Explosion venting device with airflow guiding function

Abstract

The utility model relates to an explosion venting device with an airflow guiding function, and relates to the field of explosion venting plates. The explosion venting device comprises a mounting frame hinged to a target device, a cover plate is hinged to the mounting frame, an explosion venting piece is arranged at the end, away from the hinge axis, of the cover plate, the explosion venting piece is partially and fixedly connected between the target device and the cover plate, and a tearing seam in the explosion venting piece is located between the target device and the cover plate; baffles are arranged on the two sides, close to the hinge axis, of the cover plate and used for shielding transversely-jetted high-pressure airflow in the open state of the cover plate, and the baffles can limit the opening angle of the cover plate. According to the high-pressure airflow guiding device, the high-pressure airflow guiding effect can be achieved, and the problem that high-pressure airflow hurts passing workers or other equipment is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of explosion venting plate, in particular to an explosion venting device with airflow guiding function. BACKGROUND

[0002] In many industrial occasions, such as chemical industry, petrochemical industry, dust treatment and the like, the internal pressure of equipment or container may rise sharply due to improper operation, chemical reaction or external factors, and there is a risk of explosion. In order to protect the safety of personnel and property, it is usually necessary to install an explosion venting device to release pressure in time in case of overpressure, so as to prevent the equipment or container shell from being broken due to internal pressure exceeding the bearing range.

[0003] Although the traditional explosion venting device can effectively release pressure, it is often accompanied by high-temperature and high-pressure airflow impact in the explosion venting process, which not only may damage the surrounding equipment, but also may cause harm to personnel. CONTENT OF THE UTILITY MODEL

[0004] In order to realize the effect of guiding high-pressure airflow and reduce the possibility of causing harm to passing personnel or other equipment by high-pressure airflow, the present application provides an explosion venting device with airflow guiding function.

[0005] The explosion venting device with airflow guiding function provided by the present application adopts the following technical solution:

[0006] An explosion venting device with airflow guiding function comprises a mounting frame hinged to a target device, a cover plate hinged to the mounting frame, and an explosion venting sheet provided at one end of the cover plate away from the hinge axis, wherein the explosion venting sheet is partially fixedly connected between the target device and the cover plate, and a tear seam on the explosion venting sheet is located between the target device and the cover plate.

[0007] Both sides of the cover plate close to the hinge axis are provided with baffles, which are used to shield the high-pressure airflow transversely sprayed in the open state of the cover plate, and the baffles can limit the opening angle of the cover plate.

[0008] By adopting the above technical solution, the mounting frame is fixed to the target device, the cover plate is hinged to the mounting frame, and the cover plate is fixedly connected to the mounting frame through the explosion venting sheet. In the unfolded state of the cover plate, the baffles are used to limit the opening angle of the cover plate and also to shield the transverse high-pressure airflow at the side edge of the cover plate. Under the guiding action of the baffles and the cover plate, the high-pressure airflow is guided. When the explosion venting device realizes the function of releasing pressure of the target device, it can also guide the high-pressure airflow and reduce the possibility of causing harm to passing personnel or other equipment by high-pressure airflow.

[0009] Optionally, a convex rib is provided outside the opening of the mounting frame, and a sealing gasket is fixedly connected to the convex rib and used to abut against the cover plate in the closed state.

[0010] By adopting the technical scheme, the design of the convex rib and the sealing gasket significantly improves the sealing performance of the device in the non-explosion leakage state, effectively prevents gas leakage, and has the effects of rain and water prevention, thereby enhancing the safety and reliability of the device.

[0011] Optionally, a folded edge is arranged at the outer edge of the cover plate, and the folded edge covers the convex rib.

[0012] By adopting the technical scheme, the design of the folded edge further enhances the sealing performance of the device, and by covering the convex rib, the risk of water seepage caused by the gap between the cover plate and the mounting frame is reduced.

[0013] Optionally, a groove is arranged at the outer side of the convex rib, and the folded edge is embedded in the groove.

[0014] By adopting the technical scheme, the cooperation of the groove and the folded edge not only further improves the sealing performance of the device, but also increases the stability and durability of the structure, thereby ensuring the reliability of the device in long-term use.

[0015] Optionally, the lower end of the cover plate is hingedly connected to the lower end of the mounting frame, a cover is arranged above the mounting frame, and the cover is located above the explosion leakage piece.

[0016] By adopting the technical scheme, the design of the cover plays a role in shielding and guiding rainwater during the explosion leakage process, thereby reducing the water seepage at the top of the cover plate.

[0017] Optionally, the cover plate comprises a plurality of mutually hingedly connected turnover plates, the turnover plate close to the cover plate is hingedly connected to the cover plate, and the turnover plate away from the cover plate is hingedly connected to the mounting frame.

[0018] By adopting the technical scheme, the plurality of mutually hingedly connected turnover plates form the cover plate, and when the cover plate is closed, the turnover plates are folded with each other, thereby reducing the area occupied by the turnover plates after the cover plate is closed.

[0019] Optionally, an auxiliary plate is arranged between adjacent turnover plates, and the auxiliary plate is used to shield the gap between adjacent turnover plates in the unfolded state of the cover plate.

[0020] By adopting the technical scheme, the design of the auxiliary plate ensures that the cover plate can better shield the gap between adjacent turnover plates in the unfolded state, thereby alleviating the situation that the airflow escapes from the gap and hurts people.

[0021] Optionally, the cover plate is fixedly connected to the cover plate, and a limiting plate is arranged at one end of the cover plate away from the cover plate, and in the unfolded state of the cover plate, the limiting plate is supported on the mounting frame, so as to limit the unfolding angle of the cover plate.

[0022] By adopting the technical scheme, the design of the limiting plate limits the unfolding angle of the cover plate, realizes the fixed guidance of the high-pressure airflow, and ensures the safety of the explosion relief process.

[0023] In summary, the present application has at least one of the following beneficial technical effects: the high-pressure airflow is guided under the guidance of the baffle and the cover plate, the high-pressure airflow can be guided while the target device is depressurized, and the problem of damage to passing staff or other equipment caused by the high-pressure airflow is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application.

[0025] Figure 2 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the unfolded state of the cover plate.

[0026] Figure 3 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the semi-unfolded state of the cover plate.

[0027] Figure 4 is a sectional view of the baffle of embodiment 1 of the present application.

[0028] Figure 5 is Figure 4 an enlarged schematic diagram of part A.

[0029] Figure 6 is an exploded view of the sealing gasket and the protruding rib of embodiment 1 of the present application.

[0030] Figure 7 is Figure 4 an enlarged schematic diagram of part B.

[0031] Figure 8 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the cover plate and the folded edge.

[0032] Figure 9 is a schematic diagram of the overall structure of embodiment 2 of the present application.

[0033] Figure 10 is a schematic diagram of the structure of embodiment 2 of the present application for embodying the limiting plate.

[0034] BRIEF DESCRIPTION OF DRAWINGS: 1, mounting frame; 11, explosion vent; 13, cover plate; 14, baffle; 15, first flip plate; 16, second flip plate; 17, additional plate; 18, explosion relief sheet; 19, tear seam; 2, protruding rib; 21, sealing gasket; 22, folded edge; 23, groove; 24, baffle cover; 3, limiting plate. DETAILED DESCRIPTION

[0035] The following will be described in conjunction with the drawingsFigures 1-10 The application is further described in detail. Embodiment 1

[0036] The embodiment of the application discloses a gas flow guiding explosion venting device. Figure 1 And Figure 2 The gas flow guiding explosion venting device comprises a mounting frame 1 for being fixed on a target device, the mounting frame 1 is a rectangular frame and is fixedly connected to the outer wall of the target device in the vertical direction, and the target device is provided with an opening for pressure relief, and the mounting frame 1 is provided with an explosion venting opening 11 at a position corresponding to the opening.

[0037] A cover plate 13 is hingedly connected to the side, away from the target device, of the mounting frame 1, the cover plate 13 is rectangular and can cover the explosion venting opening 11 of the mounting frame 1, and the lower end of the cover plate 13 is hingedly connected to the lower end of the mounting frame 1 through a hinge or a hinge leaf. The opening and closing of the explosion venting opening 11 are realized by turning over the cover plate 13. The two side walls of the cover plate 13, close to the hinging axis, are both provided with a baffle 14, and the baffle 14 is used for blocking the transverse spraying of high-pressure gas and relieving the situation that personnel or equipment are injured by the transverse high-pressure gas. An explosion venting sheet 18 is arranged at the end, away from the hinging axis, of the cover plate 13, the explosion venting sheet 18 is fixedly connected between the cover plate 13 and the mounting frame 1, and the tear seam 19 on the explosion venting sheet 18 is also arranged between the cover plate 13 and the mounting frame 1.

[0038] As shown in Figure 2 And Figure 3 The baffle 14 comprises a plurality of mutually hinged turning plates, in the embodiment of the application, one baffle 14 comprises two mutually hinged turning plates, which are respectively denoted as a first turning plate 15 and a second turning plate 16, the first turning plate 15 is arranged close to the cover plate 13, the first turning plate 15 is hinged to the inner side of the cover plate 13, the second turning plate 16 is arranged away from the cover plate 13, and the second turning plate 16 is hinged to the inner side of the mounting frame 1. When the cover plate 13 is turned to an unfolded state, the first turning plate 15 and the second turning plate 16 are also turned to an unfolded state, so as to prevent the transverse spraying of high-pressure gas and limit the opening angle of the cover plate 13.

[0039] As shown in Figure 3 And Figure 4 The inner side of the second turning plate 16 is fixedly connected with an auxiliary plate 17, when the first turning plate 15 and the second turning plate 16 are unfolded to be parallel to each other, the auxiliary plate 17 on the second turning plate 16 abuts against the inner side of the first turning plate 15, and the auxiliary plate 17 shields the gap between the first turning plate 15 and the second turning plate 16, so as to improve the shielding effect of the baffle 14 on the high-pressure airflow.

[0040] As shown in Figure 5 And Figure 6The mounting frame 1 is provided with a row of convex edges 2 along the outer edge of the explosion vent 11, and the convex edges 2 are provided with sealing pads 21. In the closed state of the cover plate 13, the inner wall of the cover plate 13 abuts against the sealing pads 21 on the convex edges 2, thereby achieving the sealing effect.

[0041] As Figure 7 and Figure 8 The outer edge of the cover plate 13 is fixedly connected with a folded edge 22 on the side facing the mounting frame 1, the folded edge 22 covers the convex edges 2, the outer side of the convex edges 2 is provided with a groove 23, and part of the folded edge 22 is embedded in the groove 23, so as to improve the sealing stability between the cover plate 13 and the convex edges 2 in the closed state of the cover plate 13. The mounting frame 1 is fixedly connected with a cover 24 at the upper end, the cover 24 covers the upper part of the explosion vent 18 and the cover plate 13, and does not hinder the overturning of the baffle 14.

[0042] The principle of the embodiment is that, in the closed state of the cover plate 13, the upper end of the cover plate 13 is connected with the mounting frame 1 through the explosion vent 18, and the first overturning plate 15 and the second overturning plate 16 are folded with each other. When an explosion occurs in the inner wall of the target device, the high-pressure airflow pushes the cover plate 13 to turn outward, so that the explosion vent 18 on the cover plate 13 is broken along the tear seam 19, and the cover plate 13 is turned outward to the unfolded state of the first overturning plate 15 and the second overturning plate 16. At the same time, the cover plate 13 and the baffle 14 guide the high-pressure airflow, thereby reducing the possibility of injury to passing personnel or other equipment caused by the transverse spraying of the high-pressure airflow. Embodiment 2

[0043] As Figure 9 and Figure 10 The difference between the embodiment 2 and the embodiment 1 is that the baffle 14 is an integral panel fixedly connected to the inner side of the cover plate 13, the baffle 14 partially extends into the mounting frame 1, and the baffle 14 is fixedly connected with a limiting plate 3 in the mounting frame 1. When the cover plate 13 is turned to the unfolded state, the limiting plate 3 on the baffle 14 abuts against the inner side of the mounting frame 1, thereby limiting the turning angle of the cover plate 13.

[0044] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An explosion venting device with air flow guiding function, characterized in that: The utility model provides an explosion venting device, comprising a mounting frame (1) hinged to a target device, a cover plate (13) hinged to the mounting frame (1), a rupture disc (18) provided at an end of the cover plate (13) away from a hinge axis, the rupture disc (18) being partially fixedly connected between the target device and the cover plate (13), and a tear seam (19) on the rupture disc (18) being located between the target device and the cover plate (13). The cover plate (13) is provided with a baffle (14) on both sides close to the hinge axis, the baffle (14) being used to shield a high-pressure gas flow laterally sprayed in an open state of the cover plate (13), and the baffle (14) being capable of limiting an opening angle of the cover plate (13).

2. The explosion venting device with air flow guiding function according to claim 1, characterized in that: The mounting frame (1) is provided with a protruding rib (2) outside an opening, the protruding rib (2) being fixedly connected with a sealing gasket (21) used to abut against the cover plate (13) in a closed state.

3. The explosion venting device with air flow guiding function according to claim 2, characterized in that: The cover plate (13) is provided with a folded edge (22) at an outer edge thereof, the folded edge (22) being wrapped outside the protruding rib (2).

4. The explosion venting device with air flow guiding function according to claim 3, characterized in that: The protruding rib (2) is provided with a groove (23) at an outer side thereof, and the folded edge (22) is partially embedded in the groove (23).

5. The explosion venting device with air flow guiding function according to claim 1, characterized in that: The cover plate (13) is hinged to a lower end of the mounting frame (1), and the mounting frame (1) is provided with a cover (24) above the mounting frame (1), the cover (24) being located above the rupture disc (18).

6. The explosion venting device with air flow guiding function according to claim 1, characterized in that: The baffle (14) comprises a plurality of mutually hinged turnover plates, the turnover plates close to the cover plate (13) being hinged to the cover plate (13), and the turnover plates away from the cover plate (13) being hinged to the mounting frame (1).

7. The explosion venting device with air flow guiding function according to claim 6, characterized in that: Adjacent turnover plates are provided with an auxiliary plate (17) used to shield a gap between adjacent turnover plates in an unfolded state of the baffle (14).

8. The explosion venting device with air flow guiding function according to claim 1, characterized in that: The baffle (14) is fixedly connected to the cover plate (13), and an end of the baffle (14) away from the cover plate (13) is provided with a limiting plate (3), the cover plate (13) in the unfolded state being capable of driving the limiting plate (3) to be supported on the mounting frame (1) to limit an unfolding angle of the cover plate (13).

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