JP2002139365A - Method and apparatus for mounting flowmeter - Google Patents
Method and apparatus for mounting flowmeterInfo
- Publication number
- JP2002139365A JP2002139365A JP2000335376A JP2000335376A JP2002139365A JP 2002139365 A JP2002139365 A JP 2002139365A JP 2000335376 A JP2000335376 A JP 2000335376A JP 2000335376 A JP2000335376 A JP 2000335376A JP 2002139365 A JP2002139365 A JP 2002139365A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- mounting
- flowmeter
- flow meter
- hole
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、流量計の取付方法
及び装置に関し、より詳細には、既設配管に新たに流量
計を設置する方法及びそれに用いる装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for mounting a flow meter, and more particularly, to a method for newly installing a flow meter in an existing pipe and an apparatus used therefor.
【０００２】[0002]
【従来の技術】従来、化学プラント等において、主要パ
イプラインに流量計を取り付けて流量を計測し、監視、
制御することで流量管理して運転すればよかった。しか
しながら、近年、省エネルギー、ＣＯ2削減等環境問題
の面から、配管の末端まで、きめ細かに流量管理するこ
とが要求されてきている。2. Description of the Related Art Conventionally, in a chemical plant or the like, a flowmeter is attached to a main pipeline to measure a flow rate, and monitor and monitor the flow rate.
It should have operated by controlling the flow rate by controlling. However, in recent years, from the viewpoint of environmental issues such as energy saving and CO 2 reduction, it has been required to finely control the flow rate to the end of the pipe.
【０００３】これに対処して、新規にプラントを建設す
る場合は、パイプラインの必要な箇所に予め流量計を設
置すればよいが、既存のプラント等においては、新たに
流量計を取り付けるには、非常に手間と時間が掛かっ
た。To cope with this, when constructing a new plant, a flow meter may be installed in a necessary place in the pipeline in advance. However, in an existing plant or the like, it is necessary to newly install a flow meter. It was very troublesome and time consuming.
【０００４】図３は、従来の、既存のパイプに流量計を
取り付けた状態を説明する図である。従来の取付方法を
説明すると、まず、取り付け位置の配管系を閉鎖して、
内部の流体を排出する。そして、パイプＡの流量計を、
取り付けるべき位置の前後、流量計の長さに相当する長
さ分パイプＡを切断し取り除き、切断した端面にフラン
ジＢを溶接等により取り付ける。その後、その箇所に、
パイプライン用に製造された渦発生体Ｃ、渦センサＤ、
変換器Ｅ等が配置され両端に取付用フランジＦを設けた
パイプ径と同一径の管状本体Ｇからなる流量計Ｈを、挟
み込み、両フランジＢ，Ｆを、ボルトで締着して取り付
けていた。FIG. 3 is a view for explaining a conventional state in which a flow meter is attached to an existing pipe. To explain the conventional mounting method, first, close the piping system at the mounting position,
Drain the internal fluid. And the flow meter of the pipe A,
Before and after the position to be attached, the pipe A is cut and removed by a length corresponding to the length of the flow meter, and a flange B is attached to the cut end face by welding or the like. After that,
Vortex generator C, vortex sensor D, manufactured for pipeline
A flow meter H composed of a tubular main body G having the same diameter as the pipe in which the converter E and the like are arranged and mounting flanges F are provided at both ends is sandwiched, and both flanges B and F are fastened with bolts. .
【０００５】そのため、パイプＡに、フランジＢを取り
付けるのに、手間、及びコストが掛かり、特にフランジ
溶接の場合、パイプライン内にはみ出したビート等によ
り、計測に影響を与える恐れがあった。また、取付作業
中は、取り付け位置の前後を閉鎖しなければならず、メ
インのパイプライン部でなくとも、長時間停止すること
は好ましくないし、場合によっては、プラントの運転を
中止する必要があり、経済的、信頼性、安全上の面から
も、あまり長時間止めることは、できなかった。Therefore, it takes time and cost to attach the flange B to the pipe A. In particular, in the case of flange welding, a beat or the like protruding into the pipeline may affect the measurement. Also, during the installation work, it is necessary to close the front and rear of the installation position, it is not preferable to stop for a long time, even if it is not the main pipeline, and in some cases, it is necessary to stop the operation of the plant In terms of economy, reliability and safety, it was not possible to stop for a long time.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上記問題点
に鑑み、既存のパイプラインに流量計を設置するに際し
設置のための工事期間、工事費用をなるべく軽減し、簡
単に取り付けることのできる方法及びそれに用いる装置
を提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and when installing a flow meter in an existing pipeline, the installation period and installation cost for the installation can be reduced as much as possible, and the installation can be easily performed. An object is to provide a method and an apparatus used for the method.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、流量計に取付プレートを取り付けて、パ
イプに開けられた所定径の穴に、前記流量計のセンサ部
を挿入し、前記取付プレートを前記パイプに固着して、
流量計をパイプに取り付けるようにした方法である。In order to achieve the above object, according to the present invention, a mounting plate is attached to a flow meter, and a sensor portion of the flow meter is inserted into a hole of a predetermined diameter formed in a pipe. Fixing the mounting plate to the pipe,
This is a method in which a flow meter is attached to a pipe.
【０００８】さらに、本発明は、前記流量計をパイプに
取り付ける方法を実施する際に用いられる、流量計を取
り付ける取付プレートと、前記パイプを間に挟着した状
態に固着する取付部材からなる流量計取付装置に関す
る。Further, the present invention provides a method for mounting the flow meter on a pipe, comprising a mounting plate for mounting the flow meter and a mounting member for fixing the pipe in a state sandwiched therebetween. It relates to a meter mounting device.
【０００９】さらに、本発明は、前記流量計取付装置の
取付部材をＵ字ボルトとしたものである。Further, according to the present invention, the mounting member of the flowmeter mounting device is a U-shaped bolt.
【００１０】さらに、本発明は、前記流量計をパイプに
取り付ける方法において、流量計を、渦流量計としたも
のである。Further, in the present invention, in the method of attaching the flow meter to a pipe, the flow meter is a vortex flow meter.
【００１１】さらに、本発明は、前記流量計をパイプに
取り付ける方法において、前記渦流量計のセンサ部の長
さを、パイプ径とほぼ同一とし、パイプ内の平均流量を
測定できるようにしたものである。Further, the present invention provides a method of attaching the flow meter to a pipe, wherein a length of a sensor portion of the vortex flow meter is made substantially the same as a pipe diameter so that an average flow rate in the pipe can be measured. It is.
【００１２】[0012]
【発明の実施の形態】本発明による流量計取付装置の実
施形態を、図面に基づいて、以下に説明する。図１は、
本発明に係る流量計取付装置により、配管に流量計を取
り付けた状態を示し、流れ方向から見た断面図である。
流量計として渦流量計に適用した例を示している。図
中、１は取付装置で、流量計取付プレート２、Ｕ字ボル
ト５、取付ナット６、スペーサ（パッキン押さえ）７か
らなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flow meter mounting device according to the present invention will be described below with reference to the drawings. FIG.
It is the sectional view seen from the flow direction which shows the state where the flowmeter was attached to the pipe by the flowmeter attachment device concerning the present invention.
The example which applied to the vortex flowmeter as a flowmeter is shown. In the figure, reference numeral 1 denotes a mounting device, which comprises a flowmeter mounting plate 2, a U-shaped bolt 5, a mounting nut 6, and a spacer (packing holder) 7.
【００１３】８は流量計本体で、ブラッフボディ部９
と、固定リング部１０、取付フランジ１３とからなる。
１１は固定リング部１０の鍔部、１２は段部である。ブ
ラッフボディ部９には、渦発生体、振動センサ等の渦流
量計センサの構成要素が一体に組み込まれている。ま
た、１４は流量計８のリード線で、１５は変換器、１６
は変換器の取付筒、１７は取付対象のパイプである。Reference numeral 8 denotes a flow meter body, and a bluff body 9
And a fixing ring portion 10 and a mounting flange 13.
Reference numeral 11 denotes a flange portion of the fixing ring portion 10, and reference numeral 12 denotes a step portion. Components of the vortex flowmeter sensor such as a vortex generator and a vibration sensor are integrally incorporated in the bluff body 9. 14 is a lead wire of the flow meter 8, 15 is a converter, 16
Is a mounting cylinder of the converter, and 17 is a pipe to be mounted.
【００１４】流量計取付プレート２は、中央に、流量計
本体８の基部が挿入される穴部３と、取付対象パイプ１
７側の面に、穴部３の周囲に、固定リング１０が嵌挿さ
れる凹部４が形成され、両端部にはＵ字ボルト５が貫通
する穴（図示せず。）が開けられている。The flowmeter mounting plate 2 has, in the center thereof, a hole 3 into which the base of the flowmeter main body 8 is inserted, and a pipe 1 to be mounted.
A concave portion 4 into which the fixing ring 10 is inserted is formed around the hole portion 3 on the surface on the 7 side, and a hole (not shown) through which the U-bolt 5 penetrates is formed at both ends.
【００１５】配管のパイプ径は、規格で決まっているの
で、Ｕ字ボルト５のＵ字部の径およびスペーサ７のパイ
プに当接する面の径の異なるＵ字ボルト５およびスペー
サ７をパイプの外径に合わせて、幾種類か準備してお
く。なお、ブラッフボディ部９の長さは、パイプ１７の
内径とほぼ同じ寸法にすることにより、管内の平均流量
が即測定でき、挿入式渦流量計のように部分流速を測定
し挿入深さとレイノルズ数から平均流速を求めるという
面倒な演算を必要としない。Since the pipe diameter of the pipe is determined by the standard, the U-shaped bolt 5 and the spacer 7 having different diameters of the U-shaped part of the U-shaped bolt 5 and the diameter of the surface of the spacer 7 which comes into contact with the pipe are connected to the outside of the pipe. Prepare several types according to the diameter. By setting the length of the bluff body 9 to be approximately the same as the inner diameter of the pipe 17, the average flow rate in the pipe can be measured immediately. There is no need for complicated calculation of calculating the average flow velocity from the numbers.
【００１６】本発明に係る流量計取付装置により、配管
に流量計を取り付ける方法を説明する。先ず、取付プレ
ート２に、所定の流量計の本体８を取り付ける。取付プ
レート２の凹部４に、流量計の固定リング部１０の鍔部
１１を挿嵌し、溶接等で固着後、穴部３からリード線１
４を取り出し、取付プレート２の上面に、変換器１５を
取付筒１６を介して取付ける。そして、リード線１４を
変換器１５に結線する。図２は、本発明の取付装置のパ
イプに取付途中の分解図を示している。取付プレートに
流量計を取り付けた状態を示す図である。A method for mounting a flow meter on a pipe using the flow meter mounting device according to the present invention will be described. First, a main body 8 of a predetermined flow meter is mounted on the mounting plate 2. The flange 11 of the fixing ring 10 of the flow meter is inserted into the recess 4 of the mounting plate 2 and fixed by welding or the like.
4 is taken out, and the converter 15 is mounted on the upper surface of the mounting plate 2 via the mounting tube 16. Then, the lead wire 14 is connected to the converter 15. FIG. 2 is an exploded view of the mounting device according to the present invention in the process of being mounted on a pipe. It is a figure showing the state where the flow meter was attached to the attachment plate.
【００１７】次いで、パイプ１７の流量計を取り付ける
べき箇所に、流量計の固定リング部１０の段部１２が挿
入できる程度の径の穴を開ける。パイプ１７の外径に合
うスペーサ７を固定リング１０に装着し、パッキン部材
を間挿して、パイプ１７に開けられた穴から、流量計の
ブラッフボディ部９をパイプ１７内に挿入し、スペーサ
７、流量計の固定プレートの段部１２を圧接する。次
に、同様にパイプ１７の外径に合うＵ字ボルトを、パイ
プ１７を跨いで挟み込み、取付プレート２のボルト穴を
通して、ボルトを締め付けることにより取付プレート２
を固着する。Next, a hole having a diameter such that the step 12 of the fixing ring 10 of the flow meter can be inserted into the pipe 17 at a place where the flow meter is to be mounted. The spacer 7 that fits the outer diameter of the pipe 17 is attached to the fixing ring 10, the packing member is inserted, and the bluff body 9 of the flow meter is inserted into the pipe 17 through a hole formed in the pipe 17, and the spacer 7 is inserted. Then, the step 12 of the fixed plate of the flowmeter is pressed. Next, similarly, a U-shaped bolt that fits the outer diameter of the pipe 17 is sandwiched across the pipe 17, passed through a bolt hole of the mounting plate 2, and tightened with a bolt.
Is fixed.
【００１８】Ｕ字ボルト５及びスペーサ７のパイプに当
接する面の形状が、取り付けるべきパイプ１７の径とあ
わせてあるので、Ｕ字ボルト５にナット６を均一に締め
付けていけば、流量計とパイプの芯合わせができ、流量
計を流路の中心位置に設置することができる。なお、本
実施例では、パイプに流量計を取り付けた取付装置を固
着するのに、Ｕ字ボルトを使用したものについて説明し
たが、パイプ状部材に、プレート状部材を取り付ける手
段なら、如何なる手段を採用してもよいことは言うまで
もない。また、流量計として、渦流量計を取り付ける方
法について説明したが、超音波流量計、熱式質量流量計
等一体化してプローブ形式の流量計なら同様に適用でき
る。Since the shape of the surface of the U-shaped bolt 5 and the spacer 7 which comes into contact with the pipe matches the diameter of the pipe 17 to be attached, if the nut 6 is uniformly tightened to the U-shaped bolt 5, the flow meter and the The pipe can be centered, and the flow meter can be installed at the center of the flow path. In the present embodiment, the U-bolt is used to fix the mounting device having the flowmeter mounted on the pipe. However, any means for mounting the plate-shaped member to the pipe-shaped member may be used. It goes without saying that it may be adopted. Also, a method of attaching a vortex flowmeter as a flowmeter has been described, but a probe-type flowmeter that is integrated with an ultrasonic flowmeter, a thermal mass flowmeter, or the like can be similarly applied.
【００１９】[0019]
【発明の効果】本発明によれば、既設の配管に流量計
を、取り付けるのに際して、配管に穴を開ける作業のみ
で済み、従来に比較して、非常に簡単に、しかも短時間
に取り付けることができ、パイプライン、あるいはプラ
ントを停止することによる経済的損失を最小限に止める
ことができる。また、取付装置本体の大きさも、小形な
ので、取付に要するスペースも少なく、従来の方法では
設置できなかったような配管の入り組んだ箇所にも取り
付けることができる。さらに、流量計の保守点検も、Ｕ
字ボルトを外すだけで、流量計を取り出すことができ、
簡単に実施可能となる。According to the present invention, when attaching a flow meter to an existing pipe, it is only necessary to make a hole in the pipe. And minimize the economic loss from shutting down the pipeline or plant. In addition, since the size of the mounting device body is small, the space required for mounting is small, and the mounting device can be mounted in a complicated place where piping cannot be installed by the conventional method. In addition, the maintenance and inspection of the flow meter
The flow meter can be taken out simply by removing the U-shaped bolt,
It can be easily implemented.
【図１】本発明に係る流量計取付装置により、配管に流
量計を取り付けた状態を示し、流れ方向から見た断面図
である。FIG. 1 is a sectional view showing a state in which a flow meter is mounted on a pipe by a flow meter mounting device according to the present invention, as viewed from a flow direction.
【図２】本発明の取付装置により流量計をパイプに取付
途中の状態を示す分解図である。FIG. 2 is an exploded view showing a state in which a flow meter is being mounted on a pipe by the mounting device of the present invention.
【図３】従来の、既存のパイプに流量計を取り付けた状
態を説明する図である。FIG. 3 is a diagram illustrating a conventional state in which a flow meter is attached to an existing pipe.
１…取付装置、２…流量計取付プレート、３…穴部、４
…凹部、５…Ｕ字ボルト、６…取付ナット、７…スペー
サ（パッキン押さえ）、８…流量計本体、９…ブラッフ
ボディ部、１０…固定リング部、１１…鍔部、１２…段
部、１３…取付フランジ、１４…リード線、１５…変換
器、１６…取付筒、１７…取付対象パイプ。DESCRIPTION OF SYMBOLS 1 ... Mounting device, 2 ... Flowmeter mounting plate, 3 ... Hole part, 4
... Recessed part, 5 ... U-shaped bolt, 6 ... Mounting nut, 7 ... Spacer (packing holder), 8 ... Flow meter body, 9 ... Bluff body part, 10 ... Fixed ring part, 11 ... Flange part, 12 ... Step part, 13: mounting flange, 14: lead wire, 15: converter, 16: mounting cylinder, 17: pipe to be mounted.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小澤 貴浩 東京都新宿区上落合３丁目10番８号 株式 会社オーバル内 Ｆターム(参考） 2F030 CF14 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takahiro Ozawa 3-10-8 Kamiochiai, Shinjuku-ku, Tokyo F-term in Oval Co., Ltd. 2F030 CF14
Claims (5)
イプに開けられた所定径の穴に、前記流量計のセンサ部
を挿入し、前記取付プレートを前記パイプに固着するこ
とを特徴とする流量計をパイプに取り付ける方法。1. A flowmeter, comprising: mounting a mounting plate on a flowmeter, inserting a sensor part of the flowmeter into a hole of a predetermined diameter formed in a pipe, and fixing the mounting plate to the pipe. How to attach a meter to a pipe.
付ける方法を実施する際に用いられる、流量計を取り付
ける取付プレートと、前記パイプを間に挟着した状態に
固着する取付部材からなる流量計取付装置。2. A mounting plate for mounting a flow meter, which is used when the method for mounting a flow meter according to claim 1 on a pipe is carried out, and a mounting member for fixing the pipe in a state sandwiched therebetween. Flow meter mounting device.
特徴とする請求項２記載の流量計取付装置。3. The flowmeter mounting device according to claim 2, wherein said mounting member is a U-bolt.
徴とする請求項１に記載の流量計をパイプに取り付ける
方法。4. The method according to claim 1, wherein the flowmeter is a vortex flowmeter.
プ径とほぼ同一としたことを特徴とする請求項４に記載
の流量計をパイプに取り付ける方法。5. The method according to claim 4, wherein the length of the sensor portion of the vortex flowmeter is substantially the same as the diameter of the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000335376A JP2002139365A (en) | 2000-11-02 | 2000-11-02 | Method and apparatus for mounting flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000335376A JP2002139365A (en) | 2000-11-02 | 2000-11-02 | Method and apparatus for mounting flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002139365A true JP2002139365A (en) | 2002-05-17 |
Family
ID=18811130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000335376A Pending JP2002139365A (en) | 2000-11-02 | 2000-11-02 | Method and apparatus for mounting flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002139365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005164581A (en) * | 2003-11-03 | 2005-06-23 | Rosemount Inc | Flanged vortex flowmeter having integrated tapered expanded diameter part |
| JP2007531893A (en) * | 2004-04-05 | 2007-11-08 | ローズマウント インコーポレイテッド | Scaleable averaging insertion vortex flowmeter |
| DE102014119260A1 (en) * | 2014-12-19 | 2016-06-23 | Endress + Hauser Flowtec Ag | Connecting device for an electronics housing and transducer or field device with such a connection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4928036Y1 (en) * | 1969-04-25 | 1974-07-30 | ||
| JPS5258561A (en) * | 1975-11-10 | 1977-05-14 | Yokogawa Hokushin Electric Corp | Current meter |
| JPS6288968A (en) * | 1985-10-15 | 1987-04-23 | ノ−テイフアイア−・カンパニ− | Water flow detector |
-
2000
- 2000-11-02 JP JP2000335376A patent/JP2002139365A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4928036Y1 (en) * | 1969-04-25 | 1974-07-30 | ||
| JPS5258561A (en) * | 1975-11-10 | 1977-05-14 | Yokogawa Hokushin Electric Corp | Current meter |
| JPS6288968A (en) * | 1985-10-15 | 1987-04-23 | ノ−テイフアイア−・カンパニ− | Water flow detector |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005164581A (en) * | 2003-11-03 | 2005-06-23 | Rosemount Inc | Flanged vortex flowmeter having integrated tapered expanded diameter part |
| JP2007531893A (en) * | 2004-04-05 | 2007-11-08 | ローズマウント インコーポレイテッド | Scaleable averaging insertion vortex flowmeter |
| JP4839308B2 (en) * | 2004-04-05 | 2011-12-21 | ローズマウント インコーポレイテッド | Scaleable averaging insertion vortex flowmeter |
| DE102014119260A1 (en) * | 2014-12-19 | 2016-06-23 | Endress + Hauser Flowtec Ag | Connecting device for an electronics housing and transducer or field device with such a connection device |
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