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Rotary flowermeter

A flowmeter and rotary technology, applied in the field of rotary flowmeter devices, can solve problems such as insufficient signal volume, insufficient frequency and rotational speed of electrical signals, damage to the flowmeter, etc., and achieve an effective cleaning effect

Inactive Publication Date: 2008-10-29
CALEFFI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Considering today's trend to use more plastic materials for the rotor or impeller and the various supports, all this leads to more wear, especially of the rear support on the outlet side, and thus further damage to the flowmeter ; moreover, it may lead to insufficient semaphore at low flow values ​​or insufficient frequency and speed values ​​of electrical signals at low speeds

Method used

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  • Rotary flowermeter
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Examples

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Embodiment Construction

[0034] Such as figure 1 As shown in -3, the flow meter includes a pipe body 10 molded from plastic material, the pipe body 10 has a fluid inlet port 11 and a fluid outlet port 12, the fluid outlet port 12 is opposite to the inlet port 11 and axially alignment.

[0035] The tube body 10 defines a central cavity 13 , and the magnetic rotor 14 is idly supported in the central cavity 13 of the tube body 10 . The reference number 15 in several figures is also used to denote a side cavity housing an electromagnetic inductor 16, for example a "hall" type probe, which is subjected to the rotation of the magnetic rotor 14 The generated magnetic field; the cavity 15 for accommodating the inductor is arranged tangentially to the tube body 10 and extends on the longitudinal side of the axis of rotation of the rotor 14 with a width greater than the width of the ring magnet 18 .

[0036] As shown in more detail in Fig. 4, the rotor 14 comprises an elongated core element 17, and a set of r...

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PUM

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Abstract

The invention relates to a flowmeter device, comprising a tubular casing (10). The tubular casing (10) comprises an inlet side (11) for going through a central chamber (13) and an exit end. In the central chamber (13), a fluid actuated magnetic rotor (17) idles to circularly drive a magnetic sensor (16) arranged in a cavum (15). The cavum (15) is arranged on one side of the tubular casing (10). The rotor comprises: an elongated main part outward emanating toward to a fluid egress point; and a columned magnet (18) which polarizes in a shape of radial pattern and has opposite polarities (N, S). A flowdiverter (23) is arranged on intake side of the central chamber (13) to make fluid rotate and support an end axle (20) of the rotor (17). And a rotor spindle (21) on outlet side is supported by a shaft (27). The shaft (27) radially extends in the inner side of the tubular casing (10) of the flowmeter device.

Description

technical field [0001] The present invention relates to a rotary flow meter device, in particular to a device for measuring flow or fluid flow, this type of flow meter device comprises a tube body provided with a cavity for a magnetic rotor, said The magnetic rotor is idled by the fluid to induce a magnetic inductor capable of providing an electrical signal having a frequency proportional to the number of poles of the rotor and the rotational speed of the rotor, the electrical signal being dependent on the flow of the fluid along the tube of the flowmeter device The flow that flows through the channel path that contains the cavity above. Background technique [0002] Rotary flow meters are well known and are used for example in heating installations or other hydraulic applications, for example on small wall-mounted gas boilers, to provide a control signal for fluid circulation or an indication of a flow signal . [0003] Examples of flow meters are described in GB-A-100850...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/115G01F15/00
CPCG01F1/10G01F1/115
Inventor M·卡莱菲
Owner CALEFFI