CN216140617U - Oil tank metering device - Google Patents
Oil tank metering device Download PDFInfo
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- CN216140617U CN216140617U CN202120429124.7U CN202120429124U CN216140617U CN 216140617 U CN216140617 U CN 216140617U CN 202120429124 U CN202120429124 U CN 202120429124U CN 216140617 U CN216140617 U CN 216140617U
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Abstract
The utility model provides an oil tank metering device which comprises a tank body, a liquid level sensor, a temperature sensor, a differential pressure transmitter and a processor, wherein the top of the tank body is provided with an opening; the liquid level sensor is used for acquiring the height value of liquid in the tank body; the temperature sensor is arranged in the tank body and used for acquiring the temperature value of the liquid in the tank body; the differential pressure transmitter is arranged at the bottom of the tank body and used for acquiring a pressure value at the bottom of the tank body; the processor is respectively electrically connected with the liquid level sensor, the temperature sensor and the differential pressure transmitter and is used for calculating the quality of the liquid in the tank body according to the height value, the temperature value and the pressure value. In the oil tank metering device provided by the utility model, the liquid level sensor, the temperature sensor and the differential pressure transmitter are respectively arranged on the tank body, the liquid height value, the temperature value and the pressure value in the tank body are respectively and correspondingly obtained, and the processor calculates the quality according to the height value, the temperature value and the pressure value, so that the calculation is accurate, the interference of manpower is avoided, the efficiency is high, and the safety and the reliability are realized.
Description
Technical Field
The utility model relates to the technical field of oil tank metering, in particular to an oil tank metering device.
Background
Along with the soaring rise of oil use amount, the oil tank used for storing oil needs to be continuously improved in individual requirements, so that oil consumption is reduced, firstly, the precision is required to be improved, the stopping time of the oil tank is longer when the oil tank is used for metering, the loss of a gas station is larger, the time requirement of oil tank metering is shorter as much as possible, and the loss can be reduced.
In summary, the conventional metering device needs to be manually inserted into the oil tank to measure the liquid level in the tank, so as to calculate the volume and mass of the oil in the oil tank, which causes large error of the calculated liquid amount, low efficiency and easy occurrence of dangerous situations.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an oil tank metering device, which aims to solve the technical problems that the volume and the mass of oil in an oil tank are calculated by manually extending a metering device into the oil tank to measure the liquid level height in the oil tank, so that the calculated liquid volume error is large, the efficiency is low and dangerous conditions are easy to occur in the conventional metering device.
In order to solve the above technical problem, the present invention provides an oil tank measuring device including:
the top of the tank body is provided with an opening;
the liquid level sensor is arranged at the top of the tank body and used for acquiring the height value of the liquid in the tank body;
the temperature sensor is arranged in the tank body and used for acquiring the temperature value of the liquid in the tank body;
the differential pressure transmitter is arranged at the bottom of the tank body and used for acquiring a pressure value at the bottom of the tank body;
and the processor is respectively electrically connected with the liquid level sensor, the temperature sensor and the differential pressure transmitter and is used for calculating the quality of the liquid in the tank body according to the height value, the temperature value and the pressure value.
In some embodiments of the utility model, the processor comprises:
the density calculation module calculates the density value of the liquid in the tank body according to the height value and the pressure value;
the volume calculation module calculates a liquid volume value in the tank body according to the temperature value;
and the mass calculation module calculates the mass of the liquid in the tank body according to the density value and the volume value.
In some embodiments of the utility model, the outer wall of the tank body is provided with an insulating layer.
In some embodiments of the utility model, the insulating layer is covered with an antistatic medium layer.
In some embodiments of the present invention, the thickness of the insulating layer is 1/4 of the thickness of the tank wall of the tank body, and the thickness of the antistatic medium layer is 5/12 of the thickness of the insulating layer.
In some embodiments of the present invention, the distance between the measuring end of the differential pressure transmitter and the bottom of the tank is 500 mm.
By adopting the technical scheme, the utility model has the following beneficial effects:
in the oil tank metering device provided by the utility model, the liquid level sensor, the temperature sensor and the differential pressure transmitter are respectively arranged on the tank body, the liquid height value, the temperature value and the pressure value in the tank body are respectively and correspondingly obtained, the processor calculates the quality according to the height value, the temperature value and the pressure value, the liquid quality value in the tank body is displayed through a computer or a display device, the calculation is accurate, the manual interference is avoided, the efficiency is high, the labor cost is reduced, and the oil tank metering device is safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an oil tank metering device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an oil tank metering device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an oil tank metering device according to an embodiment of the present invention;
fig. 4 is a schematic partial cross-sectional view of a tank body of an oil tank metering device according to an embodiment of the present invention.
Reference numerals:
1: a tank body; 2: a liquid level sensor; 3: a temperature sensor; 4: a differential pressure transmitter; 5: a processor;
11: a heat-insulating layer; 12: an anti-static dielectric layer;
51: a density calculation module; 52: a volume calculation module; 53: a mass calculation module;
100: and (4) terminal equipment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
As shown in fig. 1 to 3, the tank gauging apparatus according to the present invention provided in the present embodiment includes: the device comprises a tank body 1, a liquid level sensor 2, a temperature sensor 3, a differential pressure transmitter 4 and a processor 5, wherein an opening is formed in the top of the tank body 1; the liquid level sensor 2 is arranged at the top of the tank body 1 and is used for acquiring the height value of the liquid in the tank body 1; the temperature sensor 3 is arranged in the tank body 1 and is used for acquiring the temperature value of the liquid in the tank body 1; the differential pressure transmitter 4 is arranged at the bottom of the tank body 1 and is used for acquiring a pressure value at the bottom of the tank body 1; the processor 5 is electrically connected with the liquid level sensor 2, the temperature sensor 3 and the differential pressure transmitter 4 respectively and is used for calculating the quality of the liquid in the tank body 1 according to the height value, the temperature value and the pressure value.
In the oil tank metering device provided by the embodiment of the utility model, the liquid level sensor 2, the temperature sensor 3 and the differential pressure transmitter 4 are respectively arranged on the tank body 1 to respectively and correspondingly obtain the height value, the temperature value and the pressure value of liquid in the tank body 1, the processor 5 calculates the quality according to the height value, the temperature value and the pressure value, the quality value of the liquid in the tank body 1 is displayed through the terminal equipment 100 (a computer or display equipment), the calculation is accurate, the interference of manpower is avoided, the efficiency is high, the labor cost is reduced, and the safety and the reliability are realized. In some embodiments of the present invention, as shown in fig. 3, in particular, the processor 5 comprises:
a density calculation module 51, wherein the density calculation module 51 calculates the density value of the liquid in the tank 1 according to the height value and the pressure value;
the volume calculation module 52, the volume calculation module 52 calculates the volume value of the liquid in the tank body 1 according to the temperature value;
and the mass calculating module 53 is used for calculating the mass of the liquid in the tank body 1 according to the density value and the volume value by the mass calculating module 53.
Specifically, the calculation method is as follows:
1. calculating apparent density of the oil product;
calculating formula P = ρ gh; if the oil tank has a floating plate, the delivery mass is mFloating body(ii) a A calculation formula can be set in the computer;
ρvision=（PMeasuring-mFloating body*g/ΠR2) (h-0.5); it is composed ofIn, PMeasuringA pressure value obtained for the differential pressure transmitter 4; m isFloating bodyThe mass of the floating plate; h is a height value obtained by the liquid level sensor; 0.5 is the height from the differential pressure transmitter 4 to the bottom of the tank 1.
(in normal conditions, the reading of the liquid level meter is a reading corrected by temperature, and if the liquid level is not corrected by the computer, the liquid level needs to be corrected according to the following formula:
hfruit of Chinese wolfberry=hReading*【1+2α（tLiquid level meter-20); wherein, the temperature tLiquid level meterThe temperature of the liquid level meter itself; alpha is the linear expansion coefficient of the liquid level meter, and alpha = 0.000012/DEG C) is taken as the carbon steel material;
2. and (3) volume calculation:
1) if the tank body 1 is a non-heat-preservation tank:
Vt=（VB+ΔVp）【1+2α（t-20）】；
2) if the tank body 1 is a heat-preserving tank;
Vt=（VB+ΔVp）【1+3α（t-20）】；
wherein: vB-looking up the tank capacity table values; Δ VpIs a static pressure correction coefficient, which is a pressure correction coefficient in a tank capacity table, and the corresponding static pressure correction value is multiplied by the actual density of the liquid and the density of water at 4 ℃ of 1g/cm when in use3The ratio of (a) to (b). I.e. Δ Vp=ρ20VCF/1; alpha is the linear expansion coefficient of the liquid level meter, and alpha = 0.000012/DEG C) is taken as the carbon steel material; t is the tank wall temperature; t = (7 × t)y+tq）/8；tyThe temperature of the liquid in the tank is measured; t is tqThe average temperature of the air around the outside of the tank is; t in the heat-preservation tank is a temperature value of liquid in the tank, namely a temperature value obtained by the temperature sensor 3;
standard density rho of oil product in computer oil tank20=ρ20 radical+【（ρ20 is on-ρ20 radical）/(ρ， t is on-ρ， t radical)】*(ρ， t measurement-ρ， t radical)
Where ρ is， t measurementBy differenceDensity calculated by the pressure transmitter 4; rho， t radicalLooking up the table to obtain the apparent density value from the tenth position to the thousandth position which is the same as the table load value; rho， t is on-the value measured by table lookup is greater than p， t radicalApparent density value of; rho20 radical——ρ， t radicalCorresponding rho20Density; rho20 is on——ρ， t radicalCorresponding rho20Density;
computer VCF calculated values are:
VCF= VCF20 radical+【（VCF20 is on-VCF20 radical）/( ρ， 20 is on-ρ， 20 radical)】*( ρ20-ρ， 20 radical)
Where ρ is， 20 radicalLooking up the table to obtain a standard density value from a tenth position to a thousandth position, wherein the thousandth position is the same as the loading value;
ρ， 20 is on-the value of large p is determined by table look-up， 20 radicalThe standard density value of (a); VCF20 radical——ρ， 20 radicalThe corresponding VCF value; VCF20 is on——ρ， 20 is onThe corresponding VCF value; rho20-the processor 5 of the computer converts the apparent density into a standard density value;
volume VtThe calculation formula converted into V20 is as follows;
V20=Vt*VCF
3. quality calculation
m = V20 × (ρ 20-1.1); if the liquid level is below the landing position h1 of the floating plate, the calculation can be carried out by using the formula; if the liquid level is not used as the metering volume between the float h1-0.154 and h 1; if the liquid level is greater than h1, the mass of the floating disc needs to be deducted in the oil product mass calculation; that is, the calculation formula is m = V20 × (ρ 20-1.1) -mFloating disc
In the above calculation, each formula is designed to be executed in the processor 5.
In some embodiments of the present invention, as shown in fig. 4, the outer wall of the tank body 1 is provided with an insulation layer 11. The heat preservation effect of the tank body 1 is increased, so that the measurement is simpler and more convenient.
In some embodiments of the present invention, as shown in fig. 4, the insulating layer 11 is covered with an antistatic medium layer 12.
Optionally, the thickness of the insulating layer 11 is 1/4 of the thickness of the tank wall of the tank body 1, and the thickness of the antistatic medium layer 12 is 5/12 of the insulating layer 11.
In this embodiment, the anti-static dielectric layer 12 increases the anti-static effect of the tank 1, thereby playing a role in protection and improving safety. Optionally, the anti-static dielectric layer 12 can be made of an anti-static acrylic plate, in addition, the thickness of the heat insulation layer 11 is 1/4 of the thickness of the tank wall of the tank body 1, and the thickness of the anti-static dielectric layer 12 is 5/12 of the heat insulation layer 11, so that the heat insulation effect and the anti-static effect of the anti-static dielectric layer are ensured, meanwhile, the overall thickness is reduced, and the product cost is reduced.
In some embodiments of the present invention, the distance d between the measuring end of the differential pressure transmitter 4 and the bottom of the tank 1 is 500 mm.
In this embodiment, it is measured during installation of differential pressure transmitter 4, and preferably, radius R of the position where differential pressure transmitter 4 is located, that is, distance d between half position of the horizontal direction of the measuring end extending into tank 1 and the bottom of tank 1 is 500mm, and since tank 1 is metered, there is a bottom dead center, which is not metered below the dead center.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. An oil tank gauging device, comprising:
the tank comprises a tank body, wherein an opening is formed in the top of the tank body, and a heat insulation layer is arranged on the outer wall of the tank body;
the liquid level sensor is arranged at the top of the tank body and used for acquiring the height value of the liquid in the tank body;
the temperature sensor is arranged in the tank body and used for acquiring the temperature value of the liquid in the tank body;
the differential pressure transmitter is arranged at the bottom of the tank body and used for acquiring a pressure value at the bottom of the tank body;
and the processor is respectively electrically connected with the liquid level sensor, the temperature sensor and the differential pressure transmitter and is used for calculating the quality of the liquid in the tank body according to the height value, the temperature value and the pressure value.
2. The tank gauging device according to claim 1, wherein said insulating layer is covered with an antistatic dielectric layer.
3. The tank gauging device according to claim 2, wherein said insulating layer has a thickness of 1/4 a wall thickness of said tank body, and said layer of anti-static medium has a thickness of 5/12 a thickness of said insulating layer.
4. The tank gauging device according to claim 1, wherein the distance between the measuring end of said differential pressure transmitter and the bottom of said tank is 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120429124.7U CN216140617U (en) | 2021-02-27 | 2021-02-27 | Oil tank metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120429124.7U CN216140617U (en) | 2021-02-27 | 2021-02-27 | Oil tank metering device |
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| CN216140617U true CN216140617U (en) | 2022-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838785A (en) * | 2022-04-12 | 2022-08-02 | 重庆七腾科技有限公司 | Auxiliary detection device, and method and system for detecting position of part of oil tank inner part |
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2021
- 2021-02-27 CN CN202120429124.7U patent/CN216140617U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838785A (en) * | 2022-04-12 | 2022-08-02 | 重庆七腾科技有限公司 | Auxiliary detection device, and method and system for detecting position of part of oil tank inner part |
| CN114838785B (en) * | 2022-04-12 | 2023-11-17 | 七腾机器人有限公司 | Auxiliary detection device, and method and system for detecting internal layering position of oil tank |
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