JPS604096Y2 - flow measuring device - Google Patents
flow measuring deviceInfo
- Publication number
- JPS604096Y2 JPS604096Y2 JP8252880U JP8252880U JPS604096Y2 JP S604096 Y2 JPS604096 Y2 JP S604096Y2 JP 8252880 U JP8252880 U JP 8252880U JP 8252880 U JP8252880 U JP 8252880U JP S604096 Y2 JPS604096 Y2 JP S604096Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- measuring device
- suction port
- flow rate
- piezo tube
- 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】
本考案は押込送風機の流量を測定するピエゾチューブを
用いた流量測定装置に関するものである。[Detailed Description of the Invention] The present invention relates to a flow rate measuring device using a piezo tube for measuring the flow rate of a forced air blower.
ピエゾチューブ自体は流量を測定するための手段として
既存のものであるが、押込送風機の吸込口の形状、たと
えば袖付、サイレンサ付などに対する特性が明確には解
析されておらず、このためボイラの風量制御としての再
現性及び発生差圧が小さいなどを考慮すると実用上難点
があった。Although the piezo tube itself is an existing means for measuring flow rate, the characteristics of the shape of the forced air blower's suction port, such as sleeves or silencer, have not been clearly analyzed, and for this reason, the air flow rate of the boiler has not been clearly analyzed. There are practical difficulties when considering the reproducibility of control and the small differential pressure generated.
本考案はこの欠点を排除するものであって、ピエゾチュ
ーブを用いた押込送風機の流量測定装置。The present invention eliminates this drawback and provides a flow rate measuring device for a forced air blower using a piezo tube.
において、ピエゾチューブを上記送風機の吸込口の外縁
部近傍か、該吸込口の縮流発生部であってその入口に近
い位置かの少なくともどちらか一方に、上記チューブの
なす平面が流体の流れと直交するように配設したことを
特徴とし、その目的とするところは、各吸込口形状にお
けるピエゾチューブの特性を解析した結果としての適正
な取付位置を見極め、発生差圧を増大化せしめた流量測
定装置を提供するものである。In this case, the piezo tube is placed near the outer edge of the suction port of the blower, or at a position where the contraction occurs in the suction port and close to the inlet thereof, so that the plane formed by the tube coincides with the fluid flow. It is characterized by the fact that they are arranged perpendicularly to each other, and the purpose is to determine the appropriate mounting position as a result of analyzing the characteristics of the piezo tube for each suction port shape, and to increase the flow rate that increases the differential pressure generated. The present invention provides a measuring device.
第１図および第２図に示すように、ピエゾチューブＡは
円弧型に曲げられた差圧引出管２と間管２の一側に開け
られた差圧検出孔１とからなるものである。As shown in FIGS. 1 and 2, the piezo tube A consists of a differential pressure extraction tube 2 bent into an arc shape and a differential pressure detection hole 1 formed on one side of the intermediate tube 2. As shown in FIGS.
上記ピエゾチューブＡを用いた考案の一実施例を第３図
に示す。An embodiment of the invention using the piezo tube A described above is shown in FIG.
３は押込送風機、４はその電動機であって、支持台５上
に乗せられている。3 is a forced air blower, and 4 is its electric motor, which is placed on a support stand 5.
上記送風機３の吸込口６の上流側には袖７および縦置サ
イレンサ９が接続されている。A sleeve 7 and a vertical silencer 9 are connected to the upstream side of the suction port 6 of the blower 3.
ピエゾチューブＡの曲げ半径は上記吸込口６の径とほぼ
等しく作られており、該吸込口６の上半内部の外縁部近
傍に配設されている。The bending radius of the piezo tube A is made approximately equal to the diameter of the suction port 6, and is arranged near the outer edge inside the upper half of the suction port 6.
このようにすることにより、ピエゾチューブＡにより測
定される発生差圧は流量の２乗に比例することになり、
制御に十分な差圧を得ることが出来た。By doing this, the differential pressure generated by the piezo tube A will be proportional to the square of the flow rate.
We were able to obtain sufficient differential pressure for control.
なお、数多くの実験により、吸込口の外縁部近傍とは、
外縁部より中心部へ２００ｒｒｒＩｎの範囲である。In addition, through numerous experiments, the vicinity of the outer edge of the suction port is
The range is 200rrrIn from the outer edge to the center.
次に横置サイレンサ付の押込送風機での実施例を第４図
に示す。Next, FIG. 4 shows an embodiment of a forced air blower equipped with a horizontal silencer.
１０は横置サイレンサであって、吸込口６の先端を覆う
ように取り付けられている。Reference numeral 10 denotes a horizontal silencer, which is attached to cover the tip of the suction port 6.
ピエゾチューブＡは吸込口６の外縁部近傍ａまたは縮流
発生部すの入口近傍の少なくとも一方に取り付ける。The piezo tube A is attached to at least one of the vicinity of the outer edge a of the suction port 6 or the vicinity of the inlet of the contraction generating section.
このようにすることにより、ピエゾチューブＡにより測
定される発生差圧は流量の２乗に比例することになり、
制御に十分な差圧を得ることが出来た。By doing this, the differential pressure generated by the piezo tube A will be proportional to the square of the flow rate.
We were able to obtain sufficient differential pressure for control.
なお、数多くの実験により、縮流発生部の入口近傍とは
吸込口より入口径の２倍までの範囲である。It should be noted that, through numerous experiments, the vicinity of the inlet of the contracted flow generating section is the range up to twice the inlet diameter from the suction port.
更には、より大きな発生差圧が必要な時の実施例を第５
図に示す。Furthermore, the fifth example describes a case where a larger differential pressure is required.
As shown in the figure.
吸込口６の外縁部近傍にピエゾチューブＡを配設すると
ともに、円錐台形のガイドプレート１１を取り付ける。A piezo tube A is disposed near the outer edge of the suction port 6, and a truncated conical guide plate 11 is attached.
なお、ガイドプレート１１の開き角度θは４０度ないし
６０度が好ましい。Note that the opening angle θ of the guide plate 11 is preferably 40 degrees to 60 degrees.
第１図はピエゾチューブの平面図。
第２図は第１図の正面図。
第３図は本考案の一実施例を示す装置の側面図。
第４図および第５図は本考案の他の実施例を示す装置で
あって、第４図は模型サイレンサを取り付けた場合、第
５図はガイドプレートを取り付けた場合を示す側面図で
ある。
３・・・・・・押込送風機、６・・・・・・吸込口、１
１・・・・・・ガイドプレート、Ａ・・・・・ゼエゾチ
ューブ。Figure 1 is a plan view of the piezo tube. FIG. 2 is a front view of FIG. 1. FIG. 3 is a side view of a device showing an embodiment of the present invention. FIGS. 4 and 5 show a device according to another embodiment of the present invention, in which FIG. 4 is a side view showing a case where a model silencer is attached, and FIG. 5 is a side view showing a case where a guide plate is attached. 3... Forced blower, 6... Suction port, 1
1...Guide plate, A...Zezo tube.
Claims (1)
いて、ピエゾチューブを上記送風機の吸込口の外縁部近
傍か、該吸込口の縮流発生部であってその入口に近い位
置かの少なくともどちらか一方に、上記チューブのなす
平面が流体の流れと直交するように配設したことを特徴
とする流量測定装置。In a forced air blower flow rate measuring device using a piezo tube, the piezo tube is placed at least either near the outer edge of the air inlet of the air blower or at a position close to the inlet of the air contracted flow generating part of the air inlet. . A flow rate measuring device, characterized in that the tube is arranged so that a plane formed by the tube is perpendicular to the flow of the fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8252880U JPS604096Y2 (en) | 1980-06-13 | 1980-06-13 | flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8252880U JPS604096Y2 (en) | 1980-06-13 | 1980-06-13 | flow measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS576019U JPS576019U (en) | 1982-01-12 |
| JPS604096Y2 true JPS604096Y2 (en) | 1985-02-05 |
Family
ID=29444878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8252880U Expired JPS604096Y2 (en) | 1980-06-13 | 1980-06-13 | flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604096Y2 (en) |
-
1980
- 1980-06-13 JP JP8252880U patent/JPS604096Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS576019U (en) | 1982-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60127420U (en) | Exhaust gas sample extraction device | |
| JPS6281042U (en) | ||
| JPS6050767U (en) | Accumulator | |
| JPS6184853U (en) | ||
| JPH01129557U (en) | ||
| JPS594944U (en) | Outdoor combustion equipment | |
| JPS6220620U (en) | ||
| JPS5825913U (en) | Built-in cooking device | |
| JPS61170827U (en) | ||
| JPS5844015U (en) | Wind guide device for tea leaf plucking machine | |
| JPS63135497U (en) | ||
| JPS58156240U (en) | pressure sensing device | |
| JPH033432U (en) | ||
| JPS61206837U (en) | ||
| JPS60116153U (en) | Valve structure for solar heat collector | |
| JPH03116758U (en) | ||
| JPH02107715U (en) | ||
| JPH0237361U (en) | ||
| JPS58122840U (en) | exhaust top | |
| JPS59139843U (en) | Tank fluid heating device | |
| JPH01136257U (en) | ||
| JPS62146056U (en) | ||
| JPS62123383U (en) | ||
| JPS6256935U (en) | ||
| JPH049615U (en) |