JPH079443U - Dielectric filter - Google Patents
Dielectric filterInfo
- Publication number
- JPH079443U JPH079443U JP4590993U JP4590993U JPH079443U JP H079443 U JPH079443 U JP H079443U JP 4590993 U JP4590993 U JP 4590993U JP 4590993 U JP4590993 U JP 4590993U JP H079443 U JPH079443 U JP H079443U
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- oil
- filter
- dielectric
- impregnated
- 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.)
- Granted
Links
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- Filtering Materials (AREA)
- Electrostatic Separation (AREA)
Abstract
(57)【要約】
【目的】 濾材に絶縁性の高いオイルを含浸させて、濾
材に高圧電極と接地電極を取付けて、誘電式フィルタと
しての高捕捉率と湿式フィルタとしての長寿命とを持た
せる。
【構成】 誘電式フィルタ1はシート状濾材2の表面側
に高圧電極3、裏面側に接地電極4を設け、高電圧発生
装置5により荷電する。濾材2は絶縁性の高いオイル6
を含浸させてある。従って誘電式と湿式と双方の特長を
有する。また濾材の裏面側に撥油層を形成させてオイル
の持ち去りを防いだり、濾材に予め難燃剤を混入した樹
脂を含浸させて難燃性を持たせることもできる。
(57) [Abstract] [Purpose] A filter medium is impregnated with highly insulating oil, and a high-voltage electrode and a ground electrode are attached to the filter medium to provide a high capture rate as a dielectric filter and a long service life as a wet filter. Let [Structure] The dielectric filter 1 is provided with a high-voltage electrode 3 on the front surface side of a sheet-shaped filter medium 2 and a ground electrode 4 on the back surface side, and is charged by a high-voltage generator 5. Filter medium 2 is oil 6 with high insulation
Is impregnated with. Therefore, it has both dielectric and wet characteristics. Further, an oil repellent layer may be formed on the back side of the filter medium to prevent the oil from being carried away, or the filter medium may be impregnated with a resin mixed with a flame retardant in advance to impart flame retardancy.
Description
【0001】[0001]
この考案は、誘電式フィルタに関する。 This invention relates to a dielectric filter.
【0002】[0002]
誘電式フィルタはダストの捕捉効率が他の一般のフィルタよりも高いことで知 られているものである。このフィルタの濾材には天然繊維または人工繊維あるい はこれらを混用したものが用いられ、いわゆる乾式の濾材であった。 Dielectric filters are known to have a higher dust trapping efficiency than other general filters. A natural fiber, an artificial fiber, or a mixture of these was used as the filter medium of this filter, which was a so-called dry type filter medium.
【0003】[0003]
従来の誘電式フィルタはダストの捕捉効率が高くそのため細かい粉塵も捕捉す るので目詰まりが早いという欠点がある。また難燃性を持たせるため、濾材を難 燃化したものもあるが、従来の難燃化手段では後述のようにフィルタの絶縁性が 低下するため、誘電式としての高捕捉効率が維持できないという問題がある。 The conventional dielectric filter has a high dust trapping efficiency and therefore traps fine dust, which is a drawback that it is quickly clogged. In addition, in order to provide flame retardancy, some filter media have been made flame-retardant, but with conventional flame-retardant means, the insulating property of the filter decreases as described below, so high capture efficiency as a dielectric type cannot be maintained. There is a problem.
【0004】[0004]
請求項1の考案は、濾材に絶縁性の高いオイルを含浸させたものである。 According to the invention of claim 1, the filter medium is impregnated with highly insulating oil.
【0005】 請求項2の考案は請求項1の考案の濾材の裏面側(流体の進出側)に撥油性の 高い樹脂をコーティングした撥油層を形成したものである。According to a second aspect of the invention, an oil repellent layer formed by coating a resin having a high oil repellent property is formed on the back surface side (the fluid advancing side) of the filter medium of the first aspect.
【0006】 請求項3の考案は濾材に難燃剤を混合した樹脂を含浸させ、さらに絶縁性の高 いシリコンオイルを含浸させたものである。According to a third aspect of the invention, the filter medium is impregnated with a resin mixed with a flame retardant, and further impregnated with silicone oil having a high insulating property.
【0007】 請求項1、2、3の濾材はいずれも濾材の表面側か裏面側の一方側に高圧電極 、他方側に接地電極を設けて高電圧を荷電し誘電式フィルタを構成する。In each of the filter media of claims 1, 2 and 3, a high voltage electrode is provided on one side of the front or back side of the filter medium and a ground electrode is provided on the other side of the filter medium to charge a high voltage to form a dielectric filter.
【0008】[0008]
【作用】 請求項1の誘電式フィルタは絶縁性の高いオイルで濾材の繊維を被っているの で、いわゆる湿式濾材として作用し、しかも通常の絶縁性の低い鉱油性のオイル のようにフィルタの帯電を中和させて誘電式としての作用を低下させることがな い。従って誘電式としての高捕捉率を保ちながら、通過しようとする細かい粉塵 を湿式濾材としてオイルが捕え、凝集、粗大化させてケーキ層とし、それによっ て濾過作用をなさせるので、多量のダストを捕捉しながら目詰まり寿命が長くな る。The dielectric filter according to claim 1 functions as a so-called wet filter medium because the fiber of the filter medium is covered with oil having a high insulating property, and the filter can be used like a normal mineral oil having a low insulating property. It does not neutralize the charge and lower the dielectric function. Therefore, while maintaining a high capture rate as a dielectric type, the fine dust that is about to pass through is trapped by the oil as a wet filter medium, agglomerates and coarsens to form a cake layer, which causes a filtering action, so a large amount of dust is generated. While catching, clogging increases the life.
【0009】 請求項2のものは請求項1の濾材の裏面側に撥油性の高い樹脂をコーティング した濾材層を形成したもので、濾材に含浸させたオイルが空気の通過によってク リン側に持ち去られるのを撥油層で阻止し、クリン側へオイルミスト等の油分が 流出するのを防止する。According to a second aspect of the present invention, a filter medium layer coated with a highly oil-repellent resin is formed on the back side of the filter medium of the first aspect, and the oil impregnated in the filter medium is carried away to the clean side by the passage of air. The oil repellent layer prevents the oil from flowing out to the cleaning side such as oil mist.
【0010】 請求項3のものは濾材の繊維が難燃性となり、さらにオイルに絶縁性の高いシ リコンオイルを用いているから、請求項1のものと同様の高捕捉率と長寿命を得 るとともに、シリコンオイルがほとんど不燃性であることによりフィルタの耐火 性能が高いものとなる。According to the third aspect, since the fibers of the filter medium are flame-retardant and silicon oil having a high insulating property is used as the oil, the same high capture rate and long life as those of the first aspect can be obtained. In addition, the fire resistance of the filter is high because the silicone oil is almost incombustible.
【0011】 ちなみに、従来の難燃化は、濾材の繊維に難燃剤と水溶性バインダー(自己消 化性のある塩ビ系バインダー等)を付着させていたからバインダー中に含まれる 乳化剤や親水剤などによって濾材繊維の絶縁性が低下し、誘電フィルタの性能を 低下させていたが、本考案のものではこのおそれがない。By the way, in the conventional flame-retardant treatment, a flame retardant and a water-soluble binder (such as a vinyl chloride-based binder with self-extinguishing property) are attached to the fibers of the filter medium. Although the insulating property of the fiber is lowered and the performance of the dielectric filter is lowered, the present invention does not have this possibility.
【0012】[0012]
図1に請求項1の実施例を示す。誘電式フィルタ1はひだ折りしたシート状濾 材2の表面側(前端側)に線状(又は帯状のものを濾材の形状により適宜用いる )の高圧電極3を設け、裏面側(後端側)に接地電極4を設けて高電圧発生装置 5により荷電したものである。 FIG. 1 shows an embodiment of claim 1. The dielectric filter 1 is provided with a linear (or a belt-shaped one is appropriately used depending on the shape of the filter material) high-voltage electrode 3 on the front surface side (front end side) of the fold-folded filter material 2, and the back surface side (rear end side). A ground electrode 4 is provided on the ground and charged by a high voltage generator 5.
【0013】 濾材2は天然または人工の適宜のシート状濾材でなり絶縁性の高いオイル6( 例えばシリコンオイルのうち絶縁性の高いもの)が含浸させてある。従ってオイ ル自体の荷電により誘電式フィルタ特性を維持しながら湿式フィルタとなるので 高捕捉効率かつ長寿命である。The filter medium 2 is made of an appropriate natural or artificial sheet-like filter medium and is impregnated with an oil 6 having a high insulating property (for example, silicon oil having a high insulating property). Therefore, the oil itself becomes a wet filter while maintaining the characteristics of the dielectric filter, resulting in high trapping efficiency and long life.
【0014】 図2に請求項2の実施例を示す。誘電式フィルタ7は濾材8に図1のものと同 様な高圧電極3、接地電極4、高電圧発生装置5を設けたものである。FIG. 2 shows an embodiment of claim 2. The dielectric filter 7 comprises a filter medium 8 provided with a high voltage electrode 3, a ground electrode 4, and a high voltage generator 5 similar to those shown in FIG.
【0015】 濾材8は濾材2と同様に絶縁性の高いシリコンオイル6を含浸させ、さらに裏 面側に撥油性の高い樹脂(一般に撥油剤としてフッ素系撥油剤を用いる)をコー ティングした撥油層9設けたものである。Similar to the filter medium 2, the filter medium 8 is impregnated with highly insulating silicone oil 6, and the back side is coated with a highly oil-repellent resin (generally a fluorine-based oil repellent is used as the oil repellent agent) to form an oil repellent layer. 9 are provided.
【0016】 また、撥油層9としては濾材8の裏面側を用いることなく、別体のシート状濾 材(図示しない)に撥油性の高い樹脂をコーティングして、これを濾材8の裏面 側に重ね合わせて撥油層9としてもよい。撥油層9により清浄空気とともにオイ ルミストがクリン側に流出し持ち去られることを防止できる。Further, as the oil-repellent layer 9, without using the back side of the filter medium 8, a separate sheet-shaped filter medium (not shown) is coated with a highly oil-repellent resin, and this is applied to the back side of the filter medium 8. The oil repellent layer 9 may be superposed on each other. The oil repellent layer 9 can prevent the oil mist from flowing out to the cleansing side and carried away together with the clean air.
【0017】 図3に請求項3の実施例を示す。誘電式フィルタ10は濾材11に図1のもの と同様な高圧電極3、接地電極4、高電圧発生装置5を設けたものである。FIG. 3 shows an embodiment of claim 3. The dielectric filter 10 comprises a filter medium 11 provided with a high voltage electrode 3, a ground electrode 4 and a high voltage generator 5 similar to those shown in FIG.
【0018】 濾材11は天然又は人工繊維のシート状濾材に難燃剤を混合した樹脂12を含 浸させ、さらに絶縁性の高いシリコンオイル13を含浸させたものである。The filter material 11 is a sheet-shaped filter material of natural or artificial fibers, which is impregnated with a resin 12 in which a flame retardant is mixed, and is further impregnated with silicone oil 13 having a high insulating property.
【0019】 従って図1、図2、図3のものともに高捕捉効率を有し、長寿命の誘電式フィ ルタである。そして図2のものはオイルのクリン側への持ち去りがない。いずれ もシリコンオイルを用いたので難燃性が得られるが特に図3のものは高度の難燃 性がある。Therefore, all of the dielectric filters shown in FIGS. 1, 2 and 3 have high trapping efficiency and have a long life. And the one in Fig. 2 does not carry the oil to the clean side. All of them use silicone oil, so they are flame retardant, but the one in Fig. 3 is highly flame retardant.
【0020】[0020]
【考案の効果】 請求項1、2、3のものともに誘電式の高捕捉効率を維持しながら湿式濾材と して長寿命が得られる。また請求項2のものはオイルのクリン側への持ち去りが 避けられ、請求項3のものは高い難燃性が得られる。[Effects of the Invention] According to the first, second, and third aspects, a long service life can be obtained as a wet filter medium while maintaining a high dielectric-type capturing efficiency. In the second aspect, oil can be prevented from being carried away to the clean side, and in the third aspect, high flame retardancy can be obtained.
【図1】請求項1の実施例。FIG. 1 is an embodiment of claim 1.
【図2】請求項2の実施例。FIG. 2 is an embodiment of claim 2;
【図3】請求項3の実施例。FIG. 3 is an embodiment of claim 3;
2、8、11濾材 3 高圧電極 4 接地電極 5 高電圧発生装置 6 絶縁性オイル 9 撥油層 12 シリコンオイル 2, 8 and 11 Filter media 3 High voltage electrode 4 Ground electrode 5 High voltage generator 6 Insulating oil 9 Oil repellent layer 12 Silicon oil
Claims (3)
浸させ、その濾材の表面側と裏面側のいずれか一方側に
高圧電極、他方側に接地電極を設けた誘電式フィルタ。1. A dielectric filter in which a sheet-shaped filter medium is impregnated with highly insulating oil, and a high-voltage electrode is provided on one side of the filter medium and a ground electrode is provided on the other side.
浸させ、その濾材の裏面側に撥油性の高い樹脂をコーテ
ィングした濾材でなる撥油層を形成させ、表面側と裏面
側のいずれかの一方側に高圧電極、他方側に接地電極を
設けた誘電式フィルタ。2. A sheet-shaped filter medium is impregnated with highly insulating oil, and an oil-repellent layer made of a filter medium coated with a resin having a high oil-repellent property is formed on the back side of the filter medium. A dielectric filter with a high-voltage electrode on one side and a ground electrode on the other side.
含有させ、さらに絶縁性の高いシリコンオイルを含浸さ
せ、その濾材の表面側と裏面側のいずれか一方側に高圧
電極、他方側に接地電極を設けた誘電式フィルタ。3. A sheet-shaped filter medium containing a resin mixed with a flame retardant, and further impregnated with highly insulating silicon oil, wherein the filter medium has a high-voltage electrode on either the front side or the back side and the other side. A dielectric filter with a ground electrode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993045909U JP2604846Y2 (en) | 1993-07-30 | 1993-07-30 | Dielectric filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993045909U JP2604846Y2 (en) | 1993-07-30 | 1993-07-30 | Dielectric filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH079443U true JPH079443U (en) | 1995-02-10 |
JP2604846Y2 JP2604846Y2 (en) | 2000-06-05 |
Family
ID=12732379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1993045909U Expired - Fee Related JP2604846Y2 (en) | 1993-07-30 | 1993-07-30 | Dielectric filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2604846Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010269259A (en) * | 2009-05-22 | 2010-12-02 | Techno Ryowa Ltd | Air cleaner |
JP2017160886A (en) * | 2016-03-11 | 2017-09-14 | トヨタ紡織株式会社 | Electrostatic collection type oil mist separator and control device for electrostatic collection type oil mist separator |
-
1993
- 1993-07-30 JP JP1993045909U patent/JP2604846Y2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010269259A (en) * | 2009-05-22 | 2010-12-02 | Techno Ryowa Ltd | Air cleaner |
JP2017160886A (en) * | 2016-03-11 | 2017-09-14 | トヨタ紡織株式会社 | Electrostatic collection type oil mist separator and control device for electrostatic collection type oil mist separator |
Also Published As
Publication number | Publication date |
---|---|
JP2604846Y2 (en) | 2000-06-05 |
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