Explosion door maintenance method and tool

Abstract

The invention provides an explosion-proof door maintenance method and tool, and the method comprises the steps: S1, arranging guide rails at the tops of the two sides of an explosion-proof door, and enabling the extension direction of the guide rails to be perpendicular to the center line of the explosion-proof door; s2, a new anti-explosion piece is placed below the annular pressing piece, then the two sides of the pressing piece are placed in the guide rail, the pressing piece and the anti-explosion piece slide to the position over the anti-explosion door in the extending direction of the guide rail, and the guide rail is used for resisting the impact force of airflow; and S3, the screw holes in the pressing pieces are aligned with the screw holes in the explosion-proof door, and then the pressing pieces are connected to the explosion-proof door through bolts. According to the anti-explosion door, the pressing piece is moved to the position over the anti-explosion door from one end of the guide rail, after airflow blown out of the anti-explosion door impacts on the anti-explosion piece, impact force is counteracted by the guide rail, the pressing piece can be easily aligned with the mounting face of the anti-explosion door, a large amount of time of workers can be saved, and then the working risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance of explosion-proof doors for tanks, and specifically relates to a method and a tooling for maintaining explosion-proof doors. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In the fields of waste gas treatment and chemical production, tanks are common equipment. An explosion-proof door (also called a pressure relief door or a pressure relief opening) is provided at the top of such tanks. When the pressure inside the tank is too high, the explosion-proof film on the explosion-proof door will be broken through (a metal film mainly made of tin, and the explosion-proof film is pressed on the explosion-proof door by a ring-shaped pressing piece to block the explosion-proof door) to relieve the pressure. However, due to the long-term erosion of the explosion-proof film by gas, it will gradually become thinner and finally be broken through under the normal pressure inside the tank.

[0004] Currently, when maintaining such explosion-proof doors, the production line needs to be shut down, or workers need to wear protective clothing for maintenance (the gas in the tank is usually sulfur-containing toxic gas). The method of shutting down the production line causes too much loss; the method of wearing protective clothing for maintenance is cumbersome after wearing the protective clothing, and there is continuous gas leakage (1-2 kPa) at the explosion-proof door. It takes a long time for the staff to operate (the oxygen mask on the protective clothing can only support the staff to work for half an hour), and it requires multiple people to cooperate. The disadvantages of long time consumption and multiple people cooperation are high safety risks.

[0005] Therefore, how to quickly maintain the explosion-proof door has become an urgent problem to be solved at present. Summary of the Invention

[0006] The main purpose of the present invention is to provide a method and a tooling for maintaining an explosion-proof door that can quickly maintain the explosion-proof door.

[0007] To achieve the above object, the technical solution of the present invention is realized as follows: An explosion-proof door maintenance method includes:

[0008] S1. Set guide rails at the tops on both sides of the explosion-proof door, and the extending direction of the guide rails is perpendicular to the center line of the explosion-proof door;

[0009] S2. Place a new explosion-proof film under the ring-shaped pressing piece, then place both sides of the pressing piece into the guide rails, and slide the pressing piece and the explosion-proof film along the extending direction of the guide rails to directly above the explosion-proof door, and use the guide rails to resist the impact force of the airflow;

[0010] S3. Align the screw holes on the pressing piece with the screw holes on the explosion-proof door, and then connect the pressing piece to the explosion-proof door with bolts.

[0011] Further, at least one baffle is provided on the annular pressing plate, and the baffle is used to prevent the explosion-proof sheet from bulging upward from the middle of the pressing plate.

[0012] Further, in step S3, after the screw holes on the pressing plate are aligned with the screw holes on the explosion-proof door, first use bolts to pre-connect the pressing plate and the explosion-proof door, then remove the guide rail, and then completely fix the pressing plate on the explosion-proof door through bolts to complete the maintenance of the explosion-proof door.

[0013] The present invention also discloses an explosion-proof door maintenance tooling, which is used in conjunction with the above explosion-proof door maintenance method. It includes the guide rails located on both sides of the explosion-proof door, and also includes a limiting component. The limiting component is used to control the mutual approach and separation of the guide rails on both sides, and is clamped on both sides of the explosion-proof door by the mutual approach of the guide rails on both sides to realize the limit of the relative position between the guide rail and the explosion-proof door.

[0014] Further, the longitudinal section of the guide rail is C-shaped. When clamped on both sides of the explosion-proof door, the C-shaped opening of the guide rail faces the explosion-proof door, and the bottom of the C-shaped opening is located on one side of the explosion-proof door and is lower than the top surface of the explosion-proof door. The top of the C-shaped opening is higher than the top surface of the explosion-proof door and there is a gap for the pressing plate and the explosion-proof sheet to pass through between them.

[0015] Further, the limiting component includes a plurality of adjusting components distributed along the length direction of the guide rail. The adjusting components are distributed at both ends and in the middle of the guide rail, and the adjusting components located at both ends of the guide rail are located at the lower part of the guide rail, and the adjusting components located in the middle of the guide rail are located at the upper part.

[0016] Further, the adjusting component includes a rotating part, screw rods respectively located at both ends of the rotating part, and fixing blocks arranged at the ends of the screw rods far away from the rotating part. The screw rods are rotationally matched with the rotating part, the screw rods cannot rotate relative to the fixing blocks, and the fixing blocks are used for fixedly connecting with the corresponding guide rails.

[0017] Further, a sliding cavity is arranged inside the fixing block, a slider is arranged in the sliding cavity, the slider can only slide along the axis direction of the screw rod in the sliding cavity, and an elastic member is arranged between the slider and the sliding cavity. The elastic member is used to push the slider to move in a direction away from the rotating part;

[0018] One end of the screw rod extends into the sliding cavity and is fixedly connected with the slider.

[0019] The beneficial effects of the present invention are reflected in:

[0020] In the present invention, the tablet is moved from one end of the guide rail to directly above the explosion-proof door. After the airflow blown out from the explosion-proof door impacts the explosion-proof sheet, the impact force is offset by the guide rail, and the tablet can be more easily aligned with the mounting surface of the explosion-proof door, saving a large amount of time for the staff and thus reducing the work risk. Description of the Drawings

[0021] In the drawings:

[0022] Figure 1 is the working state diagram of the maintenance tooling described in the present invention;

[0023] Figure 2 is the internal structure diagram of the fixing block described in the present invention.

[0024] Description of the reference numerals in the drawings:

[0025] 1. Guide rail;

[0026] 2. Tablet; 21. Baffle;

[0027] 3. Explosion-proof sheet;

[0028] 4. Adjusting assembly; 41. Rotating part; 42. Screw; 43. Fixing block; 431. Sliding cavity; 432. Slide block; 433. Elastic member. Detailed Description of the Invention

[0029] The following will further describe the present invention in detail with reference to the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all of the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the invention without creative efforts shall fall within the scope of protection of the invention.

[0030] See Figures 1 to 2 .

[0031] The present invention discloses an explosion-proof door maintenance method, including:

[0032] S1. Guide rails 1 are arranged at the tops on both sides of the explosion-proof door, and the extending direction of the guide rails 1 is perpendicular to the center line of the explosion-proof door;

[0033] S2. A new explosion-proof sheet 3 is placed below the annular tablet 2, and then both sides of the tablet 2 are placed into the guide rails 1, and the tablet 2 and the explosion-proof sheet 3 are slid along the extending direction of the guide rails 1 to directly above the explosion-proof door, and the guide rails 1 are used to resist the impact force of the airflow;

[0034] S3. Align the screw holes on the tablet 2 with the screw holes on the explosion-proof door, and then connect the tablet 2 to the explosion-proof door using bolts.

[0035] In specific implementation, the cross-section of the guide rail 1 is C-shaped, which enables the mounting surface of the explosion-proof door to be located in the middle of the C shape. During maintenance, the staff places the new explosion-proof sheet 3 under the pressing piece 2, and then moves the pressing piece 2 from one end of the guide rail 1 to directly above the explosion-proof door. At this time, after the air flow blown out from the explosion-proof door impacts the explosion-proof sheet 3, the impact force is offset by the guide rail 1, and the pressing piece 2 can be more easily aligned with the mounting surface of the explosion-proof door; then the staff uses bolts to connect the pressing piece 2 to the explosion-proof door to complete the maintenance of the explosion-proof door.

[0036] The present invention can make the pressing piece 2 more easily aligned with the mounting surface of the explosion-proof door, which can save a lot of time for the staff and thus reduce the work risk.

[0037] In one embodiment, at least one baffle 21 is provided on the annular pressing piece 2, and the baffle 21 is used to prevent the explosion-proof sheet 3 from bulging upward from the middle of the pressing piece 2.

[0038] In specific implementation, since the air flow blown out from the explosion-proof door continuously impacts the explosion-proof sheet 3, the explosion-proof sheet 3 has a certain flexibility and will bulge upward from the middle of the pressing piece 2, which is not conducive to making the pressing piece 2 flat. However, through the setting of the baffle 21, this can be well overcome to prevent the explosion-proof sheet 3 from bulging upward from the middle of the pressing piece 2.

[0039] In one embodiment, in step S3, after the screw holes on the pressing piece 2 are aligned with the screw holes on the explosion-proof door, the pressing piece 2 is pre-connected to the explosion-proof door with bolts first, and then the guide rail 1 is removed. Subsequently, the pressing piece 2 is completely fixed to the explosion-proof door with bolts to complete the maintenance of the explosion-proof door.

[0040] In specific implementation, several bolts are used to pre-connect the pressing piece 2 to the explosion-proof door first. At this time, there is a gap between the pressing piece 2 and the explosion-proof door, but the screw holes on the pressing piece 2 and the screw holes on the explosion-proof door are always aligned under the limitation of the bolts. Then the guide rail 1 is removed to facilitate multi-person joint operation, and then the pressing piece 2 is completely fixed to the explosion-proof door with bolts, and the working efficiency is high.

[0041] The present invention also discloses an explosion-proof door maintenance tooling, which is used in cooperation with the above explosion-proof door maintenance method. It includes the above guide rails 1 located on both sides of the explosion-proof door, and also includes a limiting component. The limiting component is used to control the mutual approach and separation of the guide rails 1 on both sides, and is clamped on both sides of the explosion-proof door by the mutual approach of the guide rails 1 on both sides to realize the position limitation of the guide rail 1 relative to the explosion-proof door.

[0042] In one embodiment, the longitudinal section of the guide rail 1 is C-shaped. When clamped on both sides of the explosion-proof door, the C-shaped opening of the guide rail 1 faces the explosion-proof door, the bottom of the C-shaped opening is located on one side of the explosion-proof door, and its height is lower than the top surface of the explosion-proof door. The top of the C-shaped opening is higher than the top surface of the explosion-proof door, and there is a gap for the pressing piece 2 and the explosion-proof piece 3 to pass through between the top of the C-shaped opening and the top surface of the explosion-proof door.

[0043] In specific implementation, the top surface of the explosion-proof door is a flange. The bottom of the C-shaped opening is stuck under the flange, and the top of the C-shaped opening is higher than the top surface of the flange. In this way, on the one hand, there is no need to worry that the guide rail 1 will be disengaged from the explosion-proof door upward under the influence of impact force. On the other hand, it can also clamp the upward-moving pressing piece 2 to prevent the pressing piece 2 from moving upward under the impact of air flow, and the structure is relatively simple at the same time.

[0044] In one embodiment, the limiting component includes a plurality of adjusting components 4 distributed along the length direction of the guide rail 1. The adjusting components 4 are distributed at both ends and in the middle of the guide rail 1, and the adjusting components 4 located at both ends of the guide rail 1 are located at the lower part of the guide rail 1, and the adjusting components 4 located in the middle of the guide rail 1 are located at the upper part. With such a design, through the triangular distribution method, the stability of the guide rail 1 clamped on both sides of the explosion-proof door is better, and the overall stability of the tooling is also better.

[0045] In one embodiment, the adjusting component 4 includes a rotating part 41, screw rods 42 respectively located at both ends of the rotating part 41, and a fixing block 43 arranged at the end of the screw rod 42 far from the rotating part 41. The screw rod 42 is rotationally matched with the rotating part 41, the screw rod 42 cannot rotate relative to the fixing block 43, and the fixing block 43 is used for fixedly connecting with the corresponding guide rail 1.

[0046] In specific implementation, by rotating the rotating part 41, the distance between the two screw rods 42 can be changed, and thus the distance between the two guide rails 1 can be adjusted.

[0047] In one embodiment, a sliding cavity 431 is arranged inside the fixing block 43, a sliding block 432 is arranged in the sliding cavity 431, the sliding block 432 can only slide along the axis direction of the screw rod 42 in the sliding cavity 431, an elastic member 433 is arranged between the sliding block 432 and the sliding cavity 431, and the elastic member 433 is used to push the sliding block 432 to move in a direction away from the rotating part 41;

[0048] One end of the screw rod 42 extends into the sliding cavity 431 and is fixedly connected with the sliding block 432.

[0049] In specific implementation, since the slider 432 cannot rotate relative to the fixed block 43, when the rotating part 41 rotates, driven by the screw 42, the slider 432 will squeeze the elastic part 433 to move in the direction of the rotating part 41, driving the guide rail 1 to move. The elastic part 433 can play a role of pre-tightening force here, making the guide rail 1 always stick to both sides of the explosion-proof door. At the same time, if there is no sliding cavity 431 and sliding block, if only one rotating part 41 is rotated, it is relatively difficult to rotate the rotating part 41 (the distance between the guide rails 1 is limited by the other adjusting components 4), and multiple rotating parts 41 need to be rotated simultaneously. However, with the settings of the sliding cavity 431, sliding block and elastic part 433, the rotating part 41 can still be rotated and pressure can be applied to the guide rail 1 without changing the distance between the guide rails 1. In this way, it is not necessary for multiple people to rotate multiple rotating parts 41 simultaneously, and one person can also operate, improving the convenience of operation.

[0050] Preferably, the elastic part 433 is a spring.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0052] It should be noted that if there are directional indications (such as up and down) involved in the embodiments of the invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0053] In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, "multiple" means more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the invention.

Claims

1. A method for maintaining an explosion-proof door, characterized in that: include: S1. A guide rail (1) is arranged at the top of both sides of the explosion-proof door, and the extension direction of the guide rail (1) is perpendicular to the center line of the explosion-proof door; S2, placing a new explosion-proof disc (3) below the annular pressing disc (2), then placing both sides of the pressing disc (2) into the guide rail (1), and sliding the pressing disc (2) and the explosion-proof disc (3) along the extension direction of the guide rail (1) to just above the explosion-proof door, using the guide rail (1) to resist the impact force of the airflow; S3. Align the screw holes on the pressing plate (2) with the screw holes on the explosion-proof door, and then use bolts to connect the pressing plate (2) to the explosion-proof door.

2. The explosion-proof door maintenance method according to claim 1, characterized in that: At least one baffle (21) is provided on the annular pressing plate (2), and the baffle (21) is used to prevent the explosion-proof plate (3) from bulging upward from the middle of the pressing plate (2).

3. The explosion-proof door maintenance method according to claim 1, characterized in that: In step S3, after the screw holes on the pressing plate (2) are aligned with the screw holes on the explosion-proof door, the pressing plate (2) is pre-connected with the explosion-proof door using bolts, and then the guide rail (1) is removed, and then the pressing plate (2) is completely fixed to the explosion-proof door by bolts, thereby completing the maintenance of the explosion-proof door.

4. An explosion-proof door maintenance tool, characterized in that: The method for maintaining an explosion-proof door according to any one of claims 1 to 3 comprises the guide rails (1) located on both sides of the explosion-proof door, and also comprises a limiting component, wherein the limiting component is used to control the guide rails (1) on both sides to approach and move away from each other, and the guide rails (1) on both sides are clamped on both sides of the explosion-proof door by approaching each other, thereby achieving the limitation of the relative position of the guide rails (1) and the explosion-proof door.

5. The explosion-proof door maintenance tool according to claim 4, characterized in that: The longitudinal section of the guide rail (1) is C-shaped. When clamped on both sides of the explosion-proof door, the C-shaped opening of the guide rail (1) faces the explosion-proof door, and the bottom of the C-shaped opening is located on one side of the explosion-proof door and is lower than the top surface of the explosion-proof door. The top of the C-shaped opening is higher than the top surface of the explosion-proof door and a gap is left between the top surface of the explosion-proof door for the pressure plate (2) and the explosion-proof plate (3) to pass through.

6. The explosion-proof door maintenance tool according to claim 4, characterized in that: The limiting component comprises a plurality of adjustment components (4) distributed along the length direction of the guide rail (1), wherein the adjustment components (4) are distributed at both ends and the middle of the guide rail (1), and the adjustment components (4) located at both ends of the guide rail (1) are located at the lower part of the guide rail (1), and the adjustment components (4) located in the middle of the guide rail (1) are located at the upper part.

7. The explosion-proof door maintenance tool according to claim 6, characterized in that: The adjusting assembly (4) comprises a rotating part (41), screw rods (42) respectively located at two ends of the rotating part (41), and a fixed block (43) arranged at one end of the screw rod (42) away from the rotating part (41); the screw rod (42) is rotationally matched with the rotating part (41); the screw rod (42) cannot rotate relative to the fixed block (43); and the fixed block (43) is used to be fixedly connected to the corresponding guide rail (1).

8. The explosion-proof door maintenance tool according to claim 7, characterized in that: A sliding cavity (431) is provided inside the fixed block (43), a sliding block (432) is provided inside the sliding cavity (431), the sliding block (432) can slide in the sliding cavity (431) only along the axial direction of the screw rod (42), an elastic member (433) is provided between the sliding block (432) and the sliding cavity (431), the elastic member (433) is used to push the sliding block (432) to move in a direction away from the rotating part (41); One end of the screw rod (42) extends into the sliding cavity (431) and is fixedly connected to the sliding block (432).

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