JP2013202449A

JP2013202449A - Gas-liquid separator

Info

Publication number: JP2013202449A
Application number: JP2012071751A
Authority: JP
Inventors: Toshiyuki Seki; 利行関
Original assignee: TLV Co Ltd
Current assignee: TLV Co Ltd
Priority date: 2012-03-27
Filing date: 2012-03-27
Publication date: 2013-10-07

Abstract

PROBLEM TO BE SOLVED: To provide a gas-liquid separator for preventing minute liquids which flow down along the outer surface of an exhaust pipe from being carried to an outlet.SOLUTION: A swirl vane 12 is arranged in an annular space 11 formed between an outer cylinder and an inner cylinder of an exhaust pipe 10. The upper side of the annular space 11 is connected to an inlet 4, and the upper side is connected through the inside of the inner cylinder of the exhaust pipe 10 to an outlet 5. A swirl chamber 14 is formed at the lower side of the annular space 11, and a liquid storage chamber 15 is formed below the swirl chamber 14. A lower portion of the liquid storage chamber 15 is connected to a liquid discharge outlet 8. On an outer surface of the inner cylinder of the exhaust pipe 10, a plurality of longitudinal channels 20 are formed at roughly fixed intervals in the circumferential direction. Minute liquids which flow down along the outer surface of the exhaust pipe 10 gather in the plurality of longitudinal channels 20, become large and are distributed outside and separated, thereby preventing the minute liquids from being carried to the outlet 5 together with a gas stream.

Description

本発明は、蒸気や圧縮空気や各種ガス等の気体中に混入している復水や凝縮水等の液体をケーシング内に旋回流を起こして遠心力によって分離する気液分離器に関する。 The present invention relates to a gas-liquid separator that separates liquids such as condensate and condensed water mixed in gas such as steam, compressed air, and various gases by centrifugal force by causing a swirling flow in a casing.

従来の気液分離器は、例えば特許文献１に開示されている。これは、ケーシングと排気管で形成する環状空間に旋回羽根を配置し、環状空間の上方を入口に連結し、排気管の下端から内側の孔を通してその上方を出口に連結し、環状空間の下方に旋回室と該旋回室の下方に液溜室を形成して該液溜室の下部を排液口に連結し、旋回室と液溜室の間に隔壁部材を配置したものたものである。 A conventional gas-liquid separator is disclosed in Patent Document 1, for example. This is because the swirl vane is arranged in an annular space formed by the casing and the exhaust pipe, the upper part of the annular space is connected to the inlet, the upper part is connected to the outlet through the inner hole from the lower end of the exhaust pipe, and the lower part of the annular space is connected. A liquid storage chamber is formed under the swirl chamber and the swirl chamber, the lower part of the liquid storage chamber is connected to the drainage port, and a partition member is disposed between the swirl chamber and the liquid storage chamber. .

特開２００２−２８４２２JP2002-28422

上記従来の気液分離器は、入口から環状空間に入った流体を旋回羽根で旋回せしめて遠心力の作用で気体中の液体を外側に振り出し、この外側に振り出した液体を旋回室の内周壁に沿って流下させ液溜室内に流入させて排液口から排出し、液体の分離された気体を排気管の下端から排気管の内側の孔を通して出口に流出させるものであるが、外側に振り出された液体が旋回室の内周壁に沿って流下し難いために、再び気体流に巻き込まれて出口に運び出されてしまい、気液の分離効率が悪い問題点があった。 In the above conventional gas-liquid separator, the fluid that has entered the annular space from the inlet is swirled by swirling blades, and the liquid in the gas is spouted to the outside by the action of centrifugal force. The gas separated from the liquid is exhausted from the lower end of the exhaust pipe to the outlet through the inner hole of the exhaust pipe. Since the discharged liquid is difficult to flow down along the inner peripheral wall of the swirl chamber, the liquid is caught in the gas flow again and carried to the outlet, resulting in a problem of poor gas-liquid separation efficiency.

したがって本発明が解決しようとする課題は、外側に振り出された液体が旋回室の内周壁に沿って流下し易い気液分離器を提供することである。 Therefore, the problem to be solved by the present invention is to provide a gas-liquid separator in which the liquid spouted outward easily flows down along the inner peripheral wall of the swirl chamber.

上記の課題を解決するために、本発明の気液分離器は、ケーシングと排気管で形成する環状空間に旋回羽根を配置し、環状空間の上方を入口に連結し、排気管の下端から内側の孔を通してその上方を出口に連結し、環状空間の下方に旋回室と該旋回室の下方に液溜室を形成して該液溜室の下部を排液口に連結し、旋回室と液溜室の間に隔壁部材を配置したものにおいて、旋回室の内周壁が撥水性機能を有すると共に複数の縦向きの溝を有することを特徴とするものである。 In order to solve the above problems, the gas-liquid separator of the present invention has a swirl vane disposed in an annular space formed by a casing and an exhaust pipe, and an upper portion of the annular space is connected to an inlet, and the inner side from the lower end of the exhaust pipe. The upper part is connected to the outlet through the hole, the swirl chamber is formed below the annular space, the liquid reservoir chamber is formed below the swirl chamber, and the lower part of the liquid reservoir is connected to the drainage port. In the structure in which the partition member is disposed between the reservoirs, the inner peripheral wall of the swirl chamber has a water-repellent function and has a plurality of vertical grooves.

本発明は、旋回室の内周壁が撥水性機能を有すると共に複数の縦向きの溝を有することにより、外側に振り出された液体が旋回室の内周壁に沿って流下し易くなり、再び気体流に巻き込まれて出口に運び出されることがなくなり、気液の分離効率を高めることができるという優れた効果を生じる。 In the present invention, since the inner peripheral wall of the swirl chamber has a water-repellent function and has a plurality of vertical grooves, the liquid spouted to the outside can easily flow down along the inner peripheral wall of the swirl chamber. It is not caught in the flow and carried out to the outlet, and an excellent effect is obtained in that the gas-liquid separation efficiency can be increased.

本発明の実施の形態に係わる気液分離器の断面図である。It is sectional drawing of the gas-liquid separator concerning embodiment of this invention. 図１の旋回室を形成するケーシングの一部を半径方向に切断した断面図である。It is sectional drawing which cut | disconnected a part of casing which forms the turning chamber of FIG. 1 to radial direction.

以下、本発明の実施の形態について、図１乃至図２を参照して説明する。ケーシングは本体１に出入口部材２と底蓋３を夫々溶接して形成する。出入口部材２は左右に入口４と出口５を有し、入口４に入口フランジ６を溶接し、出口５に出口フランジ７を溶接する。底蓋３は下端中央に排液口８を有し、排液口８に排液管９を溶接する。本体１は円筒形状で上部内面の直径を大きく形成する。本体１の上部内面と下部内面との間の環状の段部に、二重のほぼ円筒形状の排気管１０を載せ、排気管１０を出入口部材２との間で固定する。排気管１０の外側円筒は真直ぐな形状で内側円筒よりも低く形成する。外側円筒は省略して本体１で兼用することもできる。排気管１０の内側円筒は上部が上方に向って緩やかに拡がり、下部が下方に向って緩やかに拡がった形状で、下端部が水切り部１６を成す。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. The casing is formed by welding the inlet / outlet member 2 and the bottom lid 3 to the main body 1. The inlet / outlet member 2 has an inlet 4 and an outlet 5 on the left and right sides, and an inlet flange 6 is welded to the inlet 4 and an outlet flange 7 is welded to the outlet 5. The bottom cover 3 has a drain port 8 at the center of the lower end, and a drain tube 9 is welded to the drain port 8. The main body 1 is cylindrical and has a large diameter on the upper inner surface. A double substantially cylindrical exhaust pipe 10 is placed on an annular step between the upper inner surface and the lower inner surface of the main body 1, and the exhaust pipe 10 is fixed between the inlet / outlet member 2. The outer cylinder of the exhaust pipe 10 is straight and formed lower than the inner cylinder. The outer cylinder can be omitted, and the main body 1 can also be used. The inner cylinder of the exhaust pipe 10 has a shape in which the upper part gently expands upward and the lower part gently expands downward, and the lower end part forms a draining part 16.

排気管１０の内外円筒の間に形成される環状空間１１に、排気管１０と一体に旋回羽根１２を形成する。入口４は連通孔１３を通して下方の環状空間１１に連結し、排気管１０の内側円筒の内側は上方の出口５に連結する。本体１の下部内面と底蓋３の内面との間に旋回室１４と、旋回室１４の下方に液溜室１５を形成し、液溜室１５の下端を排液口８に連結する。旋回室１４と液溜室１５とを隔てる隔壁部材１７を配置する。隔壁部材１７は円板形状で外周に複数個の突起１８を有する。突起１８の間の隔壁部材１７外周縁と本体１内周壁との間に液体通過用隙間１９を形成する。旋回室１４を形成する本体１の内周壁が撥水性機能を有すると共に内周壁がその周方向にほぼ一定の間隔で複数の縦向きの溝２０を有する。旋回室１４を形成する本体１の内周壁の撥水性機能は、内周壁の表面にテフロン（登録商標）等の弗素樹脂の撥水材料を被覆したり内周壁の表面を研磨したりすることにより付与することができる。溝２０は断面をコ字状や台形状や三角形状や半円状に形成することができる。 A swirl vane 12 is formed integrally with the exhaust pipe 10 in an annular space 11 formed between the inner and outer cylinders of the exhaust pipe 10. The inlet 4 is connected to the lower annular space 11 through the communication hole 13, and the inner side of the inner cylinder of the exhaust pipe 10 is connected to the upper outlet 5. A swirl chamber 14 is formed between the lower inner surface of the main body 1 and the inner surface of the bottom lid 3, and a liquid reservoir chamber 15 is formed below the swirl chamber 14, and the lower end of the liquid reservoir chamber 15 is connected to the drainage port 8. A partition member 17 that separates the swirl chamber 14 and the liquid reservoir chamber 15 is disposed. The partition member 17 has a disk shape and has a plurality of protrusions 18 on the outer periphery. A liquid passage gap 19 is formed between the outer peripheral edge of the partition wall member 17 between the protrusions 18 and the inner peripheral wall of the main body 1. The inner peripheral wall of the main body 1 forming the swirl chamber 14 has a water repellency function, and the inner peripheral wall has a plurality of vertical grooves 20 at substantially constant intervals in the circumferential direction. The water repellent function of the inner peripheral wall of the main body 1 forming the swirl chamber 14 is obtained by coating the surface of the inner peripheral wall with a water-repellent material such as Teflon (registered trademark) or by polishing the surface of the inner peripheral wall. Can be granted. The groove 20 can have a U-shaped, trapezoidal, triangular or semicircular cross section.

入口４から入った液体を含む気体は旋回羽根１２で旋回せしめられる。液体は遠心力の作用で外側に振り出されて分離され、旋回室１４を形成する本体１の内周壁に沿って流下し、突起１８の間の液体通過用隙間１９を通って液溜室１５に流入する。旋回室１４を形成する本体１の内周壁に沿って流下する液体は撥水性機能を有する旋回室１４の内周壁により流下し易く、複数の縦向きの溝２０に集まり大きくなって速やかに液溜室１５に流入する。液溜室１５に流入した液体は排液口８から系外に排出される。排気管１０の下端を通過した気体は排気管１０の内側円筒の内側を通って出口５から流出する。 The gas containing liquid entering from the inlet 4 is swirled by the swirl vanes 12. The liquid is swung out and separated by the action of centrifugal force, flows down along the inner peripheral wall of the main body 1 forming the swirl chamber 14, passes through the liquid passage gap 19 between the protrusions 18, and is stored in the liquid reservoir chamber 15. Flow into. The liquid that flows down along the inner peripheral wall of the main body 1 forming the swirl chamber 14 easily flows down by the inner peripheral wall of the swirl chamber 14 having a water-repellent function, and gathers in a plurality of vertical grooves 20 to quickly become a liquid reservoir. It flows into the chamber 15. The liquid that has flowed into the liquid storage chamber 15 is discharged out of the system from the liquid discharge port 8. The gas that has passed through the lower end of the exhaust pipe 10 flows out from the outlet 5 through the inside of the inner cylinder of the exhaust pipe 10.

本発明は、蒸気や圧縮空気や各種ガス等の気体中に混入している復水や凝縮水等の液体をケーシング内に旋回流を起こして遠心力によって分離する気液分離器に利用することができる。 INDUSTRIAL APPLICABILITY The present invention is used for a gas-liquid separator that separates liquids such as condensate and condensed water mixed in a gas such as steam, compressed air, and various gases by causing a swirl flow in the casing and centrifugal force. Can do.

１本体
２出入口部材
３底蓋
４入口
５出口
８排液口
１０排気管
１１環状空間
１２旋回羽根
１４旋回室
１５液溜室
１７隔壁部材
１８突起
１９液体通過用隙間
２０縦向きの溝 DESCRIPTION OF SYMBOLS 1 Main body 2 Entrance / exit member 3 Bottom cover 4 Inlet 5 Outlet 8 Drain outlet 10 Exhaust pipe 11 Annular space 12 Swivel blade 14 Swivel chamber 15 Reservoir chamber 17 Partition member 18 Protrusion 19 Liquid passage gap 20 Vertical groove

Claims

ケーシングと排気管で形成する環状空間に旋回羽根を配置し、環状空間の上方を入口に連結し、排気管の下端から内側の孔を通してその上方を出口に連結し、環状空間の下方に旋回室と該旋回室の下方に排液弁室を形成して該排液弁室の下部を排液口に連結したものにおいて、排気管の外表面に複数の縦向きの溝を形成したことを特徴とする気液分離器。 A swirl vane is arranged in an annular space formed by a casing and an exhaust pipe, the upper part of the annular space is connected to the inlet, the upper part is connected to the outlet through the inner hole from the lower end of the exhaust pipe, and the swirl chamber is located below the annular space. A drain valve chamber is formed below the swirl chamber, and a lower portion of the drain valve chamber is connected to a drain port, and a plurality of vertical grooves are formed on the outer surface of the exhaust pipe. Gas-liquid separator.