JP2014157016A - Gas meter - Google Patents

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Publication number
JP2014157016A
JP2014157016A JP2011129899A JP2011129899A JP2014157016A JP 2014157016 A JP2014157016 A JP 2014157016A JP 2011129899 A JP2011129899 A JP 2011129899A JP 2011129899 A JP2011129899 A JP 2011129899A JP 2014157016 A JP2014157016 A JP 2014157016A
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Japan
Prior art keywords
flow rate
flow
gas meter
partition plate
rate measuring
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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.)
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JP2011129899A
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Japanese (ja)
Inventor
Masato Sato
真人 佐藤
Yasushi Fujii
裕史 藤井
Yukinori Ozaki
行則 尾崎
Akihisa Adachi
明久 足立
Yuji Nakabayashi
裕治 中林
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Panasonic Corp
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Panasonic Corp
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Priority to JP2011129899A priority Critical patent/JP2014157016A/en
Priority to PCT/JP2012/003743 priority patent/WO2012169201A1/en
Publication of JP2014157016A publication Critical patent/JP2014157016A/en
Withdrawn legal-status Critical Current

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    • 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
    • G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a gas meter capable of preventing dust from entering into a flow rate measuring part.SOLUTION: In a casing 2 of a gas meter 1, an inlet 11 of a flow rate measuring part 10 is opened within the casing 2 and an outlet 12 of the flow rate measuring part 10 is connected to a flow-out part 4, and a partition plate 14 is disposed at a position so that the flow from a flow-in portion 3 to the inlet 11 flows round about the same. With this, the flow rate is reduced in a wide space in the casing 2 of the gas meter 1 to allow the dust to fall down, and before the dust enters the flow rate measuring part 10, the flow is made to go around the partition plate 14 to further allow the dust to fall down. Thus, by the combination of the above effects, entrance of the dust into the flow rate measuring part 10 is prevented.

Description

本発明は、流量計測部への塵挨流入を防止するガスメータに関するものである。   The present invention relates to a gas meter for preventing dust from flowing into a flow rate measuring unit.

従来、この種のガスメータは、流量計測部の上流側に異物除去用のフィルタを設けている（例えば、特許文献１参照）。   Conventionally, this type of gas meter is provided with a filter for removing foreign substances on the upstream side of the flow rate measuring unit (see, for example, Patent Document 1).

図４は、特許文献１に記載された従来のガスメータを示すものである。   FIG. 4 shows a conventional gas meter described in Patent Document 1. As shown in FIG.

図４に示すように、ガスメータ１０１は、流入口１０２と、流出口１０３と、を有しており、ガスメータ１０１の内部では、フィルタ１０４と、遮断弁１０５と、下向き流路１０６と、流量計測部が配設された水平流路１０７と、上向き流路１０８とが連続して接続されており、これらが流入口１０２と流出口１０３との間に配置された構成となっている。   As shown in FIG. 4, the gas meter 101 has an inlet 102 and an outlet 103, and inside the gas meter 101, a filter 104, a shut-off valve 105, a downward channel 106, and a flow rate measurement. The horizontal flow path 107 in which the portion is disposed and the upward flow path 108 are continuously connected, and these are arranged between the inflow port 102 and the outflow port 103.

特開２００４−１０１３０３号公報JP 2004-101303 A

しかしながら、前記従来の構成では、流入口１０２より流入した異物は、流入口１０２直後のフィルタ１０４に堆積するため、長期間の後には圧力損失となり、ガスメータ１０１に所定の流量を流すことができなくなるという課題を有していた。   However, in the conventional configuration, the foreign matter that flows in from the inlet 102 accumulates on the filter 104 immediately after the inlet 102, and thus becomes a pressure loss after a long period of time, so that a predetermined flow rate cannot flow through the gas meter 101. It had the problem that.

本発明は、前記従来の課題を解決するもので、フィルタを用いることなく流量計測部への塵挨の流入を防止するようにしたガスメータを提供するものである。   This invention solves the said conventional subject, and provides the gas meter which prevented the inflow of the dust to a flow volume measurement part, without using a filter.

前記従来の課題を解決するために、本発明のガスメータは、筺体と、前記筺体に設けられた流入部、および流出部と、前記筺体内に配置され、入口部と出口部とを有する流量計測部と、前記筺体内部に配置した仕切板とよりなり、前記流量計測部は入口部を前記筺体内に開口するとともに前記流量計測部の出口部を前記流出部に接続し、前記仕切板は前記流入部から前記入口部への流れを迂回させる位置に配置したものである。   In order to solve the conventional problems, a gas meter of the present invention includes a housing, an inflow portion and an outflow portion provided in the housing, and a flow rate measurement that is disposed in the housing and has an inlet portion and an outlet portion. And a partition plate disposed inside the housing, wherein the flow rate measuring unit opens an inlet portion in the housing and connects an outlet portion of the flow rate measuring unit to the outflow portion, It arrange | positions in the position which diverts the flow from an inflow part to the said inlet part.

これによって、流入部より流入したガスの流れを、いったんガスメータの筺体内の広い空間に開放して流速を遅くして塵挨の落下を容易にするとともに、さらに流量計測部に入る前に仕切板により流れを迂回させ、その間に塵挨の落下頻度を増加し、これらの総合効果により流量計測部への塵挨流入を防止するようにしたものである。   As a result, the flow of the gas flowing in from the inflow part is once opened to a wide space in the gas meter housing to slow down the flow rate, thereby facilitating the falling of dust, and further before entering the flow measurement part, the partition plate By detouring the flow, the frequency of falling dust is increased in the meantime, and dust inflow to the flow rate measuring unit is prevented by these comprehensive effects.

本発明のガスメータは、流速の低下と仕切板による流れの迂回により流量計測部への塵挨流入を防止することができる。   The gas meter of the present invention can prevent the inflow of dust into the flow rate measuring unit by lowering the flow velocity and bypassing the flow by the partition plate.

本発明の実施の形態１におけるガスメータの垂直断面図Vertical sectional view of a gas meter in Embodiment 1 of the present invention 本発明の実施の形態２におけるガスメータの垂直断面図Vertical sectional view of a gas meter in Embodiment 2 of the present invention 本発明の実施の形態３におけるガスメータの垂直断面図Vertical sectional view of a gas meter in Embodiment 3 of the present invention 従来のガスメータの垂直断面図Vertical section of a conventional gas meter

第１の発明は、筺体と、前記筺体に設けられた流入部、および流出部と、前記筺体内に配置され、入口部と出口部とを有する流量計測部と、前記筺体内部に配置した仕切板とよりなり、前記流量計測部は入口部を前記筺体内に開口するとともに、前記流量計測部の出口部を前記流出部に接続し、前記仕切板は前記流入部から前記入口部への流れを迂回させる位置に配置することにより、流入部より流入したガスの流れを、いったんガスメータの筺体内の広い空間に開放して流速を遅くして塵挨の落下を容易にするとともに、さらに流量計測部に入る前に仕切板により流れを迂回させ、その間に塵挨の落下頻度を増加し、これらの総合効果により流量計測部への塵挨流入を防止するようにしたものである。   The first invention includes a housing, an inflow portion and an outflow portion provided in the housing, a flow rate measuring portion disposed in the housing and having an inlet portion and an outlet portion, and a partition disposed in the housing. The flow rate measuring unit opens an inlet portion into the housing, connects an outlet portion of the flow rate measuring unit to the outflow portion, and the partition plate flows from the inflow portion to the inlet portion. By disposing the gas at a position where it is bypassed, the flow of the gas flowing in from the inflow section is once opened to a wide space in the gas meter housing to slow down the flow rate, facilitating the falling of dust, and further measuring the flow rate. Before entering the part, the flow is diverted by the partition plate, and the frequency of falling dust is increased during that time, and the dust inflow to the flow rate measuring part is prevented by these comprehensive effects.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、本実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

（実施の形態１）
実施の形態１について、図１を参照しながら説明する。図１は、本発明の第１の実施の形態におけるガスメータの垂直断面図を示すものである。 (Embodiment 1)
The first embodiment will be described with reference to FIG. FIG. 1 is a vertical sectional view of a gas meter according to a first embodiment of the present invention.

図１において１はガスメータである。ガスメータ１の筺体２は、流入部３と流出部４を有している。流入部３には流入パイプ５、流出部４には流出パイプ６が接続されている。   In FIG. 1, 1 is a gas meter. The housing 2 of the gas meter 1 has an inflow portion 3 and an outflow portion 4. An inflow pipe 5 is connected to the inflow portion 3, and an outflow pipe 6 is connected to the outflow portion 4.

筺体２の内部において、流入部３には遮断弁７が接続されている。この遮断弁７の入口端８は流入部３に接続され、出口端９は筺体２の内部に開放されている。   A shut-off valve 7 is connected to the inflow portion 3 inside the housing 2. An inlet end 8 of the shut-off valve 7 is connected to the inflow portion 3, and an outlet end 9 is opened inside the housing 2.

また、筺体２の内部には、流量計測部１０が、配置されている。流量計測部１０は入口部１１と出口部１２を有しており、入口部１１は筺体２の内部に開放されており、出口部１２は接続部１３により流出部４に接続されている。   In addition, a flow rate measuring unit 10 is disposed inside the housing 2. The flow rate measuring unit 10 has an inlet part 11 and an outlet part 12, the inlet part 11 is opened inside the housing 2, and the outlet part 12 is connected to the outflow part 4 by a connection part 13.

流量計測部１０としては、例えば超音波で流量を計測する方式のものや、フローセンサで流量を計測するものがある。また、超音波で計測するもので、その流路内部を板で複数に分割するものも含まれる。   Examples of the flow rate measuring unit 10 include a type that measures the flow rate with ultrasonic waves and a type that measures the flow rate with a flow sensor. Moreover, what measures by an ultrasonic wave and divides the inside of the flow path into a plurality with a board is also included.

筺体２の内部には仕切板１４が配置されている。仕切板１４は、遮断弁７の出口端９から筺体２の内部に流出するガスが、直接、流量計測部１０の入口部１１に流入しないように配置されている。   A partition plate 14 is disposed inside the housing 2. The partition plate 14 is arranged so that the gas flowing out from the outlet end 9 of the shut-off valve 7 into the housing 2 does not flow directly into the inlet portion 11 of the flow rate measuring unit 10.

本実施の形態の場合、仕切板１４は筺体２の左側面１５に取り付けられ、水平方向に筺体２の奥行き方向一杯の幅で流量計測部１０の出口部１２の近傍までの長さで配置されている。   In the case of the present embodiment, the partition plate 14 is attached to the left side surface 15 of the housing 2, and is arranged in the horizontal direction with a full width in the depth direction to the vicinity of the outlet portion 12 of the flow rate measuring unit 10. ing.

すなわち、仕切板１４は、流入部３から流量計測部１０の入口部１１への流れを迂回させる位置に配置されている。   That is, the partition plate 14 is disposed at a position that bypasses the flow from the inflow portion 3 to the inlet portion 11 of the flow rate measuring unit 10.

以上のように構成されたガスメータについて、以下、その動作、作用を説明する。
まず、流入パイプ５より流入したガスは、流入部３から遮断弁７の入口端８より入り、その後、出口端９より筺体２の内部空間に放出される。この内部空間は面積が流入部３より十分広いため、ガスの流速は遅くなりガスに含まれている塵挨はここでその一部が落下する。 About the gas meter comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
First, the gas flowing in from the inflow pipe 5 enters from the inlet 3 through the inlet end 8 of the shut-off valve 7, and then is discharged from the outlet end 9 into the internal space of the housing 2. Since this internal space has a sufficiently larger area than the inflow portion 3, the flow rate of the gas becomes slow, and a part of the dust contained in the gas falls here.

筺体２の内部には、このガスの流れが流量計測部１０の入口部１１に直接入らないよう、仕切板１４が設けられている。この実施例の場合、流れは矢印Ｐ１、Ｐ２、Ｐ３の経路をたどり、その後、流量計測部１０の入口部１１より流量計測部１０に入り、流量計測が行われる。   A partition plate 14 is provided inside the housing 2 so that the gas flow does not directly enter the inlet 11 of the flow rate measuring unit 10. In this embodiment, the flow follows the paths indicated by arrows P1, P2, and P3, and then enters the flow rate measurement unit 10 from the inlet 11 of the flow rate measurement unit 10 to perform flow rate measurement.

この様に、ガスの流れる経路が仕切板１４により迂回され、塵埃の通過距離が長くなるため、その間に塵挨の落下頻度を増加することができる。
以上のように、本実施の形態においては、流入部より流入したガスの流れを、いったんガスメータの筺体２内の広い空間に開放し、流速を遅くして塵挨の落下を容易にするとともに、さらに流量計測部１０に入る前に仕切板１４により流れを迂回させ、その間に塵挨の落下頻度を増加させるため、これらの総合効果により流量計測部への塵挨流入を防止することができる。 In this way, the path through which the gas flows is detoured by the partition plate 14 and the dust passage distance becomes longer, so that the frequency of dust falling can be increased during that time.
As described above, in the present embodiment, the flow of the gas flowing in from the inflow portion is once opened to a wide space in the housing 2 of the gas meter, and the flow rate is decreased to facilitate the falling of dust. Furthermore, since the flow is diverted by the partition plate 14 before entering the flow rate measuring unit 10 and the dust falling frequency is increased during that time, the inflow of dust into the flow rate measuring unit can be prevented by these comprehensive effects.

（実施の形態２）
実施の形態２について、図２を用いて説明する。図２は、本発明の第２の実施の形態におけるガスメータの垂直断面図を示すものである。 (Embodiment 2)
Embodiment 2 will be described with reference to FIG. FIG. 2 is a vertical sectional view of a gas meter according to the second embodiment of the present invention.

実施の形態２において、実施の形態１と異なるところは、図２において、仕切板として、第１の仕切板１６、第２の仕切板１７が図２に示すように配置されている点のみである。その他の部分は実施の形態１と同じゆえ、同じ番号で示している。   The second embodiment differs from the first embodiment only in that the first partition plate 16 and the second partition plate 17 are arranged as shown in FIG. 2 as the partition plates in FIG. is there. The other parts are the same as those in the first embodiment, and are therefore denoted by the same numbers.

本実施の形態の場合、流れは矢印Ｑ１，Ｑ２，Ｑ３，Ｑ４の経路をたどり、その後、流量計測部１０の入口部１１より流量計測部１０に入り、流量計測が行われる。   In the case of the present embodiment, the flow follows the paths indicated by arrows Q1, Q2, Q3, and Q4, and then enters the flow rate measurement unit 10 from the inlet 11 of the flow rate measurement unit 10 to perform flow rate measurement.

以上のように、本実施の形態においては、第１の仕切板１６、および第２の仕切板１７により、迂回経路をより長くすることで、流量計測部１０への塵埃流入をより効果的に防止することができる。   As described above, in the present embodiment, the first partition plate 16 and the second partition plate 17 make the detour path longer, so that the dust inflow to the flow rate measurement unit 10 can be more effectively performed. Can be prevented.

（実施の形態３）
実施の形態３について、図３を用いて説明する。図３は、本発明の第３の実施の形態におけるガスメータの垂直断面図を示すものである。 (Embodiment 3)
A third embodiment will be described with reference to FIG. FIG. 3 is a vertical sectional view of a gas meter according to the third embodiment of the present invention.

実施の形態３において、実施の形態１と異なるところは、図３において、仕切板として、変形仕切板１８が図３に示すように配置されている点のみである。その他の部分は実施の形態１と同じゆえ、同じ番号で示している。   The third embodiment is different from the first embodiment only in that the modified partition plate 18 is arranged as shown in FIG. 3 as the partition plate in FIG. The other parts are the same as those in the first embodiment, and are therefore denoted by the same numbers.

本実施の形態の場合、流れは矢印Ｒ１，Ｒ２の経路をたどり、その後、流量計測部１０の入口部１１より流量計測部１０に入り、流量計測が行われる。   In the case of the present embodiment, the flow follows the path indicated by the arrows R1 and R2, and then enters the flow rate measurement unit 10 from the inlet 11 of the flow rate measurement unit 10 to perform flow rate measurement.

以上のように、本実施の形態においては、変形仕切板１８のようなコンパクトな形状の仕切板にて迂回経路を形成し、流量計測部１０への塵埃流入を防止することができる。   As described above, in the present embodiment, the detour path is formed by a compact partition plate such as the deformable partition plate 18, and dust can be prevented from flowing into the flow rate measuring unit 10.

なお、本実施例で遮断弁を構成要素に加えたが、遮断弁がなくても同様の効果が発揮されるものである。   In addition, although the shut-off valve was added to the component in the present Example, the same effect is exhibited even if there is no shut-off valve.

以上のように、本発明にかかるガスメータは、流量計測部への塵挨流入を防止することが可能となるので、家庭用から業務用に至る大型のガスメータまで幅広い用途に適用できる。   As described above, the gas meter according to the present invention can prevent the inflow of dust into the flow rate measurement unit, and thus can be applied to a wide range of applications from a large gas meter for home use to business use.

１ ガスメータ
２ 筺体
３ 流入部
４ 流出部
１０ 流量計測部
１１ 入口部
１２ 出口部
１４ 仕切板
１６ 第１の仕切板（仕切板）
１７ 第２の仕切板（仕切板）
１８ 変形仕切板（仕切板） DESCRIPTION OF SYMBOLS 1 Gas meter 2 Housing | casing 3 Inflow part 4 Outflow part 10 Flow measurement part 11 Inlet part 12 Outlet part 14 Partition plate 16 1st partition plate (partition plate)
17 Second partition plate (partition plate)
18 Modified partition plate (partition plate)

Claims (1)

筺体と、前記筺体に設けられた流入部、および流出部と、前記筺体内に配置され、入口部と出口部とを有する流量計測部と、前記筺体内部に配置した仕切板とよりなり、前記流量計測部は入口部を前記筺体内に開口するとともに前記流量計測部の出口部を前記流出部に接続し、前記仕切板は前記流入部から前記入口部への流れを迂回させる位置に配置したガスメータ。   A housing, an inflow portion provided in the housing, and an outflow portion; a flow rate measuring portion disposed in the housing and having an inlet portion and an outlet portion; and a partition plate disposed inside the housing, The flow rate measuring unit opens the inlet portion into the housing and connects the outlet portion of the flow rate measuring unit to the outflow portion, and the partition plate is disposed at a position to bypass the flow from the inflow portion to the inlet portion. Gas meter.
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PCT/JP2012/003743 WO2012169201A1 (en) 2011-06-10 2012-06-07 Gas meter

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10514286B2 (en) 2014-02-07 2019-12-24 Panasonic Intellectual Property Management Co., Ltd. Gas flowmeter
JP2021117018A (en) * 2020-01-22 2021-08-10 関西ガスメータ株式会社 Ultrasonic flowmeter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015148530A (en) * 2014-02-07 2015-08-20 パナソニックＩｐマネジメント株式会社 Gas flowmeter
JP6263738B2 (en) 2014-02-07 2018-01-24 パナソニックＩｐマネジメント株式会社 Gas flow meter
IT201800006409A1 (en) * 2018-06-18 2019-12-18 GAS METER

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406163A (en) * 1982-01-18 1983-09-27 Lofink Joseph P Positive displacement volumetric compressible fluid meter
GB9021441D0 (en) * 1990-10-02 1990-11-14 British Gas Plc Measurement system
JP3494771B2 (en) * 1995-08-14 2004-02-09 東京瓦斯株式会社 Pressure fluctuation absorber in fluidic flow meter
FR2755232B1 (en) * 1996-10-28 1998-12-04 Schlumberger Ind Sa IMPROVED DUSTING RESISTANCE GAS METER
JP2005221316A (en) * 2004-02-04 2005-08-18 Osaka Gas Co Ltd Channel structure of diaphragm gas meter
JP2011112378A (en) * 2009-11-24 2011-06-09 Panasonic Corp Flow channel member and ultrasonic fluid measurement device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10514286B2 (en) 2014-02-07 2019-12-24 Panasonic Intellectual Property Management Co., Ltd. Gas flowmeter
JP2021117018A (en) * 2020-01-22 2021-08-10 関西ガスメータ株式会社 Ultrasonic flowmeter
JP7312121B2 (en) 2020-01-22 2023-07-20 関西ガスメータ株式会社 ultrasonic flow meter

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