Oil drenching spray booth

Abstract

The utility model provides a kind of oil drenching spraying cabinet, it includes exhaust mechanism, oil curtain plate structure, outer cover, exhaust fan, bottom shell and oil pump.Exhaust mechanism includes exhaust casing and the vapor-liquid separation component being arranged in exhaust casing, the top of exhaust casing is provided with exhaust port, bottom is provided with suction port, exhaust fan is connected at exhaust port, outer cover is located in the side of exhaust casing, the inner chamber of outer cover and suction port are communicated, and oil curtain plate structure is located in outer cover.Vapor-liquid separation component includes middle vapor-liquid separation baffle, and two front end vapor-liquid separation baffles and two rear end vapor-liquid separation baffles located in the both sides of middle vapor-liquid separation baffle, mixed gas entering from suction port is rushed to middle vapor-liquid separation baffle after being guided by two front end vapor-liquid separation baffles, then flows along different path in the both sides of middle vapor-liquid separation baffle, so that the mixed condensation efficiency of mixed gas is higher, and the removal effect of spraying mist is better.

Description

Technical Field

[0001] This utility model relates to the field of oil curtain plate structure, and particularly to an oil spraying cabinet. Background Technology

[0002] In industrial production, such as automobile manufacturing, furniture production, and metal product processing, spraying is a crucial surface treatment process. However, the spraying process generates a large amount of overspray mist, which consists of paint particles and volatile substances that do not adhere to the work surface. If this mist is not effectively collected and treated, it can seriously pollute the workshop environment, endanger the health of operators, and pose fire and explosion hazards.

[0003] To address the aforementioned issues, some factories in the industry use oil spray booths as equipment to collect and treat paint mist. The working principle is as follows: under the negative pressure generated by the fan, air containing paint mist is drawn into the booth, first contacting the circulating oil curtain on the front of the booth, where some of the paint mist is captured. Subsequently, the air and the uncaptured paint mist enter the air-water mixing chamber of the exhaust mechanism, where the paint mist is transferred to the medium oil through collision, adsorption, and condensation of oil and paint mist particles. However, existing oil spray booths suffer from insufficient efficiency in mixing and condensing oil and paint mist particles, resulting in inadequate removal of paint mist.

[0004] Therefore, it is necessary to provide an oil spraying booth to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides an oil spray booth to solve the problems of insufficient efficiency in mixing and agglomerating paint mist particles and inadequate removal of spray mist in existing oil spray booths.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: an oil spraying cabinet, which includes: an exhaust mechanism, an oil curtain structure, an outer cover, an exhaust fan, a bottom shell, and an oil pump; The exhaust mechanism and the outer cover are disposed on the top of the bottom shell. The exhaust mechanism includes an exhaust housing and a gas-liquid separation component disposed within the exhaust housing. The top of the exhaust housing is provided with an exhaust port and the bottom is provided with an intake port. The exhaust fan is connected to the exhaust port. The outer cover is located on one side of the exhaust housing. The inner cavity of the outer cover is connected to the intake port. The oil curtain structure is located within the outer cover. The oil curtain structure and the oil curtain formed therein cover the intake port. The vapor-liquid separation assembly includes a central vapor-liquid separation baffle, two front-end vapor-liquid separation baffles, and two rear-end vapor-liquid separation baffles. The two front-end vapor-liquid separation baffles are located on the side of the central vapor-liquid separation baffle closer to the intake port, and the two rear-end vapor-liquid separation baffles are located on the side of the central vapor-liquid separation baffle closer to the exhaust port. The gaps between the central vapor-liquid separation baffle and the two front-end vapor-liquid separation baffles are opposite, and the width of the central vapor-liquid separation baffle is greater than the gap between the two front-end vapor-liquid separation baffles. An oil storage tank is provided inside the bottom shell. The oil curtain plate structure includes an overflow groove and an oil curtain plate connected to one side of the overflow groove. The oil pump is located outside the bottom shell. The input end of the oil pump is connected to the inner cavity of the oil storage tank through an input pipe. The first output end of the oil pump is connected to the inner cavity of the overflow groove through a first output pipe.

[0007] In this utility model, the front gas-liquid separation baffle includes a first separation plate and a second separation plate. The first separation plate is horizontally arranged, and the second separation plate extends obliquely towards the direction of the middle gas-liquid separation baffle. The two second separation plates of the two front gas-liquid separation baffles are located between the two first separation plates, and the distance between the ends of the two second separation plates away from the first separation plate is smaller.

[0008] The central vapor-liquid separation baffle includes a third separation plate and a fourth separation plate. The fourth separation plate is provided on both sides of the third separation plate. The third separation plate is parallel to the first separation plate. The fourth separation plate extends obliquely towards the direction of the front vapor-liquid separation baffle. The gap between the third separation plate and the two second separation plates is opposite. The width of the third separation plate is greater than the minimum distance between the two second separation plates.

[0009] Furthermore, the ends of the two rear vapor-liquid separation baffles that are close to each other extend at an angle toward the direction of the middle vapor-liquid separation baffle.

[0010] In this utility model, the middle vapor-liquid separation baffle, the front vapor-liquid separation baffle, and the rear vapor-liquid separation baffle are all provided with enclosing side plates on their periphery. The enclosing side plates enclose the middle vapor-liquid separation baffle, the front vapor-liquid separation baffle, and the rear vapor-liquid separation baffle to form an enclosing groove on the side of the rear vapor-liquid separation baffle that is close to the air intake. The middle vapor-liquid separation baffle, the front vapor-liquid separation baffle, and the rear vapor-liquid separation baffle are provided with protruding strips on the side near the air intake.

[0011] In this invention, a filter screen is provided between the rear gas-liquid separation baffle and the exhaust port.

[0012] In this utility model, a raised step is provided inside the bottom shell at the position of the outer cover. The top surface of the raised step is inclined, and the end of the top surface of the raised step closer to the oil storage tank is lower. The top surface of the raised step is connected to the oil storage tank. The second output end of the oil pump is connected to the second output pipe. The second output pipe extends and is provided at the higher end of the top surface of the raised step. A plurality of second output holes for spraying oil onto the top surface of the raised step are provided on the periphery of the second output pipe.

[0013] In this utility model, the oil curtain plate includes an inner oil curtain plate and an outer oil curtain plate, and the overflow groove includes a first overflow groove and a second overflow groove. The first overflow groove is located at the top of one side of the inner oil curtain plate. A first output side plate is provided on one side of the first overflow groove. The top height of the first output side plate is lower than the top height of the other side plates of the first overflow groove. The inner oil curtain plate is connected to the outside of the first output side plate so that the medium oil in the first overflow groove can flow downward along the inner oil curtain plate. The second overflow groove is located at the top of one side of the outer oil curtain plate. A second output side plate is provided on one side of the second overflow groove. The top height of the second output side plate is lower than the top height of the other side plates of the second overflow groove. The outer oil curtain plate is inclinedly connected to the outside of the second output side plate so that the medium oil in the second overflow groove can flow downward along the outer oil curtain plate. The outer oil curtain panel includes multiple first panels and multiple second panels, with the first panels and second panels having different degrees of inclination, and the multiple first panels and multiple second panels are arranged alternately.

[0014] The first plate is located outside the second plate. The first plate includes a middle plate and side plates located on both sides of the middle plate. The middle plate and the side plates are connected by a bent structure, so that the outer surface of the first plate forms a convex surface.

[0015] In addition, along the downward direction of the second overflow groove, the width of the middle plate gradually decreases, the width of the side plate gradually increases, the gap between the second plate and the adjacent first plate is opposite, and the width of the second plate is greater than the interval between the adjacent first plates.

[0016] Furthermore, a vortex plate is provided at the air intake, and the concave side of the vortex plate is connected to the bottom end of the inner oil curtain plate. The bottom end of the inner oil curtain plate is bent and extended to the inner side of the vortex plate, so that the medium oil guided by the inner oil curtain plate generates vortex flow in the vortex plate. The bottom end of the exhaust housing is provided with a base plate, which extends inclined towards the bottom housing. The lower end of the base plate is connected to the vortex plate. The third output end of the oil pump is connected to the third output pipe, which extends to the higher end of the base plate. The periphery of the third output pipe is provided with a plurality of third output holes for spraying oil onto the base plate.

[0017] Compared with the prior art, the advantages of this utility model are as follows: The oil spraying booth of this utility model, by placing a central vapor-liquid separation baffle between two front vapor-liquid separation baffles and two rear vapor-liquid separation baffles, allows the mixed gas entering from the intake port to flow towards the central vapor-liquid separation baffle after being guided by the two front vapor-liquid separation baffles. Then, it flows along different paths on both sides of the central vapor-liquid separation baffle, resulting in a convergence, divergence, and reconvergence process. This leads to higher mixing and condensation efficiency of the mixed gas and better removal of spray mist. In addition, the oil curtain structure inside the oil spray booth, by setting an inner oil curtain and an outer oil curtain, and the outer oil curtain including an alternating first plate and a second plate, can increase the area of ​​the oil curtain, thereby improving the removal efficiency of spray mist and achieving a better removal effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0019] Figure 1 This is a schematic diagram of a preferred embodiment of the oil spraying booth of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the oil spraying booth of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the exhaust mechanism in this utility model.

[0022] Figure 4 This is a schematic diagram of the oil curtain panel structure in this utility model.

[0023] Figure 5 This is a schematic diagram of the oil curtain panel structure from another perspective.

[0024] Figure 6 for Figure 5 Enlarged view of the local structure at point A in the middle. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.

[0027] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, a connection can be a detachable connection or a connection of an integral structure; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Existing oil spray booths have problems such as insufficient efficiency in mixing and agglomerating oil droplets and paint mist particles, and inadequate removal of spray mist.

[0030] The following is a preferred embodiment of an oil spraying booth provided by this utility model that can solve the above technical problems.

[0031] Please refer to Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of a preferred embodiment of the oil spraying booth of this utility model. Figure 2 This is a schematic diagram of the internal structure of the oil spraying booth of this utility model.

[0032] In the diagram, units with similar structures are represented by the same labels.

[0033] This embodiment provides an oil spraying cabinet, which includes: an exhaust mechanism 12, an oil curtain structure 11, an outer cover, an exhaust fan 13, a bottom shell 16, and an oil pump 14.

[0034] The exhaust mechanism 12 and the outer casing 13 are located on the top of the bottom shell 16. The exhaust mechanism 12 includes an exhaust housing 31 and a gas-liquid separation assembly disposed within the exhaust housing 31. The exhaust housing 31 has an exhaust port 311 at the top and an intake port at the bottom. Figure 2 The air intake is located at the volute plate 15. The exhaust fan is connected to the exhaust port 311. The outer cover 13 is located on one side of the exhaust housing 31, and the inner cavity of the outer cover 13 is connected to the air intake. The oil curtain structure 11 is located inside the outer cover 13, and the oil curtain structure 11 and the oil curtain it forms cover the air intake. This ensures that when the exhaust mechanism 12 draws air through the air intake, the sprayed mist will pass through the oil curtain, resulting in a better removal effect on the sprayed mist.

[0035] Please refer to Figure 2 and Figure 3 The vapor-liquid separation assembly in this embodiment includes a middle vapor-liquid separation baffle 33, two front vapor-liquid separation baffles 32, and two rear vapor-liquid separation baffles 34.

[0036] Two front-end vapor-liquid separation baffles 32 are located on the side of the middle vapor-liquid separation baffle 33 near the intake port, and two rear-end vapor-liquid separation baffles 34 are located on the side of the middle vapor-liquid separation baffle 33 near the exhaust port 311. The gaps between the middle vapor-liquid separation baffle 33 and the two front-end vapor-liquid separation baffles 32 are opposite, and the width of the middle vapor-liquid separation baffle 33 is greater than the distance between the two front-end vapor-liquid separation baffles 32. The gaps between the middle vapor-liquid separation baffle 33 and the two rear-end vapor-liquid separation baffles 34 are opposite, and the width of the middle vapor-liquid separation baffle 33 is greater than the distance between the two rear-end vapor-liquid separation baffles 34. The mixed gas entering from the intake port is guided by the two front-end vapor-liquid separation baffles 32 and then flows towards the middle vapor-liquid separation baffle 33. It then flows along different paths on both sides of the middle vapor-liquid separation baffle 33. This process of merging, splitting, and then merging again results in higher mixing and condensation efficiency of the mixed gas and better removal of spray mist.

[0037] An oil storage tank 161 is provided inside the bottom shell 16. The oil curtain structure 11 includes an overflow trough and an oil curtain connected to one side of the overflow trough. The oil pump 14 is located outside the bottom shell 16. The input end of the oil pump 14 is connected to the inner cavity of the oil storage tank 161 through an input pipe 141, and the first output end of the oil pump 14 is connected to the inner cavity of the overflow trough through a first output pipe 142. The first output pipe 142 may also extend along the length of the overflow trough and have multiple first output holes for oil injection on its periphery, so that the medium oil can be uniformly and quickly delivered to various positions in the overflow trough.

[0038] The oil pump 14 draws the medium oil from the oil storage tank 161 and then delivers it to the overflow tank 24. Of course, a medium oil separation and cleaning device can also be installed between the oil pump 14 and the oil storage tank 16, so that the oil pump 14 can deliver cleaned medium oil to the first overflow tank 23 and the second overflow tank 24.

[0039] Specifically, in this embodiment, the front-end vapor-liquid separation baffle 32 includes a first separation plate 321 and a second separation plate 322. The first separation plate 321 is horizontally arranged, and the second separation plate 322 extends obliquely towards the direction of the middle vapor-liquid separation baffle 33. The two second separation plates 322 of the two front-end vapor-liquid separation baffles 32 are located between the two first separation plates 321. The distance between the ends of the two second separation plates 322 that are far away from the first separation plate 321 is smaller, so that the mixed gas entering from the intake port can be concentrated and guided by the two second separation plates 322 to the middle vapor-liquid separation baffle 33.

[0040] The central vapor-liquid separation baffle 33 includes a third separation plate 331 and a fourth separation plate 332. The fourth separation plate 332 is located on both sides of the third separation plate 331. The third separation plate 331 is parallel to the first separation plate 321, and the fourth separation plate 332 extends obliquely towards the direction of the front vapor-liquid separation baffle 32. The gap between the third separation plate 331 and the two second separation plates 322 is opposite, and the width of the third separation plate 331 is greater than the minimum distance between the two second separation plates 322. The mixed gas guided by the two second separation plates 322 impacts the third separation plate 331 and then flows downwards along the fourth separation plate 332, forming a vortex airflow, which can improve the mixing and condensation efficiency of spray mist and oil molecules.

[0041] Furthermore, the two rear gas-liquid separation baffles 34 extend at their closest ends toward the central gas-liquid separation baffle 33. The mixed gas guided by the fourth separation plate 332, under the suction of the exhaust fan, rushes toward the gas-liquid separation baffle 34, which then guides the mixed gas downwards. Simultaneously, the suction of the exhaust fan causes the mixed gas to repeatedly circulate, further improving the mixing and condensation efficiency of the spray mist and oil molecules.

[0042] In addition, the mixed gases guided by the two fourth separation plates 332 to different paths will collide and converge in the area between the two rear gas-liquid separation baffles 34, which can further improve the mixing and condensation efficiency of the spray mist and oil molecules. After the spray mist and oil molecules mix, they will eventually fall onto the bottom plate 38 and then flow into the oil storage tank 161.

[0043] Please refer to Figure 3In this embodiment, enclosing side plates 36 are provided around the middle vapor-liquid separation baffle 33, the front vapor-liquid separation baffle 32 and the rear vapor-liquid separation baffle 34. The enclosing side plates 36 enclose the middle vapor-liquid separation baffle 33, the front vapor-liquid separation baffle 32 and the rear vapor-liquid separation baffle 34 to form an enclosing groove on the side of the middle vapor-liquid separation baffle 33, the front vapor-liquid separation baffle 32 and the rear vapor-liquid separation baffle 34 near the air intake.

[0044] The middle vapor-liquid separation baffle 33, the front vapor-liquid separation baffle 32, and the rear vapor-liquid separation baffle 34 are provided with protruding strips 37 on the side near the air intake.

[0045] The uniformity of the enclosed side plate 36 and the raised strip 37 can improve the mixing effect of spray mist and oil molecules.

[0046] In this embodiment, a filter plate 35 is provided between the rear gas-liquid separation baffle 34 and the exhaust port 311, and the filter plate 35 can filter the mixed gas.

[0047] Please refer to Figure 2 In this embodiment, a raised step 162 is provided inside the bottom shell 16 at the position of the outer cover 13. The top surface of the raised step 162 is inclined, and the end of the top surface of the raised step 162 near the oil storage tank 161 is lower. The top surface of the raised step 162 is connected to the oil storage tank 161. The second output end of the oil pump 14 is connected to the second output pipe 143, which extends to the higher end of the top surface of the raised step. Multiple second output holes for spraying oil onto the top surface of the raised step are provided around the second output pipe 143. In this way, an oil curtain is also formed on the top surface of the raised step 162, which can improve the removal efficiency of spray mist.

[0048] Existing oil spray booths simply use a few flat plates to guide the flow of the oil medium, which is not efficient enough in removing spray mist. Therefore, the oil curtain in this embodiment includes an inner oil curtain 21 and an outer oil curtain 22, and the overflow troughs include a first overflow trough 23 and a second overflow trough 24. The oil pump 14 supplies oil to the first overflow trough 23 and the second overflow trough 24 through two first output pipes 142.

[0049] Please refer to Figure 2 and Figure 4 Specifically, the first overflow groove 23 is located at the top of one side of the inner oil curtain plate 21. A first output side plate is provided on one side of the first overflow groove 23. The top height of the first output side plate is lower than the top height of the other side plates of the first overflow groove 23. The inner oil curtain plate 21 is connected to the outside of the first output side plate so that the medium oil in the first overflow groove 23 can overflow from the side where the first output plate is located and flow downward along the inner oil curtain plate 21.

[0050] The second overflow groove 24 is located on the top of one side of the outer oil curtain plate 22. A second output side plate is provided on one side of the second overflow groove 24. The top height of the second output side plate is lower than the top height of the other side plates of the second overflow groove 24. The outer oil curtain plate 22 is inclinedly connected to the outside of the second output side plate so that the medium oil in the second overflow groove 24 can overflow from the side where the second output plate is located and flow downward along the outer oil curtain plate 22.

[0051] The outer oil curtain plate 22 includes multiple first plates 221 and multiple second plates 222. The first plates 221 and the second plates 222 have different inclinations, and the multiple first plates 221 and the multiple second plates 222 are arranged alternately. This increases the area of ​​the oil curtain, thereby improving the removal efficiency of spray mist and achieving a better removal effect.

[0052] In this embodiment, the first plate 221 is located outside the second plate 222. The first plate 221 includes a middle plate 2211 and side plates 2212 located on both sides of the middle plate 2211. The middle plate 2211 and the side plates 2212 are connected in a bent structure, thereby forming a raised surface on the outer side of the first plate 221, further increasing the area of ​​the oil curtain.

[0053] Please refer to Figure 4 Furthermore, along the downward direction of the second overflow groove 24, the width of the intermediate plate 2211 gradually decreases, the top of the intermediate plate 2211 is wider to better receive the medium oil overflowing from the second overflow groove 24, and the width of the side plate 2212 gradually increases.

[0054] In this embodiment, the gap between the second plate 222 and the adjacent first plate 221 is opposite, and the width of the second plate 222 is greater than the gap between the adjacent first plate 221, so that the total oil-passing area of ​​the second plate 222 and the first plate 221 is large.

[0055] Please refer to Figure 5 and Figure 6 In this embodiment, a first bending plate 2213 is provided on the top of the first plate 221. The first bending plate 2213 wraps around and connects to the top of the second output side plate, so that the medium oil overflowing from the second overflow groove 24 flows better to the first plate 221.

[0056] The bottom of the second overflow tank 24 is provided with a connecting plate 2221, and the second plate 222 is connected to the connecting plate 2221. The outer surface of the second plate 222 is aligned with the outer surface of the second output side plate. This allows the first plate 221 and the second plate 222 to be compactly arranged on one side of the second overflow tank 24, and both can effectively receive the medium oil overflowing from the second overflow tank 24.

[0057] In addition, a second bending plate 2214 is provided between adjacent first bending plates 2213. The second bending plate 2214 wraps around and connects to the top of the second output side plate, and the outer surface of the second bending plate 2214 is flush with the outer surface of the first bending plate 2213. In this way, no groove is formed between adjacent first bending plates 2213, which facilitates the flow of medium oil in the second overflow groove 24 to the first plate body 221.

[0058] It is understandable that the first bending plate 2213 and the second bending plate 2214 can be integrally formed or separate structures.

[0059] In this embodiment, a vortex plate 15 is provided at the air intake. The concave side of the vortex plate 15 is connected to the bottom end of the inner oil curtain plate 21. The bottom end of the inner oil curtain plate 21 is bent and extended to the inner side of the vortex plate 15, so that the medium oil guided by the inner oil curtain plate 21 generates vortex flow in the vortex plate 15, which is conducive to absorbing and removing spray mist.

[0060] The exhaust housing 31 has a base plate 38 at its bottom end, which extends inclined towards the bottom housing 16. The lower end of the base plate 38 is connected to the scroll plate 15, and the third output end of the oil pump 14 is connected to the third output pipe 144. The third output pipe 144 extends to the higher end of the base plate 38, and multiple third output holes for spraying oil onto the base plate 38 are provided around its periphery. The medium oil on the base plate 38 flows into the scroll plate 15 and mixes with the medium oil flowing down from the inner oil curtain plate 21, further generating vortex flow to improve the absorption and removal of spray mist. The medium oil in the scroll plate 15 eventually flows into the oil storage tank 161.

[0061] The working principle of this invention is as follows: the medium oil in the first overflow tank 23 overflows from the side where the first output plate is located and flows downward along the inner oil curtain plate 21; the medium oil in the second overflow tank 24 overflows from the side where the second output plate is located and flows downward along the outer oil curtain plate 22. On the other hand, a negative pressure is generated in the exhaust mechanism 12 by a fan, and air containing spray mist is drawn into the outer cover 13 through the air intake, and moves towards the oil curtains on the inner oil curtain plate 21 and the outer oil curtain plate 22 to form contact, thereby capturing the spray mist.

[0062] Then, the mixed gas entering from the intake port is concentrated and guided by the two second separation plates 322 to the central vapor-liquid separation baffle 33. After impacting the third separation plate 331, the mixed gas guided by the two second separation plates 322 flows downward along the fourth separation plate 332, forming a vortex airflow. Under the suction of the exhaust fan, the mixed gas guided by the fourth separation plate 332 rushes towards the vapor-liquid separation baffle 34, which guides the mixed gas downward again. At the same time, in conjunction with the suction of the exhaust fan, the mixed gas repeatedly circulates and is finally discharged from the exhaust port 311 after being filtered by the filter screen 35.

[0063] In this preferred embodiment of the oil spraying booth, a central vapor-liquid separation baffle is positioned between two front-end vapor-liquid separation baffles and two rear-end vapor-liquid separation baffles. The mixed gas entering from the intake port is guided by the two front-end vapor-liquid separation baffles and then flows towards the central vapor-liquid separation baffle. It then flows along different paths on both sides of the central vapor-liquid separation baffle. This process of merging, splitting, and then merging again results in higher mixing and condensation efficiency of the mixed gas, and better removal of spray mist. In addition, the oil curtain structure inside the oil spray booth, by setting an inner oil curtain and an outer oil curtain, and the outer oil curtain including an alternating first plate and a second plate, can increase the area of ​​the oil curtain, thereby improving the removal efficiency of spray mist and achieving a better removal effect.

[0064] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. An oil spraying booth, characterized in that, include: Exhaust system, oil curtain structure, outer casing, exhaust fan, bottom shell, and oil pump; The exhaust mechanism and the outer cover are disposed on the top of the bottom shell. The exhaust mechanism includes an exhaust housing and a gas-liquid separation component disposed within the exhaust housing. The top of the exhaust housing is provided with an exhaust port and the bottom is provided with an intake port. The exhaust fan is connected to the exhaust port. The outer cover is located on one side of the exhaust housing. The inner cavity of the outer cover is connected to the intake port. The oil curtain structure is located within the outer cover. The oil curtain structure and the oil curtain formed therein cover the intake port. The vapor-liquid separation assembly includes a central vapor-liquid separation baffle, two front-end vapor-liquid separation baffles, and two rear-end vapor-liquid separation baffles. The two front-end vapor-liquid separation baffles are located on the side of the central vapor-liquid separation baffle closer to the intake port, and the two rear-end vapor-liquid separation baffles are located on the side of the central vapor-liquid separation baffle closer to the exhaust port. The gaps between the central vapor-liquid separation baffle and the two front-end vapor-liquid separation baffles are opposite, and the width of the central vapor-liquid separation baffle is greater than the gap between the two front-end vapor-liquid separation baffles. An oil storage tank is provided inside the bottom shell. The oil curtain plate structure includes an overflow groove and an oil curtain plate connected to one side of the overflow groove. The oil pump is located outside the bottom shell. The input end of the oil pump is connected to the inner cavity of the oil storage tank through an input pipe. The first output end of the oil pump is connected to the inner cavity of the overflow groove through a first output pipe.

2. The oil spraying booth according to claim 1, characterized in that, The front-end vapor-liquid separation baffle includes a first separation plate and a second separation plate. The first separation plate is horizontally arranged, and the second separation plate extends inclinedly towards the direction of the middle vapor-liquid separation baffle. The two second separation plates of the two front-end vapor-liquid separation baffles are located between the two first separation plates, and the distance between the ends of the two second separation plates away from the first separation plate is smaller.

3. The oil spraying booth according to claim 2, characterized in that, The central vapor-liquid separation baffle includes a third separation plate and a fourth separation plate. The fourth separation plate is provided on both sides of the third separation plate. The third separation plate is parallel to the first separation plate. The fourth separation plate extends obliquely towards the direction of the front vapor-liquid separation baffle. The gap between the third separation plate and the two second separation plates is opposite. The width of the third separation plate is greater than the minimum distance between the two second separation plates.

4. The oil spraying booth according to claim 3, characterized in that, The two rear gas-liquid separation baffles extend at their closest points toward the direction of the middle gas-liquid separation baffle.

5. The oil spraying booth according to claim 1, characterized in that, The middle vapor-liquid separation baffle, the front vapor-liquid separation baffle, and the rear vapor-liquid separation baffle are all provided with enclosing side plates on their periphery. The enclosing side plates enclose the middle vapor-liquid separation baffle, the front vapor-liquid separation baffle, and the rear vapor-liquid separation baffle to form an enclosing groove on the side of the rear vapor-liquid separation baffle that is close to the air intake. The middle vapor-liquid separation baffle, the front vapor-liquid separation baffle, and the rear vapor-liquid separation baffle are provided with protruding strips on the side near the air intake.

6. The oil spraying booth according to claim 1, characterized in that, A filter screen is provided between the rear gas-liquid separation baffle and the exhaust port.

7. The oil spraying booth according to claim 1, characterized in that, The bottom shell has a raised step positioned relative to the outer cover. The top surface of the raised step is inclined, and the end of the top surface of the raised step closer to the oil storage tank is lower. The top surface of the raised step is connected to the oil storage tank. The second output end of the oil pump is connected to a second output pipe. The second output pipe extends to the higher end of the top surface of the raised step. The periphery of the second output pipe is provided with a plurality of second output holes for spraying oil onto the top surface of the raised step.

8. The oil spraying booth according to claim 1, characterized in that, The oil curtain plate includes an inner oil curtain plate and an outer oil curtain plate, and the overflow groove includes a first overflow groove and a second overflow groove. The first overflow groove is located at the top of one side of the inner oil curtain plate. A first output side plate is provided on one side of the first overflow groove. The top height of the first output side plate is lower than the top height of the other side plates of the first overflow groove. The inner oil curtain plate is connected to the outside of the first output side plate so that the medium oil in the first overflow groove can flow downward along the inner oil curtain plate. The second overflow groove is located at the top of one side of the outer oil curtain plate. A second output side plate is provided on one side of the second overflow groove. The top height of the second output side plate is lower than the top height of the other side plates of the second overflow groove. The outer oil curtain plate is inclinedly connected to the outside of the second output side plate so that the medium oil in the second overflow groove can flow downward along the outer oil curtain plate. The outer oil curtain panel includes multiple first panels and multiple second panels, with the first panels and second panels having different degrees of inclination, and the multiple first panels and multiple second panels are arranged alternately.

9. The oil spraying booth according to claim 8, characterized in that, The first plate is located outside the second plate. The first plate includes a middle plate and side plates located on both sides of the middle plate. The middle plate and the side plates are connected by a bent structure, so that the outer surface of the first plate forms a convex surface.

10. The oil spraying booth according to claim 9, characterized in that, A vortex plate is provided at the air intake. The concave side of the vortex plate is connected to the bottom end of the inner oil curtain plate. The bottom end of the inner oil curtain plate is bent and extended to the inner side of the vortex plate, so that the medium oil guided by the inner oil curtain plate generates vortex flow in the vortex plate. The bottom end of the exhaust housing is provided with a base plate, which extends inclined towards the bottom housing. The lower end of the base plate is connected to the vortex plate. The third output end of the oil pump is connected to the third output pipe, which extends to the higher end of the base plate. The periphery of the third output pipe is provided with a plurality of third output holes for spraying oil onto the base plate.

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