JP6310871B2 - Painting equipment - Google Patents

Painting equipment Download PDF

Info

Publication number
JP6310871B2
JP6310871B2 JP2015033000A JP2015033000A JP6310871B2 JP 6310871 B2 JP6310871 B2 JP 6310871B2 JP 2015033000 A JP2015033000 A JP 2015033000A JP 2015033000 A JP2015033000 A JP 2015033000A JP 6310871 B2 JP6310871 B2 JP 6310871B2
Authority
JP
Japan
Prior art keywords
cleaning
water
exhaust air
cleaning device
chamber
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
Application number
JP2015033000A
Other languages
Japanese (ja)
Other versions
JP2016155051A (en
Inventor
幸也 瀧澤
幸也 瀧澤
朋孝 三輪
朋孝 三輪
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.)
Taikisha Ltd
Original Assignee
Taikisha 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 Taikisha Ltd filed Critical Taikisha Ltd
Priority to JP2015033000A priority Critical patent/JP6310871B2/en
Priority to PCT/JP2016/051219 priority patent/WO2016136326A1/en
Publication of JP2016155051A publication Critical patent/JP2016155051A/en
Application granted granted Critical
Publication of JP6310871B2 publication Critical patent/JP6310871B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/46Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
    • B05B14/462Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material and separating the excess material from the washing liquid, e.g. for recovery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Description

本発明は塗装設備に関し、詳しくは、塗装室からの排出空気を器内風路に高速化して通過させるとともに、高速化した排出空気に洗浄水を散布して排出空気中の塗料ミストを散布洗浄水により捕捉する塗装排気浄化用の洗浄器として、第1及び第2の洗浄器をその順で空気流れ方向に直列に並べて塗装室からの排気風路に装備してある塗装設備に関する。   The present invention relates to a painting facility. More specifically, the exhaust air from the painting chamber is passed through the internal air passage at a high speed, and cleaning water is sprayed on the high-speed exhaust air to spray and wash the paint mist in the exhaust air. The present invention relates to a painting facility in which first and second washing devices are arranged in series in the air flow direction in that order as a washing device for purifying paint exhaust captured by water and are provided in an exhaust air passage from a painting chamber.

この種の塗装設備は、塗装室からの排気風路において空気流れ方向の下流側に装備される第2洗浄器の入口開口から上流側に向けて放出される洗浄騒音を、上流側の第1洗浄器に通過させることで減衰させ、これにより、洗浄効果は高いが発生騒音も大きい1つの洗浄器の装備だけで同等の洗浄効果を得るのに比べ、第1及び第2洗浄器により全体として所要の洗浄効果を確保しながら塗装室での騒音値の低減を図ったものである。(下記の特許文献1,2参照)   This type of painting equipment is configured to remove the cleaning noise released upstream from the inlet opening of the second cleaning device installed on the downstream side in the air flow direction in the exhaust air passage from the coating chamber. It is attenuated by passing it through the washer, and as a result, the first and second washer as a whole as compared to obtaining the same washing effect with only one washing device equipped with high washing effect but also large noise generated. The noise value in the painting room is reduced while ensuring the required cleaning effect. (See Patent Documents 1 and 2 below)

特開昭60−168560号公報JP 60-168560 A 特開平6−79207号公報JP-A-6-79207

ところで従来、この種の塗装設備では上記特許文献1,2などに見られるように、第2洗浄器の入口開口から放出される洗浄騒音や第2洗浄器の入口開口から放出されて構造壁などで一次反射した洗浄騒音が上流側の第1洗浄器の出口開口に直達するため、第2洗浄器からの放出洗浄騒音を上流側の第1洗浄器に通過させて減衰させるにしても、塗装室での騒音値の低減効果が未だ低い問題があった。   Conventionally, in this type of coating equipment, as seen in Patent Documents 1 and 2, etc., the cleaning noise emitted from the inlet opening of the second cleaner, the structural wall released from the inlet opening of the second cleaner, etc. In this case, the cleaning noise that is primarily reflected by the nozzle directly reaches the outlet opening of the upstream first cleaning device, so that even if the cleaning cleaning noise discharged from the second cleaning device is passed through the upstream first cleaning device and attenuated, the paint is applied. There was a problem that the effect of reducing the noise level in the room was still low.

この実情に鑑み、本発明の主たる課題は、合理的な改良により上記問題を効果的に解消する点にある。   In view of this situation, the main problem of the present invention is to effectively solve the above problem by rational improvement.

本発明の第1特徴構成は塗装設備に係り、その特徴は、
塗装室からの排出空気を器内風路に高速化して通過させるとともに、高速化した排出空気に洗浄水を散布して排出空気中の塗料ミストを散布洗浄水により捕捉する塗装排気浄化用の洗浄器として、第1及び第2の洗浄器をその順で空気流れ方向に直列に並べて前記塗装室からの排気風路に装備してある塗装設備であって、
前記第2洗浄器の入口開口を前記第1洗浄器の器壁に対して間隔を開けた状態で対向させ
前記第2洗浄器には、その入口開口から出口開口に向けて器内風路を高速通過する排出空気に洗浄水を散布する手段として、通過排出空気に対し洗浄水を噴出する洗浄水ノズルを設け、
前記第2洗浄器は、その入口開口から空気流れ方向の下流側ほど器内風路の横断面積が漸次的に小さくなる入口側テーパー部と、その入口側テーパー部に続いて器内風路の横断面積が急増する噴水室部と、その噴水室部に続いて器内風路の横断面積が急減する絞り部とがその順で空気流れ方向に並ぶ構成にし、
前記洗浄水ノズルは、前記噴水室部のうち空気流れ方向視において前記入口側テーパー部の出口領域から外側に外れた箇所に配置してある点にある。
The first characteristic configuration of the present invention relates to a painting facility,
Cleaning for paint exhaust purification that allows the exhaust air from the painting chamber to pass through the internal air passage at high speed, and sprays cleaning water on the high-speed exhaust air and captures the paint mist in the exhaust air with the spray cleaning water. As a vessel, the first and second cleaning devices are arranged in series in the air flow direction in that order, and are installed in the exhaust air passage from the coating chamber,
The inlet opening of the second cleaner is opposed to the wall of the first cleaner with a space therebetween ,
The second scrubber has a scrubbing water nozzle that spouts scrubbing water against the passing exhaust air as means for spraying the scrubbing water to the exhaust air passing through the internal air passage from the inlet opening toward the outlet opening at high speed. Provided,
The second scrubber has an inlet taper portion in which the cross-sectional area of the internal air passage gradually decreases toward the downstream side of the air flow direction from the inlet opening, and the internal air passage following the inlet taper portion. The fountain chamber part where the cross-sectional area increases rapidly and the throttle part where the cross-sectional area of the internal air passage decreases rapidly following the fountain chamber part are arranged in that order in the air flow direction,
The washing water nozzle is located at a location outside the fountain chamber portion outside the outlet region of the inlet side taper portion in the air flow direction view .

つまり、この構成によれば、第2洗浄器の入口開口から上流側に向けて放出される洗浄騒音は、第1洗浄器の器壁(詳しくは、器壁の外面)に衝突することで、減衰するとともに第1洗浄器の出口開口から外れた方向に一次反射し、その後、二次反射や三次反射を経て大きく減衰した洗浄騒音のみが上流側の第1洗浄器をその出口開口から上流側に向けて通過し、この通過過程においてそれら二次反射や三次反射の洗浄騒音が第1洗浄器における散布洗浄水に吸収されて更に減衰する。   That is, according to this configuration, the cleaning noise released toward the upstream side from the inlet opening of the second cleaning device collides with the wall of the first cleaning device (specifically, the outer surface of the device wall), Only the cleaning noise that attenuates and is primarily reflected in the direction away from the outlet opening of the first cleaning device, and then greatly attenuated through secondary reflection and tertiary reflection, causes the upstream first cleaning device to be upstream from the outlet opening. In this passing process, the secondary and tertiary reflection cleaning noises are absorbed by the sprayed cleaning water in the first cleaning device and further attenuated.

したがって、塗装室は実質的に、第2洗浄器との洗浄機能の分担で洗浄騒音も小さい第1洗浄器の入口開口から放出される洗浄騒音だけが侵入するのに近い状態にすることができ、これにより、従前のこの種の塗装設備に比べ、排出空気に対する全体としての洗浄効果を高く確保しながらないしは更に高めながら、塗装室の騒音値をさらに効果的に低減することができる。   Accordingly, the painting chamber can be substantially in a state where only the cleaning noise emitted from the inlet opening of the first cleaning device is small due to the sharing of the cleaning function with the second cleaning device, and the cleaning noise is invaded. As a result, the noise value of the painting chamber can be further effectively reduced while ensuring or further enhancing the overall cleaning effect on the exhausted air as compared with the conventional painting equipment of this type.

そしてまた、第2洗浄器の入口開口を第1洗浄器の器壁に対向させることで、第1及び第2洗浄器を配置する洗浄室もコンパクト化することができて、塗装設備の設置性を高めるとともに設備コストも低減することができる。   In addition, the cleaning chamber in which the first and second cleaning devices are arranged can be made compact by making the inlet opening of the second cleaning device face the wall of the first cleaning device, so that the installation property of the painting equipment can be improved. And the equipment cost can be reduced.

さらに、上記第1特徴構成では、Furthermore, in the first feature configuration,
前記第2洗浄器には、その入口開口から出口開口に向けて器内風路を高速通過する排出空気に洗浄水を散布する手段として、通過排出空気に対し洗浄水を噴出する洗浄水ノズルを設けるから、次の作用効果も奏する。The second scrubber has a scrubbing water nozzle that spouts scrubbing water against the passing exhaust air as means for spraying the scrubbing water to the exhaust air passing through the internal air passage from the inlet opening toward the outlet opening at high speed. Since it is provided, the following effects are also achieved.

つまり、本発明では前述の如く第1洗浄器の器壁に第2洗浄器の入口開口を対向させることから、第2洗浄器の配置及び姿勢が制限を受けるが、第2洗浄器として、排出空気に対し洗浄水ノズルから洗浄水を噴出するノズル型式の洗浄器を採用することで、上記制限のある状況下でも第2洗浄器を容易に配備することができ、これにより、第1及び第2洗浄器を含む洗浄部の構築を容易にすることができ、また、その分、設備コストも更に安価にすることができる。In other words, in the present invention, since the inlet opening of the second cleaner is opposed to the wall of the first cleaner as described above, the arrangement and posture of the second cleaner are limited. By adopting a nozzle-type cleaning device that ejects cleaning water from the cleaning water nozzle to the air, the second cleaning device can be easily deployed even under the above-mentioned limited conditions. The construction of the cleaning section including the two cleaning devices can be facilitated, and the equipment cost can be further reduced accordingly.

また、ノズル形式の洗浄器は一般的に、流下形式の洗浄器に比べ器内風路を通過する排出空気の圧力損失を小さくすることができるから、その分、第2洗浄器における排出空気の洗浄効果(ひいては、第1及び第2洗浄器の全体としての洗浄効果)も高めることができる。Further, since the nozzle type washer can generally reduce the pressure loss of the exhaust air passing through the internal air passage as compared with the flow down type washer, the amount of the exhaust air in the second washer is correspondingly reduced. The cleaning effect (and consequently the cleaning effect of the first and second cleaning devices as a whole) can be enhanced.

しかも、上記第1特徴構成では、Moreover, in the first feature configuration,
前記第2洗浄器は、その入口開口から空気流れ方向の下流側ほど器内風路の横断面積が漸次的に小さくなる入口側テーパー部と、その入口側テーパー部に続いて器内風路の横断面積が急増する噴水室部と、その噴水室部に続いて器内風路の横断面積が急減する絞り部とがその順で空気流れ方向に並ぶ構成にし、The second scrubber has an inlet taper portion in which the cross-sectional area of the internal air passage gradually decreases toward the downstream side of the air flow direction from the inlet opening, and the internal air passage following the inlet taper portion. The fountain chamber part where the cross-sectional area increases rapidly and the throttle part where the cross-sectional area of the internal air passage decreases rapidly following the fountain chamber part are arranged in that order in the air flow direction,
前記洗浄水ノズルは、前記噴水室部のうち空気流れ方向視において前記入口側テーパー部の出口領域から外側に外れた箇所に配置するから、次の作用効果も奏する。Since the washing water nozzle is disposed at a position outside the fountain chamber portion outside the outlet region of the inlet side taper portion as viewed in the air flow direction, the following effects are also achieved.

つまり、この構成では、第2洗浄器の器内風路を高速通過する排出空気に対し上記噴水室部で洗浄水ノズルから洗浄水を噴出させるが、この噴水室部において洗浄水ノズルを空気流れ方向視で入口側テーパー部の出口領域から外側に外れた箇所に配置することにより、通過排出空気に含まれる塗料ミストが洗浄水ノズルに付着することを効果的に回避することができ、これにより、塗料ミスト付着による洗浄水ノズルの目詰まりを防止することができて、第2洗浄器を安定的に洗浄機能させることができる。That is, in this configuration, the wash water is ejected from the wash water nozzle in the fountain chamber portion with respect to the exhaust air that passes through the internal air passage of the second washer at high speed. By arranging it at a location outside the outlet region of the inlet side taper portion as viewed from the direction, it is possible to effectively avoid the paint mist contained in the passing exhaust air from adhering to the washing water nozzle. The clogging of the washing water nozzle due to the paint mist adhesion can be prevented, and the second washing device can be stably washed.

また、入口側テーパー部及び噴水室部の外側でそれら入口側テーパー部と噴水室部との間に形成される凹状空間部を洗浄水ノズルに対するメンテナンススペースとして、洗浄水ノズルに対する第2洗浄器外側からのメンテナンスも容易にすることができる。In addition, a concave space formed between the inlet side tapered portion and the fountain chamber portion outside the inlet side tapered portion and the fountain chamber portion serves as a maintenance space for the cleaning water nozzle, and the outer side of the second cleaning device with respect to the cleaning water nozzle. Maintenance from can also be facilitated.

本発明の第2特徴構成は、第1特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The second feature configuration of the present invention specifies an embodiment suitable for the implementation of the first feature configuration.
前記洗浄水ノズルは、前記第2洗浄器の器内風路を横断する形態の洗浄水膜を噴出洗浄水により形成する構成にしてある点にある。  The cleaning water nozzle is configured such that a cleaning water film in a form crossing the internal air passage of the second cleaning device is formed by jetting cleaning water.

この第2特徴構成によれば、第2洗浄器の器内風路を高速通過する排出空気を上記洗浄水膜に突入させる形態で、その排出空気の全体に対し洗浄水を均一に飛散させることができ、これにより、第2洗浄器における排出空気の洗浄効果(ひいては、第1及び第2洗浄器の全体としての洗浄効果)を一層高めることができる。According to the second characteristic configuration, the cleaning water is uniformly scattered with respect to the entire exhausted air in a form in which the exhausted air passing through the internal air passage of the second cleaning device enters the cleaning water film. As a result, the cleaning effect of the exhaust air in the second cleaning device (and hence the cleaning effect of the first and second cleaning devices as a whole) can be further enhanced.

本発明の第3特徴構成は、第1又は第2特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The third feature configuration of the present invention specifies an embodiment suitable for the implementation of the first or second feature configuration.
前記絞り部において器内風路を形成する開口を前記第2洗浄器の出口開口にしてある点にある。An opening forming an internal air passage in the throttle portion is an outlet opening of the second cleaning device.

この第3特徴構成によれば、絞り部に続いて第2洗浄器における器内風路の横断面積が空気流れ方向の下流側ほど漸次的に増大して出口開口に至るデフューザー部を設けるのに比べ、第2洗浄器の器体長さを短くすることができ、これにより、第1及び第2洗浄器を含む洗浄部を一層コンパクトにして洗浄部の構築を一層容易にすることができる According to the third characteristic configuration, the diffuser portion that gradually increases the cross-sectional area of the internal air passage in the second washer toward the downstream side in the air flow direction and reaches the outlet opening is provided after the throttle portion. In comparison, the body length of the second cleaning device can be shortened, whereby the cleaning unit including the first and second cleaning devices can be made more compact and the cleaning unit can be more easily constructed .

本発明の第4特徴構成は塗装設備に係り、その特徴は、The fourth characteristic configuration of the present invention relates to a painting facility,
塗装室からの排出空気を器内風路に高速化して通過させるとともに、高速化した排出空気に洗浄水を散布して排出空気中の塗料ミストを散布洗浄水により捕捉する塗装排気浄化用の洗浄器として、第1及び第2の洗浄器をその順で空気流れ方向に直列に並べて前記塗装室からの排気風路に装備してある塗装設備であって、Cleaning for paint exhaust purification that allows the exhaust air from the painting chamber to pass through the internal air passage at high speed, and sprays cleaning water on the high-speed exhaust air and captures the paint mist in the exhaust air with the spray cleaning water. As a vessel, the first and second cleaning devices are arranged in series in the air flow direction in that order, and are installed in the exhaust air passage from the coating chamber,
前記第2洗浄器の入口開口を前記第1洗浄器の器壁に対して間隔を開けた状態で対向させ、The inlet opening of the second cleaner is opposed to the wall of the first cleaner with a space therebetween,
複数の前記第2洗浄器を、それらの横向き出口開口を同じ向きに向けた状態で、それら出口開口の向きとは平面視で直交する横方向に並べて排気室の側壁に配設し、A plurality of the second scrubbers are arranged on the side wall of the exhaust chamber side by side in a horizontal direction orthogonal to the direction of the outlet openings in a state in which the lateral outlet openings are oriented in the same direction,
それら複数の第2洗浄器夫々の横向き出口開口から排出空気とともに排出される洗浄水を排出空気から分離する水切り手段を前記排気室において構成するのに、To constitute a draining means in the exhaust chamber for separating the wash water discharged together with the exhaust air from the lateral outlet opening of each of the plurality of second cleaners from the exhaust air.
前記側壁に向って開口する凹状横断面形状で縦姿勢の第1干渉部材を、隣り合う第1干渉部材どうしの間に第1通気路を形成する状態で、複数の前記第2洗浄器の並び方向に並設し、A plurality of the second cleaning devices are arranged in such a state that the first interference member having a concave cross-sectional shape opening toward the side wall and having a vertical posture is formed, and a first air passage is formed between adjacent first interference members. Side by side,
この第1干渉部材の横列に対する空気流れ方向の下流側において、前記第1通気路に向って開口する凹状横断面形状で縦姿勢の第2干渉部材を、隣り合う第2干渉部材どうしの間に第2通気路を形成する状態で、前記第1通気路の夫々に対応させて複数の前記第2洗浄器の並び方向に並設し、On the downstream side in the air flow direction with respect to the row of the first interference members, a second interference member having a concave cross-sectional shape opening toward the first air passage and having a vertical posture is disposed between the adjacent second interference members. In the state of forming the second ventilation path, the plurality of second cleaning devices are arranged in parallel in correspondence with each of the first ventilation path,
この第2干渉部材の横列に対する空気流れ方向の下流側において、前記第2干渉部材に向って開口する凹状横断面形状で縦姿勢の第3干渉部材を、隣り合う第3干渉部材どうしの間に第3通気路を形成する状態で、前記第2干渉部材の夫々に対応させて複数の前記第2洗浄器の並び方向に並設し、On the downstream side in the air flow direction with respect to the row of the second interference members, a third interference member having a concave cross-sectional shape that opens toward the second interference member and having a vertical posture is disposed between adjacent third interference members. In a state of forming the third ventilation path, the plurality of second cleaning devices are arranged in parallel in correspondence with each of the second interference members,
この構成において、前記第2干渉部材の平面視中央部分には、対応する前記第1通気路における平面視中央部分を通過した排出空気を前記第3干渉部材の側へ短絡的に通過させる短絡通気路を形成してある点にある。In this configuration, the short-circuit ventilation that allows the exhaust air that has passed through the center portion in plan view in the corresponding first air passage to be short-circuited to the third interference member side is provided in the center portion in plan view of the second interference member. It is in the point where the road is formed.

つまり、この構成によれば、基本的には第1特徴構成と同様、第2洗浄器の入口開口から上流側に向けて放出される洗浄騒音は、第1洗浄器の器壁(詳しくは、器壁の外面)に衝突することで、減衰するとともに第1洗浄器の出口開口から外れた方向に一次反射し、その後、二次反射や三次反射を経て大きく減衰した洗浄騒音のみが上流側の第1洗浄器をその出口開口から上流側に向けて通過し、この通過過程においてそれら二次反射や三次反射の洗浄騒音が第1洗浄器における散布洗浄水に吸収されて更に減衰する。That is, according to this configuration, basically, as in the first characteristic configuration, the cleaning noise released toward the upstream side from the inlet opening of the second cleaning device is the wall of the first cleaning device (in detail, Only the cleaning noise that has attenuated and primarily reflected in the direction away from the outlet opening of the first cleaning device, and then greatly attenuated through secondary and tertiary reflections, on the upstream side. The first washing device passes through the outlet opening toward the upstream side, and in this passing process, the secondary reflection and tertiary reflection washing noise is absorbed by the spray washing water in the first washing device and further attenuated.

したがって、塗装室は実質的に、第2洗浄器との洗浄機能の分担で洗浄騒音も小さい第1洗浄器の入口開口から放出される洗浄騒音だけが侵入するのに近い状態にすることができ、これにより、従前のこの種の塗装設備に比べ、排出空気に対する全体としての洗浄効果を高く確保しながらないしは更に高めながら、塗装室の騒音値をさらに効果的に低減することができる。Accordingly, the painting chamber can be substantially in a state where only the cleaning noise emitted from the inlet opening of the first cleaning device is small due to the sharing of the cleaning function with the second cleaning device, and the cleaning noise is invaded. As a result, the noise value of the painting chamber can be further effectively reduced while ensuring or further enhancing the overall cleaning effect on the exhausted air as compared with the conventional painting equipment of this type.

そしてまた、第2洗浄器の入口開口を第1洗浄器の器壁に対向させることで、第1及び第2洗浄器を配置する洗浄室もコンパクト化することができて、塗装設備の設置性を高めるとともに設備コストも低減することができる。In addition, the cleaning chamber in which the first and second cleaning devices are arranged can be made compact by making the inlet opening of the second cleaning device face the wall of the first cleaning device, so that the installation property of the painting equipment can be improved. And the equipment cost can be reduced.

さらに、上記第4特徴構成では、Furthermore, in the fourth feature configuration,
複数の前記第2洗浄器を、それらの横向き出口開口を同じ向きに向けた状態で、それら出口開口の向きとは平面視で直交する横方向に並べて排気室の側壁に配設し、A plurality of the second scrubbers are arranged on the side wall of the exhaust chamber side by side in a horizontal direction orthogonal to the direction of the outlet openings in a state in which the lateral outlet openings are oriented in the same direction,
それら複数の第2洗浄器夫々の横向き出口開口から排出空気とともに排出される洗浄水を排出空気から分離する水切り手段を前記排気室において構成するのに、To constitute a draining means in the exhaust chamber for separating the wash water discharged together with the exhaust air from the lateral outlet opening of each of the plurality of second cleaners from the exhaust air.
前記側壁に向って開口する凹状横断面形状で縦姿勢の第1干渉部材を、隣り合う第1干渉部材どうしの間に第1通気路を形成する状態で、複数の前記第2洗浄器の並び方向に並設し、A plurality of the second cleaning devices are arranged in such a state that the first interference member having a concave cross-sectional shape opening toward the side wall and having a vertical posture is formed, and a first air passage is formed between adjacent first interference members. Side by side,
この第1干渉部材の横列に対する空気流れ方向の下流側において、前記第1通気路に向って開口する凹状横断面形状で縦姿勢の第2干渉部材を、隣り合う第2干渉部材どうしの間に第2通気路を形成する状態で、前記第1通気路の夫々に対応させて複数の前記第2洗浄器の並び方向に並設し、On the downstream side in the air flow direction with respect to the row of the first interference members, a second interference member having a concave cross-sectional shape opening toward the first air passage and having a vertical posture is disposed between the adjacent second interference members. In the state of forming the second ventilation path, the plurality of second cleaning devices are arranged in parallel in correspondence with each of the first ventilation path,
この第2干渉部材の横列に対する空気流れ方向の下流側において、前記第2干渉部材に向って開口する凹状横断面形状で縦姿勢の第3干渉部材を、隣り合う第3干渉部材どうしの間に第3通気路を形成する状態で、前記第2干渉部材の夫々に対応させて複数の前記第2洗浄器の並び方向に並設し、On the downstream side in the air flow direction with respect to the row of the second interference members, a third interference member having a concave cross-sectional shape that opens toward the second interference member and having a vertical posture is disposed between adjacent third interference members. In a state of forming the third ventilation path, the plurality of second cleaning devices are arranged in parallel in correspondence with each of the second interference members,
この構成において、前記第2干渉部材の平面視中央部分には、対応する前記第1通気路における平面視中央部分を通過した排出空気を前記第3干渉部材の側へ短絡的に通過させる短絡通気路を形成するから、次の作用効果も奏する。In this configuration, the short-circuit ventilation that allows the exhaust air that has passed through the center portion in plan view in the corresponding first air passage to be short-circuited to the third interference member side is provided in the center portion in plan view of the second interference member. Since the road is formed, the following effects are also achieved.

つまり(図3参照)、複数の第2洗浄器11夫々の横向き出口開口11eから排出空気EAとともに排出される塗料ミスト捕捉後の洗浄水wを、排出空気EAが第1〜第3干渉部材22〜24を迂回して第1〜第3通気路f1〜f3を通過する間に慣性により第1〜第3干渉部材22〜24のいずれかに衝突させて排出空気EAから分離し、これにより排出空気を水切り処理する。In other words (see FIG. 3), the discharged air EA is used as the first to third interference members 22 after the paint mist is captured, which is discharged together with the discharged air EA from the lateral outlet openings 11 e of the plurality of second cleaners 11. While passing through the first to third air passages f1 to f3 by bypassing -24, they collide with any of the first to third interference members 22 to 24 due to inertia and separated from the exhaust air EA, thereby discharging Drain the air.

そして、この水切り処理において、隣り合う第1干渉部材22どうしの間の第1通気路f1を通過する排出空気EAのうち平面視で第1通気路f1の両横部分を通過する排出空気EA′に含まれる洗浄水wは、それら両横部分通過の排出空気流EA′に対向する第2干渉部材23に衝突させることで排出空気EA′から分離する。In this draining process, out of the exhaust air EA passing through the first air passage f1 between the adjacent first interference members 22, the exhaust air EA ′ passing through both lateral portions of the first air passage f1 in plan view. Is separated from the exhaust air EA ′ by colliding with the second interference member 23 facing the exhaust air flow EA ′ passing through both lateral portions.

また、隣り合う第1干渉部材22どうしの間の第1通気路f1を通過する排出空気EAのうち平面視で第1通気路f1の中央部分を通過する排出空気EA″に含まれる洗浄水wは、その中央部分通過の排出空気流EA″を第2干渉部材23の平面視中央部分に形成した短絡通気路fbに短絡的に通過させて、その短絡排出空気流EA″に対向する第3干渉部材24に衝突させることで排出空気EA″から分離する。Further, the washing water w included in the exhaust air EA ″ that passes through the central portion of the first air passage f1 in plan view among the exhaust air EA that passes through the first air passage f1 between the adjacent first interference members 22. Passes through the short air passage fb formed in the central portion of the second interference member 23 in a short-circuited manner, so that the exhaust air flow EA ″ passing through the central portion is short-circuited and is opposed to the short exhaust air flow EA ″. It is separated from the exhaust air EA ″ by colliding with the interference member 24.

即ち、図7に示す如く、平面視中央部分に短絡通気路fbを形成した第2干渉部材23を省略して、第1通気路f1を通過する排出空気EAに含まれる洗浄水wの全てを第3干渉部材24に衝突させて排出空気EAから分離するのでは、同図7に示すように、第1通気路f1を通過する排出空気EAのうち平面視で第1通気路f1の両横部分を通過する排出空気EA′に含まれる洗浄水wの方が、平面視で第1通気路f1の中央部分を通過する排出空気EA″に含まれる洗浄水wに比べ、第3干渉部材24への衝突に至るまでに要する旋回半径方向外側への移動距離r(いわゆる沈降距離)が大きくなる。That is, as shown in FIG. 7, the second interference member 23 having the short-circuit air passage fb formed in the central portion in plan view is omitted, and all the washing water w contained in the exhaust air EA passing through the first air passage f1 is removed. In the case of separating from the exhaust air EA by colliding with the third interference member 24, as shown in FIG. 7, both sides of the first air passage f1 in the plan view of the exhaust air EA passing through the first air passage f1. The third interference member 24 is larger in the cleaning water w contained in the exhaust air EA ′ passing through the portion than in the cleaning water w contained in the exhaust air EA ″ passing through the central portion of the first air passage f1 in plan view. The moving distance r (so-called settling distance) to the outside in the turning radius direction required until reaching the collision becomes larger.

この為、平面視で第1通気路f1の両横部分を通過する排出空気EA′に含まれる洗浄水w(特に小滴で小質量の洗浄水)が第3干渉部材24への衝突に至らないままで排出空気EA′とともに持ち去られてしまい易く、そのことで洗浄水の分離効率が低くなる問題が生じる。また、上記の必要移動距離r(沈降距離)を小さくして洗浄水の分離効率を高く確保するには、第1通気路f1の幅寸法dを小さくしなければならず、その分、通過排出空気EAの圧力損失を小さく止めるのに第1通気路f1の必要高さ(即ち、各干渉部材の必要高さ)が大きくなって装置が大型化する問題が生じる。For this reason, the cleaning water w (especially cleaning water with small droplets and a small mass) contained in the exhaust air EA ′ passing through both lateral portions of the first air passage f1 in plan view leads to a collision with the third interference member 24. It is easy to be carried away with the exhaust air EA ′ without being present, which causes a problem that the separation efficiency of the washing water is lowered. In addition, in order to reduce the necessary moving distance r (sedimentation distance) and to ensure a high separation efficiency of the washing water, the width dimension d of the first air passage f1 must be reduced, and the passage discharge is made correspondingly. In order to keep the pressure loss of the air EA small, the required height of the first air passage f1 (that is, the required height of each interference member) becomes large, resulting in a problem that the apparatus becomes large.

これに対し、上記の如く平面視中央部分に短絡通気路fbを形成した第2干渉部材23を設けることで、平面視で第1通気路f1の両横部分を通過する排出空気EA′及び第1通気路f1の中央部分を通過する排出空気EA″のいずれについても、それら排出空気EA′,EA″に含まれる洗浄水wの必要移動距離r(沈降距離)を小さくすることができ、これにより、第1通気路f1の必要高さを小さくして装置を小型化しながらも洗浄水の分離効率を高く確保することができる。On the other hand, by providing the second interference member 23 in which the short-circuit air passage fb is formed in the central portion in the plan view as described above, the exhaust air EA ′ passing through both lateral portions of the first air passage f1 in the plan view and the first For any of the exhaust air EA ″ passing through the central portion of the one air passage f1, the required moving distance r (sedimentation distance) of the wash water w contained in the exhaust air EA ′, EA ″ can be reduced. Accordingly, it is possible to ensure high separation efficiency of the washing water while reducing the required height of the first air passage f1 and downsizing the apparatus.
なお、第4特徴構成の実施において、第1洗浄器及び第2洗浄器は夫々、洗浄水を自然流下により排出空気に散布する流下形式の洗浄器、あるいは、洗浄水をノズルによる噴出により排出空気に散布するノズル形式の洗浄器のいずれであってもよい。In the implementation of the fourth characteristic configuration, each of the first and second washers is a flow-down type washer that sprays wash water onto the discharged air by natural flow, or exhaust air that is generated by ejecting the wash water from a nozzle. Any type of nozzle-type cleaning device may be used.

本発明の第5特徴構成は、第4特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The fifth feature configuration of the present invention specifies an embodiment suitable for the implementation of the fourth feature configuration.
前記第2洗浄器の横向き出口開口に正対する前記第1干渉部材の凹状横断面形状は、前記第2及び第3干渉部材夫々の凹状横断面形状よりも凹状部の深さが大きい形状にしてある点にある。The concave cross-sectional shape of the first interference member facing the lateral outlet opening of the second cleaning device is a shape in which the depth of the concave portion is larger than the concave cross-sectional shape of each of the second and third interference members. There is a point.

つまり、第2洗浄器の横向き出口開口に正対する第1干渉部材には、第2洗浄器の横向き出口開口から排出される高速排出空気が勢いよく衝突し、この衝突により排出空気中の洗浄水が大きく飛散する。In other words, the high-speed exhaust air discharged from the lateral outlet opening of the second cleaner vigorously collides with the first interference member that faces the lateral outlet opening of the second cleaner, and this collision causes the cleaning water in the discharged air. Is scattered greatly.

これに対し、上記の如く第2洗浄器の横向き出口開口に正対する第1干渉部材の凹状横断面形状を凹状部の深さが大きい形状にすることで、上記衝突の勢いを軽減して洗浄水の飛散を小さくすることができ、これにより、第1干渉部材による洗浄水の分離効率を高めることができて、装置全体としての洗浄水の分離効率を一層高めることができる。On the other hand, as described above, the concave cross-sectional shape of the first interference member directly facing the lateral outlet opening of the second cleaning device is made a shape having a large depth of the concave portion, thereby reducing the momentum of the collision and cleaning. The scattering of water can be reduced, whereby the separation efficiency of the washing water by the first interference member can be increased, and the separation efficiency of the washing water as the entire apparatus can be further enhanced.

本発明の第6特徴構成は、第4又は第5特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The sixth feature configuration of the present invention specifies an embodiment suitable for the implementation of the fourth or fifth feature configuration.
前記第2洗浄器の横向き出口開口に正対する前記第1干渉部材の両横縁部には、平面視で前記第1通気路の側に延び出る延出板部を設けてある点にある。In both lateral edges of the first interference member facing the lateral outlet opening of the second cleaning device, there are provided extension plate portions extending toward the first air passage in a plan view.

この構成によれば、第2洗浄器の横向き出口開口から排出される高速排出空気が上記延出板部を迂回するように大きく旋回しながら第1干渉部材どうし間の第1通気路に侵入する形態にすることができて、この大きな旋回により、排出空気に含まれる洗浄水を一層確実に排出空気から分離することができ、これにより、装置全体としての洗浄水の分離効率を一層高めることができる。According to this configuration, the high-speed exhaust air discharged from the lateral outlet opening of the second cleaner enters the first air passage between the first interference members while swirling so as to bypass the extension plate portion. By this large swirl, the washing water contained in the discharge air can be more reliably separated from the discharge air, thereby further improving the washing water separation efficiency of the entire apparatus. it can.

本発明の第7特徴構成は、第4〜第6特徴構成のいずれかの実施に好適な実施形態を特定するものであり、その特徴は、The seventh feature configuration of the present invention specifies an embodiment suitable for the implementation of any of the fourth to sixth feature configurations.
前記第2洗浄器の横向き出口開口とそれに正対する前記第1干渉部材との間には、前記第2洗浄器の横向き出口開口から排出される高速排出空気を衝突させて前記第1干渉部材の長さ方向に分散させる分散用衝突部材を設けてある点にある。The high-speed exhaust air discharged from the lateral outlet opening of the second cleaning device collides between the lateral outlet opening of the second cleaning device and the first interference member facing the first outlet. This is in that a dispersing collision member for dispersing in the length direction is provided.

この構成によれば、第2洗浄器の横向き出口開口から排出される高速排出空気を上記分散用衝突部材への衝突により第1干渉部材の長さ方向に分散させることで、第1干渉部材への衝突による洗浄水の分離効率を高めることができ、これにより、装置全体としての洗浄水の分離効率を一層高めることができる。According to this configuration, the high-speed exhaust air discharged from the lateral outlet opening of the second cleaning device is dispersed in the length direction of the first interference member by the collision with the dispersion collision member, so that the first interference member is obtained. The separation efficiency of the cleaning water due to the collision of the cleaning water can be increased, and thereby the separation efficiency of the cleaning water as the entire apparatus can be further increased.

本発明の第8特徴構成は、第1〜第7特徴構成のいずれかの実施に好適な実施形態を特定するものであり、その特徴は、The eighth feature configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to seventh feature configurations,
前記第1洗浄器を通過した排出空気から分離した洗浄水、及び、前記第2洗浄器を通過した排出空気から分離した洗浄水を回収して、それら回収洗浄水から塗料分を分離除去する共通分離槽を設け、Commonly used to collect the wash water separated from the exhaust air that has passed through the first washer and the wash water separated from the exhaust air that has passed through the second washer, and to separate and remove the paint component from the recovered wash water Provided a separation tank,
この共通分離槽で塗料分を分離した洗浄水を前記第1及び第2洗浄器の夫々において通過排出空気に散布する構成にするとともに、In this common separation tank, the washing water separated from the paint is sprayed on the passing exhaust air in each of the first and second washing devices, and
この共通分離槽から前記第2洗浄器に供給する洗浄水における残留塗料分をその供給洗浄水から分離除去するフィルタを設けてある点にある。A filter for separating and removing the residual paint in the cleaning water supplied from the common separation tank to the second cleaning device from the supplied cleaning water is provided.

この構成によれば、各洗浄器において使用した洗浄水を分離槽に回収して塗料分を除去した上で再使用するのに、第1洗浄器に対する分離槽と第2洗浄器に対する分離槽とを共通化するから、設備構成を簡素化することができて設備コストを安価にすることができる。According to this configuration, the separation tank for the first washing device and the separation tank for the second washing device can be reused after collecting the washing water used in each washing device in the separation tank and removing the paint. Therefore, the equipment configuration can be simplified and the equipment cost can be reduced.

また、このように設備構成の簡素化を図りながらも、第1洗浄器で洗浄した排出空気に残る残留塗料ミストを排出空気からさらに分離する高精度の洗浄機能が要求される第2洗浄器には、共通分離槽での塗料分の分離に加えて上記フィルタでも残留塗料分を分離除去した洗浄水を供給するから、共通分離槽で塗料分を分離しただけの洗浄水を第1及び第2洗浄器に供給するのに比べ、第2洗浄器の高精度洗浄機能も十分に確保することができる。Further, while simplifying the equipment configuration as described above, the second washer is required to have a highly accurate washing function for further separating the residual paint mist remaining in the discharged air washed by the first washer from the discharged air. Supplies the washing water from which the remaining paint is separated and removed by the filter in addition to the separation of the paint in the common separation tank. Compared to supplying to the cleaning device, the high-precision cleaning function of the second cleaning device can be sufficiently secured.

本発明の第9特徴構成は、第1〜第7特徴構成のいずれかの実施に好適な実施形態を特定するものであり、その特徴は、The ninth feature configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to seventh feature configurations,
前記第1洗浄器を通過した排出空気から分離した洗浄水を回収して、その回収洗浄水から塗料分を分離除去する第1分離槽、及び、前記第2洗浄器を通過した排出空気から分離した洗浄水を回収して、その回収洗浄水から塗料分を分離除去する第2分離槽を各別に設け、A first separation tank that collects the washing water separated from the exhausted air that has passed through the first cleaning device, and separates and removes the paint component from the recovered cleaning water, and is separated from the exhausted air that has passed through the second cleaning device. A separate second separation tank is provided for collecting the washed water and separating and removing the paint from the collected washed water.
前記第1分離槽で塗料分を分離した洗浄水を前記第1洗浄器において通過排出空気に散布するとともに、前記第2分離槽で塗料分を分離した洗浄水を前記第2洗浄器において通過排出空気に散布する構成にしてある点にある。The cleaning water separated from the paint in the first separation tank is sprayed on the passing exhaust air in the first cleaning device, and the cleaning water separated from the paint in the second separation tank is passed through and discharged in the second cleaning device. It is in the point that it is configured to be dispersed in the air.

この構成によれば、第1洗浄器との間で洗浄水を循環させる第1分離槽と、第2洗浄器との間で洗浄水を循環させる第2分離槽とを各別に設けるから、第1分離槽に回収される第1洗浄器からの排出洗浄水の影響で第2洗浄器の洗浄機能が低下することを確実に回避することができ、これにより、第1洗浄器で洗浄した排出空気に残る残留塗料ミストを排出空気からさらに分離する第2洗浄器に要求される高精度の洗浄機能を確保することができる。According to this configuration, the first separation tank for circulating the cleaning water between the first cleaning device and the second separation tank for circulating the cleaning water between the second cleaning device are provided separately. It is possible to reliably avoid the deterioration of the cleaning function of the second cleaning device due to the influence of the discharged cleaning water from the first cleaning device collected in one separation tank, and thereby the discharge cleaned by the first cleaning device. A highly accurate cleaning function required for the second cleaning device that further separates the residual paint mist remaining in the air from the discharged air can be ensured.

本発明の第10特徴構成は、第9特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The tenth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of the ninth characteristic configuration.
前記第2分離槽から前記第2洗浄器に供給する洗浄水における残留塗料分をその供給洗浄水から分離除去するフィルタを設けてある点にある。A filter for separating and removing the residual paint in the cleaning water supplied from the second separation tank to the second cleaning device from the supplied cleaning water is provided.

この構成によれば、第1分離槽とは独立した第2分離槽での塗料分の分離に加えて上記フィルタでも残留塗料分を分離除去した洗浄水を第2洗浄器に供給するから、第1洗浄器で洗浄した排出空気に残る残留塗料ミストを排出空気からさらに分離する第2洗浄器に要求される高精度の洗浄機能を一層高く確保することができる。According to this configuration, in addition to the separation of the paint in the second separation tank independent of the first separation tank, the cleaning water from which the residual paint is separated and removed also by the filter is supplied to the second cleaning device. The highly accurate cleaning function required for the second cleaning device that further separates the residual paint mist remaining in the exhausted air cleaned by the first cleaning device from the exhausted air can be ensured.

本発明の第11特徴構成は、第1〜第10特徴構成のいずれかの実施に好適な実施形態を特定するものであり、その特徴は、The eleventh characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to tenth characteristic configurations.
前記第2洗浄器での通過排出空気の圧力損失が前記第1洗浄器での通過排出空気の圧力損失より大きくなる状態に、それら第1及び第2洗浄器を構成してある点にある。The first and second cleaners are configured such that the pressure loss of the passing exhaust air in the second cleaner is larger than the pressure loss of the passing exhaust air in the first cleaner.

この種の洗浄器では一般に、洗浄器での通過排出空気の圧力損失が高くなるほど洗浄効果は高くなるものの洗浄騒音が大きくなるが、前述の如く、下流側の第2洗浄器の入口開口から放出される洗浄騒音やその一次反射音が上流側の第1洗浄器の出口開口に直達するのを防止できることから、第1洗浄器での通過排出空気の圧力損失を小さくして、その分、第2洗浄器での通過排出空気の圧力損失を大きくする形態で、上記の如く第2洗浄器での通過排出空気の圧力損失を第1洗浄器での通過排出空気の圧力損失より大きくすれば、排出空気に対する洗浄効果は高く保ちながら、塗装室の騒音値を一層効果的に低減することができる。In general, in this type of washer, the higher the pressure loss of the passing exhaust air in the washer, the higher the washing effect, but the greater the washing noise. However, as described above, the discharge from the inlet opening of the downstream second washer is released. Can be prevented from directly reaching the outlet opening of the upstream first cleaning device, the pressure loss of the passing exhaust air in the first cleaning device can be reduced, and If the pressure loss of the passing exhaust air in the second cleaning device is made larger than the pressure loss of the passing exhaust air in the first cleaning device as described above in the form of increasing the pressure loss of the passing exhaust air in the two cleaning devices, While maintaining a high cleaning effect on the exhaust air, the noise value in the painting chamber can be reduced more effectively.

本発明の第12特徴構成は、第1〜第11特徴構成のいずれかの実施に好適な実施形態を特定するものであり、その特徴は、The twelfth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to eleventh characteristic configurations.
前記塗装室とその下方の洗浄室とを仕切る散水板を設け、A watering plate is provided to partition the coating chamber and the cleaning chamber below it,
前記第1洗浄器は、前記塗装室に対して開口する上向きの入口開口と前記洗浄室に対して開口する下向きの出口開口とを備える縦筒構造にして、前記塗装室からの排出空気と前記散水板からの溢出洗浄水とを合流状態で器内風路に高速通過させる構成にしてある点にある。The first cleaning device has a vertical cylindrical structure having an upward inlet opening that opens to the coating chamber and a downward outlet opening that opens to the cleaning chamber, and the exhaust air from the coating chamber and the The overflow wash water from the water spray plate is configured to pass through the internal air passage at high speed in a merged state.

この構成では、第1洗浄器の器内風路において散水板からの溢出洗浄水を高速の排出空気により細分化して飛散させ、この溢出洗浄水の飛散水滴により排出空気中の塗料ミストを捕捉して排出空気を洗浄する。In this configuration, the overflow wash water from the water spray plate is divided and scattered by the high-speed exhaust air in the internal air passage of the first washer, and the paint mist in the exhaust air is captured by the splash water droplets of this overflow wash water. Wash the exhaust air.

そして、この構成によれば、第1洗浄器を単純な縦筒構造にすることで、第1洗浄器の製作コストを安価にして全体としての設備コストをさらに安価にすることができ、また、塗料ミスト付着などに対する第1洗浄器のメンテナンスも容易にすることができる。And according to this structure, by making the 1st washer simple vertical cylinder structure, the manufacturing cost of the 1st washer can be made cheap and the equipment cost as a whole can be made further cheaper, Maintenance of the 1st washing machine to paint mist adhesion etc. can also be made easy.

本発明の第13特徴構成は、第12特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The thirteenth feature configuration of the present invention specifies an embodiment suitable for the implementation of the twelfth feature configuration.
前記第1洗浄器の上部には、前記散水板における洗浄水を前記第1洗浄器の上向き入口開口に溢出させる溢水堰を形成し、On the upper part of the first cleaning device, an overflow weir is formed to overflow the cleaning water in the water spray plate into the upward inlet opening of the first cleaning device,
前記第1洗浄器の下部には、前記第1洗浄器の下向き出口開口の側ほど器内風路の横断面積が漸次的に小さくなる出口側テーパー部を形成してある点にある。In the lower part of the first cleaning device, an outlet side taper portion is formed in which the cross-sectional area of the internal air passage gradually decreases toward the downward outlet opening of the first cleaning device.

この構成によれば、第1洗浄器の上部における溢水堰から溢出させた洗浄水を高速の排出空気により細分化して排出空気中に飛散させるとともに、第1洗浄器における器内風路の風路壁内面(換言すれば、第1洗浄器の器壁内面)を伝って流下する溢出洗浄水を第1洗浄器の下部における出口側テーパー部の下端縁で再び排出空気により細分化して排出空気中に飛散させることができる。According to this configuration, the wash water overflowing from the overflow weir at the top of the first washer is subdivided by the high-speed exhaust air and scattered in the exhaust air, and the air passage of the internal air passage in the first washer The overflow washing water flowing down along the inner wall surface (in other words, the inner wall surface of the first washer) is subdivided again by the discharged air at the lower end edge of the outlet side taper at the lower part of the first washer. Can be scattered.

即ち、排出空気に対し洗浄水を第1洗浄器で2段階にわたって飛散させることができ、これにより、縦筒構造という簡素な構成を採りながらも、第1洗浄器における排出空気の洗浄効果(ひいては、第1及び第2洗浄器の全体としての洗浄効果)を高く確保することができる。That is, the cleaning water can be scattered with respect to the exhaust air in two stages by the first cleaning device, and thereby, the cleaning effect of the exhaust air in the first cleaning device (and hence the simple structure of the vertical cylinder structure) The cleaning effect of the first and second cleaners as a whole can be ensured.

本発明の第14特徴構成は、第1〜第13特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、The fourteenth feature configuration of the present invention specifies an embodiment suitable for the implementation of the first to thirteenth feature configurations.
複数の前記塗装室を備え、これら複数の塗装室のうち散布洗浄水による塗料ミスト捕捉の捕捉効率が低い空気が排出される高負荷塗装室については、その高負荷塗装室からの排気風路に前記第1及び第2洗浄器を装備し、For a high-load painting chamber that has a plurality of the above-mentioned coating chambers and discharges air with a low trapping efficiency for capturing paint mist with spray washing water, the exhaust air passage from the high-load coating chamber Equipped with the first and second washer;
複数の前記塗装室のうち散布洗浄水による塗料ミスト捕捉の捕捉効率が高い空気が排出される低負荷塗装室については、前記第2洗浄器を省略して、その低負荷塗装室からの排気風路に前記第1洗浄器のみを装備してある点にある。Of the plurality of coating chambers, the second cleaning device is omitted for the low-load coating chamber in which air with a high capture efficiency of capturing the paint mist by the spray cleaning water is discharged, and the exhaust air from the low-load coating chamber is omitted. The road is equipped with only the first washer.

排出空気中の塗料ミストを散布洗浄水により捕捉する塗料ミスト捕捉の捕捉効率(換言すれば、排出空気洗浄の洗浄効率)は、塗装室で使用する塗料の種類や塗装室での塗装作業形態など種々の条件によって異なる。
したがって、散布洗浄水による塗料ミスト捕捉の捕捉効率が互いに異なる空気が排出される複数の塗装室からの排気風路の夫々に対し一律に第1及び第2洗浄器を装備した場合、排出空気の洗浄機能は設備全体として十分なものが得られるが、塗料ミスト捕捉効率が高い空気が排出される低負荷塗装室に対する過剰設備となり、その分、設備コストや運転コストの無駄を招く。
また一方、それら複数の塗装室からの排気風路の夫々に対し一律に第1洗浄器のみを装備するのでは、上記の如き設備コストや運転コストの無駄を回避し得るものの、塗料ミスト捕捉効率が低い空気が排出される高負荷塗装室に対する過小設備となって、それを補うための別途フィルタ手段が必要になり、それらフィルタ手段に対する頻繁な更新処理が必要になる。
これに対し、高負荷塗装室については、その高負荷塗装室からの排気風路に第1及び第2洗浄器を装備し、一方、低負荷塗装室については、第2洗浄器を省略して、その低負荷塗装室からの排気風路に第1洗浄器のみを装備する上記構成によれば、低負荷塗装室に対する過剰設備を回避して設備コストや運転コストの無駄を回避しながら、高負荷塗装室に対する別途フィルタ手段の装備を不要にして、それらフィルタ手段に対する頻繁な更新処理を不要にすることができる。
The capture efficiency of the paint mist capture that captures the paint mist in the exhaust air with spray washing water (in other words, the cleaning efficiency of the exhaust air cleaning) is the type of paint used in the painting room, the form of painting work in the painting room, etc. It depends on various conditions.
Therefore, when the first and second cleaners are uniformly provided for each of the exhaust air passages from the plurality of coating chambers from which the air having different trapping efficiencies in capturing the paint mist by the spray cleaning water is discharged, Although a sufficient cleaning function can be obtained for the entire facility, it becomes an excessive facility for a low-load painting chamber where air with high paint mist capturing efficiency is discharged, which incurs waste of facility cost and operation cost.
On the other hand, if only the first cleaning device is uniformly provided for each of the exhaust air passages from the plurality of coating chambers, the waste of the equipment cost and the operation cost as described above can be avoided, but the paint mist capturing efficiency can be avoided. However, it becomes an under-equipment for a high-load painting chamber in which low air is discharged, and additional filter means are required to make up for it, and frequent update processing for these filter means is required.
On the other hand, for the high load painting chamber, the first and second cleaners are provided in the exhaust air passage from the high load coating chamber, while the second cleaner is omitted for the low load coating chamber. According to the above configuration in which only the first cleaning device is provided in the exhaust air passage from the low-load painting chamber, it is possible to avoid excessive facilities for the low-load painting chamber and avoid waste of equipment costs and operation costs. It is possible to eliminate the need for separate filter means for the load painting chamber and to eliminate frequent update processing for the filter means.

塗装ブースの概略図及び横断面図Schematic and cross-sectional view of painting booth 塗装ブース下部の正面視断面図Front sectional view of the bottom of the painting booth 塗装ブース下部の平面視断面図Plan sectional view of the bottom of the painting booth 第1洗浄器の正面視断面図Front sectional view of the first cleaning device 第2洗浄器の斜視図Perspective view of second washer 第2洗浄器の平面視断面図Plan view sectional view of the second cleaning device 従来のエリミネータを示す平面図Plan view showing a conventional eliminator 洗浄水循環方式の説明図Illustration of wash water circulation system 他の洗浄水循環方式の説明図Illustration of other wash water circulation system 低負荷塗装室における塗装ブース下部の正面視断面図Front sectional view of the lower part of the painting booth in the low-load painting room 低負荷塗装室における塗装ブース下部の平面視断面図Plan view sectional view of the lower part of the painting booth in the low-load painting room 第1洗浄器の別実施形態を示す正面視断面図Front view sectional drawing which shows another embodiment of a 1st washing device 第1洗浄器の別実施形態を示す正面視断面図Front view sectional drawing which shows another embodiment of a 1st washing device 第2洗浄器の別実施形態を示す塗装ブース下部の平面視断面図Plan view sectional drawing of the lower part of the painting booth which shows another embodiment of the 2nd washing machine 第2洗浄器の別実施形態を示す一部切り欠き斜視図Partially cutaway perspective view showing another embodiment of the second cleaning device 第2洗浄器の別実施形態を示す塗装ブース下部の平面視断面図Plan view sectional drawing of the lower part of the painting booth which shows another embodiment of the 2nd washing machine 第2洗浄器の別実施形態を示す塗装ブース下部の平面視断面図Plan view sectional drawing of the lower part of the painting booth which shows another embodiment of the 2nd washing machine

図1の上部は塗装ブースの概略構成を示し、被塗物A(本例では自動車ボディ)の搬送経路に沿ってトンネル状に延びる塗装ブース1は、ブース長さ方向(図1上部における左右方向)において、水性プライマ塗装工程部2と水性ベース塗装工程部3と溶剤性クリア塗装工程部4との3部に区分してある。   The upper part of FIG. 1 shows a schematic configuration of the painting booth, and the painting booth 1 extending in a tunnel shape along the conveying path of the article A (automobile body in this example) is in the booth length direction (the left-right direction in the upper part of FIG. 1). ), The water-based primer coating process section 2, the water-based base coating process section 3, and the solvent-based clear coating process section 4 are divided into three parts.

最初の水性プライマ塗装工程部2では、前処理された被塗物Aを水性プライマ塗料によりプライマ塗装し、次の水性ベース塗装工程部3では、プライマ塗装された被塗物Aを水性ベース塗料によりベース塗装し、そして、溶剤性クリア塗装工程部4では、ベース塗装された被塗物Aを溶剤性クリア塗料によりクリア塗装する。   In the first water-based primer coating process section 2, the pre-treated object A is primer-coated with a water-based primer paint, and in the next water-based base coating process section 3, the primer-coated object A is coated with a water-based base paint. The base coating is performed, and the solvent-based clear coating process section 4 clear-coats the base-coated object A with the solvent-based clear paint.

これら3つの塗装工程部2,3,4は夫々、ブース長さ方向において、被塗物Aの内側を塗装ロボットにより塗装する内板塗装ゾーン2a,3a,4aと、内板塗装された被塗物Aの外側を塗装ロボットにより塗装する外板塗装ゾーン2b,3b,4bと、外板塗装された被塗物Aを作業者が手直し塗装する手直し塗装ゾーン2c,3c,4cとに区分してある。   These three coating process parts 2, 3 and 4 respectively have inner plate coating zones 2a, 3a and 4a in which the inner side of the object to be coated A is coated by a coating robot in the booth length direction, and the inner plate coated object to be coated. The outer plate coating zones 2b, 3b, and 4b in which the outer side of the object A is painted by a painting robot and the rework coating zones 2c, 3c, and 4c in which the worker repaints the coated object A that has been coated on the outer plate are divided. is there.

図1の下部並びに図2,図3は溶剤性クリア塗装工程部4における内板塗装ゾーン4a及び外板塗装ゾーン4b夫々の正面視断面及び平面視断面を示し、これら塗装ゾーン4a,4bでは、コンベア5により搬送される被塗物Aを塗装する塗装室6の下方に洗浄室7を形成し、塗装室6の下方でブース幅方向(図1下部,図2,図3における左右方向)における洗浄室7の隣りには排気室8を形成してある。   The lower part of FIG. 1 and FIGS. 2 and 3 show a front sectional view and a planar sectional view of the inner plate coating zone 4a and the outer plate coating zone 4b in the solvent-based clear coating process section 4, respectively. In these coating zones 4a and 4b, A cleaning chamber 7 is formed below the coating chamber 6 for coating the article A to be transported by the conveyor 5, and in the booth width direction (lower part of FIG. 1, left and right direction in FIGS. 2 and 3) below the coating chamber 6. An exhaust chamber 8 is formed next to the cleaning chamber 7.

塗装室6の天井には、そのほぼ全面にわたって天井フィルタ6aを張設してあり、温湿度調整した換気用空気SAを天井裏部の給気チャンバ6bに供給することで、その換気用空気SAを天井フィルタ6aを通じて塗装室6に下向き層流状に吹き出し供給する。   A ceiling filter 6a is stretched over almost the entire ceiling of the painting chamber 6, and the ventilation air SA adjusted in temperature and humidity is supplied to the supply chamber 6b at the back of the ceiling, whereby the ventilation air SA. Is blown out and supplied into the painting chamber 6 through the ceiling filter 6a.

塗装室6の底壁は洗浄水wをブース幅方向の両端縁部から中央部に向けて流下させる散水板6cにしてあり、この散水板6cにおけるブース幅方向の中央部には、天井部からの換気用空気SAの供給に伴い塗装室6から洗浄室7に排出する空気EAを洗浄水wにより洗浄する複数の第1洗浄器9を所定間隔でブース長さ方向に一列に並べて装備してある。   The bottom wall of the coating chamber 6 is a water spray plate 6c that allows the cleaning water w to flow down from both edge portions in the booth width direction toward the center portion. The center portion of the water spray plate 6c in the booth width direction is from the ceiling portion. A plurality of first cleaners 9 for cleaning the air EA discharged from the coating chamber 6 to the cleaning chamber 7 with the cleaning water w along with the supply of the ventilation air SA are arranged in a row in the booth length direction at predetermined intervals. is there.

また、洗浄室7と排気室8とを仕切る側壁10には、複数の第1洗浄器9を通じて洗浄室7に排出された塗装室6からの排出空気EAを洗浄室7から排気室8に導入する過程でさらに洗浄水wにより洗浄する複数の第2洗浄器11を、ブース長さ方向において第1洗浄器9に対応させた配置でブース長さ方向に一列に並べて装備してある。   In addition, on the side wall 10 that partitions the cleaning chamber 7 and the exhaust chamber 8, the exhaust air EA from the coating chamber 6 discharged to the cleaning chamber 7 through the plurality of first cleaners 9 is introduced from the cleaning chamber 7 to the exhaust chamber 8. In the process, a plurality of second washers 11 to be washed with the wash water w are arranged in a line in the booth length direction in an arrangement corresponding to the first washers 9 in the booth length direction.

そして、排気室8には、複数の第2洗浄器11を通じて排気室8に導入された排出空気EAを水切り処理するエリミネータ12を配備してあり、このエリミネータ12により水切り処理した洗浄後の排出空気EAは、排気ファン13により排気ダクト14を通じて外部に排出する(又は、その排出空気EAの一部ないし全部を再度温湿度調整した上で換気用空気SAとして給気チャンバ6bに供給する)。   The exhaust chamber 8 is provided with an eliminator 12 for draining the exhaust air EA introduced into the exhaust chamber 8 through the plurality of second washers 11, and the exhaust air after cleaning that has been drained by the eliminator 12. The EA is exhausted to the outside through the exhaust duct 14 by the exhaust fan 13 (or a part or all of the exhaust air EA is adjusted to the temperature and humidity again and supplied to the supply chamber 6b as the ventilation air SA).

なお、排気ファン13は、それぞれが大きな通気抵抗となる第1洗浄器9、第2洗浄器11、エリミネータ12を通じて塗装室6から所定風量の室内空気EAを排出するのに要する吸引能力を備えている。   The exhaust fan 13 has a suction capability required to discharge a predetermined amount of room air EA from the coating chamber 6 through the first cleaner 9, the second cleaner 11, and the eliminator 12, each having a large ventilation resistance. Yes.

図3及び図4に示すように、第1洗浄器9は、内部を器内風路9fとする横断面形状が長方形状の縦筒構造にしてあり、この第1洗浄器9は、散水板6cに対して貫通状態に配設することで、その上向き入口開口9aが散水板6cの近傍で塗装室6に開口し、その下向き出口開口9bが散水板6cの下方で洗浄室7に対して開口する状態にしてある。   As shown in FIGS. 3 and 4, the first cleaning device 9 has a vertical cylindrical structure with a rectangular cross section having an internal air passage 9 f inside, and the first cleaning device 9 includes a water spray plate. By arranging in a penetrating manner with respect to 6c, its upward inlet opening 9a opens into the coating chamber 6 in the vicinity of the water spray plate 6c, and its downward outlet opening 9b with respect to the cleaning chamber 7 below the water spray plate 6c. It is in an open state.

第1洗浄器9の上端部には、散水板6cにおける洗浄水wを上向き入口開口9aに溢出させる溢水堰9cを形成してあり、第1洗浄器9では、高速化した状態で上向き入口開口9aに流入する塗装室6からの排出空気EAと溢水堰9cからの溢出洗浄水wとを合流状態で器内風路9fに高速通過させることで、塗装室6からの排出空気EAに含まれるオーバースプレー塗料の塗料ミストを洗浄水wにより捕捉し、これにより、塗装室6からの排出空気EAを洗浄する。   An overflow weir 9c is formed at the upper end of the first cleaning device 9 to allow the cleaning water w in the water spray plate 6c to overflow into the upward inlet opening 9a. In the first cleaning device 9, the upward inlet opening is increased in a speed-up state. The exhaust air EA flowing from the painting chamber 6 flowing into 9a and the overflow washing water w from the overflow weir 9c are passed through the internal air passage 9f at a high speed in a merged state, thereby being included in the exhaust air EA from the coating chamber 6. The paint mist of the overspray paint is captured by the washing water w, thereby washing the exhaust air EA from the painting chamber 6.

更に具体的に言えば、第1洗浄器9では、溢水堰9cから上向き入口開口9aに溢出する洗浄水wを、高速化した状態で上向き入口開口9aに流入する排出空気EAにより飛沫化して排出空気EAに飛散させることで、排出空気EAに含まれる塗料ミストを洗浄水wの飛散水滴により捕捉する。   More specifically, in the first washer 9, the wash water w overflowing from the overflow weir 9c to the upward inlet opening 9a is spattered and discharged by the exhaust air EA flowing into the upward inlet opening 9a at a high speed. The paint mist contained in the discharge air EA is captured by the scattered water droplets of the washing water w by being scattered in the air EA.

第1洗浄器9の下部には、下端の出口開口9bの側ほど器内風路9fの横断面積が漸次的に縮小する出口側テーパー部9dを形成してあり、この第1洗浄器9では、上記した溢水堰9cからの溢出洗浄水wによる塗料ミスト捕捉に続き、出口側テーパー部9dの内面を伝って流下する溢出洗浄水wを、器内風路9fを高速通過する排出空気EAにより出口側テーパー部9dの下端縁で飛沫化して排出空気EAに飛散させ、この出口開口9b近傍での洗浄水飛散によっても排出空気EA中の塗料ミストを洗浄水wの飛散水滴により捕捉する。   In the lower part of the first cleaning device 9, an outlet side taper portion 9d is formed in which the cross-sectional area of the internal air passage 9f gradually decreases toward the lower end outlet opening 9b. Following the above-described capture of the paint mist by the overflow washing water w from the overflow weir 9c, the overflow washing water w flowing down along the inner surface of the outlet side tapered portion 9d is discharged by the exhaust air EA passing through the internal air passage 9f at high speed. Splashes are formed at the lower end edge of the outlet-side tapered portion 9d and scattered into the discharge air EA, and the paint mist in the discharge air EA is also captured by the scattered water droplets of the cleaning water w by the scattering of the cleaning water in the vicinity of the outlet opening 9b.

即ち、この第1洗浄器9では、上部と下部との2段階にわたって洗浄水wを排出空気EAに飛散させることで、塗装室6からの排出空気EAに含まれる塗料ミストに対する捕捉効率(換言すれば、排出空気EAに対する洗浄効率)を高めるようにしてある。   That is, in the first cleaning device 9, the cleaning water w is scattered in the exhaust air EA in two stages of the upper part and the lower part, thereby capturing the paint mist contained in the exhaust air EA from the coating chamber 6 (in other words, In this case, the cleaning efficiency with respect to the exhaust air EA is increased.

第1洗浄器9の上部に設けた溢水堰9cは、溢水堰9の上縁を形成する堰調整板15aの固定位置を上下方向に調整することで溢水堰9cの堰高さ(即ち、散水板6cにおける洗浄水wの水位)を自在に調整できる構造にしてあり、また、第1洗浄器9における下向き出口開口9bは、出口側テーパー部9dを形成する一対の開口調整板15bの固定位置を出口側テーパー部15bの傾斜方向に調整することで下向き出口開口9bの開口幅を自在に調整できる構造にしてあり、これら堰高さの調整や開口幅の調整は、塗装室6から排出される排出空気EAの風量、排出空気EAにおける塗料ミスト濃度、塗装室6で使用する塗料の種類などに応じて適宜調整する。   The overflow weir 9c provided in the upper part of the 1st washing device 9 adjusts the fixing position of the weir adjustment board 15a which forms the upper edge of the overflow weir 9 to an up-down direction, and the weir height (namely, watering) of the overflow weir 9c The water level of the cleaning water w in the plate 6c can be adjusted freely, and the downward outlet opening 9b in the first cleaning device 9 is a fixed position of the pair of opening adjusting plates 15b forming the outlet side tapered portion 9d. Is adjusted in the inclination direction of the outlet side taper portion 15b so that the opening width of the downward outlet opening 9b can be freely adjusted. The adjustment of the height of the weir and the adjustment of the opening width are discharged from the coating chamber 6. The air volume of the exhaust air EA to be adjusted, the paint mist concentration in the exhaust air EA, the type of paint used in the coating chamber 6 and the like are appropriately adjusted.

なお、第1洗浄器9の下向き出口開口9bから排出空気EAとともに洗浄室7に吐出する洗浄水w(即ち、塗料ミストを捕捉した洗浄水wの水滴)は、排出空気EAが後段の第2洗浄器11に向けて急激に向き変化するのに伴い慣性により排出空気EAから分離して落下することで、洗浄室7の底部に設けられた集水槽16に回収される。   The cleaning water w discharged into the cleaning chamber 7 together with the exhaust air EA from the downward outlet opening 9b of the first cleaning device 9 (that is, the water droplets of the cleaning water w that has captured the paint mist) is the exhaust air EA in the second stage. As it is suddenly turned toward the cleaning device 11, it is separated from the exhausted air EA due to inertia and dropped, so that it is recovered in the water collecting tank 16 provided at the bottom of the cleaning chamber 7.

図5及び図6に示すように、第2洗浄器11は、内部を器内風路11fとする横断面形状が四角形状の横向き筒構造にしてあり、この第2洗浄器11は、横向き入口開口11aを対応する第1洗浄器9の器壁(即ち、第1洗浄器9の縦筒構造における筒壁)に対して間隔を開けた状態で対向させる状態で洗浄室7に配置して洗浄室7と排気室8との間の側壁10に取り付けてある。   As shown in FIGS. 5 and 6, the second cleaning device 11 has a laterally cylindrical structure with a rectangular cross section with the interior air passage 11f inside, and the second cleaning device 11 has a lateral entrance. The opening 11a is disposed in the cleaning chamber 7 in a state of being opposed to the corresponding wall of the first cleaning device 9 (that is, the cylindrical wall in the vertical cylindrical structure of the first cleaning device 9) and cleaned. It is attached to the side wall 10 between the chamber 7 and the exhaust chamber 8.

また、この第2洗浄器11は、その横向き入口開口11aから空気流れ方向の下流側ほど器内風路11fの横断面積が漸次的に小さくなる入口側テーパー部11bと、その入口側テーパー部11bに続いて器内風路11fの横断面積が急増する噴水室部11cと、その噴水室部11cに続いて器内風路11fの横断面積が急減する絞り部11dとがその順で空気流れ方向に並ぶ構造し、そして、この絞り部11dにおいて器内風路11fを形成する開口を排気室8に対して開口させる第2洗浄器11の横向き出口開口11eにしてある。   In addition, the second cleaning device 11 includes an inlet-side tapered portion 11b, and an inlet-side tapered portion 11b, in which the cross-sectional area of the internal air passage 11f gradually decreases from the lateral inlet opening 11a toward the downstream side in the air flow direction. Subsequently, the fountain chamber portion 11c in which the cross-sectional area of the internal air passage 11f increases rapidly, and the throttle portion 11d in which the cross-sectional area of the internal air passage 11f decreases rapidly following the fountain chamber portion 11c in that order. The opening forming the internal air passage 11f in the throttle portion 11d is a lateral outlet opening 11e of the second cleaning device 11 that opens to the exhaust chamber 8.

第2洗浄器11における噴水室部11cには、絞り部11dの横向き出口開口11eに向けて洗浄水wを噴出する複数の洗浄水ノズル17を配設してあり、これら洗浄水ノズル17は夫々、噴出洗浄水wにより水膜wsを形成する形式のものにして、それら洗浄水ノズル17により形成する水膜wsが連続することで、第2洗浄器11における器内風路11fを噴水室部11cにおいてほぼ完全に横断する形態の連続水膜wsが形成されるように、それら複数の洗浄水ノズル17を配置してある。   The fountain chamber 11c of the second washer 11 is provided with a plurality of wash water nozzles 17 for ejecting wash water w toward the lateral outlet opening 11e of the throttle portion 11d. The water film ws formed by the washing water nozzle 17 is formed in a form in which the water film ws is formed by the jetted washing water w, and the internal air passage 11f in the second washing device 11 is formed in the fountain chamber portion. The plurality of washing water nozzles 17 are arranged so that a continuous water film ws that is substantially completely traversed in 11c is formed.

つまり、この第2洗浄器11では、第1洗浄器9の下向き出口開口9bから吐出された後、第2洗浄器11の横向き入口開口11aに流入して入口側テーパー部11bを通過する過程でさらに高速化する排出空気EAを上記連続水膜wsに突入させる形態で噴水室部11cから絞り部11dに通過させることで、水膜wsを形成する噴出洗浄水wを排出空気EAにより効率良く飛沫化して通過排出空気EAに対し均一に飛散させ、この飛散水滴により排出空気EA中に残るオーバースプレー塗料の微小残留塗料ミストを捕捉することで、第1洗浄器9で洗浄した後の排出空気EAをさらに二次洗浄する。   That is, in the second cleaning device 11, after being discharged from the downward outlet opening 9b of the first cleaning device 9, it flows into the lateral inlet opening 11a of the second cleaning device 11 and passes through the inlet side tapered portion 11b. Further, by allowing the exhaust air EA to be further accelerated to pass through the continuous water film ws from the fountain chamber portion 11c to the constriction portion 11d, the jet wash water w forming the water film ws is efficiently splashed by the exhaust air EA. The exhaust air EA after being washed by the first washer 9 is obtained by uniformly scattering the passing exhaust air EA and capturing the minute residual paint mist of the overspray paint remaining in the exhaust air EA by the scattered water droplets. Further washing is performed.

複数の洗浄水ノズル17は夫々、噴水室部11cのうち空気流れ方向視において入口側テーパー部11bの出口領域から両横外側に外れた箇所に配置して、第2洗浄器11の外側で入口側テーパー部11bと噴水室部11cとの間の凹状部に配置した洗浄水供給管18に接続してあり、このように洗浄水ノズル17を入口側テーパー部11bの出口領域から外れた箇所に配置して噴水室部11に装備することで、排出空気EA中の残留塗料ミストが洗浄水ノズル17に付着することを防止して、塗料ミスト付着による洗浄水ノズル17の目詰まりを防止するようにしてある。   Each of the plurality of washing water nozzles 17 is disposed at a location outside the both lateral outer sides from the outlet region of the inlet side tapered portion 11b in the air flow direction view in the fountain chamber portion 11c. The cleaning water supply pipe 18 is connected to the concave portion between the side taper portion 11b and the fountain chamber portion 11c, and the cleaning water nozzle 17 is thus removed from the outlet region of the inlet side taper portion 11b. By arranging and installing in the fountain chamber 11, the residual paint mist in the exhaust air EA is prevented from adhering to the washing water nozzle 17, and the clogging of the washing water nozzle 17 due to the paint mist adhering is prevented. It is.

また、洗浄水ノズル17を接続した洗浄水供給管18には、上流部に清掃用バルブ19を介装するとともに、清掃用バルブ19よりも下流側の部分で洗浄水ノズル17の接続箇所にプラグ20aにより閉塞した清掃用ソケット部20を設けてあり、これにより、清掃用バルブ19を閉じた状態でプラグ20aを外して清掃用ソケット部20を開放することで、その清掃用ソケット部20を通じて洗浄水ノズル17の内部に治具を挿入する形態で各洗浄水ノズル17のノズル孔を清掃できるようにしてある。   Further, the cleaning water supply pipe 18 connected with the cleaning water nozzle 17 is provided with a cleaning valve 19 in the upstream portion, and plugged into the connecting portion of the cleaning water nozzle 17 at a portion downstream of the cleaning valve 19. A cleaning socket portion 20 is provided that is closed by 20a, whereby the cleaning socket portion 20 is opened while the cleaning valve 19 is closed, and the cleaning socket portion 20 is opened to perform cleaning through the cleaning socket portion 20. The nozzle holes of the cleaning water nozzles 17 can be cleaned by inserting a jig into the water nozzles 17.

第2洗浄器11の横向き出口開口11eから洗浄水wの飛散水滴とともに排気室8に吐出される排出空気EAは、前述の如く排気室8に装備したエリミネータ12により水切り処理した上で排気ダクト14に導出するのに対し、エリミネータ12により排出空気EAから分離捕集した洗浄水w(即ち、第2洗浄器11で排出空気EA中の残存塗料ミストを捕捉した洗浄水wの飛散水滴)は、エリミネータ12を構成する縦姿勢の干渉部材22〜24を伝わらせて排気室8の底部に設けた後段集水槽21に回収する。   The exhaust air EA discharged into the exhaust chamber 8 together with the scattered water droplets of the cleaning water w from the lateral outlet opening 11e of the second cleaner 11 is drained by the eliminator 12 provided in the exhaust chamber 8 as described above, and then the exhaust duct 14 In contrast, the wash water w separated and collected from the exhaust air EA by the eliminator 12 (that is, scattered water droplets of the wash water w capturing the residual paint mist in the exhaust air EA by the second washer 11) The vertical interference members 22 to 24 constituting the eliminator 12 are transmitted and collected in the rear water collecting tank 21 provided at the bottom of the exhaust chamber 8.

図2及び図3に示すように、水切り手段としてのエリミネータ12を構成するのに、排気室8には先ず、第2洗浄器11を配設した側壁10に向って開口する凹状横断面形状(本例では「コ」の字状横断面形状)で縦姿勢の第1干渉部材22を、隣り合う第1干渉部材22どうしの間に第1通気路f1を形成する状態で、ブース長さ方向(即ち、複数の第2洗浄器11の並び方向)に並設してある。   As shown in FIGS. 2 and 3, in order to constitute the eliminator 12 as a draining means, the exhaust chamber 8 first has a concave cross-sectional shape that opens toward the side wall 10 in which the second cleaning device 11 is disposed ( In this example, the first interference member 22 in a vertical posture with a “U” -shaped cross-sectional shape) is formed in the booth length direction in a state where the first air passage f1 is formed between the adjacent first interference members 22. (That is, they are arranged side by side in the direction in which the plurality of second washers 11 are arranged).

また、排気室8において第1干渉部材22の横列に対する空気流れ方向の下流側には、第1干渉部材22どうしの間の第1通気路f1に向って開口する凹状横断面形状(本例では同じく「コ」の字状横断面形状)で縦姿勢の第2干渉部材23を、隣り合う第2干渉部材23どうしの間に第2通気路f2を形成する状態で、第1通気路f1の夫々に対応させて複数の第2洗浄器11の並び方向に並設してある。   Further, in the exhaust chamber 8, on the downstream side in the air flow direction with respect to the row of the first interference members 22, a concave cross-sectional shape that opens toward the first air passage f <b> 1 between the first interference members 22 (in this example, Similarly, in the state where the second interference member 23 in the vertical direction with the “U” -shaped cross-sectional shape) is formed between the adjacent second interference members 23, the second air passage f <b> 2 is formed between the first air passages f <b> 1. Corresponding to each of them, the plurality of second washers 11 are arranged in parallel.

さらに、排気室8において第2干渉部材23の横列に対する空気流れ方向の下流側には、第2干渉部材23に向って開口する凹状横断面形状(本例では同じく「コ」の字状横断面形状)で縦姿勢の第3干渉部材24を、隣り合う第3干渉部材24どうしの間に第3通気路f3を形成する状態で、第2干渉部材23の夫々に対応させて複数の第2洗浄器11の並び方向に並設してある。   Further, in the exhaust chamber 8, on the downstream side in the air flow direction with respect to the row of the second interference members 23, a concave cross-sectional shape that opens toward the second interference member 23 (in this example, also a “U” -shaped cross-section). The third interference member 24 in the vertical shape in the shape) has a plurality of second interference members 23 corresponding to each of the second interference members 23 in a state where the third air passages f3 are formed between the adjacent third interference members 24. They are arranged side by side in the direction in which the cleaners 11 are arranged.

そして、この3列構成において、各第2干渉部材23を2分割構成にする形態で、各第2干渉部材23の平面視中央部分には、対応する第1通気路f1における平面視中央部分を通過した排出空気EA″を第3干渉部材24の側へ短絡的に通過させる短絡通気路fbを形成してある。   In this three-row configuration, each second interference member 23 is divided into two parts, and the center portion in plan view of each second interference member 23 has a center portion in plan view in the corresponding first air passage f1. A short-circuit air passage fb that allows the exhaust air EA ″ that has passed through to the third interference member 24 side to be short-circuited is formed.

つまり、このエリミネータ12では、複数の第2洗浄器11夫々の横向き出口開口11eから排出空気EAとともに排出される塗料ミスト捕捉後の洗浄水wを、排出空気EAが第1〜第3干渉部材22〜24を迂回して第1〜第3通気路f1〜f3を通過する間に慣性により第1〜第3干渉部材22〜24のいずれかに衝突させて排出空気EAから分離し、これにより排出空気EAを水切り処理する。   That is, in the eliminator 12, the cleaning air w after capturing the paint mist discharged together with the discharge air EA from the lateral outlet openings 11e of the plurality of second cleaning devices 11 is used as the discharge air EA as the first to third interference members 22. While passing through the first to third air passages f1 to f3 by bypassing -24, they collide with any of the first to third interference members 22 to 24 due to inertia and separated from the exhaust air EA, thereby discharging Drain the air EA.

そして、この水切り処理において、隣り合う第1干渉部材22どうしの間の第1通気路f1を通過する排出空気EAのうち平面視で第1通気路f1の両横部分を通過する排出空気EA′に含まれる洗浄水wは、それら両横部分通過の排出空気流EA′に対向する第2干渉部材23に衝突させることで排出空気EA′から分離する。   In this draining process, out of the exhaust air EA passing through the first air passage f1 between the adjacent first interference members 22, the exhaust air EA ′ passing through both lateral portions of the first air passage f1 in plan view. Is separated from the exhaust air EA ′ by colliding with the second interference member 23 facing the exhaust air flow EA ′ passing through both lateral portions.

また、隣り合う第1干渉部材22どうしの間の第1通気路f1を通過する排出空気EAのうち平面視で第1通気路f1の中央部分を通過する排出空気EA″に含まれる洗浄水wは、その中央部分通過の排出空気流EA″を2分割構成の第2干渉部材24の平面視中央部分に形成した短絡通気路fbに短絡的に通過させて、その短絡排出空気流EA″に対向する第3干渉部材24に衝突させることで排出空気EA″から分離する。   Further, the washing water w included in the exhaust air EA ″ that passes through the central portion of the first air passage f1 in plan view among the exhaust air EA that passes through the first air passage f1 between the adjacent first interference members 22. Passes the exhaust air flow EA ″ passing through the central portion in a short-circuit manner through the short-circuit air passage fb formed in the center portion of the second interference member 24 in the two-part configuration in a plan view, and converts it into the short-circuit exhaust air flow EA ″. It is separated from the exhaust air EA ″ by colliding with the opposing third interference member 24.

即ち、図7に示す如く、平面視中央部分に短絡通気路fbを形成した第2干渉部材23を省略して、第1通気路f1を通過する排出空気EAに含まれる洗浄水wの全てを第3干渉部材24に衝突させて排出空気EAから分離する従前のエリミネータでは、同図7に示すように、第1通気路f1を通過する排出空気EAのうち平面視で第1通気路f1の両横部分を通過する排出空気EA′に含まれる洗浄水wの方が、平面視で第1通気路f1の中央部分を通過する排出空気EA″に含まれる洗浄水wに比べ、第3干渉部材24への衝突に至るまでに要する旋回半径方向外側への移動距離r(いわゆる沈降距離)が大きくなる。   That is, as shown in FIG. 7, the second interference member 23 having the short-circuit air passage fb formed in the central portion in plan view is omitted, and all the washing water w contained in the exhaust air EA passing through the first air passage f1 is removed. In the conventional eliminator that collides with the third interference member 24 and separates from the exhaust air EA, as shown in FIG. 7, the exhaust air EA that passes through the first air passage f1 in the first air passage f1 in plan view. The cleaning water w contained in the exhaust air EA ′ passing through both lateral portions is more susceptible to the third interference than the cleaning water w contained in the exhaust air EA ″ passing through the central portion of the first air passage f1 in plan view. The moving distance r (so-called settling distance) to the outside in the turning radius direction required until the collision with the member 24 is increased.

この為、平面視で第1通気路f1の両横部分を通過する排出空気EA′に含まれる洗浄水w(特に小滴で小質量の洗浄水)が第3干渉部材24への衝突に至らないままで排出空気EAとともに持ち去られてしまい易く、そのことで洗浄水wの分離効率が低くなる問題が生じる。また、上記の必要移動距離r(沈降距離)を小さくして洗浄水wの分離効率を高く確保するには、第1通気路f1の幅寸法dを小さくしなければならず、その分、通過排出空気EAの圧力損失を小さく止めるのに第1通気路f1の必要高さ(即ち、各干渉部材22〜24の必要高さ)が大きくなって装置が大型化する問題が生じる。   For this reason, the cleaning water w (especially cleaning water with small droplets and a small mass) contained in the exhaust air EA ′ passing through both lateral portions of the first air passage f1 in plan view leads to a collision with the third interference member 24. It is easy to be carried away with the exhaust air EA without being present, which causes a problem that the separation efficiency of the washing water w is lowered. In addition, in order to reduce the necessary moving distance r (sedimentation distance) and to ensure high separation efficiency of the washing water w, the width dimension d of the first air passage f1 must be reduced, and the passage is correspondingly increased. In order to keep the pressure loss of the exhaust air EA small, the required height of the first air passage f1 (that is, the required height of each of the interference members 22 to 24) increases, resulting in a problem that the apparatus becomes large.

これに対し、上記の如く平面視中央部分に短絡通気路fbを形成した第2干渉部材23を設けることで、平面視で第1通気路f1の両横部分を通過する排出空気EA′及び第1通気路f1の中央部分を通過する排出空気EA″のいずれについても、それら排出空気EA′,EA″に含まれる洗浄水wの必要移動距離r(沈降距離)を小さくすることができ、これにより、第1通気路f1の必要高さを小さくして装置を小型化しながらも洗浄水wの分離効率を高く確保することができる。   On the other hand, by providing the second interference member 23 in which the short-circuit air passage fb is formed in the central portion in the plan view as described above, the exhaust air EA ′ passing through both lateral portions of the first air passage f1 in the plan view and the first For any of the exhaust air EA ″ passing through the central portion of the one air passage f1, the required moving distance r (sedimentation distance) of the wash water w contained in the exhaust air EA ′, EA ″ can be reduced. Accordingly, it is possible to ensure a high separation efficiency of the washing water w while reducing the required height of the first air passage f1 and reducing the size of the apparatus.

第1干渉部材22のうち第2洗浄器11の横向き出口開口11eに正対する第1干渉部材22Aについては、その凹状横断面形状における凹状部の深さが他の干渉部材の凹状横断面形状における凹状部の深さhより大きい(ha>h)構造にしてあり、これにより、第2洗浄器11の横向き出口開口11eに正対する第1干渉部材22Aに第2洗浄器11から吐出される排出空気EAが衝突する際の勢いを緩和して、その衝突による洗浄水wの飛散を小さくすることで、第2洗浄器11の横向き出口開口11eに正対する第1干渉部材22Aでの洗浄水wの分離効率を高く確保するようにしてある。   Of the first interference member 22, the first interference member 22 </ b> A that faces the lateral outlet opening 11 e of the second cleaning device 11 has the depth of the concave portion in the concave cross-sectional shape in the concave cross-sectional shape of the other interference members. The structure is larger than the depth h of the concave portion (ha> h), whereby the discharge discharged from the second cleaner 11 to the first interference member 22A facing the lateral outlet opening 11e of the second cleaner 11. Washing water w at the first interference member 22A facing the lateral outlet opening 11e of the second washer 11 is reduced by reducing the momentum when the air EA collides and reducing the scattering of the washing water w due to the collision. High separation efficiency is ensured.

また、第2洗浄器11の横向き出口開口11eに正対する第1干渉部材22Aの両横縁部には、平面視で第1通気路の中央部分に向って延び出る延出板部22aを設けてあり、これにより、第2洗浄器11から吐出される排出空気EAが延出板部22aを迂回するように大きく旋回しながら第1通気路f1に侵入する形態にして、この大きな旋回により、排出空気EAに含まれる洗浄水wを一層確実に排出空気EAから分離できるようにしてある。   In addition, on both lateral edges of the first interference member 22A facing the lateral outlet opening 11e of the second cleaning device 11, extended plate portions 22a extending toward the central portion of the first air passage in plan view are provided. With this, the exhaust air EA discharged from the second cleaning device 11 enters the first air passage f1 while largely turning so as to bypass the extension plate portion 22a. The washing water w contained in the exhaust air EA can be more reliably separated from the exhaust air EA.

そしてまた、第2洗浄器11の横向き出口開口11eとそれに正対する第1干渉部材22Aとの間には、第2洗浄器11から吐出される排出空気EAを衝突させて第1干渉部材22Aの長さ方向に分散させる分散用衝突部材25を設けてあり、これにより、第1干渉部材22Aへの衝突による洗浄水wの分離効率を一層高めるようにしてある。   In addition, the discharge air EA discharged from the second cleaning device 11 is caused to collide between the lateral outlet opening 11e of the second cleaning device 11 and the first interference member 22A that faces the opening 11e. A dispersing collision member 25 for dispersing in the length direction is provided, thereby further increasing the separation efficiency of the washing water w due to the collision with the first interference member 22A.

図8に示すように、洗浄室7底部の集水槽16に回収した洗浄水w(即ち、第1洗浄器9を通過した排出空気EAから分離した洗浄水w)については、集水槽16から第1流下路26aを通じ第1流入槽27aに流下させて、この第1流入槽27aで受け止めた上で自然流下により第1流入槽27aから第1分離槽28aの一端部に流入させる。   As shown in FIG. 8, the cleaning water w collected in the water collecting tank 16 at the bottom of the cleaning chamber 7 (that is, the cleaning water w separated from the exhausted air EA that has passed through the first cleaning device 9) is collected from the water collecting tank 16. It flows down to the 1st inflow tank 27a through the 1st inflow path 26a, and after receiving by this 1st inflow tank 27a, it is made to flow in from the 1st inflow tank 27a to the one end part of the 1st separation tank 28a by natural flow.

この第1分離槽28aでは、そこでの貯留期間中に流入洗浄水w(即ち、第1洗浄器9での使用済み洗浄水)に含まれる塗料分を塗料スラッジとして槽内洗浄水wの表層部に浮上分離させる。   In this 1st separation tank 28a, the surface layer part of the washing water w in a tank is made into the paint sludge in the inflow washing water w (namely, used washing water in the 1st washing device 9) during the storage period there. To surface.

そして、塗料分が浮上分離した後の浄化洗浄水wを第1分離槽28aの他端部における底部から取り出し、この浄化洗浄水wを第1循環ポンプP1により第1給水路30aを通じて散水板6cに供給することで、その浄化洗浄水wを第1洗浄器9用の洗浄水wとして再使用する。   Then, the purified cleaning water w after the paint component floats and separates is taken out from the bottom at the other end of the first separation tank 28a, and this purified cleaning water w is sprayed through the first water supply path 30a by the first circulation pump P1 and the water spray plate 6c. The purified cleaning water w is reused as the cleaning water w for the first cleaning device 9.

また、第1分離槽28aにおける貯留洗浄水wの表層部に浮かぶ塗料スラッジは、第1分離槽28aの他端部に配備した掻き取り装置31aにより第1分離槽28aから取り出す。   Further, the paint sludge floating on the surface layer of the stored washing water w in the first separation tank 28a is taken out from the first separation tank 28a by the scraping device 31a provided at the other end of the first separation tank 28a.

一方、排気室8底部の後段集水槽21に回収した洗浄水w(即ち、第2洗浄器11を通過した排出空気EAから分離した洗浄水w)については、後段集水槽21から第2流下路26bを通じ第2流入槽27bに流下させて、この第2流入槽27bで受け止めた上で自然流下により第2流入槽27bから第2分離槽28bの一端部に流入させる。   On the other hand, with respect to the washing water w collected in the rear water collection tank 21 at the bottom of the exhaust chamber 8 (that is, the washing water w separated from the exhaust air EA that has passed through the second washing device 11), the second downstream flow path from the rear water collection tank 21 It is made to flow down to the 2nd inflow tank 27b through 26b, and after receiving by this 2nd inflow tank 27b, it is made to flow in from the 2nd inflow tank 27b to the one end part of the 2nd separation tank 28b by natural flow.

この第2分離槽28bでは、そこでの貯留期間中に流入洗浄水w(即ち、第2洗浄器11での使用済み洗浄水)に含まれる塗料分を塗料スラッジとして槽内洗浄水wの表層部に浮上分離させる。   In the second separation tank 28b, the surface portion of the washing water w in the tank is used as a paint sludge in the inflow washing water w (that is, the used washing water in the second washing device 11) during the storage period. To surface.

そして、塗料分が浮上分離した後の浄化洗浄水wを第2分離槽28bの他端部における底部から取り出し、この浄化洗浄水wを第2循環ポンプP2により第2給水路30bを通じて各第2洗浄器11の洗浄水ノズル17に供給することで、その浄化洗浄水wを第2洗浄器11用の洗浄水wとして再使用する。   Then, the purified cleaning water w after the paint component floats and separates is taken out from the bottom at the other end of the second separation tank 28b, and this purified cleaning water w is supplied to each second through the second water supply passage 30b by the second circulation pump P2. By supplying the cleaning water nozzle 17 of the cleaning device 11, the purified cleaning water w is reused as the cleaning water w for the second cleaning device 11.

また、第2給水路30bには、第2分離槽28bからの浄化洗浄水wに残留する塗料分を分離除去するスプリングフィルタ32を介装してあり、このスプリングフィルタ32により残留塗料分を除去した高浄化洗浄水wを各第2洗浄器11に供給する。   The second water supply passage 30b is provided with a spring filter 32 that separates and removes the paint remaining in the purified washing water w from the second separation tank 28b. The spring filter 32 removes the remaining paint. The highly purified cleaning water w thus supplied is supplied to each second cleaning device 11.

32aはスプリングフィルタ32に対する逆洗路、32b〜32dは逆洗用バルブであり、スプリングフィルタ32を逆洗操作するときには、逆洗用バルブ32b〜32dを切り換え操作して、第2分離槽28bから第2給水路30bに取り出した浄化洗浄水wを逆洗路32aを通じてスプリングフィルタ32に対して逆向きに通過させる。   32a is a backwash path for the spring filter 32, and 32b to 32d are backwash valves. When the spring filter 32 is backwashed, the backwash valves 32b to 32d are switched and the The purified cleaning water w taken out to the second water supply path 30b is passed through the backwash path 32a in the reverse direction with respect to the spring filter 32.

この逆洗操作でスプリングフィルタ32から排出される塗料分を含む洗浄水wは、逆洗用排水路32eを通じて第1流入槽27aに導入する。   The washing water w containing the paint discharged from the spring filter 32 by this back washing operation is introduced into the first inflow tank 27a through the back washing drainage channel 32e.

33は第1分離槽28aと第2分離槽28bとにわたらせた連通路、33aは連通路33に介装した常開の水位操作バルブである。また、34は第2分離槽28bの他端部における底部から第2流入槽27bにわたらせた水位操作路、34aは水位操作路34に介装した水位操作ポンプである。   Reference numeral 33 denotes a communication path extending between the first separation tank 28 a and the second separation tank 28 b, and 33 a is a normally open water level operation valve interposed in the communication path 33. Reference numeral 34 denotes a water level operation path extending from the bottom of the other end of the second separation tank 28b to the second inflow tank 27b, and 34a denotes a water level operation pump interposed in the water level operation path 34.

即ち、第2分離槽28bにおいて貯留洗浄水wの表層部に浮上分離させた塗料スラッジを回収する際には、常開の水位操作バルブ33aを閉じた状態で水位操作ポンプ34aを起動することにより、第1分離槽28aの他端部における底部から水位操作路34に浄化洗浄水wを取り出して、この浄化洗浄水wを水位操作ポンプ34aにより水位操作路34及び第2流入槽27bを通じて第2分離槽28bに送ることで第2分離槽28bの水位を上昇させ、この水位上昇により、第2分離槽28bにおける浮上塗料スラッジを移送堰35から溢出させて第1分離槽28aに流入させる。   That is, when collecting paint sludge that floats and separates on the surface layer of the stored washing water w in the second separation tank 28b, the water level operation pump 34a is activated with the normally open water level operation valve 33a closed. The purified washing water w is taken out from the bottom of the other end of the first separation tank 28a to the water level operation path 34, and this purified washing water w is secondly passed through the water level operation path 34 and the second inflow tank 27b by the water level operation pump 34a. By sending it to the separation tank 28b, the water level of the second separation tank 28b is raised, and by this rise in the water level, the floating paint sludge in the second separation tank 28b overflows from the transfer weir 35 and flows into the first separation tank 28a.

そして、この移送堰35を超えてのスラッジ移送が完了すると、水位操作ポンプ34aを停止するとともに水位操作バルブ33aを開き状態に戻し、これにより、第1及び第2分離槽28a,28bの水位が互いに等しくなる通常状態に戻す。   When the sludge transfer beyond the transfer weir 35 is completed, the water level operation pump 34a is stopped and the water level operation valve 33a is returned to the open state, whereby the water levels of the first and second separation tanks 28a and 28b are changed. Return to the normal state of being equal to each other.

36は第2流入槽27bから第1及び第2分離槽28a,28bに対して新鮮洗浄水wを補給する補給水路である。   Reference numeral 36 denotes a replenishment water channel that replenishes the first and second separation tanks 28a and 28b with fresh washing water w from the second inflow tank 27b.

また、第2分離槽28bから第1分離槽28aに流入させた塗料スラッジは、第1分離槽28aで浮上分離した塗料スラッジとともに、第1分離槽28aに装備の掻き取り装置31aにより第1分離槽28aから取り出す。   In addition, the paint sludge that has flowed into the first separation tank 28a from the second separation tank 28b is first separated by the scraping device 31a equipped in the first separation tank 28a together with the paint sludge that has floated and separated in the first separation tank 28a. Remove from tank 28a.

なお、ここでは第2分離槽28bの水位操作により第2分離槽28bにおける浮上塗料スラッジを第1分離槽28aに移送する例を示したが、これに代えて、第2分離槽28bにおける浮上スラッジをポンプ輸送により第1分離槽28aに移送するなどの方式を採用してもよい。   In addition, although the example which transfers the floating paint sludge in the 2nd separation tank 28b to the 1st separation tank 28a by the water level operation of the 2nd separation tank 28b was shown here, it replaced with this and the floating sludge in the 2nd separation tank 28b was shown. A method may be employed in which the gas is transferred to the first separation tank 28a by pumping.

洗浄水の循環方式について同図8に示した循環方式を採用するのに代えて図9に示す循環方式を採用してもよい。   Instead of adopting the circulation method shown in FIG. 8 for the washing water circulation method, the circulation method shown in FIG. 9 may be adopted.

即ち、図9に示す洗浄水循環方式では、洗浄室7底部の集水槽16に回収した洗浄水w(即ち、第1洗浄器9を通過した排出空気EAから分離した洗浄水w)については、集水槽16から第1流下路26aを通じ第1流入槽27aに流下させて、この第1流入槽27aで受け止めた上で自然流下により第1流入槽27aから共通分離槽28の一端部に流入させる。   That is, in the cleaning water circulation system shown in FIG. 9, the cleaning water w collected in the water collecting tank 16 at the bottom of the cleaning chamber 7 (that is, the cleaning water w separated from the exhaust air EA that has passed through the first cleaning device 9) is collected. The water is allowed to flow from the water tank 16 to the first inflow tank 27a through the first downflow path 26a.

一方、排気室8底部の後段集水槽21に回収した洗浄水w(即ち、第2洗浄器11を通過した排出空気EAから分離した洗浄水w)についても、、後段集水槽21から第2流下路26bを通じ第2流入槽27bに流下させて、この第2流入槽27bで受け止めた上で自然流下により第2流入槽27bから共通分離槽28の一端部に流入させる。
共通分離槽28では、そこでの貯留期間中に流入洗浄水w(即ち、第1洗浄器9での使用済み洗浄水及び第2洗浄器11での使用済み洗浄水)に含まれる塗料分を塗料スラッジとして槽内洗浄水wの表層部に浮上分離させる。
On the other hand, the washing water w collected in the rear water collection tank 21 at the bottom of the exhaust chamber 8 (that is, the washing water w separated from the exhaust air EA that has passed through the second washing device 11) also flows down from the rear water collection tank 21 into the second flow. It flows down to the 2nd inflow tank 27b through the path | route 26b, and after receiving by this 2nd inflow tank 27b, it is made to flow into the one end part of the common separation tank 28 from the 2nd inflow tank 27b by natural flow.
In the common separation tank 28, the paint contained in the inflow washing water w (that is, the used washing water in the first washing device 9 and the used washing water in the second washing device 11) during the storage period there is applied to the paint. It floats and separates as a sludge on the surface layer of the washing water w in the tank.

共通分離槽28における貯留洗浄水wの表層部に浮かぶ塗料スラッジは、共通分離槽28の他端部に配備した掻き取り装置31により共通分離槽28から取り出す。   The paint sludge floating on the surface layer of the stored washing water w in the common separation tank 28 is taken out from the common separation tank 28 by the scraping device 31 provided at the other end of the common separation tank 28.

そして、塗料分が浮上分離した後の浄化洗浄水wを共通分離槽28の他端部における底部から第1給水路30aへ取り出し、この浄化洗浄水wを第1循環ポンプP1により第1給水路30aを通じて散水板6cに供給することで、その浄化洗浄水wを第1洗浄器9用の洗浄水wとして再使用する。   Then, the purified cleaning water w after the paint component has been floated and separated is taken out from the bottom of the other end of the common separation tank 28 to the first water supply path 30a, and this purified cleaning water w is supplied to the first water supply path by the first circulation pump P1. The purified cleaning water w is reused as the cleaning water w for the first cleaning device 9 by supplying the water spray plate 6c through 30a.

また、塗料分が浮上分離した後の浄化洗浄水wを共通分離槽28の他端部における底部から第2給水路30bへ取り出し、この浄化洗浄水wを第2循環ポンプP2により第2給水路30bを通じて各第2洗浄器11の洗浄水ノズル17に供給することで、その浄化洗浄水wを第2洗浄器11用の洗浄水wとして再使用する。   Further, the purified cleaning water w after the paint component has been floated and separated is taken out from the bottom at the other end of the common separation tank 28 to the second water supply path 30b, and this purified cleaning water w is supplied to the second water supply path by the second circulation pump P2. The purified cleaning water w is reused as the cleaning water w for the second cleaning device 11 by supplying the cleaning water nozzle 17 of each second cleaning device 11 through 30b.

第2給水路30bには、共通分離槽28からの浄化洗浄水wに残留する塗料分を分離除去するスプリングフィルタ32を介装してあり、このスプリングフィルタ32により残留塗料分を除去した高浄化洗浄水wを各第2洗浄器11に供給する。   The second water supply passage 30b is provided with a spring filter 32 that separates and removes the paint remaining in the purified cleaning water w from the common separation tank 28. The spring filter 32 removes the remaining paint for high purification. Washing water w is supplied to each second washer 11.

なお、スプリングフィルタ32の逆洗操作については図8に示す洗浄水循環方式と同じである。   The back washing operation of the spring filter 32 is the same as the washing water circulation method shown in FIG.

以上のように、溶剤性クリア塗装工程部4における内板塗装ゾーン4a及び外板塗装ゾ
ーン4b(図1参照)の夫々については、塗装排気浄化用の洗浄器として、散水板6cか
らの溢出洗浄水w10を用いる第1洗浄器9と、洗浄水ノズル17からの噴出洗浄水wを
用いる第2洗浄器11とをその順で空気流れ方向に直列に並べて塗装室6からの排気風路
に装備する。
As described above, each of the inner plate coating zone 4a and the outer plate coating zone 4b (see FIG. 1) in the solvent-based clear coating process section 4 is used as a cleaning device for purifying exhaust gas from the overflow spray plate 6c. The first washer 9 using the water w10 and the second washer 11 using the washing water w ejected from the washing water nozzle 17 are arranged in that order in series in the air flow direction and installed in the exhaust air passage from the coating chamber 6. To do.

そして、第1及び第2洗浄器9,11を排気風路に装備するにあたり、前述の如く第2洗浄器11の横向き入口開口11aを縦筒構造の第1洗浄器9における器壁(詳しくは、器壁の外面)に対して間隔を開けた状態で対向させることで(図2及び図3参照)、塗装室6からの排出空気EAに対する全体としての洗浄効果を高く確保しながら、塗装室6での騒音値を効果的に低減するようにしてある。   When the first and second cleaners 9 and 11 are installed in the exhaust air passage, as described above, the lateral inlet opening 11a of the second cleaner 11 is connected to the wall of the first cleaner 9 having a vertical cylindrical structure (more specifically, The outer surface of the vessel wall) with a gap (see FIGS. 2 and 3), while maintaining a high overall cleaning effect on the exhaust air EA from the coating chamber 6, while maintaining a high cleaning effect. The noise value at 6 is effectively reduced.

即ち、第2洗浄器11の入口開口11aから上流側に向けて放出される洗浄騒音は、第1洗浄器9の器壁に衝突することで、減衰するとともに第1洗浄器9の出口開口9bから外れた方向に一次反射し、その後、二次反射や三次反射を経て大きく減衰した洗浄騒音のみが上流側の第1洗浄器9をその出口開口9bから上流側に向けて通過し、この通過過程において、それら二次反射や三次反射の洗浄騒音が第1洗浄器9における散布洗浄水wに吸収されて更に減衰する。   That is, the cleaning noise released toward the upstream side from the inlet opening 11a of the second cleaning device 11 is attenuated by colliding with the wall of the first cleaning device 9, and the outlet opening 9b of the first cleaning device 9 is attenuated. Only the cleaning noise that has been primarily reflected in the direction away from the center and then greatly attenuated through the secondary and tertiary reflections passes through the upstream first cleaning device 9 from the outlet opening 9b toward the upstream side. In the process, the cleaning noise of the secondary reflection and the tertiary reflection is absorbed by the sprayed cleaning water w in the first cleaning device 9 and further attenuated.

したがって、塗装室6は実質的に、第2洗浄器11との洗浄機能の分担で洗浄騒音も小さい第1洗浄器9の入口開口9aから放出される洗浄騒音だけが侵入するのに近い状態にすることができ、これにより、塗装室6からの排出空気EAに対する全体としての洗浄効果を高く確保しながら、あるいは、更に高めながら、塗装室6での騒音値を効果的に低減することができる。   Accordingly, the coating chamber 6 is substantially in a state where only the cleaning noise emitted from the inlet opening 9a of the first cleaning device 9 is small due to the sharing of the cleaning function with the second cleaning device 11 and enters the first cleaning device 9. Accordingly, it is possible to effectively reduce the noise value in the painting chamber 6 while ensuring or enhancing the overall cleaning effect on the exhaust air EA from the painting chamber 6. .

そしてまた、第2洗浄器11の入口開口11aを第1洗浄器9の器壁に対向させることで、第1及び第2洗浄器9,11を配置する洗浄室7もコンパクト化することができて、塗装設備の設置性を高めるとともに設備コストも低減することができる。   Further, the cleaning chamber 7 in which the first and second cleaning devices 9 and 11 are arranged can be made compact by making the inlet opening 11a of the second cleaning device 11 face the wall of the first cleaning device 9. Thus, the installation cost of the painting equipment can be improved and the equipment cost can be reduced.

なお、塗装排気浄化用の洗浄器では一般に、洗浄器での通過排出空気EAの圧力損失Δpが高くなるほど洗浄効果は高くなるものの洗浄騒音が大きくなることから、上記の如く第1及び第2洗浄器9,11を直列配置で装備するにあたっては、第1洗浄器9での通過排出空気EAの圧力損失Δp1を小さくして、その分、第2洗浄器11での通過排出空気EAの圧力損失Δp2を大きくする形態で、第2洗浄器11での通過排出空気EAの圧力損失Δp2が第1洗浄器9での通過排出空気EAの圧力損失Δp1より大きくなるように第1洗浄器9及び第2洗浄器11を構成するのが望ましい。   In general, in the cleaning device for purifying exhaust paint, the higher the pressure loss Δp of the passing exhaust air EA in the cleaning device, the higher the cleaning effect but the higher the cleaning noise. When the devices 9 and 11 are installed in series, the pressure loss Δp1 of the passing exhaust air EA in the first cleaning device 9 is reduced, and the pressure loss of the passing exhaust air EA in the second cleaning device 11 is correspondingly reduced. By increasing Δp2, the pressure loss Δp2 of the passing exhaust air EA in the second cleaning device 11 is larger than the pressure loss Δp1 of the passing exhaust air EA in the first cleaning device 9, and It is desirable to configure the two washer 11.

即ち、このようにすれば、下流側の第2洗浄器11の入口開口11aから放出される洗浄騒音やその一次反射音が上流側の第1洗浄器9の出口開口9bに直達するのを防止することによる騒音値低減効果をさらに活かして、塗装室6での騒音値を一層効果的に低減することができる。   That is, in this way, the cleaning noise emitted from the inlet opening 11a of the downstream second cleaning device 11 and the primary reflected sound thereof are prevented from reaching the outlet opening 9b of the upstream first cleaning device 9 directly. The noise value in the painting chamber 6 can be further effectively reduced by further utilizing the effect of reducing the noise value.

排出空気EA中の塗料ミストを散布洗浄水wにより捕捉する塗料ミスト捕捉の捕捉効率(換言すれば、排出空気洗浄の洗浄効率)は、塗装室6で使用する塗料の種類や塗装室6での塗装作業形態など種々の条件によって異なり、上記した溶剤性クリア塗装工程部4における内板塗装ゾーン4a及び外板塗装ゾーン4b夫々の塗装室6は、散布洗浄水wによる塗料ミスト捕捉の捕捉効率が低い空気EAが排出される高負荷塗装室に該当する。   The capture efficiency of the paint mist that captures the paint mist in the exhaust air EA with the spray cleaning water w (in other words, the cleaning efficiency of the exhaust air cleaning) depends on the type of paint used in the coating chamber 6 and the coating chamber 6 The coating chamber 6 in each of the inner-plate coating zone 4a and the outer-plate coating zone 4b in the solvent-based clear coating process section 4 has a capture efficiency of capturing the paint mist by the spray washing water w, depending on various conditions such as the coating work form. Corresponds to a high-load painting chamber where low air EA is discharged.

これに対し、散布洗浄水wによる塗料ミスト捕捉の捕捉効率が高い空気EAが排出される低負荷塗装室(即ち、図1に示す9個の塗装ゾーンのうち溶剤性クリア塗装工程部4における内板塗装ゾーン4a及び外板塗装ゾーン4bの塗装室を除く7つの塗装ゾーン2a〜2c,3a〜3c,4c夫々の塗装室については、図10及び図11に示すように、第2制御器11を省略して、散水板6cにおけるブース幅方向の中央部に装備する縦筒構造の第1洗浄器9のみを設けてある。   On the other hand, the low load coating chamber (that is, the inner portion of the nine coating zones shown in FIG. As shown in FIGS. 10 and 11, the second controller 11 for the seven coating zones 2a to 2c, 3a to 3c, and 4c except for the coating chambers of the plate coating zone 4a and the outer plate coating zone 4b. Is omitted, and only the first washer 9 having a vertical cylinder structure provided at the center of the water spray plate 6c in the booth width direction is provided.

また、第2洗浄器11の省略に伴い、洗浄室7と排気室8とを仕切る側壁10も省略して実質的に洗浄室7のみを設ける構成にし、それに伴い、エリミネータ12は、第1洗浄器9を通過した排出空気EAに含まれる洗浄水wを分離する水切り手段として、洗浄室7に配備してある。   Further, along with the omission of the second cleaning device 11, the side wall 10 separating the cleaning chamber 7 and the exhaust chamber 8 is also omitted so that only the cleaning chamber 7 is provided, and accordingly, the eliminator 12 includes the first cleaning device. The washing chamber 7 is provided as a draining means for separating the washing water w contained in the exhaust air EA that has passed through the vessel 9.

さらに、第2洗浄器11の省略に伴い、エリミネータ12における全ての第1干渉部材22は、その凹状横断面形状における凹状部の深さが同じで、前述した延出板部22aや分散用衝突部材25も備えない同一構造のものにしてある。   Furthermore, with the omission of the second cleaning device 11, all the first interference members 22 in the eliminator 12 have the same depth of the concave portion in the concave cross-sectional shape, and the extension plate portion 22a and the dispersion collision described above. The members 25 are not provided with the same structure.

なお、エリミネータ12における各第2干渉部材23を2分割構成にする形態で、各第2干渉部材23の平面視中央部分に、対応する第1通気路f1における平面視中央部分を通過した排出空気EA″を第3干渉部材24の側へ短絡的に通過させる短絡通気路fbを形成し、これにより、第1通気路f1の必要高さを小さくして装置を小型化しながらも洗浄水wの分離効率を高く確保する点についての変更はない。   In addition, in the form in which each second interference member 23 in the eliminator 12 is divided into two parts, the exhaust air that has passed through the center portion in plan view in the corresponding first air passage f1 is in the center portion in plan view of each second interference member 23. A short-circuit air passage fb that allows EA ″ to pass through to the third interference member 24 side in a short-circuiting manner is formed, thereby reducing the required height of the first air passage f1 and reducing the size of the apparatus, while reducing the size of the cleaning water w. There is no change in terms of ensuring high separation efficiency.

つまり、複数の塗装室のうち、散布洗浄水wによる塗料ミスト捕捉の捕捉効率が低い空気が排出される高負荷塗装室については、その高負荷塗装室からの排気風路に第1及び第2洗浄器9,11を装備し、一方、散布洗浄水wによる塗料ミスト捕捉の捕捉効率が高い空気が排出される低負荷塗装室については、第2洗浄器11を省略して、その低負荷塗装室からの排気風路に第1洗浄器9のみを装備することで、低負荷塗装室に対する過剰設備を回避して設備コストや運転コストの無駄を回避しながら、高負荷塗装室に対する排気浄化用フィルタ手段の付加装備を不要にして、それらフィルタ手段に対する頻繁な更新処理を不要にする。   That is, among the plurality of painting chambers, the first and second exhaust air passages from the high-load painting chamber are first and second for a high-load painting chamber in which air with low capture efficiency of the paint mist capture by the spray washing water w is discharged. For low-load painting chambers equipped with washers 9 and 11, on the other hand, where high-efficiency capture of paint mist by spray wash water w is discharged, the second washer 11 is omitted and the low-load paint is removed. By installing only the first washer 9 in the exhaust air passage from the chamber, it is possible to purify exhaust gas to the high-load painting chamber while avoiding excessive facilities for the low-load painting chamber and avoiding waste of equipment costs and operating costs. Additional equipment for the filter means is not required, and frequent update processing for the filter means is not required.

〔別実施形態〕
次に本発明の別実施形態を列記する。
第1洗浄器9及び第2洗浄器11としては夫々、上記実施形態で示した方式・構造のものに限らず、種々の方式・構造のものを採用することができ、例えば、図12に示す通称Y型洗浄器や図13に示す通称W型洗浄器などを第1洗浄器9として採用してもよい。
[Another embodiment]
Next, other embodiments of the present invention will be listed.
Each of the first cleaning device 9 and the second cleaning device 11 is not limited to the system / structure shown in the above embodiment, and various systems / structures can be adopted, for example, as shown in FIG. A commonly known Y-type cleaner or a commonly-known W-type cleaner shown in FIG. 13 may be employed as the first cleaner 9.

また、次のサイクロン一体型洗浄器や分散板型洗浄器あるいは螺旋型洗浄器などを第2洗浄器11として採用してもよい。   Further, the following cyclone-integrated washer, dispersion plate washer, or spiral washer may be employed as the second washer 11.

図14は、サイクロン一体型洗浄器36を第2洗浄器11として採用した例を示し、このサイクロン一体型洗浄器36は、入口開口36aと、器内風路の横断面積が下流側ほど漸次的に縮小する入口側テーパー部36bと、器内風路の横断面積が最小となる絞り部36cと、器内風路の横断面積が下流側ほど漸次的に増大するデフューザ―部36dと、円筒状のサイクロン部36eとを備えている。   FIG. 14 shows an example in which the cyclone-integrated washer 36 is adopted as the second washer 11, and this cyclone-integrated washer 36 has an inlet opening 36a and the cross-sectional area of the internal air passage gradually decreases toward the downstream side. An inlet-side taper portion 36b that is reduced to an inner diameter, a throttle portion 36c that minimizes the cross-sectional area of the internal air passage, a diffuser portion 36d that gradually increases the cross-sectional area of the internal air passage toward the downstream side, and a cylindrical shape And a cyclone part 36e.

絞り部36cには、図15に示すように、その部分を高速で通過する排出空気EAに対して洗浄水wを噴出する複数の洗浄水ノズル17を装備してあり、サイクロン部36eでは、デフューザ―部36dから流入する排出空気EAを高速旋回させることで、その排出空気EAに含まれる洗浄水w(即ち、排出空気EA中の塗料ミストを捕捉した洗浄水wの水滴)を遠心分離により排出空気EAから分離させる。   As shown in FIG. 15, the throttle part 36c is equipped with a plurality of washing water nozzles 17 for ejecting the washing water w against the exhaust air EA passing through the part at high speed. In the cyclone part 36e, the diffuser -By rotating the exhaust air EA flowing in from the part 36d at high speed, the cleaning water w contained in the exhaust air EA (that is, the water droplets of the cleaning water w capturing the paint mist in the exhaust air EA) is discharged by centrifugation. Separate from air EA.

なお、このサイクロン一体型洗浄器36を第2洗浄器11として採用した場合、排出空気EA中の洗浄水wはサイクロン部36eで分離されることから、水切り手段としてのエリミネータ12の装備は不要にすることができる。   When this cyclone-integrated washer 36 is employed as the second washer 11, the washing water w in the exhaust air EA is separated by the cyclone part 36e, so the eliminator 12 as a draining means is not required to be equipped. can do.

図16は、分散板型洗浄器37を第2洗浄器11として採用した例を示し、この分散板型洗浄器37は、入口開口37aと、器内風路の横断面積が最小となる絞り部37bと、器内風路の横断面積が下流側ほど漸次的に増大するデフューザ―部37cとを備えている。
絞り部37bには、下流側に向けて洗浄水wを噴出する洗浄水ノズル17を設けるとともに、この洗浄水ノズル17から噴出された洗浄水wを衝突させることで、洗浄水wの飛散水滴を排出空気EAに対して分散させる分散板37dを設けてある。
FIG. 16 shows an example in which the dispersion plate type washer 37 is adopted as the second washer 11, and this dispersion plate type washer 37 has an inlet opening 37 a and a throttle part that minimizes the cross-sectional area of the internal air passage. 37b and a diffuser portion 37c in which the cross-sectional area of the internal air passage gradually increases toward the downstream side.
The throttle part 37b is provided with a washing water nozzle 17 for ejecting the washing water w toward the downstream side, and the washing water w ejected from the washing water nozzle 17 is collided so that scattered water droplets of the washing water w are discharged. A dispersion plate 37d that disperses the exhaust air EA is provided.

なお、図16に示す装備例では、分散板型洗浄器37の出口開口37eから放出される排出空気EAを反転させてエリミネータ12に通過させるようにしてある。   In the example of equipment shown in FIG. 16, the exhaust air EA discharged from the outlet opening 37e of the dispersion plate type washer 37 is reversed and passed through the eliminator 12.

図17は螺旋型洗浄器38を第2洗浄器11として採用した例を示し、この螺旋型洗浄器38では、洗浄水ノズル17から噴出した洗浄水wを案内部材38aにおける螺旋溝により案内することで螺旋状の洗浄水膜wsを形成し、この洗浄水膜wsに対して排出空気EAを突入させる。   FIG. 17 shows an example in which a spiral washer 38 is adopted as the second washer 11. In this spiral washer 38, the washing water w ejected from the washing water nozzle 17 is guided by the spiral groove in the guide member 38 a. Then, the spiral cleaning water film ws is formed, and the exhaust air EA enters the cleaning water film ws.

本発明は自動車ボディに限らず種々の被塗物を塗装する各種分野の塗装設備において利用することができる。   The present invention can be used not only in automobile bodies but also in various types of coating facilities for coating various objects.

6 塗装室
EA 排出空気
w 洗浄水
9 第1洗浄器
11 第2洗浄器
11a 第2洗浄器の入口開口
7 洗浄室
6c 散水板
9a 第1洗浄器の入口開口
9b 第1洗浄器の出口開口
9f 第1洗浄器の器内風路
9c 溢水堰
9d 第1洗浄器の出口側テーパー部
11e 第2洗浄器の出口開口
11f 第2洗浄器の器内風路
17 洗浄水ノズル
ws 洗浄水膜
11b 第2洗浄器の入口側テーパー部
11c 第2洗浄器の噴水室部
11d 第2洗浄器の絞り部
8 排気室
10 側壁
12 水切り手段(エリミネータ)
22 第1干渉部材
f1 第1通気路
23 第2干渉部材
f2 第2通気路
24 第3干渉部材
f3 第3通気路
fb 短絡通気路
22a 延出板部
25 分散用衝突部材
28 共通分離槽
32 フィルタ
28a 第1分離槽
28b 第2分離槽
6 Coating chamber EA Exhaust air w Washing water 9 First cleaning device 11 Second cleaning device 11a Entrance opening of second cleaning device 7 Cleaning chamber 6c Sprinkling plate 9a Entrance opening of first cleaning device 9b Exit opening of first cleaning device 9f In-vessel air passage 9c of the first washer 9c Overflow weir 9d Taper portion on the outlet side of the first washer 11e Outlet opening of the second washer 11f Inner air passage of the second washer 17 Washing water nozzle ws Washing water film 11b First 2 Inlet side taper portion of the cleaning device 11c Fountain chamber portion of the second cleaning device 11d Restriction portion of the second cleaning device 8 Exhaust chamber 10 Side wall 12 Draining means (eliminator)
22 1st interference member f1 1st ventilation path 23 2nd interference member f2 2nd ventilation path 24 3rd interference member f3 3rd ventilation path fb Short-circuit ventilation path 22a Extension plate part 25 Dispersion collision member 28 Common separation tank 32 Filter 28a First separation tank 28b Second separation tank

Claims (14)

塗装室からの排出空気を器内風路に高速化して通過させるとともに、高速化した排出空気に洗浄水を散布して排出空気中の塗料ミストを散布洗浄水により捕捉する塗装排気浄化用の洗浄器として、第1及び第2の洗浄器をその順で空気流れ方向に直列に並べて前記塗装室からの排気風路に装備してある塗装設備であって、
前記第2洗浄器の入口開口を前記第1洗浄器の器壁に対して間隔を開けた状態で対向させ
前記第2洗浄器には、その入口開口から出口開口に向けて器内風路を高速通過する排出空気に洗浄水を散布する手段として、通過排出空気に対し洗浄水を噴出する洗浄水ノズルを設け、
前記第2洗浄器は、その入口開口から空気流れ方向の下流側ほど器内風路の横断面積が漸次的に小さくなる入口側テーパー部と、その入口側テーパー部に続いて器内風路の横断面積が急増する噴水室部と、その噴水室部に続いて器内風路の横断面積が急減する絞り部とがその順で空気流れ方向に並ぶ構成にし、
前記洗浄水ノズルは、前記噴水室部のうち空気流れ方向視において前記入口側テーパー部の出口領域から外側に外れた箇所に配置してある塗装設備。
Cleaning for paint exhaust purification that allows the exhaust air from the painting chamber to pass through the internal air passage at high speed, and sprays cleaning water on the high-speed exhaust air and captures the paint mist in the exhaust air with the spray cleaning water. As a vessel, the first and second cleaning devices are arranged in series in the air flow direction in that order, and are installed in the exhaust air passage from the coating chamber,
The inlet opening of the second cleaner is opposed to the wall of the first cleaner with a space therebetween ,
The second scrubber has a scrubbing water nozzle that spouts scrubbing water against the passing exhaust air as means for spraying the scrubbing water to the exhaust air passing through the internal air passage from the inlet opening toward the outlet opening at high speed. Provided,
The second scrubber has an inlet taper portion in which the cross-sectional area of the internal air passage gradually decreases toward the downstream side of the air flow direction from the inlet opening, and the internal air passage following the inlet taper portion. The fountain chamber part where the cross-sectional area increases rapidly and the throttle part where the cross-sectional area of the internal air passage decreases rapidly following the fountain chamber part are arranged in that order in the air flow direction,
The washing water nozzle is a coating facility that is disposed at a location outside the fountain chamber portion outside the outlet region of the inlet side taper portion as viewed in the air flow direction .
前記洗浄水ノズルは、前記第2洗浄器の器内風路を横断する形態の洗浄水膜を噴出洗浄水により形成する構成にしてある請求項1に記載の塗装設備。 The coating equipment according to claim 1, wherein the cleaning water nozzle is configured to form a cleaning water film in a form crossing the internal air passage of the second cleaning device with the jet cleaning water . 前記絞り部において器内風路を形成する開口を前記第2洗浄器の出口開口にしてある請求項1又は2記載の塗装設備。 The painting facility according to claim 1 or 2, wherein an opening forming an internal air passage in the throttle portion is an outlet opening of the second cleaning device . 塗装室からの排出空気を器内風路に高速化して通過させるとともに、高速化した排出空気に洗浄水を散布して排出空気中の塗料ミストを散布洗浄水により捕捉する塗装排気浄化用の洗浄器として、第1及び第2の洗浄器をその順で空気流れ方向に直列に並べて前記塗装室からの排気風路に装備してある塗装設備であって、
前記第2洗浄器の入口開口を前記第1洗浄器の器壁に対して間隔を開けた状態で対向させ、
複数の前記第2洗浄器を、それらの横向き出口開口を同じ向きに向けた状態で、それら出口開口の向きとは平面視で直交する横方向に並べて排気室の側壁に配設し、
それら複数の第2洗浄器夫々の横向き出口開口から排出空気とともに排出される洗浄水を排出空気から分離する水切り手段を前記排気室において構成するのに、
前記側壁に向って開口する凹状横断面形状で縦姿勢の第1干渉部材を、隣り合う第1干渉部材どうしの間に第1通気路を形成する状態で、複数の前記第2洗浄器の並び方向に並設し、
この第1干渉部材の横列に対する空気流れ方向の下流側において、前記第1通気路に向って開口する凹状横断面形状で縦姿勢の第2干渉部材を、隣り合う第2干渉部材どうしの間に第2通気路を形成する状態で、前記第1通気路の夫々に対応させて複数の前記第2洗浄器の並び方向に並設し、
この第2干渉部材の横列に対する空気流れ方向の下流側において、前記第2干渉部材に向って開口する凹状横断面形状で縦姿勢の第3干渉部材を、隣り合う第3干渉部材どうしの間に第3通気路を形成する状態で、前記第2干渉部材の夫々に対応させて複数の前記第2洗浄器の並び方向に並設し、
この構成において、前記第2干渉部材の平面視中央部分には、対応する前記第1通気路における平面視中央部分を通過した排出空気を前記第3干渉部材の側へ短絡的に通過させる短絡通気路を形成してある塗装設備。
Cleaning for paint exhaust purification that allows the exhaust air from the painting chamber to pass through the internal air passage at high speed, and sprays cleaning water on the high-speed exhaust air and captures the paint mist in the exhaust air with the spray cleaning water. As a vessel, the first and second cleaning devices are arranged in series in the air flow direction in that order, and are installed in the exhaust air passage from the coating chamber,
The inlet opening of the second cleaner is opposed to the wall of the first cleaner with a space therebetween,
A plurality of the second scrubbers are arranged on the side wall of the exhaust chamber side by side in a horizontal direction orthogonal to the direction of the outlet openings in a state in which the lateral outlet openings are oriented in the same direction,
To constitute a draining means in the exhaust chamber for separating the wash water discharged together with the exhaust air from the lateral outlet opening of each of the plurality of second cleaners from the exhaust air.
A plurality of the second cleaning devices are arranged in such a state that the first interference member having a concave cross-sectional shape opening toward the side wall and having a vertical posture is formed, and a first air passage is formed between adjacent first interference members. Side by side,
On the downstream side in the air flow direction with respect to the row of the first interference members, a second interference member having a concave cross-sectional shape opening toward the first air passage and having a vertical posture is disposed between the adjacent second interference members. In the state of forming the second ventilation path, the plurality of second cleaning devices are arranged in parallel in correspondence with each of the first ventilation path,
On the downstream side in the air flow direction with respect to the row of the second interference members, a third interference member having a concave cross-sectional shape that opens toward the second interference member and having a vertical posture is disposed between adjacent third interference members. In a state of forming the third ventilation path, the plurality of second cleaning devices are arranged in parallel in correspondence with each of the second interference members,
In this configuration, the short-circuit ventilation that allows the exhaust air that has passed through the center portion in plan view in the corresponding first air passage to be short-circuited to the third interference member side is provided in the center portion in plan view of the second interference member. A painting facility that forms a road .
前記第2洗浄器の横向き出口開口に正対する前記第1干渉部材の凹状横断面形状は、前記第2及び第3干渉部材夫々の凹状横断面形状よりも凹状部の深さが大きい形状にしてある請求項4記載の塗装設備。 The concave cross-sectional shape of the first interference member facing the lateral outlet opening of the second cleaning device is a shape in which the depth of the concave portion is larger than the concave cross-sectional shape of each of the second and third interference members. The coating equipment according to claim 4 . 前記第2洗浄器の横向き出口開口に正対する前記第1干渉部材の両横縁部には、平面視で前記第1通気路の側に延び出る延出板部を設けてある請求項4又5記載の塗装設備。 5. An extension plate portion extending toward the first air passage in a plan view is provided on both lateral edges of the first interference member facing the lateral outlet opening of the second cleaning device. 5. Coating equipment according to 5 . 前記第2洗浄器の横向き出口開口とそれに正対する前記第1干渉部材との間には、前記第2洗浄器の横向き出口開口から排出される高速排出空気を衝突させて前記第1干渉部材の長さ方向に分散させる分散用衝突部材を設けてある請求項4〜6のいずれか1項に記載の塗装設備。 The high-speed exhaust air discharged from the lateral outlet opening of the second cleaning device collides between the lateral outlet opening of the second cleaning device and the first interference member facing the first outlet. The coating equipment according to any one of claims 4 to 6, wherein a dispersing collision member for dispersing in the length direction is provided . 前記第1洗浄器を通過した排出空気から分離した洗浄水、及び、前記第2洗浄器を通過した排出空気から分離した洗浄水を回収して、それら回収洗浄水から塗料分を分離除去する共通分離槽を設け、
この共通分離槽で塗料分を分離した洗浄水を前記第1及び第2洗浄器の夫々において通過排出空気に散布する構成にするとともに、
この共通分離槽から前記第2洗浄器に供給する洗浄水における残留塗料分をその供給洗浄水から分離除去するフィルタを設けてある請求項1〜7のいずれか1項に記載の塗装設備。
Commonly used to collect the wash water separated from the exhaust air that has passed through the first washer and the wash water separated from the exhaust air that has passed through the second washer, and to separate and remove the paint component from the recovered wash water Provided a separation tank,
In this common separation tank, the washing water separated from the paint is sprayed on the passing exhaust air in each of the first and second washing devices, and
The coating equipment according to any one of claims 1 to 7, further comprising a filter for separating and removing the residual paint in the cleaning water supplied from the common separation tank to the second cleaning device from the supplied cleaning water .
前記第1洗浄器を通過した排出空気から分離した洗浄水を回収して、その回収洗浄水から塗料分を分離除去する第1分離槽、及び、前記第2洗浄器を通過した排出空気から分離した洗浄水を回収して、その回収洗浄水から塗料分を分離除去する第2分離槽を各別に設け、
前記第1分離槽で塗料分を分離した洗浄水を前記第1洗浄器において通過排出空気に散布するとともに、前記第2分離槽で塗料分を分離した洗浄水を前記第2洗浄器において通過排出空気に散布する構成にしてある請求項1〜7のいずれか1項に記載の塗装設備。
A first separation tank that collects the washing water separated from the exhausted air that has passed through the first cleaning device, and separates and removes the paint component from the recovered cleaning water, and is separated from the exhausted air that has passed through the second cleaning device. A separate second separation tank is provided for collecting the washed water and separating and removing the paint from the collected washed water.
The cleaning water separated from the paint in the first separation tank is sprayed on the passing exhaust air in the first cleaning device, and the cleaning water separated from the paint in the second separation tank is passed through and discharged in the second cleaning device. The coating equipment according to any one of claims 1 to 7, which is configured to be dispersed in air .
前記第2分離槽から前記第2洗浄器に供給する洗浄水における残留塗料分をその供給洗浄水から分離除去するフィルタを設けてある請求項9記載の塗装設備。 The coating equipment according to claim 9, further comprising a filter for separating and removing residual paint in the cleaning water supplied from the second separation tank to the second cleaning device from the supplied cleaning water . 前記第2洗浄器での通過排出空気の圧力損失が前記第1洗浄器での通過排出空気の圧力損失より大きくなる状態に、それら第1及び第2洗浄器を構成してある請求項1〜10のいずれか1項に記載の塗装設備。 The first and second cleaners are configured such that the pressure loss of the passing exhaust air in the second cleaner is larger than the pressure loss of the passing exhaust air in the first cleaner. The coating equipment according to any one of 10 . 前記塗装室とその下方の洗浄室とを仕切る散水板を設け、
前記第1洗浄器は、前記塗装室に対して開口する上向きの入口開口と前記洗浄室に対して開口する下向きの出口開口とを備える縦筒構造にして、前記塗装室からの排出空気と前記散水板からの溢出洗浄水とを合流状態で器内風路に高速通過させる構成にしてある請求項1〜11のいずれか1項に記載の塗装設備。
A watering plate is provided to partition the coating chamber and the cleaning chamber below it,
The first cleaning device has a vertical cylindrical structure having an upward inlet opening that opens to the coating chamber and a downward outlet opening that opens to the cleaning chamber, and the exhaust air from the coating chamber and the The coating equipment according to any one of claims 1 to 11, wherein the overflow washing water from the water spray plate is configured to pass through the internal air passage at high speed in a merged state .
前記第1洗浄器の上部には、前記散水板における洗浄水を前記第1洗浄器の上向き入口開口に溢出させる溢水堰を形成し、
前記第1洗浄器の下部には、前記第1洗浄器の下向き出口開口の側ほど器内風路の横断面積が漸次的に小さくなる出口側テーパー部を形成してある請求項12記載の塗装設備。
On the upper part of the first cleaning device, an overflow weir is formed to overflow the cleaning water in the water spray plate into the upward inlet opening of the first cleaning device,
13. The coating according to claim 12, wherein an outlet-side taper portion is formed at a lower portion of the first cleaning device so that the cross-sectional area of the internal air passage gradually decreases toward the downward outlet opening of the first cleaning device. Facility.
複数の前記塗装室を備え、これら複数の塗装室のうち散布洗浄水による塗料ミスト捕捉の捕捉効率が低い空気が排出される高負荷塗装室については、その高負荷塗装室からの排気風路に前記第1及び第2洗浄器を装備し、
複数の前記塗装室のうち散布洗浄水による塗料ミスト捕捉の捕捉効率が高い空気が排出される低負荷塗装室については、前記第2洗浄器を省略して、その低負荷塗装室からの排気風路に前記第1洗浄器のみを装備してある請求項1〜13のいずれか1項に記載の塗装設備。
For a high-load painting chamber that has a plurality of the above-mentioned coating chambers and discharges air with a low trapping efficiency for capturing paint mist with spray washing water, the exhaust air passage from the high-load coating chamber Equipped with the first and second washer;
Of the plurality of coating chambers, the second cleaning device is omitted for the low-load coating chamber in which air with a high capture efficiency of capturing the paint mist by the spray cleaning water is discharged, and the exhaust air from the low-load coating chamber is omitted. The painting equipment according to any one of claims 1 to 13, wherein the road is equipped with only the first cleaning device .
JP2015033000A 2015-02-23 2015-02-23 Painting equipment Active JP6310871B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015033000A JP6310871B2 (en) 2015-02-23 2015-02-23 Painting equipment
PCT/JP2016/051219 WO2016136326A1 (en) 2015-02-23 2016-01-18 Painting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015033000A JP6310871B2 (en) 2015-02-23 2015-02-23 Painting equipment

Publications (2)

Publication Number Publication Date
JP2016155051A JP2016155051A (en) 2016-09-01
JP6310871B2 true JP6310871B2 (en) 2018-04-11

Family

ID=56788405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015033000A Active JP6310871B2 (en) 2015-02-23 2015-02-23 Painting equipment

Country Status (2)

Country Link
JP (1) JP6310871B2 (en)
WO (1) WO2016136326A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108498006A (en) * 2017-02-27 2018-09-07 得立鼎工业株式会社 Cyclone type dust collecting apparatus
CN108940701A (en) * 2018-08-31 2018-12-07 浙江日鼎涂装科技有限公司 A kind of overflow-type coating cloud trapping system
CN110152925B (en) * 2019-06-17 2020-04-17 佛山晋轰家具有限公司 Intelligent tasteless spraying equipment
JP6905550B2 (en) 2019-06-19 2021-07-21 トリニティ工業株式会社 Paint mist removal device and painting equipment
JP2021133269A (en) 2020-02-25 2021-09-13 トリニティ工業株式会社 Paint mist removal device and painting equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159865A (en) * 1982-03-16 1983-09-22 Taikisha Ltd Purifier for air containing paint mist of painting booth
JPS60168560A (en) * 1984-02-13 1985-09-02 Taikisha Ltd Paint mist removal apparatus of painting booth
JPS60197262A (en) * 1984-03-16 1985-10-05 Taikisha Ltd Paint mist removing apparatus
US5153034A (en) * 1990-05-23 1992-10-06 Binks Manufacturing Company Paint spray booth with plenum means of reduced cross section and method of operating the same
JP3104137B2 (en) * 1991-08-23 2000-10-30 本田技研工業株式会社 Collection device for unpainted paint in the painting booth
JP2585966Y2 (en) * 1992-02-06 1998-11-25 株式会社大氣社 Eliminator
JP4137160B2 (en) * 2007-01-30 2008-08-20 本田技研工業株式会社 painting booth

Also Published As

Publication number Publication date
JP2016155051A (en) 2016-09-01
WO2016136326A1 (en) 2016-09-01

Similar Documents

Publication Publication Date Title
JP6310871B2 (en) Painting equipment
CA2701915C (en) Fluid scrubber and spray booth including the fluid scrubber
US8435348B2 (en) Paint booth with purifier
CN100569383C (en) The device that is used for removing wet-paint overspray
US7959722B2 (en) Device and process for separating wet paint overspray
CA2622665A1 (en) Device and method for separating wet paint overspray
US10857494B2 (en) Exhaust configuration for a wet scrubber
JP5422814B2 (en) Paint collection system
KR101873863B1 (en) Painting booth and collecting method for paint dust
JP6335830B2 (en) Droplet collection device and paint exhaust cleaning device using the droplet collection device
JP2019115333A5 (en)
JP4731105B2 (en) Droplet collector and painting booth using the same
US5741178A (en) Reducing area, increasing velocity paint booth structure and method
US4601236A (en) Pump-less paint spray booth
EP3021986B1 (en) Spray booth with shallow depth under section and wet scrubber
JPH0670858U (en) Paint mist removal device
JP4526932B2 (en) painting booth
JP3499335B2 (en) painting booth
JP2007307543A (en) Coating booth
JPH09150082A (en) Coating booth
JP2000237654A (en) Vortex flow wet scrubber and coating spray booth equipped therewith
WO2005080005A1 (en) Fluid washer for a spray booth
JPH05146727A (en) Device for removing mist of coating material
JP2000237656A (en) Vortex type wet scrubber and coating spray booth equipped therewith
KR20210108657A (en) fine dust removing device installed between buildings

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20170309

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180109

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180215

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: 20180306

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180319

R150 Certificate of patent or registration of utility model

Ref document number: 6310871

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

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