JPH09173893A - Dielectric type air filter - Google Patents
Dielectric type air filterInfo
- Publication number
- JPH09173893A JPH09173893A JP35386595A JP35386595A JPH09173893A JP H09173893 A JPH09173893 A JP H09173893A JP 35386595 A JP35386595 A JP 35386595A JP 35386595 A JP35386595 A JP 35386595A JP H09173893 A JPH09173893 A JP H09173893A
- Authority
- JP
- Japan
- Prior art keywords
- filter material
- filter medium
- layer filter
- moisture absorbent
- middle layer
- 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
- Electrostatic Separation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は家庭用や業務用に
用いられる空気清浄器の誘電式エアフィルタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dielectric air filter for an air purifier used in homes and businesses.
【０００２】[0002]
【従来の技術】誘電式エアフィルタは、通常の機械的濾
過によるエアフィルタに比べてダストの捕捉効率が高
く、特に微細粒子例えば花粉や煙草の煙等に対して捕捉
作用が大であるから、室内用のエアフィルタ等に用いら
れている。この誘電式エアフィルタは、一対の電極間の
放電を防止するため、電源の種類（高電圧の容量）にも
よるが、通常５〜２０ｍｍ程度の間隔を保ち、この間隔
に濾材が配置されている。2. Description of the Related Art Dielectric air filters have a high dust trapping efficiency as compared with ordinary mechanical filtration air filters, and in particular have a large trapping effect on fine particles such as pollen and cigarette smoke. Used for indoor air filters. In order to prevent electric discharge between a pair of electrodes, this dielectric air filter normally maintains an interval of about 5 to 20 mm, depending on the type of power source (capacity of high voltage), and a filter medium is placed at this interval. There is.
【０００３】[0003]
【発明が解決しようとする課題】この濾材に高電圧を印
加して強力な静電気力を付加する必要があるが、濾材が
湿気を帯びると絶縁性が低下して静電気力が落ち、ダス
ト捕捉能力が劣化する。It is necessary to apply a high voltage to this filter medium to add a strong electrostatic force. However, if the filter medium becomes moist, the insulating property will be lowered and the electrostatic force will be reduced, resulting in a dust trapping ability. Deteriorates.
【０００４】[0004]
【課題を解決するための手段】この発明の誘電式エアフ
ィルタは一対の電極の間に挟まれる濾材を、薄い濾材で
なる上層濾材と、上面に吸湿剤を配した粗い濾材でなる
中層濾材と、中層濾材より密な下層濾材とで構成したも
のである。The dielectric air filter of the present invention comprises a filter medium sandwiched between a pair of electrodes, an upper layer filter medium made of a thin filter medium, and an intermediate layer filter medium made of a coarse filter medium having a hygroscopic agent on the upper surface. , A lower layer filter medium that is denser than the middle layer filter medium.
【０００５】この誘電式エアフィルタに高電圧を印加す
ると、濾材は帯電し静電気力が付加される。空気を送る
と通過する空気流により中層濾材の上面に配した吸湿剤
が空気流に従がい粗い中層濾材の層内に入り込み繊維に
付着し、吸湿剤はさらに下層濾材の上面に達する。この
ため中層下層濾材は湿気を帯びることが防止され絶縁性
は常に良好で静電気力が低下することがなく、常に優れ
たダスト捕捉効率を示す。また吸湿剤により親水性臭気
成分を除去するという脱臭効果もある。When a high voltage is applied to this dielectric air filter, the filter medium is charged and electrostatic force is added. When the air is sent, the hygroscopic agent arranged on the upper surface of the middle-layer filter medium is introduced into the coarse layer of the middle-layer filter medium according to the air flow and adheres to the fibers, and the hygroscopic agent further reaches the upper surface of the lower-layer filter medium. For this reason, the middle-layer and lower-layer filter medium is prevented from being moistened, has a good insulating property, does not deteriorate the electrostatic force, and always exhibits an excellent dust trapping efficiency. It also has a deodorizing effect of removing hydrophilic odor components with a hygroscopic agent.
【０００６】[0006]
【発明の実施の形態】図１にこの発明の実施形態の例を
示す。図示の誘電式エアフィルタは一対の金網状の電極
１、２を対向させて設け、電極１、２の間に、上層濾材
３、中層濾材４、下層濾材５を積層して挟持させ、高電
圧印加手段８を接続する。電極１、２の（＋）極、
（−）極はどちらにしてもよく、その間隔は５〜２０ｍ
ｍ程度である。高電圧印加手段８はコンデンサ等周知の
ものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment of the present invention. The illustrated dielectric air filter is provided with a pair of wire mesh-shaped electrodes 1 and 2 facing each other, and an upper layer filter medium 3, an intermediate layer filter medium 4 and a lower layer filter medium 5 are laminated and sandwiched between the electrodes 1 and 2 for high voltage. The applying means 8 is connected. (+) Pole of electrodes 1 and 2,
The (-) pole may be either side, and the distance is 5 to 20 m.
m. The high voltage applying means 8 is a known one such as a capacitor.
【０００６】上層濾材３は厚さの薄い濾材でなり、プレ
フィルタとして作用させる。例えば目付量１０ｇ／ｍ2
〜４０ｇ／ｍ2程度であり、次の中層濾材４に比べて比
較的密である。The upper layer filter medium 3 is made of a thin filter medium and acts as a prefilter. For example, a basis weight of 10 g / m 2
It is about 40 g / m 2 and is relatively dense as compared with the next medium-layer filter medium 4.
【０００７】中層濾材４は粗い（濾孔径が比較的大な）
濾材でなり、その上面に吸湿剤６を配置し、比較的厚さ
を大にしてある。The middle-layer filter medium 4 is coarse (the filter pore size is relatively large).
It is made of a filter material, and the hygroscopic agent 6 is arranged on the upper surface of the filter material to have a relatively large thickness.
【０００８】下層濾材５は中層濾材４よりやや薄い不織
布でなり、中層濾材４より密で、上層濾材３とほぼ等し
い程度の密度のものである。また上層濾材３の周縁に延
伸部７を有しており、中層濾材４の側面を包んで下層濾
材６の周縁に熱溶着されている。これにより上層、中
層、下層の濾材３、４、５が一体化され吸湿材６の散失
が防がれる。The lower layer filter medium 5 is made of a non-woven fabric which is slightly thinner than the intermediate layer filter medium 4, is denser than the intermediate layer filter medium 4, and has a density substantially equal to that of the upper layer filter medium 3. Further, the upper layer filter medium 3 has a stretched portion 7 at the periphery thereof and is wrapped around the side surface of the middle layer filter medium 4 and heat welded to the periphery of the lower layer filter medium 6. As a result, the upper, middle, and lower filter media 3, 4, and 5 are integrated to prevent the hygroscopic material 6 from being scattered.
【０００９】各濾材３、４、５は通常帯電しやすいポリ
プロピレン繊維で形成する。しかし場合によっては中層
濾材４を帯電性がやや低いポリエチレン繊維として、下
層濾材５のほうが帯電性が強いように、帯電性に勾配を
与えてもよい。また目詰まりの進行途中で、風圧による
濾材の潰れを防止するため中層濾材４を太径の繊維で形
成して腰の強さを与え、潰れ防止対策としてもよい。Each of the filter media 3, 4, and 5 is usually formed of polypropylene fiber which is easily charged. However, in some cases, the middle-layer filter medium 4 may be made of polyethylene fiber having a slightly low chargeability, and the chargeability may be graded so that the lower-layer filter medium 5 has a stronger chargeability. Further, in order to prevent the filter medium from being crushed due to wind pressure during the progress of clogging, the middle-layer filter medium 4 may be formed of a fiber having a large diameter to give a firmness to the waist to prevent the crushing.
【００１０】吸湿剤は通常用いられるシリカゲルあるい
はゼオライト等である。The hygroscopic agent is commonly used silica gel or zeolite.
【００１１】[0011]
【発明の効果】この発明の誘電式エアフィルタは濾材中
に吸湿剤を配置することにより、湿気を帯びることを防
ぎ常に強い静電気力を保たせることができるので、湿気
によるダスト捕捉効率の低下がない。また親水性臭気成
分の除去による脱臭効果もある、また上層濾材を薄く
し、中層濾材を粗い濾孔径、下層濾材を比較的密な濾孔
径としたことにより濾材に密度勾配が生じ更には静電気
力の分布に勾配が生じて、ダスト捕捉が厚さ方向に均等
化され、目詰まり寿命が延長される。EFFECTS OF THE INVENTION The dielectric air filter of the present invention has a hygroscopic agent disposed in the filter medium to prevent it from being moistened and to always maintain a strong electrostatic force. Absent. It also has a deodorizing effect by removing hydrophilic odor components.Also, by making the upper layer filter medium thin, the middle layer filter medium a coarse filter diameter, and the lower layer filter medium a relatively dense filter pore size, a density gradient is created in the filter medium and electrostatic force Has a gradient, the dust trapping is equalized in the thickness direction, and the clogging life is extended.
【図１】この発明の実施形態の例を示す図。FIG. 1 is a diagram showing an example of an embodiment of the present invention.
１、２ 電極 ３ 上層濾材 ４ 中層濾材 ５ 下層濾材 ６ 吸湿材 1, 2 electrodes 3 upper layer filter medium 4 middle layer filter medium 5 lower layer filter medium 6 hygroscopic material
Claims (1)
電極に高電圧を印加するようにした誘電式エアフィルタ
において、濾材を薄い濾材でなる上層濾材と、上面に吸
湿剤を配した粗い濾材でなる中層濾材と、中層濾材より
密な下層濾材とで構成したことを特徴とする誘電式エア
フィルタ。1. A filter medium is arranged between a pair of mesh electrodes,
In a dielectric air filter that applies a high voltage to the electrodes, the filter medium consists of an upper layer filter medium consisting of a thin filter medium, an intermediate layer filter medium consisting of a coarse filter medium with a hygroscopic agent on the upper surface, and a lower layer filter medium denser than the intermediate layer filter medium. A dielectric air filter characterized by being constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35386595A JPH09173893A (en) | 1995-12-28 | 1995-12-28 | Dielectric type air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35386595A JPH09173893A (en) | 1995-12-28 | 1995-12-28 | Dielectric type air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09173893A true JPH09173893A (en) | 1997-07-08 |
Family
ID=18433751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35386595A Pending JPH09173893A (en) | 1995-12-28 | 1995-12-28 | Dielectric type air filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09173893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044366A (en) * | 2016-02-05 | 2017-08-15 | 现代自动车株式会社 | Method for the long-life air cleaner and manufacture of automobile the long-life air cleaner |
-
1995
- 1995-12-28 JP JP35386595A patent/JPH09173893A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044366A (en) * | 2016-02-05 | 2017-08-15 | 现代自动车株式会社 | Method for the long-life air cleaner and manufacture of automobile the long-life air cleaner |
| US10399026B2 (en) | 2016-02-05 | 2019-09-03 | Hyundai Motor Company | Long-life air filter for automobiles and method of manufacturing the long-life air filter |
| CN107044366B (en) * | 2016-02-05 | 2020-12-08 | 现代自动车株式会社 | Long-life air filter for automobile and method for manufacturing same |
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