CN106769677B - The online viscosity detecting device of high temperature and pressure grease fluid-mixing and method - Google Patents
The online viscosity detecting device of high temperature and pressure grease fluid-mixing and method Download PDFInfo
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- CN106769677B CN106769677B CN201710021310.5A CN201710021310A CN106769677B CN 106769677 B CN106769677 B CN 106769677B CN 201710021310 A CN201710021310 A CN 201710021310A CN 106769677 B CN106769677 B CN 106769677B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/0046—In situ measurement during mixing process
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Abstract
The present invention provides a kind of online viscosity detecting device of high temperature and pressure grease fluid-mixing and method, which includes: circulation mechanism, temperature control mechanism, data acquisition and DPA data processing activity.All kinds of mature and high accuracy instrument are installed on the online viscosity detecting device of high temperature and pressure grease fluid-mixing, can temperature, pressure to fluid-mixing in vertical pipe and pressure difference carry out real-time continuous detection, by computer real-time acquisition data, and the model by being set in advance in computer calculates the actual viscosity of fluid.The pipe flow viscosity of fluid-mixing under the online viscosity detecting device energy real-time measurement high-temperature and high-pressure conditions of the high temperature and pressure grease fluid-mixing, is suitable for single-phase, heterogeneous fluid, and equipment investment is few, it is at low cost, detection method is simple and easy to do, accurate reliable, has extensive engineering application value and learning value.
Description
Technical field
The present invention relates to physical properties of fluids detection technique fields, and particularly a kind of high temperature and pressure grease fluid-mixing glues online
Spend detection device or a kind of online method for detecting viscosity of fluid.
Background technique
The flowing of water-oil phase mixture is widely used in petroleum, chemical industry and other related industries, especially in petroleum work
In industry, the flowing of water-oil phase mixture is fairly common, and is even more important to the research of its flowing law.
Viscosity be measure liquid inhibit fluid ability an important physical parameter, be liquid important physical property and
One of technical indicator.The characteristic of liquid often with other characteristics of product for example color, density, stability, solid component content and
The change of molecular weight has relationship, and detect these characteristics most convenient and sensitive method be exactly on-line checking liquid viscosity.
In physical chemistry, the scientific domains such as hydrodynamics, viscosity measurement plays understanding fluid properties and research flow regime important
Effect.With the continuous improvement of national economy, the Accurate Determining of viscosity in many industrial departments and field of scientific study all
It is of great significance, the requirement of viscosity measurement becomes increasingly conspicuous.In Practical Project and industrial production, it is often necessary to on-line checking fluid
Viscosity, to guarantee optimal process operation environment and product quality, to improve productivity effect, especially petrochemical industry,
In the industries such as medicine, metallurgy and food.For example: in transmission process, viscosity of crude is excessive not only to be influenced former main pipeline road length
Transfer efficiency, and it is likely to result in the solidifying pipe of crude oil, accident occurs.By the liquid viscosity during on-line measurement, can obtain
To the data of fluid stream behavior, for predicting the technology controlling and process of Product Process process, transporting and product are when in use
Operability has important guiding value.With the raising required product quality control, traditional laboratory measurement or lag
Inspection have been unable to meet requirement.
The viscosity of petroleum is the measurement of the frictional resistance generated when certain a part is flowed relative to another part inside petroleum.
It has a major impact oil-gas migration, aggregation and oil-gas field development etc..Therefore the measurement of oil viscosity has great importance.
Currently, plain edition viscosimeter mostly uses greatly offline Viscosity Measurement Methods, such as vibratory drilling method, falling ball method, rotary process, testing liquid temperature
Fine measurement is needed with viscosity, rule is that the viscosity of liquid can be increased with the reduction of temperature, and off-line process is more surveyed
Measure the static property of viscosity versus temperature of fluid；On-line viscosity measurement method is mainly capillary tube method, but the universal non-refractory high pressure of capillary,
Fluid kinematic viscosity under normal temperature and pressure can only be measured, inaccuracy, error are described for fluid flow characteristics under high temperature and high pressure environment
To inevitably occur, industrial development is caused to hinder.
Summary of the invention
In order to solve the problems, such as that the present invention provides one in the prior art without the online viscosity detecting device of ideal fluid
The online viscosity detecting device of kind high temperature and pressure grease fluid-mixing and method, the online viscosity inspection of the high temperature and pressure grease fluid-mixing
Device and method is surveyed to have filled up online to the blank of viscosity real-time measurement apparatus under water-oil phase fluid-mixing high temperature and pressure, it can be real
When measurement water-oil phase mixture difference ratio under pipe flow viscosity, study different fluid dynamic mixed process medium viscosity variation
Rule can study the changing rule of water-oil phase fluid-mixing viscosity with temperature, pressure, and research range is wide, and measurement temperature is reachable
220 DEG C, pressure is measured up to 70MPa.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of online viscosity detecting device of high temperature and pressure grease fluid-mixing, comprising:
Circulation mechanism contains the first high temperature and high pressure containers, the second high temperature and high pressure containers, the first injection pump, high-pressure reversing valve
And main pipeline, the first high temperature and high pressure containers, the second high temperature and high pressure containers and main pipeline are connect with high-pressure reversing valve, the first injection
Liquid in first high temperature and high pressure containers can be injected into main pipeline by pump by high-pressure reversing valve, and the first injection pump can incite somebody to action
Liquid in second high temperature and high pressure containers is injected into main pipeline by high-pressure reversing valve, the first injection pump and high-pressure reversing valve energy
Enough make liquid in main pipeline internal circulation flow；
Temperature control mechanism can control the temperature of fluid in main pipeline；
Data acquisition and DPA data processing activity, containing sensor and control unit, the sensor can measure main pipeline
The physical parameter of interior fluid is simultaneously sent to the control unit, which can be handled the physical parameter.
A kind of online method for detecting viscosity of fluid, the online method for detecting viscosity of the fluid use above-mentioned high temperature high pressure oil
Water fluid-mixing online viscosity detecting device only contains single oily phase, the online method for detecting viscosity packet of the fluid in main pipeline
Include following steps:
Step 1a, by the physical parameter of fluid in the sensor measurement main pipeline and it is sent to the control unit；
Step 2a, the control unit calculates the fluid viscosity in main pipeline according to formula one and the physical parameter；
The formula one are as follows:
In the formula one, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, and unit is
m；V is flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is measured
The length of pipeline section, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is gravity acceleration
Degree, g 9.81N/kg；A, b, c and d are correction factor, and a 0.00444, b are -108.35, c 160.39, and d is -0.24.
The beneficial effects of the present invention are:
1, the online viscosity detecting device of high temperature high pressure grease fluid-mixing of the present invention can be used for real in experiment indoor simulation
Border industrial process conditions.Indoors simulate different temperatures, different pressures fluid flow environment, online viscosity detecting device it is entire
System designs the requirement for meeting high-temperature-resistant high-pressure-resistant.The design measurement range is wide, can measure single-phase flow, grease multiphase flow and stream
The fluid kinematic viscosity of additive is added during dynamic.
2, the online viscosity detecting device of high temperature high pressure grease fluid-mixing of the present invention uses physical analogy and mathematical model
The mode combined carries out on-site signal detection using the high conventional instrument of technology maturation, measuring accuracy, and metrical information is accurate
Reliably, lag time is small；The data collection system of setting is furnished with corresponding analysis model, can in real-time detecting system fluid property
The variation of matter, flow resistance and fluid viscosity, accuracy is high, fully meets the needs of oil extraction, equipment investment is few, cost
It is low, it is convenient for installation and maintenance.
3, the online viscosity detecting device of high temperature high pressure grease fluid-mixing of the present invention can be used for measuring water-oil phase incessantly
Fluid-mixing actually manages defeated kinematic viscosity, practical to production to provide technological guidance and theories integration, it may also be used for analyzer tube
The phase-state change of water-oil phase fluid and its flowing frictional resistance, also have the disciplinary study of multiphase fluid mechanics important in road
Contributed value.This experimental provision and measurement method are expanded space with very big, in petroleum, chemical industry and other related fieldss
It can apply.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is the overall structure diagram of the online viscosity detecting device of high temperature and pressure grease fluid-mixing of the present invention.
Fig. 2 is the structural schematic diagram of injection hole.
Fig. 3 is the schematic diagram of main pipeline heating method.
Fig. 4 is the first state schematic diagram of the first threeway and the second threeway.
Fig. 5 is the second status diagram of the first threeway and the second threeway.
Fig. 6 is the structural schematic diagram of high-pressure reversing valve.
11, the first high temperature and high pressure containers；12, the second high temperature and high pressure containers；13, the first injection pump；14, high-pressure reversing valve；
15, main pipeline；16, third high temperature high-pressure bottle；17, the second injection pump；
21, electrical heating controller；22, electric heating cover；
31, first pressure sensor；32, second pressure sensor；33, differential pressure pickup；34, temperature sensor；
41, the first threeway；42, the second threeway；.
51, the first control valve；52, the second control valve；53, third control valve；54, the 4th control valve；55, the 5th control
Valve；56, counterbalance valve；
61, the first valve；62, the second valve；63, third valve；64, the 4th valve；65, the 5th valve；66, the 6th valve
Door；67, the 7th valve；68, the 8th valve；
151, test section is tested；152, the first assistant experiment section；153, the second assistant experiment section；154, interface is vacuumized；
155, sample connection.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of online viscosity detecting device of high temperature and pressure grease fluid-mixing, comprising:
Circulation mechanism contains the first high temperature and high pressure containers 11, the second high temperature and high pressure containers 12, the first injection pump 13, high pressure
Reversal valve 14 and main pipeline 15, circulation mechanism constitute closed loop, the first high temperature and high pressure containers 11, the second high temperature and high pressure containers 12
It is connect with high-pressure reversing valve 14 with 15 three of main pipeline, the first injection pump 13 can be by the liquid in the first high temperature and high pressure containers 11
Body is injected into main pipeline 15 by high-pressure reversing valve 14, and the first injection pump 13 can be by the liquid in the second high temperature and high pressure containers 12
Body is injected into main pipeline 15 by high-pressure reversing valve 14, and the first injection pump 13 and the cooperation of high-pressure reversing valve 14 can make liquid exist
15 internal circulation flow of main pipeline is ceaselessly flowed as the liquid in main pipeline 15 can recycle clockwise or counterclockwise；
Temperature control mechanism can control the temperature of fluid in main pipeline 15；
Data acquisition and DPA data processing activity, containing sensor and control unit, the sensor can measure main pipeline
The physical parameter of fluid and it is sent to the control unit in 15, which can be handled the physical parameter, such as Fig. 1
It is shown.
In the present embodiment, high-pressure reversing valve 14 contains there are four high-pressure air operated valve, and four high-pressure air operated valves are respectively
First high-pressure air operated valve 141, the second high-pressure air operated valve 142, third high-pressure air operated valve 143 and the 4th high-pressure air operated valve 144, first
The arrival end of the arrival end of high temperature and high pressure containers 11 and the second high temperature and high pressure containers 12 is connect with the first injection pump 13, and first is high
The outlet end of warm high-pressure bottle 11 connects simultaneously with one end of the first high-pressure air operated valve 141 and one end of third high-pressure air operated valve 143
It connects, the one of one end and the 4th high-pressure air operated valve 144 of the outlet end of the second high temperature and high pressure containers 12 and the second high-pressure air operated valve 142
End while connecting, the arrival end of main pipeline 15 and the other end of third high-pressure air operated valve 143 and the 4th high-pressure air operated valve 144 it is another
One end connects simultaneously, the other end and the second high-pressure air operated valve 142 of the outlet end of main pipeline 15 and the first high-pressure air operated valve 141
The other end connects simultaneously, as shown in Figure 6.Wherein, it is arrival end or described that described one end, which can be the other end described in outlet end,
One end can be that the other end described in arrival end is outlet end.The material of first high temperature and high pressure containers 11 and the second high temperature and high pressure containers 12
Matter is stainless steel, and the rated insulation voltage of the first high temperature and high pressure containers 11 and the second high temperature and high pressure containers 12 is 100MPa, the first note
Entering pump 13 has the function of injecting and adjusting fluid pressure in main pipeline 15.Main pipeline 15 is stainless steel tube, in main pipeline 15
Temperature is measured up to 220 DEG C, measures pressure up to 70MPa.
When liquid is flowed out from the first high temperature and high pressure containers 11, when flowing into the second high temperature and high pressure containers 12, high pressure is changed
It is automatically opened to the second high-pressure air operated valve 142 and third high-pressure air operated valve 143 of valve 14, while 141 He of the first high-pressure air operated valve
4th high-pressure air operated valve 144 is automatically closed；When liquid is flowed out from the second high temperature and high pressure containers 12, to the first high temperature and high pressure containers
When flowing into 11, the first high-pressure air operated valve 141 of high-pressure reversing valve 14 and the 4th high-pressure air operated valve 144 are automatically opened, while the
Two high-pressure air operated valves 142 and third high-pressure air operated valve 143 are automatically closed, to realize that liquid remains suitable in main pipeline 15
Clockwise flowing.Implementation of the liquid in 15 internal circulation flow of main pipeline are as follows: liquid is in main pipeline 15 along side clockwise
To from the first high temperature and high pressure containers 11 outflow enter the second high temperature and high pressure containers 12 in or liquid in main pipeline 15 along the inverse time
Needle direction enters in the first high temperature and high pressure containers 11 from outflow in the second high temperature and high pressure containers 12.
In the present embodiment, main pipeline 15 is parallel with the first auxiliary reality containing experiment test section 151, experiment test section 151
Section 152 and the second assistant experiment section 153 are tested, the internal diameter of the second assistant experiment section 153 is greater than the interior of the first assistant experiment section 152
Diameter, the internal diameter of the first assistant experiment section 152 are greater than the internal diameter of experiment test section 151, the data acquisition and DPA data processing activity
Including temperature sensor, pressure sensor and the differential pressure pickup being connect with experiment test section 151.Specifically, main pipeline 15 is in U
Shape, experiment test section 151 are straight one section, and by control valve, liquid can be real from the experiment auxiliary of test section 151, first
It tests in section 152 and the second assistant experiment section 153 and is flowed through in any one, two or three.The sensor is first pressure biography
Sensor 31, second pressure sensor 32, differential pressure pickup 33 and temperature sensor 34, as shown in Figure 1.
In the present embodiment, main pipeline 15 is in U-shape, and the arrival end of main pipeline 15 passes through the first threeway 41 and high-pressure reversing valve
The outlet end of 14 first exit end connection, main pipeline 15 is connected by the second threeway 42 and the second outlet end of high-pressure reversing valve 14
It connects, the first threeway 41 and the second threeway 42 contain interface upward and the interface towards horizontal direction, such as Fig. 4 and figure
Shown in 5.The arrival end of main pipeline 15 is connect with the interface of the first threeway 41 upward and the outlet end of main pipeline 15 and second
The interface connection of threeway 42 upward, main pipeline 15 is in upright state at this time, and it is viscous in vertical state can to measure fluid
Degree.Alternatively, the arrival end of main pipeline 15 is connect with the interface of the first threeway 41 towards horizontal direction and the outlet end of main pipeline 15
It is connect with the interface of the second threeway 42 towards horizontal direction, main pipeline 15 is in a horizontal state at this time, can measure fluid in level
Viscosity when state.
In the present embodiment, the temperature control mechanism includes electrical heating controller 21 and electric heating cover 22, electrical heating controller
21 can make electric heating cover 22 generate heat, and electrical heating controller 21 can control the temperature of liquid in main pipeline 15, electric heating cover 22
It is wound in outside main pipeline 15, which further includes high/low temperature insulating box, the
One high temperature and high pressure containers 11, the second high temperature and high pressure containers 12 and high-pressure reversing valve 14 are all set in high/low temperature insulating box, such as Fig. 3
It is shown.
In the present embodiment, main pipeline 15, which is also connected with, vacuumizes interface 154, sample connection 155 and third high temperature high pressure
Container 16, third high temperature high-pressure bottle 16 are connected with for the liquid in third high temperature high-pressure bottle 16 to be injected into main pipeline 15
The second interior injection pump 17, sample connection 155 are equipped with counterbalance valve 56.First high temperature and high pressure containers 11, the second high temperature and pressure are held
Device 12 and third high temperature high-pressure bottle 16 are hydraulic cylinder type structure, and third high temperature high-pressure bottle 16 passes through pipeline and main pipeline 15
The mode of connection is as shown in Figure 2.Oil, water or oil water mixture can be packed into first high temperature and high pressure containers 11, the second high temperature is high
Oil, water or oil water mixture can be packed into pressure vessel 12.
The application method of the online viscosity detecting device of high temperature and pressure grease fluid-mixing is described below.
Embodiment 1
Early-stage preparations:
The water-oil phase fluid-mixing sample of gas-oil ratio needed for preparing in the first high temperature and high pressure containers 11 closes the first control
Valve 51, the second control valve 52, third control valve 53 and the second valve 62 processed, remaining control valve and valve are fully open, pass through pumping
Vacuum interface 154 vacuumizes system.
After the completion of vacuumizing, setting 56 pressure of counterbalance valve is test pressure, opens the first control valve 51 and the second control valve
52, valve the first valve 61, the 5th valve 65, the 6th valve 66, the 7th valve 67, the 8th valve 68 are closed, the first note is passed through
Enter pump 13 and the sample in first high temperature and high pressure containers 11 is squeezed into entire wellbore flow model system, and continue to be pressurized, until whole
The actual production pressure that a system pressure is simulated needed for reaching, opens simultaneously electric heating temperature control device, and simulation needed for setting is practical raw
Temperature under the conditions of production stablizes a period of time, until the temperature sensor in system shows and reaches set temperature.
According to flow velocity size under institute's actual production conditions to be simulated, certain flow rate is arranged to the first injection pump 13, makes oil
Water two-phase mixtures fluid sample does circulating clockwise or counterclockwise along main pipeline 15, and stable circulation after a certain period of time, is read
Reading (i.e. first pressure sensor 31, second pressure sensor 32 and the pressure difference sensing of pressure gap sensor and pressure sensor
The reading of device 33).If fluid viscosity is larger, the pressure difference for flowing through measurement pipeline section is greater than differential pressure pickup range, can close the 4th control
Valve 54 and the 5th control valve 55 5 processed calculate pressure difference by measuring section arrival end and the pressure sensor of outlet end, and pass through number
Current fluid viscosity is calculated automatically from according to processing system.
During fluid circulation, if needing sampling and measuring, pressure can be arranged in counterbalance valve slightly reduce that (reduction amplitude is no more than
0.5MPa), the second valve 62 is opened to be sampled.
During fluid circulation, if you need to change caliber, then third valve 63 and the 4th valve 64 can be closed, open the 5th valve
65, the 6th valve 66 or the 7th valve 67, the 8th valve 68 measure.
Embodiment 2
Grease after measuring addition additive (in the third high temperature high-pressure bottle 16) into fluid in actual production process
When two-phase mixtures fluid viscosity, the second injection pump 17 is opened, is arranged certain flow rate (this flow velocity must be controlled accurately), by additive
Main pipeline 15 is injected by injection hole, mixes additive in main pipeline 15 with stream, observes differential pressure pickup and pressure at any time
The reading of sensor.Under high-temperature and high-pressure conditions, main fluid first can be injected by entire circulator using circulation injection pump and pressure regulating pump
Structure after reaching required pressure, is arranged the heating temperature of electric heating cover 22, runs circulation mechanism, make main fluid in circulating line
Additive in flow process, is betted in setting pressure by the second injection pump 17 and is mixed in main pipeline 15 with main fluid by circulation
It closes, Change of Fluid Viscosity is observed by data acquisition and DPA data processing activity in real time.
Embodiment 3
When measuring to two-phase water-oil phase fluid-mixing (such as oil and water) viscosity, two kinds of fluids are respectively placed in the
In one high temperature and high pressure containers 11 and the second high temperature and high pressure containers 12, the first control valve 51, the second control valve 52 and third control are opened
Valve 53 processed, while starting the first injection pump 13 and the second injection pump 17, pass through the first injection pump 13 of control and the second injection pump 17
Flow velocity, can control two kinds of fluid phase contents in main pipeline, phase content be the first injection pump 13 and the second injection pump 17 stream
Speed ratio can control water-oil phase fluid-mixing overall flow rate, pass through electrical heating controller by the way that the flow velocity of the first injection pump 13 is arranged
The temperature of 21 control whole systems, the first injection pump 13 and the second injection pump 17 can constant-speed operation, so that system pressure is reached measurement
After pressure, the viscosity value of current grease Two-phase mixture fluids body (You Heshui) is read.
Embodiment 4
If being changed to measure vertical level stream fluid viscosity by measurement Particle in Vertical Pipe Flow fluid viscosity, at the threeway of entrance,
The installation direction for measuring straight pipeline is changed to horizontal direction by vertical direction, and the drain of threeway is sealed with silk plug,
The main pipeline 15 in Fig. 1 is changed to horizontality by upright state.Remaining measurement viscosity operating procedure and 1,2,3 phase of embodiment
Seemingly, it no longer repeats one by one herein.
A kind of online method for detecting viscosity of fluid is described below, the online method for detecting viscosity of the fluid uses above-mentioned height
Warm high pressure grease fluid-mixing online viscosity detecting device only contains single oily phase, the online viscosity of the fluid in main pipeline 15
Detection method includes the following steps:
Step 1a, by the physical parameter of fluid in the sensor measurement main pipeline 15 and it is sent to the control unit；
Step 2a, the control unit calculates the fluid viscosity in main pipeline 15 according to formula one and the physical parameter；
The formula one are as follows:
In the formula one, μ is fluid viscosity, unit mPas；D is internal diameter of the pipeline (a plurality of pipe for being measured pipeline section
When road for internal diameter and), unit m；V is flow velocity, and flow velocity can be obtained by the injection rate of the first injection pump 13, m/s；For quilt
Measure the unit length flow differential pressure at pipeline section both ends, unit Pa/m；L is the length for being measured pipeline section, unit m；P is operation
Pressure (for the output pressure of the first injection pump 13), MPa, ρoFor oily phase density, unit g/cm3；G is acceleration of gravity, and g is
9.81N/kg；A, b, c and d are correction factor, and a 0.00444, b are -108.35, c 160.39, and d is -0.24.
A kind of online method for detecting viscosity of fluid is described below, the online method for detecting viscosity of the fluid uses above-mentioned height
The warm online viscosity detecting device of high pressure grease fluid-mixing, oil water mixture is contained in main pipeline 15, and main pipeline 15 enters mouth containing
Water rate is greater than 0%, and the entering water rate of main pipeline 15 is less than and equal to 30%, and the entering water rate of main pipeline 15 is main pipeline 15
The interior volume fraction containing water in oil water mixture, the online method for detecting viscosity of the fluid the following steps are included:
Step 1b, by the physical parameter of fluid in the sensor measurement main pipeline 15 and it is sent to the control unit；
Step 2b, the control unit calculates the fluid viscosity in main pipeline 15 according to formula two and the physical parameter；
The formula two are as follows:
In the formula two,
In the formula two, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, and unit is
m；V is flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is measured
The length of pipeline section, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is gravity acceleration
Degree, g 9.81N/kg；A, b, c, d are correction factor, and a is 1.22 × 10-5, b be -34322.58, c 100655.05, d be -
3.65；ρmFor the density of oil water mixture, unit g/cm3；ρlFor aqueous phase densities, unit g/cm3；For entering water
Rate.
A kind of online method for detecting viscosity of fluid is described below, the online method for detecting viscosity of the fluid uses above-mentioned height
The warm online viscosity detecting device of high pressure grease fluid-mixing, oil water mixture is contained in main pipeline 15, and main pipeline 15 enters mouth containing
Water rate be greater than 30%, the entering water rate of main pipeline 15 be less than and be equal to 50%, the online method for detecting viscosity of the fluid include with
Lower step:
Step 1c, by the physical parameter of fluid in the sensor measurement main pipeline 15 and it is sent to the control unit；
Step 2c, the control unit calculates the fluid viscosity in main pipeline 15 according to formula three and the physical parameter；
The formula three are as follows:
In the formula three,
In the formula three, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, and unit is
m；V is flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is measured
The length of pipeline section, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is gravity acceleration
Degree, g 9.81N/kg；A, b, c, d are correction factor, and it be -1.62, d is -0.5416 that a 0.05, b, which are -1809.42, c,；ρmFor
The density of oil water mixture, unit g/cm3；ρlFor aqueous phase densities, unit g/cm3；For entering water rate.
A kind of online method for detecting viscosity of fluid is described below, the online method for detecting viscosity of the fluid uses above-mentioned height
The warm online viscosity detecting device of high pressure grease fluid-mixing, oil water mixture is contained in main pipeline 15, and main pipeline 15 enters mouth containing
Water rate be greater than 50%, the entering water rate of main pipeline 15 be less than and be equal to 80%, the online method for detecting viscosity of the fluid include with
Lower step:
Step 1d, by the physical parameter of fluid in the sensor measurement main pipeline 15 and it is sent to the control unit；
Step 2d, the control unit calculates the fluid viscosity in main pipeline 15 according to formula four and the physical parameter；
The formula four are as follows:
In the formula four,
In the formula four, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, and unit is
m；V is flow velocity, m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is to be measured pipeline section
Length, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is acceleration of gravity, and g is
9.81N/kg；A, b, c, d are correction factor, and a is 1.48 × 10-4, it be -145.99, d is -1.09 that b, which is -440.03, c,；ρmFor oil
The density of aqueous mixtures, unit g/cm3；ρlFor aqueous phase densities, unit g/cm3；For entering water rate.
Described control unit formula one to formula four can be written in the computer with computer, the sensor with
Computer connection, after the data informations such as the temperature, pressure, pressure difference acquired in real time enter computer, computer can foundation
Formula model directly calculates the viscosity number of current grease fluid-mixing.
The above, only specific embodiments of the present invention cannot limit the range that invention is implemented with it, so it is equivalent
The displacement of component, or according to equivalent variations made by the invention patent protection scope and modification, should all still fall within what this patent was covered
Scope.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technical solution, technical solution with
Use can be freely combined between technical solution.
Claims (9)
1. a kind of online viscosity detecting device of high temperature and pressure grease fluid-mixing, which is characterized in that high temperature and pressure grease mixing
The online viscosity detecting device of fluid includes:
Circulation mechanism contains the first high temperature and high pressure containers (11), the second high temperature and high pressure containers (12), the first injection pump (13), height
Press reversal valve (14) and main pipeline (15), the first high temperature and high pressure containers (11), the second high temperature and high pressure containers (12) and main pipeline
(15) it is connect with high-pressure reversing valve (14), the first injection pump (13) can be logical by the liquid in the first high temperature and high pressure containers (11)
It crosses high-pressure reversing valve (14) to be injected into main pipeline (15), the first injection pump (13) can will be in the second high temperature and high pressure containers (12)
Liquid be injected into main pipeline (15) by high-pressure reversing valve (14), the first injection pump (13) and high-pressure reversing valve (14) can
Make liquid in main pipeline (15) internal circulation flow；
Temperature control mechanism can control the temperature of main pipeline (15) interior fluid；
Data acquisition and DPA data processing activity, containing sensor and control unit, the sensor can measure main pipeline (15)
The physical parameter of interior fluid is simultaneously sent to the control unit, which can be handled the physical parameter；The object
Reason parameter is temperature, pressure and pressure difference；
High-pressure reversing valve (14) high-pressure air operated valve containing there are four, four high-pressure air operated valves are respectively the first high-pressure air operated valve
(141), the second high-pressure air operated valve (142), third high-pressure air operated valve (143) and the 4th high-pressure air operated valve (144), the first high temperature are high
The arrival end of pressure vessel (11) and the arrival end of the second high temperature and high pressure containers (12) are connect with the first injection pump (13), and first is high
One end of the outlet end of warm high-pressure bottle (11) and the one end of the first high-pressure air operated valve (141) and third high-pressure air operated valve (143)
It connects simultaneously, the outlet end of the second high temperature and high pressure containers (12) and the one end of the second high-pressure air operated valve (142) and the 4th high pressure gas
The one end of dynamic valve (144) connects simultaneously, the arrival end of main pipeline (15) and the other end and the 4th of third high-pressure air operated valve (143)
The other end of high-pressure air operated valve (144) connects simultaneously, and the outlet end of main pipeline (15) is another with the first high-pressure air operated valve (141)
The other end of end and the second high-pressure air operated valve (142) connects simultaneously.
2. the online viscosity detecting device of high temperature and pressure grease fluid-mixing according to claim 1, which is characterized in that supervisor
Containing experiment test section (151), experiment test section (151) is parallel with the first assistant experiment section (152) and the second auxiliary in road (15)
Experimental section (153), the internal diameter of the second assistant experiment section (153) are greater than the internal diameter of the first assistant experiment section (152), and the first auxiliary is real
The internal diameter for testing section (152) is greater than the internal diameter of experiment test section (151), and the sensor includes connecting with experiment test section (151)
Temperature sensor, pressure sensor and differential pressure pickup.
3. the online viscosity detecting device of high temperature and pressure grease fluid-mixing according to claim 2, which is characterized in that supervisor
Road (15) is in U-shape, and experiment test section (151) is straight-tube shape, and the arrival end of main pipeline (15) passes through the first threeway (41) and high pressure
The first exit end of reversal valve (14) connects, and the outlet end of main pipeline (15) passes through the second threeway (42) and high-pressure reversing valve (14)
The connection of second outlet end, the first threeway (41) and the second threeway (42) contain interface upward and towards level sides
To interface；
The arrival end of main pipeline (15) connect with the interface of the first threeway (41) upward and the outlet end of main pipeline (15) with
The interface connection of second threeway (42) upward；
Alternatively, the arrival end of main pipeline (15) is connect with the interface of the first threeway (41) towards horizontal direction and main pipeline (15)
Outlet end is connect with the interface of the second threeway (42) towards horizontal direction.
4. the online viscosity detecting device of high temperature and pressure grease fluid-mixing according to claim 3, which is characterized in that described
Temperature control mechanism includes electrical heating controller (21) and electric heating cover (22), and electrical heating controller (21) can make electric heating cover (22)
Fever, electric heating cover (22) are wound in main pipeline (15) outside, and the online viscosity detecting device of high temperature and pressure grease fluid-mixing is also
Including high/low temperature insulating box, the first high temperature and high pressure containers (11), the second high temperature and high pressure containers (12) and high-pressure reversing valve (14) are equal
It is set in the high/low temperature insulating box.
5. the online viscosity detecting device of high temperature and pressure grease fluid-mixing according to claim 1, which is characterized in that supervisor
Road (15), which is also connected with, vacuumizes interface (154), sample connection (155) and third high temperature high-pressure bottle (16), and third high temperature is high
Pressure vessel (16) is connected with the second note for being injected into the liquid in third high temperature high-pressure bottle (16) in main pipeline (15)
Enter pump (17), sample connection (155) is equipped with counterbalance valve (56).
6. a kind of online method for detecting viscosity of fluid, which is characterized in that the online method for detecting viscosity of the fluid is wanted using right
The online viscosity detecting device of high temperature and pressure grease fluid-mixing described in asking 1, main pipeline (15) is interior only to contain single oily phase, should
The online method for detecting viscosity of fluid the following steps are included:
Step 1a, by the physical parameter of the interior fluid of the sensor measurement main pipeline (15) and it is sent to the control unit；
Step 2a, the control unit calculates the fluid viscosity in main pipeline (15) according to formula one and the physical parameter；
The formula one are as follows:
In the formula one, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, unit m；V is
Flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is to be measured pipeline section
Length, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is acceleration of gravity, g
For 9.81N/kg；A, b, c and d are correction factor, and a 0.00444, b are -108.35, c 160.39, and d is -0.24.
7. a kind of online method for detecting viscosity of fluid, which is characterized in that the online method for detecting viscosity of the fluid is wanted using right
The online viscosity detecting device of high temperature and pressure grease fluid-mixing described in asking 1, main pipeline (15) is interior to contain oil water mixture, is responsible for
The entering water rate in road (15) is greater than 0%, and the entering water rate of main pipeline (15) is less than and is equal to 30%, the online viscosity of the fluid
Detection method includes the following steps:
Step 1b, by the physical parameter of the interior fluid of the sensor measurement main pipeline (15) and it is sent to the control unit；
Step 2b, the control unit calculates the fluid viscosity in main pipeline (15) according to formula two and the physical parameter；
The formula two are as follows:
In the formula two,
In the formula two, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, unit m；V is
Flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is to be measured pipeline section
Length, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is acceleration of gravity, g
For 9.81N/kg；A, b, c, d are correction factor, and a is 1.22 × 10-5, b is -34322.58, c 100655.05, and d is -3.65；
ρmFor the density of oil water mixture, unit g/cm3；ρlFor aqueous phase densities, unit g/cm3；For entering water rate.
8. a kind of online method for detecting viscosity of fluid, which is characterized in that the online method for detecting viscosity of the fluid is wanted using right
The online viscosity detecting device of high temperature and pressure grease fluid-mixing described in asking 1, main pipeline (15) is interior to contain oil water mixture, is responsible for
The entering water rate in road (15) is greater than 30%, and the entering water rate of main pipeline (15) is less than and equal to 50%, which glues online
Detection method includes the following steps for degree:
Step 1c, by the physical parameter of the interior fluid of the sensor measurement main pipeline (15) and it is sent to the control unit；
Step 2c, the control unit calculates the fluid viscosity in main pipeline (15) according to formula three and the physical parameter；
The formula three are as follows:
In the formula three,
In the formula three, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, unit m；V is
Flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is to be measured pipeline section
Length, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is acceleration of gravity, g
For 9.81N/kg；A, b, c, d are correction factor, and it be -1.62, d is -0.5416 that a 0.05, b, which are -1809.42, c,；ρmFor grease
The density of mixture, unit g/cm3；ρlFor aqueous phase densities, unit g/cm3；For entering water rate.
9. a kind of online method for detecting viscosity of fluid, which is characterized in that the online method for detecting viscosity of the fluid is wanted using right
The online viscosity detecting device of high temperature and pressure grease fluid-mixing described in asking 1, main pipeline (15) is interior to contain oil water mixture, is responsible for
The entering water rate in road (15) is greater than 50%, and the entering water rate of main pipeline (15) is less than and equal to 80%, which glues online
Detection method includes the following steps for degree:
Step 1d, by the physical parameter of the interior fluid of the sensor measurement main pipeline (15) and it is sent to the control unit；
Step 2d, the control unit calculates the fluid viscosity in main pipeline (15) according to formula four and the physical parameter；
The formula four are as follows:
In the formula four,
In the formula four, μ is fluid viscosity, unit mPas；D is the internal diameter of the pipeline for being measured pipeline section, unit m；V is
Flow velocity, unit m/s；For the unit length flow differential pressure for being measured pipeline section both ends, unit Pa/m；L is to be measured pipeline section
Length, unit m；P is operating pressure, unit MPa, ρoFor oily phase density, unit g/cm3；G is acceleration of gravity, g
For 9.81N/kg；A, b, c, d are correction factor, and a is 1.48 × 10-4, it be -145.99, d is -1.09 that b, which is -440.03, c,；ρmFor
The density of oil water mixture, unit g/cm3；ρlFor aqueous phase densities, unit g/cm3；For entering water rate.
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| CA2634959C (en) * | 2005-12-27 | 2013-02-05 | Wolfgang Drahm | In-line measuring devices and method for compensating measurement errors in in-line measuring devices |
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| CN102305753B (en) * | 2011-05-25 | 2013-01-30 | 北京航空航天大学 | Method and device for measuring viscosity of high-temperature high-pressure fluid |
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