CN2566230Y

CN2566230Y - Flowmeter

Info

Publication number: CN2566230Y
Application number: CN 02264339
Authority: CN
Inventors: 徐泽山
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-10
Filing date: 2002-09-10
Publication date: 2003-08-13
Anticipated expiration: 2012-09-10

Abstract

The utility model discloses a flow meter which comprises a bottom casing, an upper cover and a rotary wing, wherein the rotary wing is arranged in a rotary cavity between the bottom casing and the upper cover. The utility model is characterized in that a rotor casing body is just arranged above the upper cover, and a synchronous rotor is arranged in a cavity formed between the upper cover and the rotor casing body; the adjacent end surfaces of the rotary wing and the synchronous rotor are respectively provided with magnetic poles which have the opposite polarity; the upper end surface of the synchronous rotor is provided with a magnet, and the rotor casing body is provided with a magnetic sensitive element corresponding to the magnet. The utility model has the advantages that firstly, other components are all separated from the water source except the rotary wing, so that the utility model can not be eroded by water and can not accumulate the dirt to enhance the service life and the measuring precision of the flow meter; secondly, the water quantity measured by inductive elements can save more complex mechanical components, so that the utility model has simple and reasonable structure; thirdly, the utility model has wide application range, so that the utility model not only can be manufactured into a bidirectional flow meter, but also can be manufactured into a single flow meter. The utility model is particularly suitable for a solar energy water heater.

Description

Flowmeter

One, technical field

The utility model relates to a kind of flowmeter, can be used to measure the flow in the solar water heater water tank.

Two, background technology

The range of application of flowmeter is very extensive, and its kind is also extremely various.But the existing flowmeter of measuring the flow of water, its design is not too reasonable, by the rotation metered flow between gear, thereby complex structure, unstable properties, reading out of true, life-span are not long, and relevant simultaneously moving component all places water, soaks easy-to-rust for a long time, when especially existing flowmeter being used for solar water heater, its precision does not reach requirement, and the easy incrustation of moving component, further influences the precision and the serviceable life of flowmeter.

Three, summary of the invention

1, goal of the invention: the purpose of this utility model, provide a kind of simple in structure, reading accurately, serviceable life long flowmeter.

2, technical scheme: for achieving the above object, type double flow meter described in the utility model, comprise drain pan, loam cake and rotor, the drain pan both sides are provided with passage, rotor places revolving in the chamber between drain pan and loam cake, between the passage of its feature drain pan both sides and longitudinal axis one angle is arranged, be loam cake just above be provided with rotor case, synchronous rotor places in the cavity that forms between loam cake and rotor case, the end face adjacent with synchronous rotor at rotor is respectively equipped with opposite polarity magnetic pole, upper surface at synchronous rotor is provided with magnet, is provided with on rotor case and the corresponding magneto sensor of magnet.

Magnet and magneto sensor are the revolutions that is used to measure the synchronous rotor rotation, so they can be respectively luminotron and light activated element.

The passage of drain pan both sides and the sectional area of angle between longitudinal axis and passage can be the same or different.When identical, this flow is counted type double flow meter; Inequality, this flow is counted the one-way flow meter.

Principle of work of the present utility model is: when water enter from the water inlet of flowmeter one side revolve the chamber after, because of an angle α is arranged between intake tunnel and axis,, thereby order about the rotor rotation so current rush at a side of rotor.When rotor rotates, the magnetic pole of end face disposed thereon drives synchronous rotor and does rotation synchronously, and the magnet of synchronous rotor upper surface also rotates thereupon synchronously, and measures the revolution of synchronous rotor by the magneto sensor that is arranged on the rotor case, and then measures the flow of water outlet.The intake tunnel and the exhalant canal of flowmeter both sides are symmetrical arranged, if when asymmetric, are the one-way flow meter.

3, beneficial effect: the utility model compared with prior art, its remarkable advantage is: 1) except that rotor, other parts are all isolated with the water source, thereby are not subjected to the erosion of water, more can incrustation, thereby improved the serviceable life and the measuring accuracy of flowmeter.2) measure the water yield with sensing element, saved comparatively complicated mechanical component, thus simple and reasonable for structure.3) applied range both can be made into type double flow meter, can be made into the one-way flow meter again, was particularly useful for solar water heater.

Four, description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the cross-sectional view of Fig. 1.

Wherein: 1-drain pan, 2-loam cake, 3-rotor, 4-rotor case, 5-synchronous rotor, 6-magnetic pole, 7-magnet, 8-magneto sensor.

Five, embodiment

The type double flow meter of the utility model design comprises drain pan 1, loam cake 2, rotor 3, rotor case 4, synchronous rotor 5, magnetic pole 6, magnet 7 and magneto sensor 8.Loam cake 2 is screwed in the top of drain pan 1, between the chamber of revolving is arranged, rotor 3 is installed in by axle and revolves in the chamber, the symmetria bilateralis of revolving the chamber be provided with intake tunnel and exhalant canal, two passages and axis angle are 30 °.Rotor 3 be shaped as convex, loam cake 2 matches with it, also have one to raise up, rotor case 4 revolves by on the boss on loam cake 2 surfaces, synchronous rotor 5 is installed in the rotor case 4 by axle, at rotor 3 and synchronous rotor 5 adjacent end faces opposite polarity two pairs of magnetic poles 6 are installed, and a magnet 7 are installed, on rotor case 4, be equipped with and magnet 7 corresponding magneto sensors 8 in the upper surface of synchronous rotor 5.

Claims

1, a kind of flowmeter, comprise drain pan (1), loam cake (2) and rotor (3), drain pan (1) both sides are provided with passage, rotor (3) places revolving in the chamber between drain pan (1) and loam cake (2), it is characterized in that between the passage of drain pan (1) both sides and longitudinal axis one angle being arranged, loam cake (2) just above be provided with rotor case (4), synchronous rotor (5) places in the cavity that forms between loam cake (3) and rotor case (4), be respectively equipped with opposite polarity magnetic pole (6) at rotor (3) and the adjacent end face of synchronous rotor (5), upper surface or side at synchronous rotor (5) are provided with magnet (7), are provided with on rotor case (4) and the corresponding magneto sensor of magnet (7) (8).

2, flowmeter according to claim 1 is characterized in that described magnet (7) and magneto sensor (8) can be respectively luminotron and light activated element.

3, type double flow meter according to claim 1 is characterized in that the passage of drain pan (1) both sides and the sectional area of angle between longitudinal axis and passage can be the same or different.