CN105300835B - Liquid density on-line measurement device - Google Patents
Liquid density on-line measurement device Download PDFInfo
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- CN105300835B CN105300835B CN201510802969.5A CN201510802969A CN105300835B CN 105300835 B CN105300835 B CN 105300835B CN 201510802969 A CN201510802969 A CN 201510802969A CN 105300835 B CN105300835 B CN 105300835B
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- drive link
- swing arm
- torque drive
- tension sensor
- support rod
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Abstract
The present invention relates to petrochemical industry Instrument technology fields, are a kind of liquid density on-line measurement devices；It includes main support rod, swing arm, floating ball and torque drive link；Housing is installed on the top of main support rod, circuit board is installed in housing, is installed with signal conversion module on circuit boards, moment converting member is fixedly mounted in the lower part of main support rod.Reasonable and compact in structure of the present invention, it is easy to use, pass through being used cooperatively for main support rod, torque converting member, swing arm, floating ball, torque drive link, tension sensor and circuit board, realize the purpose of fluid density on-line continuous measurement, the continuous on-line measurement of drilling fluid density suitable for oil drilling process；Have the characteristics that safe and reliable, easy for installation and be hardly damaged, improve the accuracy of measurement, extend service life.
Description
Technical field
The present invention relates to petrochemical industry Instrument technology fields, are a kind of liquid density on-line measurement devices.
Background technology
In petrochemical industry and food processing etc., much fields are all a critically important parameters, it is necessary to track to fluid density
The variation of density is measured, the measurement of fluid density is also there are many method, including bydrostatic balance method, pressure differential method, activity method etc.；Mesh
The preceding method continuously detected for petrochemical industry density mostly using pressure differential method, measures the fluid pressure at two different depths
Value converses the density of liquid using the pressure differential principle directly proportional to the density of liquid；The sensor of this type is general
Measurement data is relatively accurate when chemical industry is applied, signal stabilization, and application effect is preferable, but in oil/gas drilling exploration and development process
In be applied to measurement drilling fluid density when there is the defects of certain；Main cause is that the installation measuring environment of sensor cannot expire
The measuring condition of sufficient sensor, first, liquid level variation is frequent, upper pressure measurement point is not immersed in stable liquid sometimes,
Second is that drilling fluid is a kind of anisotropic liquid, particularly drilling fluid returns outlet, and the solid-phase component containing sand, mud is more, sensor
Lower pressure sensing diaphragm is often buried by solid formation, causes pressure measurement distortion, and then the accuracy of measurement is affected greatly；
Secondly, pressure difference sensor structure bulky, membrane for pressure measurement and pressure transmission pipeline are more fragile, are damaged after being vulnerable to shock or abrasion
Bad, scene can not repair.
The content of the invention
The present invention provides a kind of liquid density on-line measurement devices, overcome the deficiency of the above-mentioned prior art, can have
The pressure measuring module of existing liquid density measurement device is easily buried shadow by sand setting during effect solution oil/gas drilling exploration and development
Ring measurement accuracy and hydraulic pressure diaphragm and the fragile flimsy problem of pipeline.
The technical scheme is that realized by following measures：A kind of liquid density on-line measurement device, including
Main support rod, swing arm, floating ball and torque drive link；Housing is installed on the top of main support rod, the fixed peace in housing
Equipped with circuit board, signal conversion module is installed on circuit boards, and moment, which is fixedly mounted, in the lower part of main support rod turns
Component is changed, the first mounting groove of vertical direction is provided on the outer upper end face of torque converting member, one end of swing arm passes through
Axis is mounted in the first mounting groove, is installed with floating ball on the other end of swing arm, the lower end of torque drive link and swing arm
Middle part vertical connection is together；Clamping piece is installed on the top of main support rod, level is installed on clamping piece
Connecting plate, horizontal connecting plate and swing arm are parallel, and tension sensor, torque transmission are installed in the bottom of horizontal connecting plate
The upper surface of bar and the elastic element of tension sensor are in contact, the signal output part of tension sensor and signal conversion module
Signal input part is electrically connected by cable.
Here is the further optimization and/or improvements to foregoing invention technical solution：
Above-mentioned torque drive link includes upper torque drive link and lower torque drive link；Upper torque drive link and the transmission of lower torque
Bar is linked together by buffering pipe nipple, together with the lower end of lower torque drive link and the middle part vertical connection of swing arm, upper torque
The upper surface of drive link and the elastic element of tension sensor are in contact.
Above-mentioned that the second mounting groove is provided on the middle part upper surface of swing arm, the lower end of lower torque drive link is vertical by axis
In the second mounting groove.
Mentioned strain sensor is explosion-proof tension sensor, and housing is anti-riot seal casinghousing, and cable is anti-riot cable, in shell
Entrance hole and outlet hole are respectively arranged on body, terminals are installed with respectively on the entrance hole and outlet hole of housing；Electricity
Cable is electrically connected through the terminals on entrance hole and the signal output part of tension sensor and the signal input part of signal conversion module
It is connected together.
Above-mentioned torque converting member is sealing bearing.
Above-mentioned floating ball is hollow float.
Reasonable and compact in structure of the present invention, it is easy to use, pass through main support rod, torque converting member, swing arm, floating ball, power
Square drive link, tension sensor and circuit board are used cooperatively, and realize the purpose of fluid density on-line continuous measurement, suitable for stone
The continuous on-line measurement of drilling fluid density in oily drilling process；Have the characteristics that safe and reliable, easy for installation and be hardly damaged, carry
The high accuracy of measurement, extends service life.
Description of the drawings
Attached drawing 1 is the dimensional structure diagram of preferred embodiment.
Coding in attached drawing is respectively：1 is main support rod, and 2 be swing arm, and 3 be floating ball, and 4 be housing, and 5 be torque converter section
Part, 6 be the first mounting groove, and 7 be clamping piece, and 8 be horizontal connecting plate, and 9 be tension sensor, and 10 be upper torque drive link, and 11 are
Lower torque drive link, 12 is buffer pipe nipple, and 13 be the second mounting groove, and 14 be terminals.
Specific embodiment
The present invention from following embodiments limitation, can technique according to the invention scheme and actual conditions determine specifically
Embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to Figure of description 1
Butut mode be described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is the cloth according to Figure of description 1
Figure direction is come definite.
With reference to embodiment and attached drawing, the invention will be further described：
As shown in Figure 1, which includes main support rod 1, swing arm 2, floating ball 3 and torque transmission
Bar；Housing 4 is installed on the top of main support rod 1, circuit board is installed in housing 4, is fixed on circuit boards
Signal conversion module is installed, moment converting member 5 is fixedly mounted in the lower part of main support rod 1, in torque converting member 5
The first mounting groove 6 of vertical direction is provided on outer upper end face, one end of swing arm 2 is mounted on by axis in the first mounting groove 6,
Floating ball 3 is installed on the other end of swing arm 2, together with the lower end of torque drive link and the middle part vertical connection of swing arm 2；
Clamping piece 7 is installed on the top of main support rod 1, horizontal connecting plate 8, horizontal connection are installed on clamping piece 7
Plate 8 and swing arm 2 are parallel, and tension sensor 9, the upper surface of torque drive link are installed in the bottom of horizontal connecting plate 8
It is in contact with the elastic element of tension sensor 9, the signal output part of tension sensor 9 and the signal input of signal conversion module
End is electrically connected by cable.In this way, it is driven by main support rod 1, torque converting member 5, swing arm 2, floating ball 3, torque
Bar, tension sensor 9 and circuit board are used cooperatively, and realize the purpose of fluid density on-line continuous measurement, suitable for petroleum drilling
The continuous on-line measurement of drilling fluid density during spy；It is easy that relatively existing liquid density measurement device overcomes pressure measuring module
The defects of being buried by sand setting, influencing measurement accuracy and hydraulic pressure diaphragm, pipeline fragility sensitive for damages；With safe and reliable, peace
The characteristics of dress is convenient and is hardly damaged, improves the accuracy of measurement, extends service life.Main support rod 1, floating ball 3, housing
4th, swing arm 2 and torque drive link meet Exd II BT6 explosion-proof criterias, degree of protection is using corrosion-resistant stainless steel material
IP66, suitable for situ of drilling well danger adverse circumstances.In use, by the signal output part of signal conversion module and outside display
Signal input part be electrically connected by cable.Using Archimedes principle, object is subject to floating the present invention in a liquid
The volume that power size arranges liquid to the density and object of liquid is directly proportional, the object in immersion liquid（Floating ball）What is be subject to is floating
Power is converted into the pressure to metal strain sensor by torque transformational structure, so as to which fluid density is converted into tension sensor
9 electric signal；Can on-line continuous measurement fluid density dynamic change.The operating voltage of tension sensor 9 is 24V direct currents
Source, signal output 4 mA to 20mA are versatile.
Aforesaid liquid density on-line measurement device can be made further optimization and/or improvements according to actual needs：
As shown in Figure 1, torque drive link includes upper torque drive link 10 and lower torque drive link 11；Upper torque drive link
10 and lower torque drive link 11 linked together by buffering pipe nipple 12, the lower end of lower torque drive link 11 and the middle part of swing arm 2
Together, the upper surface of upper torque drive link 10 and the elastic element of tension sensor 9 are in contact vertical connection.In this way, buffering
Pipe nipple 12 uses corrosion-resistant stainless steel material, meets Exd II BT6 explosion-proof criterias, degree of protection IP66 shows suitable for drilling well
The dangerous adverse circumstances in field.Buffering pipe nipple 12 is convenient for playing better buffering effect.The elastic element of tension sensor 9 can be resistance
Foil gauge.
As shown in Figure 1, the second mounting groove 13 is provided on the middle part upper surface of swing arm 2, lower torque drive link 11
Lower end is vertically mounted on by axis in the second mounting groove 13.In this way, the second mounting groove 13 is convenient for lower torque drive link 11 and swing arm 2
Connection.
As needed, tension sensor 9 is explosion-proof tension sensor, and housing 4 is anti-riot seal casinghousing, and cable is anti-riot electricity
Cable is respectively arranged with entrance hole and outlet hole on housing 4, is installed with respectively on the entrance hole and outlet hole of housing 4
Terminals 14；Cable is through the signal output part and signal conversion module of the terminals 14 on entrance hole and tension sensor 9
Signal input part is electrically connected.In this way, tension sensor 9 is explosion-proof tension sensor, housing 4 is anti-riot seal casinghousing,
Cable is anti-riot cable, meets Exd II BT6 explosion-proof criterias, degree of protection IP66, suitable for the dangerous severe ring of situ of drilling well
Border.
As needed, torque converting member 5 is sealing bearing.In this way, torque converting member 5 is met using closed bearing
Exd II BT6 explosion-proof criterias, degree of protection IP66, suitable for situ of drilling well danger adverse circumstances.
As needed, floating ball 3 is hollow float.
More than technical characteristic constitutes highly preferred embodiment of the present invention, is imitated with stronger adaptability and optimal implementation
Fruit can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (1)
1. a kind of liquid density on-line measurement device, it is characterised in that including main support rod, swing arm, floating ball and torque drive link；
Housing is installed on the top of main support rod, circuit board is installed in housing, is installed on circuit boards
Moment converting member is fixedly mounted in the lower part of main support rod, in the outer upper end of torque converting member in signal conversion module
The first mounting groove of vertical direction is provided on face, one end of swing arm is mounted on by axis in the first mounting groove, in the another of swing arm
Floating ball is installed on one end, together with the lower end of torque drive link and the middle part vertical connection of swing arm；In main support rod
Top is installed with clamping piece, and horizontal connecting plate is installed on clamping piece, and horizontal connecting plate and swing arm are parallel,
The bottom of horizontal connecting plate is installed with tension sensor, the upper surface of torque drive link and the elastic element of tension sensor
It is in contact, the signal output part of tension sensor and the signal input part of signal conversion module are electrically connected by cable；
Wherein:Torque drive link includes upper torque drive link and lower torque drive link；Upper torque drive link and lower torque drive link pass through
Buffering pipe nipple links together, together with the lower end of lower torque drive link and the middle part vertical connection of swing arm, upper torque drive link
Upper surface and the elastic element of tension sensor be in contact；The second mounting groove is provided on the middle part upper surface of swing arm, is exerted oneself
The lower end of square drive link is vertically mounted on by axis in the second mounting groove；Tension sensor is explosion-proof tension sensor, and housing is
Anti-riot seal casinghousing, cable be anti-riot cable, entrance hole and outlet hole are respectively arranged on housing, housing entrance hole and
Terminals are installed on outlet hole respectively；Cable passes through the signal output part of the terminals and tension sensor on entrance hole
It is electrically connected with the signal input part of signal conversion module；Torque converting member is sealing bearing；Floating ball is hollow float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802969.5A CN105300835B (en) | 2015-11-19 | 2015-11-19 | Liquid density on-line measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802969.5A CN105300835B (en) | 2015-11-19 | 2015-11-19 | Liquid density on-line measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN105300835A CN105300835A (en) | 2016-02-03 |
| CN105300835B true CN105300835B (en) | 2018-05-29 |
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| CN201510802969.5A Active CN105300835B (en) | 2015-11-19 | 2015-11-19 | Liquid density on-line measurement device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203563Y (en) * | 2008-04-30 | 2009-03-04 | 马兆辉 | Fluid closed-loop integrated online liquid density transmitter |
| CN101819123A (en) * | 2010-04-19 | 2010-09-01 | 北京矿冶研究总院 | Slurry Concentration Meter Based on Buoyancy Measuring Principle |
| CN204188483U (en) * | 2014-10-15 | 2015-03-04 | 中国石油集团西部钻探工程有限公司 | Drilling fluid density sensor |
| CN205138942U (en) * | 2015-11-19 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Liquid density on - line measuring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294728A (en) * | 1993-04-08 | 1994-10-21 | Unisia Jecs Corp | Liquid density measuring equipment |
| SE536170C2 (en) * | 2011-09-27 | 2013-06-11 | Scania Cv Ab | Measurement system for measuring the density and level of a liquid in a container |
-
2015
- 2015-11-19 CN CN201510802969.5A patent/CN105300835B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203563Y (en) * | 2008-04-30 | 2009-03-04 | 马兆辉 | Fluid closed-loop integrated online liquid density transmitter |
| CN101819123A (en) * | 2010-04-19 | 2010-09-01 | 北京矿冶研究总院 | Slurry Concentration Meter Based on Buoyancy Measuring Principle |
| CN204188483U (en) * | 2014-10-15 | 2015-03-04 | 中国石油集团西部钻探工程有限公司 | Drilling fluid density sensor |
| CN205138942U (en) * | 2015-11-19 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Liquid density on - line measuring device |
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| CN105300835A (en) | 2016-02-03 |
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Effective date of registration: 20201104 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 834000 the Xinjiang Uygur Autonomous Region Karamay South Road No. 2 Karamay logging engineering company Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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