JP2001070706A - Defoaming apparatus - Google Patents
Defoaming apparatusInfo
- Publication number
- JP2001070706A JP2001070706A JP24994199A JP24994199A JP2001070706A JP 2001070706 A JP2001070706 A JP 2001070706A JP 24994199 A JP24994199 A JP 24994199A JP 24994199 A JP24994199 A JP 24994199A JP 2001070706 A JP2001070706 A JP 2001070706A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- resin
- tank
- defoaming
- high viscosity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、脱泡装置に関す
る。The present invention relates to a defoaming device.
【０００２】[0002]
【従来の技術】従来、液体内に混入した気泡を取り除く
装置としては、液体を貯える槽を減圧することにより、
槽内部の液体を脱泡するものが知られている。2. Description of the Related Art Conventionally, as a device for removing air bubbles mixed in a liquid, a tank for storing the liquid is depressurized,
What degass the liquid in a tank is known.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来の脱法
装置では、槽の底部付近の深いところにある気泡が表面
まで浮上する速度が遅く、減圧だけで液体から気泡を充
分に取り除くためには長時間を要するという課題があっ
た。また、液体の粘度が高くなる程、脱法に要する時間
は長くなるという課題もあった。このような課題を解決
するために、攪拌により、槽の底部付近の液体を表面ま
で循環させながら脱法する方法もあるが、液体が有機溶
剤を含む場合には、攪拌装置に防爆の工夫を要し、大掛
かりであった。By the way, in the conventional removing apparatus, the speed at which bubbles deep in the vicinity of the bottom of the tank float up to the surface is slow, and it takes a long time to sufficiently remove bubbles from the liquid only by reducing the pressure. There was a problem that it took time. There is also a problem that the higher the viscosity of the liquid, the longer the time required for the demolding. In order to solve such problems, there is a method in which the liquid near the bottom of the tank is circulated to the surface by stirring to remove the liquid.However, when the liquid contains an organic solvent, a device for explosion proof is required in the stirring device. And it was a big deal.
【０００４】本発明は、粘度の高い液体を、効率よく脱
泡する装置を提供することを目的とする。An object of the present invention is to provide an apparatus for efficiently defoaming a liquid having a high viscosity.
【０００５】[0005]
【課題を解決するための手段】本発明の脱泡装置は、槽
内部を減圧状態にして液体を脱泡する装置であって、投
入槽と１個以上の減圧槽からなり、落差および／または
減圧度の差により、高粘度の液体を落下および／または
移動しながら脱泡することを特徴とする。The defoaming apparatus of the present invention is an apparatus for defoaming a liquid by setting the inside of the tank to a reduced pressure state, comprising a charging tank and one or more depressurizing tanks. The method is characterized in that a high-viscosity liquid is defoamed while falling and / or moving due to the difference in the degree of pressure reduction.
【０００６】[0006]
【発明の実施の形態】本発明の脱泡装置は、たとえば、
図１に示すように、槽内部を減圧状態にして液体を脱泡
する装置であって、投入槽９と１個以上の減圧槽２から
なり、落差および／または減圧度の差により、高粘度の
液体３を落下および／または移動しながら脱泡すること
を特徴とする。この高粘度の液体は、エポキシ樹脂、ポ
リイミド樹脂、ポリポリアミド樹脂、不飽和ポリエステ
ル樹脂、フェノール樹脂、フッ素樹脂などを、メチルエ
チルケトン、アセトン、メチレングリコール、スチレン
などの溶剤に溶解した樹脂ワニスがあり、その高粘度樹
脂ワニスの粘度は、０．０７〜０．１５Ｐａ・ｓ、好ま
しくは０．０９〜０．１１Ｐａ・ｓの範囲で用いられ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The defoaming device of the present invention
As shown in FIG. 1, a device for defoaming a liquid by setting the inside of the tank to a reduced pressure state, comprising a charging tank 9 and one or more reduced pressure tanks 2, and having a high viscosity due to a difference in head and / or degree of reduced pressure. The liquid 3 is defoamed while falling and / or moving. This high-viscosity liquid is a resin varnish obtained by dissolving an epoxy resin, a polyimide resin, a polypolyamide resin, an unsaturated polyester resin, a phenol resin, a fluororesin, and the like in a solvent such as methyl ethyl ketone, acetone, methylene glycol, and styrene. The viscosity of the high-viscosity resin varnish is used in the range of 0.07 to 0.15 Pa · s, preferably 0.09 to 0.11 Pa · s.
【０００７】減圧槽２には、このような高粘度の樹脂ワ
ニスなどの液体３を供給する液体供給口４、液体３を排
出する液体排出口５、槽内の空気を排出する空気排出出
口６を備え、減圧ポンプ７により、減圧槽２の内部は減
圧状態となるようにされていて、この減圧下で液体３を
脱泡するようになっている。減圧の程度は、この減圧ポ
ンプ７の回転数と、減圧ポンプ７と減圧槽２の間に設け
た減圧バルブ８１の開度で制御することができる。この
減圧の程度は、減圧ポンプの性能により異なるが、１〜
１００ｍｍＨｇであることが好ましい。液体供給口４の
手前には、バルブ８が設けられ、そのバルブ８の開度を
調整して、投入槽９に蓄えた液体３を、少量ずつ減圧槽
２に取り込み、液体３は、減圧槽２の内壁をつたいなが
ら脱泡され、減圧槽２に蓄積される。また、投入槽９内
にはレベルセンサ１０を設け、バルブ８を電磁弁とし
て、投入槽９内の液体３が、あるレベルを下回って少な
くなったときに、バルブ８を閉じるように制御すれば、
減圧槽２への空気が混入するのを防ぐことができ好まし
い。この減圧槽２は、１つでも脱法できるが、図に示す
ように、２つ並列に使用すれば、同時に脱泡を進めるこ
とができ、効率的である。減圧槽２への液体３の供給量
は、投入槽９と減圧槽２の高さの差と、液体３の比重、
および減圧槽２の減圧の程度により制御することがで
き、減圧槽２を並列に設けたときに、それぞれの減圧槽
２の供給側に供給バルブを設ければ、その供給バルブの
開度によっても、液体３の供給量を制御することができ
る。減圧槽２の出口に出力バルブ８３を設けて、脱泡さ
れた液体３を必要な量取り出すようにすれば、減圧槽２
の蓋を開いて液体３を上から取り出す必要がなく好まし
い。また、図２に示すように、減圧槽２をシリーズに接
続してもよく、脱泡を２度行うことで、より脱泡を効率
よく行うことができる。最後の脱泡装置を、塗工機に接
続すれば、脱泡装置が、塗工機へのワニス供給装置を兼
ねることもできる。The decompression tank 2 has a liquid supply port 4 for supplying a liquid 3 such as a high-viscosity resin varnish, a liquid discharge port 5 for discharging the liquid 3, and an air discharge port 6 for discharging air in the tank. The inside of the decompression tank 2 is set in a decompression state by the decompression pump 7, and the liquid 3 is defoamed under the decompression. The degree of the pressure reduction can be controlled by the rotation speed of the pressure reduction pump 7 and the opening degree of the pressure reduction valve 81 provided between the pressure reduction pump 7 and the pressure reduction tank 2. The degree of the decompression depends on the performance of the decompression pump.
Preferably, it is 100 mmHg. A valve 8 is provided in front of the liquid supply port 4, the opening degree of the valve 8 is adjusted, and the liquid 3 stored in the charging tank 9 is taken into the decompression tank 2 little by little. The defoaming is carried out while squeezing the inner wall of No. 2 and accumulated in the decompression tank 2. In addition, a level sensor 10 is provided in the charging tank 9, and the valve 8 is controlled as an electromagnetic valve so that the valve 8 is closed when the liquid 3 in the charging tank 9 falls below a certain level and decreases. ,
This is preferable because air can be prevented from being mixed into the decompression tank 2. Although one decompression tank 2 can be used for degassing, as shown in the figure, if two decompression tanks are used in parallel, degassing can be advanced simultaneously, which is efficient. The supply amount of the liquid 3 to the decompression tank 2 is determined by the difference in height between the charging tank 9 and the decompression tank 2, the specific gravity of the liquid 3,
And the degree of decompression of the decompression tank 2 can be controlled. If the decompression tanks 2 are provided in parallel and a supply valve is provided on the supply side of each decompression tank 2, it can be controlled by the degree of opening of the supply valve. , The supply amount of the liquid 3 can be controlled. An output valve 83 is provided at the outlet of the decompression tank 2 so that a required amount of the defoamed liquid 3 is taken out.
It is not necessary to open the lid and take out the liquid 3 from above. Further, as shown in FIG. 2, the decompression tank 2 may be connected in series, and by performing degassing twice, degassing can be performed more efficiently. If the last defoaming device is connected to a coating machine, the defoaming device can also serve as a varnish supply device to the coating machine.
【０００８】[0008]
【発明の効果】以上に説明したとおり、本発明によっ
て、粘度の高い液体を効率よく脱泡する装置を提供する
ことができる。As described above, the present invention can provide an apparatus for efficiently defoaming a liquid having a high viscosity.
【図１】本発明の位置実施例を示すブロック図である。FIG. 1 is a block diagram illustrating an embodiment of the present invention.
【図２】本発明の他の実施例を示すブロック図である。FIG. 2 is a block diagram showing another embodiment of the present invention.
２．減圧槽 ３．液体 ４．液体供給口 ５．液体排出口 ６．空気排出口 ７．減圧ポンプ ８．バルブ ８１．減圧バル
ブ ８２．供給バルブ ８３．出力バル
ブ ９．投入槽 １０．レベルセ
ンサ2. Decompression tank 3. Liquid 4. Liquid supply port 5. Liquid outlet 6. Air outlet 7. 7. Decompression pump Valve 81. Pressure reducing valve 82. Supply valve 83. Output valve 9. Input tank 10. Level sensor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 池羽 正和 茨城県下館市大字小川1500番地 日立化成 工業株式会社下館事業所内 Ｆターム(参考） 4D011 AA16 AB05 AB10 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masakazu Ikeba 1500 Ogawa, Oaza, Shimodate City, Ibaraki Prefecture F-term in Hitachi Chemical Industry Co., Ltd. Shimodate Office 4D011 AA16 AB05 AB10
Claims (1)
置であって、投入槽と１個以上の減圧槽からなり、落差
および／または減圧度の差により、高粘度の液体を落下
および／または移動しながら脱泡することを特徴とする
脱泡装置。An apparatus for defoaming a liquid by reducing the pressure inside a tank, comprising a charging tank and one or more pressure reducing tanks, wherein a high-viscosity liquid is dropped by a difference in head and / or degree of pressure reduction. And / or a defoaming device for defoaming while moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24994199A JP2001070706A (en) | 1999-09-03 | 1999-09-03 | Defoaming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24994199A JP2001070706A (en) | 1999-09-03 | 1999-09-03 | Defoaming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001070706A true JP2001070706A (en) | 2001-03-21 |
Family
ID=17200462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24994199A Pending JP2001070706A (en) | 1999-09-03 | 1999-09-03 | Defoaming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001070706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138849A (en) * | 2007-12-06 | 2009-06-25 | Nitto Denko Corp | Low pressure transportation method and low pressure transportation system for processing solution |
-
1999
- 1999-09-03 JP JP24994199A patent/JP2001070706A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138849A (en) * | 2007-12-06 | 2009-06-25 | Nitto Denko Corp | Low pressure transportation method and low pressure transportation system for processing solution |
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