Positive pressure ventilation explosion-proof cabinet

Abstract

The utility model relates to the technical field of explosion-proof cabinets, and provides a positive pressure ventilation explosion-proof cabinet which comprises a box body, a ventilation box is welded to the top of the outer wall of one side of the box body, an air blower is installed in the ventilation box, the outer wall of one side of the ventilation box is connected with a ventilation pipe, one end of the ventilation pipe is communicated with the interior of the ventilation box, and the other end of the ventilation pipe is communicated with the air blower. An annular plate is welded to the other end of the ventilation pipe, the other end of the ventilation pipe is sleeved with a first filter cylinder, springs are welded to the periphery of the top of the inner wall of the first filter cylinder, and the bottoms of the springs are connected with the top end face of the annular plate in an attached mode. According to the positive pressure ventilation explosion-proof cabinet, air can be guided into the box body through the air blower, the ventilation effect of equipment can be improved, entering air can be filtered through the first filter element, the second filter element and the third filter element, the air filtering effect can be improved through the multiple layers of filter elements, and dust entering the box body is reduced; and stored articles are prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof cabinets, and in particular to a positive pressure ventilation explosion-proof cabinet. Background Art

[0002] Explosion-proof cabinets are designed to solve the problem of safe handling and storage. They are often needed when storing explosive and dangerous goods.

[0003] A Chinese patent discloses an explosion-proof cabinet with the publication number CN218770695U. The patent states that the cabinet "comprises: a cabinet body, the cabinet body comprises a plurality of box components to form an installation space; the box components comprise side panels, a back panel, a cabinet door and a cabinet top panel, the cabinet top panel is detachable, and the upper surfaces of the side panels and the back panel are provided with installation cavities." However, the ventilation effect of the equipment is average, and it is unable to filter impurities and dust in the air, which easily contaminates the stored items. Therefore, it is very necessary to design a positive pressure ventilation explosion-proof cabinet. Utility Model Content

[0004] The purpose of the utility model is to provide a positive pressure ventilation explosion-proof cabinet, which solves the problem in the related art that the ventilation effect is general during use, impurities and dust in the air cannot be filtered, and stored items are easily contaminated.

[0005] The technical solution of the utility model is as follows:

[0006] A positive pressure ventilation explosion-proof cabinet comprises a box body, a ventilation box is welded to the top of one side outer wall of the box body, and a blower is installed inside the ventilation box, a ventilation pipe is connected to the outer wall of one side of the ventilation box, and one end of the ventilation pipe is connected to the interior of the ventilation box, and an annular plate is welded to the other end of the ventilation pipe, a first filter cartridge is sleeved on the other end of the ventilation pipe, and springs are welded around the top of the inner wall of the first filter cartridge, the bottom of the spring is fit-connected to the top end face of the annular plate, a first filter core is clamped inside the first filter cartridge, a second filter cartridge is provided below the bottom of the first filter cartridge, and a second filter core is clamped inside the second filter cartridge, a third filter cartridge is provided below the bottom of the second filter cartridge, and a third filter core is clamped inside the third filter cartridge.

[0007] Preferably, a sealing plate is screwed to the bottom of the third filter cartridge, and a plurality of ventilation holes are provided on the bottom end surface of the sealing plate, one end of the ventilation hole is communicated with the interior of the third filter cartridge.

[0008] Preferably, the bottom of the inner wall of the first filter cartridge and the second filter cartridge is provided with an internal thread, and the top of the second filter cartridge and the third filter cartridge is welded with an external threaded tube.

[0009] Preferably, the first filter core is woven from metal wires, the second filter core is made of glass fiber, and the third filter core is made of activated carbon.

[0010] Preferably, an air guide frame is installed on an inner wall of one side of the box body, and a plurality of air guide plates are connected to the interior of the air guide frame via a rotating shaft, and the air guide plates are arranged at equal intervals in the vertical direction.

[0011] Preferably, a vent is provided on the inner wall of the other side of the box body, and an air outlet box is screwed to the outside of the vent, and a plurality of air outlets are provided on the bottom end surface of the air outlet box.

[0012] Preferably, a lighting lamp is screwed on the inner top of the box body, a plurality of storage plates are welded inside the box body, and a placement groove is provided on the top end surface of the storage plate, and a box door is hinged at one end of the box body.

[0013] Preferably, a pair of reinforcing ribs are welded to both sides of the inner wall of the box, and the two ends of the reinforcing ribs are fixedly connected to the top and bottom of the inner wall of the box respectively, and several buffer layers are installed on the inner wall of the other end of the box.

[0014] Preferably, the buffer layer is made of concrete and colloid material.

[0015] Preferably, universal wheels are screwed around the bottom end surface of the box body, and a damper is provided on the top of the universal wheel. A pair of lifting columns are screwed on both sides of the bottom end surface of the box body.

[0016] Beneficial effects of the utility model:

[0017] Air can be introduced into the box through the blower, which is beneficial to improving the ventilation effect of the equipment. The incoming air can be filtered through the first filter element, the second filter element and the third filter element. The multi-layer filter element can improve the filtering effect of the air, reduce the dust in the air entering the box, and avoid contamination of stored items. The first filter cartridge, the second filter cartridge and the third filter cartridge are fixed by threaded connection, which is convenient for the staff to replace the filter element. The spring can buffer the first filter cartridge when an explosion occurs inside the equipment, reduce the force on the first filter cartridge, and play a certain protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is an overall cross-sectional view of the utility model;

[0020] Figure 2 This is an isometric view of the entire utility model;

[0021] Figure 3 This is the overall front view of the utility model;

[0022] Figure 4 This is the overall bottom view of the utility model;

[0023] In the figure: 1. Box body; 2. Ventilation box; 3. Blower; 4. Ventilation duct; 5. Ring plate; 6. First filter cartridge; 7. Spring; 8. First filter element; 9. Second filter cartridge; 10. Second filter element; 11. Third filter cartridge; 12. Third filter element; 13. Sealing plate; 14. Ventilation hole; 15. Air guide frame; 16. Air guide plate; 17. Ventilation port; 18. Air outlet box; 19. Air outlet; 20. Lighting lamp; 21. Storage board; 22. Storage slot; 23. Box door; 24. Reinforcement rib; 25. Buffer layer; 26. Universal wheel; 27. Damper; 28. Lifting column. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-4As shown, this embodiment proposes a positive pressure ventilation explosion-proof cabinet, including a box body 1, a ventilation box 2 is welded on the top of the outer wall of one side of the box body 1, and a blower 3 is installed inside the ventilation box 2, a ventilation pipe 4 is connected to the outer wall of one side of the ventilation box 2, and one end of the ventilation pipe 4 is connected to the interior of the ventilation box 2, and the other end of the ventilation pipe 4 is welded with an annular plate 5, and the other end of the ventilation pipe 4 is sleeved with a first filter cartridge 6, and springs 7 are welded around the top of the inner wall of the first filter cartridge 6, and the bottom of the spring 7 is fitted with the top end face of the annular plate 5, the first filter element 8 is clamped inside the first filter cartridge 6, and a second filter is provided below the bottom of the first filter cartridge 6. The first filter cartridge 6 and the second filter cartridge 9 are provided with an internal thread, and the top of the second filter cartridge 9 and the third filter cartridge 11 are welded with an external threaded pipe, and the first filter cartridge 6, the second filter cartridge 9 and the third filter cartridge 11 are connected by the internal thread and the external threaded pipe. The first filter element 8 is woven from metal wire, the second filter element 10 is made of glass fiber, and the third filter element 12 is made of activated carbon. An air guide frame 15 is installed on the inner wall of one side of the box body 1, and a plurality of air guide plates 16 are connected to the inside of the air guide frame 15 through a rotating shaft. The air guide plates 16 are arranged equidistantly in the vertical direction. A vent 17 is provided on the inner wall of the other side of the box body 1, and an air outlet box 18 is screwed to the outside of the vent 17. A plurality of air outlets 19 are provided on the bottom end face of the air outlet box 18. A lighting lamp 20 is screwed to the top of the inner side of the box body 1, and a plurality of storage plates 21 are welded to the inside of the box body 1. A placement groove 22 is provided on the top end face of the storage plate 21, and a door 23 is hinged at one end of the box body 1. A pair of reinforcing ribs 24 are welded to the inner walls on both sides of the box body 1, and the two ends of the reinforcing ribs 24 are fixedly connected to the top and bottom of the inner wall of the box body 1 respectively. A number of buffer layers 25 are installed on the inner wall of the other end of the box body 1. The buffer layer 25 is made of concrete and colloid material. The hardness of the buffer layer 25 is increased by concrete, and the colloid material is used to buffer and unload force. Universal wheels 26 are screwed on all sides of the bottom end face of the box body 1, and a damper 27 is provided on the top of the universal wheel 26. A pair of lifting columns 28 are screwed on both sides of the bottom end face of the box body 1.

[0026] In this embodiment, when in use, the device can be driven to move by the universal wheel 26, and the damper 27 can reduce the shaking generated by the movement of the device to prevent collision of items placed on the storage plate 21. The device can be fixed by the lifting column 28, and the explosion-proof effect of the device can be improved by the reinforcing ribs 24 and the buffer layer 25. The blower 3 can introduce air into the box body 1 through the ventilation pipe 4, and the air inside the box body 1 will enter the air outlet box 18 through the ventilation port 17 and be discharged from the air outlet 19. The air outlet box 18 can prevent fragments from being directly splashed out from the ventilation port 17 when an explosion occurs inside the box body 1, thereby reducing the impact on the surrounding area. The wind direction can be adjusted by the air guide plate 16. Before the air enters the ventilation pipe 4, it will pass through the first filter cartridge 6, the second filter cartridge 9 and the third filter cartridge 11, and the air will be filtered by the first filter element 8, the second filter element 10 and the third filter element 12 to prevent dust from entering the box body 1.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positive pressure ventilation explosion-proof cabinet, characterized in that: The invention comprises a box body (1), a ventilation box (2) is welded on the top of the outer wall of one side of the box body (1), and a blower (3) is installed inside the ventilation box (2), a ventilation pipe (4) is connected to the outer wall of one side of the ventilation box (2), and one end of the ventilation pipe (4) is communicated with the inside of the ventilation box (2), and an annular plate (5) is welded on the other end of the ventilation pipe (4), and a first filter cartridge (6) is sleeved on the other end of the ventilation pipe (4), and springs (7) are welded around the top of the inner wall of the first filter cartridge (6), and the bottom of the spring (7) is in contact with the top end face of the annular plate (5), a first filter core (8) is clamped inside the first filter cartridge (6), a second filter cartridge (9) is provided below the bottom of the first filter cartridge (6), and a second filter core (10) is clamped inside the second filter cartridge (9), a third filter cartridge (11) is provided below the bottom of the second filter cartridge (9), and a third filter core (12) is clamped inside the third filter cartridge (11).

2. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: A sealing plate (13) is screwed to the bottom of the third filter cartridge (11), and a plurality of ventilation holes (14) are provided on the bottom end surface of the sealing plate (13), one end of the ventilation hole (14) is communicated with the interior of the third filter cartridge (11).

3. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: Internal threads are provided at the bottom of the inner walls of the first filter cartridge (6) and the second filter cartridge (9), and external threaded pipes are welded to the tops of the second filter cartridge (9) and the third filter cartridge (11).

4. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: The first filter core (8) is woven from metal wires, the second filter core (10) is made of glass fiber, and the third filter core (12) is made of activated carbon.

5. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: An air guide frame (15) is installed on an inner wall of one side of the box body (1), and a plurality of air guide plates (16) are connected to the interior of the air guide frame (15) via a rotating shaft, and the air guide plates (16) are arranged at equal intervals in the vertical direction.

6. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: A vent (17) is provided on the inner wall of the other side of the box body (1), and an air outlet box (18) is screwed to the outside of the vent (17), and a plurality of air outlets (19) are provided on the bottom end surface of the air outlet box (18).

7. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: A lighting lamp (20) is screwed to the top of the inner side of the box (1), a plurality of storage plates (21) are welded inside the box (1), and a storage groove (22) is provided on the top end surface of the storage plate (21), and a box door (23) is hinged at one end of the box (1).

8. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: A pair of reinforcing ribs (24) are welded to the inner walls on both sides of the box body (1), and the two ends of the reinforcing ribs (24) are fixedly connected to the top and bottom of the inner wall of the box body (1), respectively. A plurality of buffer layers (25) are installed on the inner wall at the other end of the box body (1).

9. The positive pressure ventilation explosion-proof cabinet according to claim 8, characterized in that: The buffer layer (25) is made of concrete and colloid material.

10. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: Universal wheels (26) are screwed around the bottom end surface of the box body (1), and a damper (27) is provided on the top of the universal wheel (26). A pair of lifting columns (28) are screwed on both sides of the bottom end surface of the box body (1).

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