JPH04114712A - Air cleaner - Google Patents

Abstract

PURPOSE:To permit a complete dust collection which has hitherto been difficult by the conventional filtering method by a method wherein the dew condensation accompanied by air cooling is caused to take place in a mixing zone and the waterdrops are removed completely in a cooling and dust collecting zone. CONSTITUTION:The air to be treated by dust collection is induced by a low temp. air supplied from a cooling air nozzle 1 provided in the venturi part 13 of an air cleaner body 14 through an air compressor 9, a filter 10 and a heat exchanger 11 and mixed therewith to be quenched. The vapor in the air is condensed to form waterdrops on the fine dust particles in the quenched air being treated and collected thereon as nucleus. Such dust-containing waterdrops are condensed into a large size while being passed through a cooling and dust collecting zone 4 having the air cleaner wall cooled by a cooling coil, impinged against the wall of a U-shaped pipe of the air cleaner body, carried out from a water discharge valve 6 as the water and a clean air is regulated to be at a suitable temp. through a heating zone 8 of the air cleaner body 14. A low temp. air from a cooling air nozzle 1 is sent through the air compressor 9 and a filter 10 to be cooled by a heat exchanger 11 cooled by cold water from a refrigerating machine 12 and reduced to a even lower temp. and supplied to a nozzle.

Description

【発明の詳細な説明】 〈従来の技術〉 従来空気清浄を行うには、静電収塵器やフィルターが使
用されているが、高い清浄度を必要とする目的にはプレ
フィルタ−の他、高性能フィルター　（ＨＥＰＡ）が使
用されている。[Detailed Description of the Invention] <Prior Art> Conventionally, electrostatic precipitators and filters have been used for air purification, but for purposes requiring high cleanliness, pre-filters and other methods have been used. High performance filter (HEPA) is used.

〈発明が解決しようとする問題点〉 高い空気清浄度を得るためのフィルタ一方式では、捕捉
しようとする塵埃より目の細かいフィルターで塵埃を物
理的にストップするものである。<Problems to be Solved by the Invention> In one type of filter for obtaining high air cleanliness, dust is physically stopped using a filter that is finer than the dust to be captured.

そのため長期間使用により目詰まりが生ずるので定期的
にフィルター交換をする等のメンテナンスが必要であり
、クリーンルームの場合ではこれが大変な負担となる。Therefore, clogging occurs after long-term use, and maintenance such as periodic filter replacement is required, which is a great burden in the case of a clean room.

（−旦システムを停止すると清浄度が大幅に下がるので
、復旧するのに多くの時間と労力を要する） クリーンルーム級の清浄度を確保するには送風機の動力
も大きく要し、かつ、フィルター自体も塵埃発生源とな
り得るので無塵化するのは極めて困難である。本発明は
、上記のような問題点を解決しようとするものである。(Once the system is shut down, the cleanliness drops significantly, so it takes a lot of time and effort to restore it.) To ensure clean room-level cleanliness, the blower requires a lot of power, and the filter itself also needs a lot of power. Since it can become a source of dust, it is extremely difficult to make it dust-free. The present invention aims to solve the above problems.

〈問題点を解決するための手段〉 本発明は、微小塵埃を含む処理すべき空気に低温空気を
吹き込んで急冷すると、空気中の水蒸気が微小塵埃を核
に凝縮して水滴となることに着目し、その水滴を流体力
学的手段等によって空気から分離回収することにより微
小塵埃の除去すなわち空気清浄を行うものである。<Means for Solving the Problems> The present invention focuses on the fact that when low temperature air is blown into air to be treated that contains minute dust to rapidly cool it, water vapor in the air condenses on the minute dust and becomes water droplets. Then, the water droplets are separated and collected from the air by hydrodynamic means or the like, thereby removing minute dust, that is, cleaning the air.

すなわち、本発明は、微小塵埃を含む被処理空気をベン
チュリーを・介してダクトに流す際に空気圧縮機からの
圧縮空気をフィルターにかけた後、熱交換器で冷却して
低温空気とし、ノズルからベンチュリ一部に噴出させて
被処理空気と混合、冷却する。圧縮空気の冷却は冷凍機
から冷水を熱交換器に導いて行う。冷却された被処理空
気中の水蒸気は、微小塵埃を核として凝縮、結合し、混
合ゾーンで次第に大きな水滴となる。これらを冷却した
壁面を有する曲がりダクト部、すなわち冷却教皇ゾーン
で水滴の分離、回収を行う構成となっている。That is, in the present invention, when the air to be treated containing fine dust flows through the duct via the venturi, the compressed air from the air compressor is filtered, and then cooled with a heat exchanger to make low-temperature air, which is then passed through the nozzle. It is ejected from a part of the venturi to mix with the air to be treated and cool it. Compressed air is cooled by directing cold water from the refrigerator to a heat exchanger. The water vapor in the cooled air to be treated condenses and combines with fine dust particles, and gradually becomes larger water droplets in the mixing zone. The water droplets are separated and collected in a curved duct having a cooled wall surface, that is, a cooling zone.

〈作　用〉 本発明は空気の冷却に伴う結露を混合ゾーンで行わせ、
さらに冷却教皇ゾーンで水滴を完全除去して、従来のフ
ィルタ一方式では困難であった完全教皇（無塵）を実現
しようとするものである。<Function> The present invention causes dew condensation accompanying cooling of air to occur in the mixing zone,
Furthermore, water droplets are completely removed in the cooling zone to achieve a complete dust-free system, which has been difficult with conventional single-filter systems.

〈実施例〉 以下、本発明の実施例を図面を用いて詳細に説明する。<Example> Embodiments of the present invention will be described in detail below with reference to the drawings.

第１図において、教皇すべき被処理空気はフィルター２
、ベンチュリー１３、混合ゾーン３、冷却教皇ゾ〜ン４
、冷却コイル５、及び加熱ゾーン８より構成される本体
１４のベンチュリー１３部に配置した冷却空気ノズルｌ
より空気圧縮機９、フィルター１０、熱交換器１１を経
て供給される低温空気に誘引されると共に低温空気と混
合して急冷される。すると急冷された被処理空気中の微
小塵埃を核に空気中の水蒸気が凝縮して水滴が形成され
る。In Figure 1, the air to be treated is filter 2.
, Venturi 13, Mixing Zone 3, Cooling Pope Zone 4
, cooling coil 5, and heating zone 8.
The air is attracted to the low temperature air supplied through the air compressor 9, filter 10, and heat exchanger 11, and is rapidly cooled by mixing with the low temperature air. Then, water vapor in the air is condensed with the microscopic dust in the rapidly cooled air to be treated as nuclei, forming water droplets.

これら塵を含んだ水滴は本体壁面を冷却コイルで冷却さ
れた冷却教皇ゾーン４を通過する間に凝集して粗大化し
、清浄機本体のＵ字管部の壁面に衝突して水分として水
分排出弁６より排出され、清浄な空気は本体１４の加熱
ゾーン８を経て適温に調整される。These dust-containing water droplets condense and become coarse while passing through the cooling zone 4, which is cooled by a cooling coil, on the wall surface of the purifier, and collide with the wall surface of the U-shaped pipe section of the purifier main body, where they turn into water at the water discharge valve. 6, the clean air passes through the heating zone 8 of the main body 14 and is adjusted to an appropriate temperature.

冷却空気ノズル１より噴出される低温空気は、空気圧縮
９、フィルター１０を経て冷凍機１２の冷水により冷却
される熱交換器１１で冷却されて低温となりノズルに供
給される。The low-temperature air ejected from the cooling air nozzle 1 passes through an air compressor 9 and a filter 10, and is cooled by a heat exchanger 11 that cools it with cold water from a refrigerator 12, so that the temperature becomes low and is supplied to the nozzle.

熱交換器１１で圧縮空気を冷却した冷水は本体壁面を冷
却する冷却コイル５に導かれて本体を冷却した後冷凍機
に戻る。The cold water that has cooled the compressed air in the heat exchanger 11 is guided to the cooling coil 5 that cools the wall surface of the main body, cools the main body, and then returns to the refrigerator.

一方、冷凍機の高温側流体は加熱ゾーン８内の加熱コイ
ル７に導かれ、清浄空気を適温に加熱した後冷凍機に戻
る。On the other hand, the high-temperature side fluid of the refrigerator is guided to the heating coil 7 in the heating zone 8 and returns to the refrigerator after heating the clean air to an appropriate temperature.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、この発明の実施例による構造図を示す。 １・・・冷却空気ノズル ３・・・混合ゾーン ５・・・冷却コイル ７・・・加熱コイル ９・・・空気圧縮機 １１・・・熱交換器 １３・・・ベンチュリー ２・・・フィルタ ４・・・冷却教皇ゾ ロ・・・水分排出弁 ８・・・加熱ゾーン １０・・・フィルター １２・・・冷凍機 １４・・・本体 ン 第１図 FIG. 1 shows a structural diagram according to an embodiment of the invention. 1...Cooling air nozzle 3...Mixing zone 5...Cooling coil 7...Heating coil 9...Air compressor 11... Heat exchanger 13...Venturi 2...filter 4...Cooling Pope Zo B...Moisture drain valve 8... Heating zone 10...filter 12... Refrigerator 14...Main body hmm Figure 1

Claims (1)

【特許請求の範囲】 （Ａ）フィルター２、ベンチュリー１３、混合ゾーン３
冷却収塵ゾーン４、冷却コイル５、および加熱ゾーン８
、より構成される本体１４と、 （Ｂ）前記本体１４のベンチュリー１３部に配置した冷
却空気ノズル１と冷却ノズル１に冷却空気を供給するた
めの空気圧縮機９、フィルター１０、熱交換器１１、冷
凍機１２と、 （Ｃ）前記本体１４の加熱ゾーン８に設置された加熱コ
イル７と加熱コイル７に高温流体を送る前述の冷凍機１
２と、 からなる空気清浄機。[Claims] (A) Filter 2, venturi 13, mixing zone 3
Cooling dust collection zone 4, cooling coil 5, and heating zone 8
, and (B) a cooling air nozzle 1 disposed in the venturi 13 portion of the main body 14, an air compressor 9, a filter 10, and a heat exchanger 11 for supplying cooling air to the cooling nozzle 1. , a refrigerator 12, and (C) a heating coil 7 installed in the heating zone 8 of the main body 14 and the aforementioned refrigerator 1 that sends high-temperature fluid to the heating coil 7.
An air purifier consisting of 2 and.