Low-wear stainless steel exhaust hood

Abstract

The utility model discloses a low abrasion stainless steel exhaust hood relates to exhaust hood technical field, including cover body and protection unit, cover body: top surface intercommunication is provided with the connecting pipe, the inside of cover body is equipped with cleaning unit, protection unit: contain installation slot, mounting block, frame, guide vane, honeycomb flow guide plate, support frame and fixed block, the left and right sides of installation slot of cover body are opened, both sides of frame top surface all are fixed with mounting block, the mounting block is inserted with the installation slot of corresponding position correspondence, the inside of frame all is equipped with guide vane, this low abrasion stainless steel exhaust hood, the setting honeycomb flow guide plate can scatter airflow impact, and guide vane simultaneously optimizes airflow path to reduce local abrasion, and the setting wear -resisting coating cooperation antiseize coating can increase exhaust hood abrasion resistance while preventing impurity stick cover, and the setting self -cleaning structure can effectively prevent the problem that artificial cleaning appears inner wall abrasion.

Description

Technical Field

[0001] This utility model relates to the field of exhaust hoods, and in particular to a low-wear stainless steel exhaust hood. Background Technology

[0002] Quartz boats, also known as quartz glass, are special industrial materials made from high-purity silicon dioxide (SiO2, with a purity of 99.999%) through high-temperature melting. They are widely used in semiconductor manufacturing, photovoltaics, chemicals, aerospace, and scientific research. During the processing of quartz boat materials, exhaust hoods are required to remove harmful gases to ensure the health of personnel.

[0003] Traditional stainless steel exhaust hoods suffer from wear and corrosion on the metal surface due to the long-term impact of high-speed airflow carrying particles on the inner wall and guide structure, reducing their service life. Furthermore, the guide plates and filter structures are cumbersome to disassemble and assemble, difficult to clean, and prone to accumulating dust and other particles, affecting exhaust efficiency. Subsequent manual cleaning can also cause wear problems. Therefore, a low-wear stainless steel exhaust hood is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a low-wear stainless steel exhaust hood. The honeycomb guide plate can disperse the airflow impact, while the guide ribs optimize the airflow path to reduce local wear. The wear-resistant coating combined with the anti-stick coating can increase the wear resistance of the exhaust hood while preventing impurities from sticking. The self-cleaning structure can effectively prevent the problem of inner wall wear caused by manual cleaning. It can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-wear stainless steel exhaust hood, comprising a hood body and a protective unit;

[0006] Cover: A connecting pipe is provided on the top surface, and a cleaning unit is provided inside the cover;

[0007] The protective unit comprises a mounting slot, mounting blocks, a frame, flow guide ribs, a honeycomb flow guide plate, a support frame, and fixing blocks. The mounting slots are located on the left and right sides of the cover. Mounting blocks are fixed on both sides of the top surface of the frame. The mounting blocks are inserted into the mounting slots at corresponding positions. Flow guide ribs are evenly distributed inside the frame. There are two support frames, which are fixed on the left and right sides inside the cover, respectively. Fixing blocks are fixed on both sides of the honeycomb flow guide plate. The fixing blocks are inserted into the fixing slots on the bottom surface of the support frame.

[0008] The mounting block is inserted into the mounting slot to install the frame. The guide ribs inside the frame can reduce the vortex wear caused by high-speed airflow. Together with the fixing block inserted into the fixing slot on the bottom of the support frame, the honeycomb guide plate can divide the high-speed airflow into multiple stable laminar flows to reduce the local flow velocity and thus reduce the impact kinetic energy of particles on the wall surface to improve the low wear effect of the stainless steel exhaust hood.

[0009] Furthermore, the protective unit also includes an adjustment groove, a spring, a baffle, a finger groove, an elastic protrusion, and a locking hole. There are two adjustment grooves, which are respectively opened on both sides of the support frame surface. A spring is fixed inside the adjustment groove. The inside of the adjustment groove is slidably connected to the top of the baffle. The outer side of the top of the baffle is connected to the inner end of the spring. The baffle is correspondingly attached to the bottom surface of the support frame. A finger groove is opened on the bottom surface of the baffle. The elastic protrusion is installed inside the mounting groove. The locking hole is opened in the middle of the mounting block surface. The frame can be quickly disassembled and assembled by fixing with the elastic protrusion and the locking hole. The spring and the finger groove push the baffle to unlock, realizing the quick disassembly and replacement of the honeycomb guide plate.

[0010] Furthermore, the cleaning unit includes a distribution pipe, a liquid pump, connecting rods, an annular spray pipe, and a pressurizing nozzle. Connecting rods are fixed to both sides of the top surface of the annular spray pipe, with the top ends of the two connecting rods connected to both sides of the inner top surface of the enclosure. Pressurizing nozzles are threaded onto the spray nozzles on the surface of the annular spray pipe. The liquid pump is fixed to one side of the top surface of the enclosure. The outlet of the liquid pump is connected to one end of the distribution pipe, and the other end of the distribution pipe is connected to the inlet of the annular spray pipe. The input end of the liquid pump is electrically connected to the output end of an external controller. Activating the liquid pump allows the cleaning liquid to pass through the pressurizing nozzles on the surface of the annular spray pipe to rinse the inner wall of the enclosure. This reduces the corrosion caused by corrosive impurities adhering to the inner wall of the enclosure and also solves the problem of easily scratching the inner wall during manual cleaning.

[0011] Furthermore, it also includes fixing clips and filter cotton. There are two fixing clips, which are respectively fixed on both sides of the top surface of the honeycomb guide plate. Filter cotton is snapped into the inside of the two fixing clips. The bottom surface of the filter cotton is attached to the top surface of the honeycomb guide plate. The filter cotton inside the fixing clips can filter impurities in the air to protect the subsequent fan and the inner wall of the cover.

[0012] Furthermore, it also includes a wear-resistant coating and an anti-stick coating. The wear-resistant coating is applied to the inner wall surface of the cover, and the outer side of the wear-resistant coating is covered with an anti-stick coating. The wear-resistant coating is a ceramic coating, and the anti-stick coating is a polytetrafluoroethylene coating. The wear-resistant coating can effectively improve the wear resistance of the inner wall of the cover and also has corrosion resistance. The anti-stick coating can keep the inner wall clean to reduce the adhesion of impurities, thereby reducing the difficulty of cleaning.

[0013] Furthermore, it also includes a plate frame and a record board. The plate frame is fixed to the front side of the cover, and the record board is placed inside the plate frame. The record board inside the plate frame can record information such as maintenance time and replaced parts, so as to realize traceable management of equipment status.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This low-wear stainless steel exhaust hood has the following advantages:

[0015] 1. The frame is installed by inserting the mounting block into the mounting slot. The guide ribs inside the frame can reduce the vortex wear caused by high-speed airflow. Together with the fixing block inserted into the fixing slot on the bottom of the support frame, the honeycomb guide plate divides the high-speed airflow into multiple stable laminar flows to reduce the local flow velocity. In turn, it reduces the impact kinetic energy of particles on the wall and improves the low wear effect of the stainless steel exhaust hood.

[0016] 2. By starting the liquid pump, the cleaning liquid is passed through the pressurized nozzle on the surface of the annular spray pipe to rinse the inner wall of the enclosure. This reduces the corrosion caused by corrosive impurities adhering to the inner wall of the enclosure and solves the problem of easy scratching of the inner wall by manual cleaning.

[0017] 3. The wear-resistant coating can effectively improve the wear resistance of the inner wall of the cover, while also being corrosion-resistant. The non-stick coating can keep the inner wall smooth to reduce the adhesion of impurities, thereby reducing the difficulty of cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the utility model structure.

[0019] Figure 2 This is a schematic diagram of the cleaning unit structure of a utility model.

[0020] Figure 3 This is a schematic diagram of the structure of a utility model protection unit.

[0021] Figure 4 It is a utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the utility model cover.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Cover; 2. Protective unit; 21. Mounting slot; 22. Mounting block; 23. Frame; 24. Guide rib; 25. Honeycomb guide plate; 26. Support frame; 27. Fixing block; 28. Adjustment slot; 29. ​​Spring; 210. Baffle; 211. Finger groove; 212. Elastic protrusion; 213. Locking hole; 3. Cleaning unit; 31. Dispensing pipe; 32. Liquid pump; 33. Connecting rod; 34. Annular nozzle; 35. Pressure boosting nozzle; 4. Connecting pipe; 5. Fixing clamp; 6. Filter cotton; 7. Wear-resistant coating; 8. Anti-stick coating; 9. Plate frame; 10. Recording board. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This embodiment provides a technical solution: a low-wear stainless steel exhaust hood, including a hood body 1 and a protective unit 2;

[0027] Cover 1: A connecting pipe 4 is connected to the top surface. The interior of the cover 1 is equipped with a cleaning unit 3, which includes a liquid distribution pipe 31, a liquid pump 32, a connecting rod 33, an annular spray pipe 34, and a pressurizing nozzle 35. Connecting rods 33 are fixed on both sides of the top surface of the annular spray pipe 34. The top ends of the two connecting rods 33 are respectively connected to the two sides of the top surface inside the cover 1. Pressurizing nozzles 35 are threadedly installed at the spray nozzles on the surface of the annular spray pipe 34. The liquid pump 32 is fixed on one side of the top surface of the cover 1. The outlet of the liquid pump 32 is connected to one end of the liquid distribution pipe 31, and the other end of the liquid distribution pipe 31 is connected to the inlet of the annular spray pipe 34. The input end of the liquid pump 32 is electrically connected to the output end of an external controller. When the liquid pump 32 is started, the cleaning liquid is passed through the pressurizing nozzle 35 on the surface of the annular spray pipe 34 to rinse the inner wall of the cover 1. This reduces the corrosion of the inner wall of the cover 1 by the adhesion of corrosive impurities and solves the problem of easy scratching of the inner wall by manual cleaning.

[0028] Protective Unit 2 includes mounting slots 21, mounting blocks 22, a frame 23, guide ribs 24, a honeycomb guide plate 25, a support frame 26, and fixing blocks 27. Mounting slots 21 are located on the left and right sides of the enclosure 1. Mounting blocks 22 are fixed to both sides of the top surface of the frame 23, and the mounting blocks 22 are inserted into the corresponding mounting slots 21. Guide ribs 24 are evenly distributed inside the frame 23. There are two support frames 26, fixed to the left and right sides inside the enclosure 1 respectively. Fixing blocks 27 are fixed to both sides of the honeycomb guide plate 25, and the fixing blocks 27 are inserted into the fixing slots on the bottom surface of the support frame 26. Mounting blocks 22 are inserted into the mounting slots 21 to install the frame 23. The guide ribs 24 inside the frame 23 can... The high-speed airflow-induced vortex wear, combined with the fixing block 27 inserted into the fixing groove on the bottom surface of the support frame 26, allows the honeycomb guide plate 25 to divide the high-speed airflow into multiple stable laminar flows, thereby reducing the local flow velocity and thus weakening the impact kinetic energy of particles on the wall surface to improve the low-wear effect of the stainless steel exhaust hood. The protective unit 2 also includes an adjustment groove 28, a spring 29, a baffle 210, a finger groove 211, an elastic protrusion 212, and a locking hole 213. There are two adjustment grooves 28, which are respectively opened on both sides of the surface of the support frame 26. The spring 29 is fixed inside the adjustment groove 28. The inside of the adjustment groove 28 is slidably connected to the top of the baffle 210. The outer side of the top of the baffle 210 is connected to the inner end of the spring 29. The baffle 210 and the support frame 26 are connected to each other. The bottom surface of the frame 26 is correspondingly fitted, and the bottom surface of the baffle 210 is provided with a finger groove 211. The elastic protrusion 212 is installed inside the mounting groove 21, and the locking hole 213 is opened in the middle of the surface of the mounting block 22. The frame 23 is quickly disassembled and assembled by fixing it with the elastic protrusion 212 and the locking hole 213. The spring 29 cooperates with the finger groove 211 to push the baffle 210 to unlock, realizing the quick disassembly and replacement of the honeycomb guide plate 25. It also includes a fixing clip 5 and a filter cotton 6. There are two fixing clips 5, which are respectively fixed on both sides of the top surface of the honeycomb guide plate 25. The filter cotton 6 is snapped into the inside of the two fixing clips 5. The bottom surface of the filter cotton 6 is fitted with the top surface of the honeycomb guide plate 25. The filter cotton 6 inside the fixing clip 5 can filter impurities in the air. The system includes a filter to protect the downstream fan and the inner wall of the enclosure 1. It also includes a wear-resistant coating 7 and an anti-stick coating 8. The wear-resistant coating 7 is applied to the inner wall surface of the enclosure 1, and the outer side of the wear-resistant coating 7 is covered with the anti-stick coating 8. The wear-resistant coating 7 is a ceramic coating, and the anti-stick coating 8 is a polytetrafluoroethylene coating. The wear-resistant coating 7 can effectively improve the wear resistance of the inner wall of the enclosure 1 and also has corrosion resistance. The anti-stick coating 8 can keep the inner wall smooth to reduce the adhesion of impurities, thereby reducing the difficulty of cleaning. It also includes a plate frame 9 and a record board 10. The plate frame 9 is fixed to the front side of the enclosure 1, and the record board 10 is placed inside the plate frame 9. The record board 10 inside the plate frame 9 can record information such as maintenance time and replacement parts, so as to realize the traceability management of equipment status.

[0029] The working principle of the low-wear stainless steel exhaust hood provided by this utility model is as follows: First, the connecting pipe 4 is used to connect to the external air duct. The mounting block 22 is inserted into the mounting groove 21 to install the frame 23. The elastic protrusion 212 is inserted into the locking hole 213 to fix the frame 23. The guide ribs 24 inside the frame 23 can reduce the eddy current wear caused by the high-speed airflow. The fixing block 27 is inserted into the fixing groove on the bottom surface of the support frame 26 to install the honeycomb guide plate 25. The spring 29 rebounds and causes the baffle 210 to cover the bottom surface of the fixing block 27 to prevent it from falling off. In this way, the high-speed airflow is divided into multiple stable laminar flows to reduce local wear. The flow rate is reduced, thereby weakening the impact kinetic energy of particles on the wall surface and improving the low-wear effect of the stainless steel exhaust hood. The wear-resistant coating 7 can effectively improve the wear resistance of the inner wall of the hood 1, and also has corrosion resistance. The anti-stick coating 8 can keep the inner wall smooth to reduce the adhesion of impurities, thereby reducing the difficulty of cleaning. When cleaning is required, the frame 23 and honeycomb guide plate 25 are removed, and the liquid pump 32 is started to flush the inner wall of the hood 1 through the pressurized nozzle 35 on the surface of the annular spray pipe 34. This reduces the corrosion of the inner wall of the hood 1 by the adhesion of corrosive impurities, and solves the problem of easy scratching of the inner wall by manual cleaning.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-wear stainless steel exhaust hood, comprising a hood body (1) and a protective unit (2), characterized in that: Cover (1): A connecting pipe (4) is provided on the top surface, and a cleaning unit (3) is provided inside the cover (1); The protective unit (2) includes a mounting slot (21), a mounting block (22), a frame (23), a flow guide rib (24), a honeycomb flow guide plate (25), a support frame (26), and a fixing block (27). The mounting slot (21) is opened on the left and right sides of the cover (1). The mounting blocks (22) are fixed on both sides of the top surface of the frame (23). The mounting blocks (22) are inserted into the mounting slots (21) at the corresponding positions. The flow guide ribs (24) are evenly arranged inside the frame (23). There are two support frames (26) and they are fixed on the left and right sides inside the cover (1). The fixing blocks (27) are fixed on both sides of the honeycomb flow guide plate (25). The fixing blocks (27) are inserted into the fixing slots on the bottom surface of the support frame (26).

2. The low-wear stainless steel exhaust hood according to claim 1, characterized in that: The protective unit (2) also includes an adjustment groove (28), a spring (29), a baffle (210), a finger groove (211), an elastic protrusion (212), and a locking hole (213). There are two adjustment grooves (28) and they are respectively opened on both sides of the surface of the support frame (26). The spring (29) is fixed inside the adjustment groove (28). The inside of the adjustment groove (28) is slidably connected to the top of the baffle (210). The outer side of the top of the baffle (210) is connected to the inner end of the spring (29). The baffle (210) is in contact with the bottom surface of the support frame (26). The bottom surface of the baffle (210) is provided with a finger groove (211). The elastic protrusion (212) is installed inside the mounting groove (21). The locking hole (213) is opened in the middle of the surface of the mounting block (22).

3. The low-wear stainless steel exhaust hood according to claim 1, characterized in that: The cleaning unit (3) includes a liquid distribution pipe (31), a liquid pump (32), a connecting rod (33), an annular nozzle (34), and a booster nozzle (35). The top surfaces of the annular nozzle (34) are fixed with connecting rods (33) on both sides. The top ends of the two connecting rods (33) are respectively connected to the two sides of the inner top surface of the cover (1). The liquid nozzle (35) is threadedly installed at the liquid outlet on the surface of the annular nozzle (34). The liquid pump (32) is fixed on one side of the top surface of the cover (1). The outlet of the liquid pump (32) is connected to one end of the liquid distribution pipe (31), and the other end of the liquid distribution pipe (31) is connected to the inlet of the annular nozzle (34). The input end of the liquid pump (32) is electrically connected to the output end of an external controller.

4. The low-wear stainless steel exhaust hood according to claim 1, characterized in that: It also includes a fixing clip (5) and a filter cotton (6). There are two fixing clips (5) and they are fixed on both sides of the top surface of the honeycomb guide plate (25). The filter cotton (6) is snapped into the inside of the two fixing clips (5). The bottom surface of the filter cotton (6) is in contact with the top surface of the honeycomb guide plate (25).

5. A low-wear stainless steel exhaust hood according to claim 1, characterized in that: It also includes a wear-resistant coating (7) and an anti-stick coating (8). The wear-resistant coating (7) is coated on the inner wall surface of the cover (1), and the outer side of the wear-resistant coating (7) is covered with an anti-stick coating (8). The wear-resistant coating (7) is a ceramic coating, and the anti-stick coating (8) is a polytetrafluoroethylene coating.

6. The low-wear stainless steel exhaust hood according to claim 1, characterized in that: It also includes a frame (9) and a recording board (10), the frame (9) being fixed to the front side of the cover (1), and the recording board (10) being placed inside the frame (9).

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