JP3083598U - Average wind speed measuring device in pipeline - Google Patents
Average wind speed measuring device in pipelineInfo
- Publication number
- JP3083598U JP3083598U JP2001000867U JP2001000867U JP3083598U JP 3083598 U JP3083598 U JP 3083598U JP 2001000867 U JP2001000867 U JP 2001000867U JP 2001000867 U JP2001000867 U JP 2001000867U JP 3083598 U JP3083598 U JP 3083598U
- Authority
- JP
- Japan
- Prior art keywords
- pressure measuring
- total pressure
- static pressure
- pipe
- measuring 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 - Fee Related
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
(57)【要約】 （修正有）
【課題】速度分布のある管路内の流体の管路内平均風速
を簡単な構造で測定できる管路内平均風速測定装置を提
供する。
【解決手段】円形断面の静圧測定管２の先端部が管路５
に対して平行になるように形成された静圧測定管平行部
２４が、リング状に形成された全圧測定管１の中央部に
挿通される位置に固定され、管路に対し、直角位置に固
定され、全圧測定管と静圧測定管平行部との角度は９０
度に固定される。全圧測定管の気体流方向に対する面に
複数の全圧測定孔１１を等間隔で設け、終端部は閉塞さ
れている。静圧測定管の先端部は閉塞され、水平部の周
囲に複数の静圧測定孔２１が設けられ、全圧測定管直立
部１３と静圧測定管直立部２３とが鑞付けされ、更に角
ダクト取付板又は丸ダクト取付板３１に鑞付け固定さ
れ、且つ、リング状の全圧測定管が管路と同心円位置に
配置され、固定されている。
(57) [Summary] (Modifications) [Problem] To provide an in-pipe average wind speed measurement device capable of measuring the in-pipe average wind speed of a fluid in a pipe having a velocity distribution with a simple structure. A tip of a static pressure measuring pipe (2) having a circular cross section is a pipe (5).
Is fixed at a position where it is inserted into the center of the ring-shaped total pressure measuring tube 1 so as to be parallel to the pipe. And the angle between the total pressure measuring tube and the parallel part of the static pressure measuring tube is 90
Fixed at every time. A plurality of total pressure measurement holes 11 are provided at equal intervals on the surface of the total pressure measurement tube in the gas flow direction, and the end portion is closed. The front end of the static pressure measurement tube is closed, a plurality of static pressure measurement holes 21 are provided around the horizontal portion, the total pressure measurement tube upright portion 13 and the static pressure measurement tube upright portion 23 are brazed, and the corner is further angled. The total pressure measuring pipe is brazed and fixed to the duct mounting plate or the round duct mounting plate 31, and the ring-shaped total pressure measuring tube is arranged and fixed at a position concentric with the pipeline.
Description
【０００１】[0001]
本考案は管路内平均風速測定装置に関し、特に速度分布のある管路内の流体の 管路内平均風速を簡単な構造で測定することのできる管路内平均風速測定装置に 関するものである。 The present invention relates to an average wind speed measuring device in a pipeline, and more particularly to an average wind speed measuring device in a pipeline capable of measuring an average wind speed in a pipeline having a velocity distribution with a simple structure. .
【０００２】[0002]
従来、管路内の風速を測定するには公知の標準的なピトー管が用いられている が、特に管路内に於いて風速分布を持つ気体の平均風速を測定するためには、複 数個所での測定や複数の標準的なピトー管を用いたりして行い、又は特開平９− ２２２３４６に開示されるようにダクト補強部の複数の支持パイプに圧力孔を設 けたりして行っていた。 Conventionally, a well-known standard pitot tube has been used to measure the wind speed in a pipeline.However, in order to measure the average wind speed of a gas having a wind speed distribution in a pipeline, a plurality of standard pitot tubes are required. Measurement is performed at a location, using a plurality of standard pitot tubes, or by providing pressure holes in a plurality of support pipes of the duct reinforcement as disclosed in JP-A-9-222346. Was.
【０００３】[0003]
前記せるような従来公知の標準的なピトー管は二重管となっており、製造コス トも高く、複数個所での測定では更にコストアップとなる問題があった。 The conventionally known standard pitot tube as described above is a double tube, the production cost is high, and there is a problem in that the measurement at a plurality of places further increases the cost.
【０００４】[0004]
本考案は、上記問題点を解決すべく鋭意研究の結果に於いて創案されたもので あり、管路内に於いて風速分布を持つ気体の平均風速を測定するために有効な管 路内平均風速測定装置を提供するものである。即ち、円形断面の金属管からなる 静圧測定管の先端部が管路に対して平行位置になるように形成された静圧測定管 平行部が、円形断面の金属管からなりリング状に形成された全圧測定管の中央部 に挿通される位置に固定されており、リング状に形成された全圧測定管が管路に 対して直角位置に固定されるように構成したことを特徴とし、リング状に形成さ れた全圧測定管と静圧測定管平行部との角度が９０度に固定され、リング状に形 成された全圧測定管の気体流方向に対する面に複数の全圧測定孔を等間隔で設け 、静圧測定管先端部が閉塞されており、静圧測定管平行部の周囲に複数の静圧測 定孔を設けたことを特徴とし、全圧測定管の先端部が封塞されており、全圧測定 管直立部と静圧測定管直立部とが鑞付されて固定され、更に角ダクト取付板又は 丸ダクト取付板に鑞付されて固定されていることを特徴とし、且つ、リング状に 形成された全圧測定管が丸ダクトの断面と同心円位置に配置されて固定され、又 は角ダクトにはリング状に形成された全圧測定管のリング状の中心が角ダクトの 中心に一致するように配置されて固定されるように構成したことを特徴とする管 路内平均風速測定装置を提供するものである。 The present invention was created as a result of earnest research to solve the above-mentioned problems, and is effective in measuring the average wind speed of gas having a wind speed distribution in a pipe. A wind speed measuring device is provided. In other words, the static pressure measuring tube formed so that the tip of the static pressure measuring tube made of a metal tube having a circular cross section is positioned parallel to the pipeline, and the parallel portion is formed of a metal tube having a circular cross section and formed in a ring shape. The total pressure measurement pipe is fixed at a position where it is inserted into the center of the total pressure measurement pipe, and the ring-shaped total pressure measurement pipe is configured to be fixed at a right angle to the pipeline. The angle between the ring-shaped total pressure measuring tube and the parallel portion of the static pressure measuring tube is fixed at 90 degrees, and a plurality of total pressure measuring tubes are formed on the surface of the ring-shaped total pressure measuring tube in the gas flow direction. Pressure measuring holes are provided at equal intervals, the tip of the static pressure measuring tube is closed, and a plurality of static pressure measuring holes are provided around the parallel portion of the static pressure measuring tube. The tip is sealed, and the total pressure measurement tube upright and the static pressure measurement tube upright are brazed and fixed. Characterized in that it is brazed and fixed to the duct mounting plate or round duct mounting plate, and the ring-shaped total pressure measuring tube is arranged and fixed at a position concentric with the cross section of the round duct, and In the square duct, the ring-shaped center of the ring-shaped total pressure measuring tube is arranged and fixed so that it matches the center of the square duct. A measuring device is provided.
【０００５】[0005]
以下、本考案を図面に示す実施の形態に基づいて詳細に説明する。 図面に於いて、図１は本発明の管路内平均流量測定装置の正面図、図２は本発明 の管路内平均流量測定装置の側面図、図３は図１のＡ−Ａ線断面図、図３は図１ のＢ−Ｂ線の部分断面図である。 Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. In the drawings, FIG. 1 is a front view of an apparatus for measuring an average flow rate in a pipe according to the present invention, FIG. 2 is a side view of the apparatus for measuring an average flow rate in a pipe according to the present invention, and FIG. FIG. 3 is a partial cross-sectional view taken along line BB of FIG.
【０００６】 本考案管路内平均風速測定装置の基本的構成はリング状に形成された全圧測定 管１と静圧測定管２とによって構成され、管路５内に取り付けられる。The basic configuration of the average wind speed measuring device in a pipeline according to the present invention is constituted by a ring-shaped total pressure measuring tube 1 and a static pressure measuring tube 2, which are mounted in a pipeline 5.
【０００７】 円形断面の金属管からなる静圧測定管２は、その先端部が管路５に対して平行 位置になるように形成された静圧測定管平行部２４が、円形断面の金属管からな りリング状に形成された全圧測定管１の中央部に挿通される位置に固定され、リ ング状に形成された全圧測定管１が管路５に対して直角位置に固定されている。The static pressure measuring tube 2 made of a metal tube having a circular cross section has a static pressure measuring tube parallel portion 24 formed so that the tip end thereof is in a position parallel to the pipe line 5. The ring-shaped total pressure measuring tube 1 is fixed at a position inserted through the center of the ring-shaped total pressure measuring tube 1, and the ring-shaped total pressure measuring tube 1 is fixed at a position perpendicular to the pipe 5. ing.
【０００８】 リング状に形成された全圧測定管１と静圧測定管水平部２４との角度Ｒは図２ に示されるように９０度に固定されており、リング状に形成された全圧測定管１ の気体流方向Ｃに対する面に複数の全圧測定孔１１、１１・・・１１が等間隔で 設けられている。また、静圧測定管先端部が閉塞されており、静圧測定管水平部 ２４の周囲には複数の静圧測定孔２１、２１・・２１が設けられけいる。The angle R between the ring-shaped total pressure measuring tube 1 and the static pressure measuring tube horizontal portion 24 is fixed at 90 degrees as shown in FIG. A plurality of total pressure measurement holes 11, 11,... 11 are provided at equal intervals on a surface of the measurement tube 1 with respect to the gas flow direction C. In addition, the tip of the static pressure measuring tube is closed, and a plurality of static pressure measuring holes 21 are provided around the horizontal portion 24 of the static pressure measuring tube.
【０００９】 全圧測定管１の先端部は封塞され、鑞付部１５にて鑞付されており、全圧測定 管直立部１３と静圧測定管直立部２３とは互いに鑞付部４によってされて固定さ れており、更に角ダクト用取付板３又は丸ダクト用取付板３１に鑞付部３２によ って鑞付され、これによって固定部が補強されている。 角ダクト取付板３又は丸ダクト取付板３１は、それぞれ管路が角ダクト又は丸ダ クトの場合に応じて固定される。The tip of the total pressure measuring tube 1 is sealed and brazed at a brazing portion 15, and the total pressure measuring tube upright portion 13 and the static pressure measuring tube upright portion 23 are mutually brazed at the brazing portion 4. It is further brazed to the mounting plate 3 for a square duct or the mounting plate 31 for a round duct by a brazing portion 32, whereby the fixing portion is reinforced. The square duct mounting plate 3 or the round duct mounting plate 31 is fixed depending on whether the duct is a square duct or a round duct, respectively.
【００１０】 図５の実施例図面では、管路５は丸ダクトで表示してあるが、リング状に形成 された全圧測定管円形部１４が丸ダクトの断面と同心円的位置に配置されて固定 されている。In the embodiment drawing of FIG. 5, the conduit 5 is indicated by a round duct, but a ring-shaped total pressure measuring pipe circular portion 14 is arranged at a position concentric with the cross section of the round duct. Fixed.
【００１１】 管路５が角ダクトの場合には、リング状に形成された全圧測定管のリング状の 中心が角ダクトの中心に一致するように配置されて固定される。When the pipe 5 is a square duct, the ring-shaped center of the ring-shaped total pressure measuring pipe is arranged and fixed so as to coincide with the center of the square duct.
【００１２】 気体流方向Ｃに対する複数の全圧測定孔１１、１１・・１１からの圧力を全圧 検出口１２に連結されるマノメーター（図示せず）にて測定し、その全圧をＰｔ とし、静圧測定口からの圧力を静圧検出口に連結されるマノメーター（図示せず ）にて測定し、その静圧をＰとし、その差圧ΔＰは下式によって求められる。下 式中ｕは流速度、ρは流体の比重を表している。 The pressure from the plurality of total pressure measurement holes 11, 11,... 11 in the gas flow direction C is measured by a manometer (not shown) connected to the total pressure detection port 12, and the total pressure is determined as P t. The pressure from the static pressure measuring port is measured by a manometer (not shown) connected to the static pressure detecting port, and the static pressure is P, and the differential pressure ΔP is obtained by the following equation. In the following equation, u represents the flow velocity, and ρ represents the specific gravity of the fluid.
【００１３】[0013]
風速分布のある管路内の平均流量を測定するために、従来公知の複数のピトー 管を用いて測定した平均数値と、本考案管路内平均風速測定装置を用いて測定し た数値は同等の平均風速値を得ることができた。 In order to measure the average flow rate in a pipeline with wind speed distribution, the average value measured using a plurality of pitot tubes known in the past and the value measured using the average wind speed measurement device in the pipeline of the present invention are the same. Average wind speed was obtained.
【００１４】[0014]
風速分布を持つ気体の平均風速を測定する場合には、本考案管路内平均風速測 定装置によれば、従来のような高価な標準的なピトー管を複数個用いて管路内平 均風速を測定することなく、極めて簡単な構造で同等の管路内平均風速を測定す ることができる。 When measuring the average wind speed of a gas having a wind speed distribution, according to the pipeline mean wind speed measuring device of the present invention, the average in-pipe average is measured by using a plurality of expensive standard pitot tubes as in the past. Without measuring the wind speed, it is possible to measure the equivalent mean wind speed in the pipeline with a very simple structure.
【図１】本発明の管路内平均流量測定装置の正面図であ
る。FIG. 1 is a front view of an in-pipe average flow rate measuring device of the present invention.
【図２】本発明の管路内平均流量測定装置の側面図であ
る。FIG. 2 is a side view of the in-pipe average flow rate measuring device of the present invention.
【図３】図１のＡ−Ａ線断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図３】図１のＢ−Ｂ線の部分断面図である。FIG. 3 is a partial sectional view taken along line BB of FIG. 1;
１． 全圧測定管 １１．全圧測定孔 １２．全圧検出口 １３．全圧測定管直立部 １４．全圧測定管円形部 １５．鑞付部 ２． 静圧測定管 ２１．静圧測定孔 ２２．静圧検出口 ２３．静圧測定管直立部 ２４．静圧測定管平行部 ３． 角ダクト用取付板 ３１．丸ダクト用取付板 ３２．鑞付部 ４． 鑞付部 ５． 管路 Ｃ． 気体流方向 1. 10. Total pressure measuring tube Total pressure measurement hole 12. 12. Total pressure detection port 13. Total pressure measurement pipe upright section 14. Round part of total pressure measuring tube Brazing part 2. Static pressure measuring tube 21. Static pressure measurement hole 22. Static pressure detection port 23. Upright section of static pressure measurement pipe 24. 2. Static pressure measuring tube parallel part Mounting plate for square duct 31. Mounting plate for round duct 32. Brazing part 4. Brazing part 5. Pipe C. Gas flow direction
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年４月３日（２００１．４．３）[Submission date] April 3, 2001 (2001.4.3)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Correction target item name] Brief description of drawings
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図面の簡単な説明】[Brief description of the drawings]
【図１】本考案の管路内平均流量測定装置の正面図であ
る。FIG. 1 is a front view of an apparatus for measuring an average flow rate in a pipe according to the present invention.
【図２】本考案の管路内平均流量測定装置の側面図であ
る。FIG. 2 is a side view of the in-pipe average flow rate measuring device of the present invention.
【図３】図１のＡ−Ａ線断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図４】図２のＢ−Ｂ線の部分断面図である。FIG. 4 is a partial sectional view taken along line BB of FIG. 2;
【図５】本考案の管路内平均風速測定装置を管路に取り
付けた斜視図である。FIG. 5 is a perspective view in which the in-pipe average wind velocity measuring device of the present invention is attached to the pipe.
【符号の説明】 １．全圧測定管 １１．全圧測定孔 １２．全圧検出口 １３．全圧測定管直立部 １４．全圧測定管円形部 １５．鑞付部 ２．静圧測定管 ２１．静圧測定孔 ２２．静圧検出口 ２３．静圧測定管直立部 ２４．静圧測定管平行部 ３．角ダクト用取付板 ３１．丸ダクト用取付板 ３２．鑞付部 ４．鑞付部 ５．管路 Ｃ．気体流方向[Explanation of Codes] 10. Total pressure measuring tube Total pressure measurement hole 12. 12. Total pressure detection port 13. Total pressure measurement pipe upright section 14. Round part of total pressure measuring tube Brazing part 2. Static pressure measuring tube 21. Static pressure measurement hole 22. Static pressure detection port 23. Upright section of static pressure measurement pipe 24. 2. Static pressure measuring tube parallel part Mounting plate for square duct 31. Mounting plate for round duct 32. Brazing part 4. Brazing part 5. Pipe C. Gas flow direction
Claims (4)
端部が管路に対して平行位置になるように形成された静
圧測定管平行部が、円形断面の金属管からなりリング状
に形成された全圧測定管の中央部に挿通される位置に固
定されており、リング状に形成された全圧測定管が管路
に対して直角位置に固定されるように構成したことを特
徴とする管路内平均風速測定装置。1. A static pressure measuring tube parallel part formed of a metal tube having a circular cross section and a tip portion of the static pressure measuring tube formed of a metal tube having a circular cross section is formed in a parallel position with respect to the pipeline. Is configured to be fixed at a position where it is inserted into the center of the total pressure measuring tube formed in a ring shape, and that the total pressure measuring tube formed in a ring shape is fixed at a position perpendicular to the pipeline. An average wind speed measuring device in a pipeline characterized by the following.
定管平行部との角度が９０度に固定され、リング状に形
成された全圧測定管の気体流方向に対する面に複数の全
圧測定孔を等間隔で設け、静圧測定管先端部が閉塞され
ており、静圧測定管平行部の周囲に複数の静圧測定孔を
設けたことを特徴とする請求項１記載の管路内平均風速
測定装置。2. An angle between the ring-shaped total pressure measuring tube and the parallel portion of the static pressure measuring tube is fixed to 90 degrees, and a plurality of rings are formed on a surface of the ring-shaped total pressure measuring tube with respect to the gas flow direction. 2. The static pressure measuring tube according to claim 1, wherein the total pressure measuring holes are provided at equal intervals, the tip of the static pressure measuring tube is closed, and a plurality of static pressure measuring holes are provided around the parallel portion of the static pressure measuring tube. The average wind speed measuring device in the pipeline.
圧測定管直立部と静圧測定管直立部とが鑞付されて固定
され、更に角ダクト取付板又は丸ダクト取付板に鑞付さ
れて固定されていることを特徴とする請求項１記載の管
路内平均風速測定装置。3. The total pressure measuring pipe has a front end sealed, the vertical section of the total pressure measuring pipe and the vertical section of the static pressure measuring pipe are brazed and fixed, and further a square duct mounting plate or a round duct mounting. 2. The apparatus according to claim 1, wherein the apparatus is brazed and fixed to a plate.
トの断面と同心円位置に配置されて固定され、又は角ダ
クトにはリング状に形成された全圧測定管のリング状の
中心が角ダクトの中心に一致するように配置されて固定
されるように構成したことを特徴とする請求項１記載の
管路内平均風速測定装置。4. A ring-shaped total pressure measuring pipe is arranged and fixed at a position concentric with the cross section of the round duct, or a square duct is provided with a ring-shaped center of the ring-shaped total pressure measuring pipe. 2. The average wind velocity measuring device in a pipeline according to claim 1, wherein the device is arranged and fixed so as to coincide with the center of the square duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001000867U JP3083598U (en) | 2001-01-18 | 2001-01-18 | Average wind speed measuring device in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001000867U JP3083598U (en) | 2001-01-18 | 2001-01-18 | Average wind speed measuring device in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3083598U true JP3083598U (en) | 2002-02-08 |
Family
ID=43235105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001000867U Expired - Fee Related JP3083598U (en) | 2001-01-18 | 2001-01-18 | Average wind speed measuring device in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3083598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782017A (en) * | 2019-02-21 | 2019-05-21 | 山东公信安全科技有限公司 | Air flow system is surveyed in mine air duct |
-
2001
- 2001-01-18 JP JP2001000867U patent/JP3083598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782017A (en) * | 2019-02-21 | 2019-05-21 | 山东公信安全科技有限公司 | Air flow system is surveyed in mine air duct |
| CN109782017B (en) * | 2019-02-21 | 2024-03-29 | 中检集团公信安全科技有限公司 | Wind speed measuring device for mine air duct |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1646885A (en) | Averaging orifice primary flow element | |
| JP5107209B2 (en) | Air flow meter and wind speed sensor | |
| JP3083598U (en) | Average wind speed measuring device in pipeline | |
| JP2006162417A (en) | Total pressure/static pressure measuring venturi system flow measuring device | |
| CN210834953U (en) | Pitot tube sensor for variable air volume valve | |
| CN111044203A (en) | Rotating mechanism for bidirectional dynamic pressure measurement sensor | |
| JP3615371B2 (en) | Airflow measuring device | |
| WO2023236513A1 (en) | Processing method for flue gas and air duct measurement section, and flue gas and air duct measurement section | |
| CN207300336U (en) | A kind of people's air defense apparatus for measuring air quantity | |
| CN205785357U (en) | A kind of matrix form area flowmeter | |
| CN108489559A (en) | A kind of apparatus for measuring air quantity | |
| CN109443458A (en) | A kind of concave arc shape double fluid is to mean velocity tube flowmeter | |
| JP3322550B2 (en) | Flow measurement device using duct reinforcement | |
| CN201795815U (en) | Anti-blocking type low-speed pipe flow meter | |
| CN209432248U (en) | A kind of plumbing installation for air quantity verification | |
| CN209978975U (en) | Air quantity measuring sensor for vertical downward flow direction | |
| CN211401315U (en) | Differential pressure flow sensor for backrest pipe | |
| JPH09101186A (en) | Pitot-tube type mass flowmeter | |
| CN209486128U (en) | A kind of novel Pitot tube | |
| CN207248254U (en) | A kind of apparatus for measuring air quantity | |
| CN206161323U (en) | Engine inlet flow measuring device | |
| CN205785289U (en) | A kind of temperature and pressure flow measuring apparatus | |
| CN110045143A (en) | Primary air velocity abrasion resistant type measuring device | |
| CN210037863U (en) | Compound type flue gas flow velocity measuring device | |
| KR101957214B1 (en) | Pitot tube for improving Pitot coefficient and stability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |