CN206348024U - A kind of high-precision digital-display magnet ring propeller flowmeter - Google Patents

Abstract

The utility model discloses a kind of high-precision digital-display magnet ring propeller flowmeter.The utility model integrally uses macromolecule non-magnet_conductible material, wherein impeller is made up of rubber tree leaf and magnet ring, after fluid enters to become a mandarin chamber by air deflector, impact impeller produces moment of torsion, and magnet ring is rotated, magnetic flux changes, the rotating speed of impeller is related to fluid flow, and the size of magnetic flux is relevant with wheel speed, reflects the flow of fluid, by Magnetosensing element and digital simulation amount module, fluid flow can be provided with the form of digital display.The utility model has small power consumption, flow pulsation is low, simple in construction, measurement accuracy is high, numerical monitor the features such as.

Description

A kind of high-precision digital-display magnet ring propeller flowmeter

Technical field

The utility model industrial instruments, are related to a kind of new high-precision digital-display magnet ring propeller flowmeter.

Background technology

Flow is to reflect one of fundamental physical quantity of flow of fluid situation, and fluid measurement is the section for studying material quantitative change Learn, it is listed as three big detection parameters of fluid with pressure, temperature.For certain fluid, as long as being aware of these three parameters, Its energy having can just be calculated.In industry spot, the instrument of measurement fluid flow is referred to as flowmeter.Flowmeter is industry One of most important instrument in measurement, it be widely used in metallurgy, electric power, coal, chemical industry, be have, traffic, building, light textile, The national economy every field such as food, medicine, agricultural, environmental protection and people's daily life, are development industrial and agricultural productions, save The energy, is improved production quality, the important tool increased economic efficiency with managerial skills, and important ground is occupied in national economy Position.

At present, the flowmeter used has been put into and reaches nearly hundred kinds, is had according to its measuring principle：Mechanics principle, electricity are former Reason, Principles of Acoustics, calorifics principle, optical principle, Atomic Physics principle etc. form.According to most extensive, most popular at present point Class method, can be divided into：Volumetric flowmeter, differential pressure flowmeter, suspended body flowmeter, vane-wheel type flowmeter, inductance flowmeter, stream Oscillation body flowmeter, ultrasonic flowmeter, mass flowmenter, inserting-type flowmeter, open-channel meter and other flowmeters.

In recent years, the research of vane-wheel type flowmeter never has interruption, and towards low-power consumption, low voltage difference, high accuracy, numeral are aobvious Show etc. that direction is developed, focus on the innovation of blade wheel structure, flow monitoring system and digital secondary meter.

The content of the invention

There is provided a kind of high accuracy that flow is measured based on magnetic flux change in view of the shortcomings of the prior art for the utility model Vane-wheel type flowmeter.

Technical solution adopted in the utility model：

The utility model includes preceding air deflector, rear air deflector, housing and impeller, and the two ends of housing are separately provided for surely Determine the preceding air deflector and rear air deflector of fluid flow fields, housing is built with impeller, in addition to sense Magnetic Sensor, described sense magnetic sensing Device is just set to impeller, and the output end of sense Magnetic Sensor is connected by analog/digital module with digital quantity display module, the leaf Wheel carries magnet ring.

The utility model is proposed a kind of new on the basis of analysis vane-wheel type flowmeter development trend and performance characteristics Low-power consumption digital display high-precision magnet ring propeller flowmeter, it has small power consumption, and flow pulsation is low, simple in construction, measurement accuracy is high, number The features such as word is shown, this is undoubtedly significant for improving systematic function.

Brief description of the drawings

Fig. 1：The utility model structural representation；

Fig. 2 a：Impeller front view；Fig. 2 b：Impeller side view；

Fig. 3：Air deflector schematic diagram；

In figure：Air deflector after air deflector before 1- impellers, 2-, 3-, 4- sense Magnetic Sensors, 5- analog/digital modules, 6- shells Body, 7- digital quantity display modules, 8- magnet rings, 9- blades, 10- impeller axles, 11- bearing holes, 12- guide vanes.

Embodiment

Principle of the present utility model, structure are described further below in conjunction with accompanying drawing.

As shown in figure 1, the measurement structure of this flowmeter is made up of preceding air deflector 2, rear air deflector 3, housing 6 and impeller 1, its In preceding air deflector 2, rear air deflector 3, housing 6 material be ABS high molecule plastics, after fluid is by preceding air deflector 2 enter shell Body 6, preceding air deflector 2 and rear air deflector 3 can make fluid produce stable flow field.Fluid impact impeller 1 produces moment of torsion, makes impeller 1 Rotate.Impeller 1, which is rotated, causes changes of magnetic field.Magnetic flux size is relevant with fluid flow, and magnetic flux is measured by feeling Magnetic Sensor 4 Size, and by analog/digital module 5 and digital quantity display module 7, the flow of fluid can be provided with digital quantity, flow Meter is overall to use macromolecule non-magnet_conductible material.

As shown in Figure 2 a and 2 b, the impeller 1 of flowmeter is mainly made up of magnet ring 8, blade 9 and impeller axle 10.Blade 9 Material be rubber, the material of impeller axle is ABS, and after impeller 1 is rotated, the rotation of magnet ring 8 causes changes of magnetic field, magnetic flux Size is related with fluid flow.

As shown in figure 3, this figure is the schematic diagram of preceding air deflector 2 and rear air deflector 3, the material of preceding air deflector 2 and rear air deflector 3 Expect for ABS plastic, to be made up of guide vane 12 and bearing hole 11, bearing hole 11 is used for fixing impeller 1.Preceding air deflector 2 is led with after Stream device 3 staggers certain angle, can be with the flow field of stabilized fluid.

Claims (1)

1. a kind of high-precision digital-display magnet ring propeller flowmeter, including preceding air deflector, rear air deflector, housing and impeller, the two of housing End is separately provided for the preceding air deflector and rear air deflector in stabilized fluid flow field, and housing is built with impeller, it is characterised in that：Also Including sense Magnetic Sensor, described sense Magnetic Sensor is just set to impeller, and the output end of sense Magnetic Sensor passes through analog/digital mould Block is connected with digital quantity display module, and the impeller carries magnet ring.