Flameless explosion venting device

Abstract

The utility model discloses a flameless explosion venting device, which belongs to the technical field of explosion prevention and comprises an explosion venting box, a fan-shaped cover plate is arranged at the top of the explosion venting box, a fan-shaped support plate is fixedly arranged in the explosion venting box, a plurality of fire-retardant nets are arranged between the top of the fan-shaped support plate and the bottom of the fan-shaped cover plate and are sequentially stacked together from inside to outside, and the fan-shaped cover plate is arranged at the bottom of the fan-shaped support plate. A detachable explosion venting piece is fixedly arranged at the bottom of the explosion venting box, and a plurality of fan-shaped openings are formed in the fan-shaped cover plate and the fan-shaped supporting plate. The explosion venting pieces are arranged on the explosion venting box, so that pressure waves, flames, explosive products and unburned media can be sprayed out in the safe direction, the pressure in a container is reduced in time, the explosive flames can be gradually extinguished through the multiple fire retardant nets, the flames and combustible materials are completely prevented from spreading towards the outside of the explosion venting box, and the explosion venting effect is improved. The device integrity and personnel safety can be protected, and the risks of secondary explosion and continuous explosion caused by the fact that combustible materials are spread to the outside can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof technology and belongs to a flameless explosion venting device. Background Technology

[0002] In recent years, industrial dust has been increasingly widely used, but dust explosions have also become more frequent, and their potential dangers have gradually become apparent. Current pressure relief technologies, while releasing pressure, will also release high-temperature flames and combustion products from the explosion vent, potentially becoming new ignition sources and easily causing secondary and subsequent explosions, resulting in more serious hazards. Flameless pressure relief technology is an explosion pressure relief method that prevents the flame from spreading to the outside of the protected device and the pressure relief device, and reduces the damage to the external environment caused by the explosion. The flameless explosion relief device uses a pressure relief disc as the opening mechanism. When the shock wave pressure generated by the explosion reaches the opening pressure of the pressure relief disc, the disc ruptures rapidly, releasing the explosion pressure and the combustion mixture inside the container without causing damage or deformation to the container. The flame is gradually extinguished through the thermal effect of the flame arrestor mesh inside the device, the wall effect, and the principle of flame expansion, thereby preventing the flame from spreading to the external environment.

[0003] For example, in the prior art disclosure number CN221061565U, a flameless explosion relief device uses several buffer holes on a frustum-shaped rubber block to deflect the impact force. Two sliders contact the first spring, allowing the two first springs to buffer the impact force. At the same time, the frustum-shaped rubber block drives the limiting plate to squeeze the second spring, thus achieving the effect of buffering the impact force generated by the explosion.

[0004] However, the above-mentioned existing technology still has the following problems when in use: although the block buffers the flame and combustibles generated by the explosion, some of the flame and combustibles will still spread to the external environment of the explosion relief device, which can easily cause secondary explosions and continuous explosions, causing more serious damage. Based on this, the present invention provides a flameless explosion relief device that can prevent the spread of flame and combustibles. Utility Model Content

[0005] Therefore, this utility model provides a flameless explosion relief device to solve the problem that flames and combustibles can still spread outward due to the simple blocking structure in the prior art.

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

[0007] A flameless explosion venting device includes an explosion venting box, a fan-shaped cover plate on the top of the explosion venting box, a fan-shaped support plate fixedly installed inside the explosion venting box, a plurality of fire-resistant meshes between the top of the fan-shaped support plate and the bottom of the fan-shaped cover plate, the plurality of fire-resistant meshes being stacked together from the inside out, a detachable explosion venting plate fixedly installed at the bottom of the explosion venting box, and a plurality of fan-shaped openings on both the fan-shaped cover plate and the fan-shaped support plate.

[0008] Furthermore, lifting rings are fixedly provided on both sides of the top of the fan-shaped cover plate. The lifting rings are located outside the fan-shaped opening, and the explosion relief box can be easily lifted and installed using lifting equipment with the help of the lifting rings.

[0009] Furthermore, fan-shaped pads are fixedly provided on both sides of the top of the explosion relief box. The fan-shaped cover plate and the fan-shaped pads are detachably connected together. The fan-shaped pads can increase the contact area between the fan-shaped cover plate and the explosion relief box, thereby improving the connection between the fan-shaped cover plate and the explosion relief box.

[0010] Furthermore, handles are fixedly installed on both outer walls of the explosion relief box, allowing staff to grasp the handles and move the explosion relief box, thereby facilitating quick docking of the explosion relief box with the container.

[0011] Furthermore, each fireproof mesh is fixedly equipped with a fan-shaped frame on its outer side, and multiple positioning holes are opened on the top of both sides of each fan-shaped frame. The positioning holes on the multiple fan-shaped frames are connected, and the positioning holes make it convenient for workers to install the fan-shaped frames.

[0012] Furthermore, detachable fan-shaped fixing strips are fixed on both sides of the top of the fan-shaped cover plate. Multiple positioning rods are fixed on the inner wall of each of the two fan-shaped fixing strips. The positioning rods are inserted into the positioning holes. The multiple positioning rods are distributed in multiple fan-shaped openings. By using the positioning rods and positioning holes to cooperate, it is convenient for workers to assemble multiple fan-shaped frames.

[0013] Furthermore, a rubber clip is fixedly fitted on the outer wall of each positioning rod, and a groove adapted to the rubber clip is machined on the inner wall of each positioning hole. The rubber clip engages with the groove, thereby improving the firmness between the fan-shaped frame and the positioning rod.

[0014] Furthermore, the explosion relief box, sector-shaped cover plate, sector-shaped support plate, fire-resistant mesh, sector-shaped pad plate, sector-shaped frame, sector-shaped fixing strip, and positioning rod are all made of stainless steel. Stainless steel is hard and fire-resistant, which can greatly improve the strength and service life of the explosion relief box, sector-shaped cover plate, sector-shaped support plate, fire-resistant mesh, sector-shaped pad plate, sector-shaped frame, sector-shaped fixing strip, and positioning rod.

[0015] Furthermore, multiple airbags are bonded to the bottom of the fan-shaped support plate, each filled with fire extinguishing agent. The multiple airbags are evenly distributed on the fan-shaped support plate. When the flame burns the airbags, the scattered dry powder can extinguish part of the flame and combustibles, thereby improving the flame extinguishing effect.

[0016] This utility model has the following advantages:

[0017] 1. This utility model, by installing a venting disc on the explosion relief box, can cause pressure waves, flames, explosion products and unburned media to be ejected in a safe direction, thereby reducing the internal pressure of the container in a timely manner. Furthermore, the use of multiple flame arresters can gradually extinguish the explosion flame, thus completely preventing the flame and combustibles from spreading to the outside of the explosion relief box. This not only protects the integrity of the device and the safety of personnel, but also reduces the risk of secondary and continuous explosions caused by the spread of combustibles to the outside.

[0018] 2. The fire-resistant mesh is supported by a fan-shaped frame, and multiple fan-shaped frames are fixed with the help of positioning rods, which makes it convenient for staff to quickly replace all the fire-resistant meshes. Alternatively, multiple fire-resistant meshes can be replaced individually, thereby reducing the cost of use. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 A schematic diagram of the overall structure of this utility model;

[0022] Figure 2 A schematic diagram of the fire-resistant mesh provided by this utility model after disassembly;

[0023] Figure 3 Side view of the fan-shaped cover plate and multiple fire-resistant meshes provided by this utility model;

[0024] Figure 4 Cross-sectional views of multiple sector-shaped frames provided by this utility model;

[0025] Figure 5 for Figure 4 Enlarged view of part A in the image;

[0026] Figure 6 Side view of the sector-shaped fixing strip and positioning rod provided by this utility model;

[0027] Figure 7 The bottom view of the explosion relief box provided by this utility model.

[0028] In the diagram: 1. Explosion relief box; 2. Fan-shaped cover plate; 3. Fan-shaped support plate; 4. Fire arrestor mesh; 5. Explosion relief disc; 6. Fan-shaped opening; 7. Lifting ring; 8. Fan-shaped pad; 9. Handle; 10. Fan-shaped frame; 11. Positioning hole; 12. Fan-shaped fixing strip; 13. Positioning rod; 14. Rubber clip; 15. Slot; 16. Airbag. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Refer to the instruction manual appendix Figure 1-7 This utility model provides a flameless explosion venting device, including an explosion venting box 1, a fan-shaped cover plate 2 on the top of the explosion venting box 1, a fan-shaped support plate 3 fixedly installed inside the explosion venting box 1, a plurality of fire-resistant meshes 4 between the top of the fan-shaped support plate 3 and the bottom of the fan-shaped cover plate 2, the plurality of fire-resistant meshes 4 being stacked together from the inside out, a detachable explosion venting plate 5 fixedly installed at the bottom of the explosion venting box 1, and a plurality of fan-shaped openings 6 on both the fan-shaped cover plate 2 and the fan-shaped support plate 3.

[0031] Lifting rings 7 are fixed on both sides of the top of the fan-shaped cover plate 2. The lifting rings 7 are located outside the fan-shaped opening 6. The lifting rings 7 can be used to facilitate the installation of the explosion relief box 1 by using lifting equipment.

[0032] Both sides of the top of the explosion relief box 1 are fixed with fan-shaped pads 8. The fan-shaped cover plate 2 and the fan-shaped pads 8 are detachably connected together. The fan-shaped pads 8 can increase the contact area between the fan-shaped cover plate 2 and the explosion relief box 1, thereby improving the connection between the fan-shaped cover plate 2 and the explosion relief box 1.

[0033] Handles 9 are fixedly installed on both outer walls of the explosion relief box 1, allowing staff to grasp the handles 9 to move the explosion relief box 1, thus facilitating quick docking of the explosion relief box 1 with the container.

[0034] In use, the explosion relief box 1 is installed on the container. When the dust inside the container explodes and reaches the opening pressure of the explosion relief disc 5, the stress bridge on the explosion relief disc 5 breaks rapidly, causing the pressure wave, flame, explosion products, and unburned media to be ejected in a safe direction. This allows the internal pressure of the container to drop in time, and the flame is gradually extinguished by the multiple flame arresting nets 4 inside the explosion relief box 1. This completely prevents the flame and combustibles from spreading to the outside of the explosion relief box 1, thus achieving the function of protecting the integrity of the device and the safety of personnel, and reducing the risk of secondary and continuous explosions caused by the spread of combustibles to the outside.

[0035] Each fireproof net 4 is fixedly provided with a fan-shaped frame 10 on the outside. Each fan-shaped frame 10 has multiple positioning holes 11 on both sides of the top, and the positioning holes 11 on the multiple fan-shaped frames 10 are connected. The positioning holes 11 make it convenient for workers to install the fan-shaped frame 10.

[0036] Both sides of the top of the fan-shaped cover plate 2 are fixed with detachable fan-shaped fixing strips 12. Multiple positioning rods 13 are fixed on the inner wall of the two fan-shaped fixing strips 12. The positioning rods 13 are inserted into the positioning holes 11. The multiple positioning rods 13 are distributed in multiple fan-shaped openings 6. The positioning rods 13 cooperate with the positioning holes 11 to facilitate the workers to assemble multiple fan-shaped frames 10.

[0037] Each positioning rod 13 has a rubber clip 14 fixedly fitted on its outer wall, and each positioning hole 11 has a groove 15 that matches the rubber clip 14 on its inner wall. The rubber clip 14 engages with the groove 15, thereby improving the firmness between the fan-shaped frame 10 and the positioning rod 13.

[0038] Multiple airbags 16 are bonded to the bottom of the fan-shaped support plate 3. Each airbag 16 is filled with extinguishing agent, and the multiple airbags 16 are evenly distributed on the fan-shaped support plate 3. Dry powder extinguishing agent can be used. When the flame burns the airbag 16, the scattered dry powder can extinguish part of the flame and combustibles, thereby improving the flame extinguishing effect.

[0039] By setting a fan-shaped frame 10 on each fire arrestor mesh 4, the fan-shaped frame 10 supports the fire arrestor mesh 4 and places it in the explosion relief box 1. With the help of the positioning holes 11 on both sides of the fan-shaped frame 10, multiple fan-shaped frames 10 can be inserted into the positioning rod 13 in sequence. When the fan-shaped cover plate 2 is removed, multiple fire arrestor meshes 4 can be moved out of the explosion relief box 1 together with the positioning rod 13, which makes it convenient for the staff to quickly replace all the fire arrestor meshes 4. Alternatively, multiple fire arrestor meshes 4 can be removed from the positioning rod 13 in sequence and replaced individually. After the fire arrestor meshes 4 are reinserted, multiple rubber clips 14 on the positioning rod 13 are respectively locked in the slots 15 on the inner wall of multiple positioning holes 11, which can improve the firmness of the fan-shaped frame 10 and the positioning rod 13. In addition, multiple airbags 16 are also glued to the inner wall of the fan-shaped support plate 3. The flames and combustibles generated by the explosion can burn the airbags 16, and the extinguishing agent in the airbags 16 can be released to extinguish the flames and combustibles.

[0040] The explosion relief box 1, sector-shaped cover plate 2, sector-shaped support plate 3, fire-resistant mesh 4, sector-shaped pad plate 8, sector-shaped frame 10, sector-shaped fixing strip 12, and positioning rod 13 are all made of stainless steel. Stainless steel is hard and fire-resistant, which can greatly improve the strength and service life of the explosion relief box 1, sector-shaped cover plate 2, sector-shaped support plate 3, fire-resistant mesh 4, sector-shaped pad plate 8, sector-shaped frame 10, sector-shaped fixing strip 12, and positioning rod 13.

[0041] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A flameless explosion venting device, characterized in that: Includes an explosion relief box (1), the explosion relief box (1) is provided with a fan-shaped cover plate (2) on the top, a fan-shaped support plate (3) is fixedly provided inside the explosion relief box (1), and multiple fire-resistant nets (4) are provided between the top of the fan-shaped support plate (3) and the bottom of the fan-shaped cover plate (2), and the multiple fire-resistant nets (4) are stacked together from the inside to the outside. The bottom of the explosion relief box (1) is fixed with a detachable explosion relief plate (5), and multiple fan-shaped openings (6) are provided on the fan-shaped cover plate (2) and the fan-shaped support plate (3).

2. The flameless explosion venting device according to claim 1, characterized in that: The top two sides of the fan-shaped cover plate (2) are fixed with lifting rings (7), which are located outside the fan-shaped opening (6).

3. The flameless explosion venting device according to claim 1, characterized in that: The explosion relief box (1) is fixedly provided with fan-shaped pads (8) on both sides of the top, and the fan-shaped cover plate (2) and the fan-shaped pads (8) are detachably connected together.

4. The flameless explosion venting device according to claim 1, characterized in that: Handles (9) are fixedly installed on both outer walls of the explosion relief box (1).

5. The flameless explosion venting device according to claim 1, characterized in that: Each fireproof net (4) is fixedly provided with a fan-shaped frame (10) on the outside. Each fan-shaped frame (10) has multiple positioning holes (11) on both sides of the top, and the positioning holes (11) on the multiple fan-shaped frames (10) are connected.

6. The flameless explosion venting device according to claim 5, characterized in that: The top two sides of the fan-shaped cover plate (2) are fixed with detachable fan-shaped fixing strips (12). The inner walls of the two fan-shaped fixing strips (12) are fixed with multiple positioning rods (13). The positioning rods (13) are inserted into the positioning holes (11). The multiple positioning rods (13) are distributed in multiple fan-shaped openings (6).

7. The flameless explosion venting device according to claim 6, characterized in that: Each positioning rod (13) has a rubber clip (14) fixedly fitted on its outer wall, and each positioning hole (11) has a groove (15) that is compatible with the rubber clip (14) on its inner wall. The rubber clip (14) is engaged with the groove (15).

8. The flameless explosion venting device according to claim 6, characterized in that: The explosion relief box (1), fan-shaped cover plate (2), fan-shaped support plate (3), fire-resistant mesh (4), fan-shaped pad plate (8), fan-shaped frame (10), fan-shaped fixing strip (12), and positioning rod (13) are all made of stainless steel.

9. The flameless explosion venting device according to claim 1, characterized in that: The bottom of the fan-shaped support plate (3) is bonded with multiple airbags (16), each of which is filled with fire extinguishing agent, and the multiple airbags (16) are evenly distributed on the fan-shaped support plate (3).

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