Spraying piece and paint mist tail gas treatment device

Abstract

According to the spraying piece and the paint mist tail gas treatment device, the spraying piece is arranged in the paint mist tail gas treatment device, the spraying piece comprises a water inlet barrel and a water outlet mechanism, the water inlet barrel is provided with a first opening and a second opening, the first opening is a water inlet, and the first opening and the second opening are distributed in the axial direction; the water outlet mechanism is at least partially located in the water inlet cylinder, and a gap is formed between the water outlet mechanism and the end of the second opening to form a water outlet; the water outlet mechanism is rotationally connected with the water inlet cylinder, and the water outlet mechanism is used for rotationally throwing liquid to the water outlet, so that a stable and efficient water curtain is provided, and the treatment effect of the paint mist tail gas treatment device is improved in an auxiliary manner; the paint mist tail gas can penetrate through a water curtain formed by the spraying piece, dust or paint in the paint mist tail gas can be knocked down by water curtain liquid, and therefore impurities in the paint mist tail gas are separated from gas, and treatment of the paint mist tail gas is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of paint mist exhaust gas treatment devices, and in particular to a spray element and a paint mist exhaust gas treatment device. Background Art

[0002] In the prior art, after a product is spray-painted, paint mist exhaust gas is generated. The paint mist exhaust gas contains powder and paint mist, and cannot be directly discharged into the external air to avoid pollution. Therefore, the paint exhaust gas needs to be recovered and processed.

[0003] However, in the prior art, when treating paint mist exhaust gas, most of the time a drum structure is used to treat the paint mist exhaust gas. One end of the drum is an air inlet, and the other end is an air outlet. A water trough is provided at the bottom of the drum, and a filter cloth is wrapped around the outside of the drum. The paint mist exhaust gas enters the drum from the air inlet, and when the drum rotates, it drives the exhaust gas in the drum to rotate, and the paint mist exhaust gas is filtered by the filter cloth and then discharged to the outside. However, such a paint mist exhaust gas treatment device needs to rotate the drum all the time, which consumes a lot of energy. On the other hand, the paint mist treatment is only performed by changing the paint mist exhaust gas, and the paint and dust in the paint mist exhaust gas are separated from the gas only by rotation, and the paint mist purification effect is poor.

[0004] Therefore, the paint mist exhaust gas treatment device in the prior art has further room for improvement. Summary of the invention

[0005] In view of this, in order to address the technical problems in the above-mentioned prior art that the paint mist exhaust gas treatment device has poor purification effect and high energy consumption, the present application provides a spray component and a paint mist exhaust gas treatment device. The spray component is used in the paint mist exhaust gas treatment device to generate a water curtain to assist the paint mist exhaust gas treatment device to better separate and purify the paint mist exhaust gas, and can effectively save energy consumption.

[0006] First aspect

[0007] The present application provides a spray element, comprising a water inlet cylinder and a water outlet mechanism, wherein the water inlet cylinder is provided with a first opening and a second opening, wherein the first opening is a water inlet, and the first opening and the second opening are distributed along the axial direction;

[0008] The water outlet mechanism is at least partially located in the water inlet cylinder, and there is a gap between the water outlet mechanism and the end of the second opening to form a water outlet;

[0009] Wherein, the water outlet mechanism is rotatably connected to the water inlet cylinder, and the water outlet mechanism is used to rotate and throw the liquid toward the water outlet.

[0010] Preferably, the water outlet mechanism comprises a guide member and a guide vane, and the guide vane is arranged on the end surface of the guide member facing the first opening;

[0011] The guide vane is arranged obliquely to the axial direction, and the guide vane is used to change the flow direction of the liquid from the first opening to the second opening;

[0012] The end surface of the guide member facing the first opening is a conical arc surface, and the guide member is rotatably connected to the water inlet cylinder.

[0013] Preferably, the spray component further comprises a connecting assembly, wherein the connecting assembly is at least partially located in the water inlet cylinder, one end of the connecting assembly is fixedly connected to the water inlet cylinder, and the other end is rotatably connected to the water outlet mechanism.

[0014] Preferably, it further comprises a flow divider, wherein the flow divider is connected to the end of the connecting component close to the first opening;

[0015] Wherein, the end of the diverter facing the first opening is a conical structure.

[0016] The spray element of the present application has at least the following technical effects:

[0017] 1. The water outlet mechanism is rotatably connected to the water inlet mechanism, and the guide vane of the water outlet mechanism is inclined in the axial direction. The guide vane acts between the first opening and the second opening. When the liquid flows from the first opening to the second opening, the liquid drives the water outlet mechanism to rotate, and the guide vane changes the rotation direction of the liquid. The water outlet mechanism rotates and throws the liquid toward the water outlet, thereby giving the liquid a greater water outlet impact force, ensuring that the water outlet will not be blocked, thereby ensuring the integrity of the water curtain formed by the spraying part;

[0018] 2. By setting a guide piece, the end surface of the guide piece connecting the guide blade is set to a conical surface, so as to guide the liquid, so that the liquid is dispersed more evenly around, thereby ensuring the uniformity and effectiveness of the water curtain;

[0019] 3. By arranging a diverter at the end of the connecting assembly close to the first opening, the end of the diverter is a conical structure, which can divert the liquid when water enters, so that the liquid can flow to the surroundings better, ensuring the effectiveness and integrity of the water curtain formation.

[0020] Second aspect

[0021] The present application provides a paint mist exhaust gas treatment device, comprising the spray element described in any embodiment provided in the first aspect;

[0022] Wherein, the paint mist exhaust gas treatment device further comprises a filter cartridge, the filter cartridge is provided with an air inlet and an air outlet, and the air outlet is arranged above the air inlet;

[0023] The spraying member is located between the air inlet and the air outlet, and is used to generate a water curtain in the filter cartridge.

[0024] Preferably, the paint mist exhaust gas treatment device further comprises a reversing mechanism, wherein the reversing mechanism is located between the air inlet and the air outlet, and the reversing mechanism is used to guide the gas along the rotation direction.

[0025] Preferably, the reversing mechanism is provided as one, and the spraying element is located above the reversing mechanism;

[0026] Alternatively, there are at least two reversing mechanisms, two adjacent reversing mechanisms guide the gas in opposite directions, and the spray element is located between the two adjacent reversing mechanisms.

[0027] Preferably, the reversing mechanism comprises a reversing blade and a fixing ring, the inner side of the reversing blade is connected to the fixing ring, and the outer side of the reversing blade is connected to the inner wall of the filter cartridge;

[0028] The reversing blades are arranged obliquely to the axial direction, the reversing blades are arranged in a plurality of pieces, and guide gaps are provided between the reversing blades.

[0029] Preferably, the air inlet is arranged on the side wall of the filter cartridge, and the air outlet is arranged on the top of the filter cartridge;

[0030] A liquid collecting box is provided at the bottom of the filter cartridge, and the liquid collecting box is communicated with the filter cartridge.

[0031] Preferably, the filter cartridge comprises a guide plate, the guide plate is arranged at the bottom of the filter cartridge, a liquid outlet is arranged on the guide plate, and the filter cartridge is connected with the liquid collecting tank through the filter outlet;

[0032] Wherein, the guide plate is an inverted cone structure.

[0033] The spraying element and paint mist exhaust gas treatment device of the present application have at least the following technical effects:

[0034] 1. By setting a filter cartridge and a spraying part in the paint mist exhaust gas treatment device, the spraying part forms a water curtain in the filter cartridge. When the paint mist exhaust gas flows from the air inlet to the air outlet, it will pass through the water curtain formed by the spraying part. The dust or paint in the paint mist exhaust gas will be knocked down by the water curtain liquid, so that the impurities in the paint mist exhaust gas are separated from the gas, and the paint mist exhaust gas is treated;

[0035] 2. By setting the air inlet at the side end of the filter cartridge, when the paint mist exhaust gas enters the filter cartridge from the air inlet, the inner wall of the filter cartridge guides the paint mist exhaust gas, causing the paint mist exhaust gas to rotate and rise toward the air outlet, thereby increasing the movement path of the paint mist exhaust gas, increasing the probability of the water curtain contacting the waste and dust in the paint mist exhaust gas, and at the same time, because the gas, dust and waste need to overcome different pressures during rotation, the separation rate of the gas and the waste is accelerated, thereby accelerating the purification rate of the paint mist exhaust gas;

[0036] 3. By setting a reversing mechanism in the filter cartridge, the movement of the paint mist exhaust gas is rotationally guided, thereby further increasing the movement path of the paint mist exhaust gas, cooperating with the spray parts to improve the separation effect, and the probability of impurities in the exhaust gas colliding with the inner wall of the filter cartridge is increased, thereby further increasing the separation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of a spray element provided in one embodiment of the present application;

[0038] Figure 2 is a schematic diagram of the cross-sectional structure of a spray element provided in one embodiment of the present application;

[0039] Figure 3 It is a structural schematic diagram of a water outlet mechanism provided in one embodiment of the present application;

[0040] Figure 4 It is a schematic diagram of the three-dimensional structure of a paint mist exhaust gas treatment device provided in one embodiment of the present application;

[0041] Figure 5 This is a schematic diagram of the cross-sectional structure of a paint mist exhaust gas treatment device provided in an embodiment of the present application. Figure 1 ;

[0042] Figure 6 This is a schematic diagram of the cross-sectional structure of a paint mist exhaust gas treatment device provided in an embodiment of the present application. Figure 2 ;

[0043] Figure 7 yes Figure 6 A magnified schematic diagram of local A.

[0044] Reference numerals:

[0045] 1. Paint mist exhaust gas treatment device; 11. Filter cartridge; 12. Mounting bracket; 13. Filter cabinet; 14. Reversing mechanism; 15. Liquid collecting box; 16. Air intake pipe;

[0046] 111, air inlet; 112, air outlet; 113, guide plate; 114, liquid outlet;

[0047] 141. reversing blade; 142. fixing ring;

[0048] 2. Spraying parts; 21. Water inlet mechanism; 22. Water outlet mechanism; 23. Diverter parts;

[0049] 211, water inlet cylinder; 212, connecting piece; 213, limiting piece; 214, rotating piece; 215, bearing; 216, limiting seat;

[0050] 2111, first opening; 2112, second opening; 2121, rotation slot;

[0051] 221. guide member; 222. guide vane; 2211. guide portion; 2212. connection portion; 2221. first connection end; 2222. second connection end; 2223. free end; 2212.1. support column; 2212.2. support platform. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail, clearly and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0053] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0054] Those skilled in the art should understand that, in the disclosure of the present application, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.

[0055] The present application is further described in detail below in conjunction with the accompanying drawings. Figures 1 to 7 illustrate.

[0056] First aspect

[0057] The present application provides a spray element 2, which is used in a paint mist exhaust gas treatment device 1, and is used to generate a water curtain to assist in separation of the paint mist exhaust gas.

[0058] Specifically, Figures 1 to 3As shown, the spray element 2 includes a water inlet mechanism 21 and a water outlet mechanism 22, one end of the water inlet mechanism 21 is connected to the water inlet pipe, and the other end cooperates with the water outlet mechanism 22 to discharge water, so that a water curtain is formed after the spray element 2 discharges water; in this embodiment, the water inlet mechanism 21 includes a first opening 2111 and a second opening 2112, the first opening 2111 and the second opening 2112 are arranged along the axial direction, wherein the first opening 2111 is a water inlet, and the second opening 2112 cooperates with the water outlet mechanism 22 to form a water outlet; the water outlet mechanism 22 is rotatably connected to the water inlet mechanism 21, and a guide blade 222 is provided on the water inlet mechanism 21, and the guide blade 222 is arranged in a plurality of, and the plurality of guide blades 222 are arranged at equal intervals, wherein the guide blade 222 is arranged obliquely to the axial direction, and the guide blade 222 is located between the water inlet and the water outlet, and the guide blade 222 as a whole is basically oriented toward the first opening 2111 In the direction, when the liquid enters the water inlet mechanism 21 from the first opening 2111 and flows toward the second opening 2112, the liquid acts on the water outlet mechanism 22. Since the water outlet mechanism 22 is rotatably connected to the water inlet mechanism 21, after the liquid acts on the water outlet mechanism 22, it will act on the guide blade 222. Since the guide blade 222 is arranged inclined in the axial direction, the axial force of the liquid on the guide blade 222 will be converted into a circumferential force, thereby driving the guide blade 222 to rotate. The guide blade 222 rotates under the continuous impact of the liquid. At the same time, the guide blade 222 also changes the flow direction of the liquid, and throws the liquid out during rotation, so that when the liquid flows to the water outlet, it has a large rotational impact force, and then the water outlet can rotate to discharge water to form a water curtain. At the same time, the large impact force can prevent dust or paint blocks from clogging the water outlet to ensure the integrity and effectiveness of the water curtain.

[0059] In this embodiment, the liquid provides rotational force to the guide member 221, and at the same time, the guide member 221 cooperates with the guide blade 222 to change the flow direction of the liquid and rotate the liquid out. That is, the water outlet mechanism 22 of the present application does not require additional external driving force, and can achieve self-driven rotation, which can effectively achieve resource conservation.

[0060] Further, such as Figures 2 to 3As shown, the water inlet mechanism 21 includes a water inlet cylinder 211 and a connecting assembly. The water inlet cylinder 211 is a cylindrical structure. The first opening 2111 and the second opening 2112 are respectively arranged on the opposite ends of the water inlet cylinder 211. The first opening 2111 and the second opening 2112 are coaxially arranged. The first opening 2111 is located above the second opening 2112. The diameter of the first opening 2111 is smaller than the diameter of the second opening 2112. The connecting assembly is at least partially located in the water inlet cylinder 211 and at least partially passes through the second opening 2112. One end of the connecting assembly is fixedly connected to the water inlet cylinder 211, and the other end is rotatably connected to the water outlet mechanism 22. Among them, the water outlet mechanism 22 also includes a guide member 221. The guide member 221 is provided with a rotating hole. The guide member 221 is sleeved on the connecting assembly through the rotating hole, so that the guide member 221 is rotatably connected to the connecting assembly; as shown Figure 2 As shown, the guide member 221 is partially located in the water inlet cylinder 211, and the end surface of the guide member 221 facing the second opening 2112 is a tapered structure, so that the upper end of the guide member 221 is small and the lower end is large, so that the end surface of the guide member 221 facing the second opening 2112 is inclined, which has a guiding effect on the liquid. When the liquid enters from the first opening 2111 and falls on the guide member 221, the guide member 221 guides the liquid to the water outlets around it, so that the water curtain formed by the liquid sprayed by the spray member 2 can be more uniform and complete; Figure 3 As shown, the guide blade 222 is arranged on the conical end face of the guide member 221. The guide blade 222 is arranged circumferentially along the end face of the guide member 221. When the guide blade 222 rotates following the guide member 221, the liquid is evenly rotated and thrown out to the water outlet, so that the water outlet is not easily blocked and the water curtain is formed more completely and evenly.

[0061] A water outlet is formed between the end surface of the guide member 221 and the second opening 2112. Figure 2 As shown, the water outlet is an annular structure. Along the axial direction, there is a gap between the bottom of the water inlet cylinder 211 and the guide member 221, which is the water outlet. It can be seen that the water outlet is in the extension direction of the conical surface of the guide member 221, that is, the liquid will flow toward the water outlet along the trend when guided by the conical surface of the guide member 221, thereby ensuring the smoothness of the water outlet of the spray member 2; even if the guide member 221 does not rotate, it is ensured that an effective water curtain is formed after the water is discharged from the spray member 2.

[0062] It should be noted that the axial width of the water outlet of the present application is larger than the water outlet aperture of a general spray pipe, thereby reducing the probability of the water outlet being blocked by dust or paint blocks.

[0063] In another optional embodiment of the present application, the guide vane 222 is further expanded; Figure 2As shown, the guide blade 222 is completely located in the water inlet cylinder 211. In the axial direction, the bottom of the guide blade 222 is higher than the bottom of the second opening 2112 of the water inlet cylinder 211, and the outer diameter of the guide blade 222 is smaller than the inner diameter of the water inlet cylinder 211, so as to ensure that the guide blade 222 can act on the liquid while avoiding interference between the guide blade 222 and the water inlet cylinder 211 when rotating, thereby ensuring the smoothness of the rotation of the guide blade 222.

[0064] like Figure 2 , Figure 3 As shown, the guide vane 222 includes a connecting end and a free end 2223, wherein the connecting end is the end of the guide vane 222 connected to the guide member 221, and the free end 2223 is the end of the guide vane 222 not connected to the guide member 221, wherein the free end 2223 extends in the circumferential direction away from the connecting end, and the distance between the free end 2223 and the central axis is greater than the distance between the connecting end and the central axis, as shown in FIG. Figure 3 As shown, the guide blade 222 is tilted as a whole so that the end face of the guide blade 222 is tilted with the axial direction and the horizontal plane, so that the end face of the guide blade 222 is facing the direction of the first opening 2111. At the same time, when the liquid acts on the end face of the guide blade 222 along the axial direction, the axial force of the liquid acts on the end face of the guide blade 222, which can better convert the axial force into a circumferential force, thereby providing a force for the guide member 221 to rotate. At the same time, when the guide member 221 rotates, it will change the flow direction of the liquid and convert the axial displacement of the liquid. When the guide member 221 rotates, the liquid will be thrown out and a larger rotational impact force will be given to the liquid, which can avoid dust clogging at the water outlet.

[0065] Among them, Figure 2 , Figure 3 As shown, the connection end is divided into a first connection end 2221 and a second connection end 2222, the first connection end 2221 and the second connection end 2222 are distributed along the axial direction, and the projections of the first connection end 2221 and the second connection end 2222 on the central axis do not overlap, that is, the first connection end 2221 and the second connection end 2222 are not at the same axial height, wherein the first connection end 2221 is located above the second connection end 2222; the distance between the first connection end 2221 and the central axis is smaller than the distance between the second connection end 2222 and the central axis, that is, the first connection end 2221 is closer to the central axis, and the second connection end 2222 extends outward, so that the guide blade 222 presents as shown in FIG. Figure 3 The inclined shape shown makes the guide vane 222 have a tendency to follow the inclination of the conical end surface of the guide member 221, which can improve the sensitivity of the rotation of the guide member 221.

[0066] In this embodiment, a guide channel is formed between the guide blades 222, one end of the guide channel faces the first opening 2111, and the other end faces the second opening 2112. The guide channel is inclined as a whole, and is distributed along the circumferential direction between the upper end and the lower end. When the liquid is located between the guide channels, the liquid is guided to rotate so that the liquid can be better rotated and thrown out. Figure 2 As shown, the inner wall of the second opening 2112 is an arc surface, the conical surface of the guide member 221 is an arc structure, the inner wall of the bottom of the water inlet cylinder 211 is an arc surface, and the bottom thickness of the water inlet cylinder 211 is small, so that the inner wall of the bottom of the water inlet cylinder 211 is an arched arc surface; and the conical surface of the guide member 221 is an arc-shaped concave surface, as shown in FIG. Figure 2 As shown, the arc surface trend of the inner wall at the bottom of the water inlet cylinder 211 is similar to the arc surface trend of the conical surface of the guide member 221, so as to increase the guiding force on the liquid. At the same time, the conical surface of the guide member 221 and the bottom inner wall of the water inlet cylinder 211 form a water outlet with a gradually decreasing opening, thereby increasing the pressure of the liquid when it is sprayed from the water outlet, so as to expand the distance of the liquid spraying, so that the water curtain formed by the spray member 2 is larger, more complete and better.

[0067] like Figure 2 As shown, the guide member 221 includes a guide portion 2211, the guide portion 2211 is a conical structure, and the guide blade 222 is arranged on the guide portion 2211; the guide portion 2211 and the second opening 2112 of the water inlet cylinder 211 form a water outlet, the center of the guide portion 2211 is located in the water inlet cylinder 211, and the side of the guide portion 2211 extends radially downward out of the water inlet cylinder 211, so that after the liquid is sprayed out from the water outlet, it will be thrown out along the end surface of the guide portion 2211, thereby increasing the endurance of the liquid and increasing the stability of the water curtain formation.

[0068] In another optional embodiment of the present application, the water inlet mechanism 21 is further expanded; Figure 2 As shown, the connection assembly includes a connection member 212 and a stop member 213. The connection member 212 is a columnar structure as a whole. Figure 2As shown, the upper end of the connecting member 212 is located in the water inlet cylinder 211, and the upper end of the connecting member 212 is connected to the water inlet cylinder 211 through a connecting column. There are at least two connecting columns, one end of the connecting column is connected to the outer wall of the connecting member 212, and the other end is connected to the inner wall of the water inlet cylinder 211, so as to fix the connecting member 212 to the water inlet cylinder 211; wherein, the end of the connecting member 212 does not exceed the first opening 2111; the lower end of the connecting member 212 is rotatably connected to the guide portion 2211 of the guide member 221, and the guide portion 2211 is provided with a rotating hole, and the connecting member 212 passes through the rotating hole and is exposed to the outside of the guide member 221, and the part of the connecting member 212 exposed to the rotating member 214 is connected to the limit member 213, and the limit member 213 is detachably connected to the connecting member 212, thereby limiting the axial displacement of the guide member 221 on the connecting member 212; in this embodiment, the limit member 213 is threadedly connected to the connecting member 212.

[0069] In this embodiment, correspondingly, the connecting member 212 is provided with a limiting block (not shown in the figure) at the upper end of the guiding portion 2211 , so as to cooperate with the limiting member 213 at the bottom to axially limit the guiding portion 2211 .

[0070] Furthermore, based on the above embodiments, the connection assembly is further improved; Figure 2 As shown, the guide member 221 also includes a connecting portion 2212, the guide portion 2211 and the connecting portion 2212 are distributed along the axial direction, the guide portion 2211 is located at the upper end of the connecting portion 2212, the guide portion 2211 is provided with a first rotation hole, and the connecting portion 2212 is provided with a second rotation hole; Figure 1 to Figure 2 As shown, the connecting portion 2212 includes a connecting platform and support columns 2212.1. The support columns 2212.1 are provided in at least two pieces. The upper ends of the support columns 2212.1 are connected to the bottom of the guide portion 2211, and the lower ends of the support columns 2212.1 are connected to the connecting platform. The support columns 2212.1 are arranged at equal intervals along the circumference of the connecting platform. The circumferential diameter formed by the support columns 2212.1 and the guide portion 2211 is larger than the circumferential diameter formed with the support platform 2212.2, so as to increase the supporting effect on the guide portion 2211, and can also reduce the volume and reduce the rotational load.

[0071] In this embodiment, if Figure 2As shown, the second rotating hole is arranged on the support platform 2212.2, and the aperture of the second rotating hole is smaller than the aperture of the first rotating hole; the connecting component also includes a rotating member 214, and a rotating groove 2121 is provided at the end of the connecting member 212 away from the first opening 2111, and the rotating groove 2121 is at the entrance of the end of the connecting member 212 away from the first opening 2111, and the upper end of the rotating member 214 is arranged in the rotating groove 2121, and the lower end of the rotating member 214 passes through the second rotating hole and is connected with the limit member 213; wherein a bearing 215 is provided on the outside of the rotating member 214, and the inner wall of the bearing 215 is in contact with the connecting member 212, and the outer wall of the bearing 215 is in contact with the inner wall of the rotating groove 2121, that is, the rotating member 214 is rotatably connected to the connecting member 212 through the bearing 215.

[0072] Specifically, the rotating member 214 includes a first portion and a second portion, the first portion and the second portion are coaxially arranged, the outer diameter of the first portion is larger than the outer diameter of the second portion, the first portion is arranged in the rotating groove 2121 and is rotatably connected to the connecting member 212, and the second portion passes through the second rotating hole and is connected to the limiting member 213; in this embodiment, the outer diameter of the first portion is larger than the outer diameter of the second rotating hole, the outer diameter of the second portion is almost the same as the inner diameter of the second rotating hole, the outer diameter of the limiting member 213 is larger than the outer diameter of the second rotating hole, and the second portion is provided with a thread so that the second portion is threadedly connected to the limiting member 213; in this embodiment In the embodiment, the second part and the limit member 213 cooperate with each other to clamp the support platform 2212.2, so that the second part and the support platform 2212.2 are relatively fixed. When the guide member 221 rotates, the rotating member 214 is driven to rotate relative to the connecting member 212. The advantage of this arrangement is that the rotating connecting part 2212 is arranged at the lower end of the water inlet and the water outlet, which reduces the probability of liquid contacting the rotating part, avoids dust from entering the rotating part to cause blockage, and reduces the corrosion of the rotating part by the liquid, thereby improving the service life and working stability of the spray part 2.

[0073] Furthermore, if Figure 2 As shown, a limit seat 216 is provided at the open end of the rotating groove 2121, and the outer side of the limit seat 216 is in contact with the inner wall of the rotating groove 2121. The limit seat 216 is used to limit the displacement of the bearing 215 in the axial direction. A limit ring is also provided between the bearings 215 to ensure that the bearing 215 will not easily displace axially in the rotating groove 2121.

[0074] like Figure 2 As shown, the connecting member 212 includes a conical portion and a straight cylindrical portion, the conical portion is connected to the upper end of the straight cylindrical portion, and the guide member 221 is sleeved on the straight cylindrical portion. The inclination trend of the conical surface of the conical portion is the same as the inclination trend of the conical surface of the guide member 221 to increase the guiding property of the liquid.

[0075] In another optional embodiment of the present application, the spray element 2 is further expanded; Figure 2As shown, the spray member 2 also includes a diverter 23, which is connected to the end of the connecting member 212 of the connecting assembly close to the first opening 2111; wherein, the end of the diverter 23 facing the first opening 2111 is a conical structure, that is, the upper end of the diverter 23 is set to a conical structure, and in the first opening 2111 at the upper end of the diverter 23, the outer diameter of the diverter 23 is smaller than the caliber of the first opening 2111, so that when the liquid enters the water inlet cylinder 211 from the first opening 2111, it is diverted by the conical part of the diverter 23, so that the liquid flows more evenly to the surroundings, thereby ensuring the effectiveness and integrity of the water curtain formation.

[0076] Second aspect

[0077] The present application provides a paint mist exhaust gas treatment device 1, comprising a spray element 2 in any embodiment provided in the first aspect; Figures 4 to 7 As shown, in the present application, the paint mist exhaust gas treatment device 1 also includes a mounting bracket 12, a filter cartridge 11, a filter cabinet 13 and a liquid collecting box 15. The filter cartridge 11, the filter cabinet 13 and the liquid collecting box 15 are arranged on the mounting bracket 12, the liquid collecting box 15 is located at the lower end of the filter cartridge 11, and the filter cabinet 13 is located above the liquid collecting box 15. A filter or other filter material is placed in the filter cabinet 13 to absorb dust and ensure the quality of gas emissions; the liquid collecting box 15 is used to collect the liquid used in the filtration and other filtered impurities so as to separate and store the gas and liquid to avoid gas and liquid mixing again; in this embodiment, the filter The cylinder 11 is a cylindrical structure, and an air inlet 111 and an air outlet 112 are provided on the filter cylinder 11. The air outlet 112 is arranged above the air inlet 111, wherein the air inlet 111 is arranged on the side wall of the lower end of the filter cylinder 11, and the air outlet 112 is arranged on the top of the upper end of the filter cylinder 11. The air outlet 112 is connected with the filter cabinet 13, and the filtered gas enters the filter cabinet 13 through the air outlet 112, and is discharged from the paint mist exhaust gas treatment device 1 after being filtered again by the filter cabinet 13; a liquid outlet 114 is provided at the bottom of the filter cylinder 11, and the liquid collecting box 15 is connected with the filter cylinder 11 through the liquid outlet 114; Figure 6 , Figure 7 As shown, the spray member 2 is located between the air inlet 111 and the air outlet 112, and the spray member 2 is used to generate a water curtain perpendicular to the axial direction in the filter cartridge 11, and the liquid has a large impact force when the spray member 2 discharges water, and the generated water curtain is relatively complete and powerful, and the water curtain completely blocks the movement of the exhaust gas in the axial direction. When the paint mist exhaust gas flows from the air inlet 111 to the air outlet 112, it will pass through the water curtain formed by the spray member 2. At the same time, the liquid after the water curtain is generated will come into contact with the paint and dust in the paint mist exhaust gas during the falling process, and thus follow the liquid to fall, while the gas continues to rise through the water curtain, thereby accelerating the separation speed of impurities and gas in the paint mist exhaust gas, and further improving the efficiency and effect of paint mist exhaust gas treatment.

[0078] In this implementation, if Figure 5 , Figure 6 As shown, the air inlet 111 is set on the side end of the filter cartridge 11. When the paint mist exhaust gas enters the filter cartridge 11 from the air inlet 111, the inner wall of the filter cartridge 11 guides the paint mist exhaust gas, so that the paint mist exhaust gas rotates and rises to flow toward the air outlet 112, thereby increasing the movement path of the paint mist exhaust gas, and increasing the probability of the liquid of the water curtain contacting with the waste and dust in the paint mist exhaust gas. At the same time, due to the different pressures that the gas, dust and waste need to overcome during rotation, the rate of separation of the gas and the waste is accelerated, and the purification rate of the paint mist exhaust gas is accelerated; in addition, the probability of the paint mist exhaust gas colliding with the filter cartridge 11 when it rotates and rises increases, so that the dust and paint in the paint mist exhaust gas are knocked off or adhered to the filter cartridge 11, further accelerating the efficiency of separating impurities and waste from gas, and achieving better separation and purification effects.

[0079] like Figure 4 , Figure 6 As shown, two filter cartridges 11 are provided, and the two filter cartridges 11 share an air inlet pipe 16. The air inlet pipe 16 simultaneously intakes air into the two filter cartridges 11, and the air inlets 111 of the two filter cartridges 11 fit together, thereby saving resources and accelerating the efficiency of paint mist exhaust treatment; at the same time, the spray part 2 of the present application does not require additional power when rotating to realize rotating water discharge, and the water outlet mechanism 22 realizes self-driven rotation, which can effectively realize resource conservation.

[0080] Further, such as Figure 6 , Figure 7 As shown, the filter cartridge 11 includes a guide plate 113, which is arranged at the bottom of the filter cartridge 11. The guide plate 113 is an inverted cone structure, and the liquid outlet 114 is arranged in the middle of the guide plate 113, that is, the liquid outlet 114 is located at the lower end of the filter cartridge 11. When liquid falls onto the guide plate 113, it is guided to the liquid outlet 114 by the guide plate 113, so that all the liquid in the filter cartridge 11 can be smoothly collected into the liquid collecting tank 15, thereby avoiding the liquid that has reacted with the paint mist exhaust gas from remaining in the filter cartridge 11, causing secondary pollution to the paint mist exhaust gas newly entering the filter cartridge 11.

[0081] Furthermore, based on the above embodiment, the paint mist exhaust gas treatment device 1 is further expanded; Figure 6 , Figure 7 As shown, the paint mist exhaust gas treatment device 1 also includes a reversing mechanism 14, which is arranged in the filter cartridge 11. The reversing mechanism 14 is fixedly connected to the filter cartridge 11, and the reversing mechanism 14 is located between the air inlet 111 and the air outlet 112. The reversing mechanism 14 is used to guide the gas along the rotation direction, so that the paint mist exhaust gas can maintain a rotating upward trend in the filter cartridge 11, thereby increasing the probability of paint and dust in the paint mist exhaust gas colliding with the filter cartridge 11, and then accelerating the separation effect.

[0082] In this embodiment, the reversing mechanism 14 can be set to one or more; when the reversing mechanism 14 is set to one, the reversing mechanism 14 is preferably set at the lower end of the spray element 2, so that the movement path of the paint mist exhaust gas before reaching the water curtain is increased as much as possible, thereby increasing the separation effect of the water curtain and the liquid falling from the water curtain on the paint mist exhaust gas; of course, according to actual needs, the spray element 2 can also be set at the lower end of the reversing mechanism 14.

[0083] When there are at least two reversing mechanisms 14, Figure 6 , Figure 7 As shown, the two adjacent reversing mechanisms 14 have opposite gas guiding directions. Through such a structural setting, the paint mist exhaust gas will undergo at least one reversal when reaching the outlet 112, thereby increasing the movement path of the paint mist exhaust gas and increasing the probability of the paint mist exhaust gas colliding with the filter cartridge 11, thereby further improving the efficiency of separating paint impurities and gas in the paint mist exhaust gas, and then improving the paint mist exhaust gas treatment effect.

[0084] In addition, the spray element 2 is located between two adjacent reversing mechanisms 14, the reversing mechanism 14 below the spray element 2 forms a primary separation with the spray element 2, the reversing mechanism 14 above the spray element 2 plays a secondary separation, and the filter cabinet 13 plays a tertiary separation, thereby being able to achieve a multi-level separation effect on the paint mist exhaust gas, avoiding unclear separation of the paint mist exhaust gas, reducing the probability of gas interference and confusion during separation, and further ensuring the separation quality.

[0085] Among them, the spray element 2 can be set to one or more, and the number of settings is selected according to actual needs.

[0086] Specifically, Figure 7 As shown, the reversing mechanism 14 includes a reversing blade 141 and a fixing ring 142. The fixing ring 142 is an annular structure. There are multiple reversing blades 141. The multiple reversing blades 141 are equidistantly spaced and circumferentially arranged on the outer periphery of the fixing ring 142. The inner side of the reversing blade 141 is connected to the fixing ring 142, and the outer side of the reversing blade 141 is connected to the inner wall of the filter cartridge 11, so that the reversing blade 141 is fixed in the filter cartridge 11; wherein, the reversing blade 141 is arranged obliquely to the axial direction, and there is a guide gap between the reversing blades 141 for the paint mist exhaust gas to pass through. The guide gap is inclined and can rotate and guide the paint mist exhaust gas, and the reversing blade 141 can collide with the paint mist exhaust gas, thereby blocking the dust and paint in the paint mist exhaust gas, accelerating the separation efficiency and separation effect of the paint impurities and the gas, and further improving the working effect of the paint mist exhaust gas treatment device 1.

[0087] In the present application, the flow direction of the paint mist exhaust gas is changed by the structure itself, so that there is no need to use an additional driving device to drive the filter cartridge 11 to rotate to change the flow direction of the paint mist exhaust gas, which can effectively save resources and further improve the treatment effect.

[0088] It should be noted that the various embodiments of the present application can be arbitrarily combined into a new embodiment if the solutions do not conflict and the technical solutions can coexist.

[0089] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A spray element, characterized in that: It comprises a water inlet cylinder (211) and a water outlet mechanism (22), the water inlet cylinder (211) being provided with a first opening (2111) and a second opening (2112), the first opening (2111) being a water inlet, and the first opening (2111) and the second opening (2112) being distributed along the axial direction; The water outlet mechanism (22) is at least partially located in the water inlet cylinder (211), and a gap is provided between the water outlet mechanism (22) and the end of the second opening (2112) to form a water outlet; The water outlet mechanism (22) is rotatably connected to the water inlet cylinder (211), and the water outlet mechanism (22) is used to rotate and throw the liquid toward the water outlet.

2. The spray element according to claim 1, characterized in that: The water outlet mechanism (22) comprises a guide member (221) and a guide blade (222), wherein the guide blade (222) is arranged on an end surface of the guide member (221) facing the first opening (2111); The guide blade (222) is arranged obliquely to the axial direction, and the guide blade (222) is used to change the flow direction of the liquid from the first opening (2111) to the second opening (2112); The end surface of the guide member (221) facing the first opening (2111) is a conical arc surface, and the guide member (221) is rotatably connected to the water inlet cylinder (211).

3. The spray element according to claim 1, characterized in that: The spraying element (2) further comprises a connecting assembly, wherein at least a portion of the connecting assembly is located in the water inlet cylinder (211), one end of the connecting assembly is fixedly connected to the water inlet cylinder (211), and the other end is rotatably connected to the water outlet mechanism (22).

4. The spray element according to claim 3, characterized in that: It also includes a flow divider (23), wherein the flow divider (23) is connected to the end of the connection component close to the first opening (2111); Wherein, the end of the diverter (23) facing the first opening (2111) is a conical structure.

5. A paint mist exhaust gas treatment device, characterized in that: Comprising the spray element according to any one of claims 1 to 4; The paint mist exhaust gas treatment device (1) further comprises a filter cartridge (11), the filter cartridge (11) being provided with an air inlet (111) and an air outlet (112), the air outlet (112) being arranged above the air inlet (111); The spraying member (2) is located between the air inlet (111) and the air outlet (112), and the spraying member (2) is used to generate a water curtain in the filter cartridge (11).

6. The paint mist exhaust gas treatment device according to claim 5, characterized in that: The paint mist exhaust gas treatment device (1) further comprises a reversing mechanism (14), wherein the reversing mechanism (14) is located between the air inlet (111) and the air outlet (112), and the reversing mechanism (14) is used to guide the gas along a rotating direction.

7. The paint mist exhaust gas treatment device according to claim 6, characterized in that: The reversing mechanism (14) is provided as one, and the spraying element (2) is located above the reversing mechanism (14); Alternatively, there are at least two reversing mechanisms (14), the two adjacent reversing mechanisms (14) guide the gas in opposite directions, and the spray element (2) is located between the two adjacent reversing mechanisms (14).

8. The paint mist exhaust gas treatment device according to claim 6, characterized in that: The reversing mechanism (14) comprises a reversing blade (141) and a fixing ring (142); the inner side of the reversing blade (141) is connected to the fixing ring (142), and the outer side of the reversing blade (141) is connected to the inner wall of the filter cartridge (11); The reversing blades (141) are arranged obliquely to the axial direction, the reversing blades (141) are arranged in a plurality of pieces, and flow guide gaps are provided between the reversing blades (141).

9. The paint mist exhaust gas treatment device according to claim 5, characterized in that: The air inlet (111) is arranged on the side wall of the filter cartridge (11), and the air outlet (112) is arranged on the top of the filter cartridge (11); A liquid collecting box (15) is provided at the bottom of the filter cartridge (11), and the liquid collecting box (15) is in communication with the filter cartridge (11).

10. The paint mist exhaust gas treatment device according to claim 9, characterized in that: The filter cartridge (11) comprises a guide plate (113), the guide plate (113) being arranged at the bottom of the filter cartridge (11), the guide plate (113) being provided with a liquid outlet (114), and the filter cartridge (11) being connected to the liquid collecting tank (15) through the filter outlet; Wherein, the guide plate (113) is an inverted cone structure.

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