JP5996304B2 - Liquid flow meter - Google Patents

Liquid flow meter Download PDF

Info

Publication number
JP5996304B2
JP5996304B2 JP2012148944A JP2012148944A JP5996304B2 JP 5996304 B2 JP5996304 B2 JP 5996304B2 JP 2012148944 A JP2012148944 A JP 2012148944A JP 2012148944 A JP2012148944 A JP 2012148944A JP 5996304 B2 JP5996304 B2 JP 5996304B2
Authority
JP
Japan
Prior art keywords
upstream chamber
plate
float
liquid
flow rate
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.)
Active
Application number
JP2012148944A
Other languages
Japanese (ja)
Other versions
JP2014010123A (en
Inventor
湯本　秀昭
秀昭 湯本
嘉晃 西川
嘉晃 西川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tlv Co Ltd
Original Assignee
Tlv Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tlv Co Ltd filed Critical Tlv Co Ltd
Priority to JP2012148944A priority Critical patent/JP5996304B2/en
Publication of JP2014010123A publication Critical patent/JP2014010123A/en
Application granted granted Critical
Publication of JP5996304B2 publication Critical patent/JP5996304B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Level Indicators Using A Float (AREA)
  • Measuring Volume Flow (AREA)

Description

本発明は、水、油、薬液等の液体の流量を測定する液体用流量計に関し、特に、セキ孔の上流の液位とセキ孔の通過量との関係から液体の流量を測定する液体用流量計に関する。 The present invention relates to a flow meter for liquid that measures the flow rate of liquid such as water, oil, and chemical liquid, and in particular, for a liquid that measures the flow rate of a liquid from the relationship between the liquid level upstream of the throat hole and the passage amount of the throat hole. It relates to a flow meter.

従来の液体用流量計は、例えば特許文献１に開示されている。これは、入口と上流室と下流室と出口を有するケーシングと、上流室と下流室を仕切るセキ板と、セキ板に開けられたセキ孔と、上流室に配されたフロートと、上流室の液位を検出する液位検出器と、上流室の液位とセキ孔の通過量との関係から液体の流量を算出する流量算出器とを具備するものである。 A conventional liquid flow meter is disclosed in Patent Document 1, for example. This includes a casing having an inlet, an upstream chamber, a downstream chamber, and an outlet, a sheet plate separating the upstream chamber and the downstream chamber, a hole formed in the sheet plate, a float disposed in the upstream chamber, and an upstream chamber A liquid level detector for detecting the liquid level, and a flow rate calculator for calculating the flow rate of the liquid from the relationship between the liquid level in the upstream chamber and the passage amount of the cough hole are provided.

特開昭６１−４５９２４号公報JP 61-45924

上記従来の液体用流量計は、ケーシングが上流室と下流室を有し、上流室と下流室をセキ板で仕切るものであるので、ケーシングが大型となる問題点があった。 The conventional liquid flow meter has a problem that the casing has a large size because the casing has an upstream chamber and a downstream chamber, and the upstream chamber and the downstream chamber are separated by a sealing plate.

したがって本発明が解決しようとする課題は、小型のケーシングで流量を測定できる液体用流量計を提供することである。 Therefore, the problem to be solved by the present invention is to provide a liquid flow meter capable of measuring a flow rate with a small casing.

上記の課題を解決するために、本発明の液体用流量計は、入口と上流室と出口を有するケーシングと、上流室と出口を仕切るセキ板と、セキ板に開けられたセキ孔と、上流室に配されたフロートと、上流室の液位を検出する液位検出器と、上流室の液位とセキ孔の通過量との関係から液体の流量を算出する流量算出器とを具備するものである。 In order to solve the above-described problems, a liquid flowmeter of the present invention includes a casing having an inlet, an upstream chamber, and an outlet, a separator plate that partitions the upstream chamber and the outlet, a separator hole opened in the separator plate, and an upstream A float arranged in the chamber, a liquid level detector for detecting the liquid level in the upstream chamber, and a flow rate calculator for calculating the flow rate of the liquid from the relationship between the liquid level in the upstream chamber and the passage amount of the cough hole. Is.

本発明によれば、ケーシングが上流室を有し、上流室と出口をセキ板で仕切るものであるので、小型のケーシングで流量を測定できるという優れた効果を奏する。 According to the present invention, since the casing has the upstream chamber and the upstream chamber and the outlet are partitioned by the baffle plate, there is an excellent effect that the flow rate can be measured with a small casing.

本発明の実施の形態に係わる液体用流量計の断面図である。It is sectional drawing of the flowmeter for liquid concerning embodiment of this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG.

以下、本発明の実施の形態について、図１乃至図２を参照して説明する。ケーシング１は入口２とほぼ円柱状の空間から成る上流室３と出口４を有し、図示しない入口側配管フランジと出口側配管フランジの間に配されボルトとナットから成る締結手段によって挟持される。入口２と上流室３を円板状の整流板５により仕切る。整流板５には複数の小孔から成る整流孔が開けられている。整流孔により入口２と上流室３を連通する。上流室３と出口４を円板状のセキ板６により仕切る。セキ板６にはセキ孔７とセキ孔７の上端から連通する通孔８が開けられている。セキ孔７と通孔８により上流室３と出口４を連通する。セキ孔７の上流の上流室３に中空球形のフロート９を配置する。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. The casing 1 has an inlet 2 and an upstream chamber 3 formed of a substantially cylindrical space, and an outlet 4. The casing 1 is disposed between an inlet side piping flange and an outlet side piping flange (not shown) and is sandwiched by fastening means including bolts and nuts. . The inlet 2 and the upstream chamber 3 are partitioned by a disc-shaped rectifying plate 5. The rectifying plate 5 has a rectifying hole made up of a plurality of small holes. The inlet 2 and the upstream chamber 3 are communicated with each other through the rectifying hole. The upstream chamber 3 and the outlet 4 are partitioned by a disk-shaped squeeze plate 6. The texture plate 6 is provided with a texture hole 7 and a through hole 8 communicating from the upper end of the texture hole 7. The upstream chamber 3 and the outlet 4 are communicated with each other by the cough hole 7 and the through hole 8. A hollow sphere-shaped float 9 is disposed in the upstream chamber 3 upstream of the cough 7.

ケーシング１にねじ結合によりケース１０を固定する。ケース１０の内端二又部分１０ａに中心軸１１により回転板１２を回転自在に取付ける。回転板１２にフロートアーム１３の一端を圧入により固定し、フロートアーム１３の他端をフロート９に溶接により固定する。フロートアーム１３はフロート９の浮上降下により回転して回転板１２を回転せしめる。回転板１２に可動軸１５の一端二又部分１５ａを連結軸１４により連結する。可動軸１５は回転板１２の回転に伴ってケース１０の軸心方向に変位する。可動軸１５の他端に永久磁石１６を内蔵する。ケース１０の隔壁１０ｂにより永久磁石１６とは隔てて永久磁石１６の変位に応じた永久磁石１６との距離変化に基づき上流室３の液位を検出する磁気センサ１７をケース１０に取付ける。回転板１２とフロートアーム１３と可動軸１５と永久磁石１６と磁気センサ１７とから液位検出器を構成し、磁気センサ１７を流量算出器１８に接続する。流量算出器１８は上流室３の液位とセキ孔７の通過量との関係を予め記憶しており、上流室３の液位から液体の流量を算出する。 The case 10 is fixed to the casing 1 by screw connection. A rotating plate 12 is rotatably attached to the inner end bifurcated portion 10 a of the case 10 by a central shaft 11. One end of the float arm 13 is fixed to the rotating plate 12 by press fitting, and the other end of the float arm 13 is fixed to the float 9 by welding. The float arm 13 rotates as the float 9 moves up and down to rotate the rotating plate 12. One end bifurcated portion 15 a of the movable shaft 15 is connected to the rotating plate 12 by a connecting shaft 14. The movable shaft 15 is displaced in the axial direction of the case 10 as the rotating plate 12 rotates. A permanent magnet 16 is built in the other end of the movable shaft 15. A magnetic sensor 17 that detects the liquid level in the upstream chamber 3 based on a change in distance from the permanent magnet 16 according to the displacement of the permanent magnet 16 is attached to the case 10, separated from the permanent magnet 16 by the partition wall 10 b of the case 10. The rotating plate 12, the float arm 13, the movable shaft 15, the permanent magnet 16, and the magnetic sensor 17 constitute a liquid level detector, and the magnetic sensor 17 is connected to the flow rate calculator 18. The flow rate calculator 18 stores in advance the relationship between the liquid level in the upstream chamber 3 and the amount of passage through the cough 7, and calculates the liquid flow rate from the liquid level in the upstream chamber 3.

入口２の液体は整流孔を通して上流室３に入り、セキ孔７を通して出口４に流出する。上流室３の液位に伴ってフロート９が浮上降下し、フロート９の浮上降下によりフロートアーム１３が回転して回転板１２が中心軸１１の回りに回転する。回転板１２の回転に伴って可動軸１５がケースの軸心方向に変位して永久磁石１６の磁気センサ１７との距離が変化する。磁気センサ１７が永久磁石１６との距離変化に基づき上流室３の液位を検出し、流量算出器１８が上流室３の液位とセキ孔７の通過量との関係から液体の流量を算出する。 The liquid at the inlet 2 enters the upstream chamber 3 through the rectifying hole and flows out to the outlet 4 through the throat hole 7. The float 9 rises and falls with the liquid level in the upstream chamber 3, and the float arm 13 rotates due to the float and fall of the float 9, and the rotating plate 12 rotates around the central axis 11. As the rotating plate 12 rotates, the movable shaft 15 is displaced in the axial direction of the case, and the distance between the permanent magnet 16 and the magnetic sensor 17 changes. The magnetic sensor 17 detects the liquid level in the upstream chamber 3 based on the change in the distance from the permanent magnet 16, and the flow rate calculator 18 calculates the liquid flow rate from the relationship between the liquid level in the upstream chamber 3 and the passage amount of the throat hole 7. To do.

本発明は、水、油、薬液等の液体の流量を測定する液体用流量計に利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used for a liquid flow meter that measures the flow rate of liquids such as water, oil, and chemicals.

１ ケーシング
２ 入口
３ 上流室
４ 出口
５ 整流板
６ セキ板
７ セキ孔
８ 通孔
９ フロート
１０ ケース
１１ 中心軸
１２ 回転板
１３ フロートアーム
１４ 連結軸
１５ 可動軸
１６ 永久磁石
１７ 磁気センサ
１８ 流量算出器 DESCRIPTION OF SYMBOLS 1 Casing 2 Inlet 3 Upstream chamber 4 Outlet 5 Rectification plate 6 Clear plate 7 Clear hole 8 Through hole 9 Float 10 Case 11 Center shaft 12 Rotating plate 13 Float arm 14 Connecting shaft 15 Movable shaft 16 Permanent magnet 17 Magnetic sensor 18 Flow rate calculator

Claims (1)

入口と上流室と出口を有するケーシングと、上流室と出口を仕切るセキ板と、セキ板に開けられたセキ孔と、上流室に配されたフロートと、上流室から外部に突出して固定されたケースと、ケースの中心軸の回りに回転自在に取付けられた回転板と、一端が回転板に固定され他端がフロートに固定されフロートの浮上降下により回転して回転板を回転せしめるフロートアームと、中心軸とは別の連結軸により中心軸から離れた点において回転板に連結され回転板の回転に伴ってケースの軸心方向に変位する可動軸とを具備し、可動軸の変位に基づいて検出した上流室の液位に基づき液体の流量を算出することを特徴とする液体用流量計。 And a casing which have the inlet and upstream chamber and the outlet, and cough plate partitioning the upstream chamber and the outlet, and cough hole drilled in weir plate, and a float disposed in the upstream chamber, is fixed to protrude from the upstream chamber to the outside A case, a rotating plate that is rotatably mounted around the central axis of the case, and a float arm that is fixed to the rotating plate at one end and fixed to the float at the other end, and rotates by rotating and moving the float plate. And a movable shaft connected to the rotating plate at a point separated from the central axis by a connecting shaft different from the central axis and displaced in the axial direction of the case as the rotating plate rotates. A liquid flowmeter for calculating a flow rate of a liquid based on a liquid level of an upstream chamber detected based on the flow rate.
JP2012148944A 2012-07-02 2012-07-02 Liquid flow meter Active JP5996304B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012148944A JP5996304B2 (en) 2012-07-02 2012-07-02 Liquid flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012148944A JP5996304B2 (en) 2012-07-02 2012-07-02 Liquid flow meter

Publications (2)

Publication Number Publication Date
JP2014010123A JP2014010123A (en) 2014-01-20
JP5996304B2 true JP5996304B2 (en) 2016-09-21

Family

ID=50106933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012148944A Active JP5996304B2 (en) 2012-07-02 2012-07-02 Liquid flow meter

Country Status (1)

Country Link
JP (1) JP5996304B2 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50139760A (en) * 1974-04-24 1975-11-08
JPS5890406U (en) * 1981-12-09 1983-06-18 株式会社西原環境衛生研究所 Constant flow regulator
JPS6031621U (en) * 1983-08-09 1985-03-04 東京計装株式会社 area flow meter
JPS6054920U (en) * 1983-09-21 1985-04-17 株式会社　テイエルブイ drain flow meter
JPS60239623A (en) * 1984-05-14 1985-11-28 Ikeda Keiki Seisakusho:Kk Flow measurement of water duct and measuring apparatus thereof
BR8503704A (en) * 1984-08-09 1986-05-06 Tlv Co Ltd DEBITOMETER TO MEASURE THE DEBIT OF A LIQUID

Also Published As

Publication number Publication date
JP2014010123A (en) 2014-01-20

Similar Documents

Publication Publication Date Title
US10139257B2 (en) Multiphase meter calibration system and methods thereof
RU2491513C2 (en) Averaging diaphragm with holes located near inner wall of pipe
CA2797488C (en) Magnetic-inductive flow meter
CN102435233A (en) Vertical spiral wing type water metering device
JP5996304B2 (en) Liquid flow meter
JP5944248B2 (en) Liquid flow meter
KR101326189B1 (en) Average pitot tube type flow meter
EP3588016A3 (en) A method of measuring the flow based on the action of a reaction force and a reaction flowmeter performed according to the method thereof
CN109752058A (en) A kind of balance flow meter with protective layer
JP2014029296A (en) Drain flowmeter
CN203672417U (en) Fluid director of water metering device
CN107036664A (en) Hose flowmeter
CN102483338B (en) Single jet flowmeter with improved driving torque and sensitivity
CN104215285A (en) Electromagnetic flow meter
KR101128301B1 (en) Strainer Status Indicator
CN205561933U (en) Vortex flow meter
JP2008224644A (en) Device which does not measure back-flow of water meter
JP5188518B2 (en) Flowmeter
JP2016223989A (en) In-piping flowmeter
RU137366U1 (en) ELECTROMAGNETIC FLOW METER
CN109945941B (en) Ore pulp calibration device
CN203216553U (en) LC oval gear flow meter
KR100841480B1 (en) Gas meter
EP3198237B1 (en) A flow-rate measuring system for drilling muds and/or for multiphase mixtures
JP6554337B2 (en) Water supply equipment

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150605

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160301

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160425

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160531

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160728

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160823

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160824

R150 Certificate of patent or registration of utility model

Ref document number: 5996304

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150