JP2007248124A - Liquid quantity measuring instrument - Google Patents

Liquid quantity measuring instrument Download PDF

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JP2007248124A
JP2007248124A JP2006069252A JP2006069252A JP2007248124A JP 2007248124 A JP2007248124 A JP 2007248124A JP 2006069252 A JP2006069252 A JP 2006069252A JP 2006069252 A JP2006069252 A JP 2006069252A JP 2007248124 A JP2007248124 A JP 2007248124A
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liquid
gas
partition plate
container
flow hole
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JP4568689B2 (en
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Hideki Tanaka
秀樹 田中
Kimio Yoshizumi
公男 吉住
Hitoshi Ando
仁 安藤
Akira Mizugaki
朗 水柿
Akira Ueda
晃 上田
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Espec Corp
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Espec Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid quantity measuring instrument capable of precisely measuring the quantity of reserved liquid. <P>SOLUTION: The liquid quantity measuring instrument 1 comprises a vessel 2 where liquid is separated from gas-liquid mixed fluid in an internal space 20 and the liquid is reserved under it, and a measuring section for measuring the quantity of the liquid reserved in the vessel 2. At least two partition plates 6 and 7 for vertically partitioning the internal space 20 are disposed vertically at an interval in the internal space 20 of the vessel 2. These partition plates 6 and 7 are provided with a circulation hole for dropping the separated liquid from the gas-liquid mixed fluid. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、気液混合流体を気体と液体とに分離しながら、分離される液体の量を精密に計測可能な液量計測器に関するものである。   The present invention relates to a liquid amount measuring device capable of accurately measuring the amount of separated liquid while separating a gas-liquid mixed fluid into gas and liquid.

従来、例えば特許文献1に記載されているように、サイクロン式の気液分離器が知られている。このサイクロン式の気液分離器は、天井壁および円形筒状の周壁を有する気液分離部と、この気液分離部の下方に連設される有底容器状の液体貯留部とで構成されており、気液分離部と液体貯留部とで囲まれる内部空間を有している。前記気液分離部は、水平方向に延びる流入管から内部に気液混合流体を高速で流入させて旋回させることにより周壁の内壁面に気液混合流体中に含まれる液体を付着させて、遠心力で気体と液体とを分離するものである。そして、分離された気体は、気液分離部の天井壁を貫通して鉛直方向に延びる流出管から排出され、分離された液体は、周壁の内壁面をつたって落下して液体貯留部内に貯留されるようになっている。
特開2004−342385号公報
Conventionally, as described in Patent Document 1, for example, a cyclone type gas-liquid separator is known. This cyclone type gas-liquid separator is composed of a gas-liquid separation part having a ceiling wall and a circular cylindrical peripheral wall, and a bottomed container-like liquid storage part provided below the gas-liquid separation part. And has an internal space surrounded by the gas-liquid separation part and the liquid storage part. The gas-liquid separation unit causes the liquid contained in the gas-liquid mixed fluid to adhere to the inner wall surface of the peripheral wall by causing the gas-liquid mixed fluid to flow into the inside from a horizontally extending inflow pipe at a high speed and swirling, and centrifugally The gas and liquid are separated by force. The separated gas is discharged from an outflow pipe extending vertically through the ceiling wall of the gas-liquid separation unit, and the separated liquid falls along the inner wall surface of the peripheral wall and is stored in the liquid storage unit. It has come to be.
JP 2004-342385 A

近年では、このような気液分離器に、貯留される液体の量を計測する計測部を設けて、気液混合流体を気体と液体とに分離しながら、分離される液体の量を計測できるようにした液量計測器が開発されつつある。   In recent years, such a gas-liquid separator is provided with a measuring unit that measures the amount of stored liquid, and the amount of separated liquid can be measured while separating the gas-liquid mixed fluid into gas and liquid. Such a liquid amount measuring device is being developed.

しかしながら、例えば前記のようなサイクロン式の気液分離器では、高速で気液混合流体を気液分離部内に流入させているので、気液分離部内の圧力が変動し、この圧力変動によって液体貯留部内に貯留される液体の液面が波立つ現象が生じる。このため、貯留される液体の量を精密に計測することができなかった。   However, in the cyclone type gas-liquid separator as described above, for example, the gas-liquid mixed fluid is allowed to flow into the gas-liquid separation unit at a high speed, so that the pressure in the gas-liquid separation unit fluctuates. A phenomenon occurs in which the liquid level of the liquid stored in the portion undulates. For this reason, the amount of liquid stored cannot be measured accurately.

本発明は、このような事情に鑑み、貯留される液体の量を精密に計測することができる液量計測器を提供することを目的とする。   In view of such circumstances, an object of the present invention is to provide a liquid amount measuring device capable of accurately measuring the amount of stored liquid.

請求項1に係る発明は、内部空間内で気液混合流体からの液体の分離が行われ、その下部に前記液体が貯留される容器と、この容器内に貯留される液体の量を計測する計測部とを備え、前記容器の内部空間内には、当該内部空間を上下に仕切る少なくとも2枚の仕切り板が上下に間隔を隔てて設けられ、前記各仕切り板には、前記気液混合流体から分離された液体を流下させる流通孔が設けられていることを特徴とする液量計測器である。   According to the first aspect of the present invention, the liquid is separated from the gas-liquid mixed fluid in the internal space, and a container in which the liquid is stored in a lower portion thereof and the amount of the liquid stored in the container are measured. A measuring unit, and at least two partition plates that vertically partition the internal space are provided in the interior space of the container with a space therebetween in the vertical direction, and each of the partition plates includes the gas-liquid mixed fluid. It is a liquid quantity measuring device provided with the flow hole which makes the liquid isolate | separated from flow down.

請求項2に係る発明は、請求項1に記載の液量計測器において、最も下側の前記仕切り板の流通孔は、当該仕切り板における前記容器の内壁面に接する部分が切り欠かれることによって形成されていることを特徴とするものである。   According to a second aspect of the present invention, in the liquid amount measuring instrument according to the first aspect, the flow hole of the lowermost partition plate is formed by cutting out a portion of the partition plate that contacts the inner wall surface of the container. It is characterized by being formed.

請求項3に係る発明は、請求項2に記載の液量計測器において、前記各仕切り板は、前記容器の内壁面に接する周縁部から中央部に向かって盛り上がる形状に形成されており、前記各仕切り板の流通孔は、当該仕切り板の周縁部が切り欠かれて構成されていることを特徴とするものである。   The invention according to claim 3 is the liquid amount measuring instrument according to claim 2, wherein each of the partition plates is formed in a shape rising from a peripheral portion in contact with an inner wall surface of the container toward a central portion, The flow hole of each partition plate is configured by notching the peripheral edge of the partition plate.

請求項4に係る発明は、請求項2または3に記載の液量計測器において、前記容器の内壁面は、最も下側の前記仕切り板の下側で当該仕切り板の流通孔を平面視で覆う範囲に張り出す張出部を有していることを特徴とするものである。   The invention according to claim 4 is the liquid amount measuring instrument according to claim 2 or 3, wherein the inner wall surface of the container is below the lowermost partition plate and the flow hole of the partition plate is seen in a plan view. It has the overhang | projection part which protrudes in the range covered.

請求項1に係る発明によれば、流通孔を有する少なくとも2枚の仕切り板によって容器の内部空間が上下に仕切られているので、最も上側の仕切り板の上方で気液混合流体からの液体の分離が行われると、その液体は各仕切り板の流通孔を通りながら流下し、最も下側の仕切り板の下方で貯留される。気液混合流体からの液体の分離が行われる際に圧力変動が生じると、この圧力変動は、最も上側の仕切り板の流通孔を通じて下方に伝わるが、仕切り板は、間隔を隔てて少なくとも2枚設けられているので、これらの仕切り板の間の空間が圧力変動を吸収するクッション層としての役割を果たすようになる。すなわち、最も上側の仕切り板の流通孔を通じて下方に伝わった圧力変動は、仕切り板の間の空間で吸収されて、最も下側の仕切り板の下方には殆ど伝わらなくなる。従って、最も下側の仕切り板の下方で貯留される液体の液面が圧力変動によって波立つことを抑制することができ、容器内に貯留される液体の量を精密に計測できるようになる。   According to the first aspect of the invention, since the internal space of the container is partitioned vertically by the at least two partition plates having the flow holes, the liquid from the gas-liquid mixed fluid is located above the uppermost partition plate. When the separation is performed, the liquid flows down through the flow holes of each partition plate and is stored below the lowermost partition plate. If pressure fluctuation occurs when the liquid is separated from the gas-liquid mixed fluid, the pressure fluctuation is transmitted downward through the flow hole of the uppermost partition plate, but at least two partition plates are spaced apart. Since it is provided, the space between these partition plates serves as a cushion layer that absorbs pressure fluctuations. That is, the pressure fluctuation transmitted downward through the flow hole of the uppermost partition plate is absorbed in the space between the partition plates and hardly transmitted below the lowermost partition plate. Therefore, it is possible to suppress the liquid level of the liquid stored below the lowermost partition plate from undulating due to pressure fluctuation, and the amount of liquid stored in the container can be accurately measured.

請求項2に係る発明によれば、最も下側の仕切り板における容器の内壁面に接する部分が切り欠かれて流通孔が構成されているので、流通孔を通じて流下する液体は容器の内壁面をつたうようになる。このため、液体が滴となって落下することによる液面の波立ちをも抑制することができ、さらに液体の量を精密に計測できるようになる。   According to the second aspect of the present invention, the portion of the lowermost partition plate that is in contact with the inner wall surface of the container is notched to form the flow hole, so that the liquid that flows down through the flow hole passes through the inner wall surface of the container. I'm going to talk. For this reason, it is possible to suppress the undulation of the liquid surface due to the liquid falling as a droplet, and it is possible to accurately measure the amount of the liquid.

請求項3に係る発明によれば、各仕切り板は、周縁部から中央部に向かって盛り上がる形状に形成されているとともに、周縁部に流通孔を有しているので、仕切り板の上面に付着した液体は、当該上面に案内されて周縁部に導かれ、周縁部の流通孔から流下するようになる。このため、液体を仕切り板上に溜めることなく速やかに流下させることができるようになる。   According to the invention which concerns on Claim 3, since each partition plate is formed in the shape which rises toward a center part from a peripheral part, since it has a flow hole in a peripheral part, it adheres to the upper surface of a partition plate The liquid thus guided is guided to the upper surface and guided to the peripheral portion, and flows down from the circulation hole in the peripheral portion. For this reason, it becomes possible to flow down the liquid quickly without accumulating on the partition plate.

請求項4に係る発明によれば、容器の内壁面の張出部で、最も下側の仕切り板の流通孔が下側から覆われるようになっている。このため、流通孔を通る液体が内壁面をつたわらずに流通孔の縁から滴となって落下したとしても、その滴は内壁面の張出部の上に落下するようになるので、液体の滴下による液面の波立ちを確実に防止することができる。   According to the invention which concerns on Claim 4, the distribution | circulation hole of the lowest partition plate is covered from the lower side by the overhang | projection part of the inner wall face of a container. For this reason, even if the liquid passing through the flow hole falls as a drop from the edge of the flow hole without connecting the inner wall surface, the drop will fall on the overhanging portion of the inner wall surface. It is possible to reliably prevent the liquid surface from rippled by dripping.

以下、本発明を実施するための最良の形態について、図面を参照しながら詳細に説明する。   Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

図1および図2に示すように、本発明の一実施形態に係る液量計測器1は、内部空間20を有する容器2と、この容器2内に貯留される液体の量を計測する計測部4とを備えている。   As shown in FIGS. 1 and 2, a liquid amount measuring instrument 1 according to an embodiment of the present invention includes a container 2 having an internal space 20 and a measuring unit that measures the amount of liquid stored in the container 2. 4 is provided.

前記容器2は、気液混合流体を気体と液体とに分離するための気液分離部21と、この気液分離部21の下方に位置し、気液分離部21で分離された液体を貯留するための液体貯留部23とを有している。具体的には、気液分離部21は、鉛直方向に延びる円形筒状の周壁21aおよびこの周壁21aの上側の開口を塞ぐ天井壁21bを有しており、液体貯留部23は、鉛直方向に延びる円形筒状の周壁23aおよびこの周壁23aの下側の開口を塞ぐ底壁23bを有している。   The container 2 is located under the gas-liquid separator 21 for separating the gas-liquid mixed fluid into gas and liquid, and stores the liquid separated by the gas-liquid separator 21. And a liquid storage part 23 for the purpose. Specifically, the gas-liquid separation unit 21 has a circular cylindrical peripheral wall 21a extending in the vertical direction and a ceiling wall 21b that closes the opening on the upper side of the peripheral wall 21a. The liquid storage unit 23 extends in the vertical direction. It has a circular cylindrical peripheral wall 23a that extends and a bottom wall 23b that closes the lower opening of the peripheral wall 23a.

前記気液分離部21の周壁21aの内径は、前記液体貯留部23の周壁23aの内径よりも一回り大きく設定されている。また、気液分離部21の周壁21aと液体貯留部23の周壁23aとは、平面視で同心円となっている。そして、周壁21aの下端部と周壁23aの上端部とは、縮径しながら下方に延びる円錐筒状のテーパー部22によって直線的に連結されている。すなわち、周壁21aの内側面、テーパー部22の内側面、および周壁23aの内側面によって、前記内部空間20を囲繞する連続した内壁面20aが構成されている。   The inner diameter of the peripheral wall 21 a of the gas-liquid separation part 21 is set to be slightly larger than the inner diameter of the peripheral wall 23 a of the liquid storage part 23. Moreover, the peripheral wall 21a of the gas-liquid separation part 21 and the peripheral wall 23a of the liquid storage part 23 are concentric circles by planar view. And the lower end part of the surrounding wall 21a and the upper end part of the surrounding wall 23a are linearly connected by the conical cylinder-shaped taper part 22 extended below, diameter-reducing. That is, a continuous inner wall surface 20a surrounding the inner space 20 is constituted by the inner surface of the peripheral wall 21a, the inner surface of the tapered portion 22, and the inner surface of the peripheral wall 23a.

前記気液分離部21の周壁21aの上部には、水平面上で周壁21aよりも一回り小さな同心円の接線方向に延びる流入管31が当該周壁21aを貫通するように設けられている。また、気液分離部21の天井壁21bの略中央には、鉛直方向に延びる流出管32が当該天井壁21bを貫通するように設けられている。   An inflow pipe 31 extending in a tangential direction of a concentric circle slightly smaller than the peripheral wall 21a on the horizontal plane is provided on the upper portion of the peripheral wall 21a of the gas-liquid separation unit 21 so as to penetrate the peripheral wall 21a. An outflow pipe 32 extending in the vertical direction is provided at substantially the center of the ceiling wall 21b of the gas-liquid separator 21 so as to penetrate the ceiling wall 21b.

前記液体貯留部23の底壁23bには、途中に電磁弁52が配設された排出管51が接続されており、電磁弁52が開の状態にされることにより液体貯留部23内に貯留される液体が排出されるようになっている。   The bottom wall 23b of the liquid reservoir 23 is connected to a discharge pipe 51 in which an electromagnetic valve 52 is disposed in the middle, and is stored in the liquid reservoir 23 when the electromagnetic valve 52 is opened. The liquid to be discharged is discharged.

前記計測部4は、本実施形態では、前記気液分離部21の天井壁21bおよび前記液体貯留部23の底壁23bに配管41,42で接続された差圧計(図示せず)によって気液分離部21内の圧力と液体貯留部23内に貯留される液体の圧力との差圧を測定することにより、その差圧から液体貯留部23内に貯留される液体の量を計測するものである。なお、計測部4は、差圧計を用いたものに限らず、例えば液体の液面高さを測定することにより液体の量を計測するものや、容器2の質量を特定することにより液体の量を計測するもの等であってもよい。   In the present embodiment, the measuring unit 4 is gas-liquid by a differential pressure gauge (not shown) connected to the ceiling wall 21b of the gas-liquid separation unit 21 and the bottom wall 23b of the liquid storage unit 23 by pipes 41 and 42. By measuring the differential pressure between the pressure in the separation unit 21 and the pressure of the liquid stored in the liquid storage unit 23, the amount of liquid stored in the liquid storage unit 23 is measured from the differential pressure. is there. Note that the measurement unit 4 is not limited to the one using a differential pressure gauge. For example, the measurement unit 4 measures the amount of liquid by measuring the liquid level height, or specifies the mass of the container 2 to determine the amount of liquid. It may be one that measures

前記内部空間20内には、当該内部空間20を上下に仕切る2枚の仕切り板6,7が上下に間隔を隔てて設けられている。具体的には、上側の仕切り板6は、前記気液分離部21内の下部に配設され、下側の仕切り板7は、前記テーパー部22で囲まれる空間内に配設されている。   In the internal space 20, two partition plates 6 and 7 that partition the internal space 20 in the vertical direction are provided with a space in the vertical direction. Specifically, the upper partition plate 6 is disposed in the lower part of the gas-liquid separator 21, and the lower partition plate 7 is disposed in a space surrounded by the tapered portion 22.

前記上側の仕切り板6は、図3に示すように、平面視で前記気液分離部21の周壁21aの内径と略一致する直径の円形状をなしており、周壁21aの内側面に接する周縁部が溶接されて固定されている。また、仕切り板6は、周縁部から中央部に向かって盛り上がる形状に、換言すれば中央部が上方に凸となるように湾曲した皿状に形成されている。   As shown in FIG. 3, the upper partition plate 6 has a circular shape with a diameter substantially coincident with the inner diameter of the peripheral wall 21a of the gas-liquid separator 21 in plan view, and a peripheral edge in contact with the inner surface of the peripheral wall 21a. The parts are welded and fixed. In addition, the partition plate 6 is formed in a shape that rises from the peripheral portion toward the central portion, in other words, a curved dish shape so that the central portion is convex upward.

前記仕切り板6の周縁部には、当該仕切り板6の周縁部が外側から切り欠かれることにより、円周上等間隔で複数の流通孔61が形成されている。この流通孔61は、前記気液分離部21で気液混合流体から分離された液体を流下させるためのものである。   A plurality of flow holes 61 are formed at equal intervals on the periphery of the partition plate 6 by notching the periphery of the partition plate 6 from the outside. This flow hole 61 is for flowing down the liquid separated from the gas-liquid mixed fluid in the gas-liquid separator 21.

前記下側の仕切り板7は、図4に示すように、平面視で前記気液分離部21の周壁21aの内径よりも小さく、かつ、前記液体貯留部23の周壁23aの内径よりも一回り大きな直径の円形状をなしている。この仕切り板7は、テーパー部22の内側面上に載置された状態で、テーパー部22の内側面に接する周縁部が溶接されて固定されている。また、仕切り板7は、周縁部から中央部に向かって盛り上がる形状に、換言すれば中央部が上方に凸となるように湾曲した皿状に形成されている。   As shown in FIG. 4, the lower partition plate 7 is smaller than the inner diameter of the peripheral wall 21 a of the gas-liquid separation part 21 in a plan view and is slightly more than the inner diameter of the peripheral wall 23 a of the liquid storage part 23. It has a circular shape with a large diameter. In the state where the partition plate 7 is placed on the inner side surface of the tapered portion 22, the peripheral portion that contacts the inner side surface of the tapered portion 22 is welded and fixed. Moreover, the partition plate 7 is formed in a shape that rises from the peripheral portion toward the central portion, in other words, in a dish shape that is curved so that the central portion is convex upward.

前記仕切り板7の周縁部には、当該仕切り板7の周縁部が外側から切り欠かれることにより、円周上等間隔で複数の流通孔71が形成されている。この流通孔71は、前記気液分離部21で気液混合流体から分離された液体を流下させるためのものである。さらに、流通孔71の大きさは、当該流通孔71が平面視でテーパー部22の存する領域内に収まる程度に設定されている。このため、流通孔71は、テーパー部22の内側面の下端部によって下側から覆われるようになっている。換言すれば、テーパー部22の内側面の下端部が、仕切り板7の下側で当該仕切り板7の流通孔71を平面視で覆う範囲に張り出す張出部20bとなっている。   A plurality of flow holes 71 are formed at equal intervals on the periphery of the partition plate 7 by notching the periphery of the partition plate 7 from the outside. This flow hole 71 is for flowing down the liquid separated from the gas-liquid mixed fluid in the gas-liquid separator 21. Furthermore, the size of the flow hole 71 is set to such an extent that the flow hole 71 fits in the region where the tapered portion 22 exists in a plan view. For this reason, the circulation hole 71 is covered from the lower side by the lower end portion of the inner surface of the tapered portion 22. In other words, the lower end portion of the inner side surface of the taper portion 22 is an overhang portion 20b that projects below the partition plate 7 so as to cover the flow hole 71 of the partition plate 7 in plan view.

次に、本実施形態に係る液量計測器1の操作要領を説明する。   Next, the operation point of the liquid amount measuring device 1 according to the present embodiment will be described.

まず、例えば、流入管31の上流側に、気液混合流体を供給可能な配管(図示せず)を接続し、流出管32の下流側に、吸引ポンプ(図示せず)を接続する。そして、その状態で、前記吸引ポンプを駆動させると、気液混合流体は、流入管31から気液分離部21内に流入し、図1中の矢印aで示すように気液分離部21内で螺旋状に旋回する。これにより、気液混合流体中に含まれる液体は、遠心力で周壁21aの内側面に付着し、気体と液体とが分離される。分離された気体は、流出管32から排出され、分離された液体は、周壁21aの内側面をつたって落下する。   First, for example, a pipe (not shown) capable of supplying a gas-liquid mixed fluid is connected to the upstream side of the inflow pipe 31, and a suction pump (not shown) is connected to the downstream side of the outflow pipe 32. Then, when the suction pump is driven in this state, the gas-liquid mixed fluid flows into the gas-liquid separator 21 from the inflow pipe 31 and in the gas-liquid separator 21 as indicated by an arrow a in FIG. Rotate in a spiral. Thereby, the liquid contained in the gas-liquid mixed fluid adheres to the inner surface of the peripheral wall 21a by centrifugal force, and the gas and the liquid are separated. The separated gas is discharged from the outflow pipe 32, and the separated liquid falls along the inner surface of the peripheral wall 21a.

周壁21aの内側面をつたって落下する液体は、上側の仕切り板6の流通孔61を通じて流下した後にテーパー部22の内側面をつたいながら下側の仕切り板7の流通孔71を通じて流下し、さらに周壁23aの内側面をつたって流下して液体貯留部23内に貯留される。   The liquid falling on the inner surface of the peripheral wall 21a flows down through the flow hole 61 of the upper partition plate 6 and then flows down through the flow hole 71 of the lower partition plate 7 while connecting the inner surface of the tapered portion 22. Furthermore, it flows down through the inner surface of the peripheral wall 23 a and is stored in the liquid storage part 23.

前記のような気液混合流体の旋回により気液分離部21内では圧力変動が生じるが、この圧力変動は、上側の仕切り板6の流通孔61を通じて下方に伝わることとなる。しかし、本実施形態に係る液量計測器1では、間隔を隔てて2枚の仕切り板6,7が設けられているので、これらの仕切り板6,7の間の空間が圧力変動を吸収するクッション層としての役割を果たすようになる。すなわち、上側の仕切り板6の流通孔61を通じて下方に伝わった圧力変動は、仕切り板6,7の間の空間で吸収されて、下側の仕切り板7の下方には殆ど伝わらなくなる。従って、下側の仕切り板7の下方で貯留される液体の液面が圧力変動によって波立つことを抑制することができ、容器2内に貯留される液体の量を精密に計測できるようになる。   Although the pressure fluctuation occurs in the gas-liquid separator 21 due to the swirling of the gas-liquid mixed fluid as described above, this pressure fluctuation is transmitted downward through the flow hole 61 of the upper partition plate 6. However, in the liquid quantity measuring device 1 according to the present embodiment, since the two partition plates 6 and 7 are provided at an interval, the space between the partition plates 6 and 7 absorbs pressure fluctuation. Plays a role as a cushion layer. That is, the pressure fluctuation transmitted downward through the flow hole 61 of the upper partition plate 6 is absorbed in the space between the partition plates 6 and 7 and hardly transmitted to the lower portion of the lower partition plate 7. Accordingly, it is possible to suppress the liquid level of the liquid stored below the lower partition plate 7 from being waved due to pressure fluctuation, and to accurately measure the amount of liquid stored in the container 2. .

また、各仕切り板6,7は、周縁部から中央部に向かって盛り上がる形状に形成されているとともに、その周縁部に流通孔61,71を有しているので、仕切り板6,7の上面に付着した液体は、当該上面に案内されて周縁部に導かれ、周縁部の流通孔61,71から流下するようになるため、液体を仕切り板6,7上に溜めることなく速やかに流下させることができるようになる。   In addition, each partition plate 6, 7 is formed in a shape that rises from the peripheral portion toward the center portion, and has flow holes 61, 71 in the peripheral portion, so the upper surface of the partition plates 6, 7 The liquid adhering to the liquid is guided to the upper surface and guided to the peripheral portion, and flows down from the circulation holes 61 and 71 in the peripheral portion, so that the liquid flows down quickly without accumulating on the partition plates 6 and 7. Will be able to.

さらに、前記気液分離部21には流出管32が設けられているのでこの流出管32に液体が付着して滴下することもあるが、上側の仕切り板71は、滴の液面への落下を防止する機能も果たしている。   Further, since the gas-liquid separator 21 is provided with an outflow pipe 32, liquid may adhere to the outflow pipe 32 and drop, but the upper partition plate 71 drops the liquid onto the liquid surface. It also functions to prevent

また、下側の仕切り板7におけるテーパー部22の内側面に接する部分が切り欠かれて流通孔71が構成されているので、流通孔71を通じて流下する液体はテーパー部22の内側面をつたうようになるため、液体が滴となって落下することによる液面の波立ちをも抑制することができ、さらに液体の量を精密に計測できるようになる。   Further, the portion of the lower partition plate 7 that contacts the inner surface of the tapered portion 22 is cut out to form the flow hole 71, so that the liquid flowing down through the flow hole 71 covers the inner surface of the tapered portion 22. Therefore, it is possible to suppress the ripple of the liquid surface due to the liquid falling as a droplet, and it becomes possible to accurately measure the amount of the liquid.

さらに、本実施形態に係る液量計測器1では、下側の仕切り板7の流通孔71を下側から覆う張出部20bが設けられているので、流通孔71を通る液体がテーパー部22の内側面をつたわらずに流通孔71の縁から滴となって落下したとしても、その滴は張出部20bの上に落下するようになる。すなわち、張出部20bで流通孔71の縁から落下する滴を受けることができるため、液体の滴下による液面の波立ちを確実に防止することができる。   Furthermore, in the liquid amount measuring device 1 according to the present embodiment, the overhanging portion 20b that covers the flow hole 71 of the lower partition plate 7 from the lower side is provided, so that the liquid passing through the flow hole 71 is tapered. Even if it drops as a drop from the edge of the circulation hole 71 without connecting the inner surface of the drop, the drop falls on the overhanging portion 20b. In other words, since the drops falling from the edge of the circulation hole 71 can be received by the overhanging portion 20b, it is possible to reliably prevent the liquid surface from being rippled due to the dropping of the liquid.

そして、このような液量計測器1では、計測部4の差圧計の選定および液体貯留部23の周壁23aの内径の設定を適切に行えば、液体の量を0.1〜0.2ccという高精度な分解能で計測することが可能である。このため、液量計測器1は、特に燃料電池の評価装置に用いられることが好適である。燃料電池では、生成水の量を計算により算出することができるため、その計算値と現実の計測値とを比較することにより、燃料電池の状態を判断することができるからである。   And in such a liquid quantity measuring device 1, if selection of the differential pressure gauge of the measurement part 4 and the setting of the internal diameter of the surrounding wall 23a of the liquid storage part 23 are performed appropriately, the amount of liquid will be 0.1-0.2 cc. It is possible to measure with high resolution. For this reason, it is suitable that the liquid quantity measuring device 1 is used especially for the evaluation apparatus of a fuel cell. This is because in the fuel cell, the amount of produced water can be calculated by calculation, and the state of the fuel cell can be determined by comparing the calculated value with the actual measurement value.

なお、本発明の液量計測器は、燃料電池の評価装置以外にも、例えば医薬・薬学分野、化学プラントにおける気液分離等に用いることも可能である。   In addition to the fuel cell evaluation device, the liquid amount measuring device of the present invention can also be used for, for example, gas-liquid separation in the pharmaceutical / pharmaceutical field and chemical plant.

前記実施形態では、サイクロン原理を利用して気液混合流体を液体と気体とに分離する気液分離部21を有した容器2を示したが、容器2としては、内部空間20内で気液混合流体からの液体の分離が行われるものであればよく、内部空間20内に、例えば気液混合流体を冷却することにより気液混合流体から液体を分離する気液分離手段が別途設けられたものであってもよい。   In the above embodiment, the container 2 having the gas-liquid separation unit 21 that separates the gas-liquid mixed fluid into liquid and gas using the cyclone principle is shown. However, as the container 2, the gas-liquid in the internal space 20 is shown. Any gas can be used as long as the liquid can be separated from the mixed fluid. In the internal space 20, for example, a gas-liquid separating means for separating the liquid from the gas-liquid mixed fluid by cooling the gas-liquid mixed fluid is separately provided. It may be a thing.

また、前記実施形態では、容器2の内部空間20内に2枚の仕切り板6,7が設けられた形態を示したが、内部空間20内には少なくとも2枚の仕切り板が上下に間隔を隔てて設けられていればよく、3枚以上設けられていてもよい。   In the above embodiment, the two partition plates 6 and 7 are provided in the inner space 20 of the container 2. However, at least two partition plates are vertically spaced in the inner space 20. What is necessary is just to be provided apart and three or more sheets may be provided.

さらに、仕切り板6,7を配設する位置は適宜変更可能であり、2枚の仕切り板6,7が共に気液分離部21内の下部に配設されていてもよく、あるいは2枚の仕切り板6,7が共にテーパー部22で囲まれる空間内に配設されていてもよい。   Furthermore, the position where the partition plates 6 and 7 are disposed can be changed as appropriate, and both the two partition plates 6 and 7 may be disposed in the lower part of the gas-liquid separation unit 21 or Both the partition plates 6 and 7 may be disposed in a space surrounded by the tapered portion 22.

さらには、上側の仕切り板6は、図5(a)に示す変形例の液量計測器1’のように、中央部が下方に凸となる皿状に形成されていてもよい。この場合には、流通孔(図示せず)を上側の仕切り板6の中央部に設ければよい。なお、下側の仕切り板7は、その役割上、上方に凸である必要がある。ただし、前記実施形態のように、上側の仕切り板6が上方に凸となっていれば、気液分離部21の周壁21aの内側面から流下する液体の流下距離が最短となるため、周壁21aの内側面に液体を付着させて分離するサイクロン方式に好適となる。   Furthermore, the upper partition plate 6 may be formed in a dish shape with a central portion projecting downward, like a liquid amount measuring device 1 ′ of the modification shown in FIG. In this case, a flow hole (not shown) may be provided in the central portion of the upper partition plate 6. Note that the lower partition plate 7 needs to be convex upward because of its role. However, if the upper partition plate 6 is convex upward as in the above embodiment, the flow distance of the liquid flowing down from the inner surface of the peripheral wall 21a of the gas-liquid separator 21 is the shortest, so the peripheral wall 21a This is suitable for a cyclone system in which a liquid is attached to and separated from the inner surface of the plate.

また、液体貯留部23の周壁23aは、図5(b)に示す変形例の液量計測器1”のように、上部でテーパー部22の下端部から滑らかに拡径しながら下方に延びるような形状となっていてもよい。さらに、周壁23aは円形筒状である必要はなく、例えば矩形筒状等であってもよい。   Further, the peripheral wall 23a of the liquid storage portion 23 extends downward while smoothly expanding the diameter from the lower end portion of the taper portion 22 at the upper portion, like the liquid amount measuring instrument 1 ″ of the modification shown in FIG. 5B. Furthermore, the peripheral wall 23a does not have to be a circular cylinder, and may be, for example, a rectangular cylinder.

本発明の一実施形態に係る液量計測器を示す図であり、(a)は平面図、(b)は正面図である。It is a figure which shows the liquid quantity measuring device which concerns on one Embodiment of this invention, (a) is a top view, (b) is a front view. 図1(a)のII−II線断面図である。It is the II-II sectional view taken on the line of Fig.1 (a). 図2のIII−III線断面図である。It is the III-III sectional view taken on the line of FIG. 図2のIV−IV線断面図である。It is the IV-IV sectional view taken on the line of FIG. (a)(b)は変形例の液量計測器の正面図である。(A) and (b) are the front views of the liquid quantity measuring device of a modification.

符号の説明Explanation of symbols

1,1’,1” 液量計測器
2 容器
20 内部空間
20a 内壁面
20b 張出部
21 気液分離部
22 テーパー部
23 液体貯留部
31 流入管
32 流出管
4 計測部
6,7 仕切り板
61,71 流通孔
1, 1 ′, 1 ″ Liquid volume measuring device 2 Container 20 Internal space 20a Inner wall surface 20b Overhang portion 21 Gas-liquid separation portion 22 Taper portion 23 Liquid storage portion 31 Inflow pipe 32 Outflow pipe 4 Measurement section 6,7 Partition plate 61 , 71 distribution hole

Claims (4)

内部空間内で気液混合流体からの液体の分離が行われ、その下部に前記液体が貯留される容器と、この容器内に貯留される液体の量を計測する計測部とを備え、
前記容器の内部空間内には、当該内部空間を上下に仕切る少なくとも2枚の仕切り板が上下に間隔を隔てて設けられ、
前記各仕切り板には、前記気液混合流体から分離された液体を流下させる流通孔が設けられていることを特徴とする液量計測器。
The liquid is separated from the gas-liquid mixed fluid in the internal space, and includes a container in which the liquid is stored in a lower part thereof, and a measurement unit that measures the amount of liquid stored in the container,
In the internal space of the container, at least two partition plates that partition the internal space up and down are provided with a space in the vertical direction,
Each of the partition plates is provided with a flow hole through which the liquid separated from the gas-liquid mixed fluid flows down.
最も下側の前記仕切り板の流通孔は、当該仕切り板における前記容器の内壁面に接する部分が切り欠かれることによって形成されていることを特徴とする請求項1に記載の液量計測器。   The flow rate measuring device according to claim 1, wherein the flow hole of the lowermost partition plate is formed by cutting out a portion of the partition plate that contacts the inner wall surface of the container. 前記各仕切り板は、前記容器の内壁面に接する周縁部から中央部に向かって盛り上がる形状に形成されており、前記各仕切り板の流通孔は、当該仕切り板の周縁部が切り欠かれて構成されていることを特徴とする請求項2に記載の液量計測器。   Each of the partition plates is formed in a shape that rises from a peripheral portion in contact with the inner wall surface of the container toward a central portion, and the flow hole of each of the partition plates is configured by cutting out the peripheral portion of the partition plate. The liquid quantity measuring device according to claim 2, wherein 前記容器の内壁面は、最も下側の前記仕切り板の下側で当該仕切り板の流通孔を平面視で覆う範囲に張り出す張出部を有していることを特徴とする請求項2または3に記載の液量計測器。   The inner wall surface of the container has an overhanging portion that projects to a range that covers the flow hole of the partition plate in a plan view below the lowermost partition plate. 3. The liquid amount measuring instrument according to 3.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009210211A (en) * 2008-03-05 2009-09-17 Hitachi Plant Technologies Ltd Air conditioning system and its operating method

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JPS6111670B2 (en) * 1977-12-14 1986-04-04 Hitachi Ltd
JPH0459421U (en) * 1990-09-28 1992-05-21
JPH057801A (en) * 1991-07-03 1993-01-19 Miura Kenkyusho:Kk Swirling separator
JPH06154709A (en) * 1992-11-19 1994-06-03 Mita Ind Co Ltd Particle classifier
JP2006021070A (en) * 2004-07-06 2006-01-26 Fukuma Technica:Kk Cyclone, dust removing device and incinerator equipped with cyclone and exhaust gas treatment method

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Publication number Priority date Publication date Assignee Title
JPS6111670B2 (en) * 1977-12-14 1986-04-04 Hitachi Ltd
JPH0459421U (en) * 1990-09-28 1992-05-21
JPH057801A (en) * 1991-07-03 1993-01-19 Miura Kenkyusho:Kk Swirling separator
JPH06154709A (en) * 1992-11-19 1994-06-03 Mita Ind Co Ltd Particle classifier
JP2006021070A (en) * 2004-07-06 2006-01-26 Fukuma Technica:Kk Cyclone, dust removing device and incinerator equipped with cyclone and exhaust gas treatment method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009210211A (en) * 2008-03-05 2009-09-17 Hitachi Plant Technologies Ltd Air conditioning system and its operating method

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