CN105424113B - A kind of coriolis mass flowmeters and wiring method of spiral wiring - Google Patents
A kind of coriolis mass flowmeters and wiring method of spiral wiring Download PDFInfo
- Publication number
- CN105424113B CN105424113B CN201510948232.4A CN201510948232A CN105424113B CN 105424113 B CN105424113 B CN 105424113B CN 201510948232 A CN201510948232 A CN 201510948232A CN 105424113 B CN105424113 B CN 105424113B
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- Prior art keywords
- lead
- measurement pipe
- out wire
- shaped measurement
- shaped
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses the coriolis mass flowmeters and wiring method of a kind of wiring of spiral, are related to measuring instrument, technical key point includes：Pedestal, U-shaped measurement pipe, distance plate, signal transducer, driving sensor and lead-out wire summarize mouth, two roots of the U-shaped measurement pipe are fixedly connected across distance plate with pedestal, the signal transducer and driving sensor are fixed in U-shaped measurement pipe, signal transducer and driving sensor all have signal lead-out wire, each bars lead-out wire summarizes mouth across the lead-out wire, the lead-out wire summarizes mouth and is located on pedestal, each signal line is wrapped in the form of spiral cabling in the U-shaped measurement pipe, and is fixed by viscose glue between signal wire and U-shaped measurement pipe.
Description
Technical field
The present invention relates to measuring instrument, especially a kind of mass flowmenter based on Coriolis principle.
Background technology
The exploitation of mass flowmenter based on Coriolis principle starts from the early 1950s, until the mid-1970s,
Resonant mode coriolis mass flowmeters are developed by Micro Motion companies of the U.S. first, and special in application in 1982
Profit pushes it against international market.The middle and later periods eighties, instrument manufacturer of various countries and university cooperation are all in succession to this novel matter
Amount flowmeter has carried out research and development.By the research and development of decades, people develop the Coriolis of various shapes
Mass flowmenter（Coriolis Mass Flowmeter, abbreviation CMF）, there has also been raisings largely for measurement performance.
Coriolis mass flowmeters are typically a certain mode of oscillation using sensor, make it in the form of closed-loop control
It is operated in resonance state, when measured flux passes through measurement pipe, Coriolis force will be generated, to make measurement pipe twist,
And then generate phase difference.By the principle of coriolis mass flowmeters it is found that obtain higher measurement accuracy, sensor shakes
Dynamic state must be stablized, and both each component part of measurement pipe will be connected firmly as much as possible, form a rigid body.If in measurement pipe
A certain component do not connect securely, then it is that flexibility acts in measurement pipe to be equivalent to this members, this will seriously affect survey
The stability of vibration of buret, reduces the quality of vibration factor of sensor, and generates significant null offset.
Conventional coriolis mass flowmeters sensor is to realize exciting and picking up signal using magnetoelectric sensor,
Be connected with transmitter by the lead-out wire on coil, drive control and coriolis force phase difference to sensor are realized by this in terms of
It calculates.Soft silver jacketed wire material is usually used in lead-out wire, and vibrating tube is adhered under the premise of ignoring its rigidity.
The lead-out wire wire laying mode of existing use is divided into two kinds, one is being laid with along measurement pipe length direction, and is measuring
The root of tube vibration part detaches, as shown in Figure 1.Another kind is that lead-out wire is hanging, as shown in Fig. 2, above two wiring side
The characteristics of formula is easy to operate, and production efficiency is high.
But above two wire laying mode all existing defects.Concrete reason is as follows：
For the first wire laying mode, with continued reference to Fig. 1, due to measurement pipe, the line of silver jacketed wire and adhesive three expand
Coefficient is different, and when temperature changes, the linkage interface between three will produce shearing force, when temperature change is larger, three
The stripping of irreversibility can occur for person.Once peeling occurs, sensor lapses, and the extraction that first way is laid
Line is placed exactly in the maximum direction of three's line dilatancy, therefore easily peeling-off.In addition, in order to ensure the bonding of lead-out wire
Intensity and vibration-resistant property generally require to coat more adhesive, reduce the performance of sensor.
For second of wire laying mode, with continued reference to Fig. 2, although lead-out wire is not pasted in measurement pipe, lead-out wire
Shape in space will determine its rigidity and its amount of force to measuring tube vibration, and can be with the mounting means of sensor
（For example sensor, under positive and negative two kinds of mounting means, lead-out wire is influenced by the opposite gravity in direction, certainly will change its space shape
Shape）And operating temperature（The variation of operating temperature will change the elasticity modulus of lead-out wire itself）And change, this is all seriously affected
The measurement accuracy of coriolis mass flowmeters.
Invention content
In order to solve drawbacks described above, the present invention proposes coriolis mass flowmeters and its wiring of a kind of spiral wiring
Method.
Wherein, the coriolis mass flowmeters of spiral wiring provided by the invention include pedestal, U-shaped measurement pipe, spacing
Plate, signal transducer, driving sensor and lead-out wire summarize mouth, and two roots of the U-shaped measurement pipe pass through distance plate and bottom
Seat is fixedly connected, and the signal transducer and driving sensor are fixed in U-shaped measurement pipe, signal transducer and driving sensor
Signal lead-out wire is all had, each bars lead-out wire summarizes mouth across the lead-out wire, and the lead-out wire summarizes mouth and is located at pedestal
On, each signal line is wrapped in the form of spiral cabling in the U-shaped measurement pipe, and signal wire and U-shaped measurement pipe it
Between fixed by viscose glue.
Preferably, the screw pitch that the lead-out wire is formed gradually shortens from the top of U-shaped measurement pipe toward root.
The wiring method of lead on coriolis mass flowmeters provided by the invention, including：
Step 1：The lead-out wire of sensor in U-shaped measurement pipe is initially wrapped around U-shaped measurement pipe from the top of U-shaped measurement pipe
On until reaching the root of U-shaped measurement pipe；
Step 2：Apply certain pulling force in the free end of lead-out wire, is allowed to be wrapped in U-shaped measurement pipe with tight state
On；
Step 3：Viscose glue, which is coated on lead-out wire, makes it be fixed in U-shaped measurement pipe；
Step 4：Mouth is summarized into the free end of lead-out wire across lead-out wire；The lead-out wire summarizes mouth and is located on pedestal.
Preferably, the step 1 include by the lead-out wire of sensor in U-shaped measurement pipe since at the top of U-shaped measurement pipe
It is wrapped in U-shaped measurement pipe until reaching the root of U-shaped measurement pipe, and adjusts the screw pitch of lead-out wire formation, make screw pitch from U-shaped survey
The top of buret gradually shortens toward root.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. the lead-out wire in the present invention be it is tight be wrapped in U-shaped measurement pipe, this allow for lead-out wire itself to measure
Pipe generates a cladding power, and then significantly reduces the usage amount of adhesive, reduces lead-out wire and viscose glue to U-shaped measurement tube vibration
Influence.
2. since the winding pitch of lead-out wire is to be incremented by gradual change, at the less position of U-shaped measurement pipe vibration deformation, spiral
The screw pitch of line is larger, advantageously reduces the number of turns of winding in this way；And the position larger in U-shaped measurement pipe vibration deformation, helix
Screw pitch be set as very little, can make the direction of routing of lead-out wire vertical with radially proximating for measurement pipe in this way, to reduce draw
Outlet and adhesive improve the quality factor and zero stability of sensor to the stiffness effect of measurement pipe.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is in the prior art along the mass flowmenter structural schematic diagram of measurement pipe length direction wiring.
Fig. 2 is the mass flowmenter structural schematic diagram vacantly connected up in the prior art.
Fig. 3 is mass flowmenter structural schematic diagram of the present invention.
Fig. 4 is the deflection at the U-shaped each position of measurement pipe in vibration processes.
It is marked in figure：1 is pedestal；2 be U-shaped measurement pipe；3 summarize mouth for lead-out wire；4 be lead-out wire；5 pass for signal detection
Sensor；6 be driving sensor；7 be distance plate；8 be stem；21 is at the top of U-shaped measurement pipes；22 be U-shaped measurement pipe root.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
.
Coriolis mass flowmeters include pedestal 1, U-shaped measurement pipe 2, distance plate 7, signal transducer 5, driving sensor
6 and lead-out wire summarize mouth 3, two roots 22 of the U-shaped measurement pipe are fixedly connected across distance plate 7 with pedestal 1, the signal
Sensor 5 and driving sensor 6 are fixed in U-shaped measurement pipe, and signal transducer 5 and driving sensor 6 all have signal extraction
Line 4, each bars lead-out wire 4 summarize mouth 3 in order to connect subsequent transmitter across the lead-out wire.
The improvement of the present invention is to lay the lead-out wire 4 of sensor on mass flowmenter in the form of spiral cabling.
Referring to Fig. 3, each bars lead-out wire 4 is wrapped in the form of spiral cabling in the U-shaped measurement pipe 2, and
It is fixed by viscose glue between lead-out wire 4 and U-shaped measurement pipe 2.The lead-out wire summarizes mouth 3 and is located on pedestal.
Lead-out wire is wrapped in U-shaped measurement pipe according to spiral cabling mode, only needs a small amount of viscose glue that can reach good
Fixed effect, reduce viscose glue to it is U-shaped measure tube vibration influence.
Referring to Fig. 4, the top half of Fig. 4 is the side view of Fig. 3, and lower half portion is with the U-shaped measurement pipe shown in top half
Root 21 be that origin establishes abscissa, the corresponding abscissa at top 22 is maximum, and ordinate indicates deflection.It can be with from Fig. 4
Find out, in vibration processes, the deflection at the U-shaped each position of measurement pipe is different, in 22 deformation quantity of the top of U-shaped measurement pipe
Minimum, 21 deflection of root closer to U-shaped measurement pipe are bigger.For this purpose, in a preferred embodiment, the extraction is linear
At screw pitch gradually shorten from the top of U-shaped measurement pipe toward root.Lead-out wire winding in other words at the top of U-shaped measurement pipe is dilute
It dredges, it is more intensive closer to the winding of root lead-out wire.The stiffness effect of lead-out wire and adhesive to measurement pipe can be reduced in this way, improved
The quality factor and zero stability of sensor.
The wiring method of lead on coriolis mass flowmeters provided by the invention, including：
Step 1：The lead-out wire of sensor in U-shaped measurement pipe is initially wrapped around U-shaped measurement pipe from the top of U-shaped measurement pipe
On until reaching the root of U-shaped measurement pipe.
Step 2：Apply certain pulling force in the free end of lead-out wire, is allowed to be wrapped in U-shaped measurement pipe with tight state
On；The free end of lead-out wire is for one end that lead-out wire is connect with sensor herein.
Step 3：Viscose glue, which is coated on lead-out wire, makes it be fixed in U-shaped measurement pipe.
Step 4：Mouth is summarized into the free end of lead-out wire across lead-out wire.
In a preferred embodiment of the method, the step 1 further includes the screw pitch for adjusting lead-out wire and being formed, and makes screw pitch certainly
The top of U-shaped measurement pipe gradually shortens toward root.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (4)
1. a kind of coriolis mass flowmeters of spiral wiring, including pedestal, U-shaped measurement pipe, distance plate, sensor and extraction
Two roots of the total mouth of the congruence, the U-shaped measurement pipe are fixedly connected across distance plate with pedestal, and the sensor is fixed on U-shaped
In measurement pipe, sensor all has signal lead-out wire, and each bars lead-out wire summarizes mouth, the lead-out wire across the lead-out wire
Summarize mouth to be located on pedestal, which is characterized in that each signal line extraction is wrapped in the U-shaped survey in the form of spiral cabling
On buret, and fixed by viscose glue between signal lead-out wire and U-shaped measurement pipe.
2. a kind of coriolis mass flowmeters of spiral wiring according to claim 1, which is characterized in that the signal
The screw pitch that lead-out wire is formed gradually shortens from the top of U-shaped measurement pipe toward root.
3. the wiring method of lead on a kind of coriolis mass flowmeters, which is characterized in that including：
Step 1：The signal lead-out wire of sensor in U-shaped measurement pipe is initially wrapped around U-shaped measurement pipe from the top of U-shaped measurement pipe
On until reaching the root of U-shaped measurement pipe；
Step 2：Apply certain pulling force in the free end of signal lead-out wire, is allowed to be wrapped in U-shaped measurement pipe with tight state
On；
Step 3：Viscose glue, which is coated on signal lead-out wire, makes it be fixed in U-shaped measurement pipe；
Step 4：Mouth is summarized into the free end of signal lead-out wire across lead-out wire, the lead-out wire summarizes mouth and is located on pedestal.
4. the wiring method of lead on a kind of coriolis mass flowmeters according to claim 3, which is characterized in that institute
It includes being initially wrapped around the lead-out wire of sensor in U-shaped measurement pipe in U-shaped measurement pipe from the top of U-shaped measurement pipe to state step 1
Until reaching the root of U-shaped measurement pipe, and the screw pitch of lead-out wire formation is adjusted, makes screw pitch from the top of U-shaped measurement pipe toward root
Gradually shorten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510948232.4A CN105424113B (en) | 2015-12-17 | 2015-12-17 | A kind of coriolis mass flowmeters and wiring method of spiral wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510948232.4A CN105424113B (en) | 2015-12-17 | 2015-12-17 | A kind of coriolis mass flowmeters and wiring method of spiral wiring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105424113A CN105424113A (en) | 2016-03-23 |
| CN105424113B true CN105424113B (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510948232.4A Expired - Fee Related CN105424113B (en) | 2015-12-17 | 2015-12-17 | A kind of coriolis mass flowmeters and wiring method of spiral wiring |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109990856A (en) * | 2018-01-03 | 2019-07-09 | 成都瑞帆智达科技有限公司 | Lead fixing structure, resonant transducer and measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5824894A (en) * | 1997-05-07 | 1998-10-20 | Mks Instruments, Inc. | Mass flowmeter and laminar flow elements for use therein |
| CN1231029A (en) * | 1996-09-20 | 1999-10-06 | 微动公司 | Coriolis flowmeters using fiber and anisotropic material to control selected vibrational flowmeter characteristics |
| CN203657867U (en) * | 2014-01-07 | 2014-06-18 | 成都安迪生测量有限公司 | Fly wire wiring structure of Coriolis mass flow meter |
| CN103874909A (en) * | 2011-10-28 | 2014-06-18 | 恩德斯+豪斯流量技术股份有限公司 | Measuring transducer and measuring system comprising same |
| CN205388494U (en) * | 2015-12-17 | 2016-07-20 | 成都瑞帆智达科技有限公司 | Coriolis mass flow meter of spiral wiring |
-
2015
- 2015-12-17 CN CN201510948232.4A patent/CN105424113B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231029A (en) * | 1996-09-20 | 1999-10-06 | 微动公司 | Coriolis flowmeters using fiber and anisotropic material to control selected vibrational flowmeter characteristics |
| US5824894A (en) * | 1997-05-07 | 1998-10-20 | Mks Instruments, Inc. | Mass flowmeter and laminar flow elements for use therein |
| CN103874909A (en) * | 2011-10-28 | 2014-06-18 | 恩德斯+豪斯流量技术股份有限公司 | Measuring transducer and measuring system comprising same |
| CN203657867U (en) * | 2014-01-07 | 2014-06-18 | 成都安迪生测量有限公司 | Fly wire wiring structure of Coriolis mass flow meter |
| CN205388494U (en) * | 2015-12-17 | 2016-07-20 | 成都瑞帆智达科技有限公司 | Coriolis mass flow meter of spiral wiring |
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| CN105424113A (en) | 2016-03-23 |
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