CN208206230U - A kind of oil plant liquid level density measurement device - Google Patents
A kind of oil plant liquid level density measurement device Download PDFInfo
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- CN208206230U CN208206230U CN201820957387.3U CN201820957387U CN208206230U CN 208206230 U CN208206230 U CN 208206230U CN 201820957387 U CN201820957387 U CN 201820957387U CN 208206230 U CN208206230 U CN 208206230U
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Abstract
The utility model relates to a kind of oil plant liquid level density measurement devices comprising: liquidometer, for measuring the liquid level of oil plant；Densitometer, including driving portion, rotary drum, guide wheel, density sensor, cable and magnetic coder, driving portion can drive rotary drum to rotate, cable is around in the periphery of rotary drum, and the lower end of cable connect around guide wheel and with density sensor, by cable transmission, magnetic coder is used to detect the rotation angle of guide wheel for rotary drum and guide wheel.The oil plant liquid level density measurement device can be improved to the measurement accuracy of oil density, raising measurement efficiency in oil storage tank, to guarantee accurately calculating for disengaging oil mass.
Description
Technical field
The utility model relates to detection device technical fields, and in particular to a kind of oil plant liquid level density measurement device.
Background technique
In oil plant storage and process of exchange, the accurate liquid level of oil plant and density etc. in real-time measurement oil storage tank is needed to join
Number.It needs to carry out accurate measurement to the amount of oil plant in oil storage tank in product oil storage statistics and process of exchange, therefore demand is to storage
The real-time accurate perception of a series of parameter such as oil plant various parameters such as liquid level and density in oil tank.
The general height of oil storage tank is higher, therefore temperature has differences oil plant from top to bottom, and density is also very different, with
Oil plant disengaging and various such environmental effects, the numerical value of various parameters can all occur to change accordingly.Therefore how precise measurement
Liquid level and density of the oil plant in oil storage tank be the problem of more concern in industry to accurately calculate oil pump capacity, parameter
Minor deviations all can bring great loss to the buyer of oil plant or the seller.
In the prior art, the liquid level of oil plant in oil storage tank is measured by liquidometer, and the measurement of oil density
Usually by the way of human metering, oil product is extracted from oil storage tank, uses densimeter measurement.But artificial reading numerical values itself
There are error, the numerical value that different people is read is variant, meanwhile, the oil product manually extracted is generally the oil product of oil storage tank lower part, is surveyed
The density value of amount is different with the oil density actually passed in and out, and the mode low efficiency of this human metering, is not suitable for height
Frequency operation.
Therefore, how to improve to the measurement accuracy of oil density, raising measurement efficiency in oil storage tank, to guarantee to pass in and out oil mass
To accurately calculate be those skilled in the art's technical issues that need to address.
Utility model content
The purpose of the utility model is to provide a kind of oil plant liquid level density measurement devices, can be improved to oil plant in oil storage tank
The measurement accuracy of density improves measurement efficiency, to guarantee accurately calculating for disengaging oil mass.
In order to solve the above technical problems, the utility model provides a kind of oil plant liquid level density measurement device comprising: liquid level
Meter, for measuring the liquid level of oil plant；Densitometer, including driving portion, rotary drum, guide wheel, density sensor, cable and magnetic coding
Device, the driving portion can drive the rotary drum to rotate, and the cable is around in the periphery of the rotary drum, and the lower end of the cable
It is connect around the guide wheel and with the density sensor, the rotary drum and the guide wheel pass through the cable transmission, the magnetic
Encoder is used to detect the rotation angle of the guide wheel.
Since transmission is realized in the winding of cable between the rotary drum and guide wheel, i.e., cable tie dynamic density sensor rises or falls
During will drive guide wheel rotation, that is to say, that the distance that cable tie dynamic density sensor rises or falls and cable with lead
The distance that the periphery of wheel contact turns over is identical, and the densitometer of the utility model further includes magnetic coder, for detecting the rotation of guide wheel
Gyration is measured the rotation angle of guide wheel by the magnetic coder, can calculate turning for the periphery that cable is contacted with guide wheel
The distance that the distance crossed, i.e. cable tie dynamic density sensor rise or fall, and then realize the position of accurate control density sensor
It sets.
Such measurement method is kept away for the position for controlling density sensor by the circle number for measuring drum rotating
Exempt to cause the length difference bring of each astragal cable to calculate error due to the periphery winding multi-turn cable of rotary drum, so that cable drives
The control precision for the distance that density sensor rises or falls is higher.In addition, guide wheel is set between rotary drum and density sensor, it should
The setting of guide wheel advantageously ensures that stability of density sensor during raising and lowering.
The sectional area of oil storage tank passes in and out oil front and back liquid level it is known that measure the liquid level of oil plant by liquidometer
After variation determines, the volume of disengaging oil plant can be known by calculating, can calculate the oil storage tank in conjunction with the density of oil plant
Pass in and out oil mass.The density of the oil plant in liquid level variation range is detected by densitometer, i.e. oil plant measured by densitometer is close
Degree is the oil density for actually passing in and out the oil storage tank, can avoid missing due to different caused calculate of the density of the oil plant of different depth
Difference, and then guarantee the accuracy that disengaging oil mass calculates.It can ensure that fair, just in transaction.
When measuring by the densitometer to oil density, density sensor can be adjusted to any required position, also
It is the oil density saying the densitometer and capable of measuring at any liquid level, also, density sensor is put into oil plant to oil plant
Density measure during, without human intervention, high degree of automation can effectively improve detection efficiency and save manpower
Material resources, while oil density is detected by density sensor, for the mode of human metering, it can avoid due to manually grasping
Making error influences the accuracy of testing result.
Optionally, the liquid level is calculated as servo liquidometer, radar level gauge or magnetostriction type liquidometer.
Optionally, the driving portion includes motor, interior magnetic coupling and the outer magnetic coupling being sheathed on the outside of the interior magnetic coupling；
In the interior magnetic coupling and the outer magnetic coupling, one is connect with the motor drive, and another one and the rotary drum rotate synchronously.
Optionally, the motor is servo motor, and between the motor and the outer magnetic coupling or the interior magnetic coupling
It is additionally provided with retarder.
Optionally, the liquidometer and the densitometer are fixedly arranged on the tank deck of oil storage tank respectively.
Optionally, the rotary drum is additionally provided with wire casing along its periphery, and the cable is around in the wire casing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the densitometer of the oil plant liquid level density measurement device of the utility model embodiment；
Fig. 2 is the structural schematic diagram that liquid level is calculated as oil plant liquid level density measurement device when servo liquidometer；
Fig. 3 is the structural schematic diagram that liquid level is calculated as oil plant liquid level density measurement device when radar level gauge；
Fig. 4 is the structural schematic diagram that liquid level is calculated as oil plant liquid level density measurement device when magnetostriction type liquidometer.
In attached drawing 1-4, the reference numerals are as follows:
11- servo liquidometer, 12- radar level gauge, 13- magnetostriction type liquidometer, 14- float；2- densitometer, 21 drive
Dynamic portion, 211- motor, the outer magnetic coupling of 212-, magnetic coupling in 213-, 214- retarder, 22- rotary drum, 221- wire casing, 23- guide wheel,
24- cable, 25- density sensor；3- oil storage tank, 31- tank deck；4- liquid level.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
Fig. 1-4 is please referred to, Fig. 1 is the structure of the densitometer of the oil plant liquid level density measurement device of the utility model embodiment
Schematic diagram；Fig. 2 is the structural schematic diagram that liquid level is calculated as oil plant liquid level density measurement device when servo liquidometer；Fig. 3 is liquidometer
For the structural schematic diagram of radar level timing oil plant liquid level density measurement device；Fig. 4 is that liquid level is calculated as magnetostriction type liquidometer
When oil plant liquid level density measurement device structural schematic diagram.
The utility model embodiment provides a kind of oil plant liquid level density measurement device comprising liquidometer and densitometer 2,
Wherein, liquidometer is used to measure 4 height of liquid level of oil plant；As shown in Figure 1, densitometer 2 includes driving portion 21, rotary drum 22, guide wheel
23, density sensor 25 and cable 24, density sensor 25 are used to measure the density of oil plant, and cable 24 is around in the outer of rotary drum 22
Week, and the lower end of cable 24 connect around guide wheel 23 and with density sensor 25, driving portion 21 can drive rotary drum 22 to rotate, with
Realize that take-up and unwrapping wire make cable 24 that density sensor 25 be driven to rise or fall.
Meanwhile since transmission is realized in the winding of cable 24 between the rotary drum 22 and guide wheel 23, i.e. cable 24 is passed with dynamic density
Sensor 25 will drive guide wheel 23 to rotate during rising or falling, that is to say, that cable 24 drives density sensor 25 to rise
Or the distance of decline is identical as the periphery that cable 24 is contacted with guide wheel 23 distance turned over, the densitometer 2 in the present embodiment also wraps
Magnetic coder (not shown) is included, for detecting the rotation angle of guide wheel 23, the rotation of guide wheel 23 is measured by the magnetic coder
Gyration can calculate the distance of the periphery that cable 24 is contacted with guide wheel 23 turned over, i.e. cable 24 drives density sensing
The distance that device 25 rises or falls, and then realize the position of accurate control density sensor 25.
Such measurement method relative to by measurement rotary drum 22 rotate circle number come control the position of density sensor 24 come
It says, avoids the periphery winding multi-turn cable 24 due to rotary drum 22 that the length difference bring of each astragal cable 24 is caused to calculate error,
So that the control precision for the distance that cable 24 drives density sensor 25 to rise or fall is higher.In addition, guide wheel 23 is set to rotary drum
Between 22 and density sensor 25, the setting of the guide wheel 23 advantageously ensures that density sensor 25 during raising and lowering
Stability.
The sectional area of oil storage tank 3 is it is known that measure 4 height of liquid level of oil plant, 4 height of liquid level before and after disengaging is oily by liquidometer
Variation determine after, by calculate can know disengaging oil plant volume, the oil storage tank 3 can be calculated in conjunction with the density of oil plant
Disengaging oil mass.The density of the oil plant within the scope of 4 height change of liquid level, i.e. oil measured by densitometer 2 are detected by densitometer 2
Expect that density is the oil density for actually passing in and out the oil storage tank 3, can avoid as caused by the density difference of the oil plant of different depth
Error is calculated, and then guarantees the accuracy that disengaging oil mass calculates.It can ensure that fair, just in transaction.
When densitometer 2 through this embodiment measures oil density, density sensor 25 can be adjusted to any institute
Need position, that is to say, that the densitometer 2 can measure the oil density at any liquid level, also, density sensor 25 is put into
During being measured in oil plant with the density to oil plant, without human intervention, high degree of automation can effectively improve detection
Efficiency simultaneously uses manpower and material resources sparingly, while detecting oil density by density sensor 25, for the mode of human metering,
It can avoid influencing the accuracy of testing result due to manual operation error.
2 amount device of liquid level densitometer in the present embodiment further includes controller, the controller respectively by with liquidometer, close
Degree sensor 25 is connected with 21 signal of driving portion, and liquidometer is by its 4 high transmission of liquid level detected to controller, density sensing
Its oil density detected is transmitted to controller by device 25, and controller is according to received 4 height of liquid level of its institute and density information
Calculate oil pump capacity.Meanwhile the controller can also make rising or falling for density sensor 25 by controlling driving portion 21, specifically
, which can highly control the position of density sensor 25 according to the liquid level 4 that liquid level measures, high degree of automation, can
Good operability.
Wherein, rotation angle, controller and the liquidometer, density sensor 25 and drive of guide wheel 23 are detected by magnetic coder
Dynamic 21 signal of portion connects and receives 4 height of liquid level and oil density information, controller and highly controls density sensor according to liquid level 4
25 position is it will be understood by those skilled in the art that be the well known prior art, to save length, herein no longer to magnetic coder
Setting position and detection method and controller specific connection and control strategy repeated.
In addition, the density sensor 25 can also follow automatically liquid level 4 to rise or fall, at this point, density in the present embodiment
Sensor 25 is connect with 21 signal of driving portion, and driving portion 21 is enabled to drive rotary drum according to the adjustable height of density sensor 25
22 rotations, so that cable 24 keeps straight condition.Wherein, density sensor 25 is connect with 21 signal of driving portion to art technology
The prior art is also known for personnel, to save length, details are not described herein.
Real-time measurement can also be carried out with the temperature to oil plant by setting temperature sensor, which can set
The lower end of cable 24 in densitometer 2 can also be set to the lower end of liquidometer, herein with no restrictions.
In the present embodiment, density sensor 25 can realize the measurement of density by micro- vibration cylinder technology, to improve detection knot
The accuracy of fruit.
In the above-described embodiments, liquid level is calculated as servo liquidometer 11, radar level gauge 12 or magnetostriction type liquidometer 13,
That is, the liquidometer in the present embodiment can be selected it is any in above-mentioned three kinds of liquidometers.
By taking servo liquidometer 11 as an example, as shown in Fig. 2, 2 amount instrument of storage tank densitometer and servo liquidometer 11 are matched when disengaging oil
Coordination operation is closed, servo liquidometer 11 is accurately positioned the position of oil plant liquid level 4, exports corresponding level parameter.Liquid when disengaging oil
Face 4 can float up and down, and servo liquidometer 11 has the function of that liquid level 4 follows, float 14 can with liquid level 4 rising together or
Decline, therefore the level parameter that servo liquidometer 11 exports is real-time.Densitometer 2 acts on simultaneously in the process, servo-fluid
While 11 one level parameter of output of position meter, densitometer 2 will export the corresponding density value of a current level, and synthesis is set
The standby other parameters provided complete the metering work during disengaging oil, realize the accurate, quick and efficient of oil product transaction.
The principle of radar level gauge 12 (as shown in Figure 3) and magnetostriction type liquidometer 13 (as shown in Figure 4) is watched with above-mentioned
The principle for taking liquidometer 11 is similar, and to save length, details are not described herein.
In the above-described embodiments, driving portion 21 includes motor 211, interior magnetic coupling 213 and is sheathed on the outside of interior magnetic coupling 213
Outer magnetic coupling 212, wherein in outer magnetic coupling 212 and interior magnetic coupling 213, one and motor 211 are sequentially connected, another one with
Rotary drum 22 rotates synchronously, that is to say, that is realized and is passed by interior magnetic coupling 213 and outer magnetic coupling 212 between motor 211 and rotary drum 22
Dynamic connection, such setting can be achieved explosion-proof purpose, improve safety.Specifically, as shown in Figure 1, motor 211 and outer magnetic coupling
212 transmission connections, interior magnetic coupling 213 are rotated synchronously with rotary drum 22, naturally it is also possible to be that motor 211 and interior magnetic coupling 213 are driven
Connection, rotary drum 22 and outer magnetic coupling 212 rotate synchronously.
In the above-described embodiments, motor 211 is servo motor, and motor 211 and outer magnetic coupling 212 or interior magnetic coupling
It is additionally provided with retarder 214 between 213, is easy to implement and is precisely controlled.
In the above-described embodiments, as in Figure 2-4, liquidometer and densitometer 2 are fixedly arranged on to the tank deck of oil storage tank 3 respectively
31.Specifically, tank deck 31 is equipped with through-hole and flange, liquidometer and densitometer 2 are fixed on tank deck 31, liquidometer by flanged joint
Float 14 and the density sensor 25 of densitometer 2 be each passed through at through-hole to oil plant and measure.
In the above-described embodiments, rotary drum 22 is additionally provided with wire casing 221 along its periphery, and cable 24 is wound in along the wire casing 221 to be turned
The periphery of drum 22, the setting of wire casing 221 avoid that the slippage of cable 24 occurs convenient for being defined the position of cable 24.
Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of oil plant liquid level density measurement device characterized by comprising
Liquidometer, for measuring liquid level (4) height of oil plant；
Densitometer (2), including driving portion (21), rotary drum (22), guide wheel (23), density sensor (25), cable (24) and magnetic are compiled
Code device, the driving portion (21) can drive the rotary drum (22) to rotate, and the cable (24) is around in the outer of the rotary drum (22)
Week, and the lower end of the cable (24) connect around the guide wheel (23) and with the density sensor (25), the rotary drum
(22) it is driven with the guide wheel (23) by the cable (24), the magnetic coder is used to detect the rotation of the guide wheel (23)
Angle.
2. oil plant liquid level density measurement device according to claim 1, which is characterized in that the liquid level is calculated as servo liquid
Count (11), radar level gauge (12) or magnetostriction type liquidometer (13).
3. oil plant liquid level density measurement device according to claim 1 or 2, which is characterized in that driving portion (21) packet
Include motor (211), interior magnetic coupling (213) and the outer magnetic coupling (212) being sheathed on the outside of the interior magnetic coupling (213)；
In the interior magnetic coupling (213) and the outer magnetic coupling (212), one and the motor (211) are sequentially connected, another one
It is rotated synchronously with the rotary drum (22).
4. oil plant liquid level density measurement device according to claim 3, which is characterized in that the motor (211) is servo
Motor, and retarder is additionally provided between the motor (211) and the outer magnetic coupling (212) or the interior magnetic coupling (213)
(214)。
5. oil plant liquid level density measurement device according to claim 1 or 2, which is characterized in that the liquidometer and described
Densitometer (2) is fixedly arranged on the tank deck (31) of oil storage tank (3) respectively.
6. oil plant liquid level density measurement device according to claim 1 or 2, which is characterized in that the rotary drum (22) is along it
Periphery is additionally provided with wire casing (221), and the cable (24) is around in the wire casing (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820957387.3U CN208206230U (en) | 2018-06-20 | 2018-06-20 | A kind of oil plant liquid level density measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820957387.3U CN208206230U (en) | 2018-06-20 | 2018-06-20 | A kind of oil plant liquid level density measurement device |
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| CN208206230U true CN208206230U (en) | 2018-12-07 |
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| CN201820957387.3U Active CN208206230U (en) | 2018-06-20 | 2018-06-20 | A kind of oil plant liquid level density measurement device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110209079A (en) * | 2019-05-23 | 2019-09-06 | 北京瑞赛长城航空测控技术有限公司 | Precise positioning density measuring equipment |
| CN111115042A (en) * | 2018-11-01 | 2020-05-08 | 北京世通科创技术有限公司 | Oil weight measuring device of explosion-proof servo oil tank |
| CN111595366A (en) * | 2020-05-14 | 2020-08-28 | 山东清沂山石化科技有限公司 | Oil information automatic display equipment |
-
2018
- 2018-06-20 CN CN201820957387.3U patent/CN208206230U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115042A (en) * | 2018-11-01 | 2020-05-08 | 北京世通科创技术有限公司 | Oil weight measuring device of explosion-proof servo oil tank |
| CN110209079A (en) * | 2019-05-23 | 2019-09-06 | 北京瑞赛长城航空测控技术有限公司 | Precise positioning density measuring equipment |
| CN111595366A (en) * | 2020-05-14 | 2020-08-28 | 山东清沂山石化科技有限公司 | Oil information automatic display equipment |
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