Explosion-proof explosion venting wall capable of preventing secondary explosion and splashing

Abstract

The utility model belongs to the technical field of explosion prevention and explosion venting of building walls, and particularly relates to an explosion prevention and explosion venting wall capable of preventing secondary explosion and splashing. Comprising an explosion-proof explosion venting wall main body, the number of the steel frameworks is four, and the four steel frameworks define a frame to be installed on the inner side of the front face of the explosion-proof and explosion-venting wall body. The rolling bearings are arranged between the upper steel framework and the lower steel framework side by side; the explosion venting filling wall is mounted in the steel framework; and the explosion-proof steel plate is mounted on the back surface of the explosion-proof explosion venting wall main body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building wall explosion-proof and explosion venting, and particularly relates to an explosion-proof and explosion venting wall capable of preventing secondary explosion and splashing. BACKGROUND

[0002] Large processing plants have high-temperature and high-pressure working properties, and thus contain explosion combustion hazards. Enterprises such as chemical industry, wood processing, grain and beverage processing have secondary explosion hazards. The first explosion gas wave blows up dust deposited on equipment and the ground or combustible gas is affected by the shock wave and leaks out. A negative pressure is formed in the explosion center in a short time after the explosion, and external oxygen rushes in from the outside to mix with the raised dust and combustible medium, thereby causing a second explosion.

[0003] The explosion venting wall includes a light and fragile wall and a light pressure relief wall, which can be blown open to release pressure when an explosion occurs. Splashing dust or debris often causes damage to personnel and equipment that cannot be ignored. Therefore, an explosion-proof and explosion venting wall with a traction device is proposed to solve the problems mentioned above. SUMMARY

[0004] The utility model discloses in order to solve the secondary explosion that large processing plant can take place after explosion and the existence problem such as harm to equipment and personnel after the explosion venting wall breaks, provide an explosion-proof and explosion venting wall capable of preventing secondary explosion and splashing.

[0005] The utility model discloses the following technical scheme: an explosion-proof and explosion venting wall capable of preventing secondary explosion and splashing, comprising:

[0006] An explosion venting wall main body;

[0007] Four steel skeletons are arranged, and the four steel skeletons are arranged to form a frame and are installed on the inner side of the front face of the explosion venting wall main body;

[0008] A plurality of rolling bearings are arranged and are installed side by side between the upper and lower two steel skeletons;

[0009] An explosion venting filling wall is installed in the steel skeleton;

[0010] An explosion-proof steel plate is installed on the back face of the explosion venting wall main body.

[0011] In some embodiments, a plurality of U-shaped grooves are left on the steel skeleton, and the explosion venting filling wall is connected to the U-shaped grooves of the steel skeleton through high-strength bolts and explosion-proof gaskets.

[0012] The rolling bearing comprises:

[0013] Rolling bearing inner ring, which is connected to the upper and lower steel frames;

[0014] Rolling bearing roller, which is installed at both ends of the rolling bearing inner ring;

[0015] Rolling bearing outer ring, which is sleeved on the rolling bearing inner ring;

[0016] Longitudinal steel strip, which is arranged with four vertical welding along the rolling bearing outer ring.

[0017] In some embodiments, the explosion-proof steel plate is connected to the explosion-proof and venting wall body through a traction cable assembly, and the traction cable assembly is connected with self-tapping screws at both ends for connecting the explosion-proof and venting wall body and the explosion-proof steel plate, respectively.

[0018] In some embodiments, the inner wall of the explosion-proof steel plate is sprayed with a polyurea coating.

[0019] In some embodiments, the traction cable assembly includes a pull-out connector, and the pull-out connector extends out the traction cable at both ends.

[0020] In some embodiments, the venting filling wall is selected to be a foam concrete with an outer layer of rock wool.

[0021] In some embodiments, the outer wall of the rolling bearing outer ring is sprayed with a polyurea coating.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] (1) The utility model relates to three aspects in structure, one of which is that the high-damping rolling bearing can dissipate energy through the rotation of the roller when subjected to explosion impact load; the second is that the venting wall filled with foam concrete can dissipate the huge energy generated by the explosion through its own crushing when subjected to explosion impact; and the third is that the traction cable with a pull-out connector is connected with the explosion-proof steel plate, which can hold the broken foam concrete through the traction cable when subjected to the explosion impact for the first time, preventing the broken body from splashing and causing harm to personnel and equipment, wherein the traction cable can return to the original position after the energy is dissipated due to the pull-out connector, and can still play a role when subjected to a secondary explosion.

[0024] (2) The utility model patent adopts a polyurea spraying method in the aspect of explosion prevention, and the bolts used in the structure are high-strength anti-explosion bolts, which are used in combination with explosion-proof gaskets, the venting wall is filled with foam concrete, and the outer layer is covered with rock wool, so as to ensure that the fireproof performance is met.

[0025] (3) The quick-mounting assembly is convenient for recycling and installing the explosion-proof steel plate and the traction cable, and reduces the workload of workers in high-altitude operation. DETAILED DESCRIPTION

[0026] Figure 1 is a perspective view of the utility model;

[0027] Figure 2 is a plan view of the utility model;

[0028] Figure 3 is an external view of the explosion venting filler wall in the utility model;

[0029] Figure 4 is an external view of the rolling bearing in the utility model;

[0030] Figure 5 is an external view of the traction device in the utility model;

[0031] Marked number in the drawing: 1, explosion venting wall main body; 2, steel framework; 3, rolling bearing; 4, U-shaped groove; 5, explosion-proof steel plate; 6, self-tapping screw; 7, traction steel cable with pull-out connector; 8, high-strength bolt; 9, explosion venting filler wall; 10, rolling bearing inner ring; 11, rolling bearing roller; 12, rolling bearing outer ring; 13, through steel bar; 14, traction steel cable; 15, pull-out connector. DETAILED DESCRIPTION

[0032] The technical solutions in the utility model patent embodiment will be clearly and completely described below with reference to the drawings in the utility model patent embodiment. Obviously, the described embodiments are only part of the embodiments of the utility model patent, but the utility model patent is not limited to these embodiments.

[0033] As shown in Figures 1-5 , an explosion venting wall for preventing secondary explosion and splash, characterized in that, comprising:

[0034] explosion venting wall main body 1;

[0035] steel framework 2, the steel framework 2 is provided with four, and the four steel frameworks 2 are installed on the inner side of the front face of the explosion venting wall main body 1 and form a frame;

[0036] rolling bearing 3, the rolling bearing 3 is provided with multiple, and is installed between the upper and lower two steel frameworks 2 side by side;

[0037] explosion venting filler wall 9, the explosion venting filler wall 9 is installed in the steel framework 2;

[0038] explosion-proof steel plate 5, the explosion-proof steel plate 5 is installed on the back of the explosion venting wall main body 1.

[0039] The steel framework 2 is provided with multiple U-shaped grooves 4, and the explosion venting filler wall 9 is connected to the U-shaped grooves 4 of the steel framework 2 through high-strength bolts 8 and explosion-proof gaskets.

[0040] The rolling bearing 3 comprises:

[0041] Rolling bearing inner ring 10, which is connected to the upper and lower steel frames 2;

[0042] Rolling bearing roller 11, which is installed at both ends of the rolling bearing inner ring 10;

[0043] Rolling bearing outer ring 12, which is sleeved on the rolling bearing inner ring 10;

[0044] Longitudinal steel strip 13, which is provided with four longitudinal steel strips welded at equal intervals along the rolling bearing outer ring 12.

[0045] The explosion-proof steel plate 5 is connected to the explosion-proof wall body 1 through the traction cable assembly 7, and the traction cable assembly 7 is connected to the self-tapping screw 6 at both ends for connecting the explosion-proof wall body 1 and the explosion-proof steel plate 5, respectively.

[0046] As shown in Figures 1-4 , the traction cable 7 of the pull-out connector is provided with self-tapping screws at both ends, which are used to fix the explosion-proof wall body 1 and the explosion-proof steel plate 5, respectively, to prevent the screws from falling off due to excessive explosion energy; 28 high-strength bolts 8 are arranged at the upper and lower ends of the explosion venting filler wall 9, which are fixed with explosion-proof gaskets and steel frames 2, and the high-strength bolts 8 can be reused after the explosion venting filler wall is broken; the rolling bearing 3 includes a rolling bearing inner ring 10, a rolling bearing roller 11, a rolling bearing outer ring 12 and a longitudinal steel strip 13, the damping of the rolling bearing roller 11 can be adjusted, and the longitudinal steel strip 13 is welded at equal intervals along the rolling bearing outer ring 12, and the high-damping roller of the utility model is selected to cooperate with the longitudinal steel strip 13 for energy consumption.

[0047] As shown in Figure 3 , the explosion venting filler wall 9 is selected to be foamed concrete with rock wool on the outside, and the foamed concrete filler wall is broken and energy is released when it is subjected to explosion impact load.

[0048] As shown in Figure 4 , the rolling bearing outer ring 12 is sprayed with a polyurea coating on the outside to enhance its anti-explosion performance and prolong its service life.

[0049] As shown in Figure 2 and Figure 5 , the inner wall of the explosion-proof steel plate 5 is sprayed with a polyurea coating, and the traction cable 14 is connected through the pull-out connector 15, and when subjected to the first explosion impact, the explosion venting filler wall 9 is broken and splashed, the explosion-proof steel plate 5 is held by the traction cable 14 to prevent damage to personnel and equipment, and the traction cable 14 is restored to the initial state under the tension of the pull-out connector 15 after the explosion, and the explosion-proof steel plate 5 can still play a role when subjected to the second explosion impact, meeting the requirements of anti-explosion and explosion venting.

[0050] The above merely describes a preferred embodiment of the present utility model patent, but the protection scope of the present utility model patent is not limited to this. Any person skilled in the art, within the technical scope disclosed by the present utility model patent, according to the technical scheme and the utility model patent concept of the present utility model patent, makes equivalent replacement or changes, should be covered in the protection scope of the present utility model patent.

Claims

1. An explosion-proof and venting wall that prevents secondary explosions and splashes, characterized in that: include: Explosion-proof and explosion-relief wall main body (1); Steel frames (2), wherein four steel frames (2) are provided, and the four steel frames (2) form a frame and are installed on the inner side of the front of the explosion-proof and explosion-relief wall body (1); Rolling bearings (3), wherein a plurality of rolling bearings (3) are provided and installed side by side between the upper and lower steel frames (2); An explosion-proof filling wall (9), wherein the explosion-proof filling wall (9) is installed in the steel frame (2); An explosion-proof steel plate (5) is installed on the back of the explosion-proof and explosion-relief wall body (1).

2. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 1 is characterized in that: A plurality of U-shaped grooves (4) are left on the steel frame (2), and the peripheral sides of the explosion relief filling wall (9) are connected to the U-shaped grooves (4) of the steel frame (2) through high-strength bolts (8) and explosion-proof gaskets.

3. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 1 is characterized in that: The rolling bearing (3) comprises: A rolling bearing inner ring (10), the rolling bearing inner ring (10) being connected to the upper and lower steel frames (2) along its entire length; Rolling bearing rollers (11), the rolling bearing rollers (11) being mounted on both ends of the rolling bearing inner ring (10); A rolling bearing outer ring (12), wherein the rolling bearing outer ring (12) is sleeved on the rolling bearing inner ring (10); Four through-length steel bars (13) are provided and are welded at equal intervals vertically along the outer ring (12) of the rolling bearing.

4. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 1 is characterized in that: The explosion-proof steel plate (5) is connected to the explosion-proof and explosion-relief wall body (1) via a traction cable assembly (7), and self-tapping screws (6) are connected to both ends of the traction cable assembly (7) for respectively connecting the explosion-proof and explosion-relief wall body (1) and the explosion-proof steel plate (5).

5. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 4 is characterized in that: The inner wall of the explosion-proof steel plate (5) is sprayed with a polyurea coating.

6. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 4 is characterized in that: The traction steel cable assembly (7) comprises a pull-out connector (15), with traction steel cables (14) extending from both ends of the pull-out connector (15).

7. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 1 is characterized in that: The explosion relief filling wall (9) is made of foam concrete with rock wool laid on the outside.

8. The explosion-proof and venting wall for preventing secondary explosion and splashing according to claim 3 is characterized in that: The outer ring (12) of the rolling bearing is sprayed with a polyurea coating.

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