid reservoir liquid level measurement device |
| CN204902902U (en) * | 2015-07-23 | 2015-12-23 | 毕托巴（上海）科技有限公司 | Low velocity of flow to high flow rate wide range clings to flowmeter than pitot |
| CN205919871U (en) * | 2016-08-26 | 2017-02-01 | 铁岭铁光仪器仪表有限责任公司 | Vapour side correction formula steam pocket differential pressure fluviograph |
| CN107305176A (en) * | 2016-04-20 | 2017-10-31 | 毕托巴（上海）科技有限公司 | The measurement apparatus of oil plant averag density in a kind of oil tank |
| CN211504313U (en) * | 2020-04-21 | 2020-09-15 | 太原师范学院 | Intelligent liquid level meter with density detection function |
| CN212007412U (en) * | 2020-06-19 | 2020-11-24 | 北京国电龙源环保工程有限公司 | Liquid level measuring system of desulfurization absorption tower |
| CN112197832A (en) * | 2020-11-04 | 2021-01-08 | 辽宁利锐自动化仪器仪表有限公司 | Self-calibration combined type water level gauge |
| CN112665682A (en) * | 2020-12-17 | 2021-04-16 | 中广核研究院有限公司 | High-temperature high-pressure container liquid level measuring system under marine environment |
-
2021
- 2021-12-09 CN CN202111499551.3A patent/CN114111955A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229842A (en) * | 1996-02-22 | 1997-09-05 | Mitsubishi Heavy Ind Ltd | On-line type liquid density measuring apparatus |
| CN101750263A (en) * | 2009-12-31 | 2010-06-23 | 浙江德创环保科技有限公司 | Serosity density measurement method and device |
| CN104165664A (en) * | 2014-08-22 | 2014-11-26 | 辽宁毕托巴科技有限公司 | Pitot integrated mass flowmeter |
| CN104515566A (en) * | 2014-12-19 | 2015-04-15 | 中冶南方工程技术有限公司 | Steam drum liquid level measuring device, system and method |
| CN204854878U (en) * | 2015-07-23 | 2015-12-09 | 毕托巴（上海）科技有限公司 | Wide -range fluid reservoir liquid level measurement device |
| CN204902902U (en) * | 2015-07-23 | 2015-12-23 | 毕托巴（上海）科技有限公司 | Low velocity of flow to high flow rate wide range clings to flowmeter than pitot |
| CN107305176A (en) * | 2016-04-20 | 2017-10-31 | 毕托巴（上海）科技有限公司 | The measurement apparatus of oil plant averag density in a kind of oil tank |
| CN205919871U (en) * | 2016-08-26 | 2017-02-01 | 铁岭铁光仪器仪表有限责任公司 | Vapour side correction formula steam pocket differential pressure fluviograph |
| CN211504313U (en) * | 2020-04-21 | 2020-09-15 | 太原师范学院 | Intelligent liquid level meter with density detection function |
| CN212007412U (en) * | 2020-06-19 | 2020-11-24 | 北京国电龙源环保工程有限公司 | Liquid level measuring system of desulfurization absorption tower |
| CN112197832A (en) * | 2020-11-04 | 2021-01-08 | 辽宁利锐自动化仪器仪表有限公司 | Self-calibration combined type water level gauge |
| CN112665682A (en) * | 2020-12-17 | 2021-04-16 | 中广核研究院有限公司 | High-temperature high-pressure container liquid level measuring system under marine environment |
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Application publication date: 20220301 |
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