CN201503285U

CN201503285U - Novel electromagnetic flow meter

Info

Publication number: CN201503285U
Application number: CN200920151444XU
Authority: CN
Inventors: 苏林波; 张宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-23
Filing date: 2009-04-23
Publication date: 2010-06-09
Anticipated expiration: 2019-04-23

Abstract

The utility model relates to a novel electromagnetic flow meter; two protective covers are symmetrically welded at two sides of a shell of the flow meter, and welded with the shell into a whole; the protective covers are internally provided with electrodes; insulation sleeves arranged outside the electrodes and iron cores are fixed inside the protective covers of the shell; each protective cover is internally provided with two electrodes, one end of which enters the shell, and an insulation pad is arranged between the shell and the ends of the electrodes entering the shell; magnet exciting coils formed by winding enamelled wires are arranged at the outside of the iron cores; and the protective covers are in the shape of a tube and provided with protecting covers that can be opened. As the novel electromagnetic flow meter does not need to be lined with insulating materials such as rubber and the like in a whole shell, the manufacture is convenient, the magnet exciting coils are only arranged at the outer sides of the iron cores, the volume is small, and the material consumption is less; and more particularly, the large-caliber flow meter uses extremely little copper material, so that the cost is greatly reduced. After being improved, the electromagnetic flow meter has simple structure, convenient maintenance and the reduction of manufacturing cost. More particularly for the large-caliber flow meter, the using quantity of the copper material is greatly saved.

Description

A kind of New Electromagnetic Flowmeter

One. technical field

This novel a kind of measuring apparatus, measurement measuring apparatus of various conducting liquid flows in particularly a kind of measuring channel of relating to.

Two. technical background

The electromagnetic flowmeter that uses in the prior art, generally adopt insulating material such as liner rubber is arranged in whole housing, field coil is arranged in hull outside, respectively arrange an electrode 66 in the housing both sides, electrode 66 outsides are by guard shield 31, magnetic cover 32, outer cover 33 coats, as Fig. 4 and Fig. 5 and shown in Figure 6, this structure need whole housing 22 inner lining rubber 11 with reach insulate purpose, its complex process, the cost height, when field coil 44 is arranged in housing 22 outsides, to expend a large amount of copper materials for bigbore flowmeter, with high costs, because electrode is installed in the multilayer guard shield, cause difficulty in case break down just can't take out to maintenance, even the scrapping of complete machine.

Three. summary of the invention

The object of the present invention is to provide a kind of New Electromagnetic Flowmeter (hereinafter to be referred as flowmeter), make it simplified structure, convenient for maintaining reduces manufacturing cost.

The following structure of this novel employing realizes above-mentioned purpose, two guard shields of housing symmetria bilateralis welding, guard shield and housing weldering are one, guard shield is built-in with electrode, external insulation sleeve of electrode and iron core are fixed in the guard shield of instrument housing, and two electrodes are installed in each guard shield, and an end of electrode gos deep in the housing, stretch between electrode one end in the housing and the housing and be equipped with insulating mat, iron core the outside lay the field coil that is entwined with enameled wire; Guard shield is a tubular housing, is equipped with openable protecting cover on the guard shield.

Since this novel electromagnetic flowmeter need be in whole housing insulating material such as liner rubber, easily manufactured, field coil only arranges that in the iron core outside volume is little few with material, and is especially few for bigbore flowmeter copper material consumption, reduces cost greatly.Respectively arrange pair of electrodes in the housing both sides, electrode, iron core and field coil are installed in the guard shield of tubulose, by the protection of guard shield, protecting cover, open protecting cover and can take out electrode, iron core and field coil easily and keep in repair and change.Electromagnetic flowmeter after the improvement, simple in structure, easy to maintenance, reduced manufacturing cost.Particularly saved the consumption of copper material greatly for bigbore flowmeter.

Four. description of drawings

Fig. 1 is the flowmeter structure of invention

Fig. 2 is the A---A cut-open view of Fig. 1

Fig. 3 is the M portion enlarged drawing of Fig. 2

Fig. 4 is existing flowmeter structure figure

The B---B cut-open view of Fig. 5 bitmap 4

Fig. 6 is the N portion enlarged drawing of Fig. 4

Five. embodiment

In this is novel, as Fig. 1, Fig. 2 and shown in Figure 3, two guard shields 6 of housing 1 symmetria bilateralis welding, guard shield 6 is one with housing 1 weldering, and guard shield 6 is built-in with electrode 5, and electrode 5 external insulation sleeves 3 are fixed in the guard shield 6 of instrument housing 1 with iron core 4, in each guard shield 6 two electrodes 5 are installed, one end of electrode 5 gos deep in the housing 1, stretch between electrode 5 one ends in the housing 1 and the housing 1 and be equipped with insulating mat 9, iron core 4 the outside lay the field coil 2 that is entwined with enameled wire; Guard shield 6 is a tubular housing, is equipped with openable protecting cover 7 on the guard shield 6, and protecting cover 7 is fastening by bolt 8 with guard shield 6.Open protecting cover 7 and can take out electrode 5, iron core 4 and field coil 2 easily so that equipment is keeped in repair and changes.

Claims

1. New Electromagnetic Flowmeter, comprise housing, field coil, electrode, it is characterized in that two guard shields of housing symmetria bilateralis welding, guard shield and housing weldering are one, and guard shield is built-in with electrode, and external insulation sleeve of electrode and iron core are fixed in the guard shield of instrument housing, two electrodes are installed in each guard shield, one end of electrode gos deep in the housing, stretch in the housing and be equipped with insulating mat between electrode one end and housing, iron core the outside lay the field coil that is entwined with enameled wire.

2. a kind of electromagnetic flowmeter according to claim 1 is characterized in that: guard shield is a tubular housing, is equipped with openable protecting cover on the guard shield.