CN211527531U - Multifunctional storage tank liquid level meter - Google Patents
Multifunctional storage tank liquid level meter Download PDFInfo
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- CN211527531U CN211527531U CN201921620477.4U CN201921620477U CN211527531U CN 211527531 U CN211527531 U CN 211527531U CN 201921620477 U CN201921620477 U CN 201921620477U CN 211527531 U CN211527531 U CN 211527531U
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- liquid level
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- level meter
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Abstract
The utility model discloses a multifunctional storage tank liquid level meter, which has the functions of measuring the liquid level of a storage tank, the interface between different liquids in the liquid level and the temperature and the density of the liquids, and consists of a servo motor, a controller, a signal transmission belt, a measuring box, a steel belt, a guide cable and a sleeve; because the main measuring component of the liquid level meter is completely isolated from the measured medium, compared with the existing servo liquid level meter, the liquid level meter has the advantages of high temperature resistance, high pressure resistance, corrosion resistance, better explosion-proof performance and no special requirements on the measuring environment and the measured medium; the measuring data is safe and reliable, the measuring precision is high, the application range is wide, the structure is simple, and the installation is convenient; meanwhile, the system can control the measurement process and display the measured value on site, can receive remote control and output measurement data of the monitoring room through the controller interface, displays the liquid level of the storage tank on a computer of the monitoring room in real time, and displays the interface among different liquids in the liquid level and the temperature density of the liquid at any time.
Description
Technical Field
The invention relates to a measurement method for liquid level of a storage tank, an interface between different liquids in the liquid level and temperature and density of the liquid.
Background
The liquid level meters used for oil product metering in the oil depot storage tank in the petrochemical industry are roughly divided into three types: a magnetostrictive level gauge, a radar level gauge, a servo level gauge; the magnetostrictive liquid level meter brings certain measurement error due to the temperature density change of the measured liquid, the measuring range is too high and is not easy to install, and the floater is easy to be clamped by the conduit; the radar liquid level meter is difficult to measure an oil-water interface, difficult to process when a fault occurs and limited in use; the servo liquid level meter is characterized in that measurement information is provided by a floater contacting a measured medium or a sensor arranged in the floater, and the state, physical parameters and the like of the measured medium change along with different time and external conditions, so the authenticity of the information acquired by the floater or the sensor is greatly influenced by a measuring environment, occasions and the measured medium, the measuring precision of the liquid level meter is influenced, the application range is limited, and the investment cost is high.
Disclosure of Invention
The liquid level meter is characterized in that a sleeve with a bottom is vertically arranged in one side of a storage tank, a steel belt with height information (the precision is millimeter) and a guide rope which enables a measuring box to move directionally are arranged in the sleeve; the steel belt and the guide cable are preset with certain tension and are parallel to the axis of the sleeve; a servo motor and a controller are arranged above the sleeve, the upper end of the signal transmission belt is connected with a hub of the servo motor, and the lower end of the signal transmission belt is connected with the upper part of the measuring box; the main measuring component of the liquid level meter is completely isolated from the measured medium, so that compared with the existing servo liquid level meter, the liquid level meter has the advantages of high temperature resistance, high pressure resistance, corrosion resistance, better explosion-proof performance and no special requirements on the measuring environment and the measured medium; the device has the advantages of safe and reliable measurement data, high measurement precision, wide application range, simple structure and convenient installation.
The liquid level meter can be used for controlling the measurement process and displaying the measured value on site, receiving remote control and outputting measurement data of a monitoring room through a controller interface, displaying the liquid level of the storage tank on a computer of the monitoring room in real time, displaying the interface between different liquids in the liquid level and the temperature density of the liquid at any time, calculating the reserve volume of the storage tank, and providing accurate and reliable data for the automatic management of the actual storage tank area.
Drawings
The attached drawing is a structural schematic diagram of the invention.
The liquid level meter comprises a servo motor 1, a controller 2, a signal transmission belt 3, a measuring box 4, a steel belt 5, a guide rope 6 and a sleeve 7.
Detailed Description
The working process of the liquid level meter is described below by means of a schematic structural diagram:
measuring the liquid level: after the liquid level meter receives an instruction of a field controller or a remote control (monitoring room), when liquid is added into the storage tank and the liquid level rises, the liquid level exceeds a detection probe of the measuring box, the measuring box sends out the instruction, the servo motor hub is controlled by the signal transmission belt to rotate clockwise, the measuring box moves upwards along the guide cable, and height information on the steel belt is obtained; the liquid level rises continuously, the process is repeated continuously until the liquid is added to the storage tank and the liquid level is stable, and the detection probe of the measuring box is positioned on a liquid-gas interface; when the liquid level of the storage tank is reduced and the liquid level is lowered, the detection probe of the measuring box is exposed out of the liquid level, the measuring box sends an instruction, the servo motor hub is controlled by the signal transmission belt to rotate anticlockwise, and the measuring box moves downwards along the guide rope and obtains height information on the steel belt; the liquid level continuously drops, the process is continuously repeated until the liquid storage tank stops reducing the liquid, the liquid level is stable and unchanged, and the detection probe of the measuring box is positioned on a liquid-gas interface; whether the liquid level rises or falls, the information detected by the measuring box is synchronously transmitted to the controller (the liquid level is dynamically displayed on site after processing) through the signal transmission belt and is output through the controller interface.
Measuring liquid interface and liquid temperature density: the measuring box detects the probe to be in the liquid-gas interface, after the liquid level meter receives the instruction of the site controller or the remote control (monitoring room), the controller controls the servo motor hub to rotate anticlockwise, the measuring box moves downwards along the guide cable, simultaneously the measuring box scans the temperature density of the liquid, the measuring box also obtains the height of the interface between different liquids in the scanning process, the scanning is finished until the calibrated lowest liquid level, the scanning information is synchronously transmitted to the controller (the interface height between different liquids and the temperature density of the corresponding liquid are displayed on site after processing) through the signal transmission belt and is output through the controller interface.
Claims (2)
1. A multifunctional storage tank liquid level meter is characterized in that a sleeve (7) with a bottom is vertically arranged in one side of a storage tank, two ends of a steel belt (5) and a guide rope (6) are respectively fixed at the bottom and the top of the sleeve (7), a servo motor (1) and a controller (2) are arranged above the sleeve (7), the upper end of a signal transmission belt (3) is connected with a hub of the servo motor (1), the lower end of the signal transmission belt is connected with the upper part of a measurement box (4), and the measurement box (4) moves up and down along the guide rope (6).
2. The multifunctional tank level gauge according to claim 1, characterized in that the steel strip (5) has height information with an accuracy of millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921620477.4U CN211527531U (en) | 2019-09-26 | 2019-09-26 | Multifunctional storage tank liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921620477.4U CN211527531U (en) | 2019-09-26 | 2019-09-26 | Multifunctional storage tank liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211527531U true CN211527531U (en) | 2020-09-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921620477.4U Active CN211527531U (en) | 2019-09-26 | 2019-09-26 | Multifunctional storage tank liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211527531U (en) |
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2019
- 2019-09-26 CN CN201921620477.4U patent/CN211527531U/en active Active
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