CN102445242B - Method and device for measuring slurry flow rate by eddy current sensor - Google Patents
Method and device for measuring slurry flow rate by eddy current sensor Download PDFInfo
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- CN102445242B CN102445242B CN 201010553369 CN201010553369A CN102445242B CN 102445242 B CN102445242 B CN 102445242B CN 201010553369 CN201010553369 CN 201010553369 CN 201010553369 A CN201010553369 A CN 201010553369A CN 102445242 B CN102445242 B CN 102445242B
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- vortex sensor
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Abstract
The invention discloses a method and device for measuring a slurry flow rate by an eddy current sensor. The method is characterized in that: the eddy current sensor and a sector are arranged on a rotating shaft of a flow baffle plate of a slurry outlet, the eddy current sensor and the sector are vertical and are parallel with the rotating shaft, the sector is provided with an induction surface with a gradual-changing thickness, the flow baffle plate of the slurry outlet drives the sector to rotate, the eddy current sensor measures the openness of the flow baffle plate of the slurry outlet, corresponding to displacement of the induction surface, so as to figure out the flow of the slurry outlet. Compared with the prior art, the invention has the advantages of simple structure, convenience for use, high measurement precision, long service life and good reliability, thus operation safety is improved.
Description
Technical field
The present invention relates to the surveying instrument technical field, specifically a kind of method and device thereof of the electric vortex sensor measuring mud flow rate for petroleum drilling.
Background technology
At present, the method that generally all adopts baffle plate to change when petroleum drilling is measured the flow of mud outlet, the method that this mud-outlet-flow baffle plate changes, generally adopt the potentiometer that is fixed on the baffle plate to measure, resistance change according to potentiometer, record the variation of baffle plate, thus and then measurement rate of discharge.But because this kind method is direct measurement, the potentiometer rotation is frequent, and because vibration causes the damage of measuring inaccurate and potentiometer easily, influences safety work greatly.
Summary of the invention
The method and the device thereof that the objective of the invention is a kind of electric vortex sensor measuring mud flow rate of designing at the deficiencies in the prior art, it adopts, and current vortex sensor noncontact, high linearity and high resolution ground are accurate to be measured measured body and pops one's head in static and dynamic relative displacement variation between the end face, change the flow that records the mud outlet according to relative displacement then, apparatus structure is simple, convenient and practical, measure accurately long service life, reliability height.
The concrete technical scheme that realizes the object of the invention is: a kind of method of electric vortex sensor measuring mud flow rate, be characterized in that this method arranges current vortex sensor and secter pat in the rotating shaft of mud-outlet-flow baffle plate, current vortex sensor vertical with secter pat and with the shaft parallel setting, secter pat be provided with gradient thickness sensitive surface, the mud-outlet-flow baffle plate drives secter pat and rotates, and is recorded the flow that the amplitude of fluctuation computation of mud of the corresponding mud-outlet-flow baffle plate of displacement institute of sensitive surface exports according to current vortex sensor by computing machine.
A kind of electric vortex sensor measuring mud flow rate device, comprise the mud-outlet-flow baffle plate that is arranged on the support, support is the sheet frame of rectangle, be provided with rotating shaft in the sheet frame, it is characterized in that rotating shaft is fixedly installed on the frame of support with semi-girder, be fixed with the current vortex sensor with shaft parallel on its frame, the mud-outlet-flow baffle plate is fixedly installed in the rotating shaft, the fixedly connected secter pat of one end of rotating shaft, secter pat is provided with the sensitive surface of gradient thickness, current vortex sensor contacts with the sensitive surface induction of secter pat, the mud-outlet-flow baffle plate drives secter pat and rotates, and current vortex sensor transfers to computing machine with the current signal that records and carries out the flow that the data processing calculates the mud outlet.
Described sensitive surface is the covering of the fan of the even gradual change of thickness between featheredge and the webbing.
The present invention compared with prior art has simple in structure, and is easy to use, the measuring accuracy height, and long service life, good reliability has improved job safety greatly.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the invention process illustration.
Embodiment
Consult accompanying drawing 1 ~ accompanying drawing 2, method of the present invention is that the rotating shaft 4 at mud-outlet-flow baffle plate 3 arranges current vortex sensor 1 and secter pat 2, current vortex sensor 1 and secter pat 2 are vertical and be arranged in parallel with rotating shaft 4, secter pat 2 be provided with gradient thickness sensitive surface 6, mud-outlet-flow baffle plate 3 drives secter pats 2 and rotates, and is recorded the flow that the amplitude of fluctuation computation of mud of the corresponding mud-outlet-flow baffle plate 3 of displacement institute of sensitive surface 6 exports according to current vortex sensor 1 by computing machine 7.
The inventive system comprises the mud-outlet-flow baffle plate 3 that is arranged on the support 5, support 5 is the sheet frame of rectangle, be provided with rotating shaft 4 in the sheet frame, rotating shaft 4 is fixedly installed on the frame of support 5 with the supporting form of semi-girder, be fixed with the current vortex sensor 1 parallel with rotating shaft 4 on the frame of support 5, mud-outlet-flow baffle plate 3 is fixedly installed in the rotating shaft 4, the fixedly connected secter pat 2 of one end of rotating shaft 4, secter pat 2 is provided with the sensitive surface 6 of gradient thickness, sensitive surface 6 is the covering of the fan of the even gradual change of thickness between featheredge and the webbing, current vortex sensor 1 contacts with sensitive surface 6 inductions of secter pat 2, mud-outlet-flow baffle plate 3 is along with the variation of mud flow rate drives rotating shaft 4 and secter pat 2 rotations, can measure sensitive surface 6 change in displacement of secter pat 2 with the current vortex sensor 1 of rotating shaft 4 parallel installations, current vortex sensor 1 transfers to computing machine 7 with the current signal that records, and computing machine 7 is measured the amplitude of fluctuation of mud-outlet-flow baffle plate 3 and calculated mud-outlet-flow according to the change in displacement of sensitive surface 6.
The present invention installs and uses like this: device of the present invention is arranged on the rig floor well head to the base mouth of the built on stilts groove 8 of sealing of suction pit, and the swaying direction of mud-outlet-flow baffle plate 3 and drilling liquid flow are to consistent, to install with base with bolt then and fix, the mud stream of rig floor well head promotes 3 swings of mud-outlet-flow baffle plate when built on stilts groove 8 enters suction pit, the amplitude of its swing has reflected the relative variation of mud flow rate, by current vortex sensor 1 with the current signal that records, through on-the-spot junction box, signal wire, input computing machine 7 is handled behind isolated gate and the collecting unit, and computing machine 7 is according to current vortex sensor 1 noncontact, static state and the variation of relative displacement dynamically accurately calculate the flow of mud outlet between high linearity and high resolution ground accurate measurement measured body and the probe end face.
More than just the present invention is further illustrated, is not in order to limit this patent, all for the present invention's equivalence enforcement, all should be contained within the claim scope of this patent.
Claims (2)
1. the method for an electric vortex sensor measuring mud flow rate, it is characterized in that this method arranges current vortex sensor and secter pat in the rotating shaft of mud-outlet-flow baffle plate, current vortex sensor vertical with secter pat and with the shaft parallel setting, secter pat is provided with the sensitive surface of gradient thickness, sensitive surface is the covering of the fan of the even gradual change of thickness between featheredge and the webbing, the mud-outlet-flow baffle plate drives secter pat and rotates, and is recorded the flow that the amplitude of fluctuation computation of mud of the corresponding mud-outlet-flow baffle plate of displacement institute of sensitive surface exports according to current vortex sensor by computing machine.
2. device that adopts the method for the described electric vortex sensor measuring mud flow rate of claim 1, comprise the mud-outlet-flow baffle plate that is arranged on the support, support is the sheet frame of rectangle, be provided with rotating shaft in the sheet frame, it is characterized in that rotating shaft is fixedly installed on the frame of support with semi-girder, be fixed with the current vortex sensor with shaft parallel on its frame, the mud-outlet-flow baffle plate is fixedly installed in the rotating shaft, the fixedly connected secter pat of one end of rotating shaft, secter pat is provided with the sensitive surface of gradient thickness, current vortex sensor contacts with the sensitive surface induction of secter pat, the mud-outlet-flow baffle plate drives secter pat and rotates, and current vortex sensor transfers to computing machine with the current signal that records and carries out the flow that the data processing calculates the mud outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010553369 CN102445242B (en) | 2010-11-22 | 2010-11-22 | Method and device for measuring slurry flow rate by eddy current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010553369 CN102445242B (en) | 2010-11-22 | 2010-11-22 | Method and device for measuring slurry flow rate by eddy current sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102445242A CN102445242A (en) | 2012-05-09 |
| CN102445242B true CN102445242B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010553369 Active CN102445242B (en) | 2010-11-22 | 2010-11-22 | Method and device for measuring slurry flow rate by eddy current sensor |
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| CN (1) | CN102445242B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0141494A1 (en) * | 1983-08-18 | 1985-05-15 | Alexander Gavrilovic | Fluid parameter measurement system |
| CN2219488Y (en) * | 1994-12-21 | 1996-02-07 | 闻福义 | Flap-type flowmeter |
| CN2615643Y (en) * | 2003-05-08 | 2004-05-12 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Mud displacement measuring apparatus |
| CN101419085A (en) * | 2007-10-23 | 2009-04-29 | 章春根 | Sewerage constant flow detecting system |
-
2010
- 2010-11-22 CN CN 201010553369 patent/CN102445242B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0141494A1 (en) * | 1983-08-18 | 1985-05-15 | Alexander Gavrilovic | Fluid parameter measurement system |
| CN2219488Y (en) * | 1994-12-21 | 1996-02-07 | 闻福义 | Flap-type flowmeter |
| CN2615643Y (en) * | 2003-05-08 | 2004-05-12 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Mud displacement measuring apparatus |
| CN101419085A (en) * | 2007-10-23 | 2009-04-29 | 章春根 | Sewerage constant flow detecting system |
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| CN102445242A (en) | 2012-05-09 |
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