JPH0748053B2 - Liquid flow meter - Google Patents
Liquid flow meterInfo
- Publication number
- JPH0748053B2 JPH0748053B2 JP2276706A JP27670690A JPH0748053B2 JP H0748053 B2 JPH0748053 B2 JP H0748053B2 JP 2276706 A JP2276706 A JP 2276706A JP 27670690 A JP27670690 A JP 27670690A JP H0748053 B2 JPH0748053 B2 JP H0748053B2
- Authority
- JP
- Japan
- Prior art keywords
- float
- flow
- liquid
- partition wall
- flow velocity
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
- G01F1/3236—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters using guide vanes as swirling means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/76—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats characterised by the construction of the float
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、例えば蒸気のような気相と復水のような液相
とが、層を成して流れている管体に於て、液相の流量を
測定する液体用流量計に関する。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a tubular body in which a vapor phase such as steam and a liquid phase such as condensate flow in layers. The present invention relates to a liquid flow meter for measuring the flow rate of a liquid phase.
〈従来の技術〉 一般に、蒸気と復水とは同じ管体を流れるが、このうち
復水のみの流量を測定する場合には、第４図に示すよう
な技術が用いられていた。これは、蒸気と復水とが流れ
る配管１から復水専用の配管２を分岐させ、この分岐配
管２に復水用の流量計３を設けて復水の流量を測定する
ものである。<Prior Art> Generally, steam and condensate flow through the same pipe, but when measuring only the flow rate of the condensate, a technique as shown in FIG. 4 was used. In this, a pipe 2 dedicated to condensate is branched from a pipe 1 through which steam and condensate flow, and a flow meter 3 for condensate is provided in the branch pipe 2 to measure the flow rate of the condensate.
〈発明が解決しようとする課題〉 しかし、この様な技術では復水専用の配管２が必要であ
り、第４図に示していないが復水を分離するためのセパ
レーター等の装置が必要で、装置全体が大型になるとい
う問題があった。<Problems to be Solved by the Invention> However, such a technique requires a pipe 2 dedicated to condensate, and a device such as a separator for separating condensate, which is not shown in FIG. 4, is required. There is a problem that the entire device becomes large.
従って、本発明の技術的課題は、気相と液相とを分離す
ることなく液相のみの流量を測定できるようにすること
である。Therefore, the technical problem of the present invention is to make it possible to measure the flow rate of only the liquid phase without separating the gas phase and the liquid phase.
〈課題を解決するための手段〉 上記の課題を解決するために講じた本発明の技術的手段
は、気相と液相とが層を成して流れる管体と、管体に垂
直に配置した隔壁と、隔壁の周りに配置した異径フロー
トと、異径フロートの上下方向の位置から液位を演算す
る手段と、異径フロートの左右の揺ぎ回数から流速を演
算する手段と、液位と流速とに基づいて液相の流量を演
算する手段とからなるものである。<Means for Solving the Problem> The technical means of the present invention taken to solve the above-mentioned problems are a tube body in which a gas phase and a liquid phase flow in layers, and a tube body arranged vertically to the tube body. Partition, a different diameter float arranged around the partition, a means for calculating the liquid level from the vertical position of the different diameter float, a means for calculating the flow velocity from the number of left and right shaking of the different diameter float, And means for calculating the flow rate of the liquid phase based on the position and the flow velocity.
〈作用〉 隔壁の周りに配置した異径フロートは液面と共に上下に
浮上降下する。このフロートの上下方向の位置を検出す
ることにより、管体内の液位が測定される。また、異径
フロートは管体内を流れる液体によって左右に揺ぐ、揺
ぎの頻度は流速が大きい程多くなる。この揺ぎの頻度と
流速との関係を予め求めておくことにより、揺ぎの頻度
を検出することによって流速が測定される。液位から液
相の通過断面積が解るので、通過断面積と流速から液体
の流量を求めることができる。<Operation> The different-diameter floats arranged around the partition float up and down together with the liquid surface. The liquid level in the tube is measured by detecting the vertical position of the float. Further, the different-diameter float sways left and right by the liquid flowing in the pipe body, and the frequency of the sway increases as the flow velocity increases. The flow velocity is measured by detecting the frequency of the fluctuation by previously obtaining the relationship between the frequency of the fluctuation and the flow velocity. Since the cross-sectional area of passage of the liquid phase is known from the liquid level, the flow rate of the liquid can be obtained from the cross-sectional area of passage and the flow velocity.
〈実施例〉 本発明の具体例を示す実施例を説明する（第１図ないし
第３図参照）。本発明の流量計は、例えば蒸気使用装置
とスチームトラップの間に接続して使用する。<Example> An example showing a specific example of the present invention will be described (see Figs. 1 to 3). The flowmeter of the present invention is used, for example, by connecting it between a steam using device and a steam trap.
10は管体でその内部には蒸気12と腹水14が存在し、腹水
14が図の左から右へ流れている。管体10の内部中心に管
体10と垂直に、有底の円筒形状で上端にフランジを形成
した隔壁16を配置し、管体10の外側からボルト18で固定
する。10 is a tubular body, inside which steam 12 and ascites 14 exist,
14 flows from left to right in the figure. A partition wall 16 having a cylindrical shape with a bottom and a flange formed at the upper end is arranged at the center of the inside of the pipe body 10 perpendicularly to the pipe body 10, and is fixed by a bolt 18 from the outside of the pipe body 10.
隔壁16周りにフロート20を配置する。フロート20は第３
図に示すように、右側の径を大きく、即ち隔壁16で案内
される孔の中心から遠ざけて形成し、かつ先細りに形成
する。フロート20に環状の磁石22を取り付ける。The float 20 is arranged around the partition wall 16. Float 20 is third
As shown in the figure, the diameter on the right side is large, that is, it is formed away from the center of the hole guided by the partition wall 16 and is tapered. An annular magnet 22 is attached to the float 20.
隔壁16の内部に操作棒24を配置し、その下端の磁石22に
対向する位置に磁石26を取り付ける。磁石22と26の一方
は磁性体であってもよい。The operating rod 24 is arranged inside the partition wall 16, and the magnet 26 is attached to the lower end of the operating rod 24 at a position facing the magnet 22. One of the magnets 22 and 26 may be a magnetic body.
操作棒24の上端に検出部材28を取り付ける。検出部材28
はほぼ円錐形状で上下に貫通孔30を開けている。参照番
号32は断熱部材、34はカバーである。A detection member 28 is attached to the upper end of the operating rod 24. Detection member 28
Has a substantially conical shape and has a through hole 30 formed in the top and bottom. Reference numeral 32 is a heat insulating member, and 34 is a cover.
カバー34内の上下に光線を投射する投光装置36と、投光
装置36からの光線を受光する受光装置38を配置する。投
光装置36からの光線は、検出部材28に開けた貫通孔と投
光装置36及び受光装置38が同一軸上に並んだときに、受
光装置38に受光される。A light projecting device (36) for projecting light rays up and down inside the cover (34) and a light receiving device (38) for receiving the light beam from the light projecting device (36) are arranged. The light beam from the light projecting device 36 is received by the light receiving device 38 when the through hole formed in the detection member 28 and the light projecting device 36 and the light receiving device 38 are aligned on the same axis.
また、カバー34内の左右に第２図に示すように、帯状の
光線を投射する投光装置40と、投光装置40からの光線を
受光する受光装置42を配置する。投光装置40からの光線
は検出部材28の上下位置によって、受光装置に受光され
る量が変化する。As shown in FIG. 2, a light projecting device 40 for projecting a band-shaped light beam and a light receiving device 42 for receiving the light beam from the light projecting device 40 are arranged on the left and right sides inside the cover 34. The amount of the light beam from the light projecting device 40 received by the light receiving device changes depending on the vertical position of the detection member 28.
受光装置38と42は演算装置（図示せず）に連結する。演
算装置は受光装置38で検出した光線の受光回数から流速
を演算すると共に、受光装置42で検出した光線量から液
位を演算し、流速と液位から流量を演算する。The light receiving devices 38 and 42 are connected to a computing device (not shown). The arithmetic unit calculates the flow velocity from the number of times the light beam is detected by the light receiving device 38, calculates the liquid level from the amount of the light beam detected by the light receiving device 42, and calculates the flow rate from the flow velocity and the liquid level.
〈発明の効果〉 上記のように、本発明野液体流量計によれば、蒸気と腹
水のような二相流が流れている状態で腹水のみの流量を
測定することができる。従って、蒸気と腹水とを分離す
るためのセパレータや、分離された腹水のみを流すため
の配管が不要となり、流量計を小型に作ることができ
る。<Effects of the Invention> As described above, according to the liquid flowmeter of the present invention, the flow rate of only ascitic fluid can be measured in the state where the two-phase flow such as steam and ascites fluid is flowing. Therefore, a separator for separating steam and ascites and a pipe for flowing only the separated ascites are unnecessary, and the flowmeter can be made compact.
また、フロートが上下に変位するのみでは、フロートと
隔壁の間に滑り摩擦抵抗が働くが、本発明ではフロート
は左右に揺ぐので、フロートと隔壁の間には転がり摩擦
抵抗が働き、変位抵抗を小さくできる。Further, when the float is displaced only up and down, sliding frictional resistance works between the float and the partition wall, but in the present invention, since the float sways left and right, rolling frictional resistance works between the float and the partition wall, and the displacement resistance Can be made smaller.
第１図はこの発明による液体流量計の一実施例の断面
図、第２図は第１図のII−II線断面図、第３図は第１図
のIII−III線断面図、第４図は従来の液体流量計の配管
図である。 10:管体、12:気相 14:液相、16:隔壁 20:フロート、22,26:磁石 28:検出部材、36,40:投光装置 38,42:受光装置1 is a sectional view of an embodiment of the liquid flowmeter according to the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a sectional view taken along the line III-III in FIG. The figure is a piping diagram of a conventional liquid flow meter. 10: Tube, 12: Gas phase 14: Liquid phase, 16: Partition wall 20: Float, 22,26: Magnet 28: Detection member, 36, 40: Emitter 38, 42: Light receiver
Claims (1)
管体に垂直に配置した隔壁と、隔壁の周りに配置した異
径フロートと、異径フロートの上下方向の位置から液位
を演算する手段と、異径フロートの左右の揺ぎ回数から
流速を演算する手段と、液位と流速とに基づいて液相の
流量を演算する手段とからなる流体用流量計。1. A tube body in which a gas phase and a liquid phase flow in layers,
The partition wall arranged vertically to the pipe body, the different diameter floats arranged around the partition wall, the means for calculating the liquid level from the vertical position of the different diameter float, and the flow velocity from the left and right shaking times of the different diameter float. A flowmeter for fluid, comprising a calculating means and a means for calculating the flow rate of the liquid phase based on the liquid level and the flow velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2276706A JPH0748053B2 (en) | 1990-10-15 | 1990-10-15 | Liquid flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2276706A JPH0748053B2 (en) | 1990-10-15 | 1990-10-15 | Liquid flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04151516A JPH04151516A (en) | 1992-05-25 |
| JPH0748053B2 true JPH0748053B2 (en) | 1995-05-24 |
Family
ID=17573195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2276706A Expired - Fee Related JPH0748053B2 (en) | 1990-10-15 | 1990-10-15 | Liquid flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748053B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2037244A (en) * | 2024-03-13 | 2024-04-03 | Univ Tianjin | Measurement system for detecting water depth and water flow velocity |
-
1990
- 1990-10-15 JP JP2276706A patent/JPH0748053B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2037244A (en) * | 2024-03-13 | 2024-04-03 | Univ Tianjin | Measurement system for detecting water depth and water flow velocity |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04151516A (en) | 1992-05-25 |
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