JPS58809Y2 - electromagnetic flowmeter detector - Google Patents
electromagnetic flowmeter detectorInfo
- Publication number
- JPS58809Y2 JPS58809Y2 JP2081978U JP2081978U JPS58809Y2 JP S58809 Y2 JPS58809 Y2 JP S58809Y2 JP 2081978 U JP2081978 U JP 2081978U JP 2081978 U JP2081978 U JP 2081978U JP S58809 Y2 JPS58809 Y2 JP S58809Y2
- Authority
- JP
- Japan
- Prior art keywords
- conduit
- outer casing
- lining
- magnetic
- electromagnetic flowmeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Measuring Volume Flow (AREA)
Description
【考案の詳細な説明】
本考案は電磁流量計に係り、特に非磁性導管に対向して
取付けた1対の電極と、前記1対の電極を結ぶ線および
前記導管の軸線に対して直角に磁界を作用する励磁コイ
ルと、両端にフランジを有し、かつ磁束の帰路を形成す
る磁性体外筐を有する電磁流量計検出器に関する。[Detailed Description of the Invention] The present invention relates to an electromagnetic flowmeter, in particular, a pair of electrodes installed opposite to each other in a non-magnetic conduit, and a line connecting the pair of electrodes and a line perpendicular to the axis of the conduit. The present invention relates to an electromagnetic flowmeter detector having an excitation coil that applies a magnetic field, and a magnetic outer casing that has flanges at both ends and forms a return path for magnetic flux.
この種電磁流量計検出器として、外筐を鋳物、非磁性導
管として樹脂等熱応力に耐えられない材質を適用する場
合、導管を外筐に鋳込んだり溶接したり出来ないので、
両者は嵌合挿入しなくてはならない。When using this type of electromagnetic flowmeter detector with a cast metal outer casing or a non-magnetic conduit made of a material that cannot withstand thermal stress, such as resin, the conduit cannot be cast or welded into the outer casing.
Both must be inserted and fitted.
この場合、外筐と導管との熱的または機械的応力を吸収
すべく、両者の嵌合は導管軸線方向に機械的逃げを形成
し、かつ気密を保持するためオーリングなどを介在させ
ている。In this case, in order to absorb thermal or mechanical stress between the outer casing and the conduit, the fitting of the two forms a mechanical relief in the axial direction of the conduit, and an O-ring or the like is interposed to maintain airtightness. .
しかるにこのような構造では十分な気密がとれないばか
りか、機械的強度が弱り、シかも組立作業も煩雑になる
欠点がある。However, such a structure not only does not provide sufficient airtightness, but also has the disadvantage that mechanical strength is weakened, and assembly work is complicated.
本考案は上記欠点を除去するため、導管を磁性体外筐内
に嵌合挿入する形成の電磁流量計検出器において、導管
の両端が前記外筐と接する境界部の外筐内面に円周溝を
形成して、この溝内に緩衝材を挿入し、かつライニング
を施すことにより、気密性がよく、かつ導管および外筐
間の熱的または機械的応力を十分に吸収することができ
、さらに、緩衝材をライニング材と同材質で一体に形成
することにより組立工数を軽減しうる電磁流量計検出器
を提供するものである。In order to eliminate the above-mentioned drawbacks, the present invention provides an electromagnetic flowmeter detector in which a conduit is fitted and inserted into a magnetic outer casing. By forming a groove, inserting a cushioning material into the groove, and lining the groove, it is possible to achieve good airtightness and to sufficiently absorb thermal or mechanical stress between the conduit and the outer casing. An object of the present invention is to provide an electromagnetic flowmeter detector that can reduce assembly man-hours by integrally forming a buffer material and a lining material from the same material.
以下、本考案の一実施例について図面を参照して説明す
る。An embodiment of the present invention will be described below with reference to the drawings.
第1図において10は非磁性導管であり、これを鉄心を
兼ねる磁性の外筐11の内部に嵌合挿入している。In FIG. 1, numeral 10 denotes a non-magnetic conduit, which is fitted and inserted into the inside of a magnetic outer casing 11 which also serves as an iron core.
この外筐11は励磁コイル12の収納部11 aを除い
て導管10に略密接し、かつ両端部に例えば外筐11と
同材質のフランジ11b。This outer casing 11 is in substantially close contact with the conduit 10 except for the housing portion 11a of the excitation coil 12, and has flanges 11b made of the same material as the outer casing 11, for example, at both ends.
11 bを一体に形成している。11b are integrally formed.
しかも、外筐11自身で形成した励磁コイル収納部11
aは励磁コイル12を外筐11外側より装着できるよ
うに該収納部11 a上側に開口部11 Cを設け、こ
の開口部11 Cは帰還磁路部を構成する磁性の蓋体1
1 dにより閉塞されるようになっている。Moreover, the excitation coil housing portion 11 is formed by the outer casing 11 itself.
An opening 11C is provided on the upper side of the storage section 11a so that the excitation coil 12 can be attached from the outside of the outer casing 11, and this opening 11C is a magnetic cover 1 that constitutes a return magnetic path section.
1d.
従って、磁性コイル12は外筐11外側より励磁コイル
収納部11 aに収納し、しかる後、その収納部11
aの開口部11 Cを蓋体11 dで閉塞すれば、流量
計検出器本体への励磁コイル12の取り付けを終了する
ことになる。Therefore, the magnetic coil 12 is stored in the excitation coil storage part 11a from the outside of the outer casing 11, and then
If the opening 11C of a is closed with the lid 11d, the attachment of the excitation coil 12 to the flowmeter detector body is completed.
なお、蓋体11 dの閉塞時、励磁コイル収納部11
Cと気密を保つため、両者間にオーリングパツキン13
を介在している。In addition, when the lid body 11d is closed, the excitation coil storage part 11
To maintain airtightness with C, an O-ring seal 13 is placed between the two.
is intervening.
一方、導管10の内側に電気絶縁物によりライニング1
4を施し、さらに導管10とライニング14とを挿通し
ライニング14内側に電極頭部を露出するように一対の
電極15.15を対向設置している。On the other hand, the inside of the conduit 10 is lined with an electrical insulator 1.
4 is applied, and a pair of electrodes 15 and 15 are placed facing each other so that the conduit 10 and the lining 14 are passed through and the electrode heads are exposed inside the lining 14.
これにより、励磁コイル12によって発生した磁束が被
測定流体に直角に作用して得られる誘起起電力を一対の
電極15.15で被測定流体の流量信号として取り出す
ことかで゛きる。Thereby, the induced electromotive force obtained when the magnetic flux generated by the excitation coil 12 acts perpendicularly on the fluid to be measured can be extracted as a flow rate signal of the fluid to be measured by the pair of electrodes 15,15.
また、外筐11の両端部、つまり一対の電極軸線上に位
置する外筐11側部に開口部11 e 、11 eを設
け、電極15.15の装着並びに保守点検等のために便
利ならしめる。In addition, openings 11 e and 11 e are provided at both ends of the outer casing 11, that is, on the sides of the outer casing 11 located on the axes of the pair of electrodes, to make it convenient for mounting the electrodes 15 and 15 and for maintenance and inspection. .
この開口部11 e、11 eは電極部蓋体11 fに
より閉塞される。The openings 11e, 11e are closed by the electrode lid 11f.
この場合もオーリングパツキン16により気密に保持さ
れる。In this case as well, the O-ring packing 16 maintains airtightness.
なお、蓋体11 d、11 fの閉塞後は外筐11に溶
接してもよく、あるいはねし止めしてもよい。Note that after the lids 11 d and 11 f are closed, they may be welded or screwed to the outer casing 11.
さらに蓋体に励磁電源線、信号出力線の導入、引出孔を
設けてもよい。Furthermore, the lid body may be provided with introduction and extraction holes for an excitation power supply line and a signal output line.
また、励磁コイル12は直接収納部11 aに収納して
もよく、又は蓋体11 dに固定して蓋体11 d閉塞
時に収納部11 aに収納することも可能である。Further, the excitation coil 12 may be directly stored in the storage part 11a, or it can be fixed to the lid 11d and stored in the storage part 11a when the lid 11d is closed.
第2図乃至第5図はそれぞれ第1図aのA部分を拡大し
て示す部分的断面図である。2 to 5 are enlarged partial cross-sectional views of portion A in FIG. 1a.
導管10の端部が外筐11と接する境界部には外筐内面
に円周溝11 gが形成され、その内部には、緩衝材1
7が挿入しである。A circumferential groove 11g is formed on the inner surface of the outer casing at the boundary where the end of the conduit 10 contacts the outer casing 11, and a buffer material 1 is placed inside the circumferential groove 11g.
7 is inserted.
これらの実施例においては、ライニング14をいずれも
ゴムにより形成し、緩衝材17をライニングと同材質の
ゴムにより一体に形成した場合を示している。In these embodiments, the lining 14 is made of rubber, and the cushioning material 17 is made of the same rubber as the lining.
ライニング14は導管10のみならずフランジ11bに
わたって形成されている。The lining 14 is formed not only over the conduit 10 but also over the flange 11b.
このように緩衝材17を円周溝11 gに挿入しておけ
ば、外筐10の熱的、機械的応力に対する逃げを与える
ことができ、導管10の損傷を生ずることなく、かつ気
密も十分に保たれる利点がある。By inserting the buffer material 17 into the circumferential groove 11g in this manner, it is possible to provide relief from thermal and mechanical stress in the outer casing 10, without causing damage to the conduit 10, and with sufficient airtightness. It has the advantage of being maintained.
さらに緩衝材17をライニング材と同材質で一体に形成
すれば、作業もより簡単で工数、部品を軽減しうる利点
がある。Furthermore, if the cushioning material 17 is formed integrally with the lining material from the same material, there is an advantage that the work is simpler and the number of man-hours and parts can be reduced.
また円周溝11 gを第2図、第3図、第5図のように
ダブテール状にしておけば、緩衝材17に応力が加わっ
たときその部分のライニング14の内面にふくれが生じ
にくい利点があり、第4図、第5図のように、導管10
の縁が円周溝11 gの中間にまで達している場合は気
密をより良くしうる利点がある。Furthermore, if the circumferential groove 11g is formed into a dovetail shape as shown in FIGS. 2, 3, and 5, there is an advantage that when stress is applied to the cushioning material 17, the inner surface of the lining 14 in that area is less likely to bulge. There is a conduit 10 as shown in Figures 4 and 5.
If the edge reaches the middle of the circumferential groove 11g, there is an advantage that airtightness can be improved.
さらに第5図のように円周溝11gの部分のライニング
14に同様に円周溝14 aを形成すれば、応力の吸収
はより十分に行なわれる。Further, if a circumferential groove 14a is similarly formed in the lining 14 at the circumferential groove 11g as shown in FIG. 5, the stress can be more fully absorbed.
本考案によれば緩衝材17およびライニング14は生ゴ
ムを接着材などで貼付して加硫することにより形成する
のが好ましいが、液状ゴムの場合はモールドで形成する
こともできる。According to the present invention, the cushioning material 17 and the lining 14 are preferably formed by pasting raw rubber with an adhesive or the like and vulcanizing it, but in the case of liquid rubber, they can also be formed by molding.
導管としては、ガラスセンイ強化エポキシ樹脂、ガラス
センイ強化ポリエステル樹脂、ベークライト等が適する
が、セラミック、セメント、アスベスト、或はステンレ
ス等金属パイプでも適用可能である。As the conduit, glass fiber reinforced epoxy resin, glass fiber reinforced polyester resin, Bakelite, etc. are suitable, but ceramic, cement, asbestos, or metal pipes such as stainless steel can also be used.
第1図a、l)は本考案による電磁流量計検出器の一部
断面側面図および一部断面正面図、第2図乃至第5図は
それぞれ第1図aのA部を拡大して示す部分的断面図で
ある。
10・・・・・・非磁性導管、11・・・・・・磁性体
外筐、12・・・・・・励磁コイル、14・・・・・・
ライニング、15・・・・・・電極、11 g・・・・
・・円周溝、17・・・・・・緩衝材。Figures 1a and 1) are partially sectional side views and partially sectional front views of the electromagnetic flowmeter detector according to the present invention, and Figures 2 to 5 are enlarged views of section A in Figure 1a, respectively. FIG. 10...Nonmagnetic conduit, 11...Magnetic outer casing, 12...Excitation coil, 14...
Lining, 15... Electrode, 11 g...
...Circumferential groove, 17...Buffer material.
Claims (2)
記1対の電極を結ぶ線および前記導管の軸線に対して直
角に磁界を作用する励磁コイルと、両端にフランジを有
しかつ磁束の帰路を形成する磁性体外筐とを有する電磁
流量計検出器において、前記導管は前記外筐内に嵌合挿
入されており、前記導管の内面には前記外筐のフランジ
にわたって電気絶縁性ライニングが施こされ、前記導管
の両端が前記外筐と接する境界部には外筐の内面に円周
溝が形成されており、この溝内には緩衝材が挿入されて
いることを特徴とする電磁流量計検出器。(1) A pair of electrodes installed opposite to a non-magnetic conduit, an excitation coil that applies a magnetic field perpendicular to a line connecting the pair of electrodes and the axis of the conduit, and flanges at both ends. In an electromagnetic flowmeter detector having a magnetic outer casing that forms a return path for magnetic flux, the conduit is fitted and inserted into the outer casing, and the inner surface of the conduit has electrical insulation across the flange of the outer casing. A lining is provided, and a circumferential groove is formed on the inner surface of the outer casing at the boundary where both ends of the conduit contact the outer casing, and a cushioning material is inserted into the groove. Electromagnetic flow meter detector.
ることを特徴とする実用新案登録請求の範囲第1項記載
の電磁流量計検出器。(2) The electromagnetic flowmeter detector according to claim 1, wherein the buffer material is made of the same material as the lining and is formed integrally with the lining.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2081978U JPS58809Y2 (en) | 1978-02-22 | 1978-02-22 | electromagnetic flowmeter detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2081978U JPS58809Y2 (en) | 1978-02-22 | 1978-02-22 | electromagnetic flowmeter detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54125266U JPS54125266U (en) | 1979-09-01 |
JPS58809Y2 true JPS58809Y2 (en) | 1983-01-08 |
Family
ID=28852518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2081978U Expired JPS58809Y2 (en) | 1978-02-22 | 1978-02-22 | electromagnetic flowmeter detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58809Y2 (en) |
-
1978
- 1978-02-22 JP JP2081978U patent/JPS58809Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS54125266U (en) | 1979-09-01 |
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