JPS59134021U

JPS59134021U - electromagnetic flowmeter detector

Info

Publication number: JPS59134021U
Application number: JP2579383U
Authority: JP
Inventors: 尚吉田
Original assignee: 株式会社東芝
Priority date: 1983-02-25
Filing date: 1983-02-25
Publication date: 1984-09-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の電磁流量計検出器の電極部の構造例を示
す断面図、第２図ａ、　　ｂおよび第３図は本考案−実
施例の電磁流量計検出器を示し、第２図ａは検出器の断
面図、第２図すは第２図ａを測定管の正面から見た図、
第３図は電極部の詳細断面図、第４図乃至第７図ａ、　
　ｂはそれぞれ本考案による電磁流量計検出器の電極部
のそれぞれ異なる変形例を示す断面図または外観図であ
る。１１・・・・・・測定管、１２・・・・・・外筒、５４
・・・・・・コイノー、５５・・・・・・磁極、１３・
・・・・・電極、１３ａ・・・・・・電極頭部、１３ｂ
・・・・・・円錐部、２１・・・・・・電極取付穴、２
１ａ・・・・・・段部エツジ、２１ｂ・・・・・・測定
管外面側のエツジ、２２・・・・・・大径部、１６・・
・・・・リード線、１９・・・・・・電極室、１７・・
・・・・電極頭部、１８・・・・・・締付プラグ、１８
ａ・・・・・・円錐部、３１・・・・・・電極取付穴、
３２・・・・・・大径穴、３４・・・・・・円錐部、３
５・・・・・・電極、３５ａ・・・・・・電極頭部、３
６・・・・・・中径部、３６ａ・・・・・・エツジ、４
１・・・・・・電極取付穴、４３・・・・・・電極、４
３ａ・・・・・・電極頭部、４４・・・・・・皿ばね状
の鍔。）　　　　ノ　　　　　　　ｌ−／／Ｆ＝二二二二１　　、Fig. 1 is a sectional view showing an example of the structure of the electrode part of a conventional electromagnetic flowmeter detector, Figs. Figure 2a is a cross-sectional view of the detector, Figure 2 is a view of Figure 2a viewed from the front of the measuring tube,
Figure 3 is a detailed sectional view of the electrode section, Figures 4 to 7a,
2b is a sectional view or an external view showing different modifications of the electrode part of the electromagnetic flowmeter detector according to the present invention, respectively; FIG. 11...Measuring tube, 12...Outer cylinder, 54
... Kohino, 55 ... Magnetic pole, 13.
... Electrode, 13a ... Electrode head, 13b
...Conical part, 21... Electrode mounting hole, 2
1a...Stepped edge, 21b...Edge on the outer surface side of the measuring tube, 22...Large diameter part, 16...
... Lead wire, 19 ... Electrode chamber, 17 ...
... Electrode head, 18 ... Tightening plug, 18
a... Conical part, 31... Electrode mounting hole,
32... Large diameter hole, 34... Conical part, 3
5... Electrode, 35a... Electrode head, 3
6...Medium diameter part, 36a...Edge, 4
1... Electrode mounting hole, 43... Electrode, 4
3a...electrode head, 44...disc spring-shaped collar. ) no l−// F=22221,

Claims

[Scope of utility model registration request]

(1) A measurement tube made of ceramic that is inserted into an outer cylinder made of a magnetic material and has strength enough to withstand the pressure of the fluid to be measured flowing inside, and a magnetic field generator that generates a magnetic field perpendicular to the measurement tube; In an electromagnetic flowmeter detector having a pair of corrosion-resistant metal electrodes attached to the measuring tube at positions perpendicular to the magnetic field and the axis of the measuring tube, the magnetic field between the ceramic measuring tube and the electrodes is Airtightness is provided by a stepped electrode mounting hole drilled in the measuring tube and having a large diameter on the inner wall side of the measuring tube, and a conical portion connected to the head with a head fitted inside the large diameter part of the electrode mounting hole. An electromagnetic flowmeter detector, characterized in that the electromagnetic flowmeter detector is held by a direct pressure contact structure formed by an electrode that is in pressure contact with the stepped edge of the electrode mounting hole.

(2) Airtightness between the ceramic measuring tube and the electrode is provided by an electrode in which a hole with a large diameter on the inner wall of the measuring tube and a hole with a small diameter on the outer wall are connected by a conical part. A mounting hole, an electrode whose head is fitted into the large-diameter hole of the electrode mounting hole, and a terminal edge of a medium-diameter portion connected to the head via a step is brought into pressurized contact with the conical portion of the electrode mounting hole. The electromagnetic flowmeter detector according to claim 1, which is held by a direct pressurized contact structure formed of.

(3) The airtightness between the ceramic measurement tube and the electrode is ensured by an electrode mounting hole drilled in the measurement tube, and a head fitted into the tube inner wall side of the electrode mounting hole, and placed under the neck of the head. Claims for registration of a utility model, characterized in that the formed at least one plate spring-shaped collar is held by a direct pressure contact structure formed with an electrode that is in pressure contact with the electrode mounting hole. The electromagnetic flowmeter detector according to item 1.