528617 A7 B7 五、發明説明（1 ) 〔發明所屬之技術領域〕 本發明係關於一種吸引、捕捉回收在噴霧塗裝中所被 噴霧的塗料當中，沒有塗附在被塗裝物而飛散的塗料霧滴 的塗裝室，特別是針對利用排氣扇，在吸引氣流的同時也 一倂吸引塗料霧滴，並利用淋浴水來捕捉處理塗料霧滴後 ，形成淸淨空氣再予以排出之水洗式塗裝室。 〔先行技術〕 一般的水洗式塗裝室係如第5圖所示般，在下部配置 有水槽4 5，在利用排氣扇4 1來吸引塗裝室前面的霧滴 含有氣流，並在通過霧滴處理室內4 3時，噴射來自噴頭 4 4之水洗淋浴水，使霧滴與水一起落到下部水槽而將之 捕捉，並在將被泵浦（無圖示）所吸引上來的水供給至上 述噴頭4 4的同時，亦供給至使裝設在塗裝室前面之水流 板4 2溢流的集水槽4 6。而在被裝置在水流板與水流板 後部之霧滴處理室4 3內所被捕捉到的塗料，係沈澱在水 槽內而被當做淤渣來分離回收處理。528617 A7 B7 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a paint that attracts, captures, and recycles the sprayed paint in the spray coating, and is scattered without being applied to the coating. The coating room for mist droplets, especially for the use of exhaust fans, attracts paint mist droplets at the same time as it attracts airflow, and uses shower water to capture and process the mist droplets of paint, forming a clean air that is then discharged. Painting room. [Advanced Technology] As shown in Fig. 5, a general water-washing coating room is provided with a water tank 45 in the lower part, and an exhaust fan 41 is used to attract mist droplets in front of the coating room containing airflow and passing through. When the mist droplet processing chamber 4 3, spray the water from the shower head 4 4 to wash the shower water, so that the mist droplets and water fall to the lower sink to capture it, and supply the water that will be attracted by the pump (not shown) At the same time as the above-mentioned spray head 44, it is also supplied to the water collection tank 46 which overflows the water flow plate 42 installed in front of a painting room. The coating material captured in the mist processing chamber 43 disposed behind the water flow plate and the water flow plate is deposited in the water tank and treated as sludge for separation and recovery.
因爲該種塗裝室係利用飛散之塗料的霧滴與水之接觸 來予以捕捉，所以只要接觸機會增加就可提高捕集效率， 及提昇排氣空氣的淸淨化，故可防止大氣污染及環境污染 。而爲了增加霧滴與水的接觸，須採用增加水量，或增加 水的表面積等手段，一般而言，使用利用淋浴水滴最具效 果。此時，水滴的粒子愈細，其表面積就愈大，故同等的 水量即可提高其捕捉效果，但是，如果粒子太細的話，貝[J 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29?公釐） (請先閱讀背面之注意事項再填寫本頁) •秦· 、1' 經濟部智慧財產局員工消費合作社印製 -4 - 528617 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（2 ) 又可能增加與氣流一倂排出的機率，故又會產生環境污染 的問題。 此外，被水滴所捕捉的塗料粒子係與連同淋浴水一起 回流至水槽的水呈分離的狀態相互凝集，成爲淤渣並浮到 水面而被回收。通常，在水槽內均浮游著淤渣，該淤渣的 處理在日常的作業中並非簡單的事，所以爲了讓淤渣的回 收更加簡易，例如可使其集中在水槽的前面般，配置形成 淋浴排水之水流的隔板等。或者，因水流係流向泵浦的吸 水口，故也可在較易處理的吸水口位置設置、配置淤渣的 回收裝置等。 除了捕集淋浴之塗料霧滴外，亦可與一般水洗室中利 用水流板來捕捉之作業倂用。通常，在面向利用塗裝室的 前面設置水流板，再讓利用泵浦使供給至配置在水流板上 部之集水槽的水溢流，而在水流板的全面形成水膜。 而在水流板的下部與水槽內之水面之間，係形成被處 理室所吸引之氣流的吸入口，故可有效地吸引過多的噴霧 霧滴，並在上述處理室予以捕捉。此外，在被噴霧之過多 的噴霧粒子中，直進的塗料粒子係與該水膜相衝突，而與 水一倂落至水槽，而與淋浴水相同地被捕捉。 如上所述之水洗式塗裝室的問題點，就在其淤渣的回 收佔據了日常作業的大部份，故成爲塗裝作業之效率不彰 的原因。此外，還有大量水流的噪音問題。也就是說，流 下水流板，通過吸入口而落至水面的水聲會形成噪音，而 導致作業人員的不適感、或作業環境的不佳等。再者，從 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） I---------襄------訂-------線 (請先閱讀背面之注意事項再填寫本頁) -5- 528617 A7 B7 五、發明説明（3 ) 處理室之水洗淋浴落至水槽內的水聲也會產生同樣的噪音 問題。 $-- (請先閱讀背面之注意事項再填寫本頁) 〔本發明所欲解決之課題〕 本發明就是希望能在儘可能維持水洗塗裝室之基本機 能’也就是霧滴之捕集效果的情形下，而能使所產生之淤 渣不會滯留在塗裝室內，具體而言不會滯留在水槽內，且 能簡易回收、處理，使日常之保養更加簡便。此外，本發 明的課題爲除了防止在作業環境中，因淤渣之滯留所產生 的異臭外，減低因多量的水循環而導致的水流噪音，以期 待獲得一個更安靜之作業環境的良好塗裝室。 爲了提昇上述之霧滴的捕集效率，雖然增加水量是必 須的，但是，水量愈多噪音也相形增大，故如何在不增加 水量的情況下仍能提昇捕集效率就顯得更爲重要了。 〔解決問題之手段〕 經濟部智慧財產局員工消費合作社印製 爲了解決上述課題’本發明即爲一種利用排氣扇所吸 入之氣流，從形成於塗裝室之前面面板下部的吸入口來吸 引的塗料霧滴，再從塗裝室下部的水槽，藉由泵浦將供給 之水洗淋浴水噴射至通過霧滴處理室的霧滴含有氣流，而 來捕捉塗料霧滴的水洗式塗裝室，其特徵爲：在塗裝室的 下部，係配置有前部水槽及後部水槽，並在霧滴處理室內 設有承接水洗淋浴水的集水槽，並在形成從該集水槽導向 前部水槽之導水通路的同時，前部水槽的後緣會較低，並 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -6 - 528617 經濟部智慧財產局員工消費合作社印製 A7 __ B7五、發明説明（4 ) 朝向吸入口連接成緩降的傾斜面，而前部水槽的溢流水係 流經該傾斜面，並藉由形成於傾斜面之低部的排水口而回 流至後部水槽。 也就是說’在處理室中已捕捉了塗料霧滴的水，經過 流入至集水槽的導水通路，而流入前部水槽，因爲其後流 經了從前部水槽的後緣至處理室下部的傾斜面，所以從低 部的排水口至回流到後部的水槽過程中，不會有滯留的情 形發生，甚至還可以較快的速度繼續回流，故在後部水槽 中分離了淤渣後，便可利用泵浦再形成送入處理室的淋浴 水噴頭及前面水流板的溢流集水槽的循環通路。 本發明爲了降低淤渣在循環通路中的滯留，係在前部 水槽的兩側設有導水通路。此外，設於傾斜面之低位部之 一部的集水口、及後部水槽的泵浦吸入口，係以彼此分離 的方式配置，而形成了流路。 〔發明之實施形態〕 兹參照圖面，詳細說明本發明之一實施例如下。 第1圖係爲自塗裝室的側面所視之剖面圖。被配置在 下部的水槽1係被分割成前部水槽1 A及後部水槽1 B。 並在大約中央部的地方設有霧滴處理處3，且在該上都言受 有排氣扇4。在處理室3的前面的上部設有集水槽5，而 在低於該集水槽5的下方，則有水流板6垂下。水流板6 之構成因考慮到其製作與維修的便利性，係具有上部水流 板6 A與下部水流板6 B所構成。 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐1 一' (請先閲讀背面之注意事項再填寫本頁) -裝_ 、11 線 528617 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（5 ) 下部水流板6 B係因打開吸入口 7後，上述排氣扇4 的吸入氣流會被適度的流速所吸引般而形成。而霧滴處理 室3係成爲被排氣扇4所吸入之氣流的通路，且水洗淋浴 水的噴射噴頭8係被設置在其中間部份，並以朝向通過氣 流噴射般地配置著。在實施例中，從垂直方向，也就是塗 裝室的正面來看，在其左右的方向上係並列著複數個噴射 噴頭，使得淋浴水可以噴霧至處理室內的全區域。 此外，噴射方向係被設定爲沿著導引板9朝斜方向噴 射。而2 0則爲一消除器，係爲除去因氣流之流動及被排 氣扇4所吸入之細小水滴所設置的。 在水洗淋浴噴射方向的前端係設有另一個下部集水槽 1 0，其同於上述處理室前面的水流板6 (第1段水流板 )，而被當做第2段水流板，並具有下段主流板1 1。該 下部集水槽1 0係以比前面更容易溢流般構成，在承接上 述淋浴水後，溢流的水會沿著下段水流板1 1而流動。並 且’在下部集水槽1 0的兩側係設有排水通路1 2。該排 水通路1 2如第3，第4圖所示般，係經過設於兩側的導 水通路1 3，而與前部水槽1 A連通。 承裝來自導水通路1 3之淋浴水之一部份的前部水槽 1 A ’係僅有前方的一部份提高，而形成至處理室3之下 部的傾斜面1 4，且被送入水槽內之淋浴排水會溢出，並 流經該傾斜面1 4。傾斜面1 4係爲一緩降之斜面，一直 到下端沒入後部水槽1 B之水中的下段水流板1 1，並在 接近下段水流板1 1時，即自終端的傾斜面1 4的低位側 本紙張尺度適用中國國家標準（CNS ) A4規格（210 x297公釐） 111 —- 1111 n^衣 11 · I 訂 1111III 線 (請先閲讀背面之注意事項再填寫本頁) -8 - 528617 A7 B7 五、發明説明（6 ) 端落入水槽1 B內。 (請先閱讀背面之注意事項再填寫本頁) 在顯示其他實施例的第2圖中，傾斜面1 4的端部係 至下段水流板1 1，如在第3及第4圖中以箭頭來表示之 水流般，係與從下段水流板1 1流下的溢流水，一同沿著 傾斜面1 4的下端部流動，而集中於設在側端的排水口 1 5。排水口 1 5係被設置在傾斜面1 4的一端側，並與 後部水槽1 B相連。 在本實施例中，雖在一端設有排水口 1 5 ’但適宜在 相反側的另一端配置設於後部水槽1 B之泵浦的吸入部 1 6，以防水流淤塞。 但是，水流係朝向設於一端側的集水口流去，故本構 成須讓水流回流至另端側之泵浦的吸入部1 6般，使水流 不會發生淤塞的情況。該水流對於有淤渣浮在水面之水流 極爲重要，故有必要時可以利用隔板來做成流路或集水。 經濟部智慧財產局員工消費合作社印製 在另一實施例中，亦可在兩端均設有排水口，並在後 部水槽的中央部設有泵浦的吸入部。此時，也有可能會須 要在中央部設有防止淤塞的隔板，或調整排水口之流量的 情況發生。 下段水流板1 1之長度方向的寬度，係爲足以覆蓋吸 入口的寬度，也就是塗裝室前面的開口寬度，且下端係以 水流可以到達經過傾斜面而流入之水膜的表面般，沿著水 膜面流動般地被構成。此外，其與上述水流板6之間的間 隔，係以可確保氣流之通過面積般，而被設定在儘可能接 近的位置。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） _9_ 經濟部智慧財產局員工消費合作社印製 528617 A7 __ B7____ 五、發明説明（7 ) 此外，還可藉由取下或開閉任一個水流板，來使內部 的維修更顯容易。在實施例中，下段水流板係以可自由裝 卸般地被掛在溢流管用的下部集水槽，而在被取下時，則 呈從塗裝室側朝後部呈風幡狀般的構造。因此，維修時之 作業就更顯便利。 〔發明之效果〕 本發明依據以上之構成，即可得到下述之效果。 根據本發明，其捕集到之塗料粒子的淤渣係被集中在 後部水槽，故使維修更顯簡易。特別是，因爲後部水槽係 被設置在塗裝室的後部外側，所以可一邊進行塗裝作業一 邊進行淤渣處理、維修等，故對自動塗裝機等而言，仍可 繼續運轉而不會中斷其塗裝作業，所以可提昇其作業性。 再者，因爲下部水流板係利用使用於霧滴捕集用之水 洗淋浴的排水，所以泵浦之揚水量減少，故可節省能源， 進而降低運轉成本。並且，利用將淋浴水送至前面水槽， 而由溢流水在床面所形成之水流，可使在不增加水量的情 況下，讓流入前部水槽內之淤渣，得以較快之流速被送入 後部水槽，所以在塗裝室側的前部水槽就不會有淤渣殘留 了。 根據本發明，有關運轉時所產生之噪音問題，也會因 淋浴水係被內部之集水槽所承接，並沿著水流板形成水膜 後回流至水槽，故形成了安靜之水流，並且因爲削減了全 體水量，所以水流音就變得更小聲了。再者，來自前面水 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） I I 批衣 ^ 訂 . 線 (請先閱讀背面之注意事項再填寫本頁) -10 - 528617 經濟部智慧財產局員工消費合作社印製 A7 ____B7五、發明説明（8 ) 流板的水流，係被吸入氣流所吸引，而在被下部水流板所 吸收之狀態下合流，並流入排水口，所以可減少以往因衝 突所產生的水彈音，故可降低塗裝室全體的噪音。 〔圖面之簡單說明〕 第1圖係顯示本發明之實施例之主要部的剖面圖。 第2圖係顯示本發明之其他實施例之主要部的部份剖 面圖。 第3圖係顯示本發明之其他實施例之下部水槽部份的 平面圖。 第4圖係顯示本發明之其他實施例之下段水流板部份 的立體圖。 第5圖係顯示以往之塗裝用水洗室之一例的剖面構造 圖。 〔符號說明〕 I 水槽（1 A :前部水槽、1 B :後部水槽） 3 霧滴處理室 6 水流板 7 吸入口 8 淋浴水噴頭 10 下部集水槽 II 下段水流板 1 2 排水通路 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 裝· 訂 -線 -11 - 528617 A7 B7 五、發明説明（9 ) 13 導水通路 14 傾斜面 15 排水口 (請先閲讀背面之注意事項再填寫本頁) _裝· 訂 線 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -12-Because this type of coating room is captured by the contact of the sprayed droplets of the paint with water, as long as the chance of contact is increased, the capture efficiency can be improved, and the radon purification of the exhaust air can be improved, thus preventing air pollution and the environment. Pollution. In order to increase the contact between the droplets and water, it is necessary to increase the amount of water or increase the surface area of the water. Generally speaking, the use of shower droplets is the most effective. At this time, the finer the particles of water droplets, the larger the surface area, so the same amount of water can improve its capture effect. However, if the particles are too small, the paper [J This paper size applies Chinese National Standard (CNS) A4 specifications ( 210X29? Mm) (Please read the notes on the back before filling out this page) • Qin · 1 'Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-4-528617 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (2) It is also possible to increase the probability of being discharged together with the airflow, so it will cause environmental pollution problems. In addition, the paint particles trapped by the water droplets and the water returning to the water tank together with the shower water are aggregated with each other in a separated state, become sludge, float on the water surface, and are recovered. Usually, sludge floats in the water tank, and the disposal of the sludge is not easy in daily operations. Therefore, in order to make the recovery of the sludge easier, for example, it can be concentrated in front of the water tank to form a shower. Partitions for drainage water flow. Alternatively, since the water flows to the suction port of the pump, a sludge recovery device or the like can also be installed and arranged at the position of the suction port which is easier to handle. In addition to trapping paint mist droplets in showers, it can also be used in general water washing rooms to capture water droplets. Generally, a water flow plate is installed in front of the painting room, and then a pump is used to overflow the water supplied to a water collecting tank arranged at the upper portion of the water flow plate, thereby forming a water film on the entire surface of the water flow plate. Between the lower part of the water flow plate and the water surface in the water tank, a suction port for the airflow attracted by the processing chamber is formed, so it can effectively attract excessive spray droplets and capture them in the processing chamber. In addition, among the excessively sprayed spray particles, the paint particles that went straight collided with the water film, fell into the sink with the water, and were captured in the same way as the shower water. As described above, the problem of the water-washing coating room is that the sludge recovery occupies most of the daily operations, which causes the inefficiency of the coating operations. In addition, there is a lot of noise from the water flow. In other words, the sound of water flowing down the water flow plate and falling to the water surface through the suction port will cause noise, which will cause discomfort to the operator or poor working environment. Furthermore, from this paper size, the Chinese National Standard (CNS) A4 specification (210X297 mm) is applied. I ---------- Xiang ------ Order ------- line (please first Read the notes on the back and fill in this page) -5- 528617 A7 B7 V. Description of the invention (3) The sound of water falling from the shower in the treatment room into the sink will also cause the same noise problem. $-(Please read the precautions on the back before filling this page) [Problems to be solved by the present invention] The present invention is to maintain the basic function of the water-washing coating room as much as possible ', which is the trapping effect of mist droplets. Under the circumstances, the generated sludge will not stay in the coating room, specifically not in the water tank, and can be easily recovered and treated, making daily maintenance easier. In addition, the object of the present invention is to reduce the noise of water flow caused by a large amount of water circulation, in addition to preventing the foul odor caused by the retention of sludge in the working environment, in order to expect a better coating room for a quieter working environment. . In order to improve the trapping efficiency of the above-mentioned droplets, although increasing the amount of water is necessary, the more the amount of water, the noise will also increase in proportion. Therefore, how to improve the capture efficiency without increasing the amount of water becomes even more important. . [Solutions to Solve Problems] Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. To solve the above-mentioned problem, the present invention is to use the airflow sucked by the exhaust fan to attract the air from the suction port formed in the lower part of the front panel of the painting room. The paint mist droplets are sprayed from the water tank at the lower part of the painting room by a pump, and the shower water is sprayed to the water droplets passing through the mist processing chamber to contain the airflow, so as to capture the paint mist droplets. It is characterized in that the lower part of the painting room is provided with a front water tank and a rear water tank, and a water collection tank for receiving shower water is provided in the mist processing chamber, and a water guide is formed from the water collection tank to the front water tank. At the same time of the passage, the rear edge of the front sink will be lower, and this paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -6-528617 Printed by A7 __ B7 of the Intellectual Property Bureau of the Ministry of Economic Affairs 4. Description of the invention (4) The inclined surface is gradually lowered toward the suction port, and the overflow water of the front sink flows through the inclined surface and passes through the drain formed at the lower part of the inclined surface. It flows back to the rear sink. In other words, the water of the paint mist droplets has been captured in the processing chamber, and then flows into the front water tank through the water channel of the water collecting tank, because it then flows through the slope from the rear edge of the front water tank to the lower part of the processing chamber. Surface, so from the lower drain to the back to the sink in the process, there will not be a situation of retention, and even can continue to return at a faster speed, so after the sludge is separated in the rear sink, you can use The pump then forms the circulation path of the shower water nozzle and the overflow water collecting tank of the front water flow plate which are sent into the processing chamber. In order to reduce the retention of the sludge in the circulation path, the present invention is provided with water-conducting paths on both sides of the front water tank. In addition, a water collecting port provided at a part of the lower portion of the inclined surface and a pump suction port of the rear tank are disposed separately from each other to form a flow path. [Embodiment of Invention] An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view seen from the side of the painting room. The water tank 1 arranged in the lower part is divided into a front water tank 1 A and a rear water tank 1 B. A mist processing section 3 is provided at a position about the center, and an exhaust fan 4 is received there. A water collecting tank 5 is provided in the upper part of the front face of the processing chamber 3, and a water flow plate 6 is suspended downwardly below the water collecting tank 5. The structure of the water flow plate 6 is composed of an upper water flow plate 6 A and a lower water flow plate 6 B in consideration of the convenience of production and maintenance. This paper size applies to China National Standard (CNS) A4 specifications (210X297 mm 1 1 '(please read the precautions on the back before filling out this page)-Packing _, 11 Line 528617 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (5) The lower water flow plate 6 B is formed because the suction air flow of the exhaust fan 4 is attracted by a moderate flow rate after the suction port 7 is opened. The droplet processing chamber 3 series is The airflow path sucked by the exhaust fan 4, and the shower head 8 for washing and showering water is arranged in the middle portion and is arranged so as to spray through the airflow. In the embodiment, from the vertical direction, that is, When viewed from the front of the coating room, a plurality of spray nozzles are arranged side by side in the left and right directions, so that shower water can be sprayed to the entire area of the processing room. In addition, the spray direction is set to be inclined along the guide plate 9 It is a eliminator, and 20 is a eliminator, which is set to remove the small water droplets drawn by the airflow and sucked by the exhaust fan 4. At the front end of the spray direction of the washing shower, there is another lower water collecting tank 1 0, which is the same as the water flow plate 6 (the first flow plate) in the front of the processing chamber, and is regarded as the second flow plate, and has the lower main flow plate 11. The lower water collecting tank 10 is easier than the front. It has an overflow structure. After receiving the shower water, the overflowing water flows along the lower flow plate 11. 'Drainage channels 12 are provided on both sides of the lower water collecting tank 10. This drainage channel 1 2 As shown in Figures 3 and 4, it is connected to the front sink 1 A through the water-conducting channels 1 3 provided on both sides. The front part that receives a part of the shower water from the water-conducting channels 13 The water tank 1 A 'is raised only by a part of the front, and the inclined surface 14 formed to the lower part of the processing chamber 3, and the shower drainage sent into the water tank will overflow and flow through the inclined surface 14. Incline Surface 1 4 is a sloping slope that descends to the lower flow plate 11 in the lower end submerged into the water in the rear tank 1 B, and when approaching the lower flow plate 11, the lower side of the inclined surface 14 from the terminal This paper size applies to China National Standard (CNS) A4 (210 x 297 mm) 111 —- 1111 n ^ 11 11 Line 11III (please read the precautions on the back before filling this page) -8-528617 A7 B7 V. Description of the invention (6) The end falls into the sink 1 B. (Please read the precautions on the back before filling this page) at In the second figure showing another embodiment, the end of the inclined surface 14 is connected to the lower flow plate 11 as shown by the arrows in the third and fourth figures. The overflowing overflow water flows along the lower end of the inclined surface 14 together, and is concentrated on the drainage port 15 provided on the side end. The drainage port 15 is provided on one end side of the inclined surface 14 and communicates with the rear sink 1 B is connected. In this embodiment, although a drain port 15 'is provided at one end, it is suitable to arrange a pump suction portion 16 provided at a rear water tank 1B at the other end on the opposite side to block water flow. However, since the water flows toward the water collecting port provided on one end side, the structure is required to return the water flow to the pump suction portion 16 on the other end side so that the water flow does not become clogged. This water flow is extremely important for the water flow with sludge floating on the water surface, so if necessary, a partition can be used to make a flow path or collect water. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In another embodiment, a drainage port may be provided at both ends, and a pump suction section may be provided at the central part of the rear sink. At this time, it may be necessary to provide a blocking prevention partition in the center or adjust the flow rate of the drain. The width of the lower flow plate 11 in the longitudinal direction is sufficient to cover the suction inlet, that is, the width of the opening in front of the painting room, and the lower end is like the surface of the water film flowing in through the inclined surface with water flow. The water-impinging surface is constructed so as to flow. In addition, the distance between the water flow plate 6 and the water flow plate 6 is set to be as close as possible to ensure the passage area of the air flow. This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) _9_ Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 528617 A7 __ B7____ 5. Description of the invention (7) In addition, it can also be removed or opened and closed Any water flow plate to make internal maintenance easier. In the embodiment, the lower flow plate is detachably hung on the lower water collecting tank for the overflow pipe, and when removed, it has a wind-like structure from the painting room side to the rear. Therefore, the operation during maintenance is more convenient. [Effects of the Invention] According to the present invention, the following effects can be obtained by the present invention. According to the present invention, the sludge of the paint particles captured by it is concentrated in the rear water tank, so that maintenance is made easier. In particular, since the rear water tank is installed outside the rear part of the painting room, sludge treatment, maintenance, etc. can be performed while the painting operation is being performed. Therefore, the automatic coating machine and the like can continue to operate without Interrupting the painting operation can improve workability. In addition, because the lower flow plate uses the water used for mist collection to wash the shower water, the amount of pumping water is reduced, so energy can be saved, and the operating cost can be reduced. In addition, the shower water is sent to the front sink, and the water flow formed by the overflow water on the bed surface allows the sludge flowing into the front sink to be sent at a faster flow rate without increasing the amount of water. Into the rear sink, so there is no residue left in the front sink on the painting room side. According to the present invention, the problem of noise generated during operation is also taken care of by the internal water collection tank due to the shower water system, and a water film is formed along the water flow board and then returned to the water tank, so a quiet water flow is formed, and because of the reduction With the total amount of water, the sound of the water flow becomes even quieter. In addition, the paper size from the front applies Chinese National Standard (CNS) A4 (210X 297 mm) II. Approved. Thread (please read the precautions on the back before filling this page) -10-528617 Ministry of Economic Affairs Printed by the Intellectual Property Bureau employee consumer cooperative A7 ____B7 V. Description of the invention (8) The water flow of the flow plate is attracted by the suction air flow, but merges under the condition of being absorbed by the lower flow plate, and flows into the drain, so it can reduce The sound of water pops caused by conflict in the past can reduce the noise of the entire painting room. [Brief Description of Drawings] FIG. 1 is a cross-sectional view showing a main part of an embodiment of the present invention. Fig. 2 is a partial sectional view showing a main part of another embodiment of the present invention. Fig. 3 is a plan view showing a lower water tank portion according to another embodiment of the present invention. Fig. 4 is a perspective view showing a lower flow plate portion of another embodiment of the present invention. Fig. 5 is a cross-sectional structure view showing an example of a conventional painting water-washing room. [Description of Symbols] I Water tank (1 A: front water tank, 1 B: rear water tank) 3 mist processing chamber 6 water flow plate 7 suction port 8 shower head 10 lower water collecting tank II lower flow plate 1 2 drainage channel paper size Applicable to Chinese National Standard (CNS) A4 specification (210X297mm) (Please read the precautions on the back before filling out this page) Binding · Binding -11-528617 A7 B7 V. Description of the invention (9) 13 Water channel 14 Tilt Face 15 Drain (please read the precautions on the back before filling this page) _Packing · Threading Printed by the Intellectual Property Bureau Employees Consumer Cooperatives of the Ministry of Economics This paper is printed in accordance with Chinese National Standard (CNS) A4 (210X297 mm) 12-