JP3935995B2 - Oil-water separator - Google Patents

Oil-water separator Download PDF

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Publication number
JP3935995B2
JP3935995B2 JP20522996A JP20522996A JP3935995B2 JP 3935995 B2 JP3935995 B2 JP 3935995B2 JP 20522996 A JP20522996 A JP 20522996A JP 20522996 A JP20522996 A JP 20522996A JP 3935995 B2 JP3935995 B2 JP 3935995B2
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Japan
Prior art keywords
float
oil
outlet
water
reservoir
Prior art date
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Expired - Fee Related
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JP20522996A
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Japanese (ja)
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JPH1028802A (en
Inventor
正 小池
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Tlv Co Ltd
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Tlv Co Ltd
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Priority to JP20522996A priority Critical patent/JP3935995B2/en
Publication of JPH1028802A publication Critical patent/JPH1028802A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、油貯蔵タンク等において混入した水を自動的に分離し系外へ排出することのできる油水分離器に関する。
【0002】
【従来の技術】
従来の油水分離器としては、例えば、実開平3−83603号公報に示されたものがある。これは、分離器ケ―シング内に仕切壁を設け、油と水の中間の比重を有する中空フロ―トを配置して、このフロ―トに流出口を開閉する弁体を連結したもので、ケ―シング内の仕切壁部で分離した水を系外へ排出することができるものである。
【0003】
【発明が解決しようとする課題】
上記従来のものでは、分離器内への水の流入が少なく、油が主に流入してきた場合に、弁口を確実に閉止することができずに油を器外へ漏洩してしまう問題があった。すなわち、ケ―シング内の水が少なく仕切壁下端開口に油が達して、更に多量の油が流入してくるとフロ―トの重量は浮力でほとんど相殺されてしまい、流出口を確実に閉止することができず、油を器外へ漏洩排出してしまうのである。特に機械的振動が油水分離器に伝わるような箇所においては、その振動により更に流出口の閉止が不完全となり、多量の油が漏洩排出される。
【0004】
また上記従来のものでは、製品の運搬時にフロ―トが振動し、その振動が弁体を介して弁座部に伝えられることにより、弁体と弁座部の間にキズや変形を生じてしまい、更に油の漏洩を促進してしまう問題があった。
【0005】
油の種類によっては、特に可燃性の油や有毒な油が外部へ漏洩することは、危険を伴うために確実に防止しなければならないのである。
【0006】
従って本発明の技術的課題は、製品運搬時に弁体や弁座部が損傷することがないようにすると共に、流入してくる水の量が少ない場合であっても、水だけを排出して、油は器外へ漏洩排出することのない油水分離器を得ることである。
【0007】
【課題を解決するための手段】
上記の課題を解決するために講じた本発明の手段は、分離器ケーシングに油水の流入口と溜部と流出口を形成して、当該溜部内に流入した油水をそれぞれの比重差により分離し、溜部内に配置したフロートの浮上降下により流出口を開閉して、分離した水を器外へ排出するものにおいて、フロートの比重を水の比重より小さく油の比重より大きくして、フロートを溜部内に上下動自在な自由状態で配置し、当該フロートの下方部外表面で流出口を直接に開閉すると共に、フロートの下方部外表面と流出口が当接した場合に、フロートの下方部外表面と流出口の当接部のいずれか一方が、または双方が、弾性変形して当接するように、フロートの下方部外表面と流出口の当接部のいずれか一方または双方に弾性部材を取り付け、且つ、フロートの下方部外表面の降下位置に支持座を設けて、当該支持座の上端高さが、流出口の上端部より僅かに低くなるように配置したものである。
【0008】
【発明の実施の形態】
フロ―トの下方部外表面の降下位置と流出口の端部位置との間に僅かな段差を弾性部材を介して設けたことにより、製品運搬時にフロ―トが振動しても、フロ―トの振動は僅かな段差の範囲で且つ弾性部材を介して流出口側へ伝えられるために、双方の当接部が損傷することが防止される。
【0009】
ケ―シングの溜部内に流入してきた油水は、その比重差により水は下部に、油はその上部に分離して溜る。水がフロ―トの喫水線まで溜って初めてフロ―トが浮上して流出口を開口することにより水は器外へ排出される。
【0010】
水が排出されて喫水線が低下するとフロ―トは浮力が減少して降下し、その下方部外表面で流出口を直接に閉口することにより、所定量の水を溜部内に残したままで、その上部に溜っている油を漏洩することがない。
【0011】
また、フロ―ト外表面で流出口を閉口する場合、僅かな段差に相当する量だけ弾性部材が弾性変形して閉口することにより、流出口はより確実にシ―ルされて残留水及び油を漏洩することがない。
【0012】
フロ―トの比重を水の比重より小さく油の比重より大きくすることにより、フロ―トの全てが油の中に没した場合でもフロ―トは浮上することがなく、油を器外へ排出することはない。
【0013】
【実施例】
本発明の実施例について説明する。図1において、本体1と蓋2で分離器ケ―シングを形成して油水の溜部3を形成すると共に、蓋2に油水の流入口4を、本体1に流出口5を設けて油水分離器を構成する。
【0014】
溜部3は流入口4と連通すると共に、その空間部に縦長のフロ―ト6を自由状態で配置する。フロ―ト6は、有底円筒の縦長形状で、その下方部外表面7の中心部で流出口5を直接開閉するように、本体1に設けた複数のガイド8,9,10,11に沿って上下動自在に配置する。フロ―ト6はステンレス鋼薄板をプレスと溶接で中空フロ―トとして製作することも、あるいは、ポリプロピレンやポリエチレン等の比較的比重の小さな合成樹脂で製作することができる。フロ―ト6側に弾性部材を取り付ける場合は、流出口5と接触する下方部外表面7に合成ゴム等の弾性板状部材14を張り付ける。
【0015】
流出口5は、本体1にねじ結合した弁座部材12の中心を貫通して配置し、その下流側は出口13と連通する。弁座部材12すなわち流出口5側に弾性部材を取り付ける場合は、弁座部材12の上端部に流出口5の上部側面と上端外周面を覆うように弾性部材としての合成ゴム座15を略リング状に設ける。この合成ゴム座15を介して、フロ―ト6の下方部外表面7と当接するように配置する。
【0016】
図1はフロ―ト6が浮上している状態を示すものであるが、フロ―ト6の上部にはストッパ―26,27を設けると共に、フロ―ト6の下部には、フロ―ト6が降下した場合にフロ―ト6を支持する支持座16,17を設ける。この支持座16,17の上端高さは、流出口5の上端部より僅かに低くなるように、すなわち、図1において図示したHミリメ―トルだけ支持座16,17の上端が低くなるように形成して、僅かな段差Hを構成する。弾性部材の種類に応じて、段差Hの距離は適宜決定することができるが、合成ゴムを用いた本実施例においては0.1から0.5ミリメ―トル程度の段差が好ましい。
【0017】
支持座16,17によりフロ―ト6の下部と本体1の底部との間にスペ―ス18を形成して、ゴミ等の混入異物の溜りスペ―スとする。本体1の下部に分離器ケ―シングの脚部材19,20を取り付けると共に、バルブ21を介して溜部3と連通する均圧管22と、同じくバルブ23を介して溜部3と連通するブロ―管25を接続する。
【0018】
図1に示す状態は、フロ―ト6が上方へ浮上して流出口5を開口している状態を示す。流入口4から油水の混合流体が流入してきて溜部3内へ水は下部に油は上部に分離して溜る。流入してくる水の量が増えるに連れて溜部3内の水位も上昇し、縦長フロ―ト6の喫水線、通常はフロ―ト6の高さの2/3程度の位置、に達すると図1に示すようにフロ―ト6が浮上して、弁座部材12から離座して流出口5を開口することにより下部に溜った水が出口13から器外へ排出される。水が排出されて水位が低下するとフロ―ト6も同時に降下して、溜部3底部に水を残した状態で流出口5を閉口することにより、水の上部に溜った油を漏洩することがない。
【0019】
フロ―ト6が降下する場合、下方部外表面7の中心部に取り付けた弾性板状部材14と弁座部材12の上端の合成ゴム座15がまず当接し、それぞれの弾性部材が弾性変形をして、下方部外表面7が支持座16,17に当接することにより、確実に流出口5を閉止することができる。
【0020】
本実施例においては、製品の運搬時においても、すなわち、フロ―ト6が降下している状態でフロ―ト6に振動が加わった場合においても、支持座16,17を介してフロ―ト6を支持しているために、合成ゴム座15もしくは弾性板状部材14には僅かな段差Hに相当する弾性変形内の振幅の振動しか伝わらないために、フロ―ト6と流出口5の当接部の損傷が防止される。
【0021】
本実施例においては、フロ―ト6を円筒縦長状に形成したことにより、球状や角柱状の場合と比較して小さな空間でより大きな容積を確保することができ、フロ―ト6の重量もその容積と比例的に大きくすることができて流出口5を閉口した場合のシ―ル性を高めることができる。
【0022】
また本実施例においては、ブロ―管25を設けたことにより、出口13側に圧縮空気管や蒸気管等を接続してブロ―管25側へ流下させ、弁座部材12とフロ―ト6の下部スペ―ス18を逆洗ブロ―することができ、ゴミやヘドロ状の油水の混濁物を外部へ排除することができる。
【0023】
【発明の効果】
本発明の油水分離器では、フロ―ト下方部外表面の降下位置と流出口の端部位置の間に僅かな段差を弾性部材を介して設けたことにより、フロ―トの振動がその僅かな段差分に押えられて当接部が損傷することがないと共に、フロ―トの降下時に僅かな段差分だけ弾性部材が弾性変形して流出口を閉口することにより、油は漏洩排出することのない油水分離器を得ることができる。
【図面の簡単な説明】
【図1】本発明の油水分離器の実施例を示す断面図。
【符号の説明】
1 本体
2 蓋
3 溜部
4 流入口
5 流出口
6 フロ―ト
7 下方部外表面
12 弁座部材
13 出口
14 弾性板状部材
15 合成ゴム座
16,17 支持座
25 ブロ―管
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil-water separator capable of automatically separating water mixed in an oil storage tank or the like and discharging it out of the system.
[0002]
[Prior art]
An example of a conventional oil / water separator is disclosed in Japanese Utility Model Publication No. 3-83603. This is a partition wall provided in the separator casing, a hollow float having a specific gravity between oil and water is arranged, and a valve body for opening and closing the outlet is connected to this float. The water separated at the partition wall in the casing can be discharged out of the system.
[0003]
[Problems to be solved by the invention]
In the above conventional system, there is a problem that when there is little inflow of water into the separator and oil mainly flows in, the valve port cannot be closed reliably and the oil leaks outside the container. there were. In other words, if the amount of water in the casing is low and oil reaches the lower opening of the partition wall, and a large amount of oil flows in, the weight of the float is almost offset by buoyancy, and the outlet is securely closed. It cannot be done, and the oil leaks out of the vessel. In particular, at locations where mechanical vibrations are transmitted to the oil / water separator, the vibrations cause incomplete closing of the outlet and a large amount of oil leaks out.
[0004]
In the above-mentioned conventional products, the float vibrates when the product is transported, and the vibration is transmitted to the valve seat through the valve body, thereby causing scratches and deformation between the valve body and the valve seat. In addition, there is a problem that oil leakage is further promoted.
[0005]
Depending on the type of oil, leakage of flammable oil and toxic oil to the outside is dangerous and must be reliably prevented.
[0006]
Therefore, the technical problem of the present invention is to prevent the valve body and the valve seat portion from being damaged during product transportation, and to discharge only water even when the amount of water flowing in is small. It is to obtain an oil / water separator in which oil does not leak out of the vessel.
[0007]
[Means for Solving the Problems]
The means of the present invention devised to solve the above problems is to form an oil water inlet, a reservoir, and an outlet in the separator casing, and to separate the oil water flowing into the reservoir by the difference in specific gravity. In the case where the outlet is opened and closed by floating up and down of the float placed in the reservoir and the separated water is discharged outside the vessel, the float has a specific gravity smaller than the specific gravity of water and larger than the specific gravity of the oil. When the flow outlet is directly opened and closed on the outer surface of the lower part of the float, and when the outer surface of the lower part of the float is in contact with the outlet, the outside of the lower part of the float An elastic member is attached to either one or both of the lower outer surface of the float and the contact portion of the outlet so that either one or both of the surface and the contact portion of the outlet is elastically deformed and contacted. Mounting and float The support seat is provided on the lowered position of the lower outer surface, an upper end height of the support seat, in which are arranged to be slightly lower than the upper end of the outlet.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Even if the float vibrates during product transportation, a slight step is provided between the lowered position of the outer surface of the lower part of the float and the end position of the outlet through the elastic member. Since the vibration of the ridge is transmitted to the outflow port side through an elastic member within a range of a slight step, both contact portions are prevented from being damaged.
[0009]
The oil water that has flowed into the reservoir of the casing is separated and stored in the lower part and the oil in the upper part due to the difference in specific gravity. Only when the water reaches the float waterline, the float rises and opens the outlet, so that the water is discharged out of the vessel.
[0010]
When the water is discharged and the waterline is lowered, the float descends with the buoyancy decreased, and the outlet is directly closed at the outer surface of the lower part, so that a predetermined amount of water remains in the reservoir. There is no leakage of oil accumulated in the upper part.
[0011]
In addition, when the outlet is closed on the outer surface of the float, the outlet is more securely sealed by the elastic member being elastically deformed and closed by an amount corresponding to a slight level difference, so that residual water and oil can be sealed. Will not leak.
[0012]
By making the specific gravity of the float smaller than the specific gravity of water and greater than the specific gravity of oil, even if all of the float is submerged in the oil, the float will not float up and the oil will be discharged outside the vessel. Never do.
[0013]
【Example】
Examples of the present invention will be described. In FIG. 1, a separator casing is formed by a main body 1 and a lid 2 to form an oil-water reservoir 3, and an oil-water inlet 4 is provided in the lid 2 and an outlet 5 is provided in the main body 1 for oil-water separation. Configure the vessel.
[0014]
The reservoir 3 communicates with the inflow port 4 and a vertically long float 6 is disposed in a free state in the space. The float 6 has a vertically long shape with a bottomed cylinder, and is provided with a plurality of guides 8, 9, 10, 11 provided in the main body 1 so as to directly open and close the outlet 5 at the center of the lower outer surface 7. It can be moved up and down along. The float 6 can be manufactured as a hollow float by pressing and welding a stainless steel thin plate, or can be manufactured from a synthetic resin having a relatively low specific gravity such as polypropylene or polyethylene. When an elastic member is attached to the float 6 side, an elastic plate member 14 such as synthetic rubber is attached to the lower outer surface 7 in contact with the outlet 5.
[0015]
The outlet 5 is disposed through the center of the valve seat member 12 screwed to the main body 1, and its downstream side communicates with the outlet 13. When attaching an elastic member to the valve seat member 12, that is, the outflow port 5 side, a synthetic rubber seat 15 as an elastic member is attached to the upper end portion of the valve seat member 12 so as to cover the upper side surface and upper end outer peripheral surface of the outflow port 5. Provide in a shape. The synthetic rubber seat 15 is disposed so as to come into contact with the lower outer surface 7 of the float 6.
[0016]
FIG. 1 shows a state in which the float 6 is floating. Stoppers 26 and 27 are provided on the upper portion of the float 6, and the float 6 is disposed on the lower portion of the float 6. Support seats 16 and 17 are provided for supporting the float 6 in the case of the lowering. The upper end height of the support seats 16 and 17 is slightly lower than the upper end portion of the outlet 5, that is, the upper ends of the support seats 16 and 17 are lowered by the H millimeter shown in FIG. Form a slight step H. The distance of the step H can be determined as appropriate depending on the type of the elastic member, but in the present embodiment using synthetic rubber, a step of about 0.1 to 0.5 mm is preferred.
[0017]
A space 18 is formed between the lower portion of the float 6 and the bottom portion of the main body 1 by the support seats 16 and 17, and serves as a storage space for foreign matters such as dust. The separator casing legs 19 and 20 are attached to the lower part of the main body 1, and the pressure equalizing pipe 22 that communicates with the reservoir 3 through the valve 21 and the blower that communicates with the reservoir 3 through the valve 23. Connect the tube 25.
[0018]
The state shown in FIG. 1 shows a state in which the float 6 floats upward and opens the outlet 5. A mixed fluid of oil and water flows in from the inflow port 4 and the water is separated into the lower part 3 and the oil is separated into the upper part and accumulated in the reservoir 3. As the amount of inflowing water increases, the water level in the reservoir 3 rises and reaches the draft line of the vertical float 6, usually about 2/3 of the height of the float 6. As shown in FIG. 1, the float 6 floats up and leaves the valve seat member 12 to open the outlet 5, so that the water accumulated in the lower part is discharged from the outlet 13 to the outside. When water is discharged and the water level drops, the float 6 also descends at the same time, and by closing the outlet 5 with water remaining at the bottom of the reservoir 3, the oil accumulated at the top of the water is leaked. There is no.
[0019]
When the float 6 is lowered, the elastic plate member 14 attached to the center of the lower outer surface 7 and the synthetic rubber seat 15 at the upper end of the valve seat member 12 first come into contact with each other, and each elastic member undergoes elastic deformation. And the outflow port 5 can be closed reliably by the lower part outer surface 7 contacting the support seats 16 and 17.
[0020]
In this embodiment, even when the product is transported, that is, when vibration is applied to the float 6 while the float 6 is lowered, the float is provided via the support seats 16 and 17. 6 is supported by the synthetic rubber seat 15 or the elastic plate-like member 14 because only the amplitude vibration within the elastic deformation corresponding to the slight step H is transmitted to the synthetic rubber seat 15 or the elastic plate-like member 14. Damage to the contact portion is prevented.
[0021]
In this embodiment, the float 6 is formed in a vertically long cylindrical shape, so that a larger volume can be secured in a small space compared to the case of a spherical or prismatic shape, and the weight of the float 6 is also increased. It can be increased in proportion to the volume, and the sealing performance when the outlet 5 is closed can be improved.
[0022]
In this embodiment, since the blow pipe 25 is provided, a compressed air pipe, a steam pipe or the like is connected to the outlet 13 side to flow down to the blow pipe 25 side, so that the valve seat member 12 and the float 6 are flown. The lower space 18 can be back-washed and dust and sludge-like oily water turbidity can be removed to the outside.
[0023]
【The invention's effect】
In the oil / water separator according to the present invention, a slight step is provided between the descending position of the outer surface of the lower part of the float and the end part of the outlet through an elastic member, so that the vibration of the float is slightly reduced. The oil is leaked and discharged by the elastic member being elastically deformed by a slight level when the float is lowered and closing the outflow port. An oil-water separator free of water can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of an oil / water separator according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Reservoir part 4 Inlet 5 Outlet 6 Float 7 Lower part outer surface 12 Valve seat member 13 Outlet 14 Elastic plate member 15 Synthetic rubber seats 16 and 17 Support seat 25 Blow tube

Claims (1)

分離器ケーシングに油水の流入口と溜部と流出口を形成して、当該溜部内に流入した油水をそれぞれの比重差により分離し、溜部内に配置したフロートの浮上降下により流出口を開閉して、分離した水を器外へ排出するものにおいて、フロートの比重を水の比重より小さく油の比重より大きくして、フロートを溜部内に上下動自在な自由状態で配置し、当該フロートの下方部外表面で流出口を直接に開閉すると共に、フロートの下方部外表面と流出口が当接した場合に、フロートの下方部外表面と流出口の当接部のいずれか一方が、または双方が、弾性変形して当接するように、フロートの下方部外表面と流出口の当接部のいずれか一方または双方に弾性部材を取り付け、且つ、フロートの下方部外表面の降下位置に支持座を設けて、当該支持座の上端高さが、流出口の上端部より僅かに低くなるように配置したことを特徴とする油水分離器。An oil water inlet, a reservoir, and an outlet are formed in the separator casing, the oil and water flowing into the reservoir are separated by the difference in specific gravity of each, and the outlet is opened and closed by the floating rise and fall of the float arranged in the reservoir. In order to discharge the separated water outside the vessel, the float has a specific gravity smaller than that of water and larger than that of oil, and the float is placed in a free state in the reservoir so that it can freely move up and down. Open and close the outlet directly on the outer surface, and if the lower outer surface of the float and the outlet contact, either the lower outer surface of the float and the outlet contact part or both However, the elastic member is attached to one or both of the lower outer surface of the float and the abutment portion of the outlet so that it is elastically deformed, and the support seat is positioned at the lowered position of the lower outer surface of the float. Provide The upper end height of the seat is, oil-water separator, characterized in that arranged to be slightly lower than the upper end of the outlet.
JP20522996A 1996-07-15 1996-07-15 Oil-water separator Expired - Fee Related JP3935995B2 (en)

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JP20522996A JP3935995B2 (en) 1996-07-15 1996-07-15 Oil-water separator

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Application Number Priority Date Filing Date Title
JP20522996A JP3935995B2 (en) 1996-07-15 1996-07-15 Oil-water separator

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Publication Number Publication Date
JPH1028802A JPH1028802A (en) 1998-02-03
JP3935995B2 true JP3935995B2 (en) 2007-06-27

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JP20522996A Expired - Fee Related JP3935995B2 (en) 1996-07-15 1996-07-15 Oil-water separator

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JPH1028802A (en) 1998-02-03

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