CN102564902A - Novel online viscosity measurement method - Google Patents
Novel online viscosity measurement method Download PDFInfo
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- CN102564902A CN102564902A CN2011103153274A CN201110315327A CN102564902A CN 102564902 A CN102564902 A CN 102564902A CN 2011103153274 A CN2011103153274 A CN 2011103153274A CN 201110315327 A CN201110315327 A CN 201110315327A CN 102564902 A CN102564902 A CN 102564902A
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Abstract
The invention discloses a novel online viscosity measurement method, and belongs to the fields of measurement in an instrument division of a physical part according to the division of an international patent classification (IPC), measurement not special for specific variables in the large class of test, devices for measuring two or more variables outside other independent small classes, charging equipment, and application of a public indication element to two or more variables in the indication supergroup for measured values in measurement or test small classes not listed into other classes. The method aims to solve the problem of influence of pressure fluctuation on online viscosity measurement. The method is implemented by using a buffer device, a coiled pipe, differential pressure determination devices, a flow measurement device and a signal processing system. Fluid sequentially flows through the buffer device, the coiled pipe and the flow measurement device, and finally flows back to a main line. The differential pressure determination devices are arranged at the two ends of the coiled pipe. A differential pressure signal and a flow signal are transmitted back to the signal processing system to be used for computing the apparent viscosity of the fluid. According to the method, the viscosity of pulsating fluid in the pipe can be measured on line; a test process is simple and unattended; and the method is conveniently popularized and used.
Description
(1) technical field:
The online viscosity measurement method that this is novel belongs to physical department by International Patent Classification (IPC) (CIP) division, and instrument branch measures; Big type of test, the non-measurement that is exclusively used in particular variables; Be not included in the device of the two or more variablees of measurement in other independent groups; Counting equipment; Exclude the measurement or the test group of other classifications, the indication of measured value is organized greatly, and two or more variablees are used a public indicator elment field.
(2) background technology:
Capillary type in-line viscometer in the past is based on the Bo Shi law; The main body of instrument is one section tubule, and tubule is connected with fixed displacement pump, gets into tubule by fixed displacement pump control fluid with constant flow; There is pressure monitor to measure the pressure differential at tubule two ends, according to the viscosity of Bo Shi company Fluid Computation.This type in-line viscometer generally uses in petrochemical refining's industry at present
[1]Because pipeline is connected with pump usually, so in-line viscometer must move in the environment of continuous shaking, this will produce error signal
[2]
In the online viscosity measurement, rotational viscosimeter than other method use wider
[3], it is applicable to all fluids, i.e. and Newton type fluid and non-Newtonian fluid use simply, measure quick and conveniently, are convenient to continuous coverage, and still required hardware device is more, and complex structure costs an arm and a leg.Traditional rotary viscosimeter all is mechanical; Mainly utilize reversing of flexible member to obtain the moment of torsion of rotating cylinder; This structure has not only been stipulated very high technical requirement to flexible member; And, make people become difficult to the record and the processing of data because the data of gained all belong to mechanical quantity
[4]
Xiao the army and the people
[5]Proposed a kind of digital viscosity apparatus, it is based on single cylinder rotary viscosimeter, and rotating cylinder produces moment of torsion in the opposite direction of rotation; Pass to top torque sensor to torque signal; At this moment torque sensor will produce faint analog voltage signal, amplify and will convert in the digital signal input microcomputer through A/D converter and handle, thereby calculate measured matter viscosity; But this Digital Viscometer can be used under the not too harsh situation of condition well; But when pressure in the pipeline is very big, it is sealed well is installed in the pipeline, and to make it keep specific rotating speed be difficulty very
[4]
Daniel Schrag
[6]Deng having proposed a kind of no bearing in-line viscometer; Rotating cylinder is not to be supported by rotating shaft; But in the effect low suspension of one group of corrosion resistant magnetisable material a ducted circular other chamber, and with the certain speed rotation, but have the pipeline of pressure surge; The smooth rotation that guarantees the suspension rotating cylinder is then very difficult, applies to semi-conductor industry at present.
The online viscosity measurement starting of oscillatory type is later relatively, but development is very fast.The sensing head of vibratory drilling method is a right cylinder, and with constant amplitude vibration, when it sheared fluid, the viscosity of fluid was influential to the sensing head vibration amplitude, measured and kept the power that uniform amplitude is imported, and calculated the product of viscosity and density.The theoretical measurement range of this type in-line viscometer is also very wide, be suitable for different fluids and measure, but the shearing rate when measuring can not accurate Calculation
[1]
The plunger type in-line viscometer is the piston that utilizes level or a vertical movement in fluid, measures the viscosity that the run duration of piston in the fixed position calculates fluid.This type viscosity meter is the measurement of intermittent type, is not the on-line measurement on the complete meaning; While is owing to the motion that is the dependence piston, so flowing of fluid self will be to measuring the certain influence of generation
[1]
(3) summary of the invention:
The purpose of this new method is to solve the influence of the pressure surge of ram pump to online viscosity measurement.
This novel method will address the above problem the new technical scheme that is adopted and be achieved in that through the other pipe that connects one inch of a diameter on backbone; Fluid is introduced buffering device; And also finally being back to main line through coil pipe, flow measurement device successively, there is the differential pressure determinator at the coil pipe two ends, are used to measure the pressure reduction at two ends; Pressure difference signal and flow signal are transferred to signal processing system, are used for Fluid Computation viscosity.
In structure and combination; The total essential features of this novel online viscosity measurement method and immediate prior art is: tubule connection traffic measurement mechanism is arranged in the device; Differential pressure measuring installation is equipped with at the tubule two ends, and differential pressure determinator and flow measurement device gained data all transfer to signal processing system.With immediate prior art different techniques characteristic be: the other line of taking over gets into coil pipe through buffering device earlier again.
Buffering device has buffer action to pressure surge
[7],
In the formula: F
1---ducted pressure surge;
F
2---the pressure surge in the buffering device;
A
1---the negotiable area of pipeline;
A
2---the negotiable area of buffering device;
a
1---ducted pressure velocity of wave;
a
2---the pressure velocity of wave in the surge tank.
According to formula (1), a
1, a
2Sizableness, A
2Much larger than A
1The time,
Be worth very little, so buffering device has played the effect that reduces pressure surge effectively.
Coil pipe has been saved the space, and still meets the tubule law theory
[8],
If tubule is curved radius is R
0Arcuation, the pressure reduction at L two ends is Δ p, the tubule internal diameter is R, and formula (2) is then arranged:
Work as R
0When enough big,
Can ignore the crooked error that produces of tubule.
The beneficial effect of this novel online viscosity measurement method is: reduced the fluctuation range of pressure signal greatly, measurement parameter is more accurate; The other line of taking over adopts small pipe-line, does not influence the ordinary production of backbone, and its inner fluid flow state belongs to laminar flow, and the theoretical foundation of accurate Calculation viscosity parameter is arranged; Adopt coil pipe can guarantee the distance between the differential pressure measurement point, and practiced thrift the space; In signal processing system, resulting pressure signal is carried out filtering, obtain the pressure stable signal, the accurate Calculation viscosity parameter; Other take over mounted valve on the line, can select, control whether carrying out online viscosity measurement, even more exchange device does not influence the main line ordinary production yet.Compare immediate prior art two advantages and improvement arranged:
The first, buffering device has been installed, reduced the fluctuation range of pressure signal greatly, measurement parameter more accurately.
The second, selected coil pipe, guarantee the distance between the differential pressure measurement point, and practiced thrift the space.
(4) description of drawings:
What accompanying drawing provided is the schematic flow sheet of measurement mechanism.
The each several part label declaration:
1 other line 2 buffering devices 3 coil pipes 4 differential pressure determinators 5 flow measurement devices 6 signal processing systems 7 of taking over are managed the line that drains off
(5) embodiment:
Below in conjunction with accompanying drawing, further explanation is done in the realization of this novel online viscosity measurement method:
The device static structure of this method: please join accompanying drawing: as shown in the figure, this novel online viscosity monitoring device mainly is made up of side adapter line 1, buffering device 2, coil pipe 3, differential pressure determinator 4, flow measurement device 5, signal processing system 6.Other take over the pipeline that line 1 and coil pipe 3 are one inch of diameter, buffering device 2, differential pressure determinator 4, flow measurement device 5, signal processing system 6 are selected for use by market.
In structure and combination; The total essential features of this novel online viscosity measurement method and immediate prior art is: tubule connection traffic measurement mechanism 5 is arranged in the device; Differential pressure measuring installation 4 is equipped with at the tubule two ends, and differential pressure determinator 4 all transfers to signal processing system 6 with flow measurement device 5 gained data.With immediate prior art different techniques characteristic be: the other line 1 of taking over gets into coil pipe 3 through buffering device 2 earlier again; 2 pairs of pressure surges of buffering device have buffer action; Adopt coil pipe 3 that the distance between the differential pressure measurement point is guaranteed, and take up space and obviously dwindle.
Pass through method of application below; Further set forth the dynamic structure relation of this novel online device for measuring viscosity: in use, line 1 is taken on the side be communicated with backbone, fluid is through the other line 1 of taking over; Get into buffering device 2, pressure surge will weaken in buffering device 2; Fluid gets into coil pipe 3 behind buffering device 2, there is pressure reduction determinator 4 at the two ends of coil pipe 3, is used to measure coil pipe 3 pressure at two ends; Fluid is through coil pipe 3 laggard inbound traffics measurement mechanisms 5, and flow measurement device 5 is used to record fluid flow; Fluid is back to backbone through flow measurement device 5.
List of references
[1] China. Ding Xiaojiong. rheology problem [J/OL] .http that should be noted that in the online viscosity measurement: //www.brookfield.com.c n/uploadfiles/2010920164037563.pdf
[2] Chinese .J.V.Filzgerala etc. online viscosity measurement [J]. measure .1989 (02): 40-42. abroad
[3] China. Chen Huizhao compiles. viscosity measurement [M]. China Measuring Press, 2003:142-166,227-247.
[4] China. just virgin, Chen Lijun, cold strong. rotational viscosimeter summary [J]. robotization review, 2007 (01): 68-70.
[5] China. Xiao the army and the people, Chen Guoxiang. a kind of research and development [J] of New Rotary numeral viscosity apparatus. metering and measuring technology, 2003 (05): 12-13.
[6]USA.Simon?Huwyler，Daniel?Schrag，Richard?Gilbert，Todd?Thorsen，Reto?Schob，Jurgen?Hahn.Bearingless?in-line?viscometer?for?the?semiconductor?industry[J].IEEE，2003：1077-1081.
[7] China. Zhang Guozhong. Transient Flow in Pipeline analysis [M]. Dongying: publishing house of University of Petroleum, 1994.
[8] China. Li Chuanxian. crude oil rheology [M]. Dongying: publishing house of China University Of Petroleum Beijing, 2007.
Claims (1)
1. novel online viscosity measurement method, it is taken over line (1), buffering device (2), coil pipe (3), differential pressure determinator (4), flow measurement device (5), signal processing system (6) by the side and forms.Its objective is and solve the influence of the interior pressure fluctuation of pipe online viscosity measurement.It is characterized in that: through the other other line (1) of taking over that connects one inch of a diameter on backbone; Fluid is introduced buffering device (2); And also finally being back to main line through coil pipe (3), flow measurement device (5) successively, there is differential pressure determinator (4) at coil pipe (3) two ends, are used to measure the pressure reduction at two ends; Pressure difference signal and flow signal are transferred to signal processing system (6), through to signal Processing with Fluid Computation viscosity.This online viscosity measurement method is different from immediate prior art characteristic and is: at the preceding buffering device (2) of having installed of differential pressure determinator (4); The pressure fluctuation at the upper reaches has been played the effect of buffering; Reduced the fluctuation range of pressure signal greatly; Carried out pre-filtering for data acquisition system (DAS), measurement parameter is more accurate; The other line (1) of taking over adopts small pipe-line, does not influence the ordinary production of backbone, and its inner fluid flow state belongs to laminar flow, can be according to correlation theory accurate Calculation viscosity; Adopt coil pipe (3) that the distance between the differential pressure measurement point is guaranteed, and take up space and obviously dwindle; In signal processing system (6), resulting pressure signal is carried out filtering, obtain the pressure stable signal, the accurate Calculation viscosity parameter; The other line (1) of taking over is gone up the mounting flange valve, can select, control whether carrying out online viscosity measurement, also is convenient to more exchange device and does not influence the main line ordinary production.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969156A (en) * | 2013-02-01 | 2014-08-06 | 新疆石油勘察设计研究院（有限公司） | Method for predicting the maximum pipeline section length of flowing-through of pressurized crude oil |
| CN106092216A (en) * | 2015-03-24 | 2016-11-09 | Avl列表有限责任公司 | The system of the time-resolved discharge process of fluid for measuring |
| CN106990020A (en) * | 2017-06-01 | 2017-07-28 | 魏钦磊 | The online rheological analysis device of polymer solution high pressure |
| CN107849912A (en) * | 2015-03-11 | 2018-03-27 | S.P.C.M.股份公司 | The device of the quality for the water-soluble polymer solution that on-line monitoring is prepared from the conversion emulsion or powder of water-soluble polymer |
| CN108562514A (en) * | 2018-01-23 | 2018-09-21 | 中国石油大学(北京) | High temperature and pressure low velocity gas micro-pipe device for measuring viscosity and its measurement method |
| CN110539470A (en) * | 2019-09-06 | 2019-12-06 | 青岛科技大学 | Device and method for measuring rubber viscosity in metering section of rubber extruder on line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62211542A (en) * | 1986-03-13 | 1987-09-17 | Toyobo Co Ltd | Fine pipe type viscometer |
| CN1195401A (en) * | 1995-09-07 | 1998-10-07 | 微动公司 | Viscosimeter calibration system and method of operating same |
| CN101082535A (en) * | 2004-11-11 | 2007-12-05 | 西安交通大学 | Method for testing performance of micro-dimension labyrinth type unit flow passage waterpower |
| CN201955287U (en) * | 2011-01-05 | 2011-08-31 | 东南大学 | Device for testing flowing performance of blood flow at lesion position implanted with vascular stent |
-
2011
- 2011-10-12 CN CN2011103153274A patent/CN102564902A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62211542A (en) * | 1986-03-13 | 1987-09-17 | Toyobo Co Ltd | Fine pipe type viscometer |
| CN1195401A (en) * | 1995-09-07 | 1998-10-07 | 微动公司 | Viscosimeter calibration system and method of operating same |
| CN101082535A (en) * | 2004-11-11 | 2007-12-05 | 西安交通大学 | Method for testing performance of micro-dimension labyrinth type unit flow passage waterpower |
| CN201955287U (en) * | 2011-01-05 | 2011-08-31 | 东南大学 | Device for testing flowing performance of blood flow at lesion position implanted with vascular stent |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969156A (en) * | 2013-02-01 | 2014-08-06 | 新疆石油勘察设计研究院（有限公司） | Method for predicting the maximum pipeline section length of flowing-through of pressurized crude oil |
| CN103969156B (en) * | 2013-02-01 | 2017-10-10 | 新疆科力新技术发展股份有限公司 | The method that the pressurized crude oil of prediction flows through the maximum length of pipe section of pipeline |
| CN107849912A (en) * | 2015-03-11 | 2018-03-27 | S.P.C.M.股份公司 | The device of the quality for the water-soluble polymer solution that on-line monitoring is prepared from the conversion emulsion or powder of water-soluble polymer |
| CN106092216A (en) * | 2015-03-24 | 2016-11-09 | Avl列表有限责任公司 | The system of the time-resolved discharge process of fluid for measuring |
| CN106092216B (en) * | 2015-03-24 | 2021-04-20 | Avl列表有限责任公司 | System for measuring a time-resolved flow process of a fluid |
| CN106990020A (en) * | 2017-06-01 | 2017-07-28 | 魏钦磊 | The online rheological analysis device of polymer solution high pressure |
| CN108562514A (en) * | 2018-01-23 | 2018-09-21 | 中国石油大学(北京) | High temperature and pressure low velocity gas micro-pipe device for measuring viscosity and its measurement method |
| CN108562514B (en) * | 2018-01-23 | 2024-04-12 | 中国石油大学(北京) | High-temperature high-pressure low-speed gas microtube viscosity measuring device and measuring method thereof |
| CN110539470A (en) * | 2019-09-06 | 2019-12-06 | 青岛科技大学 | Device and method for measuring rubber viscosity in metering section of rubber extruder on line |
| CN110539470B (en) * | 2019-09-06 | 2021-05-07 | 青岛科技大学 | Device and method for measuring rubber viscosity in metering section of rubber extruder on line |
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Application publication date: 20120711 |