WO2023032069A1 - Foreign matter removal device - Google Patents

Foreign matter removal device Download PDF

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Publication number
WO2023032069A1
WO2023032069A1 PCT/JP2021/032093 JP2021032093W WO2023032069A1 WO 2023032069 A1 WO2023032069 A1 WO 2023032069A1 JP 2021032093 W JP2021032093 W JP 2021032093W WO 2023032069 A1 WO2023032069 A1 WO 2023032069A1
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Prior art keywords
foreign matter
fluid
trap
section
outflow
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PCT/JP2021/032093
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French (fr)
Japanese (ja)
Inventor
竜晴 山口
幸大 栗原
清治 野田
茂 飯島
一暉 長田
正純 知崎
慶郎 青▲柳▼
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三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2021/032093 priority Critical patent/WO2023032069A1/en
Priority to JP2021576983A priority patent/JP7317153B1/en
Publication of WO2023032069A1 publication Critical patent/WO2023032069A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber

Definitions

  • the present invention relates to a foreign matter removing device for removing foreign matter contained in fluid in a pipe.
  • a foreign matter removing device that removes foreign matter by using swirl flow and gravity sedimentation when removing foreign matter contained in fluid in a pipe (for example, Patent Document 1).
  • This foreign matter removing device utilizes swirl flow and gravity settling to remove foreign matter such as iron rust, insoluble salts, corrosion products, etc. that may be contained in fluid such as water flowing in the pipe, Contribute to damage control.
  • a foreign matter removing device is used, for example, in a heat pump hot water supply and heating system that has a circulating water circuit that uses iron radiators and iron pipes.
  • Iron radiators, iron pipes, and the like in the circulating water circuit can generate foreign matter such as iron rust in the fluid in the circulating water circuit. Therefore, the foreign matter removing device is used to remove foreign matter, such as iron rust, which has a higher specific gravity than the fluid.
  • foreign matter such as air which has a lower specific gravity than the fluid
  • air dissolved in the fluid in the circuit may be generated as air bubbles due to temperature rise depending on the operation of the hot water supply/room heating system. Since there is a possibility that the generated air bubbles may affect the pump, there is a demand for a foreign matter removing device that can more appropriately remove foreign matter, such as air bubbles, which has a lower specific gravity than the fluid.
  • the present invention has been made in view of the above circumstances, and has the ability to remove foreign matter such as iron rust, which has a higher specific gravity than the fluid, and also has the ability to remove foreign matter, such as air bubbles, which has a lower specific gravity than the fluid. It is an object of the present invention to provide a foreign matter removing device with improved performance.
  • a foreign matter removing device is a foreign matter removing device that removes foreign matter contained in a fluid in a pipe by using a swirling flow in a trap portion, and includes an inflow portion that causes the fluid to flow into the trap portion, a tubular A separating portion having a structure for separating the fluid that has flowed in from the inflow portion into the inner fluid of the swirling flow flowing inside the cylindrical structure and the outer fluid of the swirling flow flowing outside the cylindrical structure, and the separating portion are separated. an outflow portion for causing the outer fluid to flow out of the inside of the trap portion.
  • a foreign matter removing apparatus capable of removing foreign matter, such as iron rust, which has a higher specific gravity than a fluid, while improving the ability to remove foreign matter, such as air bubbles, having a lower specific gravity than the fluid. It becomes possible to
  • FIG. 1 is a vertical sectional view schematically showing the foreign matter removing device according to Embodiment 1;
  • FIG. 1 is a horizontal sectional view schematically showing the foreign matter removing device according to Embodiment 1;
  • FIG. 1 is a vertical sectional view schematically showing the foreign matter removing device according to Embodiment 1;
  • FIG. 1 is a horizontal sectional view schematically showing the foreign matter removing device according to Embodiment 1;
  • FIG. 1 is a vertical sectional view schematically showing a foreign matter removing device 1 according to Embodiment 1.
  • FIG. FIG. 2 is a horizontal sectional view schematically showing the foreign matter removing device 1 according to Embodiment 1.
  • the foreign matter removing device 1 is installed in a circuit through which a fluid such as water flows.
  • a foreign matter removing device 1 is a device that removes foreign matter contained in an inflow fluid and outflows the fluid. It includes a discharge means 7, a second foreign matter trapping section 8, a second foreign matter discharge means 9, and the like.
  • arrows indicate the moving direction of the fluid flowing through the foreign matter removing apparatus 1. As shown in FIG.
  • the trap 2 is a hollow cylindrical structure. When the contaminant removing apparatus 1 is installed in a circuit through which fluid flows, the trap 2 is a member arranged to extend vertically as illustrated in FIG. It has a reduced diameter structure that reduces the diameter.
  • the trap 2 may be made of metal such as stainless steel, brass, copper, aluminum, steel, or may be made of polytetrafluoroethylene (Teflon (registered trademark) resin), polyvinyl chloride, polyethylene, polystyrene, polypropylene, polysulfone, isoprene rubber.
  • butadiene rubber butadiene rubber, styrene-butadiene rubber, aromatic polyamide (nylon 6 or nylon 6-6, etc.), ABS (acrylonitrile-butadiene-styrene), acrylic, carbon fiber reinforced plastic, and the like.
  • the inflow part 3 is an element that constitutes a flow path for allowing the fluid flowing in the circuit to flow into the trap 2 .
  • One of the inlets 3 is connected to the circuit via piping and the other of the inlets 3 is connected to the trap 2, as illustrated in FIG.
  • the outflow part 4 is an element that constitutes a flow path for causing the fluid flowing in the trap 2 to flow out to a circuit outside the trap 2 . As illustrated in FIG. 1, one of the outlets 4 is connected to the trap 2 and the other of the outlets 4 is connected to the circuit via piping.
  • the outflow part 4 discharges the outer fluid separated into the inner fluid of the swirling flow flowing inside the cylindrical structure and the outer fluid of the swirling flow flowing outside the cylindrical structure by the later-described separating part 5 to the circuit outside the trap 2 .
  • the inflow portion 3 and the outflow portion 4 are such that the central axis in the flow direction of the fluid flowing in the inflow portion 3 and the central axis in the flow direction of the fluid flowing in the outflow portion 4 are deviated.
  • the central axis of the fluid flowing through the inflow portion 3 and the central axis of the fluid flowing through the outflow portion 4 are not arranged on the same straight line. There is. With this configuration, the fluid that has flowed into the foreign matter removing device 1 from the inflow portion 3 is prevented from flowing straight out of the foreign matter removing device 1 from the outflow portion 4 as it is.
  • the fluid that has flowed into the foreign matter removing apparatus 1 from the inflow portion 3 becomes a swirling flow that swirls within the trap 2 along the outer periphery of the trap 2 whose horizontal cross section is circular, and then flows into the outflow portion. 4 to the outside of the foreign matter removing apparatus 1 .
  • the separation part 5 is a separation member for separating the fluid that has flowed into the foreign matter removing device 1 from the inflow part 3 into the outer peripheral side of the trap 2 and the central axis side of the trap 2 .
  • the separation part 5 is also a hollow cylindrical member arranged inside the trap 2 and spaced apart from the outer circumference of the trap 2, and has a tubular structure.
  • the inner diameter of the separating part 5 is smaller than the inner diameter of the trap 2 at the position where the separating part 5 is arranged.
  • the fluid that has flowed into the foreign matter removing apparatus 1 from the inflow portion 3 is divided into two types: the inner fluid of the swirling flow flowing inside the separating portion 5 and the outer fluid of the swirling flow flowing outside the separating portion 5 in the trap 2 . is separated into
  • the separating section 5 is arranged above the trap 2 as illustrated in FIG.
  • the separation section 5 is arranged vertically above the inflow section 3 .
  • the outflow section 4 is also arranged vertically above the inflow section 3, as illustrated in FIG. Therefore, the separating portion 5 is arranged at a position approximately equal to the connecting portion of the trap 2 to which the outflow portion 4 is connected in the vertical direction. In other words, the outflow portion 4 is arranged so as to face the separation portion 5 outside the separation portion 5 in the outer peripheral direction.
  • the second foreign matter such as air bubbles contained in the fluid that has flowed in from the inflow portion 3, which is a foreign matter having a lower specific gravity than the fluid, is collected in the separation portion 5 vertically above the inflow portion 3, and the foreign matter is collected.
  • the second foreign matter such as air bubbles, which is lighter in specific gravity than the fluid, is removed, and the outside fluid separated by the separating portion 5 flows out from the outflow portion 4 .
  • the fluid flows in the trap 2 in a cyclonic manner as a swirling flow to form a vortex.
  • the rotation associated with the vortex exerts a centrifugal force that pushes the fluid outward.
  • the fluid inside the trap 2 has a high pressure on the outside and a low pressure on the center side.
  • a second foreign object, such as air bubbles, which has a lower specific gravity than the fluid will gather in the center of the trap 2 depending on such a pressure difference.
  • the second foreign matter such as air bubbles, which has a lower specific gravity than the fluid, gathers in the central portion inside the separation section 5 inside the trap 2 .
  • the first foreign matter such as iron rust, which has a higher specific gravity than the fluid
  • the outflow portion 4 arranged so as to face the separating portion 5 outside in the outer peripheral direction of the separating portion 5 removes only the first foreign matter, such as iron rust, which has a higher specific gravity than the fluid.
  • the trap 2 is tapered in the vertical direction of the contaminant removing apparatus 1 so that its diameter decreases downward at a portion below the position where the inflow portion 3 is connected.
  • Such a diameter-reduced tapered structure makes it possible to prevent the gravity-settled first foreign matter having a high specific gravity from being lifted up by the motion of the fluid.
  • the first contaminant capturing part 6 is a component for capturing the first contaminant, such as iron rust, which has a higher specific gravity than the fluid.
  • the first foreign matter trapping portion 6 is a space provided below the diameter-reduced tapered structure of the trap 2 .
  • the first contaminant capturing section 6 captures the first contaminant having a high specific gravity that has settled due to gravity in the space.
  • a first foreign object discharging means 7 is provided vertically below the first foreign object capturing section 6 .
  • the first contaminant discharging means 7 is a component for discharging the first contaminant having a high specific gravity captured by the first contaminant capturing portion 6 .
  • the first foreign matter discharge means 7 is, for example, a valve, and when it is in an open state, it discharges the first foreign matter with a heavy specific gravity captured by the first foreign matter capturing portion 6 to the outside.
  • the second contaminant capturing section 8 is a component for capturing a second contaminant, such as air bubbles, which has a lower specific gravity than the fluid. Specifically, as shown in FIG. 1, the second foreign object capturing section 8 is vertically above the separation section 5 and provided above the uppermost part of the inner wall of the trap 2 related to L1 described above. Space. With such a configuration, the second foreign matter separated by the separating portion 5 and contained in the inner fluid can be efficiently caught in the space of the second foreign matter capturing portion 8 .
  • a second foreign object discharging means 9 is provided vertically above the second foreign object capturing section 8 .
  • the second contaminant discharging means 9 is a component for discharging the second contaminant having a low specific gravity captured by the second contaminant capturing portion 8 .
  • the second foreign matter discharging means 9 is, for example, an air valve, and when opened, discharges the second foreign matter having a low specific gravity captured by the second foreign matter trapping portion 8 to the outside.
  • the bubbles captured by the second foreign matter capturing section 8 can be combined to form air by gathering together.
  • the horizontal inner diameter of the second foreign matter trapping portion 8 is set larger than the horizontal inner diameter of the separating portion 5 . It is designed to be small.

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  • Degasification And Air Bubble Elimination (AREA)

Abstract

The foreign matter removal device according to one aspect of the present invention removes foreign matters included in fluid within a pipe using a rotational flow in a trapping part and comprises an inflow part, a separating part, and an outflow part. The inflow part allows fluid to flow into the trapping part. The separating part has a cylindrical structure and separates the fluid from the inflow part into internal fluid, which is a rotational flow flowing inside the cylindrical structure, and external fluid, which is a rotational flow flowing outside the cylindrical structure. The outflow part allows the external fluid separated by the separating part to flow out of the trapping part.

Description

異物除去装置Foreign matter removal device
本発明は、配管内の流体に含まれる異物を除去する異物除去装置に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foreign matter removing device for removing foreign matter contained in fluid in a pipe.
　配管内の流体に含まれる異物を除去する際に、旋回流と重力沈降とを利用して異物除去を行う異物除去装置が知られている（例えば、特許文献１）。当異物除去装置は、旋回流と重力沈降とを利用し、例えば、配管内に流れる水等の流体に含まれ得る鉄錆、不溶性塩、腐食生成物等の異物の除去を行い、配管内のダメージ抑制に貢献する。 A foreign matter removing device is known that removes foreign matter by using swirl flow and gravity sedimentation when removing foreign matter contained in fluid in a pipe (for example, Patent Document 1). This foreign matter removing device utilizes swirl flow and gravity settling to remove foreign matter such as iron rust, insoluble salts, corrosion products, etc. that may be contained in fluid such as water flowing in the pipe, Contribute to damage control.
　異物除去装置は、例えば、鉄製ラジエータおよび鉄製配管等が使用された循環水回路を有するヒートポンプ式の給湯暖房システムに用いられる。循環水回路の鉄製ラジエータおよび鉄製配管等は、循環水回路内の流体に鉄錆等の異物を発生し得る。そのため異物除去装置は、鉄錆等の流体より比重の重い異物の除去に使用される。 A foreign matter removing device is used, for example, in a heat pump hot water supply and heating system that has a circulating water circuit that uses iron radiators and iron pipes. Iron radiators, iron pipes, and the like in the circulating water circuit can generate foreign matter such as iron rust in the fluid in the circulating water circuit. Therefore, the foreign matter removing device is used to remove foreign matter, such as iron rust, which has a higher specific gravity than the fluid.
特公昭５４－０１２６５９号公報Japanese Patent Publication No. 54-012659
　流体が流れる回路においては、流体より比重の重い鉄錆等の異物に加え、流体より比重の軽い空気等の異物も発生し得る。例えば、上述したようなヒートポンプ式の給湯暖房システムにおいては、給湯暖房システムの稼働に依存した温度上昇によって、回路中の流体内に溶存していた空気が気泡として発生し得る。発生した気泡がポンプへ影響する虞もあるため、気泡のような流体よりも比重の軽い異物もより適切に除去できる異物除去装置が求められていた。  In a circuit where fluid flows, in addition to foreign matter such as iron rust, which has a higher specific gravity than the fluid, foreign matter such as air, which has a lower specific gravity than the fluid, can also occur. For example, in the heat pump type hot water supply/room heating system as described above, air dissolved in the fluid in the circuit may be generated as air bubbles due to temperature rise depending on the operation of the hot water supply/room heating system. Since there is a possibility that the generated air bubbles may affect the pump, there is a demand for a foreign matter removing device that can more appropriately remove foreign matter, such as air bubbles, which has a lower specific gravity than the fluid. 
　本発明は、上記のような事情を鑑みてなされたものであり、鉄錆等の流体より比重の重い異物の除去を可能としつつも、気泡のような流体よりも比重の軽い異物の除去能力がより向上した異物除去装置を提供することを目的とする。 The present invention has been made in view of the above circumstances, and has the ability to remove foreign matter such as iron rust, which has a higher specific gravity than the fluid, and also has the ability to remove foreign matter, such as air bubbles, which has a lower specific gravity than the fluid. It is an object of the present invention to provide a foreign matter removing device with improved performance.
　本発明の一側面に係る異物除去装置は、配管内の流体に含まれる異物をトラップ部内の旋回流を用いて除去する異物除去装置であり、流体をトラップ部内に流入させる流入部と、筒状構造を有し、流入部から流入した流体を筒状構造の内側を流れる旋回流の内側流体と筒状構造の外側を流れる旋回流の外側流体とに分離する分離部と、分離部が分離した外側流体をトラップ部内から流出させる流出部と、を備える。 A foreign matter removing device according to one aspect of the present invention is a foreign matter removing device that removes foreign matter contained in a fluid in a pipe by using a swirling flow in a trap portion, and includes an inflow portion that causes the fluid to flow into the trap portion, a tubular A separating portion having a structure for separating the fluid that has flowed in from the inflow portion into the inner fluid of the swirling flow flowing inside the cylindrical structure and the outer fluid of the swirling flow flowing outside the cylindrical structure, and the separating portion are separated. an outflow portion for causing the outer fluid to flow out of the inside of the trap portion.
　本発明の一側面によれば、流体より比重の重い鉄錆等の異物の除去を可能としつつも、気泡のような流体よりも比重の軽い異物の除去能力がより向上した異物除去装置を提供することが可能となる。 According to one aspect of the present invention, there is provided a foreign matter removing apparatus capable of removing foreign matter, such as iron rust, which has a higher specific gravity than a fluid, while improving the ability to remove foreign matter, such as air bubbles, having a lower specific gravity than the fluid. It becomes possible to
実施の形態１に係る異物除去装置を模式的に示す垂直方向断面図である。1 is a vertical sectional view schematically showing the foreign matter removing device according to Embodiment 1; FIG. 実施の形態１に係る異物除去装置を模式的に示す水平方向断面図である。1 is a horizontal sectional view schematically showing the foreign matter removing device according to Embodiment 1; FIG.
　以下、図面を参照し、本願が開示する異物除去装置の実施の形態を詳細に説明する。具体的には、配管内の流体に含まれる異物をトラップ部内の旋回流を用いて除去する異物除去装置について、鉄錆等の流体より比重の重い第１異と物気泡のような流体よりも比重の軽い第２異物とを分離する一例を用いて説明する。なお、以下に示す実施の形態は一例であり、これらの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 foreign matter removing device disclosed by the present application will be described in detail with reference to the drawings. Specifically, regarding a foreign matter removal device that removes foreign matter contained in a fluid in a pipe using a swirl flow in a trap, the first foreign matter, which has a higher specific gravity than the fluid such as iron rust, is more difficult than the fluid such as bubbles. An example of separating a second foreign matter having a low specific gravity will be described. In addition, the embodiment shown below is an example, and the present invention is not limited by these embodiments.
実施の形態１．
　図１は、実施の形態１に係る異物除去装置１を模式的に示す垂直方向断面図である。図２は、実施の形態１に係る異物除去装置１を模式的に示す水平方向断面図である。異物除去装置１は、水等の流体が流れる回路に設置される。異物除去装置１は、流入した流体に含まれる異物を除去して流体を流出する装置であり、トラップ２、流入部３、流出部４、分離部５、第１異物捕捉部６、第１異物排出手段７、第２異物捕捉部８、第２異物排出手段９等を備える。図１および図２において、異物除去装置１内を流れる流体の移動方向が矢印で示してある。 Embodiment 1.
FIG. 1 is a vertical sectional view schematically showing a foreign matter removing device 1 according to Embodiment 1. FIG. FIG. 2 is a horizontal sectional view schematically showing the foreign matter removing device 1 according to Embodiment 1. As shown in FIG. The foreign matter removing device 1 is installed in a circuit through which a fluid such as water flows. A foreign matter removing device 1 is a device that removes foreign matter contained in an inflow fluid and outflows the fluid. It includes a discharge means 7, a second foreign matter trapping section 8, a second foreign matter discharge means 9, and the like. In FIGS. 1 and 2, arrows indicate the moving direction of the fluid flowing through the foreign matter removing apparatus 1. As shown in FIG.
　トラップ２は、中空の円筒状構造体である。流体が流れる回路に異物除去装置１が設置された場合、トラップ２は、図１に例示してあるように、垂直方向へ延出するよう配置される部材であり、垂直方向の下方に向けて径が小さくなる縮径構造を備える。トラップ２は、ステンレス、黄銅、銅、アルミニウム、鉄鋼などの金属製でもよく、また、ポリテトラフルオロエチレン（テフロン（登録商標）樹脂）、ポリ塩化ビニル、ポリエチレン、ポリスチレン、ポリプロピレン、ポリスルフォン、イソプレンゴム、ブタジエンゴム、スチレンブタジエンゴム、芳香族ポリアミド（ナイロン６又はナイロン６－６等）ＡＢＳ（アクリロニトリル・ブタジエン・スチレン）、アクリル、炭素繊維強化プラスチックなどの樹脂製でもよい。 The trap 2 is a hollow cylindrical structure. When the contaminant removing apparatus 1 is installed in a circuit through which fluid flows, the trap 2 is a member arranged to extend vertically as illustrated in FIG. It has a reduced diameter structure that reduces the diameter. The trap 2 may be made of metal such as stainless steel, brass, copper, aluminum, steel, or may be made of polytetrafluoroethylene (Teflon (registered trademark) resin), polyvinyl chloride, polyethylene, polystyrene, polypropylene, polysulfone, isoprene rubber. , butadiene rubber, styrene-butadiene rubber, aromatic polyamide (nylon 6 or nylon 6-6, etc.), ABS (acrylonitrile-butadiene-styrene), acrylic, carbon fiber reinforced plastic, and the like.
　流入部３は、回路に流れる流体をトラップ２内に流入させるための流路を構成する要素である。図１に例示してあるように、流入部３の一方は配管を介して回路に接続され、流入部３の他方はトラップ２に接続される。 The inflow part 3 is an element that constitutes a flow path for allowing the fluid flowing in the circuit to flow into the trap 2 . One of the inlets 3 is connected to the circuit via piping and the other of the inlets 3 is connected to the trap 2, as illustrated in FIG.
　流出部４は、トラップ２内に流れる流体をトラップ２外の回路に流出させるための流路を構成する要素である。図１に例示してるように、流出部４の一方はトラップ２に接続され、流出部４の他方は配管を介して回路に接続される。流出部４は、後述する分離部５が筒状構造の内側を流れる旋回流の内側流体と筒状構造の外側を流れる旋回流の外側流体とに分離した外側流体をトラップ２外の回路に流出させる。 The outflow part 4 is an element that constitutes a flow path for causing the fluid flowing in the trap 2 to flow out to a circuit outside the trap 2 . As illustrated in FIG. 1, one of the outlets 4 is connected to the trap 2 and the other of the outlets 4 is connected to the circuit via piping. The outflow part 4 discharges the outer fluid separated into the inner fluid of the swirling flow flowing inside the cylindrical structure and the outer fluid of the swirling flow flowing outside the cylindrical structure by the later-described separating part 5 to the circuit outside the trap 2 . Let
　流入部３および流出部４は、図２に例示してあるように、流入部３内を流れる流体の流れ方向の中心軸と流出部４内を流れる流体の流れ方向の中心軸とが偏位するように構成してあり、言い換えると、流入部３内を流れる流体の流れ方向の中心軸と流出部４内を流れる流体の流れ方向の中心軸とが同一直線上に配置されないように構成してある。この構成によって、流入部３から異物除去装置１内に流入した流体がそのまま直線的に流出部４から異物除去装置１外へ流出される事態が抑制されることになる。言い換えると、流入部３から異物除去装置１内に流入した流体は、水平方向断面が円形状であるトラップ２の外周に沿ってトラップ２内で渦を巻いた旋回流となったあと、流出部４から異物除去装置１外に流出されることになる。 As illustrated in FIG. 2, the inflow portion 3 and the outflow portion 4 are such that the central axis in the flow direction of the fluid flowing in the inflow portion 3 and the central axis in the flow direction of the fluid flowing in the outflow portion 4 are deviated. In other words, the central axis of the fluid flowing through the inflow portion 3 and the central axis of the fluid flowing through the outflow portion 4 are not arranged on the same straight line. There is. With this configuration, the fluid that has flowed into the foreign matter removing device 1 from the inflow portion 3 is prevented from flowing straight out of the foreign matter removing device 1 from the outflow portion 4 as it is. In other words, the fluid that has flowed into the foreign matter removing apparatus 1 from the inflow portion 3 becomes a swirling flow that swirls within the trap 2 along the outer periphery of the trap 2 whose horizontal cross section is circular, and then flows into the outflow portion. 4 to the outside of the foreign matter removing apparatus 1 .
　分離部５は、流入部３から異物除去装置１内に流入した流体をトラップ２の外周側とトラップ２の中心軸側とに分離するための分離部材である。分離部５はまた、トラップ２の内側であって、トラップ２の外周から離隔した位置に配置される中空の円筒状部材であり、筒状構造を備える。分離部５の内径は、分離部５が配置されて位置におけるトラップ２の内径よりも小さい。このような構成によって、流入部３から異物除去装置１内に流入した流体は、トラップ２内において分離部５の内側を流れる旋回流の内側流体と分離部５の外側を流れる旋回流の外側流体とに分離される。 The separation part 5 is a separation member for separating the fluid that has flowed into the foreign matter removing device 1 from the inflow part 3 into the outer peripheral side of the trap 2 and the central axis side of the trap 2 . The separation part 5 is also a hollow cylindrical member arranged inside the trap 2 and spaced apart from the outer circumference of the trap 2, and has a tubular structure. The inner diameter of the separating part 5 is smaller than the inner diameter of the trap 2 at the position where the separating part 5 is arranged. With such a configuration, the fluid that has flowed into the foreign matter removing apparatus 1 from the inflow portion 3 is divided into two types: the inner fluid of the swirling flow flowing inside the separating portion 5 and the outer fluid of the swirling flow flowing outside the separating portion 5 in the trap 2 . is separated into
　分離部５は、図１に例示してあるように、トラップ２の上方に配置される。例えば分離部５は、流入部３よりも鉛直上方に配置される。流出部４もまた、図１に例示してあるように、流入部３よりも鉛直上方に配置される。そのため分離部５は、流出部４が接続されるトラップ２の接続部分と垂直方向で同程度の位置に配置される。言い換えると、流出部４は、分離部５の外周方向外側で分離部５と対向するように配置される。このような構成により、流入部３から流入した流体中に含まれる気泡のような流体よりも比重の軽い異物である第２異物を流入部３よりも鉛直上方の分離部５内に集め、異物除去装置１は、気泡のような流体よりも比重の軽い異物である第２異物が取り除かれ分離部５により分離された外側流体を流出部４から流出することになる。 The separating section 5 is arranged above the trap 2 as illustrated in FIG. For example, the separation section 5 is arranged vertically above the inflow section 3 . The outflow section 4 is also arranged vertically above the inflow section 3, as illustrated in FIG. Therefore, the separating portion 5 is arranged at a position approximately equal to the connecting portion of the trap 2 to which the outflow portion 4 is connected in the vertical direction. In other words, the outflow portion 4 is arranged so as to face the separation portion 5 outside the separation portion 5 in the outer peripheral direction. With such a configuration, the second foreign matter such as air bubbles contained in the fluid that has flowed in from the inflow portion 3, which is a foreign matter having a lower specific gravity than the fluid, is collected in the separation portion 5 vertically above the inflow portion 3, and the foreign matter is collected. In the removing device 1 , the second foreign matter, such as air bubbles, which is lighter in specific gravity than the fluid, is removed, and the outside fluid separated by the separating portion 5 flows out from the outflow portion 4 .
　上述したように異物除去装置１は、トラップ２内で流体が旋回流としてサイクロン状に流れて渦を形成することになる。渦が形成された場合、渦に係る回転によって遠心力が働いて流体が外側に押される。遠心力が働くことによって、トラップ２内の流体は、外側が高圧となり、中心側が低圧となる。気泡のような流体よりも比重の軽い第２異物は、このような圧力の相違に依存してトラップ２内の中央に集まることになる。言い換えると、気泡のような流体よりも比重の軽い第２異物は、トラップ２内にある分離部５の内側の中央部分に集まることになる。一方、鉄錆等の流体より比重の重い第１異物は、このような圧力の相違に依存してトラップ２内の外周側に移動し、重力沈降によってトラップ２内の下方に集まることになる。そのため実施の形態１に係る異物除去装置１において、分離部５の外周方向外側で分離部５と対向するように配置された流出部４は、鉄錆等の流体より比重の重い第１異物だけでなく気泡のような流体よりも比重の軽い第２異物も適切に取り除いた流体を流出することが可能となる。 As described above, in the foreign matter removing device 1, the fluid flows in the trap 2 in a cyclonic manner as a swirling flow to form a vortex. When a vortex is formed, the rotation associated with the vortex exerts a centrifugal force that pushes the fluid outward. Due to the action of centrifugal force, the fluid inside the trap 2 has a high pressure on the outside and a low pressure on the center side. A second foreign object, such as air bubbles, which has a lower specific gravity than the fluid, will gather in the center of the trap 2 depending on such a pressure difference. In other words, the second foreign matter, such as air bubbles, which has a lower specific gravity than the fluid, gathers in the central portion inside the separation section 5 inside the trap 2 . On the other hand, the first foreign matter, such as iron rust, which has a higher specific gravity than the fluid, moves to the outer peripheral side in the trap 2 depending on the difference in pressure, and gathers in the lower part of the trap 2 due to gravitational settling. Therefore, in the foreign matter removing apparatus 1 according to Embodiment 1, the outflow portion 4 arranged so as to face the separating portion 5 outside in the outer peripheral direction of the separating portion 5 removes only the first foreign matter, such as iron rust, which has a higher specific gravity than the fluid. In addition, it is possible to flow out the fluid from which second foreign substances such as air bubbles, which have a lower specific gravity than the fluid, are appropriately removed.
　異物除去装置１の垂直方向において、図１に示したように、トラップ２の内壁の最上部から流入部３の内壁の最上部までの距離をＬ１とし、トラップ２の内壁の最上部から分離部５の最下部までの距離をＨとし、流出部４の内壁の最上部から最下部までの距離をＬ２とした場合、下の式（１）関係が満たされる。そのため、流入部３から流入した流体は、鉄錆等の流体より比重の重い第１異物が重力沈降によってトラップ２内の下方に集まることになり、比重の重い第１異物が取り除かれた流体が分離部５で分離部５の内側を流れる内側流体と分離部５の外側を流れる外側流体とに分離され、気泡のような流体よりも比重の軽い第２異物が内側流体に集まり、比重の重い第１異物および比重の軽い第２異物が取り除かれた外側流体が流出部４から流出され得る。
　Ｌ１≧　Ｈ　≧　Ｌ２　・・・（１） In the vertical direction of the foreign matter removing apparatus 1, as shown in FIG. When the distance to the bottom of the outflow portion 4 is H and the distance from the top to the bottom of the inner wall of the outflow portion 4 is L2, the relationship of the following equation (1) is satisfied. Therefore, in the fluid that has flowed in from the inflow part 3, the first foreign matter having a higher specific gravity than the fluid, such as iron rust, gathers in the lower part of the trap 2 due to gravitational sedimentation. In the separating part 5, the inside fluid flowing inside the separating part 5 and the outside fluid flowing outside the separating part 5 are separated, and the second foreign matters such as air bubbles, which have a lower specific gravity than the fluid, gather in the inside fluid and have a higher specific gravity. The outer fluid from which the first foreign matter and the second foreign matter having a low specific gravity have been removed can flow out from the outflow portion 4 .
L1≧H≧L2 (1)
　トラップ２は、図１に示してあるように、異物除去装置１の垂直方向において、流入部３が接続される位置よりも下方部分で下方に行くほど縮径するテーパ状に構成してある。このような縮径テーパ状構造によって、重力沈降した比重の重い第１異物が流体の動きによって巻き上げられる事態を抑制することが可能となる。 As shown in FIG. 1, the trap 2 is tapered in the vertical direction of the contaminant removing apparatus 1 so that its diameter decreases downward at a portion below the position where the inflow portion 3 is connected. Such a diameter-reduced tapered structure makes it possible to prevent the gravity-settled first foreign matter having a high specific gravity from being lifted up by the motion of the fluid.
　第１異物捕捉部６は、鉄錆等の流体より比重の重い第１異物を捕捉するための構成要素である。第１異物捕捉部６は、具体的には、トラップ２の縮径テーパ状構造の下方に設けられたスペースである。第１異物捕捉部６は、重力沈降した比重の重い第１異物を当スペース内に捕捉する。第１異物捕捉部６の鉛直下方には、第１異物排出手段７が設けてある。 The first contaminant capturing part 6 is a component for capturing the first contaminant, such as iron rust, which has a higher specific gravity than the fluid. Specifically, the first foreign matter trapping portion 6 is a space provided below the diameter-reduced tapered structure of the trap 2 . The first contaminant capturing section 6 captures the first contaminant having a high specific gravity that has settled due to gravity in the space. A first foreign object discharging means 7 is provided vertically below the first foreign object capturing section 6 .
　第１異物排出手段７は、第１異物捕捉部６に補足された比重の重い第１異物を排出するための構成要素である。第１異物排出手段７は、例えばバルブであり、開放状態とすることによって第１異物捕捉部６に補足された比重の重い第１異物を外部に排出する。第１異物排出手段７を備えることによって、異物除去装置１の使用期間が長くなって第１異物捕捉部６のスペースに第１異物が捕捉された場合においても、第１異物捕捉部６の捕捉量を減少させることで再び有効に捕捉することが可能となる。 The first contaminant discharging means 7 is a component for discharging the first contaminant having a high specific gravity captured by the first contaminant capturing portion 6 . The first foreign matter discharge means 7 is, for example, a valve, and when it is in an open state, it discharges the first foreign matter with a heavy specific gravity captured by the first foreign matter capturing portion 6 to the outside. By providing the first foreign matter discharging means 7, even if the first foreign matter is caught in the space of the first foreign matter capturing portion 6 due to the long usage period of the foreign matter removing device 1, the first foreign matter capturing portion 6 does not catch the first foreign matter. Reducing the amount enables effective capture again.
　第２異物捕捉部８は、気泡のような流体よりも比重の軽い第２異物を捕捉するための構成要素である。第２異物捕捉部８は、具体的には、図１に示してあるように、分離部５の鉛直上方であって、上述したＬ１に係るトラップ２の内壁の最上部の上方に設けられたスペースである。このような構成によって、分離部５によって分離され内側流体の第２異物が効率良く第２異物捕捉部８のスペースに捕捉され得る。第２異物捕捉部８の鉛直上方には、第２異物排出手段９が設けてある。 The second contaminant capturing section 8 is a component for capturing a second contaminant, such as air bubbles, which has a lower specific gravity than the fluid. Specifically, as shown in FIG. 1, the second foreign object capturing section 8 is vertically above the separation section 5 and provided above the uppermost part of the inner wall of the trap 2 related to L1 described above. Space. With such a configuration, the second foreign matter separated by the separating portion 5 and contained in the inner fluid can be efficiently caught in the space of the second foreign matter capturing portion 8 . A second foreign object discharging means 9 is provided vertically above the second foreign object capturing section 8 .
　第２異物排出手段９は、第２異物捕捉部８に補足された比重の軽い第２異物を排出するための構成要素である。第２異物排出手段９は、例えば空気弁であり、開放状態とすることによって第２異物捕捉部８に補足された比重の軽い第２異物を外部に排出する。第２異物排出手段９を備えることによって、異物除去装置１の使用期間が長くなって第２異物捕捉部８のスペースに第２異物が捕捉された場合においても、第２異物捕捉部８の捕捉量を減少させることで再び有効に捕捉することが可能となる。 The second contaminant discharging means 9 is a component for discharging the second contaminant having a low specific gravity captured by the second contaminant capturing portion 8 . The second foreign matter discharging means 9 is, for example, an air valve, and when opened, discharges the second foreign matter having a low specific gravity captured by the second foreign matter trapping portion 8 to the outside. By providing the second foreign matter discharging means 9, even if the second foreign matter is trapped in the space of the second foreign matter catching portion 8 due to a long usage period of the foreign matter removing device 1, the second foreign matter catching portion 8 does not catch the second foreign matter. Reducing the amount enables effective capture again.
　第２異物捕捉部８が捕捉した気泡は、集まることによって気泡同士が結合して空気となり得る。第２異物捕捉部８で生じた空気が再び流体内に気泡として再流出することを抑制するため、第２異物捕捉部８の水平方向の内径は、分離部５部の水平方向の内径よりも小さくなるように構成してある。 The bubbles captured by the second foreign matter capturing section 8 can be combined to form air by gathering together. In order to prevent the air generated in the second foreign matter trapping portion 8 from re-outflowing into the fluid as air bubbles, the horizontal inner diameter of the second foreign matter trapping portion 8 is set larger than the horizontal inner diameter of the separating portion 5 . It is designed to be small.
１．異物除去装置、２．トラップ、３．流入部、４．流出部、５．分離部、６．第１異物捕捉部、７．第１異物排出手段、８．第２異物捕捉部、９．第２異物排出手段 1. foreign matter removing device;2. trap;3. 3. inlet; 4. outflow; 6. Separation section; 7. first foreign matter capturing portion; 8. first foreign matter discharging means; 9. a second foreign matter capturing portion; Second foreign matter discharging means

Claims (5)

  1. 　配管内の流体に含まれる異物をトラップ部内の旋回流を用いて除去する異物除去装置において、
    　　前記流体を前記トラップ部内に流入させる流入部と、
    　　筒状構造を有し、前記流入部から流入した前記流体を前記筒状構造の内側を流れる前記旋回流の内側流体と前記筒状構造の外側を流れる前記旋回流の外側流体とに分離する分離部と、
    　　前記分離部が分離した前記外側流体を前記トラップ部内から流出させる流出部と、
    　を備えることを特徴とする異物除去装置。     In a foreign matter removing device that removes foreign matter contained in a fluid in a pipe using a swirling flow in a trap,
    an inflow section for flowing the fluid into the trap section;
    Separation that has a tubular structure and separates the fluid that has flowed in from the inflow portion into an inner fluid of the swirling flow flowing inside the tubular structure and an outer fluid of the swirling flow flowing outside the tubular structure Department and
    an outflow portion that causes the outer fluid separated by the separation portion to flow out from the inside of the trap portion;
    A foreign matter removing device comprising:
  2. 　前記流出部は、前記分離部の前記外側に対向するように配置してある
    　ことを特徴とする請求項１に記載の異物除去装置。     The foreign matter removing device according to claim 1, wherein the outflow section is arranged to face the outside of the separation section.
  3. 　前記流出部は、前記流入部よりも上方に配置してある
    　ことを特徴とする請求項１または２に記載の異物除去装置。     3. The foreign matter removing apparatus according to claim 1, wherein the outflow section is arranged above the inflow section.
  4. 　前記流体に含まれ前記流体よりも比重の軽い第２異物を補足する第２異物捕捉部を前記分離部の上方に備え、
    　前記流出部は、前記第２異物が除去された前記流体を前記トラップ部内から流出させる
    　ことを特徴とする請求項１～３のいずれか１項に記載の異物除去装置。     a second foreign matter trapping section above the separating section for capturing second foreign matter contained in the fluid and having a lower specific gravity than the fluid;
    The foreign matter removing apparatus according to any one of claims 1 to 3, wherein the outflow portion causes the fluid from which the second foreign matter has been removed to flow out from the inside of the trap portion.
  5. 　前記流体に含まれ前記流体よりも比重の重い第１異物を補足する第１異物捕捉部を前部トラップ部の下方に備え、
    　前記流出部は、前記第１異物および前記第２異物が除去された前記流体を前記トラップ部内から流出させる
    　ことを特徴とする請求項４に記載の異物除去装置。     a first foreign matter trapping portion below the front trap portion for capturing a first foreign matter contained in the fluid and having a higher specific gravity than the fluid;
    5. The foreign matter removing apparatus according to claim 4, wherein the outflow portion causes the fluid from which the first foreign matter and the second foreign matter have been removed to flow out from the inside of the trap portion.
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JPS54128060A (en) * 1978-03-28 1979-10-04 Ereko Kk Method of separating solid heavy minute foreign matter and light minute foreign matter from liquid and its device
JPH06198110A (en) * 1992-12-28 1994-07-19 Gijutsu Kaihatsu Sogo Kenkyusho:Kk Gas-liquid separator
JPH06319921A (en) * 1993-05-18 1994-11-22 Sanshin Seisakusho:Kk Solid-liquid separator
JPH079401U (en) * 1993-07-22 1995-02-10 シェルテック有限会社 Hopper type sedimentation device
JP2003164774A (en) * 2001-12-03 2003-06-10 Miike Iron Works Co Ltd Washing and specific gravity separation apparatus in liquid
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