CN105758472A - Magnetic induction pulse flow metering device with function of flow direction judgment - Google Patents
Magnetic induction pulse flow metering device with function of flow direction judgment Download PDFInfo
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- CN105758472A CN105758472A CN201610213326.1A CN201610213326A CN105758472A CN 105758472 A CN105758472 A CN 105758472A CN 201610213326 A CN201610213326 A CN 201610213326A CN 105758472 A CN105758472 A CN 105758472A
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- magnetic
- metering device
- magnetic induction
- fluid flows
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- 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
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the field of fluid metering, in particular to a magnetic induction pulse flow metering device with a function of flow direction judgment. The magnetic induction pulse flow metering device comprises a metering device body, a medium flow guide cavity, an impeller shaft, an impeller, a high-magnetic-conductivity stator plate, a coil holder iron core, a coil, an intelligent panel, a flow direction pendulum, a first permanent magnet and a first reed switch. Annular magnetic steel is fixedly arranged at the upper end of the impeller shaft and provided with magnetic areas in an even number, and every two adjacent magnetic areas are opposite in magnetic poles. The middle of the high-magnetic-conductivity stator plate is provided with a magnetic pole cavity. The intelligent panel is connected with the first reed switch and judges the flow direction according to switch states of the first reed switch. The magnetic induction pulse flow metering device has no requirement on electric conductivity of media, metering can be realized no matter whether the media are electrically conductive or not, and the magnetic induction pulse flow metering device is extensive in application range, capable of judging the flow direction and high in metering accuracy and precision. In addition, since the inner wall of the medium flow guide cavity is free of a lining for electric isolation, low manufacturing cost is realized.
Description
Technical field
The present invention relates to fluid metering field, particularly to a kind of magnetic induction pulses flow measurement device that can determine whether that fluid flows to.
Background technology
Existing electromagnetic flowmeter, fluid must be able to conduction, and the flowing by fluid carrys out cutting magnetic line, and effusion meter can only measure the conductivity fluid flow more than 5 μ s/m media.And medium diversion cavity inwall must carry out lining, medium and medium diversion cavity to be played the effect of electric isolution.Additionally, be difficult to accurate measurement when flow is less.In the water system of some networkings, the flow of existing forward in pipeline, there is again the flow of negative sense, existing effusion meter cannot judge the flow direction of fluid, just makes flow measurement inaccurate.
Summary of the invention
It is an object of the invention to overcome disadvantage mentioned above, a kind of magnetic induction pulses flow measurement device that can determine whether that fluid flows to is provided, this device is not only to measuring medium without conductivity requirements, no matter medium is can measuring of can conducting electricity or can not conduct electricity, applied range, and the flow direction of fluid can be judged, measure accurate, precision height, in addition medium diversion cavity inwall electrically insulates without lining, low cost of manufacture.
The present invention is achieved in that a kind of magnetic induction pulses flow measurement device that can determine whether that fluid flows to, including metering device body, described metering device is originally internal is provided with medium diversion cavity, it is characterized in that: described metering device also includes being rotationally connected with in medium diversion cavity and the perpendicular impeller axle of axis and media flow direction and be fixedly arranged on the impeller on impeller axle, the upper end of described impeller axle is placed on metering device after metering device body, and this is external and be coaxially installed with ring-type magnet steel, described ring-type magnet steel is provided with decile and the even number magnetic regions being annularly distributed, the magnetic pole of adjacent two magnetic regions is contrary；Described metering device also include the high magnetic conduction stator piece being fixedly arranged on metering device body, the coil holder iron core being fixedly arranged between high magnetic conduction stator piece two ends, the coil being wound on coil holder iron core and be connected with coil for the pulse signal obtaining on coil the intelligent plate that pulse signal is converted to fluid flow information, being provided with magnetic pole chamber in the middle part of described high magnetic conduction stator piece, described ring-type magnet steel is positioned at magnetic pole intracavity；Described metering device also includes being rotationally connected with in medium diversion cavity and center of rotation is perpendicular with media flow direction flows to pendulum, be arranged at and flow to the permanent magnet one put on end and the tongue tube one being fixedly arranged on metering device body, described tongue tube one is positioned at the top of permanent magnet one position when fluid forward flow or negative sense flowing, and described intelligent plate is connected with tongue tube one and judges that fluid flows to by the on off state of tongue tube one.
In order to prevent the iron adsorption in fluid from making effusion meter metering inaccurate to ring-type magnet steel, being additionally provided with iron shaving adsorption apparatus in described medium diversion cavity, described iron shaving adsorption apparatus is positioned at impeller axle upper end and is rotationally connected below position with metering device body.
Preferably, magnet stator that described iron shaving adsorption apparatus includes being fixedly arranged in medium diversion cavity and the more than one permanent magnet two being fixedly arranged on magnet stator, the installation site of described permanent magnet two is away from tongue tube one.
In order to enable to accurately measure the flow of fluid when tiny flow quantity, be provided with tongue tube two by described high magnetic conduction stator piece, described intelligent plate be connected with tongue tube two and can't detect on coil at intelligent plate pulse signal time can choose the on-off model on tongue tube and this on-off model is converted to fluid flow information.
In order to be able to carry out self-powered, described impeller axle upper end is also coaxially installed with generating rotor, and described metering device body is fixedly provided with the generating stator mechanism matched with the rotor that generates electricity.
In order to show flow values better, described intelligent plate is also associated with the display screen for showing flow values, being additionally provided with the rechargeable battery for powering to intelligent plate and display screen on described intelligent plate, described generating stator mechanism is connected with rechargeable battery and rechargeable battery is charged.
In order to prevent fluid from leaking outside, avoid fluid to contaminate coil simultaneously, increasing the service life, described ring-type magnet steel and generating rotor outer periphery are arranged with non-magnetic seal closure, and described non-magnetic seal closure is provided with under shed and opening periphery and is tightly connected with the formation of metering device body.
In order to make measurement result more accurate, described high magnetic conduction stator piece, coil holder iron core and coil are covered with the Antimagnetic hood for preventing external magnetic field from disturbing.
In order to enable to be attached with remote terminal, flow values being conveyed directly to remote terminal, simultaneously to can determine whether that the magnetic induction pulses flow measurement device that fluid flows to is monitored in real time, described intelligent plate being additionally provided with wireless communication module.
Preferably, described wireless communication module is the transmitting antenna being connected with intelligent plate.
Compared to prior art, the invention have the advantages that
(1) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, not only to measuring medium without conductivity requirements, no matter medium is can measuring of can conducting electricity or can not conduct electricity, applied range, and the flow direction of fluid can be judged, measuring accurate, precision height, medium diversion cavity inwall electrically insulates without lining in addition, low cost of manufacture；
(2) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, is provided with iron shaving adsorption apparatus, the iron filings in energy fluid-absorbent, is effectively prevented the iron adsorption in fluid and makes effusion meter metering inaccurate to ring-type magnet steel；
(3) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, it is provided with tongue tube by high magnetic conduction stator piece, on-off model that switch on and off on tongue tube produces can be chosen to calculate fluid flow information so that also can accurately measure the flow of fluid when tiny flow quantity when intelligent plate can't detect the pulse signal on coil；
(4) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, is provided with generating rotor and generating stator mechanism, can carry out self-powered, it is not necessary to additionally lay electric wire, be suitable to high-volume and install configuration on a large scale；
(5) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, ring-type magnet steel and generating rotor outer periphery are arranged with non-magnetic seal closure, can not only prevent fluid from leaking outside, and avoid fluid to contaminate coil, increase the service life；
(6) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, high magnetic conduction stator piece, coil holder iron core and coil is covered with the Antimagnetic hood for preventing external magnetic field from disturbing so that measurement result is more accurate；
(7) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, it is provided with wireless communication module, can be attached with remote terminal, the reading of metering device is conveyed directly to remote terminal, magnetic induction pulses apparatus for metering fluids can be monitored in real time simultaneously, reduce management cost；
(8) the magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, simple in construction, serviceability are reliable, low cost of manufacture, it is easy to popularization and application.
Accompanying drawing explanation
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structural representation that the present invention can determine whether the magnetic induction pulses flow measurement device that fluid flows to；
Fig. 2 is the A-A sectional view in Fig. 1；
Fig. 3 is the B partial enlarged drawing of Fig. 1；
Fig. 4 is the C-C sectional view in Fig. 1；
Fig. 5 is the structural representation of ring-type magnet steel in Fig. 4；
Fig. 6 is the D-D sectional view in Fig. 1.
Symbol description in figure: 1, metering device body, 2, medium diversion cavity, 3, impeller axle, 4, impeller, 5, ring-type magnet steel, 5-1, magnetic regions, 6, high magnetic conduction stator piece, 6-1, magnetic pole chamber, 7, coil holder iron core, 8, coil, 9, intelligent plate, 10, flow to pendulum, 11, permanent magnet one, 12, tongue tube one, 13, iron shaving adsorption apparatus, 13-1, magnet stator, 13-2, permanent magnet two, 14, tongue tube two, 15, generating rotor, 16, generating stator mechanism, 17, display screen, 18, non-magnetic seal closure, 19, Antimagnetic hood, 20, transmitting antenna.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, present invention is described in detail:
As shown in figs 1 to 6, for a kind of magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, including metering device body 1, it is provided with medium diversion cavity 2 in described metering device body 1, described metering device also includes being rotationally connected with in medium diversion cavity 2 and the perpendicular impeller axle 3 of axis and media flow direction and the impeller 4 that is fixedly arranged on impeller axle 3, the upper end of described impeller axle 3 is placed on outside metering device body 1 after metering device body 1 and is coaxially installed with ring-type magnet steel 5, described ring-type magnet steel 5 is provided with decile and the even number magnetic regions 5-1 being annularly distributed, the magnetic pole of adjacent two magnetic regions 5-1 is contrary；Described metering device also include the high magnetic conduction stator piece 6 being fixedly arranged on metering device body 1, the coil holder iron core 7 being fixedly arranged between high magnetic conduction stator piece 6 two ends, the coil 8 being wound on coil holder iron core 7 and be connected with coil 8 for the pulse signal obtaining on coil 8 intelligent plate 9 that pulse signal is converted to fluid flow information, being provided with magnetic pole chamber 6-1 in the middle part of described high magnetic conduction stator piece 6, described ring-type magnet steel 5 is positioned at magnetic pole chamber 6-1；Described metering device also includes being rotationally connected with in medium diversion cavity 2 and center of rotation is perpendicular with media flow direction flows to pendulum 10, be arranged at and flow to the permanent magnet 1 put on 10 ends and the tongue tube 1 being fixedly arranged on metering device body 1, described tongue tube 1 is positioned at the top of permanent magnet 1 position when fluid forward flow or negative sense flowing, and described intelligent plate 9 is connected with tongue tube 1 and judges that fluid flows to by the on off state of tongue tube 1.Certain tongue tube 12 can also be positioned at the top of permanent magnet 1 position during fluid forward flow.As it is shown in figure 1, in the present embodiment, metering device body 1 is provided with bearing block, and tongue tube 1 is arranged in bearing block, flows to pendulum 10 and is rotationally connected with below bearing block and coaxial with impeller axle 3.As shown in Fig. 1, Fig. 6, when fluid forward flow, flow to pendulum 10 and be positioned at the underface of tongue tube 1, the permanent magnet one 11 flowed on pendulum 10 makes tongue tube 1 close, when fluid negative sense flows, flow to pendulum 10 and then deviate the underface of tongue tube 1, tongue tube one 12 disconnection, by the on off state of tongue tube 1, intelligent plate 9 can judge that fluid flows to so that flow measurement is more accurate.This flow measurement device can be used for supplying water, fuel feeding or other fluid metering field.High magnetic conduction stator piece 6, coil holder iron core 7 and coil 8 can also adopt Hall element to replace.Tongue tube 1 may be used without Hall element.
As shown in Figure 1 and Figure 2, in order to prevent the iron adsorption in fluid from making effusion meter metering inaccurate to ring-type magnet steel, being additionally provided with iron shaving adsorption apparatus 13 in described medium diversion cavity 2, described iron shaving adsorption apparatus 13 is positioned at impeller axle 3 upper end and is rotationally connected a lower section with metering device body.
As shown in Fig. 1, Fig. 6, magnet stator 13-1 that described iron shaving adsorption apparatus 13 includes being fixedly arranged in medium diversion cavity 2 and six permanent magnet two 13-2 being fixedly arranged on magnet stator 13-1, permanent magnet two 13-2 two one group is uniformly laid on magnet stator 13-1, the angle often organized is 120 degree, and described tongue tube 1 is positioned at two groups of permanent magnet two 13-2 and presss from both sides bisector of angle top position.The installation site of permanent magnet two 13-2, away from tongue tube 1, refers to the position of the permanent magnet 13-2 disconnection without interference with tongue tube 1 and closure state.Permanent magnet two 13-2 can iron filings in fluid-absorbent, be effectively prevented the iron adsorption in fluid and make effusion meter metering inaccurate to ring-type magnet steel 5, when iron adsorption to a certain extent time washed away by fluid.
As shown in Fig. 1, Fig. 3, Fig. 4, in order to enable to accurately measure the flow of fluid when tiny flow quantity, described high magnetic conduction stator piece 6 is other is provided with tongue tube 2 14, and described intelligent plate 9 is connected with tongue tube 2 14 and can choose the on-off model on tongue tube 14 when intelligent plate 9 can't detect the pulse signal on coil 8 and this on-off model is converted to fluid flow information.
As shown in Figure 1, Figure 3, in order to be able to carry out self-powered, described impeller axle 3 upper end is also coaxially installed with generating rotor 15, and described metering device body 1 is fixedly provided with the generating stator mechanism 16 matched with the rotor 15 that generates electricity.
As shown in Figure 1, Figure 3, in order to show flow values better, described intelligent plate 9 is also associated with the display screen 17 for showing flow values, being additionally provided with the rechargeable battery for powering to intelligent plate 9 and display screen 17 on described intelligent plate 9, described generating stator mechanism 16 is connected with rechargeable battery and rechargeable battery is charged.Described high magnetic conduction stator piece 6, coil holder iron core 7, coil 8, generating stator mechanism 16, display screen 17 and intelligent plate 9 peripheral closure are provided with protective housing.
As shown in Figure 1, Figure 3, in order to prevent fluid from leaking outside, avoid fluid to contaminate coil simultaneously, increase the service life, described ring-type magnet steel 5 and generating rotor 15 periphery are arranged with non-magnetic seal closure 18, and described non-magnetic seal closure 18 is provided with under shed and opening periphery and is tightly connected with metering device body 1 formation.
As shown in Figure 1, Figure 3, in order to make measurement result more accurate, described high magnetic conduction stator piece 6, coil holder iron core 7 and coil 8 are covered with the Antimagnetic hood 19 for preventing external magnetic field from disturbing.
In order to enable to be attached with remote terminal, flow values being conveyed directly to remote terminal, simultaneously to can determine whether that the magnetic induction pulses flow measurement device that fluid flows to is monitored in real time, described intelligent plate 9 being additionally provided with wireless communication module.Described wireless communication module can adopt low-power consumption, low cost, wide covering, deep penetration, highly reliable wireless telecommunications arrowband honeycomb Internet of Things module.
As shown in Figure 1, Figure 3, described wireless communication module is the transmitting antenna 20 being connected with intelligent plate 9.
The magnetic induction pulses flow measurement device that can determine whether that fluid flows to provided by the invention, can impeller 4 rotate when fluid flows through from medium diversion cavity 2, ring-type magnet steel 5 and generator amature 15 is driven to rotate when impeller 4 rotates, magnetic pole is passed to coil holder iron core 7 by high magnetic conduction stator piece 6 by the ring-type magnet steel 5 being positioned at magnetic pole chamber 6-1, owing to ring-type magnet steel 5 is provided with different magnetic poles, so the magnetic pole on coil holder iron core 7 is in continuous change when rotating, coil 8 is made to produce the induced voltage pulse signal that quantity is corresponding with fluid flow, intelligent plate 9 receives the pulse signal of induced voltage, and pulse signal is converted to fluid flow information exports.Demand according to precision, the even number magnetic regions 5-1, magnetic regions 5-1 that can be provided with decile on ring-type magnet steel 5 are more many, and certainty of measurement is more high.When generating rotor 15 rotates, can coordinate with generating stator mechanism 16 and generate electricity, rechargeable battery is charged.Owing to when ring-type magnet steel 5 rotates, magnetic pole can make tongue tube 2 14 constantly close, disconnect, thus producing pulse signal, not by the impact of fluid flow size, then influence electricity pressure pulse signal when coil 8 is small at fluid flow, impeller axle 3 rotating speed is low, namely intelligent plate 9 chooses the on-off model on tongue tube 2 14 to calculate fluid flow information so that also can accurately measure the flow of fluid when low discharge.When intelligent plate 9 detects and has sensing voltage pulse signal on coil 8, the pulse signal that intelligent plate 9 is then chosen on coil 8 measures.As shown in the figure, when fluid forward flow, flow to pendulum 10 and be positioned at the underface of tongue tube 1, the permanent magnet one 11 flowed on pendulum 10 makes tongue tube 1 close, when fluid negative sense flows, flow to pendulum 10 and then deviate the underface of tongue tube 1, tongue tube one 12 disconnection, by the on off state of tongue tube 1, intelligent plate 9 can judge that fluid flows to so that flow measurement is more accurate.Iron shaving adsorption apparatus 13 in medium diversion cavity 2 can iron filings in fluid-absorbent, be effectively prevented the iron adsorption in fluid and make effusion meter metering inaccurate to ring-type magnet steel 5, when iron adsorption to a certain extent time washed away by fluid.
Technical scheme is simply explained in detail by above-mentioned detailed description of the invention, and the present invention is not only limited only to above-described embodiment, every any improvement according to the principle of the invention or replacement, all should within protection scope of the present invention.
Claims (10)
1. can determine whether the magnetic induction pulses flow measurement device that fluid flows to, including metering device body (1), in described metering device body (1), be provided with medium diversion cavity (2), it is characterised in that:
Described metering device also includes being rotationally connected with in medium diversion cavity (2) and the perpendicular impeller axle (3) of axis and media flow direction and the impeller (4) that is fixedly arranged on impeller axle (3), the upper end of described impeller axle (3) is placed on metering device body (1) after metering device body (1) and is installed with outward and coaxially ring-type magnet steel (5), described ring-type magnet steel (5) is provided with decile and the even number magnetic regions (5-1) being annularly distributed, and the magnetic pole of adjacent two magnetic regions (5-1) is contrary；
Described metering device also include the high magnetic conduction stator piece (6) being fixedly arranged on metering device body (1), the coil holder iron core (7) being fixedly arranged between high magnetic conduction stator piece (6) two ends, the coil (8) being wound on coil holder iron core (7) and be connected with coil (8) for the pulse signal obtained on coil (8) the intelligent plate (9) that pulse signal is converted to fluid flow information, described high magnetic conduction stator piece (6) middle part is provided with magnetic pole chamber (6-1), and described ring-type magnet steel (5) is positioned at magnetic pole chamber (6-1)；
The flow direction that described metering device also includes being rotationally connected with in medium diversion cavity (2) and center of rotation is perpendicular with media flow direction puts (10), it is arranged at the permanent magnet one (11) flowed on pendulum (10) end and the tongue tube one (12) being fixedly arranged on metering device body (1), described tongue tube one (12) is positioned at the top of permanent magnet one (11) position when fluid forward flow or negative sense flowing, described intelligent plate (9) is connected with tongue tube one (12) and judges that fluid flows to by the on off state of tongue tube one (12).
2. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 1, it is characterized in that: be additionally provided with iron shaving adsorption apparatus (13) in described medium diversion cavity (2), described iron shaving adsorption apparatus (13) is positioned at impeller axle (3) upper end and is rotationally connected below position with metering device body (1).
3. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 2, it is characterized in that: magnet stator (13-1) that described iron shaving adsorption apparatus (13) includes being fixedly arranged in medium diversion cavity (2) and the more than one permanent magnet two (13-2) being fixedly arranged on magnet stator (13-1), the installation site of described permanent magnet two (13-2) is away from tongue tube one (12).
4. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 1, it is characterized in that: described high magnetic conduction stator piece (6) is other is provided with tongue tube two (14), and described intelligent plate (9) is connected with tongue tube two (14) and can choose the on-off model on tongue tube (14) when intelligent plate (9) can't detect the pulse signal on coil (8) and this on-off model is converted to fluid flow information.
5. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 1, it is characterized in that: described impeller axle (3) upper end is also coaxially installed with generating rotor (15), and described metering device body (1) is fixedly provided with generating stator mechanism (16) matched with the rotor that generates electricity (15).
6. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 5, it is characterized in that: described intelligent plate (9) is also associated with the display screen (17) for showing flow values, being additionally provided with the rechargeable battery for powering to intelligent plate (9) and display screen (17) on described intelligent plate (9), described generating stator mechanism (16) is connected with rechargeable battery and rechargeable battery is charged.
7. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 5, it is characterized in that: described ring-type magnet steel (5) and generating rotor (15) periphery are arranged with non-magnetic seal closure (18), and described non-magnetic seal closure (18) is provided with under shed and opening periphery and is tightly connected with metering device body (1) formation.
8. can determine whether, according to any one of claim 1-7, the magnetic induction pulses flow measurement device that fluid flows to, it is characterised in that: described high magnetic conduction stator piece (6), coil holder iron core (7) and coil (8) are covered with the Antimagnetic hood (19) for preventing external magnetic field from disturbing.
9. can determine whether, according to any one of claim 1-7, the magnetic induction pulses flow measurement device that fluid flows to, it is characterised in that: described intelligent plate is additionally provided with wireless communication module on (9).
10. the magnetic induction pulses flow measurement device that can determine whether that fluid flows to according to claim 9, it is characterised in that: described wireless communication module is the transmitting antenna (20) being connected with intelligent plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213326.1A CN105758472A (en) | 2016-04-07 | 2016-04-07 | Magnetic induction pulse flow metering device with function of flow direction judgment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610213326.1A CN105758472A (en) | 2016-04-07 | 2016-04-07 | Magnetic induction pulse flow metering device with function of flow direction judgment |
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| CN201610213326.1A Pending CN105758472A (en) | 2016-04-07 | 2016-04-07 | Magnetic induction pulse flow metering device with function of flow direction judgment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107747979A (en) * | 2017-11-21 | 2018-03-02 | 福州金泽科技有限公司 | A kind of anti-sticking foreign body intelligence teletransmission Internet of Things water meter watch core |
| CN107830900A (en) * | 2017-11-21 | 2018-03-23 | 福州金泽科技有限公司 | A kind of anti-sticking foreign matter intelligent wireless teletransmission Internet of Things water meter |
| CN109163754A (en) * | 2018-08-31 | 2019-01-08 | 吴晓红 | A kind of pipeline pollution monitoring device based on bernoulli principle and the raw electricity of magnetic |
| RU192123U1 (en) * | 2019-04-08 | 2019-09-04 | Публичное акционерное общество завод "Красное знамя" | MAGNETOINDUCTION CONVERTER FASTENING ASSEMBLY TO THE HEAT CARRIER CHANNEL |
| CN110672169A (en) * | 2019-10-31 | 2020-01-10 | 沈阳仪表科学研究院有限公司 | Low-power-consumption high-precision thermal fluid metering method |
| CN112730885A (en) * | 2020-12-22 | 2021-04-30 | 连云港腾越电子科技有限公司 | Equipment for detecting working condition of water pipe |
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| CN110672169A (en) * | 2019-10-31 | 2020-01-10 | 沈阳仪表科学研究院有限公司 | Low-power-consumption high-precision thermal fluid metering method |
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