CN208705194U - Oil-water mixture density and pure oil flow measuring device - Google Patents
Oil-water mixture density and pure oil flow measuring device Download PDFInfo
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- CN208705194U CN208705194U CN201821117538.0U CN201821117538U CN208705194U CN 208705194 U CN208705194 U CN 208705194U CN 201821117538 U CN201821117538 U CN 201821117538U CN 208705194 U CN208705194 U CN 208705194U
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Abstract
The utility model discloses a kind of oil-water mixture density and pure oil flow measuring device, comprising: pipe-line cell, pipe-line cell include sequentially connected first level pipeline and the first vertical pipeline；Differential pressure measurement unit, differential pressure measurement unit includes the first difference gauge and the second difference gauge, first difference gauge is connected by first level pressure port and the second horizontal pressure port with first level pipeline, and the second difference gauge is connected by the first vertical pressure port and the second vertical pressure port with the first vertical pipeline；Mixed liquor density is calculated according to the first pressure difference and the second pressure difference that measure, calculates pure oil flow amount further according to mixed liquor density；Solves the problem of oil-water ratio is calculated by measurement mixed liquor density in the influence and pipeline of measured medium variable density and frictional force to density measure accuracy.
Description
Technical field
The utility model belongs to field of measuring technique, more particularly, to a kind of oil-water mixture density and pure oil flow amount
Measuring device.
Background technique
In existing production of hydrocarbons, need to measure the density and each group shunt volume of oil-water mixture, measured value
Have as the important parameter in production technology, therefore to the measurement of pure oil flow amount in the density measure and mixed liquor of oil-water mixture
Extensive technical need.But in practical production of hydrocarbons, since the continuous variation of oil water mixing proportional in oil-water mixture is led
It causes the density of oil-water mixture constantly to change, keeps density measurement inaccurate；Constantly change due to the density of oil-water mixture and
Frictional force between fluid and tube wall, the numerical value for measuring traditional differential pressure flowmeter and actual value generate deviation.To sum up institute
It states, although having extensive technical need, needle to the measurement of pure oil flow amount in the density measure and mixed liquor of oil-water mixture
To the device and method of oil-water mixture density and pure oil flow measurement still in the stage to be developed.
Therefore, it is desirable to develop a kind of device that can quick and precisely measure oil-water mixture density and pure oil flow magnitude.
Utility model content
The purpose of this utility model is the influence for solving measured medium variable density and frictional force to density measure accuracy,
And by measuring the problem of mixed liquor density calculates oil-water ratio in pipeline.
To achieve the goals above, the utility model provides a kind of oil-water mixture density and pure oil flow measuring device,
Include:
Pipe-line cell, the pipe-line cell include sequentially connected first level pipeline and the first vertical pipeline；
Differential pressure measurement unit, the differential pressure measurement unit include the first difference gauge and the second difference gauge, first differential pressure
Meter is connected by first level pressure port and the second horizontal pressure port with the first level pipeline, and second difference gauge is logical
It crosses the first vertical pressure port and the second vertical pressure port is connected with first vertical pipeline；
Flowmeter, the flowmeter are used to measure the flow by the pipe-line cell.
Preferably, the distance between the first level pressure port and the second horizontal pressure port are equal to described first and take vertically
Press the distance between hole and the second vertical pressure port.
It preferably, further include the second horizontal pipe, the second vertical pipeline and third horizontal pipe, the first level pipe
Road, the first vertical pipeline, the second horizontal pipe, the second vertical pipeline, third horizontal pipe are sequentially connected.
Preferably, the flowmeter is set on the third horizontal pipe.
It preferably, further include temperature-measuring element, the temperature-measuring element is erected set on the first level pipeline, first
In straight pipeline, the second horizontal pipe, the second vertical pipeline or third horizontal pipe.
Preferably, the inner surface finish of the first level pipeline and the first vertical pipeline reaches hydraulically smooth.
Preferably, first vertical pipeline and the second vertical pipeline equal length.
Preferably, further includes:
Computing unit, the computing unit are connected to first difference gauge, the second difference gauge, flowmeter.
The utility model has the beneficial effects that:
1, first level pipeline and the second vertical pipeline are set in pipe-line cell, and vertical in first level pipeline and first
The first difference gauge and the second difference gauge are respectively set on pipeline, measuring pressure difference using the first difference gauge and the second difference gauge can count
The density for calculating mixed liquor, when solving using gravity differential pressure method measurement density, since the frictional force between fluid and tube wall generates
Differential pressure the problem of density measure accuracy is compensated, while solving since measured medium variable density is to differential pressure flowmeter
The influence of measurement accuracy.
2, temperature-measuring element is set, obtains the variation of mixed liquor density under different temperatures environment, it is no longer necessary to pass through temperature
It spends coefficient and corrects mixed liquor density, make to calculate simpler.
3, inner surface of pipeline reaches hydraulically smooth, then the frictional resistance between mixed liquor and inner wall of the pipe is not by inner wall of the pipe
The influence of roughness, it is only related with Reynolds number, keep the pressure difference generated by gravity being calculated more acurrate.
Other features and advantages of the utility model will then part of the detailed description can be specified.
Detailed description of the invention
The utility model illustrative embodiments are described in more detail in conjunction with the accompanying drawings, the utility model it is upper
It states and other purposes, feature and advantage will be apparent, wherein in the utility model illustrative embodiments, phase
Same reference label typically represents same parts.
Fig. 1 shows the oil-water mixture density and pure oil flow measuring device of one embodiment according to the present utility model
Schematic diagram.
Description of symbols
1, the first difference gauge；2, the second difference gauge；3, flowmeter；4, temperature-measuring element；5, computing unit；6, the first water
Flat pipeline；7, the first vertical pipeline；8, the second horizontal pipe；9, the second vertical pipeline；10, third horizontal pipe；
Specific embodiment
Preferred embodiments of the present invention are described in more detail below.Although the following describe the utility model
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the utility model without the implementation that should be illustrated here
Mode is limited.On the contrary, thesing embodiments are provided so that the utility model is more thorough and complete, and can be by this
The range of utility model is completely communicated to those skilled in the art.
A kind of oil-water mixture density according to the present utility model and pure oil flow measuring device, comprising:
Pipe-line cell, pipe-line cell include sequentially connected first level pipeline and the first vertical pipeline；
Differential pressure measurement unit, differential pressure measurement unit include the first difference gauge and the second difference gauge, and the first difference gauge passes through the
One horizontal pressure port and the second horizontal pressure port are connected with first level pipeline, and the second difference gauge passes through the first vertical pressure port
It is connected with the second vertical pressure port with the first vertical pipeline；
Flowmeter, flowmeter are used to measure the flow by pipe-line cell.
Specifically, first level pipeline and the second vertical pipeline be set in pipe-line cell, and in first level pipeline and the
The first difference gauge and the second difference gauge are respectively set on one vertical pipeline, then the pressure difference that the first difference gauge measures is frictional force effect
It generates, it is that frictional force and gravity collective effect generate that the second difference gauge, which measures pressure difference, and flowmeter is arranged in pipe-line cell and uses
In the flow of measurement oil-water mixture.The close of mixed liquor can be calculated by measuring pressure difference using the first difference gauge and the second difference gauge
Degree, can calculate pure oil flow amount further according to mixed liquor density, when solving using gravity differential pressure method measurement density, due to fluid
The problem of differential pressure that frictional force between tube wall generates compensates density measure accuracy, while solving due to measured medium
Influence of the variable density to differential pressure flowmeter measurement accuracy.
Preferably, it is vertical to be equal to described first for the distance between first level pressure port and the second horizontal pressure port
The distance between pressure port and the second vertical pressure port.
Specifically, the distance between pressure port of difference gauge is equal, by rubbing on first level pipeline and the first vertical pipeline
The pressure difference for wiping power generation is equal, then can offset fluid and tube wall in the first vertical pipeline according to the pressure difference that the first difference gauge measures
Between influence of the frictional force to pressure difference, obtain the pressure difference generated by gravity.
It preferably, further include the second horizontal pipe, the second vertical pipeline and third horizontal pipe, first water
Flat pipeline, the first vertical pipeline, the second horizontal pipe, the second vertical pipeline, third horizontal pipe are sequentially connected.
Specifically, cause pipeline trend to change due to setting will not be needed because measuring in this way, pipeline will not be made to be laid with road
Diameter complicates.
Preferably, flowmeter is set on the third horizontal pipe.
Preferably, further include temperature-measuring element, the temperature-measuring element be set to the first level pipeline,
In first vertical pipeline, the second horizontal pipe, the second vertical pipeline or third horizontal pipe.
Specifically, setting temperature-measuring element can measure the variation of mixed liquor density under different temperatures environment, no longer need
Mixed liquor density is corrected by temperature coefficient, calculated easier.
Preferably, the inner surface finish of first level pipeline and the first vertical pipeline reaches hydraulically smooth.
Specifically, the inner surface of pipeline reaches hydraulically smooth, then the frictional resistance between mixed liquor and inner wall of the pipe not by
The influence of inner wall of the pipe roughness, it is only related with Reynolds number, keep the pressure difference generated by gravity being calculated more acurrate, in turn
Keep the density value of oil-water mixture more acurrate.
Preferably, the first vertical pipeline and the second vertical pipeline equal length.
Preferably, oil-water mixture density and pure oil flow measuring device further include:
Computing unit, computing unit are connected to the first difference gauge, the second difference gauge, flowmeter.
Specifically, the second pressure that the first pressure difference and the second difference gauge that computing unit is measured according to the first difference gauge measure
Difference calculates oil-water mixture density, and the flow rate calculation pure oil flow amount obtained according to oil-water mixture density and flow measurement:
Oil-water mixture density p H is calculated according to formula (1):
ρ H=(Δ P2- Δ P1)/gh (1)
Wherein, ρ H indicates oil-water mixture density, and Δ P2 indicates that the second pressure difference that the second difference gauge measures, Δ P1 indicate
The first pressure difference that first difference gauge measures, g indicate that acceleration of gravity, h indicate first level pressure port and the second horizontal pressure
The distance between hole or the distance between the first vertical pressure port and the second vertical pressure port.
Specifically, oil-water mixture flows through the first difference gauge on first level pipeline, due to the effect of viscous friction, meeting
A differential pressure Δ P1 is generated, this signal is sent into computing unit；
Then, oil-water mixture flows through the second difference gauge on the first vertical pipeline, in gravity and frictional force synthesis
Lower generation differential pressure Δ P2, the signal are admitted to computing unit, and Δ P2=ρ gh+ Δ P3, Δ P3 are that mixed liquor flows through vertical pipeline
When friction generate pressure difference；
Reach hydraulically smooth since first level pipeline is same as the inner surface finish of the first vertical pipeline and first is poor
Pressure meter and the pressure port of the second difference gauge are equidistant, then Δ P3=Δ P1, so Δ P2=ρ H*gh+ Δ P1, then ρ H=(Δ
P2-ΔP1)/gh。
Pure oil flow amount QY is calculated according to formula (2):
QY=Q-Q* (ρ H- ρ Y)/(ρ W- ρ Y) (2)
Wherein, QY indicates pure oil flow amount, indicates that the flow that flow measurement obtains, ρ W indicate the density of water, ρ Y indicates the close of oil
Degree.
Specifically, mixed liquor flows through flowmeter, measures the flow Q of mixed liquor in pipeline；
Due to VH=VY+VW, mH=mY+mW,
Wherein, VH is oil-water mixture volume, and VY is pure oil volume, and VW is pure water volume, and mH is oil-water mixture matter
Amount, mY are pure oil quality, and mW is pure water quality.
And VH=mH/ ρ H, VY=mY/ ρ Y, VW=mW/ ρ W,
Then volumetric water content VW/VH is (mW/ ρ W)/(mH/ ρ H)=mW ρ H/mH ρ W
Again by mH/ ρ H=mY/ ρ Y+mW/ ρ W,
MH/ ρ H=(mH-mW)/ρ Y+mW/ ρ W, obtains
VW/VH=mW ρ H/mH ρ W=(ρ H- ρ Y)/(ρ W- ρ Y)
Then pure oil flow amount QY=Q-Q* (ρ H- ρ Y)/(ρ W- ρ Y).
Embodiment
As shown in Figure 1, the oil-water mixture density and pure oil flow measuring device include: sequentially connected first level pipe
Road 6, the first vertical pipeline 7, the second horizontal pipe 8, the second vertical pipeline 9 and third horizontal pipe 10, the first vertical pipeline 7 with
Second vertical pipeline, 9 equal length；First difference gauge 1 passes through first level pressure port and the second horizontal pressure port and first level
Pipeline 6 is connected, and the second difference gauge 2 is connected by the first vertical pressure port and the second vertical pressure port with the first vertical pipeline 7
It connects, the distance between first level pressure port and the second horizontal pressure port are equal to the first vertical pressure port and the second vertical pressure port
The distance between, flowmeter 3 is set on third horizontal pipe 10, and temperature-measuring element 4 is set in the second vertical pipeline 9.
Wherein, the inner surface finish of first level pipeline 6 and the first vertical pipeline 7 reaches hydraulically smooth.
It wherein, further include computing unit, computing unit is connected to the first difference gauge, the second difference gauge, flowmeter
The second pressure difference meter that the first pressure difference and the second difference gauge that computing unit is measured according to the first difference gauge measure
Calculate oil-water mixture density, and the flow rate calculation pure oil flow amount obtained according to oil-water mixture density and flow measurement.
Oil-water mixture density p H is calculated according to formula (1):
ρ H=(Δ P2- Δ P1)/gh (1)
Wherein, ρ H indicates oil-water mixture density, and Δ P2 indicates that the second pressure difference that the second difference gauge measures, Δ P1 indicate
The first pressure difference that first difference gauge measures, g indicate that acceleration of gravity, h indicate first level pressure port and the second horizontal pressure
The distance between hole or the distance between the first vertical pressure port and the second vertical pressure port.
Pure oil flow amount QY is calculated according to formula (2):
QY=Q-Q* (ρ H- ρ Y)/(ρ W- ρ Y) (2)
Wherein, QY indicates pure oil flow amount, and Q indicates that the flow that flow measurement obtains, ρ W indicate the density of water, and ρ Y indicates the close of oil
Degree.
Each embodiment of the utility model is described above, above description is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes are obvious for those skilled in the art.
Claims (8)
1. a kind of oil-water mixture density and pure oil flow measuring device characterized by comprising
Pipe-line cell, the pipe-line cell include sequentially connected first level pipeline and the first vertical pipeline；
Differential pressure measurement unit, the differential pressure measurement unit include the first difference gauge and the second difference gauge, and first difference gauge is logical
It crosses first level pressure port and the second horizontal pressure port is connected with the first level pipeline, second difference gauge passes through the
One vertical pressure port and the second vertical pressure port are connected with first vertical pipeline；
Flowmeter, the flowmeter are used to measure the flow by the pipe-line cell.
2. oil-water mixture density according to claim 1 and pure oil flow measuring device, which is characterized in that described first
The distance between horizontal pressure port and the second horizontal pressure port be equal to the described first vertical pressure port and the second vertical pressure port it
Between distance.
3. oil-water mixture density according to claim 1 and pure oil flow measuring device, which is characterized in that further include
Two horizontal pipes, the second vertical pipeline and third horizontal pipe, the first level pipeline, the first vertical pipeline, the second level
Pipeline, the second vertical pipeline, third horizontal pipe are sequentially connected.
4. oil-water mixture density according to claim 3 and pure oil flow measuring device, which is characterized in that the flow
Meter is set on the third horizontal pipe.
5. oil-water mixture density according to claim 3 and pure oil flow measuring device, which is characterized in that further include temperature
Measuring cell is spent, the temperature-measuring element is set to the first level pipeline, the first vertical pipeline, the second horizontal pipe, the
In two vertical pipelines or third horizontal pipe.
6. oil-water mixture density according to claim 1 and pure oil flow measuring device, which is characterized in that described first
The inner surface finish of horizontal pipe and the first vertical pipeline reaches hydraulically smooth.
7. oil-water mixture density according to claim 3 and pure oil flow measuring device, which is characterized in that described first
Vertical pipeline and the second vertical pipeline equal length.
8. oil-water mixture density according to claim 2 and pure oil flow measuring device, which is characterized in that further include:
Computing unit, the computing unit are connected to first difference gauge, the second difference gauge, flowmeter.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760569A (en) * | 2018-07-13 | 2018-11-06 | 孙玘凡 | Oil-water mixture density and pure oil flow measuring device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760569A (en) * | 2018-07-13 | 2018-11-06 | 孙玘凡 | Oil-water mixture density and pure oil flow measuring device and method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210601 Address after: Room 710, 18-27, 7th floor, building 18, anhuali District 5, Chaoyang District, Beijing 100020 Patentee after: Beijing Shi bin de science and Technology Development Co.,Ltd. Patentee after: Sun Qifan Address before: 100020 No.10, gate 4, 5th floor, 1st District, Longtou Xili, Chaoyang District, Beijing Patentee before: Sun Qifan |