CN207248260U - Magnetic isolation target type meter - Google Patents

Abstract

The utility model discloses a kind of Magnetic isolation target type meter, its drip irrigation device is：Branch pipe, the gauge assembly being arranged on branch pipe and the display device being arranged on gauge assembly set including steel pipe, perpendicular to steel pipe, upper small flange, the lower installing pipe being fixedly installed respectively in upper small flange both sides and upper installing pipe, the lower installing pipe that the gauge assembly includes being arranged on the one end of branch pipe away from steel pipe are plugged in branch pipe；Rotational support has target bar in the lower installing pipe, and target bar lower end is located in steel pipe and is fixedly connected with target piece, and the target piece and steel pipe are axially vertical；Force cell is fixedly installed in upper installing pipe upper end；In upper installing pipe, the connecting rod of force cell lower end connection, be respectively arranged with the both sides of upper small flange and lower magnetic steel that target bar is fixed and the lower magnetic steel fixed with connecting rod.Active force transmission is carried out by the upper magnetic steel and lower magnetic steel of setting, substituted for foil gauge, so that flowmeter is less likely to be damaged, service life is longer.

Description

Magnetic isolation target type meter

Technical field

A kind of flowmeter is the utility model is related to, more specifically, it relates to a kind of Magnetic isolation target type meter.

Background technology

Target type meter starts to be applied to industrial flow measurement in the sixties, is mainly used for solving high viscosity, low Reynolds The flow measurement of number fluid, successively experienced the two great development stage of pneumatic table and electronic table.

The operation principle of target type meter is：One target perpendicular with flow velocity direction is set in constant cross-section straight pipe Piece, fluid along around target piece by when, target piece is acted on be subject to thrust, the size of thrust and the area of the kinetic energy of fluid and target piece It is directly proportional.In certain reynolds number range, it is directly proportional to the power that target piece is subject to flow through the flow of flowmeter, the power suffered by target piece Detected by force snesor, reconvert is into corresponding electric signal output.

Fig. 1 is the sectional view of existing target type meter；

As shown in Figure 1, target type meter a few days ago is included in target piece 235 ', the target set gradually from the bottom to top in cylinder 1 ' Bar 233 ', foil gauge 255, connecting rod 254 ', 1 ' side is provided with for force signals to be converted into electric signal on cylinder Force cell 253 ', is provided with display device 3 ' in the top of force cell 253 ', display device 3 ' include display 32 ' and Signal processor 31 ', target piece 235 ' are fixedly connected with target bar 233 ', and target bar 233 ' passes vertically through cylinder 1 ', 233 ' upper end of target bar It is fixedly connected with the foil gauge 255 being arranged in cylinder 1 ', foil gauge 255 ' uses elastic material, in the upper end of foil gauge 255 ' Connecting rod 254 ' is fixedly connected with, the upper end of connecting rod 254 ' connection force cell 253 ', is filled by signal processor 31 ', display 3 ' are put to measure flow.

This target type meter, in use, foil gauge 255 ' are fixed in flowmeter cylinder 1 ', in target bar 233 ' During swing, elastic deformation occurs for foil gauge 255 ', and then oscillatory forces are delivered to connecting rod 254；But this transfer mode makes Foil gauge 255 ' is persistently being deformed upon using process with the swing of target bar 233 ', easy aging, damage.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of Magnetic isolation target type meter, Active force transmission is carried out by the upper magnetic steel and lower magnetic steel of setting, substituted for foil gauge, so that flowmeter is less likely to be damaged, Service life is longer.

To achieve the above object, the utility model provides following technical solution：

A kind of Magnetic isolation target type meter, including steel pipe, the branch pipe perpendicular to steel pipe setting, the metering being arranged on branch pipe Component and the display device being arranged on gauge assembly, the gauge assembly include being arranged on the one end of branch pipe away from steel pipe Upper small flange, the lower installing pipe being fixedly installed respectively in upper small flange both sides and upper installing pipe, the lower installing pipe are plugged on In branch pipe；Rotational support has target bar in the lower installing pipe, and target bar lower end is located in steel pipe and is fixedly connected with target piece, the target Piece is axially vertical with steel pipe；Force cell is fixedly installed in upper installing pipe upper end；On described in installing pipe, force-measuring sensing The connecting rod of device lower end connection, the lower magnetic steel fixed with target bar is respectively arranged with the both sides of upper small flange and is fixed with connecting rod Lower magnetic steel.

By using above-mentioned technical proposal, pass through the gauge assembly and display device on the steel pipe, branch pipe, branch pipe of setting Fluid can be measured, pass through upper magnetic steel, the lower magnetic steel of the upper lower flange both sides of setting, when target piece rotates, lower magnetic steel Rotate, so as to act power to upper magnetic steel so that upper magnetic steel rotates, the active force transmission for being subject to upper magnetic steel by connecting rod To force cell, electric signal is delivered to display device and carries out display numerical value by force cell, and upper magnetic steel and lower magnetic steel are replaced Foil gauge, so that flowmeter is less likely to be damaged, service life is longer.

Preferably, the lower magnetic steel and upper magnetic steel side close to each other are all N poles or are all S poles.

By using above-mentioned technical proposal, by the way that upper magnetic steel and lower magnetic steel side close to each other are arranged to homopolarity, In work process, upper lower magnetic steel is relatively stable, and is less likely to be damaged.

Preferably, described between upper magnetic steel and lower magnetic steel small flange intermediate closed part, formed and be used to seal The isolation board of branch pipe.

By using above-mentioned technical proposal, by the isolation board of setting, branch pipe upper end can be sealed, when being measured in side Fluid enters branch pipe, is blocked by isolation board, so as to avoid the leakage of fluid, while it also avoid passing above branch pipe The influence of sensor.

Preferably, the thickness of the isolation board is less than the thickness of upper small flange peripheral part, close to the side of upper magnetic steel Deep gouge is formed, the upper magnetic steel is in deep gouge.

It is by using above-mentioned technical proposal, the thickness setting of isolation board is relatively thin, it can cause the phase interaction of upper and lower magnet steel It is firmly stronger.

Preferably, one end fixed setting away from upper small flange is parallel to the rotation axis of target piece in the lower installing pipe, The target knock-off joint that can be rotated is arranged with rotation axis, the target bar includes the upper target being interference fitted respectively with target knock-off joint both ends Bar and lower target bar, the upper target bar are fixed with lower magnetic steel, and the lower target bar is fixed with target piece.

By using above-mentioned technical proposal, in machine-shaping, upper target bar can be processed respectively with lower magnetic steel, can be with Save process time；The lower target bar of different length is set below target knock-off joint, the flowmeter of different size can be formulated, under When target bar is processed with target piece, can individually it be operated, it is more convenient.

Preferably, leave gap between the upper magnetic steel and upper installing pipe, lower magnetic steel and lower installing pipe so that upper magnetic steel, Lower magnetic steel can turn an angle.

By using above-mentioned technical proposal, by reserving gaps, it can make it that upper magnetic steel and lower magnetic steel are opposite with upper and lower peace Tubulature can turn an angle, and when fluid flow rate is faster, target piece angle of inclination is bigger so that and upper magnetic steel stress is larger, from And measurement range can be increased.

Preferably, the upper end of the branch pipe is fixedly installed down small flange, the upper flange small flange with passes through bolt It is fixedly connected, is formed under described among small flange and pass through mouth.

By using above-mentioned technical proposal, upper small flange plate is fixed by the lower small flange plate of setting, so that Gauge assembly is obtained to be fixed on branch pipe.

Preferably, the upper small flange and under be provided with gasket between small flange.

By using above-mentioned technical proposal, branch pipe can be sealed by the gasket of setting.

In conclusion the utility model has the advantages that：

1st, fluid can be measured by the gauge assembly on the steel pipe, branch pipe, branch pipe of setting and display device, By upper magnetic steel, the lower magnetic steel of the upper lower flange both sides of setting, when target piece rotates, lower magnetic steel rotates, so as to be produced to upper magnetic steel Raw active force so that upper magnetic steel rotates, and the active force for being subject to upper magnetic steel by connecting rod is delivered to force cell, and dynamometry passes Electric signal is delivered to display device and carries out display numerical value by sensor, and active force biography is carried out by the upper magnetic steel and lower magnetic steel of setting Send, substituted for foil gauge, so that flowmeter is less likely to be damaged, service life is longer；

2nd, by the isolation board of setting, branch pipe upper end can be sealed, when side is measured, fluid enters branch pipe, by every Blocked from plate, so as to avoid the leakage of fluid, while liquid avoids the influence to branch pipe uppermost sensor；

3rd, by reserving gaps, upper magnetic steel and lower magnetic steel can be allowd to rotate certain angle relative to upper and lower installing pipe Degree, when fluid flow rate is faster, target piece angle of inclination is bigger so that upper magnetic steel stress is larger, so as to increase measurement range.

Brief description of the drawings

Fig. 1 is the sectional view of existing target type meter；

Fig. 2 is the sectional view of Magnetic isolation target type meter；

Fig. 3 is the structure diagram of prominent cylinder and gauge assembly in Magnetic isolation target type meter；

Fig. 4 is the structure diagram that small flange passes through mouth under being protruded in Magnetic isolation target type meter；

Fig. 5 is the structure diagram of prominent gauge assembly in Magnetic isolation target type meter；

Fig. 6 is the structure diagram of prominent partition plate in Magnetic isolation target type meter.

Reference numeral：1st, cylinder；11st, steel pipe；111st, ring flange；12nd, branch pipe；121st, small flange under；1211st, mouth is passed through； 2nd, gauge assembly；21st, upper small flange；211st, gasket；212nd, isolation board；213rd, deep gouge；22nd, lower installing pipe；23rd, detection is single Member；231st, rotation axis；232nd, target knock-off joint；2321st, spliced eye；233rd, upper target bar；234th, lower target bar；235th, target piece；236th, under Magnet steel；24th, upper installing pipe；25th, sensing unit；251st, upper magnetic steel；252nd, sensor connector；253rd, force cell；254th, even Extension bar；3rd, display device；31st, signal processor；32nd, display;

1 ', cylinder；233 ', target bar；235 ', target piece；253 ', force cell；254 ', connecting rod；255 ', foil gauge； 3 ', display device；31 ', signal processor；32 ', display.

Embodiment

The utility model is described in further detail below in conjunction with attached drawing, wherein the identical attached drawing of identical parts Mark represents.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down", " bottom Face " and " top surface ", refer to direction in attached drawing, and word " interior " and " outer " are referred respectively to towards or away from particular geometric center Direction.

A kind of Magnetic isolation target type meter, as shown in Fig. 2, including cylinder 1, the gauge assembly being arranged on cylinder 12, with And it is arranged on the display device 3 on gauge assembly 2.

As shown in Figure 3 and Figure 4, cylinder 1 includes horizontally disposed steel pipe 11 and perpendicular to the integrally formed branch of steel pipe 11 Pipe 12, wherein, steel pipe 11 is connected with branch pipe 12, is fixedly installed ring flange 111 at the axial both ends of steel pipe 11, is passed through ring flange 111 are fixed on steel pipe 11 on the pipeline for being connected with fluid.

Small flange 121 under being fixedly installed in the upper end of branch pipe 12, under formed among small flange 121 and pass through mouth 1211, meter Amount component 2 is fixed on down on small flange 121, also, a part is threaded through mouth 1211, is measured in steel pipe 11.

As shown in Figure 4 and Figure 5, gauge assembly 2 includes upper small flange 21, is fixed on the lower installing pipe of small 21 side of flange 22nd, the detection unit 23 that is arranged in lower installing pipe 22, be fixed on small flange 21 and upper away from lower installing pipe 22 Installing pipe 24 and the sensing unit 25 being arranged in installing pipe 24.

Upper small flange 21 is fixed on down on small flange 121 by using bolt, and lower installing pipe 22 passes through down small flange 121 It is in by mouth 1211 inside branch pipe 12；In order to which when fluid flows into steel pipe 11, inside is in sealing state, the small flange under Gasket 211 is provided between 121 and upper small flange 21, upper small 21 center section of flange closure, forms isolation board 212（Such as Fig. 6 It is shown）.

Detection unit 23 includes being fixed in lower installing pipe 22 and the rotation axis axially vertical with lower installing pipe 22 231st, upper target bar 233, the lower target that target knock-off joint 232, the target knock-off joint 232 being rotatablely connected in rotation axis 231 are provided at both ends with Bar 234 and the target piece 235 for being arranged on lower 234 end of target bar.

Rotation axis 231 is arranged on the one end of lower installing pipe 22 away from upper small flange 21, and target knock-off joint 232 is opened at vertical both ends Equipped with spliced eye 2321, be interference fitted has upper target bar 233 and lower target bar 234 respectively, and upper target bar 233 is in close to upper small flange 21 Side, the lower end of lower target bar 234 extended in steel pipe 11, and target piece 235 is fixedly installed in the lower end of lower target bar 234, wherein, Rotation axis 231 is parallel with target piece 235 and all perpendicular to the axis direction of steel pipe 11, when flowing through fluid in steel pipe 11, target piece 235 Swing and drive lower target bar 234 to swing, target knock-off joint 232 is rotated along rotation axis 231, so as to drive target bar 233 to rotate.

Lower magnetic steel 236 is fixedly installed close to one end of upper small flange 21 in upper target bar 233, lower magnetic steel 236 is in cylinder, The upper magnetic steel 251 coordinated with lower magnetic steel 236 is provided with close to one end of upper small flange 21 in upper installing pipe 24.

In machine-shaping, upper target bar 233 is remained unchanged with 236 specification of lower magnetic steel, so as to save the time, lower target bar 234 length change, so as to which the flowmeter of different size is made, since upper target bar 233 and 236 specification of lower magnetic steel are kept It is constant, only play 234 length of target bar to change, manufacture easy to process, and manufacture cost can be lowered.

Sensing unit 25 include be fixed on sensor connector 252 of the installing pipe 24 away from upper small 21 one end of flange, The force cell 253 set in sensor connector 252 and the connecting rod 254 being connected with force cell 253, are connecting The one end of bar 254 away from force cell 253 is fixedly connected with upper magnetic steel 251.

Gap is all left between lower magnetic steel 236 and lower installing pipe 22, upper magnetic steel 251 and upper installing pipe 24, passes through preset slot Gap, can allow upper magnetic steel 251 and lower magnetic steel 236 to turn an angle relatively with upper installing pipe 24, lower installing pipe 22, when When fluid flow rate is faster, 235 angle of inclination of target piece is bigger so that 251 stress of upper magnetic steel is larger, so as to increase measurement model Enclose.

Upper magnetic steel 251 is identical with the side magnetic pole that lower magnetic steel 236 is close to each other, that is, is all N poles or is all S poles；Upper In 233 rotation process of target bar lower magnetic steel 236 can be driven to turn an angle, according to the principle of magnetic field homopolar-repulsion, in lower magnetic After steel 236 rotates, the side magnetic induction line close to upper magnetic steel 236 can become close so that and upper magnetic steel 251 rotates, but due to upper magnetic steel 251 are fixed on force cell 253 by connecting rod 254, and upper magnetic steel 251 is rotated to the direction identical with lower magnetic steel 236, are led to Cross connecting rod 254 and the active force that upper magnetic steel 251 is subject to is delivered to force cell 253, so as to pass out electric signal.

In order to enable the active force between upper magnetic steel 251 and lower magnetic steel 236 is stronger, isolation board 212（As shown in Figure 6）Thickness Degree is forming deep gouge 213 less than the thickness of upper small flange 21 close to the side of upper magnetic steel 251（As shown in Figure 6）, upper installing pipe 24 Positioned at deep gouge 213（As shown in Figure 6）It is interior.

As shown in Fig. 2, display device 3 is fixedly installed above sensor connector 252, display device 3 is included to electric signal The signal processor 31 handled and the display 32 shown to the signal after processing.

When in use, steel pipe 11 is connected on pipeline by ring flange 111, when through-flow body in pipeline, fluid flows through The inner side of steel pipe 11, produces target piece 235 impact force, and target piece 235 flows through direction offset to fluid, drives lower target bar 234 and upper target Bar 233 is rotated along rotation axis 231, so as to drive lower magnetic steel 236 to be angularly offset, passes through magnetic on magnetic field interaction force 251 Forced rotation of steel, active force are transferred to force cell 253 by connecting rod 254, then by signal processor 31, finally Shown by display 32.

The utility model, carries out active force transmission by the upper magnetic steel 251 and lower magnetic steel 236 of setting, substituted for foil gauge, So that flowmeter is less likely to be damaged, service life is longer.

This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but As long as all protected in the right of the utility model be subject to Patent Law.

Claims (8)

1. a kind of Magnetic isolation target type meter, including steel pipe（11）, perpendicular to steel pipe（11）The branch pipe of setting（12）, be arranged on branch Pipe（12）On gauge assembly（2）And it is arranged on gauge assembly（2）On display device（3）, it is characterized in that：

The gauge assembly（2）Including being arranged on branch pipe（12）Away from steel pipe（11）The upper small flange of one end（21）, in upper small method It is blue（21）The lower installing pipe that both sides are fixedly installed respectively（22）And upper installing pipe（24）, the lower installing pipe（22）It is plugged on branch Pipe（12）It is interior；

The lower installing pipe（22）Interior rotational support has target bar（233,234）, target bar（234）Lower end is located at steel pipe（11）It is interior and solid Surely it is connected with target piece（235）, the target piece（235）With steel pipe（11）It is axially vertical；

In upper installing pipe（24）Upper end is fixedly installed force cell（253）, the installing pipe on described（24）Interior, force-measuring sensing Device（253）Lower end is fixed with connecting rod（254）, in upper small flange（21）Both sides be respectively arranged with and target bar（233）Fixed Lower magnetic steel（236）With with connecting rod（254）Fixed lower magnetic steel（236）.

2. Magnetic isolation target type meter according to claim 1, it is characterized in that：

The lower magnetic steel（236）With upper magnetic steel（251）Side close to each other is all N poles or is all S poles.

3. Magnetic isolation target type meter according to claim 2, it is characterized in that：

In upper magnetic steel（251）With lower magnetic steel（236）Between the upper small flange（21）Center section closure, formed be used for it is close Seal branch pipe（12）Isolation board（212）.

4. Magnetic isolation target type meter according to claim 3, it is characterized in that：

The isolation board（212）Thickness be less than upper small flange（21）The thickness of peripheral part, close to upper magnetic steel（251）One Side forms deep gouge（213）, the upper magnetic steel（251）In deep gouge（213）It is interior.

5. Magnetic isolation target type meter according to claim 4, it is characterized in that：

The lower installing pipe（22）Upper remote small flange（21）One end fixed setting be parallel to target piece（235）Rotation axis （231）, rotation axis（231）On be arranged with the target knock-off joint that can be rotated（232）, the target bar（233,234）Including with target bar Connector（232）The upper target bar of both ends interference fit（233）With lower target bar（234）, the upper target bar（233）With lower magnetic steel（236） It is fixed, the lower target bar（234）With target piece（235）It is fixed.

6. Magnetic isolation target type meter according to claim 5, it is characterized in that：

The upper magnetic steel（251）With upper installing pipe（24）, lower magnetic steel（236）With lower installing pipe（22）Between leave gap so that Upper magnetic steel（251）, lower magnetic steel（236）It can turn an angle.

7. Magnetic isolation target type meter according to claim 1, it is characterized in that：

The branch pipe（12）Upper end be fixedly installed down small flange（121）, the upper small flange（21）The small flange with（121） It is bolted to connection, small flange under described（121）Centre forms and passes through mouth（1211）.

8. Magnetic isolation target type meter according to claim 7, it is characterized in that：

The upper small flange（21）The small flange with（121）Between be provided with gasket（211）.