JP5794867B2 - Oil mist processing system - Google Patents
Oil mist processing system Download PDFInfo
- Publication number
- JP5794867B2 JP5794867B2 JP2011194782A JP2011194782A JP5794867B2 JP 5794867 B2 JP5794867 B2 JP 5794867B2 JP 2011194782 A JP2011194782 A JP 2011194782A JP 2011194782 A JP2011194782 A JP 2011194782A JP 5794867 B2 JP5794867 B2 JP 5794867B2
- Authority
- JP
- Japan
- Prior art keywords
- oil mist
- air
- zone
- generation zone
- mist generation
- 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.)
- Active
Links
- 239000003595 mist Substances 0.000 title claims description 174
- 238000004378 air conditioning Methods 0.000 claims description 27
- 230000001143 conditioned effect Effects 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 131
- 239000002245 particle Substances 0.000 description 11
- 230000000630 rising effect Effects 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BLUGYPPOFIHFJS-UUFHNPECSA-N (2s)-n-[(2s)-1-[[(3r,4s,5s)-3-methoxy-1-[(2s)-2-[(1r,2r)-1-methoxy-2-methyl-3-oxo-3-[[(1s)-2-phenyl-1-(1,3-thiazol-2-yl)ethyl]amino]propyl]pyrrolidin-1-yl]-5-methyl-1-oxoheptan-4-yl]-methylamino]-3-methyl-1-oxobutan-2-yl]-3-methyl-2-(methylamino)butanamid Chemical compound CN[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N(C)[C@@H]([C@@H](C)CC)[C@H](OC)CC(=O)N1CCC[C@H]1[C@H](OC)[C@@H](C)C(=O)N[C@H](C=1SC=CN=1)CC1=CC=CC=C1 BLUGYPPOFIHFJS-UUFHNPECSA-N 0.000 description 1
- 208000007934 ACTH-independent macronodular adrenal hyperplasia Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 230000008821 health effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Ventilation (AREA)
Description
本発明は、機械加工工場内などの作業空間内を空調しつつ作業空間内で発生するオイルミストを排気処理するオイルミスト処理システムに関するものである。 The present invention relates to an oil mist processing system that exhausts oil mist generated in a work space while air-conditioning the work space such as a machining factory.
ＮＣ旋盤、研削盤、マシニングセンタなど工作機械は、鉱油などの切削油を、加工工具と被削材との加工部分に供給するため、大量のオイルミストが発生する。工作機械には個別に小型のミストコレクタを接続して工作機械から発生するオイルミストを除去しているが、オイルミストコレクタの除去率は、概ね９０％以上であるもののオイルミストを完全に除去することは不可能である。 Machine tools such as an NC lathe, a grinding machine, and a machining center supply a cutting oil such as mineral oil to a processing portion of a processing tool and a work material, so that a large amount of oil mist is generated. A small mist collector is connected to each machine tool to remove the oil mist generated from the machine tool, but the oil mist collector removal rate is approximately 90% or more, but the oil mist is completely removed. It is impossible.
オイルミストのＭＭＡＤ（空気力学的直径）粒径分布は、０．１〜１．０μｍの粒径が約８０％で、捕集しやすい１〜１０μｍの粒径のミストは約２０％以下である。このオイルミストを、市販されている除去率９０％以上のオイルミストコレクタで除去しても、１〜１０μｍの粒径のミストは、９０％以上の除去率で除去できても、０．１〜１μｍの粒径のミストは、９０％以下の除去率となる。 The oil mist has a MMAD (aerodynamic diameter) particle size distribution of about 80% for a particle size of 0.1 to 1.0 μm, and about 20% or less for a mist with a particle size of 1 to 10 μm that is easy to collect. . Even if this oil mist is removed with a commercially available oil mist collector having a removal rate of 90% or more, a mist having a particle size of 1 to 10 μm can be removed with a removal rate of 90% or more. A mist having a particle diameter of 1 μm has a removal rate of 90% or less.
このため除去しきれない０．１〜１μｍと粒径の小さなオイルミストが、作業空間に浮遊滞留してしまう問題がある。 For this reason, there is a problem that oil mist having a small particle diameter of 0.1 to 1 μm that cannot be removed is suspended in the working space.
機械加工工場等の作業空間内において発生するオイルミストに関する法規制は、現在制定されていないが、日本産業衛生学会が発表しているミスト許容濃度に関する勧告値では、オイルミスト濃度が３ｍｇ／ｍ3以下であれば、作業空間内で労働者がオイルミストに暴露されても健康上の悪影響はないとしている。 There are currently no laws and regulations regarding oil mist generated in the working space of machining plants, etc., but the recommended value for mist allowable concentration published by the Japan Society for Occupational Health is 3 mg / m 3. In the following cases, even if workers are exposed to oil mist in the work space, there are no adverse health effects.
また自動車業界等の一般指標としての作業空間のミスト濃度と視界状態の関係は、オイルミスト濃度（ｍｇ／ｍ3）と視界状態が、０．２ｍｇ／ｍ3では、かすみといった顕著な現象は確認できない、０．５ｍｇ／ｍ3では、うっすらとかすむ、１．０ｍｇ／ｍ3では曇っていることが判る、２．０ｍｇ／ｍ3では視界が悪いとされている。 In addition, the relationship between the mist concentration in the work space and the visibility state as a general index in the automobile industry, etc., confirmed that remarkable phenomena such as haze were observed when the oil mist concentration (mg / m 3 ) and the visibility state were 0.2 mg / m 3. It cannot be seen, 0.5 mg / m 3 is slightly hazy, 1.0 mg / m 3 is cloudy, and 2.0 mg / m 3 is said to have poor visibility.
そこで、従来、工場内の作業空間全体を空気調和機で空調しながら作業空間の換気量を増加させ、同時に作業空間内に天吊り型や床置き型のミストコレクタを設置、或いはオイルミスト除去機能を備えた空気調和機を設置してオイルミストを除去するようにしている（特許文献１）。 Therefore, conventionally, the entire work space in the factory is air-conditioned with an air conditioner to increase the ventilation of the work space, and at the same time, a ceiling-mounted or floor-standing mist collector is installed, or an oil mist removal function An air conditioner equipped with an air conditioner is installed to remove oil mist (Patent Document 1).
しかしながら、作業空間に浮遊滞留するオイルミストは、粒径０．１〜１μｍのミストであり、フィルタタイプのミストコレクタやフィルタ機能付き空気調和機を用いたのでは、オイルミストの除去よりも、オイルミストを作業空間全体に拡散させてしまう問題があると共にオイルミストが空気調和機の内部に付着するため、その清掃も頻繁に行う必要がある。 However, the oil mist that floats and stays in the work space is a mist having a particle size of 0.1 to 1 μm. If a filter type mist collector or an air conditioner with a filter function is used, oil mist is removed rather than oil mist removal. There is a problem that the mist is diffused throughout the work space, and the oil mist adheres to the inside of the air conditioner.
空気調和機に高性能フィルタを用いてオイルミストを除去することはできるが、高価なフィルタを頻繁に交換しなければならない。また電気集塵型のオイルミストコレクタで除去すれば、小粒径のオイルミストを効率よく除去できるものの、電気集塵型では、コストがかかると共にメンテナンスを頻繁に行わなければならない問題がある。 Although oil mist can be removed using a high performance filter in an air conditioner, expensive filters must be replaced frequently. Further, if it is removed with an oil dust collecting type oil mist collector, the oil mist having a small particle diameter can be removed efficiently, but the electric dust collecting type has a problem that it is costly and requires frequent maintenance.
そこで、外気を大量に導入し、これを空調して作業空間に供給し、外気導入量に応じて換気量を多くすれば、作業空間内のオイルミストの濃度は下げられるものの空調負荷（動力エネルギー）が増える問題がある。 Therefore, if a large amount of outside air is introduced, air-conditioned and supplied to the work space, and the amount of ventilation is increased according to the amount of outside air introduced, the oil mist concentration in the work space can be reduced, but the air conditioning load (power energy) ) Will increase.
そこで、本発明の目的は、上記課題を解決し、作業空間内の空調とオイルミストの除去を効率よく行えるオイルミスト処理システムを提供することにある。 Accordingly, an object of the present invention is to provide an oil mist processing system that can solve the above-described problems and efficiently perform air conditioning and oil mist removal in a work space.
上記目的を達成するために請求項１の発明は、作業空間内に、工作機械などのオイルミスト発生源を設置したオイルミスト発生ゾーンを形成し、そのオイルミスト発生ゾーンを置換空調し、置換空調で、オイルミスト発生ゾーンで発生したオイルミストを熱上昇流と共に、作業空間の上部の天井ゾーンに移送し、その天井ゾーン内の高濃度のオイルミストを外部に排気すると共に天井ゾーンに外気を導入し、他方上記オイルミスト発生ゾーンと天井ゾーン間に吸込ダクトを配置し、その吸込ダクトからオイルミストを含む空気を吸引すると共にミストエリミネータに導入してオイルミストを除去し、その除去後の空気を空気調和機に導入して空調すると共にその空調空気を上記作業空間に循環してオイルミスト発生ゾーンを置換空調することを特徴とするオイルミスト処理システムである。 In order to achieve the above object, according to the first aspect of the present invention, an oil mist generating zone in which an oil mist generating source such as a machine tool is installed is formed in a work space, and the oil mist generating zone is replaced with air conditioning. The oil mist generated in the oil mist generation zone is transferred to the ceiling zone at the top of the work space together with the heat rising flow, and the high-concentration oil mist in the ceiling zone is exhausted to the outside and the outside air is introduced to the ceiling zone. On the other hand, a suction duct is arranged between the oil mist generation zone and the ceiling zone, and air containing oil mist is sucked from the suction duct and introduced into the mist eliminator to remove oil mist, and the air after the removal is removed. replacing air conditioning oil mist generation zone by circulating to the work space the conditioned air as well as air conditioning is introduced into the air conditioner An oil mist processing system according to claim.
請求項２の発明は、作業空間内に、上記オイルミスト発生ゾーンに隣接して作業エリアを形成すると共にその作業エリアに空気調和機を設置し、空気調和機からの空調空気を上記オイルミスト発生ゾーンの下部に供給してオイルミスト発生ゾーンを置換空調する請求項１記載のオイルミスト処理システムである。 According to a second aspect of the present invention, a work area is formed in a work space adjacent to the oil mist generation zone, an air conditioner is installed in the work area, and conditioned air from the air conditioner is generated from the oil mist. is supplied to the lower part of the zone is an oil mist processing system of claim 1 wherein the substituted conditioning oil mist generating zone.
請求項３の発明は、上記吸込ダクトの下方の作業エリアに吹出ダクトが設置され、上記空気調和機からの空調空気を上記吹出ダクトから下向きに吹き出してオイルミスト発生ゾーンを置換空調する請求項１記載のオイルミスト処理システムである。 A third aspect of the present invention, air duct is installed in the work area below the inlet duct, according to claim 1, the conditioned air from the air conditioner to replace air conditioning oil mist generation zone is blown downward from the air duct It is an oil mist processing system of description.
請求項４の発明は、空気調和機から空調空気を上記オイルミスト発生ゾーンの下部に向けて吹き出して、オイルミスト発生ゾーンを置換空調する請求項１記載のオイルミスト処理システムである。 A fourth aspect of the present invention, the conditioned air from the air conditioner is blown toward the lower portion of the oil mist generation zone, an oil mist processing system of claim 1 wherein the substituted conditioning oil mist generating zone.
請求項５の発明は、上記作業エリアに中空の作業通路台が設置されると共にその作業通路台が空気調和機に接続され、その作業通路台に形成した吹出口から上記オイルミスト発生ゾーンに空調空気を吹き出して、オイルミスト発生ゾーンを置換空調する請求項２記載のオイルミスト処理システムである。 According to a fifth aspect of the present invention, a hollow work passage base is installed in the work area, the work passage base is connected to an air conditioner, and air conditioning is performed from an outlet formed in the work passage base to the oil mist generation zone. The oil mist processing system according to claim 2 , wherein air is blown out to perform replacement air conditioning in the oil mist generation zone.
請求項６の発明は、空気調和機の空調空気の吹出ダクトが誘引ユニットに接続され、その誘引ユニットで、作業エリアの空気を誘引しつつ、これをオイルミスト発生ゾーンに吹き出して、オイルミスト発生ゾーンを置換空調する請求項２記載のオイルミスト処理システムである。 According to the sixth aspect of the present invention, the blowout duct of the conditioned air of the air conditioner is connected to the induction unit, and the induction unit draws the air to the oil mist generation zone while attracting the air in the work area, thereby generating the oil mist. The oil mist processing system according to claim 2, wherein the zone is replaced and air-conditioned.
本発明は、工作機械などのオイルミスト発生源を設置したオイルミスト発生ゾーンを置換空調することで、オイルミスト発生ゾーンで発生するオイルミストを熱上昇流と共に天井ゾーンに移送し、これを外部に排気することで、作業空間の空調を行いつつ作業空間へのオイルミストの拡散を防止できるという優れた効果を発揮する。 The present invention replaces and air-conditions the oil mist generation zone in which an oil mist generation source such as a machine tool is installed, thereby transferring the oil mist generated in the oil mist generation zone to the ceiling zone together with the heat rising flow, By exhausting air, the work space is air-conditioned and the oil mist can be prevented from diffusing into the work space.
以下、本発明の好適な一実施の形態を添付図面に基づいて詳述する。 A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
図１〜図３において、１０は、機械加工を行う工場などの作業空間で、作業空間１０内には工作機械等のオイルミスト発生源１１が複数台設置される。オイルミスト発生源１１の上部には、オイルミスト発生源１１から排出されるオイルミストを除去するためのオイルミストコレクタ１２が設けられている。このオイルミストコレクタ１２は、オイルミスト除去後の空気を上方に排気するように設けるとよい。 1 to 3, reference numeral 10 denotes a work space such as a factory for machining, and a plurality of oil mist generation sources 11 such as machine tools are installed in the work space 10. An oil mist collector 12 for removing the oil mist discharged from the oil mist generation source 11 is provided above the oil mist generation source 11. The oil mist collector 12 is preferably provided so as to exhaust the air after oil mist removal upward.
作業空間１０内の中央には、オイルミスト発生源１１が設置されたオイルミスト発生ゾーン１３が形成され、そのオイルミスト発生ゾーン１３に隣接して作業エリア１４が形成される。作業エリア１４は、図示例では、オイルミスト発生ゾーン１３を挟んで作業空間１０の壁１０ｗ側に形成する例を示しているが、オイルミスト発生ゾーン１３と作業エリア１４は、工場内の工作機械の配置状況に合わせて形成される。 An oil mist generation zone 13 in which an oil mist generation source 11 is installed is formed in the center of the work space 10, and a work area 14 is formed adjacent to the oil mist generation zone 13. In the illustrated example, the work area 14 is formed on the wall 10w side of the work space 10 with the oil mist generation zone 13 interposed therebetween. However, the oil mist generation zone 13 and the work area 14 are machine tools in the factory. It is formed according to the arrangement situation.
作業エリア１４には、作業空間１０内を空調するための空気調和機１５が設置され、この空気調和機１５でオイルミスト発生ゾーン１３が置換空調されるように空気調和機１５の吹出口と吸込口の位置が設定される。このオイルミスト発生ゾーン１３を置換空調することで、オイルミスト発生ゾーン１３内で発生したオイルミストが、作業空間１０の上部の天井ゾーン１６に移送されるようになっている。 In the work area 14, an air conditioner 15 for air-conditioning the work space 10 is installed. The air conditioner 15 replaces and air-conditions the air mist generation zone 13, and the air outlet 15 and the suction port of the air conditioner 15. The position of the mouth is set. By performing replacement air conditioning on the oil mist generation zone 13, the oil mist generated in the oil mist generation zone 13 is transferred to the ceiling zone 16 at the upper part of the work space 10.
天井ゾーン１６には、天井ゾーン１６内の高濃度のオイルミストを含む空気を排出する排気ファン１７が設けられると共に外気を導入する外気導入ファン１８が設けられる。 The ceiling zone 16 is provided with an exhaust fan 17 that discharges air containing high-concentration oil mist in the ceiling zone 16 and an outside air introduction fan 18 that introduces outside air.
次にオイルミスト発生ゾーン１３を置換空調する際の具体例を説明する。 Next, a specific example when the oil mist generation zone 13 is subjected to replacement air conditioning will be described.
図１〜図３の実施の形態においては、作業エリア１４側、特に作業空間１０の壁１０ｗに沿って、かつオイルミスト発生源１１に接続されたオイルミストコレクタ１２の高さより高い位置に吹出ダクト２０が配置され、その吹出ダクト２０より高い位置で、かつ天井ゾーン１６に近い位置に吸込ダクト２１が水平に配置される。吸込ダクト２１は、吸込側接続ダクト２２を介して空気調和機１５の吸込側に接続され、吹出ダクト２０は、吹出側接続ダクト２３を介して空気調和機１５の吹出側に接続される。 In the embodiment of FIGS. 1 to 3, the blowout duct is located at a position higher than the height of the oil mist collector 12 connected to the oil mist generation source 11 along the work area 14 side, particularly the wall 10 w of the work space 10. The suction duct 21 is horizontally disposed at a position higher than the blowout duct 20 and close to the ceiling zone 16. The suction duct 21 is connected to the suction side of the air conditioner 15 via the suction side connection duct 22, and the blowout duct 20 is connected to the blowout side of the air conditioner 15 via the blowout side connection duct 23.
吸込ダクト２１には、長手方向に間隔を置いて複数の吸込口２４が形成されると共にこれら吸込口２４が上方に向くように設けられる。吹出ダクト２０には、長手方向に間隔を置いて複数の吹出口２５が形成されると共にこれら吹出口２５が下方を向くように形成される。 A plurality of suction ports 24 are formed in the suction duct 21 at intervals in the longitudinal direction, and the suction ports 24 are provided so as to face upward. A plurality of outlets 25 are formed in the outlet duct 20 at intervals in the longitudinal direction, and these outlets 25 are formed so as to face downward.
吸込側接続ダクト２２は、吸込ダクト２１から壁１０ｗ側に水平に延びた水平部２２ｈと、その水平部２２ｈから下方に延びた垂直部２２ｖと、垂直部２２ｖの下端からやや上向きに傾斜して空気調和機１５の吸込側に接続される傾斜部２２ｇとからなり、垂直部２２ｖ内の下部にミストエリミネータ２６が設けられ、傾斜部２２ｇにミストエリミネータ２６で分離されたオイル等を排出するドレインパイプ２７が接続される。 The suction-side connecting duct 22 is inclined slightly upward from the horizontal portion 22h extending horizontally from the suction duct 21 toward the wall 10w, the vertical portion 22v extending downward from the horizontal portion 22h, and the lower end of the vertical portion 22v. A drain pipe that includes an inclined portion 22g connected to the suction side of the air conditioner 15, and is provided with a mist eliminator 26 at a lower portion in the vertical portion 22v, and discharges oil or the like separated by the mist eliminator 26 to the inclined portion 22g. 27 is connected.
次に、本実施の形態の作用を説明する。 Next, the operation of the present embodiment will be described.
空気調和機１５では、吹出ダクト２０の各吹出口２５から、例えば２０℃の空調空気を作業エリア１４に下向きに吹き出すことで、空調空気は壁１０ｗに沿ってダウンフローで流れ、オイルミスト発生ゾーン１３内で、例えば床面で２３℃程度、上部で２８℃程度、天井ゾーン１６で３０℃程度となり、床と天井間が温度差１０℃程度の温度分布となり、この温度分布でオイルミスト発生ゾーン１３内に温度成層が形成され、オイルミスト発生ゾーン１３内の空気は熱上昇流となって上昇する。またオイルミスト発生ゾーン１３の上部の空気は、吸込ダクト２１の吸込口２４から吸い込まれて空気調和機１５で再度空調されて吹出ダクト２０の各吹出口２５から吹き出される。 In the air conditioner 15, for example, air conditioned air of 20 ° C. is blown downward from the air outlets 25 of the air outlet duct 20 to the work area 14, so that the air conditioned air flows in a down flow along the wall 10 w, and an oil mist generation zone 13, for example, about 23 ° C. on the floor, about 28 ° C. on the top, and about 30 ° C. on the ceiling zone 16, and a temperature distribution between the floor and the ceiling has a temperature difference of about 10 ° C. A temperature stratification is formed in 13 and the air in the oil mist generation zone 13 rises as a heat rising flow. The air in the upper part of the oil mist generation zone 13 is sucked from the suction port 24 of the suction duct 21, air-conditioned again by the air conditioner 15, and blown out from each outlet 25 of the outlet duct 20.
これにより、吸込ダクト２１の下方では清浄域となり、上方では汚染域となり、また汚染域の空気温度は、清浄域の空気温度より高いため、汚染域の空気が清浄域の空気に拡散することはなく、排気ファン１７から排気できる。なお排気ファン１７から排気された高濃度のオイルミストは、市販の処理装置で処理する。 As a result, the area below the suction duct 21 is a clean area, the area above is a contaminated area, and the air temperature in the contaminated area is higher than the air temperature in the clean area, so that the air in the contaminated area does not diffuse into the air in the clean area. The exhaust fan 17 can exhaust the air. The high-concentration oil mist exhausted from the exhaust fan 17 is processed by a commercially available processing apparatus.
ここで、オイルミスト発生ゾーン１３の置換空調によりオイルミストを天井ゾーン１６に移送する際には、オイルミスト発生ゾーン１３での空調空気の上昇速度をオイルミスト発生源１１から排出されるオイルミストの終末沈降速度以上にする必要がある。 Here, when the oil mist is transferred to the ceiling zone 16 by the replacement air conditioning in the oil mist generation zone 13, the rising speed of the air conditioned air in the oil mist generation zone 13 is the oil mist discharged from the oil mist generation source 11. It is necessary to exceed the terminal sedimentation rate.
一般に密度ρが１ｇ／ｃｍ3で、粒径１μｍの粒子の終末沈降速度は、０．０３ｍｍ／ｓｅｃであり、通常オイルミストの密度ρは１ｇ／ｃｍ3以下であり、粒径も１μｍ以下が大部分であるため、オイルミストの最大終末沈降速度は０．０３ｍｍ／ｓｅｃ以下である。一方、置換空調による空調空気の上昇速度は、０．５ｍ／ｓｅｃ以下の微風であり、置換空調対象によって数ｍｍ／ｓｅｃ〜数１０ｃｍ／ｓｅｃに設定されるため、オイルミストは空調空気と共に上昇して天井ゾーン１６に移送できることとなる。 In general, the final sedimentation rate of particles having a density ρ of 1 g / cm 3 and a particle size of 1 μm is 0.03 mm / sec, and the density ρ of oil mist is usually 1 g / cm 3 or less, and the particle size is also 1 μm or less. Since it is the majority, the maximum terminal sedimentation rate of oil mist is 0.03 mm / sec or less. On the other hand, the rising speed of the conditioned air by the replacement air conditioning is a slight wind of 0.5 m / sec or less, and is set to several mm / sec to several tens of cm / sec depending on the target of the replacement air conditioning. Therefore, the oil mist rises with the conditioned air. Thus, it can be transferred to the ceiling zone 16.
また、オイルミスト発生源１１に接続するオイルミストコレクタ１２の排気口を天井ゾーン１６に向けて設けることで、オイルミストはオイルミスト発生ゾーン１３内で拡散することなく天井ゾーン１６に移送できる。 Further, by providing the exhaust port of the oil mist collector 12 connected to the oil mist generation source 11 toward the ceiling zone 16, the oil mist can be transferred to the ceiling zone 16 without diffusing in the oil mist generation zone 13.
なおオイルミスト発生源１１から発生するオイルミスト濃度にもよるが、オイルミスト濃度が低ければ、必ずしもオイルミストコレクタ１２を接続する必要はない。 Although depending on the concentration of oil mist generated from the oil mist generation source 11, if the oil mist concentration is low, it is not always necessary to connect the oil mist collector 12.
このようにオイルミスト発生ゾーン１３内を置換空調し、温度成層により発生したオイルミストの大部分を作業エリア１４に拡散せずに天井ゾーン１６に移送し、排気ファン１７から高濃度のオイルミストを含む空気を外部に排気し、その排気量に見合って外気を外気導入ファン１８から導入することで、オイルミストの効率の良い除去が行える。 The oil mist generation zone 13 is replaced and air-conditioned in this way, and most of the oil mist generated by temperature stratification is transferred to the ceiling zone 16 without diffusing into the work area 14, and high-concentration oil mist is discharged from the exhaust fan 17. The air contained therein is exhausted to the outside, and the outside air is introduced from the outside air introduction fan 18 in accordance with the amount of exhaust, so that the oil mist can be efficiently removed.
また、吸込ダクト２１の吸込口２４から吸い込まれる空気には高濃度のオイルミスト吸い込まれることとなる。オイルミスト発生ゾーン１３内を置換空調する際には、循環空気量が少なく、吸込口２４を下方に向けておくと、オイルミストが気流と共に吸い込まれずに吸込口２４に溜まって滴下することになりやすいため、吸込口２４を上方に向けることで、その不具合を解消できる。この空気と共に吸い込んだ高濃度のオイルミストは、吸込側接続ダクト２２内に設けたミストエリミネータ２６で除去し、除去後の清浄な空気を空気調和機１５に循環する。 In addition, high-concentration oil mist is sucked into the air sucked from the suction port 24 of the suction duct 21. When the air-conditioning inside the oil mist generating zone 13 is replaced and air-conditioning is small, if the suction port 24 is directed downward, the oil mist will not be sucked in along with the airflow but will accumulate in the suction port 24 and drop. Since it is easy, the problem can be solved by directing the suction port 24 upward. The high-concentration oil mist sucked together with the air is removed by a mist eliminator 26 provided in the suction-side connection duct 22, and the clean air after removal is circulated to the air conditioner 15.
ミストエリミネータ２６によるオイルミストの除去は、下降流で除去するため、気流から分離したオイルミストの分離が容易であると共にドレインパイプ２７から排出でき、また水噴霧も併用して行えると共に設置したままミストエリミネータ２６を水洗浄してメンテナンスすることも可能である。 Since the oil mist is removed by the mist eliminator 26 in a descending flow, the oil mist separated from the air current can be easily separated and discharged from the drain pipe 27, and water spray can be used together, and the mist is left installed. It is also possible to maintain the eliminator 26 by washing it with water.
このように本発明は、工作機械などのオイルミスト発生源１１を設置したオイルミスト発生ゾーン１３を置換空調することで、オイルミスト発生ゾーン１３で発生するオイルミストを熱上昇流と共に天井ゾーン１６に移送しこれを外部に排気することで、作業空間１０の空調を行いつつ作業空間１０へのオイルミストの拡散を防止できるものである。 As described above, the present invention replaces and air-conditions the oil mist generation zone 13 in which the oil mist generation source 11 such as a machine tool is installed, so that the oil mist generated in the oil mist generation zone 13 is transferred to the ceiling zone 16 together with the heat rising flow. By transferring and exhausting the air outside, it is possible to prevent the oil mist from diffusing into the work space 10 while air-conditioning the work space 10.
次に、図４〜図６によりオイルミスト発生ゾーン１３を置換空調する際の吹出部と吸込部の配置の変形例を説明する。 Next, a modified example of the arrangement of the blow-out portion and the suction portion when the oil mist generation zone 13 is replaced and air-conditioned will be described with reference to FIGS.
図４は、空気調和機１５の吸込口を上部に形成し、その空気調和機１５の上部にミストエリミネータ２６を設置し、空気調和機１５の前面下部の吹出口２８から空調空気をオイルミスト発生ゾーン１３に向けて吹き出すようにしたものである。 FIG. 4 shows that an air inlet of the air conditioner 15 is formed at the upper part, a mist eliminator 26 is installed at the upper part of the air conditioner 15, and oil mist is generated from the air outlet 28 at the lower front of the air conditioner 15. It blows out toward the zone 13.
この図４の実施の形態では、作業エリア１４とオイルミスト発生ゾーン１３とが置換空調されることとなり、作業エリア１４にオイルミスト発生ゾーン１３からオイルミストが拡散しても天井ゾーン１６に移送できる。 In the embodiment of FIG. 4, the work area 14 and the oil mist generation zone 13 are replaced and air-conditioned, and can be transferred to the ceiling zone 16 even if oil mist diffuses from the oil mist generation zone 13 to the work area 14. .
図５の実施の形態においては、作業エリア１４の床面に中空の作業通路台３０を設置し、その作業通路台３０と空気調和機１５を給気管３１で接続し、作業通路台３０に、オイルミスト発生ゾーン１３に空調空気を吹き出す吹出口３２を形成したものである。 In the embodiment of FIG. 5, a hollow work passage base 30 is installed on the floor surface of the work area 14, the work passage base 30 and the air conditioner 15 are connected by an air supply pipe 31, An air outlet 32 is formed in the oil mist generating zone 13 to blow out air-conditioned air.
この実施の形態においては、作業通路台３０の吹出口３２から空調空気を、オイルミスト発生ゾーン１３の下部に直接吹き出すため、オイルミスト発生ゾーン１３を確実に置換空調することができると共に作業通路台３０上を作業員が移動しても空調空気が攪乱されることもない。 In this embodiment, since the conditioned air is directly blown out from the outlet 32 of the work passage table 30 to the lower portion of the oil mist generation zone 13, the oil mist generation zone 13 can be reliably replaced and air-conditioned. Even if an operator moves over 30, the conditioned air is not disturbed.
図６の実施の形態においては、空気調和機１５から吹き出す空調空気を誘引ユニット３４により作業エリア１４内の空気を誘引してオイルミスト発生ゾーン１３に吹き出すように構成したものである。 In the embodiment of FIG. 6, the conditioned air blown from the air conditioner 15 is configured to draw air in the work area 14 by the induction unit 34 and blow it out to the oil mist generation zone 13.
置換空調においては、空気調和機１５から吹き出す風量は、一般の空気調和機に比べて少なく設定されるが、誘引ユニット３４を用いて作業エリア１４内の空気を誘引してオイルミスト発生ゾーン１３に吹き出すことで、少ない風量でもオイルミスト発生ゾーン１３での置換空調による上昇流速度を増加させることが可能となる。 In the replacement air conditioning, the amount of air blown from the air conditioner 15 is set to be smaller than that of a general air conditioner. However, the air in the work area 14 is attracted to the oil mist generation zone 13 using the induction unit 34. By blowing out, it is possible to increase the upward flow speed due to the replacement air conditioning in the oil mist generation zone 13 even with a small air volume.
以上本発明の実施の形態を説明したが、本発明は、上述の実施の形態に限定されるものではなく、種々の変形が可能である。例えば天井ゾーン１６で外気導入ファン１８と排気ファン１７で外気の給気と高濃度のオイルミストを含んだ空気を排気する例で説明したが、作業空間１０の天井部にベンチレータやルーフファンを設けて排気するようにしてもよい。またオイルミスト発生ゾーン１３で発生するオイルミスト量が多く、天井ゾーン１６に高濃度のオイルミストが溜まる場合には、オイルミスト発生ゾーン１３の上方を除いて、天井ゾーン１６の汚染域と清浄域間を仕切板により仕切るように構成してもよい。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, in the ceiling zone 16, the outside air introduction fan 18 and the exhaust fan 17 have been described as an example in which outside air is supplied and air containing high-concentration oil mist is exhausted. May be exhausted. In addition, when the amount of oil mist generated in the oil mist generation zone 13 is large and high concentration oil mist accumulates in the ceiling zone 16, the contaminated area and the clean area in the ceiling zone 16 except for the area above the oil mist generation zone 13. You may comprise so that a space may be partitioned off with a partition plate.
１０ 作業空間
１１ オイルミスト発生源
１３ オイルミスト発生ゾーン
１６ 天井ゾーン
10 Working Space 11 Oil Mist Generation Source 13 Oil Mist Generation Zone 16 Ceiling Zone
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011194782A JP5794867B2 (en) | 2011-09-07 | 2011-09-07 | Oil mist processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011194782A JP5794867B2 (en) | 2011-09-07 | 2011-09-07 | Oil mist processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013056379A JP2013056379A (en) | 2013-03-28 |
| JP5794867B2 true JP5794867B2 (en) | 2015-10-14 |
Family
ID=48132725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011194782A Active JP5794867B2 (en) | 2011-09-07 | 2011-09-07 | Oil mist processing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5794867B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6325508B2 (en) | 2015-11-11 | 2018-05-16 | ファナック株式会社 | Mist removal system and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05115725A (en) * | 1991-10-30 | 1993-05-14 | Taikisha Ltd | Soot removing device |
| JPH0570615U (en) * | 1992-02-27 | 1993-09-24 | 新東ダストコレクタ株式会社 | Dust collector for machine tools |
| JP4041677B2 (en) * | 2002-02-05 | 2008-01-30 | アイシン機工株式会社 | Air conditioner for oil mist removal |
| JP2010139200A (en) * | 2008-12-15 | 2010-06-24 | Panasonic Corp | Air flow control device |
| JP5490485B2 (en) * | 2009-10-16 | 2014-05-14 | 高砂熱学工業株式会社 | Replacement ventilation equipment for large space rooms |
-
2011
- 2011-09-07 JP JP2011194782A patent/JP5794867B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013056379A (en) | 2013-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101698131B (en) | Air treatment equipment | |
| JP5794867B2 (en) | Oil mist processing system | |
| CN211372645U (en) | Thousand-level dust-free room air conditioning system | |
| TWI609156B (en) | Clean air blowoff device | |
| KR20150117390A (en) | dust collector for composition material manufacturing machine | |
| JPWO2020040273A1 (en) | Local air purifier | |
| KR100846663B1 (en) | Working table for cutting a tissue of plant into small parts | |
| WO2019111451A1 (en) | Push hood | |
| JP5759698B2 (en) | Oil mist removal method using oil mist collector | |
| JP2010185586A (en) | Air purifying system | |
| JP2010096497A (en) | Constant flow blowoff push hood | |
| JP4660816B2 (en) | Air purification system in a clean room | |
| JP2018176041A (en) | Dust recovery machine | |
| JP2011131131A (en) | Welding fume dust collection system | |
| JP5652917B2 (en) | Clean room | |
| CN215145185U (en) | Automatic cutting chip cleaning device of cutting machine and electric heating wall bounding wall cutting machine | |
| JP2007178065A (en) | Air returning device for clean room | |
| KR20100103130A (en) | Removal system | |
| JP7513491B2 (en) | Chip and debris removal device | |
| JP7383548B2 (en) | Dust collectors and systems | |
| KR20140056194A (en) | Indoor air density difference using air conditioner | |
| CN214307446U (en) | Welding shop new trend replacement system | |
| CN212330942U (en) | Novel superclean bench | |
| JP2014098519A (en) | Induced airflow generator | |
| JPS61168735A (en) | Clean room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140829 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20150514 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20150519 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150615 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150804 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150811 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5794867 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |