CN203657864U - Coil fly-wire structure of Coriolis mass flow meter - Google Patents
Coil fly-wire structure of Coriolis mass flow meter Download PDFInfo
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- CN203657864U CN203657864U CN201420008743.9U CN201420008743U CN203657864U CN 203657864 U CN203657864 U CN 203657864U CN 201420008743 U CN201420008743 U CN 201420008743U CN 203657864 U CN203657864 U CN 203657864U
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- 238000012360 testing method Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 13
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- 238000001514 detection method Methods 0.000 abstract 2
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- 239000003292 glue Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
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Abstract
The utility model discloses a coil fly-wire structure of a Coriolis mass flow meter and belongs to the CNG (Compressed Natural Gas) technical field. The Coriolis mass flow meter comprises double rows of measuring pipes which are located in a sensor portion; two ends of the double rows of measuring pipes are connected with a liquid inlet and a liquid outlet of a body respectively; the middle of the double rows of measuring pipes is provided with a protruding portion which protrudes outward relative to the body; the position of a vertex of the protruding portion which is formed on the double rows of measuring pipes is provided with a driving coil; two detection coils are arranged in the middles of inclined pipes which are arranged on the bilateral sides of the vertex of the protruding portion formed on the double rows of measuring pipes respectively; a lead of the driving coil and leads of the detection coils are connected onto a circuit board which is located on the body portion located under the protruding portion. According to the coil fly-wire structure of the Coriolis mass flow meter, the quality of an enameled wire is not attached to a test pipe and accordingly the test accuracy of the test pipe cannot be affected and meanwhile two ends of the enameled wire are firmly welded and accordingly the falling-off is avoided and the working stability of the Coriolis mass flow meter is improved.
Description
Technical field
The utility model relates to CNG mass flowmeter, particularly a kind of coriolis mass flowmeters.
Background technology
Coriolis mass flowmeters is a kind of novel instrument of directly and critically measuring fluid mass flow, if when pipe synchronous vibration therein, in fluid ingress pipe, make it along flowing forward in pipe, pipe will force fluid up-down vibration therewith, fluid is in order to revolt this forced vibration, can be to reacting force vertical with its flow direction of pipe, under this effect that is called Coriolis effect power, the vibrations of pipe are asynchronous, there is difference in the time order and function chamber of commerce of vibration in entrance pipe and outlet section pipe, (difference is because entrance and outlet section direction of flow are contrary), it is poor that this is called phase time.This species diversity is directly proportional to the size of the fluid mass flow that flows through pipe; If can detect the size of this time difference by circuit, just the size of mass rate can be given and determined.This flowmeter is known as coriolis mass flowmeters, it and the size that is not both at present in the world the quality that its surveys in the maximum of tens kinds of conventional volumeters of use, and the unit of use is kg/min.With the flowmeter of quality (as kilogram) office than accurate and constant with the volumeter of volume (as liter or cubic meter) office.Coriolis mass flowmeters has accuracy, repeatability, stability, simultaneously in fluid passage, is provided with choked flow element and movable member, thereby its good reliability, and long service life can also be measured the flow of high viscosity fluid and gases at high pressure.At industrial sectors such as oil, chemical industry, metallurgy, building materials, papermaking, medicine, food, bioengineering, the energy, space flight, its application is also more and more extensive.
Wherein, coriolis mass flowmeters belongs to CNG filling machine metering outfit.Along with the high speed development of CNG technology, higher to the functional requirement of CNG aerating equipment, therefore determined the constantly characteristic of consummating function of CNG aerating equipment.At present, the wiring mode that the inner cabling of CNG flowmeter uses.This winding displacement mode is with glue, enameled wire to be bonded on measuring tube tube wall, and enameled wire is along tube wall place in circuit plate again.Adopt this winding displacement mode can affect measuring accuracy and the stability of flowmeter.1. flowmeter survey flow is to realize by measuring the suffered Coriolis force of measuring tube, the winding displacement mode of wiring has appended to the quality of enameled wire on measuring tube, the Coriolis force of measuring on measuring tube so just has deviation, causes measurement data to have deviation; 2. enameled wire sticks with glue on measuring tube tube wall, and when use, glue has the possibility of coming off, and can will change to measuring tube quality, thereby affect the stability of flowmeter work when glue comes off.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of simple in structure, easy and simple to handle, the coil fly line structure of coriolis mass flowmeters easy to use, wherein the quality of enameled wire is not attached on testing tube, can not affect the measuring accuracy of testing tube; Enameled wire two ends firm welding, there will not be obscission, improves the stability of flowmeter work.
The technical solution adopted in the utility model is as follows:
The coil fly line structure of coriolis mass flowmeters of the present utility model, in described flowmeter, include the double measuring tube that is positioned at Sensor section, the two ends of described double measuring tube are connected on body inlet and liquid outlet, the middle part of described double measuring tube is with respect to the cambered outwards lug boss of body, the summit place of described double measuring tube projection portion is provided with drive coil, on described double measuring tube lug boss, the tipping tube of both sides, summit middle part is respectively equipped with magnetic test coil, the lead-in wire of described drive coil and the lead-in wire of magnetic test coil are connected on circuit board, described circuit board is positioned on the body of lug boss below.
Owing to having adopted said structure, the two ends of double measuring tube bend with respect to middle part, or the middle part convex formation lug boss of double measuring tube, and this lug boss forms the both sides that are similar to triangle cast; Coil brace is fixed on double measuring tube equally, the determining positions of drive coil support the vibration stimulus position of double measuring tube, wherein be provided with coil brace at the summit place of this lug boss, can be used for placing drive coil, for the vibration of whole double measuring tube provides power, and be tipping tube in these both sides, summit, on the middle part of this tipping tube, be installed on coil brace, can be used for laying magnetic test coil, magnetic test coil needs mounting magnetic steel and magnetic test coil, measure phase difference, draws mass rate; Adopt the two-tube susceptibility that reduces external shock simultaneously, easily realize the measurement of phase differential.The determining positions of fixed block the vibration frequency of double measuring tube vibrations ends, therefore fixed block is located to the both sides of bending place, and by fixed block and the welding of double measuring tube, is played the effect of fixing two ends.Coriolis mass flowmeters of the present utility model, by the double measuring tube of the thin-walled of fixing, the double measuring tube resonance or approach the excitation of resonance in addition in center.Like this, if measuring section is regarded as to two sections that separate from center, these two sections are just equivalent to rotate back and forth motion around two ends point of fixity respectively so.In the time that fluid flows to the other end from one end, just produce Coriolis force, the distortion that makes double measuring tube mid point front and back two halves section produce opposite direction, and then produce phase differential; Measure phase differential with electromagnetic principle, just can calculate by transmitter the data such as quality, flow, density; Wherein the lead-in wire of drive coil and the lead-in wire of magnetic test coil all adopt the mode of fly line to be welded on circuit board, can effectively avoid lead-in wire to be attached on testing tube, can not have influence on measuring accuracy, thereby guarantee that whole flowmeter is to CNG measuring accuracy; Meanwhile, the two ends firm welding of lead-in wire, there will not be break-off, improves the job stability of flowmeter.
The coil fly line structure of coriolis mass flowmeters of the present utility model, the outer wall of described double measuring tube entrance point is provided with temperature sensor, the lead-in wire of described temperature sensor is wrapped in insulation tube, described insulation tube is walked spool and is fixed on body, insulated wire is caused circuit board by described insulation tube, and described insulated wire adopts fly line mode to be connected on circuit board.
Because coriolis mass flowmeters can be applied in various different operating temperature, its measured value has certain deviation, therefore just needs temperature value as a correction parameter; Carry out temperature survey Gu a thermometer is set in the end of double measuring tube, and be passed to transmitter part.Due to double measuring tube long-term delivery CNG, make the wall temperature of double measuring tube close with the temperature value of CNG, therefore temperature sensor can be by detecting the temperature value on double measuring tube, thereby the approximate temperature value of measuring CNG, and in the lead-in wire of this temperature sensor is wrapped in by insulated wire in the time buying, for fear of multiple insulated wire magnetic test coils, all insulated wires are wrapped in insulation tube, insulation tube is fixed on away on spool, make it prolong body surface and carry out cabling, this insulation tube can cause insulated wire by circuit board, and enameled wire in insulated wire adopts the mode of fly line to be welded on circuit board, make its connection there will not be obscission, improve the stability of flowmeter work.
The coil fly line structure of coriolis mass flowmeters of the present utility model, described body is provided with binding post, and described binding post passes from circuit board, and the lead-in wire of described drive coil is bundled on this binding post by adhesive tape.
For fear of long its vibrating effect that affects of lead-in wire of drive coil, adopt adhesive tape to be bundled on binding post at the lead-in wire middle part of drive coil, be the reserved enough length of vibration of drive coil simultaneously, avoid the vibration of drive coil to cause interference.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, the coil fly line structure of coriolis mass flowmeters of the present utility model, simple in structure, easy and simple to handle, easy to use, with low cost, applied widely, is applicable to applying;
2, the coil fly line structure of coriolis mass flowmeters of the present utility model, the quality of enameled wire is not attached on testing tube, can not affect the measuring accuracy of testing tube; Enameled wire two ends firm welding, there will not be obscission, improves the stability of flowmeter work.
Brief description of the drawings
Fig. 1 is the inner structure schematic diagram of coriolis mass flowmeters in the utility model;
Fig. 2 is the partial top view of Fig. 1.
Mark in figure: 1,7-magnetic test coil, 2-enameled wire, 3-drive coil, the double measuring tube of 4-, the dark brown adhesive tape of 5-, 6-binding post, 8-circuit board, 9-temperature sensor, 10-body, 11-walk spool, 12-insulation tube.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As depicted in figs. 1 and 2, the coil fly line structure of coriolis mass flowmeters of the present utility model, in described flowmeter, include the double measuring tube 4 that is positioned at Sensor section, the two ends of described double measuring tube 4 are connected on body 10 inlets and liquid outlet, the middle part of described double measuring tube 4 is with respect to the cambered outwards lug boss of body 10, the summit place of described double measuring tube 4 projection portions is provided with drive coil 3, on described double measuring tube 4 lug bosses, the tipping tube of both sides, summit middle part is respectively equipped with magnetic test coil, the lead-in wire of described drive coil 3 and the lead-in wire of magnetic test coil are connected on circuit board 8, described circuit board 8 is positioned on the body 10 of lug boss below, described body 10 is provided with binding post 6, described binding post 6 passes from circuit board 8, the lead-in wire of described drive coil 3 is bundled on this binding post 6 by adhesive tape.The outer wall of wherein said double measuring tube 4 one end is provided with temperature sensor 9, insulated wire on described temperature sensor 9 is wrapped in insulation tube 12, described insulation tube 12 is walked spool 11 and is fixed on body 100, insulated wire is caused circuit board 8 by described insulation tube 12, and described insulated wire is connected in fly line mode and is connected on circuit board 8.
In the utility model, the two ends of double measuring tube bend with respect to middle part, or the middle part convex formation lug boss of double measuring tube, and this lug boss forms the both sides that are similar to triangle cast; Coil brace is fixed on double measuring tube equally, the determining positions of drive coil support the vibration stimulus position of double measuring tube, wherein be provided with coil brace at the summit place of this lug boss, can be used for placing drive coil, for the vibration of whole double measuring tube provides power, and be tipping tube in these both sides, summit, on the middle part of this tipping tube, be installed on coil brace, can be used for laying magnetic test coil, magnetic test coil needs mounting magnetic steel and magnetic test coil, measure phase difference, draws mass rate; Adopt the two-tube susceptibility that reduces external shock simultaneously, easily realize the measurement of phase differential.The determining positions of fixed block the vibration frequency of double measuring tube vibrations ends, therefore fixed block is located to the both sides of bending place, and by fixed block and the welding of double measuring tube, is played the effect of fixing two ends.Coriolis mass flowmeters of the present utility model, by the double measuring tube of the thin-walled of fixing, the double measuring tube resonance or approach the excitation of resonance in addition in center.Like this, if measuring section is regarded as to two sections that separate from center, these two sections are just equivalent to rotate back and forth motion around two ends point of fixity respectively so.In the time that fluid flows to the other end from one end, just produce Coriolis force, the distortion that makes double measuring tube mid point front and back two halves section produce opposite direction, and then produce phase differential; Measure phase differential with electromagnetic principle, just can calculate by transmitter the data such as quality, flow, density; Wherein the lead-in wire of drive coil and the lead-in wire of magnetic test coil all adopt the mode of fly line to be welded on circuit board, can effectively avoid lead-in wire to be attached on testing tube, can not have influence on measuring accuracy, thereby guarantee that whole flowmeter is to CNG measuring accuracy; Meanwhile, the two ends firm welding of lead-in wire, there will not be break-off, improves the job stability of flowmeter.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. the coil fly line structure of a coriolis mass flowmeters, it is characterized in that: in described flowmeter, include the double measuring tube (4) that is positioned at Sensor section, the two ends of described double measuring tube (4) are connected on body (10) inlet and liquid outlet, the middle part of described double measuring tube (4) is with respect to the cambered outwards lug boss of body (10), the summit place of described double measuring tube (4) projection portion is provided with drive coil (3), on described double measuring tube (4) lug boss, the tipping tube of both sides, summit middle part is respectively equipped with magnetic test coil, the lead-in wire of described drive coil (3) and the lead-in wire of magnetic test coil are connected on circuit board (8), described circuit board (8) is positioned on the body (10) of lug boss below.
2. the coil fly line structure of coriolis mass flowmeters as claimed in claim 1, it is characterized in that: the outer wall of described double measuring tube (4) entrance point is provided with temperature sensor (9), the lead-in wire of described temperature sensor (9) is wrapped in insulation tube (12), described insulation tube (12) is walked spool (11) and is fixed on body (10), insulated wire is caused circuit board (8) by described insulation tube (12), and described insulated wire adopts fly line mode to be connected on circuit board (8).
3. the coil fly line structure of coriolis mass flowmeters as claimed in claim 2, it is characterized in that: described body (10) is provided with binding post (6), described binding post (6) passes from circuit board (8), and the lead-in wire of described drive coil (3) is bundled on this binding post (6) by adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008743.9U CN203657864U (en) | 2014-01-07 | 2014-01-07 | Coil fly-wire structure of Coriolis mass flow meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008743.9U CN203657864U (en) | 2014-01-07 | 2014-01-07 | Coil fly-wire structure of Coriolis mass flow meter |
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| Publication Number | Publication Date |
|---|---|
| CN203657864U true CN203657864U (en) | 2014-06-18 |
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| CN201420008743.9U Expired - Lifetime CN203657864U (en) | 2014-01-07 | 2014-01-07 | Coil fly-wire structure of Coriolis mass flow meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296815A (en) * | 2014-10-24 | 2015-01-21 | 成都安迪生测量有限公司 | High-precision liquid flow meter |
| CN104316123A (en) * | 2014-10-24 | 2015-01-28 | 成都安迪生测量有限公司 | High-airtightness liquid flowmeter |
| CN111670343A (en) * | 2018-02-02 | 2020-09-15 | 恩德斯+豪斯流量技术股份有限公司 | Coriolis measuring transducer and coriolis measuring device |
-
2014
- 2014-01-07 CN CN201420008743.9U patent/CN203657864U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296815A (en) * | 2014-10-24 | 2015-01-21 | 成都安迪生测量有限公司 | High-precision liquid flow meter |
| CN104316123A (en) * | 2014-10-24 | 2015-01-28 | 成都安迪生测量有限公司 | High-airtightness liquid flowmeter |
| CN111670343A (en) * | 2018-02-02 | 2020-09-15 | 恩德斯+豪斯流量技术股份有限公司 | Coriolis measuring transducer and coriolis measuring device |
| CN111670343B (en) * | 2018-02-02 | 2022-07-22 | 恩德斯+豪斯流量技术股份有限公司 | Coriolis measuring transducer and coriolis measuring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |