KR20170028527A - Discharge Measurement System For Oil Tank Using Gradient Data - Google Patents

Discharge Measurement System For Oil Tank Using Gradient Data Download PDF

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Publication number
KR20170028527A
KR20170028527A KR1020150125224A KR20150125224A KR20170028527A KR 20170028527 A KR20170028527 A KR 20170028527A KR 1020150125224 A KR1020150125224 A KR 1020150125224A KR 20150125224 A KR20150125224 A KR 20150125224A KR 20170028527 A KR20170028527 A KR 20170028527A
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South Korea
Prior art keywords
flow rate
tank
tilt
oil
height
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KR1020150125224A
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Korean (ko)
Inventor
오희재
최동수
이수민
반효진
이주연
임윤재
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주식회사 디앤샤인
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Priority to KR1020150125224A priority Critical patent/KR20170028527A/en
Publication of KR20170028527A publication Critical patent/KR20170028527A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/0084—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume for measuring volume
    • 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
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flow rate measurement system for a fuel tank using slope information that can accurately calculate an actual flow rate by reflecting tilt information in measuring a flow rate of an oil tank installed in the ground or on the ground, A flow rate calculation means for calculating a flow rate of the stored oil; A tilt sensing means for sensing a tilt of the receiving tank; And an integrated controller for receiving and storing the processed data of the flow rate calculating means and the tilt detecting means, wherein the flow rate calculating means receives the tilt information of the receiving tank detected by the tilt detecting means, And the flow rate is corrected.

Description

[0001] The present invention relates to a flow measurement system for a fluid tank using gradient information,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a flow rate measurement system for a fuel tank using tilt information capable of accurately calculating an actual flow rate by reflecting tilt information in measuring a flow rate of an oil tank installed in the ground or the ground.

In a facility that sells or distributes oil such as gas stations, the flow rate of the oil is checked in real time in order to carry out inventory management of the oil.

For this purpose, the oil is stored in the oil tank, and the capacity of the oil contained in the oil tank is checked through an analog or digital gauge mounted on the oil tank.

The method of measuring the flow rate of the oil contained in the oil tank may be variously performed. Generally, a method of measuring the height of the oil contained in the tank using a sensor and calculating the total flow rate by converting the height of the oil into a unit volume may be used .

However, when installing the oil tank, the oil tank is mostly buried in the ground. Therefore, since the conventional oil measurement method does not reflect the error of the installation condition of the actual tank or the ground environment, The flow measurement by the method can be said to be large.

For example, as shown in FIG. 1 and FIG. 2, when a 50,000 liter tank 1 used in a gas station or the like is used as a reference, a maximum flow rate of about 225 L is changed when the flow height is changed by 1 cm. If the inclination of the tank 1 is tilted by about 2 degrees due to a defect or subsidence, it is confirmed that an error of ± 12.9 cm is obtained according to the measurement point of the level gauge 2 for measuring the height of the oil.

This causes a flow error of more than +/- 2000L at the time of conversion into the flow rate, which makes it difficult to measure the accurate flow rate in the inventory management of the oil, thereby causing economic loss.

Recently, there has been a demand for a system capable of accurately calculating the flow rate by measuring the flow rate in consideration of the installation condition of the tank or the slope of the ground environment as an accurate inventory management purpose of the oil.

Korean Patent Publication No. 2013-0042377 (Apr. 26, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a tilt information And an object of the present invention is to provide a flow rate measuring system for a fuel tank using the flow rate measuring device.

In order to achieve the above object, a system for measuring a flow rate of a fuel tank using tilt information according to the present invention includes: a flow rate calculation means for calculating a flow rate of oil contained in a storage tank; A tilt sensing means for sensing a tilt of the receiving tank; And an integrated controller for receiving and storing the processed data of the flow rate calculating means and the tilt detecting means, wherein the flow rate calculating means receives the tilt information of the receiving tank detected by the tilt detecting means, And the flow rate is corrected.

As one example, the flow rate calculation means may include: a memory storing specification information including an area and a volume of the accommodation tank; A level gauge for measuring the height of the oil contained in the internal space of the receiving tank; And a calculation module for calculating a flow rate by converting the height of the oil measured by the level gauge into a volume on the basis of the specification information of the storage tank stored in the memory.

As one example, the tilt sensing means may include a three-axis acceleration sensor installed in the receiving tank or the level gauge for sensing the tilt in the X, Y, Z directions to generate and transmit a sensing signal, The means calculates the actual oil level height h2 for each point according to the length of the receiving tank based on the height h1 of the receiving tank measured in the level gauge and calculates the actual oil level height h2 based on the calculated actual oil level height h2 And a correction module that calculates the total flow rate of the storage tank by integrating the flow rate of the points.

As one example, the total flow rate of the storage tank calculated by the correction module is calculated by the following equation,

[Mathematical Expression]

Figure pat00001

H (cm) is the height of the oil level measured by the level gauge, h2 (cm) is the height of the water level measured by the level gauge, L (cm) is the length of the receiving tank, Is an actual height of the oil surface.

As one example, the actual oil level height h2 of the receiving tank is calculated by the following equation,

[Mathematical Expression]

Figure pat00002

Here, h1 (cm) is the height of the flow rate measured in the level gauge, refx (cm) is the installation position of the level gauge, and d () is the inclination of the storage tank.

As an example, the position refx (cm) of the level gauge is a distance value from one side surface close to the level gauge on both sides with respect to the transverse section of the receiving tank, and the inclination d (°) And is an angle value measured based on a plane perpendicular to the level gauge.

As an example, the integrated control unit may include a monitoring unit for visually outputting real-time processing data or accumulated accumulated data received from the flow rate calculating unit and the tilt detecting unit.

 As an example, the integrated control unit may determine that an abnormal situation including ground subsidence is detected when the slope information detected by the slope sensing unit exceeds a preset reference slope, and outputs an abnormal condition output unit ; ≪ / RTI >

The flow rate measuring system of the oil tank using the slope information of the present invention can detect the three-axis tilt information of the oil tank in real time and calculate the flow rate reflecting the tilt information, thereby reducing the deterioration of the support frame supporting the oil tank There is an advantage that accurate flow rate information can be provided even when the inclination or the position of the oil tank is changed to the external environment such as a change of the oil tank according to the flow rate.

Furthermore, it is possible to minimize the economic loss because accurate flow information is provided in managing the flow rate at the gas station and the like, thereby improving the accuracy of inventory management and estimating the leakage possibility.

1 and 2 are views for explaining a flow rate measurement method of a conventional oil tank.
3 is a block diagram schematically illustrating a flow rate measuring system of a fuel tank using slope information according to the present invention.
4 is a block diagram showing a configuration of a flow rate calculating means according to an embodiment of the present invention;
5 is a block diagram showing a configuration of an integrated control unit according to an embodiment of the present invention;
6 is a reference diagram for explaining a flow rate calculation process according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a system and method for measuring a flow rate of a fuel tank using tilt information according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a block diagram for schematically explaining a flow rate measurement system of a flow rate tank using the slope information of the present invention, and FIG. 4 is a block diagram showing a configuration of a flow rate calculation means according to an embodiment of the present invention.

FIG. 5 is a block diagram illustrating a configuration of an integrated controller according to an embodiment of the present invention, and FIG. 6 is a reference diagram for explaining a flow rate calculation process according to an embodiment of the present invention.

The flow rate measuring system (hereinafter referred to as "flow rate measuring system") of the oil tank using the tilt information of the present invention includes flow rate calculating means 200 for calculating the flow rate of the oil contained in the receiving tank 100 A tilt sensing means 300 for sensing the inclination of the receiving tank 100 and an integrated controller 400 for receiving and storing the processing data of the flow rate calculating means 200 and the tilt sensing means 300, As shown in FIG.

The storage tank 100 is a tank for storing oil in a normal closed space. In the present invention, the storage tank 100 is cylindrical, but not limited thereto.

The receiving tank 100 may be embedded in the ground in consideration of the installation environment or may be fixedly installed by a plurality of frames (not shown) on the ground.

The flow rate calculation means 200 can calculate the flow rate of the oil contained in the internal space of the storage tank 100. For example, the flow rate calculating means 200 may include a memory 210, a level gauge 220, and a calculation module 230, as shown in FIG.

The memory 210 may store specification information of the storage tank 100. The specification information may include information such as area, volume, length, diameter, weight, and the like as specification information that can be used to determine the capacity of the accommodation tank 100 as a flow measurement target.

It is natural that the specification information of the memory 210 can be inputted by the manager as basic data for calculating the flow rate, and the accommodation tank 100 can be modified for reasons such as replacement or addition installation.

The level gauge 220 can measure the height of the oil that is installed and accommodated in the internal space of the storage tank 100.

The calculation module 230 may calculate the flow rate based on the specification information of the storage tank 100 input to the memory 210 and the height information of the oil measured by the level gauge. For example, the calculation module 230 may convert the height of the oil measured by the level gauge 220 into a volume, and calculate the converted volume as a flow rate according to the specific gravity of the oil.

Meanwhile, the tilt sensing means 300 may be installed in the accommodation tank 100 or the level gauge 210 to sense the inclination of the accommodation tank 100.

It is preferable that the tilt sensing means 300 is configured to sense the inclination of the receiving tank 100 with respect to the directions of X, Y and Z, respectively.

For example, the tilt sensing means 300 can sense the inclination of the accommodation tank 100 as well as the inclination of the accommodation tank 100 by applying a gyro sensor or a 3-axis tilt sensor 310, Directional gradient detection signal can be generated.

Meanwhile, the flow rate calculation means 200 according to an embodiment of the present invention receives slope information of the storage tank 100 sensed by the slope sensing means 300 and corrects the flow rate based thereon, Accurate results can be obtained.

Specifically, the flow rate calculation means of the present embodiment may further comprise a correction module 240 for correcting the flow rate value according to the tilt information as shown in FIG.

The correction module 240 calculates the actual oil level height h2 for each point according to the length of the accommodation tank 100 based on the height h1 of the accommodation tank 100 measured by the level gauge 220 , The total flow rate of the storage tank 100 can be calculated by calculating the flow rate of the point based on the calculated actual oil level height h2 and integrating the flow rate.

That is, the correction module 240 calculates the actual height of the oil level that can be generated by the inclination of the accommodation tank 100, and calculates the flow rate by applying the actual height.

Referring to FIG. 6, the correction module 240 calculates the actual oil level height h2 of the storage tank 100 through the following equation (1).

Figure pat00003

Here, h1 (cm) is the height of the flow rate measured by the level gauge 220, refx (cm) is the installation position of the level gauge 220, and d () is the slope of the receiving tank 100.

Then, the calculation module 240 can calculate the flow rate corrected by the following equation (2), that is, the total flow rate of the storage tank, by applying the actual oil level height h2 calculated by the equation (1) .

Figure pat00004

Here, L (cm) is the length of the receiving tank 100, r (cm) is the radius of the receiving tank 100, d () is the inclination of the receiving tank 100, h1 ), And h2 (cm) is the actual height of the oil surface.

6, the position refx (cm) of the level gauge 220 is a distance value between one side surface of the level gauge 220 and one side surface of the level gauge 220 on the basis of the transverse section of the receiving tank 100 And the inclination d (°) of the receiving tank 100 may be defined as an angle value measured with respect to a surface perpendicular to the level gauge 220.

Meanwhile, the integrated control unit 400 may receive and store the process data of the flow rate calculation unit 200 and the tilt sense unit 300.

The integrated control unit 400 may include a communication module that supports wired or wireless communication with the flow rate calculation unit 200 and the tilt sense unit 300 though it is not shown in the figure, .

For example, the integrated control unit 400 may transmit a request command for collecting data to the flow rate calculating means 200 or the tilt detecting means 300, and the request command may be transmitted at a predetermined time period or in real time And receives processing data including response information from the flow rate calculating means 200 or the tilt detecting means 300, that is, the calculated flow rate data of the receiving tank 100 or the measured data of the inclination of the receiving tank 100 can do.

In addition, the flow rate calculating means 200 or the tilt detecting means 300 determines that there is an abnormality in itself and transmits the self diagnosis data to the integrated controller 400 through the integrated controller 400 .

The integration controller 400 may include a monitoring unit 410 for visually outputting received and stored data as shown in FIG.

The monitoring unit 410 may display real-time processing data or accumulated data received from the flow rate calculating unit 200 and the tilt sensing unit 300. [

On the other hand, when the tilt information sensed by the tilt sensing means 300 exceeds a predetermined reference slope, the integrated controller 400 determines that a ground subsidence or the like has occurred in the observation target ground on which the accommodation tank 100 is installed And an abnormal state output unit 420 for outputting the abnormal state.

In other words, when the installation position of the storage tank 100 is located around the road, such as a gas station, the storage tank 100 is provided with a high rate of occurrence of the subsidence due to the influences of the water supply and drainage network, The abnormal situation output unit 420 may compare and analyze the slope of the slope of the slope in any one direction to determine that the subsidence is subsidence.

The abnormality status output unit 420 outputs a step-by-step alarm such as normal, alarm, and danger together with the result information according to the determination result, thereby allowing the administrator to easily recognize the on-site situation and prompt action .

At this time, the integrated controller 400 may further include a setting unit 430 for setting a reference slope value of the abnormal state output unit 420 or the administrator setting.

The setting unit 430 may perform stepwise setting of the reference inclination to be compared. In response to the comparison, the abnormal state output unit 420 may output a stepwise alarm For example, it is possible to output an alarm in the order of caution, alarm, emergency, and the like.

It is a matter of course that the set value of the setting unit 430, the result information and the alarm of the abnormal situation output unit 420 may be displayed and provided through the monitoring unit 410 described above.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

100: accommodating tank 200: flow rate calculating means
210: memory 220: level gauge
230: Calculation module 240: Calibration module
300: tilt detection means 310: three-axis acceleration sensor
400: Integrated control unit 410: Monitoring unit
420: abnormal situation output unit 430: setting unit

Claims (8)

A flow rate calculation means for calculating a flow rate of the oil contained in the storage tank;
A tilt sensing means for sensing a tilt of the receiving tank; And
And an integrated controller for receiving and storing the processed data of the flow rate calculating means and the tilt detecting means,
The flow rate calculating means calculates,
Wherein the tilt information of the storage tank detected by the tilt sensing means is received and the flow rate is corrected based on the received tilt information.
The method according to claim 1,
The flow rate calculating means calculates,
A memory for storing specification information including an area and a volume of the storage tank;
A level gauge for measuring the height of the oil contained in the internal space of the receiving tank; And
And a calculation module for calculating a flow rate by converting the height of the oil measured by the level gauge into a volume on the basis of the information of the storage tank stored in the memory and measuring the flow rate of the oil tank using the tilt information system.
3. The method of claim 2,
Wherein the tilt sensing means comprises:
And a three-axis acceleration sensor installed in the accommodation tank or the level gauge for sensing inclination in X, Y and Z directions to generate and transmit a sensing signal,
The flow rate calculating means calculates,
The actual oil level height h2 for each point is calculated based on the height h1 of the storage tank measured by the level gauge and the flow rate of the corresponding point is calculated based on the calculated actual oil level height h2, And a correction module for calculating the total flow rate of the storage tank by integrating the total flow rate of the storage tank.
4. The method of claim 3,
The total flow rate of the storage tank calculated by the correction module is calculated by the following equation,
[Mathematical Expression]
Figure pat00005

H (cm) is the height of the oil level measured by the level gauge, h2 (cm) is the height of the water level measured by the level gauge, L (cm) is the length of the receiving tank, Wherein the tilt information is an actual height of the oil surface.
5. The method of claim 4,
The actual oil level height h2 of the receiving tank is calculated by the following equation,
[Mathematical Expression]
Figure pat00006

Wherein the flow meter measures the flow rate of the oil tank using the tilt information, wherein h1 (cm) is the height of the flow rate measured by the level gauge, refx (cm) is the installation position of the level gauge, system.
6. The method of claim 5,
The position refx (cm) of the level gauge is a distance value between one side surface adjacent to the level gauge of both sides with respect to the transverse section of the containing tank,
Wherein the inclination d (°) of the containing tank is an angle value measured based on a plane perpendicular to the level gauge.
The method of claim 1,
The integrated control unit,
And a monitoring unit for visually outputting the real-time processing data or the accumulated accumulated data received from the flow rate calculating unit and the tilt detecting unit based on the tilt information.
The method according to claim 1,
The integrated control unit,
And an abnormal condition output unit for determining an abnormal condition including a subsidence if the slope information detected by the slope detecting unit exceeds a preset reference slope and outputting result information and an alarm for the slope information. Flow Measurement System for Oil Tank Using.
KR1020150125224A 2015-09-04 2015-09-04 Discharge Measurement System For Oil Tank Using Gradient Data KR20170028527A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101876341B1 (en) * 2017-04-27 2018-07-10 주식회사 디앤샤인 Inventory management and monitoring system for oil tank
KR20180121160A (en) * 2017-04-28 2018-11-07 주식회사 디앤샤인 Discharge Measurement System For Oil Tank Using Gradient Data
KR20220057976A (en) 2020-10-30 2022-05-09 김상욱 a toilet cover lift that is easily lifted without touching it

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130042377A (en) 2011-10-18 2013-04-26 숭실대학교산학협력단 Standard volume measuring system using ultrasonic wave

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130042377A (en) 2011-10-18 2013-04-26 숭실대학교산학협력단 Standard volume measuring system using ultrasonic wave

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101876341B1 (en) * 2017-04-27 2018-07-10 주식회사 디앤샤인 Inventory management and monitoring system for oil tank
KR20180121160A (en) * 2017-04-28 2018-11-07 주식회사 디앤샤인 Discharge Measurement System For Oil Tank Using Gradient Data
KR20220057976A (en) 2020-10-30 2022-05-09 김상욱 a toilet cover lift that is easily lifted without touching it

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