Simple liquefied gas explosion-proof system

Abstract

The utility model discloses a simple liquefied gas explosion-proof system, and belongs to the technical field of liquefied gas explosion-proof devices. The wall comprises a wall body which forms a U shape in a surrounding mode. A protective partition plate is installed at the position close to the back side of the wall body. An entrance is formed in the protective partition plate, and a protective door is movably mounted at the entrance; an explosion-proof box is placed in an area defined by the protective partition plate and the wall body; the explosion-proof box is of a U-shaped plate structure which is vertically placed; the liquefied gas steel tank is placed on the inner side of the explosion-proof box; the explosion-proof liquefied gas steel tank effectively solves the problem that the existing liquefied gas steel tank placed in an indoor living area on a construction site does not have explosion-proof measures and has certain potential safety hazards.

Description

Technical Field

[0001] This utility model relates to the technical field of liquefied gas explosion-proof devices, and specifically to a simple liquefied gas explosion-proof system. Background Technology

[0002] Liquefied petroleum gas (LPG) steel cylinders are widely used in the living areas of construction sites. LPG steel cylinders are generally placed directly indoors, and due to cost considerations, complex explosion-proof measures are not installed. However, objectively speaking, this poses certain safety risks and may lead to safety accidents. Therefore, it is necessary to design an explosion-proof system for LPG steel cylinders that is relatively inexpensive and has a simple and reliable structure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a simple liquefied gas explosion-proof system to solve the problem that the liquefied gas steel tanks placed in the indoor living areas of construction sites do not have explosion-proof measures and pose certain safety hazards.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A simple liquefied petroleum gas (LPG) explosion-proof system includes a U-shaped wall; a protective partition installed near the back of the wall; an entrance / exit on the protective partition, with a movably installed protective door at the entrance / exit; an explosion-proof box placed in the area enclosed by the protective partition and the wall; the explosion-proof box is a vertically placed U-shaped plate structure; and an LPG steel cylinder is placed inside the explosion-proof box.

[0006] Preferably, the distance between the protective partition and the back side of the wall is 1.3-1.8m.

[0007] Preferably, one side of the protective door is rotatably hinged to the protective partition; a positioning plate with a hole to be opened is provided on the other side of the protective door and at the corresponding position on the protective partition, and the protective door and the protective partition are detachably connected at the positioning plate by a pin.

[0008] Preferably, at least three outwardly extending support plates are provided at the bottom of the explosion-proof box; movable casters are installed at the bottom of the support plates; the casters can drive the explosion-proof box on the upper side to move.

[0009] Furthermore, the support plate has an L-shaped structure; the back end of the support plate is attached to the outer end of the explosion-proof box, and the other end extends horizontally outward, with casters installed below the horizontally extended end of the support plate.

[0010] Preferably, connecting rods are provided on the two opposite end faces on the upper side of the explosion-proof box; and several reinforcing ribs are provided in the planar area enclosed by the connecting rods and the three inner end faces of the explosion-proof box.

[0011] Preferably, the explosion-proof box has a length and width of 0.4-0.6m and a height of 1.1-1.5m. The explosion-proof box is made of 3mm steel plate through sheet metal processing.

[0012] Preferably, the protective partition includes a grid-like support frame on which several steel plates are welded and installed; the protective door is also made of steel plate.

[0013] The beneficial effects of this utility model are reflected in the following aspects:

[0014] 1. The core components such as explosion-proof boxes, protective partitions, and protective doors are mainly made of ordinary steel plates through conventional sheet metal and welding processes. The materials are readily available and the processing is simple, which significantly reduces the manufacturing cost. They are suitable for large-scale deployment and application in the living areas of construction sites with limited budgets.

[0015] 2. The system has a simple design and is mainly composed of walls, protective partitions, protective doors, and explosion-proof boxes. The explosion-proof boxes can effectively block, absorb, and guide potential explosive shock waves and debris, greatly reducing the risk of direct injury to surrounding personnel and equipment. The protective partitions can further weaken the energy of the shock wave.

[0016] 3. The protective door adopts a hinged connection and pin fixing method, which is flexible in opening and closing and firm and reliable after closing, making it easy to open and close, replace steel tanks and inspect and handle daily; the overall structure has no complex electrical or mechanical parts, and the daily maintenance requirements are low.

[0017] 4. The bottom of the explosion-proof box is equipped with a support plate with casters, which allows the box to be adjusted to the corresponding position according to the placement location, making it convenient to adjust the position according to the site layout.

[0018] 5. It cleverly utilizes indoor corners or walls to form a semi-enclosed protective space, occupying a small floor area; the protective partition structure composed of a grid support frame and flat panels reduces weight while ensuring strength; and it is easy to construct.

[0019] 6. Compared to placing liquefied gas cylinders directly indoors, this system provides a physical barrier and isolation space, which greatly reduces the severity of the consequences of an explosion caused by accidental leakage, heating or physical impact of the cylinder, and provides basic and critical passive safety protection for the living areas of construction sites. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention in an embodiment;

[0021] Figure 2 This is a schematic diagram of the installation of the protective partition and the protective door in this embodiment;

[0022] Figure 3This is a three-dimensional structural diagram of the explosion-proof box in this embodiment;

[0023] Explanation of reference numerals in the attached diagram: 1. Wall, 2. Protective partition, 3. Protective door, 4. Explosion-proof box, 5. Support plate, 6. Casters, 7. Connecting rod, 8. Reinforcing rib. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0025] Example:

[0026] Reference Figure 1 This embodiment provides a simple liquefied petroleum gas (LPG) explosion-proof system. It includes a U-shaped wall 1, typically utilizing existing three walls within a building. A protective partition 2 is installed near the back of the wall 1. The partition 2 is fixed to the ground by welding or high-strength bolts, maintaining connection to both ends of the wall 1 to ensure overall structural stability. An entrance / exit is provided on the partition 2, with a movable protective door 3 at each entrance / exit. The size of the protective door 3 must allow personnel easy access for operation and maintenance. An explosion-proof box 4 is placed within the area enclosed by the partition 2 and the wall 1. This area forms a buffer zone, isolating the explosion-proof box 4 and its internal LPG tank from the external environment. The explosion-proof box 4 is a vertically placed U-shaped structure; the LPG tank is placed inside the explosion-proof box 4. It is important to avoid placing the explosion-proof box 4 near the protective door.

[0027] The distance between the protective partition 2 and the back side of the wall 1 is 1.3-1.8m. This distance is designed to provide sufficient safety buffer space so that when the liquefied gas tank explodes inside the explosion-proof box 4, it can effectively attenuate the shock wave energy and contain possible debris splashes, reducing the direct impact on the protective partition 2.

[0028] One side of the protective door 3 is rotatably hinged to the protective partition 2. Positioning plates with through holes are provided on the other side of the protective door 3 and at corresponding positions on the protective partition 2. The protective door 3 and the protective partition 2 are detachably connected at the positioning plates by pins. When entering the protected area for changing gas cylinders or routine inspections, the operator simply pulls out the pins connecting the positioning plates to open the protective door 3 outwards. After operation, the protective door 3 is closed, the through holes on the positioning plates are aligned, and the pins are inserted to securely lock it in place. The operation is simple and quick, and ensures stability when closed.

[0029] At least three outwardly extending support plates 5 are provided at the lower part of the explosion-proof box 4; in this embodiment, four support plates are used, respectively provided on two opposite end sides of the explosion-proof box; movable casters 6 are installed at the lower part of the support plates 5; the casters 6 can drive the upper explosion-proof box 4 to move. The casters 6 are usually equipped with a locking device such as a brake pad, which can lock the casters to prevent them from sliding accidentally after the explosion-proof box 4 moves to the predetermined position.

[0030] The support plate 5 has an L-shaped structure. The back end of the support plate 5 is attached to the outer end of the explosion-proof box 4 and fixed by welding or bolts. The other end extends horizontally outward, and the caster wheel 6 is installed below the horizontally extended end of the support plate 5. This L-shaped structure design provides sufficient support arm to ensure stability, while also placing the installation point of the caster wheel 6 outside the projection range of the main body of the explosion-proof box 4, facilitating movement and operation.

[0031] Connecting rods 7 are provided on the two opposite end faces of the upper side of the explosion-proof box 4; several reinforcing ribs 8 are also provided in the planar area enclosed by the connecting rods 7 and the three inner end faces of the explosion-proof box 4. In this embodiment, both the connecting rods 7 and the reinforcing ribs are supported by steel bars. The reinforcing ribs 8 are welded triangularly between the connecting rods 7 and the inner wall of the explosion-proof box 4, which significantly enhances the overall rigidity and deformation resistance of the top of the explosion-proof box 4, preventing the box from collapsing or tearing under the influence of the external environment.

[0032] The explosion-proof box 4 has a length and width of 0.4-0.6m and a height of 1.1-1.5m. The explosion-proof box 4 is made of 3mm Q235 steel plate through sheet metal processing.

[0033] The protective partition 2 includes a grid-like support frame, which is typically made of angle steel or square tubing welded into an interlaced grid structure to provide the main load-bearing skeleton; several steel plates are welded and installed on the support frame; these plates cover the grid frame to form a continuous protective surface that can both block debris and effectively disperse impact force; the plates are welded and fixed to each other; the protective door 3 is also made of steel plate.

[0034] The core technical principle of this utility model lies in the combination of multi-layer physical barriers and shock wave energy dissipation to achieve simple and effective passive explosion protection.

[0035] The core protective layer is an explosion-proof enclosure: the U-shaped steel plate structure of the explosion-proof enclosure 4 is placed close to the liquefied gas tank, forming the innermost and most direct layer of protection. Its robust steel plate structure effectively blocks and absorbs debris: in the event of a tank rupture, it blocks high-speed flying metal fragments. Reinforcing ribs 8 and connecting rods 7 greatly enhance the rigidity of the enclosure's top, resisting impact pressure.

[0036] The area enclosed by the protective partition and the wall forms a buffer isolation layer; this allows the shock wave emanating from the open side of the explosion-proof box 4 to rapidly decrease in pressure and significantly attenuate its energy after entering this open area.

[0037] The secondary protective layer is a protective partition; it can further block potentially penetrating debris and attenuated shock waves; its grid frame structure reduces weight while ensuring strength.

[0038] This utility model achieves effective primary physical explosion-proof isolation for liquefied gas steel tanks with its extremely simple structure and low cost. The structure is robust and reliable, and it is easy to operate and move. It is particularly suitable for application in scenarios such as construction sites where safety investment is limited but risks exist, and can significantly improve the level of on-site safety.

Claims

1. A simple liquefied gas explosion-proof system, characterized in that: It includes a wall (1) forming a U-shape; a protective partition (2) is installed near the back of the wall (1); an entrance and exit are opened on the protective partition (2), and a protective door (3) is movably installed at the entrance and exit; an explosion-proof box (4) is placed in the area enclosed by the protective partition (2) and the wall (1); the explosion-proof box (4) is a U-shaped plate structure placed vertically; the liquefied gas steel tank is placed inside the explosion-proof box (4).

2. The simplified liquefied gas explosion-proof system according to claim 1, characterized in that: The distance between the protective partition (2) and the back side of the wall (1) is 1.3-1.8m.

3. A simplified liquefied gas explosion-proof system according to claim 1, characterized in that: One side of the protective door (3) is rotatably hinged to the protective partition (2); on the other side of the protective door (3) and at the corresponding position on the protective partition (2), there are positioning plates with holes to be opened. The protective door (3) and the protective partition (2) are detachably connected at the positioning plates by pins.

4. A simplified liquefied gas explosion-proof system according to claim 1, characterized in that: At least three outwardly extending support plates (5) are provided at the lower part of the explosion-proof box (4); movable casters (6) are installed at the lower part of the support plates (5); the casters (6) can drive the upper explosion-proof box (4) to move.

5. A simplified liquefied gas explosion-proof system according to claim 4, characterized in that: The support plate (5) is an L-plate structure; the back end of the support plate (5) is attached to the outer end of the explosion-proof box (4), and the other end extends horizontally outward. The caster wheel (6) is installed below the horizontally extended end of the support plate (5).

6. A simplified liquefied gas explosion-proof system according to claim 1, characterized in that: Connecting rods (7) are provided on the two opposite end faces of the upper side of the explosion-proof box (4); and several reinforcing ribs (8) are provided in the plane area enclosed by the connecting rods (7) and the three inner end faces of the explosion-proof box (4).

7. A simplified liquefied gas explosion-proof system according to claim 1, characterized in that: The explosion-proof box (4) has a length and width of 0.4-0.6m and a height of 1.1-1.5m. The explosion-proof box (4) is made of 3mm steel plate through sheet metal processing.

8. A simplified liquefied gas explosion-proof system according to claim 1, characterized in that: The protective partition (2) includes a grid-like support frame on which several steel plates are welded and installed; the protective door (3) is also made of steel plate.

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