JPS6326848B2 - - Google Patents
Info
- Publication number
- JPS6326848B2 JPS6326848B2 JP55031651A JP3165180A JPS6326848B2 JP S6326848 B2 JPS6326848 B2 JP S6326848B2 JP 55031651 A JP55031651 A JP 55031651A JP 3165180 A JP3165180 A JP 3165180A JP S6326848 B2 JPS6326848 B2 JP S6326848B2
- Authority
- JP
- Japan
- Prior art keywords
- steam
- flow meter
- flowmeter
- water
- pressure
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Description
【発明の詳細な説明】
この発明は、蒸気用流量計の試験装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a testing device for steam flowmeters.
この種の蒸気を計測するものとしてたとえば第
１図に示すような蒸気用流量計が知られている。
この蒸気用流量計は、加熱された蒸気を流通管部
１内に流通させ、オリフイス２を挾んで流通管部
１と連通する分流管３のノズル４より一定比の蒸
気を分流させると共にその分流作用で翼車回転子
５を回転させて流量に比例した回転量を得るよう
に構成されているが、流れる流体が気体であるこ
とおよび高温度であることのために蒸気流量計自
体の精度を簡単に検定試験する方法がまだ知られ
ていない。 For example, a steam flow meter as shown in FIG. 1 is known as a device for measuring this type of steam.
This steam flow meter allows heated steam to flow through a flow pipe section 1, and divides a certain ratio of steam from a nozzle 4 of a flow distribution pipe 3 that sandwiches an orifice 2 and communicates with the flow pipe section 1. The blade wheel rotor 5 is rotated by the action to obtain a rotation amount proportional to the flow rate, but since the flowing fluid is a gas and has a high temperature, the accuracy of the steam flow meter itself is affected. There is still no known way to easily perform the certification test.
この発明は叙上の点に着目して成されたもので
簡単なシステムにより高温度使用の蒸気流量計の
精度を検査できるようにした蒸気用流量計の試験
装置を提供するにある。 The present invention has been made in view of the above points, and it is an object of the present invention to provide a testing device for a steam flowmeter that is capable of testing the accuracy of a steam flowmeter used at high temperatures using a simple system.
すなわち、この発明の特徴とする処は、検査さ
れる蒸気用流量計の下流側に復水機構を設け、こ
の復水機構で凝縮した復水を一定圧力の下に基準
流量計により計測して前記蒸気用流量計の指示量
と比較して較正できるようにした蒸気用流量計の
試験装置を得ることを目的とする。 In other words, the feature of this invention is that a condensing mechanism is provided downstream of the steam flow meter to be inspected, and the condensed water condensed in this condensing mechanism is measured under constant pressure by a reference flow meter. It is an object of the present invention to obtain a test device for a steam flow meter that can be calibrated by comparing with the indicated amount of the steam flow meter.
以下にこの発明の一実施例を図面と共に説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
６は蒸気を発生するためのボイラー、７は蒸気
を分岐し、かつ所望の圧力に調整できるヘツダー
で、例えば蒸気圧力を３〜５Kg／cm2Ｇの飽和蒸気
あるいは加熱蒸気が得られるようになつている。
８はこのヘツダー７と接続されるアキユームレー
ターで蒸気を熱水として貯溜したり、あるいは貯
溜された熱水を蒸気として取り出したりできるよ
うになつている。９はこのヘツダー７から導出さ
れる配管で、圧力自動制御弁１０を介して試験さ
れる蒸気用流量計ａ（どんな型式の流量計でもよ
い。）が介装され、これに続いて下流側に復水器
１１が接続されている。この復水器１１は冷却水
循環回路１２が熱交換器を介して設けられ、蒸気
を凝結して復水とすることができる。１３はさら
に配管９の下流側に介装した液面制御タンクで、
前記復水器１１と別体でも一体でもよい。１４は
前記液面制御タンク１３に貯溜した水の液面を一
定レベルに制御しながら一定圧力の下に配管９に
設けた基準流量計Ａ内を流通させることができる
制御バルブで、基準流量計Ａの下流側に設けてあ
る。 6 is a boiler for generating steam, and 7 is a header that can branch the steam and adjust it to a desired pressure, for example, to obtain saturated steam or heated steam with a steam pressure of 3 to 5 kg/cm 2 G. ing.
8 is an accumulator connected to this header 7, which can store steam as hot water or take out the stored hot water as steam. 9 is a piping led out from this header 7, which is equipped with a steam flow meter a (any type of flow meter may be used) to be tested via an automatic pressure control valve 10, and then connected to the downstream side. A condenser 11 is connected. This condenser 11 is provided with a cooling water circulation circuit 12 via a heat exchanger, and can condense steam into condensed water. 13 is a liquid level control tank installed downstream of the pipe 9;
It may be separate from the condenser 11 or may be integrated therewith. Reference numeral 14 denotes a control valve that allows water to flow through the reference flowmeter A provided in the piping 9 under a constant pressure while controlling the level of water stored in the liquid level control tank 13 at a constant level. It is provided on the downstream side of A.
なお、配管９には、圧力計Ｐが蒸気用流量計ａ
の上流側に、また温度計Ｔが基準流量計Ａの上流
側に設けてあると共に配管９の下流端は前記ボイ
ラー６と連結されて蒸気が水となつて還流できる
ようになつている。また復水器１１には復水密度
が測定できるようになつている。 In addition, in the piping 9, a pressure gauge P is connected to a steam flow meter a.
A thermometer T is provided upstream of the reference flowmeter A, and the downstream end of the piping 9 is connected to the boiler 6 so that steam can be returned as water. The condenser 11 is also equipped with a device that allows the density of condensate to be measured.
叙上の構成に基いてこの発明の作用を説明す
る。 The operation of this invention will be explained based on the above configuration.
まず、蒸気はボイラー６で生成され、ヘツダー
７に入りその一部はアキユームレーター８内に侵
入して熱水となつて貯溜する。またヘツダー７の
蒸気は所望の蒸気圧力３〜５Kg／cm2Ｇの飽和蒸気
あるいは加熱蒸気となつて配管９内に流れ、測定
される蒸気用流量計ａ内を流れる。 First, steam is generated in the boiler 6, enters the header 7, and a portion of it enters the accumulator 8, where it becomes hot water and is stored. Further, the steam in the header 7 becomes saturated steam or heated steam with a desired steam pressure of 3 to 5 kg/cm 2 G and flows into the pipe 9 and flows through the steam flowmeter a to be measured.
この場合、ヘツダー７は蒸気の圧力を調整する
と共にアキユームレーター８との連通によりこの
アキユームレーター８内の熱水を気化させて蒸気
として配管９内に補給する働きも奏する。 In this case, the header 7 not only adjusts the pressure of the steam, but also works to vaporize the hot water in the accumulator 8 through communication with the accumulator 8 and replenish it into the pipe 9 as steam.
しかも、配管９内を流れる蒸気がたえず一定の
飽和圧力の条件を保持するように働くものであ
る。 Furthermore, the steam flowing through the pipe 9 constantly maintains a constant saturation pressure condition.
上述のようにこの配管９内の蒸気は、検査され
る蒸気用流量計ａ内に流入して流量計が計測され
るが、次段の復水器１１において凝結し復水とな
る。この水はさらに次の液面制御タンク１３内に
入り、一定の液面制御の下に一定水圧をもつて水
を基準流量計Ａ内に流しこの基準流量計Ａの数値
を計測する。 As described above, the steam in this pipe 9 flows into the steam flow meter a to be inspected and is measured by the flow meter, but it condenses in the next stage condenser 11 and becomes condensed water. This water further enters the next liquid level control tank 13 and flows into the reference flowmeter A under constant liquid level control with a constant water pressure to measure the numerical value of this reference flowmeter A.
この基準流量計Ａを流れる水の計測値は、明ら
かに蒸気用流量計ａを流れる蒸気の量に相当し、
両者の値の差がすなわち積算器差に相当する。 The measured value of water flowing through this reference flowmeter A clearly corresponds to the amount of steam flowing through steam flowmeter a,
The difference between the two values corresponds to the integrator difference.
もちろん、圧力、温度、密度などの諸条件を加
味して対比することにより蒸気用流量計ａの指示
量は、その換算値と比較して容易に積算器差を測
定できる。 Of course, by comparing various conditions such as pressure, temperature, density, etc., the amount indicated by the steam flow meter a can be compared with its converted value to easily measure the integrator difference.
なお、液面制御バルブ１４を流れた配管９内の
水は再びボイラー６内に還流される。 Note that the water in the pipe 9 that has flowed through the liquid level control valve 14 is returned to the boiler 6 again.
この発明は叙上のように、蒸気用流量計がその
蒸気用流量計を流通した後の凝縮した復水をその
まゝ一定の圧力状態で基準流量計に流がしてその
流量を換算計数することにより両者を比較して蒸
気用流量計の精度を試験するようにしたので全体
の試験装置は頗る簡単であると共に蒸気の状態で
計測した値を凝結した復水の状態に位相変化させ
て実質的に同一な流体によつて基準流量計の計測
値を対比試験しているので、この種のすべての型
式の蒸気用流量計に適用して高精度の検査がで
き、しかも、液面制御タンクの水面をたえず一定
に保つようにしているので、蒸気用流量計を流れ
る蒸気の条件を常に一定に保持することができ、
常に一定の計測条件で試験することができる。 As described above, this invention allows the condensed water that has passed through the steam flow meter to flow as it is to the reference flow meter at a constant pressure, and calculates the flow rate by converting the condensed water through the steam flow meter. By comparing the two, we tested the accuracy of the steam flow meter, so the overall test equipment was extremely simple, and the phase of the value measured in the steam state was changed to the condensed water state. Since the measurement values of the reference flowmeter are compared and tested using virtually the same fluid, it can be applied to all types of steam flowmeters for highly accurate inspection, and is also suitable for liquid level control. Since the water level in the tank is constantly kept constant, the conditions for the steam flowing through the steam flow meter can be maintained constant.
Tests can always be performed under constant measurement conditions.
第１図は従来公知の蒸気用流量計の説明断面
図、第２図はこの発明に係る蒸気用流量計の試験
装置の一実施例を示す説明図である。
６……ボイラー、７……ヘツダー、８……アキ
ユームレーター、９……配管、１１……復水器、
ａ……蒸気用流量計、Ａ……基準流量計。
FIG. 1 is an explanatory sectional view of a conventionally known steam flow meter, and FIG. 2 is an explanatory diagram showing an embodiment of a steam flow meter testing apparatus according to the present invention. 6...boiler, 7...header, 8...accumulator, 9...piping, 11...condenser,
a... Steam flow meter, A... Reference flow meter.
Claims (1)
計を取り付け、この蒸気用流量計の下流側に復水
機構を設け、この復水機構で凝縮された水を液面
制御タンクに貯溜し、この液面制御タンク内の水
を一定レベルに保つようにして一定圧力の水を基
準流量計に流し、この基準流量計で測定された計
測値と前記蒸気用流量計の指示値と比較すること
により前記蒸気用流量計を校正するようにしたこ
とを特徴とする蒸気用流量計の試験装置。 ２ 前記蒸気の圧力、復水の温度、密度を計測す
ることにより蒸気の質量流量を求めるようにした
ことを特徴とする特許請求の範囲第１項記載の蒸
気用流量計の試験装置。[Claims] 1. A steam flowmeter to be verified is attached to the piping through which steam passes, a condensation mechanism is provided downstream of this steam flowmeter, and water condensed by this condensation mechanism is brought to the liquid level. The water at a constant pressure is stored in a control tank and maintained at a constant level in the liquid level control tank, and then flowed to a reference flowmeter, and the measurement value measured by this reference flowmeter is compared with that of the steam flowmeter. A testing device for a steam flow meter, characterized in that the steam flow meter is calibrated by comparing it with an indicated value. 2. The test device for a steam flow meter according to claim 1, wherein the mass flow rate of steam is determined by measuring the pressure of the steam, the temperature, and the density of the condensate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3165180A JPS56128425A (en) | 1980-03-14 | 1980-03-14 | Testing apparatus of flowmeter for vapor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3165180A JPS56128425A (en) | 1980-03-14 | 1980-03-14 | Testing apparatus of flowmeter for vapor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56128425A JPS56128425A (en) | 1981-10-07 |
| JPS6326848B2 true JPS6326848B2 (en) | 1988-05-31 |
Family
ID=12337072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3165180A Granted JPS56128425A (en) | 1980-03-14 | 1980-03-14 | Testing apparatus of flowmeter for vapor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56128425A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101094941B1 (en) | 2011-04-28 | 2011-12-15 | 한국기계연구원 | High temperature / high pressure flow meter calibration device and method |
| CN111927574B (en) * | 2020-06-18 | 2022-06-07 | 华电电力科学研究院有限公司 | Test device for indirectly testing steam leakage amount of steam seal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55132916A (en) * | 1979-04-04 | 1980-10-16 | Toshiba Corp | Verification method of feed-water and condensate flow meter |
-
1980
- 1980-03-14 JP JP3165180A patent/JPS56128425A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56128425A (en) | 1981-10-07 |
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