JPH01117724U

JPH01117724U -

Info

Publication number: JPH01117724U
Application number: JP817588U
Authority: JP
Priority date: 1988-01-27
Filing date: 1988-01-27
Publication date: 1989-08-09

Description

[Brief explanation of the drawing]

第１図イ及びロは本案の一実施例を示す電磁流
量計検出器の半断面図及びＡ―Ａ′断面図、第２
図は実施例の拡大図、第３図、第４図はプロテク
トスリーブの他の実施例を示す拡大図、第５図は
電極の他の実施例を示す図である。１…金属性導管、２…ライニング、３ａ，３ａ
′〜３，３ｂ…電極、４ａ，４ａ′，４ａ″，
４ｂ…プロテクトスリーブ、５ａ，５ｂ…励磁コ
イル、６…鉄心、７…外筒、８…充填材、９ａ，
９ｂ…アースリング、１０ａ，１０ｂ…短絡線、
１１ａ…フランジ、１２ａ…スプリングワツシヤ
、１３ａ…ねじ、１４ａ…信号引出し線。 Figures 1A and 1B are a half-sectional view and an A-A' cross-sectional view of an electromagnetic flowmeter detector showing an embodiment of the present invention, and
The figure is an enlarged view of the embodiment, FIGS. 3 and 4 are enlarged views showing other embodiments of the protect sleeve, and FIG. 5 is a diagram showing another embodiment of the electrode. 1... Metallic conduit, 2... Lining, 3a, 3a
' ~ 3, 3b...electrode, 4a, 4a', 4a'',
4b...Protect sleeve, 5a, 5b...Excitation coil, 6...Iron core, 7...Outer cylinder, 8...Filler, 9a,
9b...Earth ring, 10a, 10b...Short wire,
11a...Flange, 12a...Spring washer, 13a...Screw, 14a...Signal lead wire.

Claims

[Claims for Utility Model Registration] 1. A pair of conduits for passing a fluid to be measured and an excitation coil that applies a magnetic field in the radial direction of the conduit, which are provided on a conductive surface perpendicular to the direction of the magnetic field and the axial direction of the conduit. An electromagnetic flowmeter consists of an electrode, an outer cylinder that fixes the entire body, and a ground ring that grounds the fluid.
A lining made of a corrosion-resistant insulating material is installed in the axial direction of the tube that comes into contact with the measuring fluid, on the inner surface of the through hole for attaching a pair of electrodes, and on the outer circumferential surface of the conduit, which is integrally molded with a flange part necessary to prevent fluid leakage. An electromagnetic device characterized by having a structure in which a rigid insulating cylinder (hereinafter abbreviated as a protect sleeve) is formed by tightly fitting a metal conduit on the shaft part of the external electrode that does not protrude from the inside of the conduit. Flow meter detector. 2. The electromagnetic flowmeter detector according to claim 1, wherein the protect sleeve is made of a plastic material such as tetrafluoroethylene resin and press-fitted onto the electrode shaft. 3. The electromagnetic flowmeter detector according to claim 1, characterized in that the protect sleeve is made of unfired ceramic and shrink-fitted to the electrode shaft by shrinkage force during main firing.