Coating water tank with good filtering effect
By introducing a double-layer water film structure into the coating water tank, the first water film resists paint waste residue and the second water film filters paint waste residue, thus solving the problem of poor filtration effect of the coating water tank and achieving more efficient exhaust gas purification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG CHUANYAN COATING EQUIP CO LTD
- Filing Date
- 2025-03-13
- Publication Date
- 2026-04-17
AI Technical Summary
Existing paint spraying water tanks are prone to leakage during negative pressure exhaust when filtering paint spraying exhaust gases, resulting in poor filtration performance.
The system employs a double-layer water film structure, which includes a water guide plate between the front spraying chamber and the rear exhaust chamber to form a first water film and a second water film. The first water film blocks paint residue during spraying exhaust gas, while the second water film contacts and filters the paint residue under negative pressure suction. The two water films also converge to form a reinforced water film to enhance the filtration effect.
It improves the filtration effect of spraying exhaust gas, reduces leakage, and achieves better exhaust gas purification effect.
Smart Images
Figure CN224127612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating exhaust gas filtration technology, and in particular to a coating water tank with good filtration effect. Background Technology
[0002] A painting water tank, also known as a paint spraying water curtain tank, is a device that uses water as a filter medium to filter the exhaust gas (paint mist) generated during the painting process through a water curtain. It is mainly used in paint shops across various industries to reduce environmental pollution, purify the working environment, and protect the health of operators.
[0003] Current coating water tanks, when forming a water film for filtration, are prone to leakage in the air path during negative pressure exhaust because there is only one water film at the front spraying position, resulting in poor filtration effect on the spraying exhaust gas. Utility Model Content
[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating water tank with good filtration effect, comprising a cabinet body, a baffle plate on the cabinet body, the baffle plate dividing the internal space of the cabinet into a front spraying chamber and a rear exhaust chamber; the bottom of the front spraying chamber is connected to the bottom of the rear exhaust chamber, and the top of the rear exhaust chamber is provided with an exhaust device for evacuating air from the rear exhaust chamber or an exhaust port that cooperates with an external exhaust device; a first water film generating device is provided in the front spraying chamber; the first water film generating device includes a first water film generating component that generates a water film at a high position on the front side of the baffle plate, the first water film generating component... The first water film generated flows downward from a high position on the front side of the baffle to a low position on the front side of the baffle; the first water film generating device also includes a second water film generating component that generates water film on the front end of the bottom wall of the front spraying chamber, and the second water film generated by the second water film generating component flows backward from the front end of the bottom wall to the rear end of the bottom wall; a water guide plate is connected to the bottom of the baffle, and the water guide plate is configured to guide the first water film generated by the first water film generating component in the direction of converging with the second water film; the connecting channel between the front spraying chamber and the rear exhaust chamber passes through the bottom of the water guide plate and the rear end of the bottom wall.
[0006] As a further embodiment of this utility model: the second water film flows on the bottom wall to form a water film front end corresponding to the front end of the bottom wall and a water film rear end corresponding to the rear end of the bottom wall; the water guide plate is configured to guide the first water film toward the direction of converging with the water film rear end of the second water film.
[0007] As a further embodiment of this utility model: the bottom of the water guide plate is located above the rear end of the bottom wall.
[0008] As a further embodiment of this utility model: the bottom of the water guide plate is set vertically downward, tilted forward, or tilted backward; when it is tilted forward or tilted backward, the virtual tilted extension of the bottom of the water guide plate intersects with the rear end of the bottom wall.
[0009] As a further embodiment of this utility model, the bottom wall is inclined downwards from front to back.
[0010] As a further embodiment of this utility model: the angle formed by the water guiding direction at the bottom of the water guide plate and the inclined direction of the bottom wall is an acute angle.
[0011] As a further embodiment of this utility model: a second water film generating device is provided in the rear exhaust chamber. The second water film generating device includes a spray head disposed in the rear exhaust chamber for spraying, and also includes a water supply component for supplying water to the spray head, or the water inlet of the spray head is connected to an external water supply component; the spray head sprays water toward the side wall of the rear exhaust chamber, forming a first spray water film from the spray head to the side wall of the rear exhaust chamber, and forming a second spray water film flowing downward from the side wall of the rear exhaust chamber.
[0012] As a further embodiment of this utility model: the spray head sprays water at least toward the baffle that forms the front side wall of the rear exhaust chamber; the water guide plate guides the second spray water film on the rear side of the baffle.
[0013] As a further embodiment of this utility model: a wastewater collection chamber is also provided on the cabinet, the wastewater collection chamber has a wastewater collection port connected to the connecting channel; a drain outlet is provided on the wastewater collection chamber, and a filter plate is provided, the wastewater in the wastewater collection chamber is filtered by the filter plate and discharged from the drain outlet.
[0014] As a further embodiment of this utility model: a wastewater circulation device is provided on the cabinet, which is used to circulate the water discharged from the drain outlet to the first water film generating device and / or the second water film generating device.
[0015] Compared with the prior art, the beneficial effects of this technical solution are as follows: the first water film can be used to block the spraying exhaust gas when spraying from front to back at the spraying exhaust gas collection window, thereby contacting and capturing the paint waste in the spraying exhaust gas;
[0016] The second water film can be used to contact the paint residue in the spraying exhaust gas under the action of gravity or negative pressure suction, thereby forming a capture and filtration.
[0017] As the spraying exhaust gas flows from the front spraying chamber to the rear exhaust chamber through the connecting channel, it passes through the enhanced water film formed by the convergence of the first and second water films. This enhances the filtration of the spraying exhaust gas, making it less prone to leakage and resulting in a better filtration effect.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is an internal schematic diagram of the present invention;
[0022] Figure 3 yes Figure 2 Enlarged schematic diagram of a local structure at point A;
[0023] Figure 4 yes Figure 2 Enlarged schematic diagram of the local structure at point B;
[0024] Figure 5 yes Figure 2 Enlarged schematic diagram of the local structure at point C.
[0025] The corresponding labels in the attached diagram are explained as follows:
[0026] Cabinet-1,
[0027] Baffle-2,
[0028] Front spray booth-3, spray exhaust gas collection window-301, bottom wall-302
[0029] Rear exhaust chamber-4, air extraction port-401,
[0030] Air extraction device-5,
[0031] First water film generating component-6, first water film-601, first overflow frame-602.
[0032] Second water film generating component-7, second water film-701, water film front end-7011, water film rear end-7012, second overflow frame-702.
[0033] Water guide plate-8,
[0034] Connecting channel -9,
[0035] Spray head-10, first spray water film-1001, second spray water film-1002
[0036] Wastewater collection room-11, drain outlet-1101,
[0037] Filter plate-12,
[0038] Wastewater recycling device-13. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] Please see Figure 1-5 A coating water tank with good filtration effect includes a cabinet body 1, and a baffle 2 is provided on the cabinet body 1. The baffle 2 divides the internal space of the cabinet into a front spraying chamber 3 and a rear exhaust chamber 4.
[0041] like Figure 2 As shown, the baffle 2 is arranged vertically. The front side of the baffle 2 corresponds to or forms part of the rear side wall of the front spray chamber 3, and the rear side of the baffle 2 corresponds to or forms part of the front side wall of the rear exhaust chamber 4.
[0042] The bottom of the front spraying chamber 3 is connected to the bottom of the rear exhaust chamber 4. The top of the rear exhaust chamber 4 is provided with an air extraction device 5 for extracting air from the rear exhaust chamber 4 or an air extraction port 401 that cooperates with an external air extraction device.
[0043] like Figure 1 , 2 As shown, the front spraying chamber 3 has a spraying exhaust gas collection window 301 on its front side. When the exhaust device 5 is used to extract the gas, a negative pressure gas flow path is formed from the front spraying chamber 3 to the rear exhaust chamber 4, and then from the rear exhaust chamber 4 to the outside of the exhaust port 401.
[0044] In this embodiment, a first water film generating device is provided in the front spraying chamber 3.
[0045] The first water film generating device includes a first water film generating component 6 that generates a water film at a high position on the front side of the baffle 2. The first water film 601 generated by the first water film generating component 6 flows down from the high position on the front side of the baffle 2 to the low position on the front side of the baffle 2.
[0046] The first water film 601 can be used to block the spraying exhaust gas when spraying from front to back at the spraying exhaust gas collection window 301, thereby contacting and capturing the paint residue in the spraying exhaust gas.
[0047] The first water film generating device also includes a second water film generating component 7 that generates a water film on the front end of the bottom wall 302 of the front spraying chamber. The second water film 701 generated by the second water film generating component 7 flows from the front end of the bottom wall 302 to the rear end of the bottom wall 302.
[0048] The second water film 701 can be used to contact paint residue in the spraying exhaust gas under the action of gravity or negative pressure suction, thereby forming a capture and filtration.
[0049] The second water film 701 flows on the bottom wall 302 to form a water film front end 7011 corresponding to the front end of the bottom wall 302, and a water film rear end 7012 corresponding to the rear end of the bottom wall 302.
[0050] The bottom of the baffle 2 is connected to a water guide plate 8, which guides the first water film 601 generated by the first water film generating component toward the direction where it intersects with the second water film 701.
[0051] In some embodiments, the water guide plate 8 is configured to guide the first water film 601 toward the water film rear end 7012 of the second water film.
[0052] In some embodiments, the bottom wall 302 is arranged to slope downward from front to back, such that the second water film 701 generated by the second water film generating assembly 7 at the front end of the bottom wall 302 flows backward and downward along the slope direction of the bottom wall 302.
[0053] In some embodiments, the bottom of the water guide plate 8 is located above the rear end of the bottom wall 302, so that the first water film 601 falling from the bottom of the water guide plate 8 can meet the rear end 7012 of the second water film.
[0054] In some embodiments, the angle formed by the water guiding direction at the bottom of the water guide plate 8 and the inclined direction of the bottom wall 302 is an acute angle, so as to reduce the impact splashing generated when the first water film 601 and the second water film 701 meet.
[0055] In some embodiments, the bottom of the water guide plate 8 is arranged vertically downward, tilted forward, or tilted backward.
[0056] When the water guide plate 8 is tilted forward or backward, the virtual tilted extension at the bottom (i.e., the virtual extension formed along the tilting direction of the bottom of the water guide plate) intersects with the rear end of the bottom wall 302 to ensure that the first water film 601 and the second water film 701 can meet.
[0057] In some embodiments, the communication channel 9 between the front spray chamber 3 and the rear exhaust chamber 4 is configured to pass between the bottom of the water guide plate 8 and the rear end of the bottom wall 302.
[0058] As the spraying exhaust gas flows from the front spraying chamber 3 to the rear exhaust chamber 4 through the connecting channel 9, it passes through the enhanced water film formed by the convergence of the first water film 601 and the second water film 701. This enhances the filtration of the spraying exhaust gas, making it less prone to leakage and resulting in a better filtration effect.
[0059] In some embodiments, the first water film generating component 6 includes a first overflow frame 602 mounted at a high position on the baffle 2. The first overflow frame 602 is provided with a water supply component or receives water supplied by an external water supply component. The first overflow frame 602 is configured to overflow water toward the front side of the baffle 2 so that the water flows downward from the front side of the baffle 2 to form a first water film 601.
[0060] In some embodiments, the second water film generating assembly 7 includes a second overflow frame 702 installed at the front end of the bottom wall 302. The second overflow frame 702 is provided with a water supply assembly or receives water supplied by an external water supply assembly. The second overflow frame 702 is configured to overflow water toward the front end of the bottom wall 302 so that water flows backward from the front end of the bottom wall 302 to form a second water film 701.
[0061] In this embodiment, a second water film generating device is provided in the rear exhaust chamber 4. The second water film generating device includes a spray head 10 disposed in the rear exhaust chamber 4 for spraying, and the second water film generating device also includes a water supply component for supplying water to the spray head 10, or the water inlet of the spray head is connected to an external water supply component.
[0062] The spray head 10 sprays water toward the side wall of the rear exhaust chamber 4, forming a first spray water film 1001 from the spray head 10 to the side wall of the rear exhaust chamber 4, and a second spray water film 1002 flowing downward from the side wall of the rear exhaust chamber 4.
[0063] In some embodiments, the spray head 10 sprays at least toward the baffle 2 that forms the front sidewall of the rear exhaust chamber.
[0064] Preferably, the water guide plate 8 is configured to guide the second spray water film 1002 on the rear side of the baffle, so that the second spray water film 1002 on the rear side of the baffle can also converge with the second water film 701. On the one hand, the second water film generating device can generate the first spray water film 1001 for spraying and filtering the gas when it passes through the rear exhaust chamber 4. On the other hand, it also uses the same water body to generate the second spray water film 1002 for capturing gas collisions on the side wall, and combines with the first water film 601 to form a multi-channel filtration setting, so that the filtration effect of this coating water tank on the spray exhaust gas is better.
[0065] In this embodiment, a wastewater collection chamber 11 is also provided on the cabinet 1. The wastewater collection chamber 11 has a wastewater collection port that is connected to the connecting channel 9. After the first water film 601 and the second water film 701 converge, the water can flow to the wastewater collection chamber 11 through the wastewater collection port. After the second spray water film 1002 and the second water film 701 converge, the water can flow to the wastewater collection chamber 11 through the wastewater collection port.
[0066] Wastewater collection chamber 11 is provided with a drain outlet 1101 and a filter plate 12. Wastewater in wastewater collection chamber 11 is filtered by filter plate 12 and discharged from drain outlet 1101.
[0067] In some embodiments, a wastewater circulation device 13 is provided on the cabinet 1. The wastewater circulation device 13 is used to circulate the water discharged from the drain outlet 1101 to the water supply components, making water use more environmentally friendly.
[0068] In some embodiments, the wastewater recycling device 13 includes a water pump and a corresponding piping assembly.
[0069] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A coating water tank with good filtration effect, comprising a cabinet body, a baffle plate provided on the cabinet body, the baffle plate dividing the internal space of the cabinet into a front spraying chamber and a rear exhaust chamber; the bottom of the front spraying chamber is connected to the bottom of the rear exhaust chamber, and the top of the rear exhaust chamber is provided with an exhaust device for extracting air from the rear exhaust chamber or an exhaust port that cooperates with an external exhaust device; characterized in that, The front spraying chamber is equipped with a first water film generating device; The first water film generating device includes a first water film generating assembly that generates a water film at a high position on the front side of the baffle. The first water film generated by the first water film generating assembly flows down from the high position on the front side of the baffle to the low position on the front side of the baffle. The first water film generating device also includes a second water film generating component that generates a water film on the front end of the bottom wall of the front spraying chamber, wherein the second water film generated by the second water film generating component flows from the front end of the bottom wall to the rear end of the bottom wall. A water guide plate is connected to the bottom of the baffle. The water guide plate guides the first water film generated by the first water film generating component in the direction of its intersection with the second water film. The connecting channel between the front spraying chamber and the rear exhaust chamber passes between the bottom of the water guide plate and the rear end of the bottom wall.
2. The coated water tank according to claim 1, characterized in that The second water film flows on the bottom wall to form a water film front end corresponding to the front end of the bottom wall, and a water film rear end corresponding to the rear end of the bottom wall. The water guide plate guides the first water film toward the direction where it intersects with the rear end of the second water film.
3. The coated water tank according to claim 2, characterized in that The bottom of the water guide plate is located above the rear end of the bottom wall.
4. The coated water tank according to claim 3, characterized in that The bottom of the water guide plate can be set vertically downward, tilted forward, or tilted backward. When tilted forward or backward, the virtual tilted extension at the bottom of the water guide plate intersects with the rear end of the bottom wall.
5. The coated water tank according to any one of claims 1 to 4, characterized in that The bottom wall is sloped downwards from front to back.
6. The coated water tank according to claim 5, characterized in that The angle formed by the water guiding direction at the bottom of the water guide plate and the inclined direction of the bottom wall is an acute angle.
7. The coating water tank according to claim 1, 2, 3, 4, or 6, characterized in that, A second water film generating device is installed in the rear exhaust chamber; The second water film generating device includes a spray head installed in the rear exhaust chamber for spraying, and the second water film generating device also includes a water supply component for supplying water to the spray head or the water inlet of the spray head is connected to an external water supply component. The spray head sprays water toward the side wall of the rear exhaust chamber, forming a first spray water film from the spray head to the side wall of the rear exhaust chamber, and a second spray water film flowing downward from the side wall of the rear exhaust chamber.
8. The coated water tank according to claim 7, characterized in that The spray nozzles spray at least toward the baffles that form the front sidewall of the rear exhaust chamber; The water guide plate is configured to guide the second spray water film on the rear side of the baffle.
9. The coated water tank according to claim 1 or 2 or 3 or 4 or 6 or 8, characterized in that, The cabinet is also equipped with a wastewater collection chamber, which has a wastewater collection port connected to the connecting channel; The wastewater collection chamber is equipped with a drain outlet and a filter plate. The wastewater in the wastewater collection chamber is filtered by the filter plate and then discharged from the drain outlet.
10. The coated water tank according to claim 9, characterized in that The cabinet is equipped with a wastewater circulation device, which is used to circulate the water discharged from the drain outlet to the first water film generating device and / or the second water film generating device.