Explosion-wave-proof valve with sand prevention function

Abstract

The invention discloses an anti-explosion wave valve with a sand prevention function, and belongs to the technical field of protection facilities. The valve comprises a valve body, a plurality of U-shaped air channels are formed in the valve body, inclined sand outlet channels are formed in the bottoms of the channels, and outlets are connected with blocking plates through bolts. An anti-explosion and sand-proof assembly is arranged outside the door body, comprises a first baffle and a second baffle and is rotationally connected with the door body and the sliding block through a damping rotating shaft. The sliding block slides in the sliding groove, and a magnet block is arranged at the top to stabilize the triangular structure. Ventilation through holes are formed in the second baffle, air is allowed to pass through, and sand and dust are blocked. In a normal state, the explosion-proof and sand-proof assembly forms a triangular structure, and sand and dust are separated from air through inertia; when explosive shock waves come, the impact force closes the assembly, and the air channel is blocked to protect the shock waves. The sand-proof and explosion-proof device has sand-proof and explosion-proof functions, is simple in structure and high in practicability, and is suitable for engineering building protection in a severe environment.

Description

Technical Field

[0001] This invention relates to the field of protective facility technology, and in particular to a blast wave valve with sand-proof function. Background Technology

[0002] Frequent sandstorms can easily damage construction projects in these areas, impacting equipment maintenance and the working environment of staff. Therefore, sand control equipment is typically required, primarily baghouse dust collectors and oil filter screens. Additionally, some critical construction projects need to be equipped with shockwave protection capabilities. A shockwave is the wave generated after an explosive detonation, where the pressure at the detonation point rises sharply, violently compressing the surrounding air. Shockwave protection prevents these waves from entering the building and damaging personnel and equipment, ensuring the safety of personnel and the stable operation of equipment.

[0003] Most existing protective devices only have a single protective function, such as sand protection or explosion protection. Therefore, designing a protective door that integrates sand protection and explosion protection is of great significance for improving the safety and reliability of buildings. Summary of the Invention

[0004] The present invention aims to provide a blast wave valve with sand-proof function to solve the problem of the limited protective function of existing protective devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An explosion-proof wave-proof door with sand-proof function includes a door body with several air channels inside, through which the air channels pass. The center of each air channel has a U-shaped structure. An explosion-proof and sand-proof component is installed on the outside of the door body. The explosion-proof and sand-proof component includes a first baffle and a second baffle. The first baffle is rotatably connected to the door body. Sliding grooves are provided on both sides of the door body, and sliders are slidably connected inside the sliding grooves. Magnet blocks are provided at the top of the sliding grooves and the top of the sliders. The sides of the sliders are rotatably connected to the second baffle. One end of the second baffle is rotatably connected to the first baffle, and the other end is rotatably connected to the side of the slider. Ventilation holes are provided on the second baffle, through which external air enters the interior via the ventilation holes and air channels.

[0007] Furthermore, a sand outlet channel is provided at the bottom of the U-shaped structure of the air channel, which connects the outside to the air channel. A baffle plate is bolted to the outlet of the sand outlet channel.

[0008] Furthermore, the sand outlet channel has an inclined structure.

[0009] Furthermore, sand-proof and sand-proof components are connected to sand-blocking plates on both sides to prevent sand and dust from entering from both sides of the components.

[0010] Furthermore, the first baffle and the door body, as well as the slider and the second baffle, are rotatably connected by damping shafts.

[0011] The principle and beneficial effects of this technical solution: The explosion-proof and sand-proof component of this invention has a triangular structure under normal conditions. The ventilation hole, which allows entry into the door's interior, is located on the second baffle. When air carrying sand and dust blows towards the door body, the explosion-proof and sand-proof component can block and change the direction of airflow. Sand and dust, due to their significant inertia, cannot quickly change direction and are thus blocked on the outside of the door. Airflow is relatively good and can enter through the ventilation hole. The U-shaped structure within the air channel further utilizes inertia to separate sand and dust from the air. The combined effect of these two mechanisms effectively prevents sand and dust from entering the door's interior, thus achieving sand protection. The principle of explosion-proof shock wave protection is to use the pressure generated by the shock wave to quickly close the air channel, thereby preventing the shock wave from entering the door's interior. This invention possesses the dual advantages of sand protection and explosion protection. Under normal conditions, the explosion-proof and sand-proof component can prevent sand and dust from entering the door's interior. In the event of an explosion generating a shock wave, it can quickly close the air channel, preventing damage to the door's interior from the shock wave. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention;

[0013] Figure 2 This is a side sectional view of the present invention;

[0014] Figure 3 This is an enlarged view of the explosion-proof and sand-proof component of the present invention in the open state;

[0015] Figure 4 This is an enlarged view of the explosion-proof and sand-proof component of the present invention in the closed state;

[0016] Figure 5 This is a schematic diagram illustrating the principle of the dust-proofing invention, showing the process of dust separation from air;

[0017] In the diagram: 1. Door body; 2. Air passage; 3. Explosion-proof and sand-proof components; 4. Slide rail; 5. Sliding block; 6. Magnet block; 7. Sand discharge channel; 8. Baffle plate; 9. Sand baffle plate; 31. First baffle plate; 32. Second baffle plate; 33. Ventilation hole. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0019] like Figures 1-5The diagram shows a sand-proof explosion-proof valve, comprising a door body 1, which is a steel door. The door body 1 has four air channels 2 arranged from top to bottom, connecting the inner and outer sides of the door body 1. Each air channel 2 has a U-shaped structure at its center, with a sand outlet channel 7 at the bottom. The sand outlet channel 7 is inclined to facilitate the outflow of sand and dust. A baffle plate 8 is bolted to the outlet at the bottom of the sand outlet channel 7. When cleaning the sand and dust inside is required, the baffle plate 8 can be removed, and the sand and dust can be blown out using a blower or similar equipment. An explosion-proof sand-proof component 3 is installed at the outlet of the air channel 2, i.e., on the outer side of the door body 1. The explosion-proof sand-proof component 3 consists of a first baffle 31 and a second baffle 32. One end of the first baffle 31 is connected to... The damping shaft is rotatably connected to the door body 1. The other end of the first baffle 31 is rotatably connected to one end of the second baffle 32. The other end of the second baffle 32 is rotatably connected to the slider 5 through the damping shaft. The slider 5 is slidably connected inside the slide groove 4. A magnet 6 is provided at the top of the slide groove 4. A magnet 6 is also provided at the top of the slider 5. When the slider 5 slides to the top of the slide groove 4, the two magnets 6 are magnetically connected, so that the first baffle 31, the second baffle 32 and the door body 1 form a stable triangular structure, so that the state of the first baffle 31 and the second baffle 32 is fixed. A ventilation hole 33 is provided on the second baffle 32. External air can enter the interior of the door body 1 through the ventilation hole 33 and the air channel 2. Sand baffles 9 are connected on both sides of the explosion-proof and sand-proof component 3. The sand baffles 9 can prevent air carrying sand and dust from entering from the side.

[0020] The specific implementation process is as follows: Under normal conditions, the explosion-proof and sand-proof component 3 of this invention is in the following state: Figure 3 As shown, when air carrying sand and dust blows towards the door body 1, due to the fluidity of the air, it changes direction after encountering the explosion-proof and sand-proof component 3, thus entering the air channel 2 through the ventilation hole 33 of the second baffle 32. However, sand and dust particles have greater inertia than air, and cannot immediately change their direction of movement after encountering the explosion-proof and sand-proof component 3. Therefore, the sand and dust particles lose momentum after colliding with the explosion-proof and sand-proof component 3 and are blocked outside. At the same time, the internal U-shaped structure of the air channel 2 uses the same principle. Air with good fluidity can pass through the U-shaped structure, while sand and dust particles, due to their own inertia, will be deposited at the bottom of the U-shaped structure and then flow into the sand outlet channel 7, thus preventing sand and dust from entering the rear side of the door body 1, while allowing air to enter the rear side of the door body 1. Regarding explosion-proof shockwave protection, when a shockwave arrives, the significant shockwave pressure will impact the explosion-proof and sand-proof component 3. The magnetic force between the slider 5 and the slide groove 4, the friction between the door body 1 and the damping shaft of the first baffle 31, and the friction between the slider 5 and the damping shaft of the second baffle 32 will all fail under the pressure of the shockwave, causing the explosion-proof and sand-proof component 3 to change as follows: Figure 4 As shown in the diagram, the first baffle 31 will block the air passage 2, which can prevent the strong air pressure from entering the door body 1, thereby effectively blocking the explosion shock wave and preventing it from damaging the interior of the door body.

[0021] The above descriptions are merely embodiments of the present invention, and common technical solutions or characteristics known in the schemes are not described in detail here. For those skilled in the art, various modifications and improvements can be made without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A blast wave valve with sand-proof function, characterized in that: The system includes a door body (1), which has several air channels (2) inside. The air channels (2) pass through the door body (1). The center of each air channel (2) has a U-shaped structure. An explosion-proof and sand-proof assembly (3) is installed on the outside of the door body (1). The explosion-proof and sand-proof assembly (3) includes a first baffle (31) and a second baffle (32). The first baffle (31) is rotatably connected to the door body (1). Sliding grooves (4) are provided on both sides of the door body (1). A slider (5) is slidably connected inside the groove (4). A magnet (6) is provided at the top of both the inside of the groove (4) and the top of the slider (5). The side of the slider (5) is rotatably connected to the second baffle (32). One end of the second baffle (32) is rotatably connected to the first baffle (31), and the other end is rotatably connected to the side of the slider (5). A vent hole (33) is provided on the second baffle (32), and external air enters the interior through the vent hole (33) and the air channel (2).

2. The explosion-proof wave valve with sand-proof function according to claim 1, characterized in that: The air channel (2) has a sand outlet channel (7) at the bottom of its U-shaped structure. The sand outlet channel (7) connects the outside to the air channel (2). A baffle plate (8) is bolted to the outlet of the sand outlet channel (7).

3. A sand-proof explosion-proof valve with anti-sand function according to claim 2, characterized in that: The sand outlet channel (7) is an inclined structure.

4. A sand-proof explosion-proof valve with anti-sand function according to claim 1, characterized in that: The explosion-proof and sand-proof component (3) is connected to sand-blocking plates (9) on both sides. The sand-blocking plates (9) are used to prevent sand and dust from entering from both sides of the explosion-proof and sand-proof component (3).

5. A sand-proof blast wave valve with anti-sand function according to claim 1, characterized in that: The first baffle (31) and the door body (1) are rotatably connected by a damping shaft, as are the slider (5) and the second baffle (32).

Images