CN204043730U - Hall effect large diameter pipeline flowmeter - Google Patents
Hall effect large diameter pipeline flowmeter Download PDFInfo
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- CN204043730U CN204043730U CN201420433721.7U CN201420433721U CN204043730U CN 204043730 U CN204043730 U CN 204043730U CN 201420433721 U CN201420433721 U CN 201420433721U CN 204043730 U CN204043730 U CN 204043730U
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Abstract
The utility model discloses Hall effect large diameter pipeline flowmeter and measure large diameter pipeline method of flow, comprising large-diameter pipe and small-bore arm; The two ends of small-bore arm are arranged in large-diameter pipe; Hall flow sensor is provided with in small-bore arm.The principle that the utility model utilizes the flow value in the flow value in Hall effect principle and large-diameter pipe and small-bore arm proportional, use the pulse signal frequency numerical value of pipe with small pipe diameter flow sensor, Q=KF calculates large diameter pipeline flowmeter numerical value with the formula, the Accurate Calibration when flowmeter manufactures of the K value in formula; Thus achieve large diameter pipeline flowmeter manufacture easy, use material few, cost is low, volume is little, install and use advantage easy to maintenance, brings good Social benefit and economic benefit.
Description
Technical field
The utility model relates to pipeline flowmeter, particularly adopts Hall element to be used for the flowmeter of large diameter pipeline.
Background technology
In industry spot, the instrument measuring fluid flow is referred to as flowmeter or flowmeter.Flow instrument is one of large class instrument in process automation instrument and device; it is widely used in the national economy every field such as metallurgy, electric power, coal, chemical industry, oil, traffic, building, light textile, food, medicine, agricultural, environmental protection and people's daily life; it is development industrial and agricultural production; economize energy; improve production quality; increase economic efficiency and the important tool of management level, occupy an important position in national economy.In process automation instrument and device, flow instrument has two large functions: as the measuring instrument of automatic process control system system and total scale of measurement material quantity.
The flowmeter come into operation at present is more than 100 kinds.From different angles, flow is in respect of different sorting techniques.By the classification of conventional structural principle, flowmeter is divided into: volumeter, vane-wheel type flowmeter, differential pressure flowmeter (becoming pressure-decreasing type flowmeter), variable area formula flowmeter (waiting pressure-decreasing type flowmeter), momentum flowmeter, impulse type flowmeter, electromagnetic flowmeter, ultrasonic flow meter, fluid oscillating formula flowmeter, mass flowmeter etc.In addition, non-common various weir flowmeters, flume flow meter as being applicable to open channel flow measurement is also had; Be suitable for the inserting-type flowmeter of heavy caliber flow measurement; Measure the laminar flow flowmeter of laminar flow; Be suitable for the correlation method flowmeter that two-phase flow is measured; And laser method, nuclear magnetic resonance method flowmeter and multiple trace method, dilution gauging etc.Along with development and the practical application needs of science and technology, new flowmeter will continue to bring out, and the type of flowmeter will be more complete.
In existing technology, the flowmeter structure for large diameter pipeline is complicated, price is very expensive and maintenance not easily.
Also have a kind of flow sensor, although be not flowmeter, its principle of work is similar to flowmeter; It is by fluid impact magnet rotor, drive magnet rotor rotate, detected the induction of magnetic pole by Hall effect principle, produce impulse level export to controller, then by controller perceived flux and control other parts produce action; This flow sensor is all that small pipeline uses, the flow control of such as pot-type boiler.Along with the increase of pipe diameter, magnet rotor increases thereupon, and the volume of flow sensor also increases thereupon, not yet uses at present in large pipeline, and its huge volume creates and manufactures difficulty simultaneously, installation and maintenance inconvenience, the problem that cost is high.And this flow sensor can not be used for the accurate measurement of flow.
Utility model content
In order to solve the problem, the utility model provides a kind of pipe with small pipe diameter Hall flow sensor that utilizes to measure the equipment of big-diameter pipeline flow.The technical problems to be solved in the utility model utilizes pipe with small pipe diameter Hall flow sensor to measure big-diameter pipeline flow, thus can low cost, measure the flow of large diameter pipeline simply.In order to realize above-mentioned technical purpose, technical scheme of the present utility model is: Hall effect large diameter pipeline flowmeter, comprising: large-diameter pipe and small-bore arm; The two ends of described small-bore arm are arranged in large-diameter pipe; Hall flow sensor is provided with in described small-bore arm.
In such scheme, described small-bore arm is identical with the influent stream direction of heavy caliber liquid in pipe, and it is also identical that it goes out flow path direction.
In such scheme, described small-bore arm comprises horizontal inlet end, ascent stage, horizontal segment, descending branch and Horizontal Exit end; Described horizontal inlet end and Horizontal Exit end are arranged in described large-diameter pipe, and the described ascent stage is vertical with large-diameter pipe with descending branch and part passes large-diameter pipe, and described horizontal segment connection described ascent stage and descending branch pass the port of large-diameter pipe part; Described Hall flow sensor is arranged in horizontal segment.
In such scheme, described Hall flow sensor comprises the Hall element of runner, locating piece and energy induced field, and described Hall element is fixed on outside small-bore arm; Described locating piece limits described runner axial float in small-bore arm, and described runner is provided with permanent magnet, and described Hall element is provided with output signal line, and described output signal line is connected with external computing device; Described runner rotates with the flowing of tube fluid, and described runner often rotates the permanent magnet of a circle on it and described Hall element is responded to once, thus makes Hall element produce pulsatile once signal, and by output signal line output pulse signal.
The utility model also has the set-up mode of another kind of small-bore arm: be arranged at completely in large-diameter pipe by described small-bore arm; Be fixedly connected with inwall under large-diameter pipe by lower fulcrum bar bottom described small-bore arm, described small-bore arm top is fixedly connected with one end of upper arm, and the other end of described upper arm passes inwall on large-diameter pipe.
In such scheme, described Hall flow sensor comprises the Hall element of runner, locating piece and energy induced field, and described Hall element is fixed in the outside upper arm of small-bore arm; Described locating piece limits described runner axial float in small-bore arm, described runner is provided with permanent magnet, described Hall element is provided with output signal line, and described output signal line passes through and passes large-diameter pipe in upper arm, and described output signal line is connected with external computing device; Described runner rotates with the flowing of tube fluid, and described runner often rotates the permanent magnet of a circle on it and described Hall element is responded to once, thus makes Hall element produce pulsatile once signal, and by output signal line output pulse signal.
In such scheme, the flow in described large diameter pipeline is Q; The computing formula of described flow is Q=KF, and wherein, K is coefficient of flow, and F is the pulse signal frequency that described Hall element exports, and this pulse signal frequency is read by described external computing device; Described K is that Hall effect large diameter pipeline flowmeter is demarcated when dispatching from the factory.
In such scheme, the scaling method of described flow coefficient k is: Hall effect large diameter pipeline flowmeter is arranged on one with on the current testing conduit of accurate flowmeter and valve, the caliber of this current testing conduit is identical with the caliber of Hall effect large diameter pipeline flowmeter Large diameter pipe, output signal line is connected to the pulsed signal device of external computing device; Regulating water flow is carried out by control valve size, the reading of a series of accurate flowmeter can be obtained, this reading is the flow value of current testing conduit, i.e. Q value, and the pulse signal numerical value of Hall element corresponding Hall effect large diameter pipeline flowmeter is read from external computing device, i.e. F value, then calculates K value according to formula K=Q/F, can mark defining K value.
In such scheme, two ports of described large-diameter pipe are provided with fillet, and described fillet is provided with bolt hole.Two ports of large-diameter pipe arrange fillet, and fillet arranges bolt hole, can be got up with the pipeline of flow to be detected by Flange joint.
Use the method for Hall effect large diameter pipeline flowmeter survey large diameter pipeline flow, comprise the following steps:
First, before Hall effect large diameter pipeline flowmeter dispatches from the factory, carry out the demarcation of flow parameter K; The scaling method of flow parameter K is: Hall effect large diameter pipeline flowmeter is arranged on one with on the current testing conduit of accurate flowmeter and valve, output signal line is connected to the pulsed signal device of external computing device, the caliber of this current testing conduit is identical with the caliber of Hall effect large diameter pipeline flowmeter Large diameter pipe; Regulating water flow is carried out by control valve size, the reading of a series of accurate flowmeter can be obtained, this reading is the flow value of current testing conduit, i.e. Q value, and the pulse signal numerical value of Hall element corresponding Hall effect large diameter pipeline flowmeter is read from external computing device, i.e. F value, then calculates K value according to formula K=Q/F, can mark defining K value.
Then, Hall effect large diameter pipeline flowmeter is used to measure the flow of large diameter pipeline to be measured: the caliber of this large diameter pipeline to be measured is identical with the caliber of the large diameter pipeline in Hall effect large diameter pipeline flowmeter, first the large diameter pipeline of Hall effect large diameter pipeline flowmeter and large diameter pipeline to be measured are coupled together, output signal line is connected to the pulsed signal device of external computing device, make fluid by Hall effect large diameter pipeline flowmeter, then the flow parameter K that in the small-bore pipeline that records of external computing device, the pulse signal frequency F of Hall flow sensor and above-mentioned steps are demarcated calculates the flow Q of large diameter pipeline to be measured, computing formula is, Q=KF.
Advantage of the present utility model and beneficial effect are: the utility model provides a kind of pipe with small pipe diameter Hall flow sensor that utilizes to measure equipment and the measuring method thereof of big-diameter pipeline flow, utilize the flow value in " current drive runner to rotate; Hall element electromagnetic induction output pulse signal " principle and large-diameter pipe and the proportional principle of the flow value in small-bore arm, use the pulse signal numerical value of pipe with small pipe diameter flow sensor, Q=KF calculates large diameter pipeline flowmeter numerical value with the formula, the Accurate Calibration when flowmeter manufactures of the K value in formula; Thus achieve large diameter pipeline flowmeter manufacture easy, use material few, cost is low, volume is little, install and use advantage easy to maintenance, brings good Social benefit and economic benefit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the main TV structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the left view of the utility model embodiment 1
Fig. 3 is the main TV structure schematic diagram of the utility model embodiment 2
In figure: 1, large-diameter pipe 11, fillet 12, bolt hole 2, small-bore arm
21, horizontal inlet end 22, ascent stage 23, horizontal segment 24, descending branch
25, Horizontal Exit end 3, Hall flow sensor 31, Hall element 32, runner
33, permanent magnet 34, locating piece 35. output signal line 4, lower fulcrum bar 5, upper arm
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
As shown in Figure 1, the two ends of small-bore arm 2 are embedded in large-diameter pipe 1, and small-bore pipe 2 comprises horizontal inlet end 21, ascent stage 22, horizontal segment 23, descending branch 24 and Horizontal Exit end 25; Horizontal inlet end 21, horizontal segment 23 and Horizontal Exit end 25 are parallel with large-diameter pipe 1, and the ascent stage 22 is vertical with large-diameter pipe 1 with descending branch 23; Horizontal inlet end 21 is identical with the influent stream direction of large-diameter pipe 1, and it is identical that Horizontal Exit end 25 and large-diameter pipe 1 go out flow path direction; As shown in Figure 2, two ports of large-diameter pipe 1 are provided with fillet 11, and fillet 11 is provided with bolt hole 12, can with treat that the pipeline of measurement of discharge is by Flange joint.In Fig. 1, direction shown in arrow is fluid flow direction, enters from large diameter pipeline 1 left end, and right-hand member flows out.Fluid, when entering large diameter pipeline 1, due under the effect of hydrodynamic pressure, enters small pipeline 2 simultaneously, realizes fluid and enters on the left of small pipeline, export on the right side of small pipeline.Hall flow sensor 3 is arranged in the horizontal segment 23 of small-bore arm 2.Hall flow sensor 3 comprises Hall element 31, runner 32, permanent magnet 33; Permanent magnet 33 is fixed on runner 32, and locating piece 34 is upper and lower two annular protrusions, by runner 32 inlay card within it, avoid runner 32 fluid by time in pipeline axial float, thus ensure the accurate rotational of runner; Hall element 31 is connected with output signal line 35, output signal line 35 is connected with the pulsed signal device of external computing device (scheming not shown); Runner 32 rotates with the flowing of tube fluid, and runner 32 often rotates a permanent magnet 33 enclosed on it and responds to once with Hall element 31, thus makes Hall element 31 produce pulsatile once signal, and by output signal line 35 output pulse signal
After the large diameter pipeline of Hall effect shown in Fig. 1 flowmeter has assembled, the demarcation of flow coefficient k can be carried out, scaling method is: Hall effect large diameter pipeline flowmeter is arranged on one with on the current testing conduit of accurate flowmeter and valve, output signal line 35 is connected to the pulsed signal device of external computing device, the caliber of this current testing conduit is identical with the caliber of Hall effect large diameter pipeline flowmeter Large diameter pipe; Regulating water flow is carried out by control valve size, the reading of a series of accurate flowmeter can be obtained, this reading is the flow value of current testing conduit, i.e. Q value, and the pulse signal numerical value of Hall element corresponding Hall effect large diameter pipeline flowmeter is read from external computing device, i.e. F value, then can mark defining K value according to formula K=Q/F.
When using the present embodiment to measure the flow of large-diameter pipe, the large diameter pipeline 1 of the present embodiment is got up by Flange joint with large diameter pipeline to be measured, output signal line 35 is connected to the pulsed signal device of external computing device, fluid is made to pass through the utility model, fluid is when entering large diameter pipeline 1, due under the effect of hydrodynamic pressure, enter small-bore arm 2 simultaneously, when fluid flows through from small-bore arm 2, fluid driven runner 32 rotates, rate of flow of fluid is faster, and the velocity of rotation of runner 32 is also faster; Being fixed on permanent magnet 33 on runner 32 along with runner rotates together.Permanent magnet 33 often turns around and all can respond to Hall element 31 and make Hall element 31 produce pulsatile once signal, and pulse signal is exported by signal wire 35.At this moment, after the pulse signal exported from signal wire 35 is received by pulsed signal device, measure the frequency of this pulse signal, by daemon software according to following formulae discovery: Q=KF, the flow value Q in large-diameter pipe 1 can be obtained; Wherein, K is coefficient of flow, has dispatched from the factory at the utility model and has please been demarcated by testing conduit and accurate flowmeter; F is the frequency that Hall element 31 that external computing device records produces pulse signal.
Embodiment 2
As shown in Figure 3, small-bore arm 2 is arranged in large-diameter pipe 1 completely, the bottom of small-bore arm 2 is fixedly connected with the lower inwall of large-diameter pipe 1 by lower fulcrum bar 4, and the top of small-bore arm 2 is fixedly connected with one end of upper arm 5, and the other end of upper arm 5 passes inwall on large-diameter pipe 1.The junction, top of upper arm 5 and small-bore arm 2, and upper arm 5 passes large-diameter pipe 1 outer wall place and all does waterproof sealing process.Two ports of large-diameter pipe 1 are provided with fillet 11, and fillet 11 is provided with bolt hole (figure for illustrating, can reference diagram 2), can with treat that the pipeline of measurement of discharge is by Flange joint.In Fig. 3, direction shown in arrow is fluid flow direction.
Hall flow sensor 3 comprises the Hall element 31 of runner 32, locating piece 34 and energy induced field, and Hall element 31 is fixed on outside small-bore arm 2, in upper arm 5; Locating piece 34 is upper and lower two annular protrusions, by runner 32 inlay card within it, avoid runner 32 fluid by time in pipeline axial float, thus ensure the accurate rotational of runner; Runner 32 is provided with permanent magnet 33, and Hall element 31 is provided with output signal line 35, and output signal line 35 passes through and passes large-diameter pipe 1 in upper arm 5, and output signal line 35 is connected with external computing device (scheming not shown); Runner 32 rotates with the flowing of tube fluid, and runner 32 often rotates a permanent magnet 33 enclosed on it and responds to once with Hall element 31, thus makes Hall element 31 produce pulsatile once signal, and by output signal line 35 output pulse signal.
After the large diameter pipeline of Hall effect shown in Fig. 3 flowmeter has assembled, the demarcation of flow coefficient k can be carried out, scaling method is: Hall effect large diameter pipeline flowmeter is arranged on one with on the current testing conduit of accurate flowmeter and valve, output signal line 35 is connected to the pulsed signal device of external computing device, the caliber of this current testing conduit is identical with the caliber of Hall effect large diameter pipeline flowmeter Large diameter pipe; Regulating water flow is carried out by control valve size, the reading of a series of accurate flowmeter can be obtained, this reading is the flow value of current testing conduit, i.e. Q value, and the pulse signal numerical value of Hall element Hall effect large diameter pipeline flowmeter is read from external computing device, i.e. F value, then can mark defining K value according to formula K=Q/F.
When using the present embodiment to measure the flow of large-diameter pipe, the large diameter pipeline 1 of the present embodiment is got up by Flange joint with large diameter pipeline to be measured, output signal line 35 is connected to the pulsed signal device of external computing device, fluid is made to pass through the utility model, fluid is when entering large diameter pipeline 1, due under the effect of hydrodynamic pressure, enter small-bore arm 2 simultaneously, when fluid flows through from small-bore arm 2, fluid driven runner 32 rotates, rate of flow of fluid is faster, and the velocity of rotation of runner 32 is also faster; Being fixed on permanent magnet 33 on runner 32 along with runner rotates together.Permanent magnet 33 often turns around and all can respond to Hall element 31 and make Hall element 31 produce pulsatile once signal, and pulse signal is exported by signal wire 35.At this moment the frequency of this pulse signal is measured after the pulse signal exported from signal wire 35 is received by the pulsed signal device of external computing device, then by daemon software according to following formulae discovery: Q=K F, can obtain the flow value Q in large-diameter pipe 1; Wherein, K is coefficient of flow, has dispatched from the factory at the utility model and has please been demarcated by testing conduit and accurate flowmeter; F is the frequency that Hall element 31 that external computing device records produces pulse signal.
The utility model utilizes the flow value in the flow value in large-diameter pipe and small-bore arm proportional dexterously, and " current drive runner to rotate, Hall element electromagnetic induction output pulse signal " principle, by the pulse signal frequency that Hall flow sensor in the small-bore pipe measured exports, thus calculate the flow of large-diameter pipe to be measured, when the utility model device fabrication is dispatched from the factory, accurate flowmeter is used to carry out calibrational capacity COEFFICIENT K by production firm, thus user can by the flow coefficient k demarcated, with the pulse signal frequency recorded, obtain the flow of large-diameter pipe to be measured simply and easily.
Large-diameter pipe in the utility model can have various different caliber, and often kind of caliber is for measuring the flow of the to be measured large-diameter pipe identical with its caliber.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. Hall effect large diameter pipeline flowmeter, is characterized in that, comprising: large-diameter pipe and small-bore arm; The two ends of described small-bore arm are arranged in large-diameter pipe; Hall flow sensor is provided with in described small-bore arm.
2. Hall effect large diameter pipeline flowmeter according to claim 1, is characterized in that, described small-bore arm comprises horizontal inlet end, ascent stage, horizontal segment, descending branch and Horizontal Exit end; Described horizontal inlet end and Horizontal Exit end are arranged in described large-diameter pipe, and the described ascent stage is vertical with large-diameter pipe with descending branch and part passes large-diameter pipe, and described horizontal segment connection described ascent stage and descending branch pass the port of large-diameter pipe part; Described Hall flow sensor is arranged in horizontal segment.
3. Hall effect large diameter pipeline flowmeter according to claim 2, is characterized in that, described Hall flow sensor comprises the Hall element of runner, locating piece and energy induced field, and described Hall element is fixed on outside small-bore arm; Described locating piece limits described runner axial float in small-bore arm, and described runner is provided with permanent magnet, and described Hall element is provided with output signal line, and described output signal line is connected with external computing device; Described runner rotates with the flowing of tube fluid, and described runner often rotates the permanent magnet of a circle on it and described Hall element is responded to once, thus makes Hall element produce pulsatile once signal, and by output signal line output pulse signal.
4. Hall effect large diameter pipeline flowmeter according to claim 1, is characterized in that, described small-bore arm is arranged in large-diameter pipe completely; Be fixedly connected with inwall under large-diameter pipe by lower fulcrum bar bottom described small-bore arm, described small-bore arm top is fixedly connected with one end of upper arm, and the other end of described upper arm passes inwall on large-diameter pipe.
5. Hall effect large diameter pipeline flowmeter according to claim 4, is characterized in that, described Hall flow sensor comprises the Hall element of runner, locating piece and energy induced field, and described Hall element is fixed on outside small-bore arm, in upper arm; Described locating piece limits described runner axial float in small-bore arm, described runner is provided with permanent magnet, described Hall element is provided with output signal line, and described output signal line passes through and passes large-diameter pipe in upper arm, and described output signal line is connected with external computing device; Described runner rotates with the flowing of tube fluid, and described runner often rotates the permanent magnet of a circle on it and described Hall element is responded to once, thus makes Hall element produce pulsatile once signal, and by output signal line output pulse signal.
6., according to the arbitrary described Hall effect large diameter pipeline flowmeter of Claims 1 to 5, it is characterized in that, two ports of described large-diameter pipe are provided with fillet, and described fillet is provided with bolt hole.
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| CN201420433721.7U CN204043730U (en) | 2014-08-01 | 2014-08-01 | Hall effect large diameter pipeline flowmeter |
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| CN201420433721.7U CN204043730U (en) | 2014-08-01 | 2014-08-01 | Hall effect large diameter pipeline flowmeter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154960A (en) * | 2014-08-01 | 2014-11-19 | 衢州市鼎盛化工科技有限公司 | Hall-effect large-diameter pipeline flowmeter |
| CN107449473A (en) * | 2016-05-31 | 2017-12-08 | 克洛纳有限公司 | For running the method and nuclear-magnetism formula flow instrument of nuclear-magnetism formula flow instrument |
| CN107890598A (en) * | 2016-10-03 | 2018-04-10 | 捷普科技（上海）有限公司 | Medicament dispenser |
| CN107976225A (en) * | 2017-11-27 | 2018-05-01 | 扬州大学 | Built-in activity well device for shunting and surveying current with broad measuring |
-
2014
- 2014-08-01 CN CN201420433721.7U patent/CN204043730U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154960A (en) * | 2014-08-01 | 2014-11-19 | 衢州市鼎盛化工科技有限公司 | Hall-effect large-diameter pipeline flowmeter |
| CN107449473A (en) * | 2016-05-31 | 2017-12-08 | 克洛纳有限公司 | For running the method and nuclear-magnetism formula flow instrument of nuclear-magnetism formula flow instrument |
| CN107890598A (en) * | 2016-10-03 | 2018-04-10 | 捷普科技（上海）有限公司 | Medicament dispenser |
| US11033693B2 (en) | 2016-10-03 | 2021-06-15 | Jabil Circuit (Shanghai) Co., Ltd. | Medication dispenser |
| US11110235B2 (en) | 2016-10-03 | 2021-09-07 | Jabil Circuit (Shanghai) Co., Ltd. | Medication dispenser |
| CN107976225A (en) * | 2017-11-27 | 2018-05-01 | 扬州大学 | Built-in activity well device for shunting and surveying current with broad measuring |
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