Guide cover for explosion venting plate

Abstract

The guide cover for the explosion venting plate comprises a flow guide cover arranged outside the explosion venting plate, an opening is formed in the flow guide cover, the opening of the flow guide cover is obliquely and upwards arranged so as to guide explosion airflow sprayed out of the explosion venting plate, and the flow guide cover is arranged in a foldable mode. In the explosion venting process of the explosion venting plate, the jetting direction of high-speed airflow can be controlled, and the possibility that the airflow hurts surrounding personnel during explosion venting is reduced.

Description

Technical Field

[0001] This application relates to the technical field of industrial safety equipment, and particularly relates to a guiding cover for a pressure relief panel. Background Art

[0002] In industries such as chemical engineering, petroleum, coal mines, and energy storage, as an important safety protection device, pressure relief panels are widely used to prevent explosion pressure from damaging equipment and buildings. However, during the pressure relief process of traditional pressure relief panels, the high-speed airflow often has strong impact force and destructiveness. If not effectively controlled and guided, it may also cause harm to surrounding personnel. Utility Model Content

[0003] In order to control the ejection direction of the high-speed airflow during the pressure relief process of the pressure relief panel and reduce the possibility of airflow harming surrounding personnel during pressure relief, this application provides a guiding cover for a pressure relief panel.

[0004] A guiding cover for a pressure relief panel provided by this application adopts the following technical solutions:

[0005] A guiding cover for a pressure relief panel includes a guiding cover arranged outside the pressure relief panel. An opening is provided on the guiding cover to be able to guide the explosion airflow ejected from the pressure relief panel, and the guiding cover is foldably arranged.

[0006] By adopting the above technical solution, the guiding cover is arranged outside the pressure relief panel, which can guide the explosion airflow ejected from the pressure relief panel to flow in a predetermined direction. This guiding effect reduces the situation of unordered airflow ejection, effectively reduces the harm of the airflow to the ground and surrounding personnel, and the foldable arrangement of the guiding cover is beneficial to reducing its occupied space.

[0007] Optionally, the guiding cover includes a base, and a baffle plate movably arranged on the base. A foldable side plate is arranged between the baffle plate and the base. The side plate and the baffle plate enclose the guiding cover, and a limiter is arranged on the base. The limiter is used to assist in folding the guiding cover.

[0008] By adopting the above technical solution, the baffle plate and the side plate on the base can be foldably combined into a guiding cover, and the folding process is assisted by the limiter. The technical effect of this design is that it can keep the baffle plate in a folded state. During the pressure relief of the pressure relief panel, the guiding cover is pushed by the pressure relief gas to unfold, realizing the guiding of the pressure relief gas, and the folding of the guiding cover under normal conditions can reduce the space occupation.

[0009] Optionally, the surface of the base for installing the side plate is the installation surface, and the upper end of the installation surface is inclined away from the target device.

[0010] By adopting the above technical solution, the design of the inclined installation surface enables the side plate to naturally form an inclined angle during installation, which is beneficial for guiding fluid or explosion shock and quickly opening the baffle.

[0011] Optionally, the limiter includes a hook plate, the hook plate is connected to the base or the target device through a connecting piece, and at least one of the hook plate and the connecting piece is made of an elastic material. A slot for inserting the hook plate is formed on the baffle, and the hook plate can be clamped into the slot to limit the baffle from detaching from the hook plate.

[0012] By adopting the above technical solution, the cooperation between the hook plate connected by the connecting piece and the slot realizes the stability of the baffle in the closed state and prevents accidental opening due to external force.

[0013] Optionally, the connecting piece is an elastic plate fixedly connected to the base or the target device, and the hook plate is fixedly connected to the end of the elastic plate.

[0014] By adopting the above technical solution, the hook plate is fixedly connected to the end of the elastic plate, and the elastic effect of the elastic plate can ensure the close fit between the hook plate and the slot, further enhancing the limiting effect.

[0015] Optionally, the limiter includes a tightening rod, the tightening rod is adjustably arranged on one of the baffle and the base, and a groove is formed on the other component for inserting the tightening rod, and the tightening rod can abut against the inner wall of the groove to limit the movement of the baffle relative to the base.

[0016] By adopting the above technical solution, the cooperation design of the tightening rod and the groove provides an adjustable limiting method, and the user can adjust the position of the tightening rod as needed, and then the baffle can be flipped.

[0017] Optionally, the tightening rod penetrates through the baffle, and an end plate is arranged at one end of the tightening rod. A limiting ring is threadedly connected to the tightening rod, and the limiting ring and the end plate cooperate to clamp the baffle.

[0018] By adopting the above technical solution, the clamping cooperation of the end plate, the limiting ring and the baffle realizes the stable installation of the tightening rod on the baffle. At the same time, the threaded connection of the limiting ring also facilitates the user to adjust the position of the tightening rod on the baffle as needed.

[0019] Optionally, an anti-slip sleeve is sleeved outside the tightening rod and / or inside the groove.

[0020] By adopting the above technical solution, setting a sliding sleeve on at least one of the tightening rod and the groove can increase the friction between the tightening rod and the inner wall of the groove.

[0021] Optionally, a bottom plate is hinged to the base, and a limiting strip is provided on the bottom plate for abutting against the baffle plate.

[0022] By adopting the above technical solution, the design of the bottom plate and the limiting strip provides an additional support and limiting point for the baffle plate. When the baffle plate is in the open state, the limiting strip can abut against the baffle plate and limit its movement, thereby enhancing the sealing performance and stability of the flow deflector.

[0023] Optionally, the limiting strip is hook-shaped, and a clamping groove for cooperating with the limiting strip is provided on the baffle plate.

[0024] By adopting the above technical solution, the hook-shaped design of the limiting strip makes its cooperation with the clamping groove closer and more reliable, and can effectively prevent the baffle plate from accidentally detaching under the action of external forces.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The flow deflector is arranged outside the explosion vent plate, which can guide the explosion airflow ejected from the explosion vent plate to flow in a predetermined direction, so as to reduce the situation of unregulated airflow ejection, and effectively reduce the harm of the airflow to the ground and surrounding personnel;

[0027] 2. The foldable design of the flow deflector is convenient for storage and transportation, and is beneficial to reducing the space occupied by the flow deflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present application.

[0029] Figure 2 is a schematic diagram of the structure of Embodiment 1 of the present application for showing the unfolded state of the flow deflector.

[0030] Figure 3 is a schematic diagram of the structure of Embodiment 1 of the present application for showing the bottom plate.

[0031] Figure 4 is a schematic diagram of the structure of Embodiment 1 of the present application for showing the limiter.

[0032] Figure 5 is a schematic diagram of the structure of Embodiment 2 of the present application for showing the mounting surface.

[0033] Figure 6 is Figure 5 an enlarged schematic diagram of part A in

[0034] Figure 7 is a schematic diagram of the structure of Embodiment 3 of the present application for showing the limiter.

[0035] Description of reference numerals: 1, base; 11, baffle; 12, side plate; 13, flow deflector; 14, limiter; 15, bottom plate; 16, limiting strip; 2, pressing rod; 21, end plate; 22, limiting ring; 23, kidney-shaped hole; 24, groove; 3, elastic plate; 31, hook plate; 32, card slot; 33, slot. Detailed implementation manners

[0036] The following further describes the present application in conjunction with the attached Figure 1-7 drawings. Embodiment 1

[0037] The embodiment of the present application discloses a flow deflector for a blast relief panel. As Figure 1 and Figure 2 , the flow deflector for a blast relief panel includes a flow deflector 13 covering the blast relief panel, and an inclined upward opening is provided on the flow deflector 13 for guiding the airflow of the blast relief of the blast relief panel. The flow deflector 13 is foldably arranged, and the flow deflector 13 includes a base 1, a baffle 11 and a side plate 12. The base 1 serves as a support structure for the entire flow deflector 13, and its shape and size are designed according to actual needs, usually in a rectangular frame shape or a circular frame shape to match the blast relief panel.

[0038] The baffle 11 is movably arranged on the base 1. The shape and size of the baffle 11 match those of the base 1, and both sides of the baffle 11 in the horizontal direction are connected to the base 1 through side plates 12. The side plate 12 is a foldable structure, one end of which is connected to the edge of the mounting surface of the base 1, and the other end is connected to the side of the baffle 11.

[0039] Among them, the side plate 12 can be a flexible curtain or composed of multiple rigid plates hinged to each other. In the embodiment of the present application, the side plate 12 includes a plurality of mutually hinged metal plates. The metal plate close to the base 1 is hinged to the base 1, and the metal plate close to the baffle 11 is hinged to the baffle 11.

[0040] As Figure 3 and Figure 4 , when the side plate 12 is unfolded, it jointly forms a semi-closed flow deflector 13 with the base 1 and the baffle 11; when the side plate 12 is folded, it is convenient for the storage of the flow deflector 13 and reduces its space occupation. A limiter 14 for assisting in folding the flow deflector 13 is provided between the baffle 11 and the base 1.

[0041] The stopper 14 includes a hook plate 31. The hook plate 31 is connected to the base 1 or the target device through a connecting member, and at least one of the hook plate 31 and the connecting member is made of an elastic material. In the embodiment of the present application, both the hook plate 31 and the connecting member are made of an elastic material. The connecting member is an elastic plate 3, and the elastic plate 3 is fixedly connected to the base 1. One end of the elastic plate 3 away from the base 1 is connected to the hook plate 31. A slot 33 is provided at the position corresponding to the hook plate 31 on the baffle 11 for the hook plate 31 to be inserted. After the hook plate 31 is inserted into the slot 33, the hook plate 31 abuts against the side of the baffle 11 facing away from the explosion vent plate, so as to limit the movement of the baffle 11 in the direction away from the explosion vent plate, and keep the flow guide cover 13 in a folded and stored state. In the embodiment of the present application, the elastic plate 3 is bent in a "U" shape. One end of the elastic plate 3 away from its own opening is fixedly connected to the base 1, and the two end portions of the elastic plate 3 near the opening are bent in opposite directions to form the hook plate 31.

[0042] When the explosion vent plate is opened due to an explosion in the target device, the airflow impacts and opens the explosion vent piece, and pushes the protective cover outside the explosion vent piece to turn outwards. The outward turning of the protective cover then pushes the baffle 11 to move in the direction away from the explosion vent plate. During the movement of the baffle 11 under the thrust, the elastic plate 3 undergoes elastic deformation, so that the hook portion 31 on the elastic plate 3 disengages from the slot 33, and thus the flow guide cover 13 can be smoothly opened.

[0043] To further enhance the stability of the flow guide cover 13, a bottom plate 15 is hinged to the base 1, and a limiting strip 16 is provided on the side of the bottom plate 15 away from the base 1. When the bottom plate 15 and the baffle 11 are unfolded, the limiting strip 16 on the bottom plate 15 follows the flipping of the bottom plate 15 and supports on the baffle 11.

[0044] As Figure 2 and Figure 3 , the limiting strip 16 in the present application is hook-shaped. When the limiting strip 16 is flipped to fit the explosion vent plate, the opening of the hook portion of the limiting strip 16 is arranged in the direction away from the explosion vent plate. The baffle 11 is provided with a slot 32 for the limiting strip 16 to be clamped. When the bottom plate 15 and the baffle 11 are unfolded, the limiting strip 16 on the bottom plate 15 can be buckled with the slot wall of the slot 32, so that the bottom plate 15 and the baffle 11 are mutually positioned after unfolding, thus forming a stable support structure, which is beneficial to improving the stability of the flow guide cover 13. Embodiment 2

[0045] As Figure 5 , this embodiment is basically the same as Embodiment 1, except that the surface of the base 1 for connecting the side plate is denoted as the installation surface, and the installation surface is arranged facing away from the explosion vent plate, and the upper end of the installation surface is inclined in the direction away from the explosion vent plate. Embodiment 3

[0046] As Figure 6 and Figure 7, this embodiment is basically the same as the first embodiment, except that the stopper 14 includes a pressing rod 2. The pressing rod 2 is disposed on one of the baffle 11 or the base 1, and a groove 25 is formed on the other component. In the embodiment of the present application, the pressing rod 2 is disposed on the baffle 11, and the groove 25 is disposed on the base 1. At least one pressing rod 2 is disposed on the baffle 11. The pressing rod 2 is movably disposed on the baffle 11, and the operator can adjust the position of the pressing rod 2 on the baffle 11. On the base 1, a groove 24 is formed at a position corresponding to the pressing rod 2. The shape and size of the groove 24 match those of the pressing rod 2 so that the pressing rod 2 can be inserted therein.

[0047] The pressing rod 2 is rod-shaped, and an end plate 21 is disposed at one end of the pressing rod 2. Threads are provided on the pressing rod 2, and a limiting ring 22 is threadedly connected to the pressing rod 2. A kidney-shaped hole 23 for the pressing rod 2 to pass through is formed on the baffle 11. The pressing rod 2 is disposed through the kidney-shaped hole 23. The baffle 11 is located between the limiting ring 22 and the end plate 21. The operator can tighten the limiting ring 22 to clamp the baffle 11, thereby fixing the position of the pressing rod 2 on the baffle 11. Subsequently, by rotating the limiting ring 22 on the pressing rod 2 to cooperate with the end plate 21 at one end of the pressing rod 2 to clamp the baffle 11, the baffle 11 is fixed at the required position. At this time, the other end of the pressing rod 2 abuts against the inner wall of the groove 24, and the movement of the baffle 11 is restricted by the frictional force between the inner wall of the groove and the outer wall of the pressing rod 2, thereby fixing the position of the baffle 11.

[0048] In order to reduce the situation where the baffle 11 is accidentally opened, an anti-slip sleeve (not shown in the figure) may be provided in the pressing rod 2 and / or the groove 24 in this embodiment. In the embodiment of the present application, the anti-slip sleeve is only provided at the end of the pressing rod 2 for abutting against the inner wall of the groove 24 to increase the frictional force between the inner wall of the groove 24 and the pressing rod 2.

[0049] The limiting strip 16 in the present application is plate-shaped, and there is no clamping groove 32 on the baffle 11. When the bottom plate 15 and the baffle 11 are unfolded, the limiting strip 16 on the bottom plate 15 can support on the inner wall of the baffle 11, so that the bottom plate 15 and the baffle 11 are positioned relative to each other after unfolding, thereby forming a stable support structure.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A guiding cover for a pressure relief panel, characterized in that: It includes a flow guide cover (13) arranged outside the explosion vent panel. An opening is provided on the flow guide cover (13) to be able to guide the explosion air flow ejected from the explosion vent panel, and the flow guide cover (13) is foldably arranged.

2. The blast relief panel guide cover according to claim 1, characterized in that: The guide cover includes a base (1) and a baffle (11) movably arranged on the base (1). A foldable side plate (12) is arranged between the baffle (11) and the base (1). The side plate (12) and the baffle (11) enclose the flow guide cover (13). A limiter (14) is arranged on the base (1), and the limiter (14) is used to assist in folding the flow guide cover (13).

3. The guide cover for a pressure relief panel according to claim 2, characterized in that: The surface of the base (1) for installing the side plate (12) is the installation surface, and the upper end of the installation surface is inclined away from the target device.

4. The blast relief panel guiding cover according to claim 2, characterized in that: The limiter (14) includes a hook plate (31). The hook plate (31) is connected to the base (1) or the target device through a connecting piece, and at least one of the hook plate (31) and the connecting piece is made of an elastic material. A slot (33) for inserting the hook plate (31) is provided on the baffle (11). The hook plate (31) can be clamped into the slot (33) to limit the baffle (11) from detaching from the hook plate (31).

5. The guiding cover for an explosion vent panel according to claim 4, wherein: The connecting piece is an elastic plate (3) fixedly connected to the base (1) or the target device, and the hook plate (31) is fixedly connected to the end of the elastic plate (3).

6. The blast relief panel guiding cover according to claim 2, wherein: The limiter (14) includes a tightening rod (2). The tightening rod (2) is adjustably arranged on one of the baffle (11) and the base (1), and a groove (24) is provided on the other component for inserting the tightening rod (2). The tightening rod (2) can abut against the groove wall of the groove (24) to limit the movement of the baffle (11) relative to the base.

7. The guiding cover for an explosion relief panel according to claim 6, characterized in that: The tightening rod (2) penetrates through the baffle (11), and an end plate (21) is arranged at one end of the tightening rod (2). A limiting ring (22) is threadedly connected to the tightening rod (2), and the limiting ring (22) and the end plate (21) cooperate to clamp the baffle (11).

8. The guiding cover for an explosion relief panel according to claim 7, characterized in that: An anti-slip sleeve is sleeved outside the tightening rod (2) and / or inside the groove (24).

9. The blast relief panel guiding cover according to claim 2, characterized in that: A bottom plate (15) is hinged on the base (1), and a limiting strip (16) is arranged on the bottom plate (15). The limiting strip (16) is used to abut against the baffle (11).

10. The blast relief panel guide hood according to claim 9, characterized in that: The limiting strip (16) is hook-shaped, and a card slot (32) for cooperating with the limiting strip (16) is provided on the baffle (11).

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