JP4647834B2

JP4647834B2 - Gas-liquid separator with drainage valve

Info

Publication number: JP4647834B2
Application number: JP2001144580A
Authority: JP
Inventors: 武志横山
Original assignee: Tlv Co Ltd
Current assignee: Tlv Co Ltd
Priority date: 2001-05-15
Filing date: 2001-05-15
Publication date: 2011-03-09
Anticipated expiration: 2021-05-15
Also published as: JP2002340290A

Description

【０００１】
【発明の属する技術分野】
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し、分離した液体を排液弁によって排出する排液弁を備えた気液分離器に関する。
【０００２】
【従来の技術】
従来の排液弁を備えた気液分離器は、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に排液弁を配置し、旋回室と排液弁室の間に隔壁部材を配置し、隔壁部材の外周縁とケーシングの内周壁との間に液体通過用の隙間を形成したものである。この一例が実公昭６３−２４３１８号公報に示されている。
【０００３】
【発明が解決しようとする課題】
上記従来技術の排液弁を備えた気液分離器においては、流入してくる流体の速度によっては、すなわち、流速が速い場合には、旋回室の中央よりを旋回している微小な液体が隔壁部材の上面に衝突して跳ね返る気体に再び巻き込まれて出口に運び出されてしまう問題点があった。
【０００４】
従って、本発明の技術的課題は、微小な液体が気体に再び巻き込まれて出口に運び出されないようにすることである。
【０００５】
【課題を解決するための手段】
上記の技術的課題を解決するために講じた本発明の技術的手段は、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に排液弁を配置し、旋回室と排液弁室の間に隔壁部材を配置し、隔壁部材の外周縁とケーシングの内周壁との間に液体通過用の隙間を形成したものにおいて、ケーシングを貫通して上下に変位可能に操作部材を配置し、操作部材に隔壁部材を連結し、操作部材を外部から操作して隔壁部材の位置を上下に可変とすることを特徴とする排液弁を備えた気液分離器にある。
【０００６】
【発明の実施の形態】
上記の本発明の技術的手段によれば、流速が速い場合には、隔壁部材の位置を下方に調整することによって、隔壁部材の上面に衝突して跳ね返る気体の流速を低下させることができるので、旋回室の中央よりを旋回している微小な液体が出口に運び出されてしまうことを防ぐことができる。流速が遅い場合には、隔壁部材の位置を上方に調整することによって、排液弁室を広くすることができる。
【０００７】
【実施例】
上記の技術的手段の具体例を示す実施例を説明する（図１乃至図２参照）。ケーシングは上本体１に下本体２を溶接し、上本体１に出入口部材３を溶接すると共に下本体２に底蓋４をボルトで締結して形成する。出入口部材３は左右に入口５と出口６を有し、入口５に入口フランジ７を溶接し、出口６に出口フランジ８を溶接する。底蓋４は排液口９を有し、排液口９は排液弁座１０に開けた排液弁口１１から連通する。
【０００８】
上本体１は円筒形状で上部内面の直径を大きく形成する。上本体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１２を載せ、排気管１２を出入口部材３との間で固定する。排気管１２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上本体１で兼用することもできる。排気管１２の内側円筒は上部と下部が緩やかに拡がった形状である。排気管１２の内外円筒の間に形成される環状空間１３に、排気管１２と一体に旋回羽根１４を形成する。
【０００９】
入口４は連通孔１５を通して下方の環状空間１３に連結し、排気管１２の内側円筒の内側は上方の出口６に連結する。上本体１の下部内面と底蓋４の内面との間に旋回室１６と、旋回室１６の下方に排液弁室１７を形成し、排液弁室１７に排液弁としての中空球形の弁フロート１９を配置する。弁フロート１９は液位に応じて浮上降下して排液弁座１０の排液弁口１１を開閉し、液体を排液口９から系外に排出する。
【００１０】
出入口部材３の上壁にプラグ１８をねじ結合し、プラグ１８に出入口部材３を貫通する操作部材２０をねじ結合する。操作部材２０の上端にナット部２１を形成する。操作部材２０と出入口部材３及びプラグ１８との間に気密保持用のパッキング２２を介在させる。操作部材２０は下端が上本体１の下端付近まで伸び、下端に旋回室１６と排液弁室１７とを隔てる隔壁部材２３をナット２４で固定する。隔壁部材２３は円板形状で外周に４個の突起２５を有する。突起２５の間の隔壁部材２３外周縁と上本体１内周壁との間に液体通過用隙間２６を形成する。ナット部２１を回動して操作部材２０を上下に変位させることにより、隔壁部材２３を上下に変位させる。
【００１１】
ナット部２１を回動して、流入してくる流体の流速が速い場合には、隔壁部材２３の位置を下方に調整し、流速が遅い場合には、隔壁部材２３の位置を上方に下方に調整する。入口５から入った液体を含む気体は旋回羽根１４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、上本体１の内周壁に沿って流下し、突起２５の間の液体通過用隙間２６を通って排液弁室１７に流入する。排液弁室１７に流入した液体は弁フロート１９の浮上降下によって自動的に排液口９から系外に排出される。排気管１２の下端を通過した気体は排気管１２の内側円筒の内側を通って出口６から流出する。流速が速い場合には、隔壁部材２３の位置を下方に調整することによって、隔壁部材２３の上面に衝突して跳ね返る気体の流速を低下させることができるので、旋回室１６の中央よりを旋回している微小な液体が出口６に運び出されてしまうことを防ぐことができる。流速が遅い場合には、隔壁部材２３の位置を上方に調整することによって、排液弁室１７を広くすることができる。
【００１２】
【発明の効果】
上記のように本発明によれば、流速が速い場合には、隔壁部材の位置を下方に調整することによって、旋回室の中央よりを旋回している微小な液体が出口に運び出されてしまうことを防ぐことができ、流速が遅い場合には、隔壁部材の位置を上方に調整することによって、排液弁室を広くすることができると言う優れた効果を生じる。
【図面の簡単な説明】
【図１】本発明の排液弁を備えた気液分離器の断面図。
【図２】図１のＡ−Ａ断面図。
【符号の説明】
１上本体
２下本体
３出入口部材
４底蓋
５入口
６出口
９排液口
１０排液弁座
１１排液弁口
１２排気管
１３環状空間
１４旋回羽根
１６旋回室
１７排液弁室
１８プラグ
１９弁フロート
２０操作部材
２１ナット部
２３隔壁部材
２５突起
２６液体通過用隙間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a condensate or condensed water mixed in a gas such as steam, compressed air or various gases, causing a swirl flow in the casing to separate the liquid by centrifugal force, and the separated liquid to be a drain valve The present invention relates to a gas-liquid separator equipped with a drainage valve that discharges by the above.
[0002]
[Prior art]
A gas-liquid separator equipped with a conventional drainage valve has swirl vanes arranged in an annular space formed by a casing and an exhaust pipe, and the upper part of the annular space is connected to an inlet, and the upper part is passed through a hole inside the exhaust pipe. Connected to the outlet, a swirling chamber is formed below the annular space, and a drain valve chamber is formed below the swirling chamber, and a drain valve is disposed in the drain valve chamber, and between the swirling chamber and the drain valve chamber. A partition member is disposed, and a liquid passage gap is formed between the outer peripheral edge of the partition member and the inner peripheral wall of the casing. An example of this is shown in Japanese Utility Model Publication No. 63-24318.
[0003]
[Problems to be solved by the invention]
In the gas-liquid separator equipped with the above-described prior art drain valve, depending on the speed of the fluid flowing in, that is, when the flow velocity is high, a minute liquid swirling from the center of the swirl chamber is present. There was a problem that the gas rebounds by being collided with the upper surface of the partition wall member and is carried back to the outlet.
[0004]
Therefore, the technical problem of the present invention is to prevent the minute liquid from being re-entrained in the gas and carried out to the outlet.
[0005]
[Means for Solving the Problems]
The technical means of the present invention devised to solve the above technical problem is to arrange a swirl vane in an annular space formed by a casing and an exhaust pipe, connect the upper part of the annular space to an inlet, The upper part is connected to the outlet through the hole, a swirling chamber is formed below the annular space, a drain valve chamber is formed below the swirl chamber, and a drain valve is disposed in the drain valve chamber. A partition member is disposed between the liquid valve chambers, and a liquid passage gap is formed between the outer peripheral edge of the partition member and the inner peripheral wall of the casing. The gas-liquid separator provided with a drainage valve is characterized in that the partition member is disposed and connected to the operation member, and the operation member is operated from outside to change the position of the partition member up and down.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
According to the above technical means of the present invention, when the flow rate is high, the flow rate of the gas that collides with the upper surface of the partition member and rebounds can be reduced by adjusting the position of the partition member downward. The minute liquid swirling from the center of the swirl chamber can be prevented from being carried out to the outlet. When the flow rate is slow, the drain valve chamber can be widened by adjusting the position of the partition member upward.
[0007]
【Example】
An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 and 2). The casing is formed by welding the lower body 2 to the upper body 1, welding the inlet / outlet member 3 to the upper body 1, and fastening the bottom lid 4 to the lower body 2 with bolts. The inlet / outlet member 3 has an inlet 5 and an outlet 6 on the left and right sides, and an inlet flange 7 is welded to the inlet 5 and an outlet flange 8 is welded to the outlet 6. The bottom lid 4 has a drainage port 9, which communicates with a drainage valve port 11 opened in the drainage valve seat 10.
[0008]
The upper body 1 is cylindrical and has a large diameter on the upper inner surface. A double substantially cylindrical exhaust pipe 12 is mounted on an annular step between the upper inner surface and the lower inner surface of the upper body 1, and the exhaust pipe 12 is fixed between the inlet / outlet member 3. The outer cylinder of the exhaust pipe 12 is straight and formed lower than the inner cylinder. The outer cylinder can be omitted, and the upper main body 1 can also be used. The inner cylinder of the exhaust pipe 12 has a shape in which the upper part and the lower part are gently expanded. A swirl vane 14 is formed integrally with the exhaust pipe 12 in an annular space 13 formed between the inner and outer cylinders of the exhaust pipe 12.
[0009]
The inlet 4 is connected to the lower annular space 13 through the communication hole 15, and the inner side of the inner cylinder of the exhaust pipe 12 is connected to the upper outlet 6. A swirl chamber 16 is formed between the lower inner surface of the upper body 1 and the inner surface of the bottom lid 4, and a drain valve chamber 17 is formed below the swirl chamber 16. The drain valve chamber 17 has a hollow spherical shape as a drain valve. A valve float 19 is arranged. The valve float 19 rises and falls according to the liquid level, opens and closes the drain valve port 11 of the drain valve seat 10, and discharges the liquid from the drain port 9 to the outside of the system.
[0010]
The plug 18 is screwed to the upper wall of the entrance / exit member 3, and the operating member 20 penetrating the entrance / exit member 3 is screwed to the plug 18. A nut portion 21 is formed on the upper end of the operation member 20. An airtight packing 22 is interposed between the operation member 20 and the inlet / outlet member 3 and the plug 18. The operation member 20 has a lower end extending to the vicinity of the lower end of the upper body 1, and a partition wall member 23 that separates the swirl chamber 16 and the drain valve chamber 17 is fixed to the lower end with a nut 24. The partition member 23 has a disc shape and has four protrusions 25 on the outer periphery. A liquid passage gap 26 is formed between the outer peripheral edge of the partition wall member 23 between the protrusions 25 and the inner peripheral wall of the upper body 1. By rotating the nut portion 21 to displace the operation member 20 up and down, the partition member 23 is displaced up and down.
[0011]
When the flow rate of the inflowing fluid is high by rotating the nut portion 21, the position of the partition wall member 23 is adjusted downward, and when the flow rate is low, the position of the partition wall member 23 is set downward upward. adjust. The gas containing liquid entering from the inlet 5 is swirled by the swirl vanes 14. The liquid is swung out and separated by the action of centrifugal force, flows down along the inner peripheral wall of the upper body 1, and flows into the drain valve chamber 17 through the liquid passage gap 26 between the protrusions 25. The liquid flowing into the drain valve chamber 17 is automatically drained out of the system through the drain port 9 as the valve float 19 rises and falls. The gas that has passed through the lower end of the exhaust pipe 12 flows out from the outlet 6 through the inside of the inner cylinder of the exhaust pipe 12. When the flow rate is high, the flow rate of the gas that collides with the upper surface of the partition wall member 23 and rebounds can be reduced by adjusting the position of the partition wall member 23 downward. It is possible to prevent the minute liquid from being carried to the outlet 6. When the flow rate is low, the drain valve chamber 17 can be widened by adjusting the position of the partition member 23 upward.
[0012]
【The invention's effect】
As described above, according to the present invention, when the flow velocity is high, the minute liquid swirling from the center of the swirl chamber is carried out to the outlet by adjusting the position of the partition member downward. When the flow rate is low, an excellent effect is obtained that the drain valve chamber can be widened by adjusting the position of the partition member upward.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a gas-liquid separator equipped with a drainage valve of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper main body 2 Lower main body 3 Entrance / exit member 4 Bottom cover 5 Inlet 6 Outlet 9 Drain port 10 Drain valve seat 11 Drain valve port 12 Exhaust pipe 13 Annular space 14 Swivel blade 16 Swivel chamber 17 Drain valve chamber 18 Plug 19 Valve float 20 Operation member 21 Nut portion 23 Partition member 25 Projection 26 Liquid passage gap

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に排液弁を配置し、旋回室と排液弁室の間に隔壁部材を配置し、隔壁部材の外周縁とケーシングの内周壁との間に液体通過用の隙間を形成したものにおいて、ケーシングを貫通して上下に変位可能に操作部材を配置し、操作部材に隔壁部材を連結し、操作部材を外部から操作して隔壁部材の位置を上下に可変とすることを特徴とする排液弁を備えた気液分離器。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 a hole inside the exhaust pipe, and the swirl chamber and the lower part are connected to the lower part of the annular space. A drain valve chamber is formed below the swirl chamber, a drain valve is disposed in the drain valve chamber, a partition member is disposed between the swirl chamber and the drain valve chamber, and the outer peripheral edge of the partition member and the casing In the case where a gap for passing liquid is formed between the inner peripheral wall and the operation member is disposed so as to be vertically displaceable through the casing, the partition member is connected to the operation member, and the operation member is operated from the outside. A gas-liquid separator equipped with a drainage valve, wherein the position of the partition member is variable up and down.