Medium-efficiency anti-explosion exhaust fan box

Abstract

The utility model provides a medium-efficiency explosion-proof exhaust fan box, which belongs to the technical field of fan boxes, and comprises a fan box main body, the medium-efficiency filtering section comprises a filtering box and a filtering bag, the filtering box is fixedly connected into the fan box main body, and the filtering bag is fixedly connected to the surface of the filtering box; the fan main body is connected into the fan box main body, and the fan main body is connected with the filter bag; the air outlet is fixedly connected into the fan box main body, and the air outlet is connected with the fan main body; through the sliding design of the sliding frame and the filter box, the filter plate is convenient to replace, the replacement speed of the filter plate is increased, and the maintenance time is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of fan box technology, specifically relating to a medium-efficiency explosion-proof exhaust fan box. Background Technology

[0002] The medium-efficiency explosion-proof exhaust fan enclosure is a device specifically designed for safe and effective ventilation and exhaust in environments where flammable and explosive gases or dust may be present. It combines high-efficiency ventilation performance with stringent explosion-proof safety measures to ensure safety and reliability in hazardous environments. The enclosure is constructed from robust and durable materials, such as galvanized steel or stainless steel, offering excellent corrosion resistance and impact resistance. Its carefully designed internal structure effectively guides airflow, reduces resistance, and improves ventilation efficiency. Simultaneously, the enclosure is equipped with a high-efficiency filtration system that effectively filters impurities and harmful substances from the air, ensuring that the exhaust air meets environmental standards. For explosion protection, the medium-efficiency explosion-proof exhaust fan enclosure employs a special explosion-proof structure and electrical equipment, such as explosion-proof motors, explosion-proof switches, and explosion-proof lighting, ensuring that no electrical sparks or high temperatures are generated in flammable and explosive environments, thereby preventing explosions. Furthermore, the enclosure is equipped with multiple safety protection devices, such as overload protection, leakage protection, and overheat protection, further enhancing the safety and reliability of the equipment. Medium-efficiency explosion-proof exhaust fan boxes are widely used in hazardous locations such as petrochemical plants, gas stations, paint factories, pharmaceutical factories, and flour mills where flammable and explosive gases or dust may be present. They provide safe and reliable ventilation and exhaust solutions for these locations, effectively ensuring the safety of personnel and equipment.

[0003] Authorization announcement number "CN204973359U" describes "a medium-efficiency explosion-proof exhaust fan box," comprising an air inlet, a maintenance section, filter bags, a medium-efficiency filtration section, a fan section, a fan, and an exhaust outlet. The maintenance section, medium-efficiency filtration section, and fan section constitute the main body of the box. The medium-efficiency filtration section contains filter bags, with the filter bags' air inlets installed between the maintenance section and the medium-efficiency filtration section. An air inlet is located on the end face of the maintenance section. The fan section contains a fan, and the fan's output end is connected to the exhaust outlet. This invention, by installing a fan at the exhaust outlet, generates negative pressure against the filter bags, filtering the gas and separating the fan from the dust-laden gas. This prevents explosions caused by static electricity or friction from fan rotation in dust-saturated air, thus enhancing safety.

[0004] In the existing technology, the components used for filtration in medium-efficiency explosion-proof exhaust fan boxes are usually fixedly connected to the box. With long-term use of the fan box, the filter plates need to be replaced regularly. However, the fixed structure makes it inconvenient to disassemble the filter plates, increasing maintenance costs and time. Utility Model Content

[0005] The purpose of this utility model is to provide a medium-efficiency explosion-proof exhaust fan box, which aims to solve the problem that the filter components used in the existing medium-efficiency explosion-proof exhaust fan box are usually fixedly connected to the box body. Under long-term use, the filter plates need to be replaced regularly, but the fixed structure makes it inconvenient to disassemble the filter plates, which increases maintenance costs and time.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A medium-efficiency explosion-proof exhaust fan enclosure, comprising:

[0008] Fan box body

[0009] The medium-efficiency filtration section includes a filter box and filter bags. The filter box is fixedly connected inside the main body of the fan box, and the filter bags are fixedly connected to the surface of the filter box.

[0010] The fan body is connected inside the fan box body and is connected to the filter bag;

[0011] An exhaust vent is fixedly connected inside the fan housing body and is connected to the fan body.

[0012] A filter assembly is disposed inside a filter box. The filter assembly includes a sliding frame, tracks, and filter plates. Multiple tracks and filter plates are provided. The sliding frame is slidably connected to the filter box and the main body of the fan box. Multiple tracks are fixedly connected to the lower inner wall of the sliding frame. Multiple filter plates are slidably connected to multiple tracks respectively.

[0013] In a preferred embodiment of this utility model, the inner wall of the sliding frame is fixedly connected to two limiting rods, and the circumferential surfaces of the two limiting rods are slidably connected to push plates.

[0014] As a preferred embodiment of this utility model, the surfaces of the sliding frame and the push plate are provided with positioning grooves, and a positioning plate is slidably connected in the positioning grooves.

[0015] As a preferred embodiment of this utility model, an air inlet is provided on one side of the main body of the fan box, the air inlet is connected to the inside of the filter box, and a support leg is fixedly connected to the lower end of the main body of the fan box.

[0016] As a preferred embodiment of this utility model, two L-shaped plates are fixedly connected to the surface of the main body of the fan box, and a sliding frame is slidably connected to the surface of the two L-shaped plates.

[0017] As a preferred embodiment of this utility model, a fixing block is fixedly connected to the surface of the fan box body, a sliding plate is slidably connected inside the fixing block, the sliding plate is connected to the surface of the sliding frame, a sliding rod is slidably connected inside the fixing block, the sliding rod is fixed to the sliding plate, one end of the sliding rod movably passes through the surface of the fixing block and extends outward, a second handle is fixedly connected to the extended end of the fixing block, a spring is fixedly connected inside the fixing block, and the spring is fixed to the surface of the sliding rod.

[0018] In a preferred embodiment of this utility model, a first handle is fixedly connected to the surface of the sliding frame.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this solution, the sliding design of the sliding frame and the filter box facilitates the replacement of the filter plates, improves the replacement speed of the filter plates, and reduces maintenance time.

[0021] 2. In this design, the sliding plate moves towards the surface of the sliding frame under the action of the spring force. At this time, the sliding frame cannot be pulled out from the main body of the fan box, thus improving the stability of the sliding frame during installation. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a first-view perspective perspective view of the present invention;

[0024] Figure 2 This is a second-view perspective perspective view of the present invention;

[0025] Figure 3 This is a cross-sectional view of the present invention;

[0026] Figure 4 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0027] In the diagram: 1. Main body of the fan box; 2. Exhaust outlet; 3. Main body of the fan; 4. Filter bag; 5. Filter box; 6. Air inlet; 7. Track; 8. Filter plate; 9. Push plate; 10. Limiting rod; 11. Positioning plate; 12. Fixing block; 13. Slide plate; 14. First handle; 15. Second handle; 16. Support leg; 17. Sliding frame. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figures 1-4 The present invention provides the following technical solution:

[0031] A medium-efficiency explosion-proof exhaust fan enclosure, comprising:

[0032] Fan box body 1

[0033] The medium-efficiency filtration section includes a filter box 5 and a filter bag 4. The filter box 5 is fixedly connected inside the main body 1 of the fan box, and the filter bag 4 is fixedly connected to the surface of the filter box 5.

[0034] The fan body 3 is connected inside the fan box body 1, and the fan body 3 is connected to the filter bag 4;

[0035] Exhaust port 2 is fixedly connected inside the fan box body 1 and is connected to the fan body 3.

[0036] The filter assembly is located inside the filter box 5. The filter assembly includes a sliding frame 17, a track 7, and filter plates 8. Multiple tracks 7 and multiple filter plates 8 are provided. The sliding frame 17 is slidably connected to the filter box 5 and the main body of the fan box 1. Multiple tracks 7 are fixedly connected to the lower inner wall of the sliding frame 17. Multiple filter plates 8 are slidably connected to multiple tracks 7 respectively.

[0037] In a specific embodiment of this utility model, the filter box 5 and filter bag 4 inside the fan body 1 form a medium-efficiency filtration section. This section filters dust from the air, preventing an explosion caused by dust reacting with static electricity generated during the operation of the fan body 3. The fan body 3 outputs air through the exhaust port 2. The filter assembly filters the air; air enters the filter box 5 from the air inlet 6, is filtered by the filter plate 8, and is further filtered by the pleated structure inside the filter bag 4. The filtered air is then input into the fan body 3. The sliding... The frame 17 slides within the filter box 5. Multiple tracks 7 are installed within the sliding frame 17, and the filter plates 8 slide within the tracks 7. Air is filtered after passing through the filter plates 8. Over time, dust accumulates on the surface of the filter plates 8. By pulling the sliding frame 17 out of the filter box 5 and the main body of the fan box 1, it is easy to replace the filter plates 8. The push plate 9 is used to position multiple filter plates 8, improving the stability of the filter plate installation. The sliding design of the sliding frame 17 and the filter box 5 facilitates the replacement of the filter plates 8, increases the replacement speed of the filter plates 8, and reduces maintenance time.

[0038] Please refer to the details. Figures 1-4 The inner wall of the sliding frame 17 is fixedly connected to two limiting rods 10, and the circumferential surfaces of the two limiting rods 10 are slidably connected to push plates 9.

[0039] In this embodiment: the limiting rod 10 is fixedly connected to the inner wall of the sliding frame 17, and the push plate 9 slides on the circumferential surface of the two limiting rods 10. When the push plate 9 slides to one side of the surface of the limiting rod 10, the push plate 9 contacts the surface of the filter plate 8 and positions the filter plate 8.

[0040] Please refer to the details. Figures 1-4 The surfaces of the sliding frame 17 and the push plate 9 are provided with positioning grooves, and the positioning plate 11 is slidably connected in the positioning grooves.

[0041] In this embodiment: when the push plate 9 contacts the surface of the filter plate 8, the positioning plate 11 slides into the positioning groove. At this time, the push plate 9 can no longer slide, thus positioning the push plate 9.

[0042] Please refer to the details. Figures 1-4 An air inlet 6 is provided on one side of the main body 1 of the fan box. The air inlet 6 is connected to the filter box 5. A support leg 16 is fixedly connected to the lower end of the main body 1 of the fan box.

[0043] In this embodiment: the air inlet 6 is connected to the filter box 5, and the air moves to the filter bag 4 through the air inlet 6.

[0044] Please refer to the details. Figures 1-4 Two L-shaped plates are fixedly connected to the surface of the main body 1 of the fan box, and a sliding frame 17 is slidably connected to the surface of the two L-shaped plates.

[0045] In this embodiment, the L-shaped plate is used for sliding the sliding frame 17 to improve the stability of the sliding frame 17 during sliding.

[0046] Please refer to the details. Figures 1-4 A fixing block 12 is fixedly connected to the surface of the fan box body 1. A sliding plate 13 is slidably connected inside the fixing block 12. The sliding plate 13 is connected to the surface of the sliding frame 17. A sliding rod is slidably connected inside the fixing block 12. The sliding rod is fixed to the sliding plate 13. One end of the sliding rod moves through the surface of the fixing block 12 and extends outward. A second handle 15 is fixedly connected to the extended end of the fixing block 12. A spring is fixedly connected inside the fixing block 12. The spring is fixed to the surface of the sliding rod.

[0047] In this embodiment: the slide plate 13 moves toward the surface of the sliding frame 17 under the action of the spring force. At this time, the sliding frame 17 cannot be pulled out from the fan box body 1. When it is necessary to pull the sliding frame 17 out from the fan box body 1, the second handle 15 is pulled to drive the slide rod to move. The slide rod drives the slide plate 13 to disengage from the surface of the sliding frame 17. During this process, the spring is compressed in the fixed block 12.

[0048] Please refer to the details. Figures 1-4 The surface of the sliding frame 17 is fixedly connected to the first handle 14.

[0049] In this embodiment: the first handle 14 facilitates the sliding of the frame 17 out of the fan box body 1.

[0050] It should be noted that the fan body 3 used in this solution is existing technology. The specific model of fan body 3 to be used needs to be selected according to actual requirements, which will not be elaborated on here.

[0051] The working principle and usage process of this utility model are as follows: When using this device, the exhaust port 2 is connected to the equipment. Through the operation of the fan body 3, air is input from the air inlet 6 into the fan box body 1. After being filtered by the filter box 5 and filter bag 4, the air is controlled to enter the fan body 3. The air is powered by the fan body 3 and delivered to the equipment through the exhaust port 2. After long-term use, dust accumulates on the surface of the filter plate 8. By pulling the sliding frame 17 out of the filter box 5 and the fan box body 1, it is easy to replace the filter plate 8. The push plate 9 is used to position multiple filter plates 8, improving the stability of the filter plate 8 installation. The sliding design of the sliding frame 17 and the filter box 5 facilitates the replacement of the filter plate 8, increases the replacement speed of the filter plate 8, and reduces maintenance time.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A medium efficiency explosion-proof exhaust fan cabinet, characterized by, Include: Fan box body (1) The medium efficiency filter section, the medium efficiency filter section includes filter box (5) and filter bag (4), the filter box (5) is fixedly connected in the fan box body (1), the filter bag (4) is fixedly connected to the surface of filter box (5); Fan body (3), the fan body (3) is connected in the fan box body (1), the fan body (3) is connected with filter bag (4); Air outlet (2), the air outlet (2) is fixedly connected in the fan box body (1), the air outlet (2) is connected with fan body (3); Filter assembly, the filter assembly is located in filter box (5), the filter assembly includes sliding frame (17), track (7) and filter plate (8), the track (7) and filter plate (8) are all provided with multiple, the sliding frame (17) is slidingly connected in filter box (5) and fan box body (1), multiple track (7) are all fixedly connected to the lower inner wall of sliding frame (17), multiple filter plate (8) are slidingly connected in multiple track (7).

2. A medium efficiency explosion-proof exhaust fan housing according to claim 1, wherein: The inner wall of the sliding frame (17) is fixedly connected with two limit rods (10), the circumferential surface of the two limit rods (10) is slidingly connected with a push plate (9).

3. A medium efficiency explosion-proof exhaust fan housing according to claim 2, wherein: The surface of the sliding frame (17) and the push plate (9) is provided with a positioning groove, and the positioning groove is slidingly connected with a positioning plate (11).

4. A medium efficiency explosion-proof exhaust fan housing according to claim 3, wherein: One side end of the fan box body (1) is provided with an air inlet (6), the air inlet (6) is connected in the filter box (5), and the lower end of the fan box body (1) is fixedly connected with a supporting leg (16).

5. A medium efficiency explosion-proof exhaust fan cabinet as defined in claim 4, wherein: The surface of the fan box body (1) is fixedly connected with two L-shaped plates, and the surface of the two L-shaped plates is slidingly connected with a sliding frame (17).

6. A medium efficiency explosion-proof exhaust fan cabinet as defined in Claim 5, wherein: The surface of the fan box body (1) is fixedly connected with a fixed block (12), the fixed block (12) is slidingly connected with a sliding plate (13), the sliding plate (13) is connected with the surface of the sliding frame (17), the fixed block (12) is slidingly connected with a sliding rod, the sliding rod is fixed with the sliding plate (13), one end of the sliding rod is movably penetrated through the surface of the fixed block (12) and extends outward, the extending end of the fixed block (12) is fixedly connected with a second handle (15), the fixed block (12) is fixedly connected with a spring, and the spring is fixed with the surface of the sliding rod.

7. A medium efficiency explosion-proof exhaust fan cabinet as defined in claim 6 wherein: The surface of the sliding frame (17) is fixedly connected with a first handle (14).

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