Pressure-relief explosion-proof carbon powder explosion-proof device
By designing a pressure relief and explosion-proof carbon powder explosion-proof device, the problems of untimely response and flame propagation in the existing technology were solved by using a pressure relief controller and flame arrestor. This achieved rapid pressure relief and flame cooling, improving the safety and reliability of the device.
Patent Information
- Application Number
- CN202520385610.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing carbon powder explosion-proof devices are slow to react in the event of a rapid explosion, lack sufficient pressure relief capacity and safety, and are unable to effectively suppress flame propagation, leading to potential secondary explosion risks.
An explosion-proof device for charcoal powder with pressure relief was designed, which includes a pressure relief controller, a motor, a gear and rack system and a flameless relief mechanism. By monitoring pressure changes in real time, it can release pressure in a timely manner and use flame arrestors to cool the flame and prevent the flame from spreading.
It achieves rapid pressure relief and flame cooling, reduces explosion pressure, prevents secondary explosions, and improves the reaction speed and safety of the device.
Smart Images
Figure CN223856325U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of explosion -proof, especially relates to the relief explosion -proof carbon powder explosion -proof device. BACKGROUND
[0002] In many industrial production processes, there are flammable and explosive gases or dusts, in coal mining, coal mining, transportation and processing will produce a large amount of coal dust, when coal dust in air reaches a certain concentration, when encountering fire, will cause an explosion, similarly, in the chemical industry, some organic compounds in the production process, will produce combustible gas and combustible dust, flour dust in flour mill, aluminum powder in metal processing plant, these places once the explosion, not only will cause huge property losses, but also endanger people's life and safety, dust explosion accident once occurs, its damage degree may not be inferior to gas explosion, and dust explosion may also trigger a chain reaction, leading to more extensive disaster.
[0003] With the continuous improvement of the requirement of industrial safety, researchers began to explore the use of carbon powder explosion-proof characteristics to develop special explosion-proof device. Early carbon powder explosion-proof device design is relatively simple, mainly carbon powder is placed in a container, through the pipeline and possible explosion area is connected. When the explosion occurs, the explosion wave will blow carbon powder, play a role in inhibiting explosion, traditional structure explosion-proof technology, this technology for some large, open equipment or place effect is limited, inhibiting explosion-proof technology is mainly through the injection of fire extinguishing agent or inert gas into the space where the explosion may occur to inhibit explosion, but, this technology needs complex monitoring and injection system, and for some rapid explosion, may not be able to react in time. UTILITY MODEL CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides a relief explosion -proof carbon powder explosion -proof device, aims at improving the existing technology cannot react in time explosion, pressure relief capacity reliability and safety problems.
[0005] In order to achieve the above object, the utility model discloses the following technical scheme: pressure relief anti -explosion carbon powder explosion -proof device, including the surrounding body, the top right side of surrounding body is fixedly connected with pressure relief shell, the inner wall bottom of pressure relief shell is fixedly connected with annular mouth, the top of annular mouth is provided with rubber ball, the top of rubber ball is fixedly connected with fixed column, the inner wall top of pressure relief shell is fixedly connected with spring, the right side of pressure relief shell is communicated with the air outlet pipeline, the middle upper portion of fixed column is fixedly connected with rack, the right side of rack is connected with gear, the rear middle part of gear is fixedly connected with motor, the middle part of gear is fixedly connected in the output end of motor, the top front side of surrounding body is fixedly connected with pressure relief controller, the bottom of pressure relief controller is fixedly connected with pressure receptor, the right side bottom of surrounding body is provided with flameless release mechanism, and the flameless release mechanism is used for the protection of carbon powder explosion.
[0006] As a further description of the above technical scheme:
[0007] The flameless release mechanism includes an explosion venting sheet, the explosion venting sheet is arranged at the right bottom of the surrounding body, a square opening is formed in the right outer wall of the surrounding body, a plurality of screws one are threadedly connected at the right corner of the explosion venting sheet, a fixed frame is arranged at the right side of the explosion venting sheet, a plurality of screws two are threadedly connected at the right corner of the fixed frame, a release housing is fixedly connected to the inner wall of the fixed frame, a fire-retardant element is fixedly connected to the top inner wall of the release housing, and a bottom plate is fixedly connected to the bottom of the release housing.
[0008] As a further description of the above technical scheme:
[0009] The rear side of the motor is fixedly connected with a fixed shell, and the top of the fixed column is fixedly connected with a dustproof spherical cover.
[0010] As a further description of the above technical scheme:
[0011] The left outer wall of the surrounding body is fixedly connected with a handle near the top edge, and anti-skid pads are fixedly connected to the upper and lower sides of the handle.
[0012] As a further description of the above technical scheme:
[0013] The left bottom of the surrounding body is communicated with an inlet pipeline, and an explosion-proof valve is fixedly connected to the middle of the inlet pipeline.
[0014] As a further description of the above technical scheme:
[0015] The bottom of the surrounding body is communicated with an outlet pipeline, and a rotating shaft is rotatably connected to the middle of the outlet pipeline.
[0016] As a further description of the above technical scheme:
[0017] The middle part of the rotating shaft is fixedly connected with a blocking fan, and the front and rear ends of the rotating shaft are fixedly connected with limiting rings.
[0018] Further description of the above technical solution:
[0019] The bottom of the surrounding body is provided with a base, and the bottom corners of the base are fixedly connected with foot supports.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1. In the utility model, when the pressure relief controller detects that the internal pressure exceeds the set value, the motor is started to drive the gear and the rack to move upwards, so that the fixed column and the rubber ball move away from the annular port, the excess gas in the surrounding body is released, the gas is discharged through the gas outlet pipeline of the pressure relief shell, and after the pressure drops to the preset value, the motor is automatically reversed to close, the gas pressure in the container can be timely reflected, and measures can be taken, so that the efficiency and reliability are improved.
[0022] 2. In the utility model, when the carbon powder explodes, the huge internal pressure will break the explosion relief sheet from the square port, the flame in the inside enters the relief shell body, when passing through the reticular fire-retardant element, the fire-retardant element exchanges heat with the flame, the high-temperature flame is rapidly cooled, the pressure and the smoke are released, the flame is prevented from being spread, and secondary explosion or multiple explosions are prevented. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 The utility model provides a surrounding body front side perspective drawing of pressure relief explosion -proof carbon powder explosion -proof device;
[0024] Figure 2 The utility model provides a relief shell partial structure split drawing of pressure relief explosion -proof carbon powder explosion -proof device;
[0025] Figure 3 The utility model provides a spring partial structure split drawing of pressure relief explosion -proof carbon powder explosion -proof device;
[0026] Figure 4 The utility model provides a relief shell partial structure split drawing of pressure relief explosion -proof carbon powder explosion -proof device;
[0027] Figure 5 The utility model provides a base partial structure schematic diagram of pressure relief explosion -proof carbon powder explosion -proof device.
[0028] LEGEND:
[0029] 1, the body; 2, flameless release mechanism; 201, release film; 202, screw one; 203, square mouth; 204, release shell; 205, fixed frame; 206, screw two; 207, bottom plate; 208, fire barrier element; 3, annular port; 4, rubber ball; 5, fixed column; 6, pressure relief housing; 7, spring; 8, motor; 9, gear; 10, rack; 11, air outlet pipeline; 12, pressure receptor; 13, pressure relief controller; 14, fixed shell; 15, dustproof spherical cover; 16, handle; 17, non-slip pad; 18, explosion-proof valve; 19, inlet pipeline; 20, outlet pipeline; 21, rotating shaft; 22, barrier fan; 23, limiting ring; 24, base; 25, foot stand. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 3 An embodiment provided by the utility model: the pressure relief explosion-proof carbon powder explosion-proof device, including the body 1, the top right side of the body 1 is fixedly connected with the pressure relief housing 6, the inner wall bottom of the pressure relief housing 6 is fixedly connected with the annular port 3, the top of the annular port 3 is provided with the rubber ball 4, can block the inside to form a closed space, open when needed, the top of the rubber ball 4 is fixedly connected with the fixed column 5, the inner wall top of the pressure relief housing 6 is fixedly connected with the spring 7, the right side of the pressure relief housing 6 is communicated with the air outlet pipeline 11, the middle upper part of the fixed column 5 is fixedly connected with the rack 10, the right side of the rack 10 is engagedly connected with the gear 9, so that one of them moves, can drive the other to move, the rear middle part of the gear 9 is fixedly connected with the motor 8, the middle part of the gear 9 is fixedly connected at the output end of the motor 8, the top front side of the body 1 is fixedly connected with the pressure relief controller 13, so that the air pressure in the container can be monitored in real time, the bottom of the pressure relief controller 13 is fixedly connected with the pressure receptor 12, the right bottom of the body 1 is provided with the flameless release mechanism 2, the flameless release mechanism 2 is used for the protection of carbon powder explosion;
[0032] Specific, including a surrounding body 1, the top right side of this surrounding body 1 is fixedly connected with a pressure relief shell 6, and an annular port 3 is fixedly connected to the inner wall of the bottom of the pressure relief shell 6. The top of the annular port 3 is provided with a rubber ball 4, which can effectively block the inside to form a closed space, which can be opened when needed. The top of the rubber ball 4 is fixedly connected with a fixed column 5, and the inner wall of the top of the pressure relief shell 6 is fixedly connected with a spring 7. The right side of the pressure relief shell 6 is communicated with a gas outlet pipe 11 for discharging gas when necessary. The middle and upper part of the fixed column 5 is fixedly connected with a rack 10, and the right side of the rack 10 is engagedly connected with a gear 9, so that the movement of one can drive the other to move. The rear middle part of the gear 9 is fixedly connected with a motor 8, which ensures that the gear 9 can be driven by the output end of the motor 8. The top front side of the surrounding body 1 is fixedly connected with a pressure relief controller 13, which can detect the gas pressure in the container in real time. The bottom of the pressure relief controller 13 is fixedly connected with a pressure sensor 12 for accurately measuring pressure changes. In addition, the right bottom of the surrounding body 1 is provided with a flameless relief mechanism 2 for protection of carbon powder explosion, ensuring the safety of the whole device.
[0033] Please refer to the attached Figure 1 - attached Figure 3 The flameless relief mechanism 2 includes an explosion relief sheet 201, which is arranged at the right bottom of the surrounding body 1. A square port 203 is formed in the outer wall of the right side of the surrounding body 1, so that the flame is discharged from the port during explosion. A plurality of screws 202 are threadedly connected to the right corner of the explosion relief sheet 201. A fixed frame 205 is arranged at the right side of the explosion relief sheet 201. A plurality of screws 206 are threadedly connected to the right corner of the fixed frame 205, which plays a fixing role. A relief housing 204 is fixedly connected to the inner wall of the fixed frame 205. A fire blocking element 208 is fixedly connected to the inner wall of the top of the relief housing 204. A bottom plate 207 is fixedly connected to the bottom of the relief housing 204. The fire blocking element 208 can rapidly cool the high-temperature flame when it contacts the flame.
[0034] Specifically, the flameless relief mechanism 2 comprises a relief plate 201, which is arranged at the right bottom of the enclosure 1. In order to ensure that the flame can be effectively guided and discharged when an explosion occurs, a square opening 203 is formed on the right outer wall of the enclosure 1, and the right corner of the relief plate 201 is fixed by a plurality of screws 202 in a threaded connection manner. In addition, the right side of the relief plate 201 is provided with a fixed frame 205, which is also fixed by a plurality of screws 206 in a threaded connection manner at the right corner thereof. The screws 206 further enhance the stability of the relief plate 201, ensuring that it can remain fixed under extreme conditions. The inner wall of the fixed frame 205 is fixedly connected with a relief housing 204, and the inner wall of the relief housing 204 is fixedly connected with a flame arrestor 208 at the top. The flame arrestor 208 can quickly cool the high-temperature flame when it comes into contact with the flame, thereby effectively reducing the temperature of the flame and preventing further spread of the flame. The bottom of the relief housing 204 is fixedly connected with a bottom plate 207, which provides a solid support foundation for the entire relief mechanism, ensuring the stability and reliability of the entire relief mechanism during operation.
[0035] Please refer to the accompanying drawings Figure 1 - the accompanying drawings Figure 3 The rear side of the motor 8 is fixedly connected with a fixed shell 14, the top of the fixed column 5 is fixedly connected with a dustproof spherical cover 15, the left outer wall of the enclosure 1 is fixedly connected with a handle 16 near the top edge, providing convenience, and the upper and lower sides of the handle 16 are fixedly connected with anti-slip pads 17. The left bottom of the enclosure 1 is communicated with an inlet pipeline 19, and the middle of the inlet pipeline 19 is fixedly connected with an explosion-proof valve 18, reducing the loss caused by explosion.
[0036] Specifically, the rear side of the motor 8 is fixedly connected with the fixed shell 14, which can ensure the stability and safety of the motor 8. Meanwhile, the top of the fixed column 5 is fixedly connected with the dustproof spherical cover 15, which can effectively prevent dust and other impurities from entering the inside of the fixed column 5, ensuring the cleanliness and normal operation of the equipment. In addition, the left outer wall of the enclosure 1 is fixedly connected with the handle 16 near the top edge, which provides a convenient gripping point for the user, making it more convenient for the user to move the equipment. In order to further improve the user experience, the upper and lower sides of the handle 16 are fixedly connected with the anti-slip pads 17, which can effectively prevent the user from slipping when gripping the handle 16, improving the safety of use. Finally, the left bottom of the enclosure 1 is communicated with the inlet pipeline 19, which can facilitate the user to put the items to be processed into the equipment. In order to ensure the safe operation of the equipment, the middle of the inlet pipeline 19 is fixedly connected with the explosion-proof valve 18, which can reduce the loss caused by explosion when it occurs.
[0037] Please refer to the accompanying drawings Figure 1- attached Figure 3 The bottom of the surrounding body 1 is communicated with an outlet pipeline 20, the middle part of the outlet pipeline 20 is rotatably connected with a rotating shaft 21, the flexibility is increased, the middle part of the rotating shaft 21 is fixedly connected with a blocking fan 22, the front and rear ends of the rotating shaft 21 are fixedly connected with limiting rings 23, the bottom of the surrounding body 1 is provided with a base 24, and the bottom corners of the base 24 are fixedly connected with foot supports 25, so that the surrounding body 1 is more stably erected.
[0038] Specifically, the bottom of the surrounding body 1 is communicated with the outlet pipeline 20, in order to improve the flexibility of operation, the middle part of the outlet pipeline 20 is rotatably connected with the rotating shaft 21, and the stability of the structure is also enhanced. In addition, the middle part of the rotating shaft 21 is also fixedly connected with a blocking fan 22, which can effectively control the flow direction of the material and ensure the safety and controllability in use. In order to ensure the stability of the rotating shaft 21 during rotation, the front and rear ends of the rotating shaft 21 are fixedly connected with limiting rings 23. In order to further enhance the stability of the surrounding body 1, the bottom of the surrounding body 1 is provided with a base 24. The stability requirement in actual use is considered in the design of the base 24, and the bottom corners of the base 24 are fixedly connected with foot supports 25. The foot supports 25 not only can provide additional support, but also can ensure the stability of the surrounding body 1 during actual erection, so as to ensure the stability and safety of the whole device in use.
[0039] Working principle: when the pressure sensor 12 at the bottom of the pressure relief controller 13 detects that the pressure in the surrounding body 1 exceeds the set value, the pressure relief controller 13 controls the starting motor 8, the output end of the motor 8 is fixedly connected with a gear 9, the rotation of the gear 9 makes the meshing connected rack 10 start to move upwards, so that the fixed column 5 fixedly connected therewith starts to move upwards, so that the rubber ball 4 fixedly connected at the bottom leaves the annular port 3, and the excessive gas in the surrounding body 1 can be released. The gas outlet pipeline 11 at the right side of the pressure relief shell 6 discharges, until the pressure drops below the preset value, the motor 8 is automatically controlled in reverse to automatically shut down, improving the efficiency and reliability;
[0040] When the carbon powder explodes, the huge pressure inside will break through the explosion relief sheet 201 from the square port 203, the flame inside enters the relief shell 204, when passing through the meshed fire blocking element 208, the fire blocking element 208 exchanges heat with the flame, and the high-temperature flame is quickly cooled, the pressure and smoke are discharged, the flame is prevented from being spread, and secondary explosion or multiple explosions are prevented.
[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A pressure relief explosion-proof pulverized coal explosion-proof device comprising a surrounding body (1), characterized in that: The top right side of the enclosure (1) is fixedly connected with a pressure relief shell (6), the inner wall bottom of the pressure relief shell (6) is fixedly connected with an annular port (3), the top of the annular port (3) is provided with a rubber ball (4), the top of the rubber ball (4) is fixedly connected with a fixed column (5), the inner wall top of the pressure relief shell (6) is fixedly connected with a spring (7), the right side of the pressure relief shell (6) is communicated with an air outlet pipeline (11), the middle upper part of the fixed column (5) is fixedly connected with a rack (10), the right side of the rack (10) is engagedly connected with a gear (9), the rear middle part of the gear (9) is fixedly connected with a motor (8), the middle part of the gear (9) is fixedly connected at the output end of the motor (8), the top front side of the enclosure (1) is fixedly connected with a pressure relief controller (13), the bottom of the pressure relief controller (13) is fixedly connected with a pressure receptor (12), the right bottom of the enclosure (1) is provided with a flameless relief mechanism (2), which is used for the protection of carbon powder explosion.
2. The pressure relief explosion-isolation coal dust explosion-isolation device according to claim 1, characterized in that: The flameless relief mechanism (2) comprises a relief film (201), which is arranged at the right bottom of the enclosure (1), a square port (203) is formed in the right outer wall of the enclosure (1), a plurality of screws one (202) are threadedly connected at the right corner of the relief film (201), a fixed frame (205) is arranged at the right side of the relief film (201), a plurality of screws two (206) are threadedly connected at the right corner of the fixed frame (205), a relief housing (204) is fixedly connected to the inner wall of the fixed frame (205), a fire stopping element (208) is fixedly connected to the inner wall top of the relief housing (204), and a bottom plate (207) is fixedly connected to the bottom of the relief housing (204).
3. The pressure relief and explosion-proof pulverized coal explosion-proof device according to claim 1, characterized in that: The rear side of the motor (8) is fixedly connected with a fixed shell (14), and the top of the fixed column (5) is fixedly connected with a dustproof spherical cover (15).
4. The pressure relief and explosion-proof coal dust explosion prevention device according to claim 1, characterized in that: The left outer wall of the enclosure (1) is fixedly connected with a handle (16) near the top edge, and anti-skid pads (17) are fixedly connected to the upper and lower sides of the handle (16).
5. The pressure relief and explosion-proof coal dust explosion prevention device according to claim 1, characterized in that: The left bottom of the enclosure (1) is communicated with an inlet pipeline (19), and the middle part of the inlet pipeline (19) is fixedly connected with an explosion-proof valve (18).
6. The pressure relief explosion-isolation coal dust explosion-isolation device according to claim 1, characterized in that: The bottom of the enclosure (1) is communicated with an outlet pipeline (20), and the middle part of the outlet pipeline (20) is rotatably connected with a rotating shaft (21).
7. The pressure relief and explosion-proof coal dust explosion prevention device according to claim 6, characterized in that: The middle part of the rotating shaft (21) is fixedly connected with a blocking fan (22), and the front and rear ends of the rotating shaft (21) are fixedly connected with limit rings (23).
8. The pressure relief explosion-isolation coal dust explosion-isolation device according to claim 1, characterized in that: The bottom of the enclosure (1) is provided with a base (24), and the bottom corners of the base (24) are fixedly connected with foot supports (25).