CN216621286U - Electromagnetic water meter sensor with pressure detection function - Google Patents

Abstract

The utility model provides an electromagnetic water meter sensor with pressure detection, which comprises a pressure sensor, a sealing gasket, a lining, a flow guide pipe, a pair of measuring electrodes, a flange, a grounding hole, an excitation coil, a pole shoe, a magnetic yoke and a shell, wherein the lining is arranged on the inner side of the flow guide pipe; the lining has no flanging and is flush with the boss surface of the flange; the lining is provided with a grounding hole; a pair of measuring electrodes are symmetrically assembled at the electrode hole position of the flow guide pipe; the magnetic yoke is sleeved on the periphery of the flow guide pipe; two excitation coils are symmetrically arranged outside the flow guide pipe; the pole shoe is welded and fixed on the flow guide pipe; the interior of the pole shoe is of a hollow structure; the pressure sensor is fastened on the flow guide pipe through a threaded connector, sealing between the pressure sensor and the flow guide pipe is guaranteed through the sealing gasket, and the flow guide pipe is provided with a drainage hole for conducting media to a measuring end of the pressure sensor. The utility model adopts polytetrafluoroethylene as lining material, hollows out the interior of the pole shoe, and adds the pressure sensor with the built-in threaded interface, so that the electromagnetic water meter sensor of the type can be widely popularized.

Description

Electromagnetic water meter sensor with pressure detection function

Technical Field

The utility model relates to the field of electromagnetic water meters, in particular to an electromagnetic water meter sensor with pressure detection, which belongs to the main component of an electromagnetic water meter.

Background

The electromagnetic water meter is manufactured according to the Faraday electromagnetic induction principle, the electromagnetic water meter is determined to be less influenced by bubbles and structures according to the principle, and the water meter is high in metering accuracy, free of flow blocking parts, sanitary, environment-friendly and has great advantages in the application of industries such as tap water supply and the like.

The electromagnetic water meter with the pressure measurement function in the market has already provided a plurality of styles, generally, the electromagnetic water meter with the pressure measurement function is provided with a short circuit or a pressure measurement outlet on a flange and a flow guide pipe, so that the installation requirement is more complicated, and the electromagnetic water meter is easy to collide and damage. Aiming at the increase of the phenomena, a built-in pressure sensor structure is developed secondarily on the basis of the electromagnetic water meter sensor.

Disclosure of Invention

The utility model aims to provide an electromagnetic water meter sensor with a pressure detection function, which adopts polytetrafluoroethylene as a lining material, hollows out the interior of a pole shoe, and adds a pressure sensor with a built-in threaded interface, so that the electromagnetic water meter sensor can be widely popularized.

In order to achieve the above object, the technical solution of the present invention is as follows:

the utility model provides a take pressure measurement's electromagnetism water gauge sensor, includes pressure sensor, sealed pad, lining, honeycomb duct, a pair of measuring electrode, flange, earthing hole, excitation coil, pole shoe, yoke, shell, its characterized in that: a lining is arranged on the inner side of the flow guide pipe; the lining material is polytetrafluoroethylene; the lining is not provided with a flanging and is flush with the boss surface of the flange; the lining is provided with a grounding hole; the pair of measuring electrodes are symmetrically assembled at the electrode hole position of the flow guide pipe; the magnetic yoke is sleeved on the periphery of the flow guide pipe; two excitation coils are symmetrically arranged on the outer side of the flow guide pipe; the pole shoe is welded and fixed on the flow guide pipe; the interior of the pole shoe is of a hollow structure; the pressure sensor is fastened on the flow guide pipe through a threaded connector, and the sealing between the pressure sensor and the flow guide pipe is ensured by using a sealing gasket; the honeycomb duct is provided with a drainage hole for guiding the medium to the measuring end of the pressure sensor.

The beneficial effects of the utility model are:

(1) according to the electromagnetic water meter sensor with the pressure detection function, the pressure sensor is arranged inside the electromagnetic water meter sensor, so that the production and field installation difficulty is reduced;

(2) the electromagnetic water meter sensor with the pressure detection function increases the pressure measurement performance, so that the product functions are more diversified.

(3) The electromagnetic water meter sensor with the pressure detection function has the advantages that the parts are miniaturized, the production cost is effectively reduced, and the batch popularization is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of an electromagnetic water meter sensor with pressure detection according to the present invention.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following description of the embodiments and the accompanying drawings.

As shown in figure 1: because excitation coil, pole shoe, measurement electromagnetism symmetric distribution have only marked one side in the picture, a take pressure measurement's electromagnetism water gauge sensor, including pressure sensor (1), sealed pad (2), lining (3), honeycomb duct (4), measuring electrode (5), flange (9), earthing hole (10), excitation coil (11), pole shoe (13), yoke (12), shell, wherein:

a lining is arranged on the inner side of the flow guide pipe;

the lining material is polytetrafluoroethylene;

the lining is not provided with a flanging and is flush with the boss surface of the flange;

the lining is provided with a grounding hole;

the pair of measuring electrodes are symmetrically assembled at the electrode hole position of the flow guide pipe, and are fastened by a locking nut (7) after passing through an insulating gasket (8) and a disc spring (6), so that the sealing effect is achieved;

the magnetic yoke is sleeved on the periphery of the flow guide pipe;

two excitation coils are symmetrically arranged on the outer side of the flow guide pipe and are placed in the middle;

the pole shoe is welded and fixed on the flow guide pipe; the interior of the pole shoe is of a hollow structure;

the excitation coil, the pole shoe and the magnetic yoke arranged on the outer side form a closed-loop magnetic circuit, and a strong constant magnetic field can be generated after excitation current is introduced.

The pressure sensor is fastened on the flow guide pipe through a threaded interface and is sealed by a sealing gasket; the honeycomb duct be equipped with the drainage hole with the medium drainage to pressure sensor measurement end.

The assembly process of the present invention is as follows:

cooling and deforming the liner, and inserting the liner into the inner side of the flow guide pipe to form interference fit, wherein two ends of the liner are flush with the flange boss surface; then a pair of measuring electrode tensioning liners are symmetrically assembled on electrode holes of the flow guide pipe and tightly attached to the wall of the flow guide pipe, and the measuring electrode tensioning liners are fastened by a locking nut after passing through an insulating gasket and a disc spring to achieve a sealing effect; the two excitation coils are symmetrically and centrally arranged outside the flow guide pipe, a pole shoe with a larger volume is arranged inside the excitation coils and welded and fixed on the flow guide pipe, a hollow mechanism in the pole shoe and a magnetic yoke on the outer side form a closed-loop magnetic circuit, and a stronger constant magnetic field can be generated after excitation current is introduced; the positions of the lining and the measuring electrode which are vertical are respectively provided with a small hole, and a medium is introduced into the measuring end of the pressure sensor through the drainage hole above the small hole; the shell seals the parts of the whole magnetic circuit into a cavity, and the lead is led out from the outlet and can form a complete electromagnetic water meter with the converter part.

5 sample machines are manufactured according to the structure, and all performance indexes meet all industrial standard requirements of the electromagnetic water meter through strict laboratory tests such as pressure resistance, high and low temperature, actual flow measurement and the like.

Claims (1)

1. The utility model provides a take pressure measurement's electromagnetism water gauge sensor, includes pressure sensor, sealed pad, lining, honeycomb duct, a pair of measuring electrode, flange, earthing hole, excitation coil, pole shoe, yoke, shell, its characterized in that: a lining is arranged on the inner side of the flow guide pipe; the lining material is polytetrafluoroethylene; the lining is not provided with a flanging and is flush with the boss surface of the flange; the lining is provided with a grounding hole; the pair of measuring electrodes are symmetrically assembled at the electrode hole position of the flow guide pipe; the magnetic yoke is sleeved on the periphery of the flow guide pipe; two excitation coils are symmetrically arranged outside the flow guide pipe; the pole shoe is welded and fixed on the flow guide pipe; the interior of the pole shoe is of a hollow structure; the pressure sensor is fastened on the flow guide pipe through a threaded connector, and the sealing between the pressure sensor and the flow guide pipe is ensured by using a sealing gasket; the honeycomb duct is provided with a drainage hole for guiding the medium to the measuring end of the pressure sensor.

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