CN105300835A - Liquid density online measuring device - Google Patents
Liquid density online measuring device Download PDFInfo
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- CN105300835A CN105300835A CN201510802969.5A CN201510802969A CN105300835A CN 105300835 A CN105300835 A CN 105300835A CN 201510802969 A CN201510802969 A CN 201510802969A CN 105300835 A CN105300835 A CN 105300835A
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- moment
- drive link
- liquid density
- tension pick
- swing arm
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Abstract
The invention relates to the technical field of instruments in petrochemical industry, and discloses a liquid density online measuring device. The device comprises a main support rod, a swing arm, a floating ball, and a moment transmission rod. A shell is fixedly arranged on the upper part of the main support rod. A circuit board is fixedly arranged in the shell, a signal conversion module is fixedly arranged on the circuit board, and a moment conversion part is fixedly arranged on the lower part of the main support rod. The structure of the device is reasonable and compact, and the device is user-friendly. Through the cooperation among the main support rod, moment conversion part, swing arm, floating ball, moment transmission rod, tension sensor, and circuit board, the continuous online liquid density measurement can be achieved, and the device can be used to continuously measure the density of drilling liquid on line during the drilling process, has the characteristics of safety, reliability, convenient installation, and durability, improves the accuracy of measurement, and has a prolonged service life.
Description
Technical field
the present invention relates to petrochemical complex Instrument technology field, is a kind of liquid density on-line measurement device.
Background technology
fluid density is all a very important parameter in a lot of field such as petrochemical complex and food processing, and need the change of tracking measurement density, the measurement of fluid density also has multiple method, comprises specific gravity balance method, pressure differential method, activity method etc.; At present for method many employings pressure differential method of petrochemical industry density continuous detecting, measure the liquid pressure value at two different depth places, the principle utilizing pressure differential to be directly proportional to the density of liquid converses the density of liquid; Sensor measurement data when general chemical industry application of this type is relatively more accurate, signal stabilization, and effect is better, but just there is certain defect when being applied to measurement drilling fluid density in oil/gas drilling exploratory development process; Main cause be sensor install and measure the measuring condition that environment can not meet sensor, one is that liquid level change is frequent, sometimes upward pressure measurement point does not immerse in stable liquid, two is drilling fluids is a kind of anisotropic liquids, particularly drilling fluid returns outlet, and the solid-phase component containing sand, mud is more, and the downforce of sensor detects diaphragm and often buried by solid formation, build-up of pressure measures distortion, and then affects greatly the accuracy measured; Secondly, pressure difference sensor structure bulky, membrane for pressure measurement and pressure transmission pipeline more fragile, be vulnerable to clash into or damage after wearing and tearing, scene cannot be keeped in repair.
Summary of the invention
the invention provides a kind of liquid density on-line measurement device, overcome the deficiency of above-mentioned prior art, its pressure measuring module that effectively can solve existing liquid density measurement device in oil/gas drilling exploratory development process is subject to sand setting and buries and affect measurement accuracy and hydraulic pressure diaphragm and the fragile flimsy problem of pipeline.
technical scheme of the present invention is realized by following measures: a kind of liquid density on-line measurement device, comprises main support rod, swing arm, ball float and moment drive link; Housing is installed with on the top of main support rod, at housing internal fixtion, circuit board is installed, be installed with signal conversion module on circuit boards, moment converting member is installed with in the bottom of main support rod, the outer upper end face of moment converting member is provided with the first mounting groove of vertical direction, one end of swing arm is arranged in the first mounting groove by axle, and the other end of swing arm is installed with ball float, together with the lower end of moment drive link is vertically connected on the middle part of swing arm; Holder is installed with on the top of main support rod, holder is installed with horizontal connecting plate, horizontal connecting plate and swing arm parallel, tension pick-up is installed with in the bottom of horizontal connecting plate, the upper surface of moment drive link and the flexible member of tension pick-up contact, and the signal output part of tension pick-up and the signal input part of signal conversion module are electrically connected by cable.
here is the further optimization and/or improvements to foregoing invention technical scheme:
above-mentioned moment drive link comprises moment drive link and lower moment drive link; Upper moment drive link and lower moment drive link are linked together by buffering pipe nipple, and together with the lower lower end of moment drive link is vertically connected on the middle part of swing arm, the upper upper surface of moment drive link and the flexible member of tension pick-up contact.
above-mentionedly on the upper surface, middle part of swing arm, be provided with the second mounting groove, the lower end of lower moment drive link is vertically mounted in the second mounting groove by axle.
mentioned strain sensor is explosion-proof tension pick-up, and housing is anti-riot seal casinghousing, and cable is anti-riot cable, and housing is respectively arranged with entrance hole and wire hole, and the entrance hole and wire hole of housing are installed with terminals respectively; Cable is electrically connected through the terminals on entrance hole and the signal output part of tension pick-up and the signal input part of signal conversion module.
above-mentioned moment converting member is sealing bearing.
above-mentioned ball float is hollow float.
reasonable and compact in structure of the present invention, easy to use, by main support rod, moment converting member, swing arm, ball float, moment drive link, tension pick-up and circuit board with the use of, realize the object that fluid density on-line continuous is measured, be applicable to the continuous on-line measurement of drilling fluid density in oil drilling process; There is safe and reliable, easy for installation and non-damageable feature, improve the accuracy of measurement, extend serviceable life.
Accompanying drawing explanation
accompanying drawing 1 is the perspective view of preferred embodiment.
coding in accompanying drawing is respectively: 1 is main support rod, and 2 is swing arm, and 3 is ball float, 4 is housing, and 5 is moment converting member, and 6 is the first mounting groove, 7 is holder, 8 is horizontal connecting plate, and 9 is tension pick-up, and 10 is upper moment drive link, 11 is lower moment drive link, 12 is buffering pipe nipple, and 13 is the second mounting groove, and 14 is terminals.
Embodiment
the present invention by the restriction of following embodiment, can not determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
as shown in Figure 1, this liquid density on-line measurement device comprises main support rod 1, swing arm 2, ball float 3 and moment drive link; Housing 4 is installed with on the top of main support rod 1, at housing 4 internal fixtion, circuit board is installed, be installed with signal conversion module on circuit boards, moment converting member 5 is installed with in the bottom of main support rod 1, the outer upper end face of moment converting member 5 is provided with the first mounting groove 6 of vertical direction, one end of swing arm 2 is arranged in the first mounting groove 6 by axle, the other end of swing arm 2 is installed with ball float 3, together with the lower end of moment drive link is vertically connected on the middle part of swing arm 2; Holder 7 is installed with on the top of main support rod 1, holder 7 is installed with horizontal connecting plate 8, horizontal connecting plate 8 and swing arm 2 parallel, tension pick-up 9 is installed with in the bottom of horizontal connecting plate 8, the upper surface of moment drive link and the flexible member of tension pick-up 9 contact, and the signal output part of tension pick-up 9 and the signal input part of signal conversion module are electrically connected by cable.Like this, by main support rod 1, moment converting member 5, swing arm 2, ball float 3, moment drive link, tension pick-up 9 and circuit board with the use of, realize the object that fluid density on-line continuous is measured, be applicable to the continuous on-line measurement of drilling fluid density in oil drilling process; Relatively existing liquid density measurement device overcomes pressure measuring module and is subject to sand setting and buries, and affects measurement accuracy and the defect such as hydraulic pressure diaphragm, the fragile sensitive for damages of pipeline; There is safe and reliable, easy for installation and non-damageable feature, improve the accuracy of measurement, extend serviceable life.Main support rod 1, ball float 3, housing 4, swing arm 2 and moment drive link all adopt corrosion-resistant stainless steel material, meet ExdIIBT6 explosion-proof criteria, and degree of protection is IP66, are applicable to the dangerous rugged surroundings of situ of drilling well.During use, the signal input part of the signal output part of signal conversion module and outside display is electrically connected by cable.The present invention's application Archimedes principle, the volume that the density of the buoyancy size that object is subject in a liquid and liquid and object arrange liquid is directly proportional, the buoyancy that the object (ball float) immersed in liquid is subject to converts the pressure to metal strain sensor to by moment transformational structure, thus fluid density is converted to the electric signal of tension pick-up 9; On-line continuous can measure the dynamic change of fluid density.The operating voltage of tension pick-up 9 is 24V direct supply, and signal exports 4mA to 20mA, highly versatile.
according to actual needs, aforesaid liquid density on-line measurement device can be made further optimization and/or improvements:
as shown in Figure 1, moment drive link comprises moment drive link 10 and lower moment drive link 11; Upper moment drive link 10 and lower moment drive link 11 are linked together by buffering pipe nipple 12, and together with the lower end of lower moment drive link 11 is vertically connected on the middle part of swing arm 2, the upper surface of upper moment drive link 10 and the flexible member of tension pick-up 9 contact.Like this, buffering pipe nipple 12 adopts corrosion-resistant stainless steel material, and meet ExdIIBT6 explosion-proof criteria, degree of protection is IP66, is applicable to the dangerous rugged surroundings of situ of drilling well.Buffering pipe nipple 12 is convenient to play better buffering effect.The flexible member of tension pick-up 9 can be resistance strain gage.
as shown in Figure 1, the upper surface, middle part of swing arm 2 is provided with the second mounting groove 13, the lower end of lower moment drive link 11 is vertically mounted in the second mounting groove 13 by axle.Like this, the second mounting groove 13 is convenient to the connection of lower moment drive link 11 and swing arm 2.
as required, tension pick-up 9 is explosion-proof tension pick-up, and housing 4 is anti-riot seal casinghousing, and cable is anti-riot cable, and housing 4 is respectively arranged with entrance hole and wire hole, and the entrance hole and wire hole of housing 4 are installed with terminals 14 respectively; Cable is electrically connected with the signal output part of tension pick-up 9 and the signal input part of signal conversion module through the terminals 14 on entrance hole.Like this, tension pick-up 9 is explosion-proof tension pick-up, and housing 4 is anti-riot seal casinghousing, and cable is anti-riot cable, meets ExdIIBT6 explosion-proof criteria, and degree of protection is IP66, is applicable to the dangerous rugged surroundings of situ of drilling well.
as required, moment converting member 5 is sealing bearing.Like this, moment converting member 5 adopts airtight bearing to meet ExdIIBT6 explosion-proof criteria, and degree of protection is IP66, is applicable to the dangerous rugged surroundings of situ of drilling well.
as required, ball float 3 is hollow float.
above technical characteristic constitutes most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. a liquid density on-line measurement device, is characterized in that comprising main support rod, swing arm, ball float and moment drive link; Housing is installed with on the top of main support rod, at housing internal fixtion, circuit board is installed, be installed with signal conversion module on circuit boards, moment converting member is installed with in the bottom of main support rod, the outer upper end face of moment converting member is provided with the first mounting groove of vertical direction, one end of swing arm is arranged in the first mounting groove by axle, and the other end of swing arm is installed with ball float, together with the lower end of moment drive link is vertically connected on the middle part of swing arm; Holder is installed with on the top of main support rod, holder is installed with horizontal connecting plate, horizontal connecting plate and swing arm parallel, tension pick-up is installed with in the bottom of horizontal connecting plate, the upper surface of moment drive link and the flexible member of tension pick-up contact, and the signal output part of tension pick-up and the signal input part of signal conversion module are electrically connected by cable.
2. liquid density on-line measurement device according to claim 1, is characterized in that moment drive link comprises moment drive link and lower moment drive link; Upper moment drive link and lower moment drive link are linked together by buffering pipe nipple, and together with the lower lower end of moment drive link is vertically connected on the middle part of swing arm, the upper upper surface of moment drive link and the flexible member of tension pick-up contact.
3. liquid density on-line measurement device according to claim 1 and 2, the upper surface, middle part that it is characterized in that swing arm is provided with the second mounting groove, and the lower end of lower moment drive link is vertically mounted in the second mounting groove by axle.
4. liquid density on-line measurement device according to claim 1 and 2, it is characterized in that tension pick-up is explosion-proof tension pick-up, housing is anti-riot seal casinghousing, cable is anti-riot cable, housing is respectively arranged with entrance hole and wire hole, the entrance hole and wire hole of housing are installed with terminals respectively; Cable is electrically connected through the terminals on entrance hole and the signal output part of tension pick-up and the signal input part of signal conversion module.
5. liquid density on-line measurement device according to claim 3, it is characterized in that tension pick-up is explosion-proof tension pick-up, housing is anti-riot seal casinghousing, cable is anti-riot cable, housing is respectively arranged with entrance hole and wire hole, the entrance hole and wire hole of housing are installed with terminals respectively; Cable is electrically connected through the terminals on entrance hole and the signal output part of tension pick-up and the signal input part of signal conversion module.
6. the liquid density on-line measurement device according to claim 1 or 2 or 5, is characterized in that moment converting member is sealing bearing.
7. liquid density on-line measurement device according to claim 3, is characterized in that moment converting member is sealing bearing.
8. liquid density on-line measurement device according to claim 4, is characterized in that moment converting member is sealing bearing.
9. the liquid density on-line measurement device according to claim 1 or 2 or 5 or 7 or 8, is characterized in that ball float is hollow float.
10. the liquid density on-line measurement device according to claim 3 or 4 or 6, is characterized in that ball float 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 |
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| 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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| CN105300835A true CN105300835A (en) | 2016-02-03 |
| CN105300835B CN105300835B (en) | 2018-05-29 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294728A (en) * | 1993-04-08 | 1994-10-21 | Unisia Jecs Corp | Liquid density measuring equipment |
| CN201203563Y (en) * | 2008-04-30 | 2009-03-04 | 马兆辉 | Fluid loop-closed type integrated on-line liquid density transmitter |
| CN101819123A (en) * | 2010-04-19 | 2010-09-01 | 北京矿冶研究总院 | Ore pulp concentration meter based on buoyancy measurement principle |
| WO2013048319A1 (en) * | 2011-09-27 | 2013-04-04 | Scania Cv Ab | Measuring system for measurement of the density of a liquid and its level in a container |
| 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 |
-
2015
- 2015-11-19 CN CN201510802969.5A patent/CN105300835B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294728A (en) * | 1993-04-08 | 1994-10-21 | Unisia Jecs Corp | Liquid density measuring equipment |
| CN201203563Y (en) * | 2008-04-30 | 2009-03-04 | 马兆辉 | Fluid loop-closed type integrated on-line liquid density transmitter |
| CN101819123A (en) * | 2010-04-19 | 2010-09-01 | 北京矿冶研究总院 | Ore pulp concentration meter based on buoyancy measurement principle |
| WO2013048319A1 (en) * | 2011-09-27 | 2013-04-04 | Scania Cv Ab | Measuring system for measurement of the density of a liquid and its level in a container |
| 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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| CN105300835B (en) | 2018-05-29 |
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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. |