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JP3503083B2 - Dust collection member with pressure drop gradient - Google Patents

Dust collection member with pressure drop gradient

Info

Publication number
JP3503083B2
JP3503083B2 JP29807294A JP29807294A JP3503083B2 JP 3503083 B2 JP3503083 B2 JP 3503083B2 JP 29807294 A JP29807294 A JP 29807294A JP 29807294 A JP29807294 A JP 29807294A JP 3503083 B2 JP3503083 B2 JP 3503083B2
Authority
JP
Japan
Prior art keywords
filter
oil
pressure loss
gas
dust collecting
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.)
Expired - Fee Related
Application number
JP29807294A
Other languages
Japanese (ja)
Other versions
JPH08131739A (en
Inventor
正博 今西
武久 木ノ山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duskin Co Ltd
Original Assignee
Duskin Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Duskin Co Ltd filed Critical Duskin Co Ltd
Priority to JP29807294A priority Critical patent/JP3503083B2/en
Publication of JPH08131739A publication Critical patent/JPH08131739A/en
Application granted granted Critical
Publication of JP3503083B2 publication Critical patent/JP3503083B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Ventilation (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は粉塵或いはガス流中のカ
ーボン等の除去に利用可能な集塵部材に係り、特に微細
な油粒子(油ミスト)や油蒸気を含むガス流からこれら
油ミストおよび油蒸気を効率良く除去するよう構成した
集塵部材に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting member that can be used to remove dust or carbon in a gas stream, and particularly to a gas stream containing fine oil particles (oil mist) or oil vapor. And a dust collecting member configured to remove oil vapor efficiently.

【0002】[0002]

【従来の技術】例えばホテルや飲食店の厨房においては
調理過程で油が微細粒子(ミスト)状或いは蒸気となっ
て大量に発生する。このような油ミスト又は油蒸気、場
合によっては水蒸気も含有する気体(以下「油含有気
体」と称する)をそのまま外部に排出することは大気汚
染の一因となり、また排気ダクト内に付着した油が発火
して火災を生じる危険性もある。このため油含有気体は
外部に排出される前に含有する油分を除去する必要があ
り、油分除去用に各種の装置が提案されかつ現に用いら
れている。
2. Description of the Related Art For example, in a kitchen of a hotel or a restaurant, a large amount of oil is formed into fine particles (mist) or vapor during the cooking process. Discharging such oil mist or oil vapor, or gas containing steam in some cases (hereinafter referred to as "oil-containing gas") to the outside as it is is one of the causes of air pollution, and oil adhering to the exhaust duct. There is also a risk of fire causing a fire. For this reason, it is necessary to remove the oil content contained in the oil-containing gas before it is discharged to the outside, and various devices have been proposed and are currently used for removing the oil content.

【0003】[0003]

【発明が解決しようとする課題】この種の従来型油除去
装置のうち、例えば油蒸気を除去するものとして、活性
炭等の吸着材が充填されたフィルタを用いて油含有気体
の油分を濾過・吸着除去するもの、或いは邪魔板や多孔
板により油含有気体の流路を急激に変化させたり或いは
この油含有気体を壁面に衝突させる等により含有する油
分を除去する慣性衝突法によるもの等が採用されてい
る。これらの方法は、例えば濾過方式では捕集効率を高
くすることができるものの捕集した油分の除去効率が低
いため、フィルタの目詰まりにより急激な圧力損失の上
昇が生じ、また慣性衝突方式では捕集した油分の除去の
効率は高いものの、油含有気体中から油分そのものを効
率良く除去するためには油含有気体の流速を高めねばな
らず、送風装置の大容量化等装置の運転コストが高くな
る等、それぞれ一長一短がある。
Among the conventional oil removing devices of this kind, for removing oil vapor, for example, a filter filled with an adsorbent such as activated carbon is used to filter the oil content of the oil-containing gas. Adsorption and removal, or an inertial collision method that removes oil content by suddenly changing the flow path of oil-containing gas with baffle plates or perforated plates or by colliding this oil-containing gas with the wall surface Has been done. These methods, for example, can increase the collection efficiency in the filtration method, but the removal efficiency of the collected oil is low, so that a rapid increase in pressure loss occurs due to the clogging of the filter, and in the inertial collision method, Although the efficiency of removing the collected oil is high, in order to efficiently remove the oil itself from the oil-containing gas, the flow velocity of the oil-containing gas must be increased, and the operating cost of the device is high due to the large capacity of the air blower. There are advantages and disadvantages to each.

【0004】何れにせよ、上記何れの方式もその技術目
的は装置内に流入する油含有気体中からの油分の捕集効
率を向上させること、即ち装置に流入した後の油含有気
体からの油分の捕集効率を向上させること、更に場合に
よっては捕集した油分をフィルタから除去することにそ
の力点が置かれており、油含有気体の吸引の効率にその
ものに関して集塵部材に技術的配慮がなされることは殆
ど無かった。
In any case, the technical purpose of any of the above-mentioned methods is to improve the efficiency of collecting the oil component from the oil-containing gas flowing into the device, that is, the oil component from the oil-containing gas after flowing into the device. The important point is to improve the collection efficiency of the oil, and in some cases to remove the collected oil from the filter. Little was done.

【0005】図7は従来型の集塵部材が設置された油捕
集装置(「グリスフィルタ」と通称される)における油
含有気体の吸引状態を示す。20は油捕集装置であっ
て、例えば下方に向かってやや傾斜した状態で集塵部材
21が図面の奥行き方向に複数枚設置されている。油含
有気体は装置内或いはこの装置に接続するダクトに設置
された誘引型の送風機(IDF/図示せず))により装
置内に吸引され、かつ集塵部材21が濾過方式の部材で
あると慣性衝突方式の部材であるとに係わらず、これら
集塵部材21を通過する際に含有する油分が捕集され、
かつ捕集された油分は油溜22を経て外部に排出され
る。
FIG. 7 shows a suction state of an oil-containing gas in an oil collecting device (commonly called a "grease filter") provided with a conventional dust collecting member. Reference numeral 20 denotes an oil collecting device, and a plurality of dust collecting members 21 are installed in the depth direction of the drawing in a state of being slightly inclined downward, for example. The oil-containing gas is sucked into the device by an induction type blower (IDF / not shown) installed in the device or in a duct connected to this device, and the dust collecting member 21 is inertial when it is a member of a filtration system. Despite being a collision type member, the oil content contained when passing through these dust collecting members 21 is collected,
Moreover, the collected oil is discharged to the outside through the oil sump 22.

【0006】従来、上記装置に取り付けられる集塵部材
21の正面部分(吸引面)における圧力損失の分布は濾
過方式、慣性衝突方式に係わり無く均一であることが当
然とされており、集塵部材21は吸引面全体で均等に気
体を吸収することに別段技術的な疑問は生じていなかっ
た。
Conventionally, it is natural that the distribution of the pressure loss in the front portion (suction surface) of the dust collecting member 21 attached to the above apparatus is uniform regardless of the filtering method and the inertial collision method. No. 21 had no particular technical doubt in absorbing gas evenly over the entire suction surface.

【0007】一方、厨房等においては殆どの場合、例え
ばフライパン等の調理器具23に代表されるように、特
定の部分から油含有気体が発生する。油捕集装置は厨房
の天井面或いはこれに近い部分に設置され、上昇して来
る油含有気体を吸引するようになっている。この場合、
上昇して来る油含有気体Gは当然のことながら発生源で
ある調理器具23に近い部分の方が濃度が高く、上昇す
るにつれて室内の空気中に拡散されて濃度が低下するこ
とになる。ここで、従来の集塵部材は前述の如くその吸
引面に於いて均等に気体を吸収するため、調理器具23
に近い集塵部材下部と室内の空気A中に拡散した上部と
でほぼ同量の吸引を行うことになる。即ち集塵部材21
の上部においては吸引する必要のない室内空気Aも相当
量吸引してしまうため、室内に拡散した油含有気体Gの
ほぼ全量を吸引するためには大量の気体を吸引する必要
生じ、送風機の運転コストを上昇させる共に、濃度の低
下した油含有気体中から油分の除去を行うため油捕集効
率も低下してしまう。
On the other hand, in most cases, in a kitchen or the like, an oil-containing gas is generated from a specific portion, as represented by a cooking utensil 23 such as a frying pan. The oil collecting device is installed on the ceiling surface of the kitchen or a portion close to the ceiling surface, and sucks the rising oil-containing gas. in this case,
As a matter of course, the rising concentration of the oil-containing gas G is higher in the portion near the cooking utensil 23 that is the generation source, and as the temperature rises, the concentration of the oil-containing gas G is reduced by being diffused into the air in the room. Here, since the conventional dust collecting member absorbs the gas evenly on the suction surface as described above, the cooking utensil 23
Nearly the same amount of suction is performed by the lower part of the dust collecting member and the upper part diffused in the air A in the room. That is, the dust collecting member 21
Since a large amount of room air A that does not need to be sucked is also sucked in the upper part of the above, it is necessary to suck a large amount of gas in order to suck almost all of the oil-containing gas G that has diffused into the room. At the same time as the cost is increased, the oil collection efficiency is also reduced because the oil content is removed from the oil-containing gas having the reduced concentration.

【0008】さらに濃度の高い油含有気体が通過する集
塵部材21下部から順次目詰まりして当該部分の圧力損
失が上昇するため、時間の経過と共に集塵部材21に於
ける気体の吸引の中心は油含有気体濃度の低い上部に移
ってしまう。この結果吸引する必要のない室内空気Aの
相対的な吸引量がさらに増加し、油含有気体の排除と油
含有気体中の油分の捕集効率を上げるためにより一層風
速を上げざるを得ないという悪循環に陥ってしまう。
[0008] Since the dust collecting member 21 through which the gas having a higher concentration of gas passes is sequentially clogged and the pressure loss of the portion increases, the center of gas suction in the dust collecting member 21 with the passage of time. Moves to the upper part where the oil-containing gas concentration is low. As a result, the relative suction amount of the indoor air A that does not need to be sucked is further increased, and the wind speed must be further increased in order to eliminate the oil-containing gas and increase the efficiency of collecting the oil component in the oil-containing gas. Fall into a vicious circle.

【0009】[0009]

【課題を解決するための手段】本発明は上述の問題点に
鑑み構成されたものであって、油捕集装置等の集塵装置
に配置される集塵部材の気体吸引面のうち、油含有気体
等集塵対象となる気体の発生源に近接する部分の圧力損
失が他の部分よりも低くなるように当該集塵部材の気体
吸引面に圧力損失の勾配が生じるように構成したことを
特徴とする集塵部材である。
SUMMARY OF THE INVENTION The present invention is constructed in view of the above-mentioned problems, and is one of the gas suction surfaces of a dust collecting member arranged in a dust collecting apparatus such as an oil collecting apparatus. The gas suction surface of the dust collecting member is configured to have a gradient of pressure loss so that the pressure loss of the portion close to the generation source of the gas to be dust-collected such as the contained gas is lower than the other portions. It is a characteristic dust collecting member.

【0010】[0010]

【作用】油含有気体の発生源に近い濃度の高い部分にお
ける集塵部材の油含有気体の吸引量が他の部分よりも大
きいため、油含有気体の大半は空気中に拡散される前に
吸引され、かつ吸引された油含有気体中から油分が効率
的に除去される。
[Function] Since the amount of suction of the oil-containing gas of the dust collecting member in the portion having a high concentration close to the source of the oil-containing gas is larger than that in other portions, most of the oil-containing gas is sucked before being diffused into the air The oil is efficiently removed from the sucked and sucked oil-containing gas.

【0011】[0011]

【実施例】以下本発明の実施例を図面を参考に具体的に
説明する。
Embodiments of the present invention will be specifically described below with reference to the drawings.

【0012】図1は本発明の第1の実施例を示す。符号
1は油含有気体Gが最初に流入する第1のフィルタであ
って、図示の構成は濾過式フィルタを示す。またこの濾
過式フィルタは例えば金属フォームと称される金属製の
多孔体、或いは不織布等何れの構成でも良い。この第1
のフィルタ1は濾過対象である油含有気体Gの濃度が高
い部分、即ち発生源に近接する位置、図示の場合は当該
第1のフィルタ1の下方に発生源がある構成を示してあ
るので、フィルタ高さHの下方部分ほど通過流体の圧力
損失(静圧)が低減されるよう構成されている。以下こ
のようにフィルタの気体吸引面における圧力損失の分布
が特定の方向に向かって変化することを「圧損勾配」と
称することにする。即ち図示の構成では第1のフィルタ
1において油含有気体Gの濃度がより高いフィルタ下部
ほど圧力損失が低減されるよう圧損勾配が設定される。
FIG. 1 shows a first embodiment of the present invention. Reference numeral 1 is a first filter into which the oil-containing gas G first flows, and the configuration shown in the drawing shows a filter. Further, this filtration type filter may have any structure such as a metal porous body called metal foam or a non-woven fabric. This first
Since the filter 1 of FIG. 1 shows a portion where the concentration of the oil-containing gas G to be filtered is high, that is, a position close to the generation source, in the illustrated case, the generation source is below the first filter 1, The lower part of the filter height H is configured to reduce the pressure loss (static pressure) of the passing fluid. Hereinafter, such a change in the pressure loss distribution on the gas suction surface of the filter in a specific direction will be referred to as a “pressure loss gradient”. That is, in the illustrated configuration, the pressure loss gradient is set so that the pressure loss is reduced in the lower portion of the filter where the concentration of the oil-containing gas G is higher in the first filter 1.

【0013】以上の圧損勾配の実現は、各種の方法が考
えられる。先ず当該フィルタ1が濾過フィルタである場
合には、フィルタ全体の開口率を同じに設定されるてい
る場合にはフィルタ下方ほど流体の通過断面積を減少さ
せる方法、即ちフィルタの厚さを減少させる方法、また
同じ厚さにフィルタを形成した場合には下方ほど開口率
を高める方法、或いは両者を併用する方法等が考えられ
る。
Various methods are conceivable for realizing the above pressure drop gradient. First, in the case where the filter 1 is a filtration filter, when the aperture ratio of the entire filter is set to be the same, the method of decreasing the passage cross-section of the fluid toward the lower part of the filter, that is, the thickness of the filter is decreased. A method, a method of increasing the aperture ratio toward the lower side when the filters are formed with the same thickness, a method of using both of them, and the like can be considered.

【0014】また慣性衝突方式のフィルタの場合にはや
はり開口比率に変化をもたらしたり、或いは油含有気体
が通過する邪魔板の幅を変化させる等して濾過式フィル
タの場合と同様の圧損勾配を設定することが可能であ
る。
In the case of an inertial collision type filter, the opening ratio is changed, or the width of the baffle through which the oil-containing gas passes is changed to obtain a pressure loss gradient similar to that of the filtration filter. It is possible to set.

【0015】次に符号2は前記第1のフィルタ1の背後
に配置された第2のフィルタであって、本実施例の構成
ではこの第2のフィルタ2はフィルタの気体流入面全体
において圧損勾配が無い、すわなち圧力損失が均一とな
るよう構成され、これら第1のフィルタ1および第2の
フィルタ2が一体化されることにより集塵部材3が形成
される。
Next, reference numeral 2 is a second filter arranged behind the first filter 1. In the structure of this embodiment, the second filter 2 has a pressure loss gradient over the entire gas inflow surface of the filter. That is, the first filter 1 and the second filter 2 are integrated so that the dust collecting member 3 is formed.

【0016】図2は以上の構成の集塵部材3が取り付け
られた油捕集装置における油含有気体Gの吸引状態を示
す。油捕集装置20(装置自体は図7の従来型装置がそ
のまま利用可能)には本実施例の集塵部材3が両面に取
り付けられている。因に、油捕集装置20が壁面に取り
付けられ、同装置の一面にのみ集塵部材3が取り付けら
れる構成の装置もあるが、本集塵部材3はこのような一
面型の装置に対する取り付けももとより可能である。図
示の油捕集装置20において、油含有気体Gの発生源と
しての調理器具23から立ち昇った油含有気体Gは、発
生源に近くかつ圧力損失の少ない集塵部材3の下部にお
いて、室内に拡散される前の濃度が高い状態でその大半
が装置20内に吸引される。なお、時間の経過と共に油
含有気体Gの通過量の多い集塵部材下部における油分の
付着量は相対的に多くなるが、予め圧力損失が低く設定
されているため、圧損勾配ゼロの従来型集塵部材に比較
してたこのフィルタ下部に於ける圧力損失の増加は低く
押さえられる。
FIG. 2 shows the suction state of the oil-containing gas G in the oil collecting device to which the dust collecting member 3 having the above structure is attached. The dust collecting member 3 of the present embodiment is attached to both sides of the oil collecting device 20 (the device itself can use the conventional device of FIG. 7 as it is). Incidentally, there is an apparatus in which the oil collecting device 20 is attached to the wall surface and the dust collecting member 3 is attached only to one surface of the device, but the dust collecting member 3 is also attached to such a one-sided device. It is possible from the beginning. In the illustrated oil collecting device 20, the oil-containing gas G rising from the cooking utensil 23 as the generation source of the oil-containing gas G enters the room at the lower part of the dust collecting member 3 near the generation source and with little pressure loss. Most of it is sucked into the device 20 in a high concentration before being diffused. Note that the amount of oil adhered to the lower part of the dust collecting member where the amount of oil-containing gas G that has passed is relatively large with the passage of time, but since the pressure loss is set to a low level in advance, the conventional type dust collector with zero pressure loss gradient is used. The increase in pressure loss in the lower part of the filter as compared with the dust member is suppressed low.

【0017】また第1のフィルタ1で除去されなかった
油分は背後の第2のフィルタ2で除去されるが、この場
合圧損勾配ゼロの第2のフィルタ2においては油含有気
体Gの通過量の多いフィルタ下部の圧力損失が徐々に上
昇し、第2のフィルタに流入しようとする油含有気体G
は時間の経過と共に図示の如く第2のフィルタの上方か
ら流入しようとする傾向を示すことになる。この結果、
経時的にみると第2のフィルタ2の全体が油分除去に過
不足無く利用されることになる。
The oil which has not been removed by the first filter 1 is removed by the second filter 2 in the back. In this case, the passage amount of the oil-containing gas G is reduced in the second filter 2 having a zero pressure loss gradient. A large amount of oil-containing gas G that flows into the second filter due to a gradual increase in pressure loss under the filter
Will tend to flow in from above the second filter as shown in the figure over time. As a result,
When viewed over time, the entire second filter 2 can be used for removing oil without excess or deficiency.

【0018】図3は第2の実施例を示す。この実施例で
は第1のフィルタ1について前記第1の実施例と同様油
含有気体Gの濃度の高いフィルタ下部ほど圧力損失が低
下するよう圧損勾配が設定されているが、この第1のフ
ィルタ1の背後に配置されている第2のフィルタ4は逆
にフィルタ上部の方が圧力損失が低くなるよう圧損勾配
が設定されている。また第2のフィルタ4の背後には前
記第1の実施例における第2のフィルタ2と同様の圧損
勾配ゼロの第3のフィルタ5が配置されている。図4の
(A)、(B)、(C)は各フィルタ1、4、5におけ
る高さH方向の圧力損失の変化(圧損勾配)をそれぞれ
示している。また各線図の(1)、(4)、(5)はこ
れら各フィルタの符号と対応している。
FIG. 3 shows a second embodiment. In this embodiment, the pressure loss gradient is set so that the pressure loss decreases in the lower part of the filter where the concentration of the oil-containing gas G is higher in the first filter 1 as in the first embodiment. On the contrary, the pressure loss gradient of the second filter 4 arranged behind the filter is set so that the pressure loss is lower in the upper part of the filter. Further, behind the second filter 4, there is arranged a third filter 5 having a zero pressure loss gradient similar to the second filter 2 in the first embodiment. 4A, 4B, and 4C show changes in pressure loss (pressure loss gradient) in the height H direction in the filters 1, 4, and 5, respectively. Further, (1), (4), and (5) in each diagram correspond to the signs of these filters.

【0019】この実施例では第1のフィルタ1において
主としてフィルタ下部を通過した油含有気体Gが第2の
フィルタ4においては反転してフィルタ上部を中心に通
過するよう構成することによって各フィルタのフィルタ
面のより一層の利用と、第1及び第2のフィルタが濾過
式フィルタであるか慣性・衝突式フィルタであるか否か
を問わず、当該第1のフィルタ1から第2のフィルタ4
に至る間に油含有気体Gの流路を変化させ、この流路変
更による慣性によっても油分の除去が可能になるよう構
成されている。
In this embodiment, the oil-containing gas G which has mainly passed through the lower portion of the filter in the first filter 1 is inverted in the second filter 4 and passes through the upper portion of the filter, whereby the filter of each filter is filtered. Further utilization of the surface and whether the first and second filters are filtration filters or inertial / collision filters, the first filter 1 to the second filter 4
The flow path of the oil-containing gas G is changed in the course of, and the oil content can be removed by the inertia by changing the flow path.

【0020】図5および図6は第3の実施例であって、
前記第2の実施例における構成を前提にした構成となっ
ている。図中符号1Aは前記第2の実施例における第1
のフィルタに対応し、かつ圧損勾配も同様にフィルタ下
部の方が圧力損失低くなるように設定されているが、実
施例2の構成に比較してフィルタ全体の圧力損失を低く
押さえるよう構成されている。図6の(A)はこの状態
を示し、線図中(1)は前記実施例2の第1のフィルタ
1の圧損勾配を、また(1A)は本実施例における第1
のフィルタ1Aの圧損勾配を示す。同様にして背後に位
置する第2のフィルタ4Aも図6(B)の如く前記第2
の実施例の第2のフィルタ4と同様の圧損勾配を持ちな
がら全体として実施例2の第2のフィルタよりも圧力損
失が低くなるよう構成されている。但し各第1のフィル
タ1及び1Aの圧力損失の相違ΔP1に比較して第2の
フィルタの圧力損失の相違ΔP2はΔP1よりも小さく
設定されている。
FIG. 5 and FIG. 6 show a third embodiment,
The structure is based on the structure of the second embodiment. In the figure, reference numeral 1A is the first in the second embodiment.
The pressure loss gradient is set so that the pressure loss in the lower part of the filter is lower than that in the second embodiment. There is. 6A shows this state. In the diagram, (1) shows the pressure drop gradient of the first filter 1 of the second embodiment, and (1A) shows the first pressure drop in the present embodiment.
3 shows a pressure loss gradient of the filter 1A of FIG. Similarly, the second filter 4A located behind is also the second filter 4A as shown in FIG.
The pressure loss gradient is the same as that of the second filter 4 of the second embodiment, but the pressure loss is lower than that of the second filter of the second embodiment as a whole. However, compared to the pressure loss difference ΔP1 between the first filters 1 and 1A, the pressure loss difference ΔP2 between the second filters is set to be smaller than ΔP1.

【0021】5Aは第2のフィルタ4Aの背後に位置す
る第3のフィルタであり第2の実施例における第3のフ
ィルタ5と同様圧損勾配ゼロに設定されているものの、
前記第3のフィルタ5の圧力損失よりもΔP3だけ圧力
損失が小さく設定されている〔図6(C)参照〕。但し
当該ΔP3は前記ΔP2よりもさらに小さくなるよう設
定される。6は当該第3のフィルタ5Aの背後に配置さ
れた第4のフィルタであってやはり圧損勾配ゼロに設定
されている。
Reference numeral 5A designates a third filter located behind the second filter 4A, which is set to a pressure loss gradient of zero like the third filter 5 in the second embodiment.
The pressure loss is set to be smaller than the pressure loss of the third filter 5 by ΔP3 [see FIG. 6 (C)]. However, the ΔP3 is set to be smaller than the ΔP2. Reference numeral 6 denotes a fourth filter arranged behind the third filter 5A, which is also set to zero pressure loss gradient.

【0022】この実施例では第1および第2のフィルタ
の上下方向において相互に逆に圧損勾配が設定されると
共に、油含有気体Gの通過方向に対して各フィルタの圧
力損失が変化するよう構成されることにより油含有気体
Gの吸引と、油含有気体G中の油分の除去をより効率よ
く行うことが可能となる。
In this embodiment, the pressure loss gradients are set upside down in the vertical direction of the first and second filters, and the pressure loss of each filter changes in the passage direction of the oil-containing gas G. By doing so, it becomes possible to more efficiently perform the suction of the oil-containing gas G and the removal of the oil component in the oil-containing gas G.

【0023】以上本発明の構成を油含有気体G中から油
分を除去する場合を例に説明したが、もとより他の流体
に対しても利用可能である。
Although the structure of the present invention has been described by taking the case of removing the oil component from the oil-containing gas G as an example, it can be applied to other fluids as a matter of course.

【0024】[0024]

【発明の効果】本発明は以上具体的に説明した如く、油
捕集装置等の集塵装置に配置される集塵部材の流体吸引
面のうち、流体の発生源近傍等、当該流体が拡散してい
ない部分に近接する部分の圧力損失が他の流体吸引面よ
りも低くなるよう構成してあるので、処理対象流体が拡
散する前に集塵装置に効果的に吸引されることが可能と
なるため、流体の吸引速度を高めることなく経済的かつ
効果的に油捕集や集塵を実施することが可能となる。
As described above in detail, the present invention diffuses the fluid in the vicinity of the source of the fluid on the fluid suction surface of the dust collecting member arranged in the dust collecting apparatus such as the oil collecting apparatus. Since the pressure loss of the portion close to the non-treated portion is lower than that of other fluid suction surfaces, the fluid to be treated can be effectively sucked by the dust collector before diffusing. Therefore, it is possible to economically and effectively collect oil and collect dust without increasing the suction speed of the fluid.

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

【図1】本発明の第1の実施例を示す集塵部材断面概略
図である。
FIG. 1 is a schematic sectional view of a dust collecting member showing a first embodiment of the present invention.

【図2】本発明に係る集塵部材を設けた油捕集装置にお
ける油含有気体の吸引状態を示す油捕集装置の断面図で
ある。
FIG. 2 is a cross-sectional view of the oil collecting device showing a suction state of the oil-containing gas in the oil collecting device provided with the dust collecting member according to the present invention.

【図3】本発明の第2の実施例を示す集塵部材の断面概
略図である。
FIG. 3 is a schematic sectional view of a dust collecting member showing a second embodiment of the present invention.

【図4】(A)、(B)、(C)は図3に示す各フィル
タの高さ方向に於ける圧損勾配を示す線図である。
4 (A), (B) and (C) are diagrams showing the pressure loss gradient in the height direction of each filter shown in FIG.

【図5】本発明の第3の実施例を示す集塵部材の断面概
略図である。
FIG. 5 is a schematic cross-sectional view of a dust collecting member showing a third embodiment of the present invention.

【図6】(A)、(B)、(C)、(D)は図3に示す
各フィルタの高さ方向に於ける圧損勾配を示す線図であ
る。
6 (A), (B), (C), and (D) are diagrams showing pressure loss gradients in the height direction of the filters shown in FIG.

【図7】従来型集塵部材を設けた油捕集装置における油
含有気体の吸引状態を示す油捕集装置の断面図である。
FIG. 7 is a cross-sectional view of an oil collecting device showing a suction state of an oil-containing gas in the oil collecting device provided with a conventional dust collecting member.

【符号の説明】[Explanation of symbols]

1、1A 第1のフィルタ 2、4、4A 第2のフィルタ 3 集塵部材 5、5A 第3のフィルタ 6 第4のフィルタ 20 油捕集装置 A 室内空気 G 油含有気体 1,1A First filter 2, 4, 4A Second filter 3 Dust collector 5, 5A Third filter 6 Fourth filter 20 Oil collector A indoor air G oil-containing gas

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平5−245321(JP,A) 特開 平3−284317(JP,A) 実開 平4−1344(JP,U) 実開 昭59−132020(JP,U) 実開 昭60−74720(JP,U) 実開 昭62−179318(JP,U) 実開 昭54−155682(JP,U) (58)調査した分野(Int.Cl.7,DB名) F24C 15/20 B01D 46/10 F24F 7/06 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-245321 (JP, A) JP-A-3-284317 (JP, A) Actual opening 4-1344 (JP, U) Actual opening Sho-59- 132020 (JP, U) Actual development 60-74720 (JP, U) Actual development 62-179318 (JP, U) Actual development 54-155682 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F24C 15/20 B01D 46/10 F24F 7/06

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 粉塵、油粒子や水滴、或いは油蒸気等の
除去処理対象物を含む処理対象気体がフィルタを通過す
ることにより当該フィルタによって処理対象気体中の除
去処理対象物が捕集除去されるものにおいて、処理対象
気体が通過するフィルタは1以上設けられ、このうち少
なくとも処理対象気体が最初に流入する第1のフィルタ
の処理対象気体流入面は、当該処理対象気体の発生源等
当該処理対象気体の濃度が高い側に位置する部分ほど通
気体の圧力損失が少なくなるよう圧損勾配が設けられ
ていることを特徴とする圧損勾配を設けた集塵部材。
1. Dust, oil particles, water droplets, oil vapor, etc.
The gas to be processed including the object to be removed passes through the filter.
The filter to remove the gas in the process gas.
If the object to be removed is collected and removed,
Filter the gas passes is provided in one or more, processed gas inflow surface of the first filter this out at least the processing target gas is initially flows, the concentration sources such as the processed gas to be processed gas is high A dust collecting member provided with a pressure loss gradient, characterized in that a pressure loss gradient is provided so that the pressure loss of the passing gas decreases as it goes to the side.
【請求項2】 前記圧損勾配は、フィルタにおける気体
の通過断面積の多少により形成されるよう構成したこと
を特徴とする請求項1記載の圧損勾配を設けた集塵部
材。
2. The dust collecting member provided with a pressure drop gradient according to claim 1, wherein the pressure drop gradient is formed by the cross-sectional area of gas passing through the filter.
【請求項3】 前記圧損勾配は、フィルタにおける開口
面積の多少により形成されるよう構成したことを特徴と
する請求項1または2記載の圧損勾配を設けた集塵部
材。
3. The dust collecting member provided with the pressure loss gradient according to claim 1, wherein the pressure loss gradient is formed depending on the opening area of the filter.
【請求項4】 前記第1のフィルタの背後には第2のフ
ィルタが配置され、当該第2のフィルタの気体流入面は
第1のフィルタとは逆の圧損勾配が設けられていること
を特徴とする請求項1乃至3の何れかに記載の圧損勾配
を設けた集塵部材。
4. A second filter is arranged behind the first filter, and a gas inflow surface of the second filter is provided with a pressure loss gradient opposite to that of the first filter. The dust collecting member provided with the pressure loss gradient according to any one of claims 1 to 3.
JP29807294A 1994-11-08 1994-11-08 Dust collection member with pressure drop gradient Expired - Fee Related JP3503083B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29807294A JP3503083B2 (en) 1994-11-08 1994-11-08 Dust collection member with pressure drop gradient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29807294A JP3503083B2 (en) 1994-11-08 1994-11-08 Dust collection member with pressure drop gradient

Publications (2)

Publication Number Publication Date
JPH08131739A JPH08131739A (en) 1996-05-28
JP3503083B2 true JP3503083B2 (en) 2004-03-02

Family

ID=17854787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29807294A Expired - Fee Related JP3503083B2 (en) 1994-11-08 1994-11-08 Dust collection member with pressure drop gradient

Country Status (1)

Country Link
JP (1) JP3503083B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4994962B2 (en) * 2007-06-05 2012-08-08 財団法人 国際石油交流センター Gas-solid separator
JP5517739B2 (en) * 2010-05-19 2014-06-11 三菱電機株式会社 Ventilation equipment

Also Published As

Publication number Publication date
JPH08131739A (en) 1996-05-28

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