Adjustable suspension side draft exhaust hood

Abstract

The utility model discloses an adjustable suspension side suction type exhaust hood relates to exhaust hood technical field, including workshop, the inside of workshop is provided with work table, work table is used for providing support effect, the distance ground 0.75m, work table above 0.24m is the lower edge of suspension side suction type exhaust hood, the cover body length and width are 0.9m*0.6m, the cover body cover mouth and work table mesa angle are 45 degrees, four corners of cover body are connected lock dry, and the fixed device is fixed in workshop top, the top of cover body is provided with air valve and exhaust port, the air valve sets up in the exhaust port of cover body, can control the exhaust volume of entering exhaust port, the exhaust pipe sets up at the top of cover body, the diameter of exhaust pipe is 0.18m, connects exhaust port and treater. This adjustable suspension side suction type exhaust hood avoids the problem that the application range is limited due to the traditional exhaust hood is fixed on the desktop, especially applicable to the post that organic solvent cleans larger workpiece and workpiece moves in small range (1m) real -time, improves the flexibility and trapping efficiency of local ventilation.

Description

Technical Field

[0001] This utility model relates to the field of exhaust hood technology, specifically an adjustable suspended side-suction exhaust hood. Background Technology

[0002] External exhaust hoods are commonly classified as top-suction exhaust hoods, side-suction exhaust hoods, and bottom-suction exhaust hoods. Side-suction exhaust hoods are generally fixed in a fixed location (such as a workbench) and are not suitable for positions where organic solvents are used to clean large workpieces and the workpieces move in real time within a small range (1m).

[0003] However, existing exhaust hoods cannot effectively remove odors or harmful gases that evaporate from reagents stored inside the cabinet during use, which can pollute the workplace air and endanger workers' safety.

[0004] To address the aforementioned deficiencies, Chinese Patent CN218108802U discloses a downdraft fume hood, comprising a lower cabinet, an upper cabinet, an inner back panel, and a baffle plate. The lower cabinet has a downdraft opening on its back panel; the upper cabinet has an operating platform at the bottom of its inner chamber, and an updraft opening on its back panel. The updraft and downdraft openings are connected by a duct. An exhaust vent is located on the top panel of the upper cabinet. The bottom edge of the inner back panel is positioned above the operating platform. The baffle plate is located below the exhaust vent, and the baffle plate, inner back panel, and upper cabinet back panel form an exhaust channel. The updraft opening is located within this exhaust channel, effectively and promptly expelling odors or trace amounts of hazardous gases emitted from reagents inside the lower cabinet to the outside, ensuring the safety of the laboratory environment and personnel.

[0005] The exhaust hood of the above-mentioned device is generally fixed on the table during use. It is not suitable for positions where organic solvents are used to clean large workpieces and the workpieces move in real time within a small range (1m). Its exhaust effect is limited to a certain extent by the structure of the device itself. It cannot achieve efficient exhaust for organic gaseous toxic substances generated when cleaning some special-shaped or large-sized workpieces with organic solvents. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustable suspended side-suction exhaust hood to solve the problem mentioned in the background art that exhaust hoods are not suitable for cleaning large workpieces with organic solvents and where the workpieces move in real time within a small range (1m), and cannot efficiently capture and discharge volatile organic gaseous toxins generated during the workplace cleaning process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable suspended side-suction exhaust hood, comprising a workshop, wherein a workbench is provided on the inner side of the workshop, the workbench is used to provide support, and is 0.75m above the ground, which facilitates assembly line operations and cleaning of workpieces with organic solvents, and conforms to the principles of ergonomic design.

[0008] Furthermore, the workshop interior is equipped with a cover, the lower edge of which is 0.24m from the workbench. The cover measures 0.9m in length and 0.6m in width, and the angle between the cover opening and the workbench surface is 45 degrees. The top surface of the cover is equipped with an air valve and an exhaust vent. The air valve, located at the exhaust vent, controls the amount of air entering the vent. The exhaust vent connects the cover to the exhaust pipe. The exhaust pipe, 0.18m in diameter, is located at the top of the cover and connects the exhaust vent to a processor. The processor connects the exhaust pipe to a fan. The fan provides power with a rated power of 11kW.

[0009] Furthermore, the cover is made of galvanized iron sheet, which has the characteristics of wear resistance, oxidation resistance, aesthetics and durability.

[0010] Furthermore, the exhaust duct leads to a processor located outside the workshop.

[0011] Furthermore, the top of the workshop is equipped with a fixing device, which hangs down and is fixedly connected to the four corners of the cover by adjustable locking mechanisms.

[0012] Furthermore, a processor is installed at the end of the workshop away from the enclosure, and the processor is used to process organic gaseous toxic substances.

[0013] Furthermore, a fan is provided on one side of the processor, and the processor and the fan are connected by an exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The adjustable suspended side-suction exhaust hood avoids the problem of limited applicability caused by the traditional exhaust hood being fixed on the table through its suspended design. It is especially suitable for positions where organic solvents are used to clean larger workpieces and the workpieces move in real time within a small range (1m), thus improving the flexibility and effectiveness of local ventilation. (2) The angle between the cover opening and the workbench surface is designed at 45 degrees. With reasonable dimensions (length and width are 0.9m*0.6m), it can more effectively capture and expel volatile organic gaseous toxins generated when cleaning workpieces with organic solvents, reduce the concentration of occupational hazard factors in the workplace, and protect the health of workers. (3) The diameter of the exhaust pipe is designed to be 0.18m, which ensures the efficiency of exhaust and avoids the increase in cost and space occupation caused by excessively large pipe diameter; (4) The configuration of the processor and the fan enables the exhaust system to process organic gaseous toxins more efficiently, and the fan provides power to ensure the continuity and stability of the exhaust. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the wall of this utility model; Figure 3 This is a schematic diagram of the three-dimensional structure of the cover of this utility model; Figure 4 This is a three-dimensional structural diagram of the fixing device of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the exhaust pipe of this utility model; Figure 6 This is a three-dimensional structural diagram of the processor of this utility model.

[0016] In the diagram: 1. Workshop; 2. Workbench; 3. Fixture; 4. Cover; 5. Exhaust vent; 6. Exhaust pipe; 7. Processor; 8. Fan; 9. Air valve; 10. Lock. Detailed Implementation

[0017] 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.

[0018] Example 1: Please refer to Figure 1 - Figure 2 The present invention provides the following technical solution: an adjustable suspended side-suction exhaust hood, including a workshop 1, with a workbench 2 provided on the inner side of the workshop 1. The workbench 2 is used to provide support and is 0.75m above the ground, which facilitates assembly line operations and cleaning with organic solvents, and conforms to the ergonomic design principle.

[0019] This adjustable, suspended side-suction exhaust hood effectively addresses ventilation needs in work areas where workpieces are cleaned with organic solvents and move within a small area (1m). In practical use, the hood opening (4) forms a 45-degree angle with the workbench (2), effectively capturing and absorbing volatile organic compounds released from the workpiece surface after cleaning with organic solvents. This does not interfere with the assembly line operation on the workbench (2). The workbench (2) is 0.75m above the ground, ergonomically designed to suit worker height, facilitating operation. The fixing device (3) is securely connected to the hood (4) via an adjustable locking mechanism (10). This connection is stable and reliable, ensuring the hood (4) will not detach due to vibration or external force during use. Adjusting the locking mechanism (10) allows for easy adjustment of the hood's position and angle. The hood (4) is made of galvanized iron, offering wear resistance, oxidation resistance, and durability, significantly extending its lifespan and reducing replacement costs. The lower edge of the hood (4) is positioned close to the workbench (2). The height of 0.24m is reasonable, ensuring good ventilation without interfering with workers' work.

[0020] Example 2: Based on Example 1, please refer to... Figure 2 - Figure 6 The enclosure 4 was also disclosed, and its specific structure is as follows: The enclosure 4 is installed inside the workshop 1. The lower edge of the enclosure 4 is 0.24m away from the workbench 2. The length and width of the enclosure 4 are 0.9m*0.6m. The opening of the enclosure 4 forms a 45-degree angle with the workbench 2. The top surface of the enclosure 4 is equipped with an air valve 9 and an exhaust port 5. The air valve 9 is located at the exhaust port 5 of the enclosure 4 and can control the exhaust volume entering the exhaust port 5. The exhaust port 5 is installed on the top surface of the enclosure 4 and is used to connect the enclosure 4 and the exhaust pipe 6. The exhaust pipe 6 is located at the top of the enclosure 4. The diameter of the exhaust pipe 6 is 0.18m and it connects the exhaust port 5 and the processor 7. The processor 7 is used to connect the exhaust pipe 6 and the fan 8. The fan 8 is used to provide power and has a rated power of 11kW. The enclosure 4 is made of galvanized iron sheet material, which has the characteristics of wear resistance, oxidation resistance, beauty and durability. The exhaust pipe 6 leads to the outside of the workshop 1 where the processor 7 is located.

[0021] The exhaust pipe 6 is located on the inner side of workshop 1, and the diameter of the exhaust pipe 6 is 0.18m. The exhaust pipe 6 is a bamboo joint pipe. This design makes the exhaust process smoother and reduces the resistance of the gas in the pipe. The outer surface of the exhaust pipe 6 is equipped with a processor 7. The processor 7 is used to process organic gaseous toxic substances and can effectively purify the exhaust gas and reduce the pollution to the environment. The control distance of the cover 4 is 0.6m and the control wind speed is 0.52m / s. When in use, the cleaning position (quality control position) uses cyclohexane. According to GBZ / T 300.65-2017 (4) "Determination of Toxic Substances in Workplace Air Part 65: Cyclohexane and Methylcyclohexane", an activated carbon tube is used to collect air samples for 1 hour at 50mL / min. The concentration of cyclohexane detected in the air is <1.1mg / m 3 It meets the time-weighted average permissible concentration requirement for cyclohexane (250 mg / m³). 3 Air samples were collected for 15 minutes at a rate of 100 mL / min using activated carbon tubes. The concentration of cyclohexane in the air was <2.1 mg / m³. 3 It meets the peak contact concentration requirement for cyclohexane (750 mg / m³). 3 This indicates that the exhaust hood can effectively capture and expel organic gaseous toxins from the air, thereby ensuring that the organic gaseous toxins in the air are effectively captured without affecting the production process, ensuring smooth airflow, and preventing organic gaseous toxins that escape into the air during cleaning from passing through the workers' breathing zone, thus protecting the workers' health.

[0022] Example 3: Based on Example 1, please refer to... Figure 3 - Figure 6 The processor 7 was also disclosed, and its specific structure is as follows: a fixing device 3 is set on the top of the workshop 1. The fixing device 3 hangs down and is fixedly connected to the four corners of the cover 4 through adjustable locks 10. The processor 7 is set at the end of the workshop 1 away from the cover 4. The processor 7 is used to process organic gaseous toxic substances. A fan 8 is set on one side of the processor 7. The processor 7 and the fan 8 are connected through an exhaust pipe 6.

[0023] By placing the processor 7 at the end of workshop 1 away from the enclosure 4, this layout not only makes reasonable use of space but also prevents the processor 7 from being affected by the complex airflow near the enclosure 4 when handling organic gaseous toxins, thus ensuring the treatment effect. The processor 7 is connected to the fan 8 through the exhaust pipe 6, which facilitates replacement when the processor 7 is no longer needed. With the rated power of 11kW of the fan 8, it provides strong power support for the entire process of organic gaseous toxins entering the processor 7 from the enclosure 4 through the exhaust pipe 6 and then being discharged to the outside, ensuring that the exhaust system can operate continuously, stably and efficiently. This effectively improves the workplace environment for cleaning workpieces with organic solvents and for workpieces that move in real time within a small range (1m), thus protecting the health of workers.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable suspended side-suction exhaust hood, comprising a workshop (1), wherein a workbench (2) is provided on the inner side of the workshop (1), characterized in that: The workbench (2) is used to provide support and is 0.75m above the ground, which facilitates workers to carry out assembly line operations and clean workpieces with organic solvents, in accordance with the principles of ergonomic design. The workshop (1) is equipped with a cover (4). The lower edge of the cover (4) is 0.24m away from the workbench (2). The length and width of the cover (4) are 0.9m and 0.6m. The angle between the opening of the cover (4) and the workbench (2) is 45 degrees. The top surface of the cover (4) is provided with a wind valve (9) and an exhaust port (5). The wind valve (9) is located at the exhaust port (5) of the cover (4) and can control the amount of exhaust air entering the exhaust port (5). The top surface of the cover (4) is provided with an exhaust port (5), which is used to connect the cover (4) and the exhaust pipe (6). The exhaust pipe (6) is located at the top of the cover (4), and the exhaust pipe (6) has a diameter of 0.18m and connects the exhaust port (5) and the processor (7). The processor (7) is used to connect the exhaust pipe (6) and the fan (8); The fan (8) is used to provide power and has a rated power of 11kW.

2. The adjustable suspended side-suction exhaust hood according to claim 1, characterized in that: The cover (4) is made of galvanized iron sheet.

3. An adjustable suspended side-suction exhaust hood according to claim 1, characterized in that: The exhaust pipe (6) leads to the outside of the workshop (1) where a processor (7) is installed.

4. An adjustable suspended side-suction exhaust hood according to claim 1, characterized in that: The top of the workshop (1) is provided with a fixing device (3), which hangs down and is fixedly connected to the four corners of the cover (4) by adjustable locks (10).

5. An adjustable suspended side-suction exhaust hood according to claim 1, characterized in that: A processor (7) is provided at one end of the workshop (1) away from the cover (4), and the processor (7) is used to process organic gaseous toxic substances.

6. An adjustable suspended side-suction exhaust hood according to claim 1, characterized in that: A fan (8) is provided on one side of the processor (7), and the processor (7) and the fan (8) are connected by an exhaust pipe (6).

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