JPH04175613A - Detector for electromagnetic flowmeter - Google Patents
Detector for electromagnetic flowmeterInfo
- Publication number
- JPH04175613A JPH04175613A JP30242790A JP30242790A JPH04175613A JP H04175613 A JPH04175613 A JP H04175613A JP 30242790 A JP30242790 A JP 30242790A JP 30242790 A JP30242790 A JP 30242790A JP H04175613 A JPH04175613 A JP H04175613A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- measuring tube
- measurement tube
- section
- tube section
- 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.)
- Pending
Links
- 230000005284 excitation Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 23
- 238000009413 insulation Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、はぼ全ての導電性流体の流星計測に適用可能
で圧損が無視でき、特に、プラントや水処理設備などに
おける流量の管理・制御に好適な電磁流量計検出器の構
造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to meteor measurement of almost all conductive fluids, and pressure drop can be ignored, and is particularly applicable to flow control and management in plants, water treatment equipment, etc. This invention relates to the structure of an electromagnetic flowmeter detector suitable for control.
従来の電磁流量計は特開昭５８−６４１１号公報に記載
されているように、流体を通す測定管と、測定管の半径
方向に磁界を発生する磁極に巻かれた励磁コイル上下一
組をもつ磁界発生装置と、磁界方向および測定管軸方向
のそれぞれに直交する一直線上に位置して測定管に設け
られた一対の電極とから構成されており、磁界発生装置
と測定管とはケーシングを介して一体型となっていた６
〔発明が解決しようとする課題〕
」二記従来技術では、励磁コイル−組を含む磁界発生装
置と電極を取付けた測定管部とが一体となっているため
、検出器全体として取付けられる配管系の口径は一種類
に限られており、口径が異なる配管系に取付ける場合に
は、別の電磁流量計検出器を用意しなければならなかっ
た。As described in Japanese Patent Application Laid-Open No. 58-6411, a conventional electromagnetic flowmeter consists of a measurement tube through which fluid passes, and a pair of upper and lower excitation coils wound around magnetic poles that generate a magnetic field in the radial direction of the measurement tube. It consists of a magnetic field generator with a casing and a pair of electrodes installed on the measuring tube in a straight line perpendicular to the direction of the magnetic field and the axis of the measuring tube. It was integrated through the 6
[Problems to be Solved by the Invention] In the prior art described in Section 2, the magnetic field generator including the excitation coil set and the measurement pipe section to which the electrodes are attached are integrated, so the piping system attached to the entire detector is The diameter of the flowmeter is limited to one type, and if it is installed in a piping system with a different diameter, a separate electromagnetic flowmeter detector must be prepared.
また、」−記従来技術では、磁界発生装置と測定管部と
が一体であるため、重景が重く、配管系への取付の際に
、クレーンなどが必要となる場合があり、取付作業が困
難であった。In addition, in the prior art described in ``-'', the magnetic field generator and the measuring pipe are integrated, so the view is heavy, and a crane or the like may be required when installing it to the piping system, making the installation work difficult. It was difficult.
本発明の目的は、一種類の電磁流量計を用意するだけで
、様々な口径の配管系に取付けられるようにするととも
に、電磁流量計の配管系への取付は作業を容易にするこ
とにある。The purpose of the present invention is to enable installation in piping systems of various diameters by simply preparing one type of electromagnetic flowmeter, and to facilitate the work of installing an electromagnetic flowmeter in a piping system. .
上記目的は、流体を通す測定管と、磁極に巻かれた上、
下一組の励磁コイルをもち前記測定管の半径方向に磁界
を発生する磁界発生装置と、前記磁界方向および前記測
定管の管軸方向のそれぞれに直交する一直線上に位置し
て前記測定管に取付けられた一対の電極とを備える電磁
流量計検出器において。The above purpose consists of a measuring tube through which the fluid passes, a tube wrapped around a magnetic pole,
a magnetic field generating device that has a lower set of excitation coils and generates a magnetic field in the radial direction of the measuring tube; In an electromagnetic flowmeter detector comprising a pair of attached electrodes.
磁界発生装置に含まれる部分と測定管部に含まれる部分
とに磁極を分け、測定管を磁界発生装置から脱着可能に
したことによって達成される。This is achieved by dividing the magnetic pole into a portion included in the magnetic field generator and a portion included in the measuring tube, and by making the measuring tube detachable from the magnetic field generator.
測定管部と磁界発生装置とを分離し、様々な口径の測定
管をもった測定管部を用意すれば、磁界発生装置はその
ままで、測定管部を取替えるだけで、様々な口径の配管
系に取付けることができる。By separating the measurement tube section and the magnetic field generator and preparing measurement tube sections with measurement tubes of various diameters, piping systems of various diameters can be created by simply replacing the measurement tube section while leaving the magnetic field generation device as is. Can be installed on.
また、測定管部と磁界発生装置とを分離すれば、測定管
部および磁界発生装置それぞれの重量は。Furthermore, if the measurement tube section and the magnetic field generation device are separated, the respective weights of the measurement tube section and the magnetic field generation device are as follows.
それらが一体であったときの電磁流量計検出器全体の重
量よりも軽くなり、従来クレーンなどを使う必要があっ
た取付作業を、容易に行うことができるようになる。The weight of the entire electromagnetic flow meter detector is lighter than if they were integrated, and installation work that conventionally required the use of a crane can now be carried out easily.
以下、本発明の一実施例を第１図、第２図、第３図およ
び第４図により説明する。An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3, and 4.
本発明による電磁流量計検出器は、大きく、測定管部と
磁界発生装置とに分けられる。測定管部は、内面に絶縁
性ライニング７を施し、一対の電極８を取り付けである
測定管６と、測定管６に取り付けられた板ばねｌｌａ・
ｌｌｂに付けられた補助磁極５ａ・５ｂと、流量信号を
外部に取り出すために電極８に取り付けられた信号取出
コネクタ１２とからなり、それらは非磁性体の測定管部
ケーシング９により固定されている。磁界発生装置は、
測定管部と接する非磁性体の測定管部保持部材１０と、
その上下に取り付けられた磁極３ａ・３ｂと、磁極に巻
かれた励磁コイル４ａ・４ｂと、磁界が外部に漏れない
ように磁極に取り付けられたコア２とからなり、ケーシ
ング１によって固定されている。なお、板ばね１１は、
測定管部を磁界発生装置内に挿入した際に、補助磁極５
を磁極３に密着させるために取り付けられたものである
。The electromagnetic flowmeter detector according to the present invention can be broadly divided into a measuring tube section and a magnetic field generating device. The measuring tube section includes a measuring tube 6 having an insulating lining 7 on its inner surface, a pair of electrodes 8 attached thereto, and a leaf spring lla/la attached to the measuring tube 6.
It consists of auxiliary magnetic poles 5a and 5b attached to the llb, and a signal extraction connector 12 attached to the electrode 8 for extracting the flow rate signal to the outside, and these are fixed by a measurement tube part casing 9 made of a non-magnetic material. . The magnetic field generator is
a measurement tube holding member 10 made of a non-magnetic material and in contact with the measurement tube;
It consists of magnetic poles 3a and 3b attached above and below, excitation coils 4a and 4b wound around the magnetic poles, and a core 2 attached to the magnetic poles to prevent the magnetic field from leaking to the outside, and is fixed by a casing 1. . Note that the leaf spring 11 is
When the measuring tube section is inserted into the magnetic field generator, the auxiliary magnetic pole 5
It is attached to bring the magnetic pole 3 into close contact with the magnetic pole 3.
測定管部を上記のように構成することにより。By configuring the measuring tube section as described above.
第３図に示すような、第１図と口径が異なる測定管をも
った測定管部が可能となる。また、補助磁極５および測
定管ケーシング９を省略すれば、第２図のような、口径
の大きい測定管をもった測定管部を構成することができ
る。It is possible to create a measuring tube section as shown in FIG. 3 having a measuring tube having a diameter different from that in FIG. 1. Furthermore, by omitting the auxiliary magnetic pole 5 and the measuring tube casing 9, it is possible to construct a measuring tube section having a large diameter measuring tube as shown in FIG.
このように、電磁流量計検出器を、測定管部と磁界発生
装置に分離して構成すれば、第４図に示すように、脱着
が可能となり、電磁流量計を設置しようとしている配管
系の口径と合わせた口径をもつ測定管部を用いることに
より、磁界発生装置を共用して異なった配管系への設置
が可能′となる。By configuring the electromagnetic flowmeter detector by separating it into the measurement pipe section and the magnetic field generator, it becomes possible to attach and detach the electromagnetic flowmeter as shown in Figure 4. By using a measuring tube section with a diameter that matches the diameter of the measuring tube, it becomes possible to share the magnetic field generating device and install it in different piping systems.
第５図は、本発明の他の実施例で、測定管部ケーシング
９および測定管部保持部材１０に溝を付け、測定管部を
磁界発生装置内に挿入しやすくしたものである。FIG. 5 shows another embodiment of the present invention in which a measuring tube casing 9 and a measuring tube holding member 10 are grooved to facilitate insertion of the measuring tube into the magnetic field generator.
本発明によれば、測定管部を磁界発生装置から脱着でき
るので、様々な口径の配管系への流量針の設置が可能と
なる。According to the present invention, since the measuring tube section can be attached and detached from the magnetic field generator, it is possible to install the flow rate needle in piping systems of various diameters.
また、本発明によれば、測定管部および磁界発生装置そ
れぞれの重量を、従来の一体型の物よりも軽くできるの
で、流量計の取付作業を容易にすることができる。Further, according to the present invention, the weights of the measuring tube section and the magnetic field generating device can be made lighter than those of conventional integrated devices, so that the work of installing the flowmeter can be facilitated.
第１図は、本発明の一実施例の電磁流量計検出器の断面
図、第２図、第３図は、本発明による測定管部の他の実
施例の断面図、第４図は、本発明による磁界発生装置の
斜視図、第５図は、本発明による溝付き測定管部の斜視
図である。
１・・・ケーシング、２・・・コア、３．３ａ、３ｂ・
・・磁極、４，４ａ、４ｂ”・励磁コイル、５．５ａ。
５ｂ・・・補助磁極、６・・測定管、７・・・ライニン
グ、８・・・電極、９・・・測定管部ケーシング、１０
・測定管部保持部材、１１．ｌｌａ、ｌｌｂ・・・抜ば
ね、」２・・・信号取出コネクタ。FIG. 1 is a cross-sectional view of an electromagnetic flowmeter detector according to one embodiment of the present invention, FIGS. 2 and 3 are cross-sectional views of another embodiment of the measuring tube section according to the present invention, and FIG. FIG. 5 is a perspective view of the magnetic field generating device according to the invention, and FIG. 5 is a perspective view of the grooved measuring tube section according to the invention. 1...Casing, 2...Core, 3.3a, 3b・
...Magnetic pole, 4,4a,4b"・Exciting coil, 5.5a. 5b...Auxiliary magnetic pole, 6...Measuring tube, 7...Lining, 8...Electrode, 9...Measuring tube section casing, 10
- Measuring tube holding member, 11. lla, llb...removal spring, 2...signal output connector.
Claims (1)
励磁コイルを有し前記測定管の半径方向に磁界を発生す
る磁界発生装置と、前記磁界方向および前記測定管の管
軸方向のそれぞれ直交する一直線上に位置して前記測定
管に取付けられた一対の電極とを備えた電磁流量計検出
器において、 前記磁界発生装置に含まれる部分と前記測定管部に含ま
れる部分とに磁極を分け、前記測定管を前記磁界発生装
置から脱着可能にしたことを特徴とする電磁流量計検出
器。[Scope of Claims] 1. A measuring tube through which a fluid passes, a magnetic field generating device having a set of upper and lower excitation coils wound around magnetic poles and generating a magnetic field in the radial direction of the measuring tube, and a direction of the magnetic field. and a pair of electrodes attached to the measuring tube and located on straight lines orthogonal to each other in the tube axis direction of the measuring tube, the part included in the magnetic field generating device and the measuring tube. An electromagnetic flowmeter detector characterized in that the magnetic pole is divided into a portion included in a tube portion, and the measuring tube is detachable from the magnetic field generating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30242790A JPH04175613A (en) | 1990-11-09 | 1990-11-09 | Detector for electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30242790A JPH04175613A (en) | 1990-11-09 | 1990-11-09 | Detector for electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04175613A true JPH04175613A (en) | 1992-06-23 |
Family
ID=17908794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30242790A Pending JPH04175613A (en) | 1990-11-09 | 1990-11-09 | Detector for electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04175613A (en) |
-
1990
- 1990-11-09 JP JP30242790A patent/JPH04175613A/en active Pending
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