A boiler explosion door arrangement

Abstract

This utility model relates to the field of explosion-proof door technology, specifically a boiler explosion-proof door device, including a mounting frame, a support, and a base plate. A door frame is fixedly connected to the top of the mounting frame, and a door panel is movably connected to the top of the door frame. The support is fixedly connected to the outer wall of the door frame and symmetrically installed near the door panel. A sealing plate is fixedly connected to the side of the door panel near the door frame, and the base plate is fixedly connected to the side of the sealing plate away from the door panel. A door handle is fixedly connected to the side of the door panel away from the door frame. This utility model, by incorporating a fastening tube pushed by a fastening spring in the boiler explosion-proof door device, ensures that the sealing ring always adheres to the door frame surface, guaranteeing the seal between the door panel and the door frame and improving explosion-proof performance. Simultaneously, rotating the drive gear moves the sliding gear and the latch, quickly releasing the limiting relationship between the base plate and the mounting frame, thus allowing the door panel to open smoothly around the pivot.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door technology, and in particular to a boiler explosion-proof door device. Background Technology

[0002] Explosion-proof doors are an important safety relief structure for pressure-bearing equipment. They are widely used in the safety protection systems of pressure vessels in chemical, metallurgical, and power industries. When the internal pressure of the equipment rises abnormally, the explosion-proof door can quickly release the pressure by automatically opening or breaking, preventing damage to the equipment shell or explosion accidents. In boiler systems, due to the high temperature and high pressure involved in their operation, explosion-proof doors, as one of the key safety components, can respond quickly under abnormal operating conditions to ensure the safe and stable operation of the boiler.

[0003] Existing explosion-proof door devices for boilers typically rely solely on the elasticity of the sealing ring itself or a simple compression structure to ensure the sealing ring adheres to the door frame surface. This makes it difficult to maintain the sealing ring in continuous contact with the door frame during use, thus compromising the sealing effect and failing to effectively improve the overall explosion-proof performance. Furthermore, existing explosion-proof doors often require multiple manual operations during opening and closing, resulting in a relatively complex structure and a lack of linked rapid limit and unlocking functions. This makes the opening and closing process cumbersome and time-consuming, hindering rapid protective responses in emergency situations.

[0004] Therefore, addressing the problems of existing boiler explosion-proof door devices, this invention incorporates a fastening tube driven by a fastening spring within the boiler explosion-proof door device. This ensures the sealing ring remains in contact with the door frame surface, guaranteeing the seal between the door panel and the door frame and improving overall explosion-proof performance. Simultaneously, by setting a meshing structure between a sliding rack and a drive gear, coupled with a linkage mechanism between the connecting shaft and the pin, the pin automatically disengages and the bottom plate's limit is released, allowing the door panel to open smoothly around the pivot. This solves the problems of poor sealing and complex opening operations inherent in traditional explosion-proof doors. Utility Model Content

[0005] In order to overcome the problems that existing boiler explosion-proof doors mostly rely on the elasticity of sealing rings or simple compression structures, which make it difficult to maintain a continuous seal and affect explosion-proof performance, and that the opening and closing operations are complicated, lacking rapid linkage limit and unlocking functions, and taking a long time to open and close, it is difficult to meet the needs of emergency response.

[0006] The technical solution of this utility model is as follows: a boiler explosion-proof door device, including a mounting frame, a support, and a base plate; a door frame is fixedly connected to the top of the mounting frame, a door panel is movably connected to the top of the door frame, the support is fixedly connected to the outer wall of the door frame, the support is symmetrically installed near the door panel, a sealing plate is fixedly connected to the side of the door panel near the door frame, the base plate is fixedly connected to the side of the sealing plate away from the door panel, and a door handle is fixedly connected to the side of the door panel away from the door frame.

[0007] Preferably, the mounting frame and the door frame are an integrated structure, the door panel, the sealing plate and the bottom plate are an integrated structure, and the door handle is located away from the support.

[0008] Preferably, a mounting ring is fixedly connected to the outer wall of the mounting frame. The mounting ring is located near the bottom of the mounting frame. The mounting frame and the mounting ring are an integrated structure. The mounting ring has mounting holes inside. The mounting holes are evenly distributed inside the mounting ring and penetrate through the mounting ring.

[0009] Preferably, a rotating shaft is fixedly connected to the inner side of the support, and a connecting plate is rotatably connected to the outer side wall of the rotating shaft. The connecting plates are symmetrically installed near the support and are fixedly connected to the top of the door panel. The door panel is hinged to the support via the rotating shaft.

[0010] Preferably, a fastening tube is slidably connected inside the sealing plate. The fastening tube is installed at an equal angle near the outer wall of the sealing plate. A fastening spring is sleeved on the inner side of the fastening tube. One end of the fastening spring is fixedly connected to the inside of the sealing plate, and the other end of the fastening spring is fixedly connected to the inside of the fastening tube. A sealing ring is fixedly connected to the outer wall of the sealing plate. The fastening spring is in close contact with the inner wall of the sealing ring, and the sealing ring is in close contact with the inner wall of the door frame.

[0011] Preferably, a drive gear is rotatably connected inside the base plate, a connecting shaft is fixedly connected to the top of the drive gear, the connecting shaft is slidably connected inside the door panel and the base plate, a handle is fixedly connected to the end of the connecting shaft away from the drive gear, a sliding rack is engaged on the outer wall of the drive gear, a pin is fixedly connected to one end of the sliding rack, and a return spring is fixedly connected to the other end of the sliding rack.

[0012] Preferably, the pin is slidably connected inside the mounting frame and the base plate, and the return spring is symmetrically installed at the end of the sliding rack away from the pin, with the end of the return spring away from the sliding rack fixedly connected inside the base plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. When the device is ready for use, first, place the mounting frame and mounting ring at the designated connection position on the boiler, and fix the entire device to the boiler through the mounting holes. Then, push the door handle to drive the door panel to rotate around the pivot through the connecting plate, thereby closing the door panel to the top of the door frame. The return spring pushes the sliding rack, which drives the pin to insert into the mounting frame, limiting the bottom plate and the mounting frame, thereby keeping the door frame in the closed state, completing the initial installation of the device.

[0015] 2. During the use of the device, the fastening spring continuously applies force, pushing the fastening tube outward and applying uniform external force to the sealing ring in all directions, so that it always fits against the door frame surface, effectively filling the gap between the door panel and the door frame, ensuring its sealing performance, thereby improving the overall explosion-proof performance of the device.

[0016] 3. When it is necessary to open the device, pull the handle to drive the connecting shaft to slide, which in turn drives the drive gear to rotate and causes the sliding rack to slide away from the mounting frame. The pin moves synchronously with the sliding rack and disengages from the mounting frame, thereby releasing the limiting relationship between the base plate and the mounting frame. At this time, pull the door handle to make the door panel rotate in the opposite direction around the pivot through the connecting plate, opening the door frame and completing the opening operation of the device. Attached Figure Description

[0017] Figure 1 The diagram shown is a top view of the overall structure of this utility model;

[0018] Figure 2 The diagram shown is a bottom view of the overall structure of this utility model;

[0019] Figure 3 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.

[0020] Figure 4 The diagram shown is a schematic representation of the sealing plate structure of this utility model.

[0021] Figure 5 The diagram shown is a schematic representation of the base plate structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 101. Mounting ring; 102. Mounting hole; 2. Door frame; 3. Door panel; 4. Support; 401. Rotating shaft; 402. Connecting plate; 5. Sealing plate; 501. Fastening tube; 502. Fastening spring; 503. Sealing ring; 6. Base plate; 601. Drive gear; 602. Connecting shaft; 603. Handle; 604. Sliding rack; 605. Pin; 606. Return spring; 7. Door handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5This utility model provides a technical solution: a boiler explosion-proof door device, including a mounting frame 1, a support 4 and a base plate 6; a door frame 2 is fixedly connected to the top of the mounting frame 1, a door panel 3 is movably connected to the top of the door frame 2, the support 4 is fixedly connected to the outer side wall of the door frame 2, the support 4 is symmetrically installed near the door panel 3, a sealing plate 5 is fixedly connected to the side of the door panel 3 near the door frame 2, the base plate 6 is fixedly connected to the side of the sealing plate 5 away from the door panel 3, and a door handle 7 is fixedly connected to the side of the door panel 3 away from the door frame 2.

[0025] The mounting frame 1 and door frame 2 are integrated structures, as are the door panel 3, sealing plate 5, and base plate 6. The door handle 7 is located away from the support 4. The integrated structure enhances the overall strength and stability of the device and improves the reliability and explosion-proof efficiency of the sealing fit.

[0026] A mounting ring 101 is fixedly connected to the outer wall of the mounting frame 1. The mounting ring 101 is located near the bottom of the mounting frame 1. The mounting frame 1 and the mounting ring 101 are an integrated structure. The mounting ring 101 has mounting holes 102 inside. The mounting holes 102 are distributed at equal angles inside the mounting ring 101 and penetrate through the mounting ring 101. The integrated mounting frame 1 and mounting ring 101 improve the overall structural strength and stability of the device and effectively avoid loosening or poor sealing caused by the separate connection of parts.

[0027] A rotating shaft 401 is fixedly connected to the inner side of the support 4, and a connecting plate 402 is rotatably connected to the outer wall of the rotating shaft 401. The connecting plates 402 are symmetrically installed near the support 4 and are fixedly connected to the top of the door panel 3. The door panel 3 is hinged to the support 4 through the rotating shaft 401, which realizes the stable opening and closing of the door panel 3 around the rotating shaft 401 and ensures the smooth operation of the door panel 3 during the opening and closing process.

[0028] A fastening tube 501 is slidably connected inside the sealing plate 5. The fastening tube 501 is installed at an angle near the outer wall of the sealing plate 5. A fastening spring 502 is sleeved on the inner side of the fastening tube 501. One end of the fastening spring 502 is fixedly connected to the inside of the sealing plate 5, and the other end of the fastening spring 502 is fixedly connected to the inside of the fastening tube 501. A sealing ring 503 is fixedly connected to the outer wall of the sealing plate 5. The fastening spring 502 is tightly attached to the inner wall of the sealing ring 503, and the sealing ring 503 is tightly attached to the inner wall of the door frame 2, which improves the sealing effect between the door panel 3 and the door frame 2 and effectively prevents gas or pressure leakage.

[0029] A drive gear 601 is rotatably connected inside the base plate 6. A connecting shaft 602 is fixedly connected to the top of the drive gear 601. The connecting shaft 602 is slidably connected inside the door panel 3 and the base plate 6. A handle 603 is fixedly connected to the end of the connecting shaft 602 away from the drive gear 601. A sliding rack 604 is meshed on the outer wall of the drive gear 601. A pin 605 is fixedly connected to one end of the sliding rack 604. A return spring 606 is fixedly connected to the other end of the sliding rack 604. The return spring 606 can automatically reset the sliding rack 604 and the pin 605 after the opening and closing operation is completed, restoring the limit state.

[0030] The pin 605 is slidably connected inside the mounting frame 1 and the base plate 6. The return spring 606 is symmetrically installed at the end of the sliding rack 604 away from the pin 605. The end of the return spring 606 away from the sliding rack 604 is fixedly connected inside the base plate 6. Under the drive of the sliding rack 604, the pin 605 can move in and out of the mounting frame 1 in preparation to achieve limit or unlock.

[0031] Working principle: According to Figures 1 to 5 As shown, when the device is ready for use, firstly, the mounting frame 1 and mounting ring 101 are placed at the designated connection position on the external boiler, and the entire device is fixed to the boiler using external tools through the mounting hole 102. Then, the door handle 7 is grasped and external force is applied to push the door panel 3, which rotates around the pivot 401 through the connecting plate 402, thereby closing the door panel 3 to the top of the door frame 2. Under the elastic force of the return spring 606, the sliding rack 604 is pushed, which drives the pin 605 to be inserted into the mounting frame 1, limiting the bottom plate 6 and the mounting frame 1, thereby keeping the door frame 2 in the closed state, and completing the initial installation of the device.

[0032] according to Figures 3 to 4 As shown, during the use of the device, firstly, under the elastic force of the fastening spring 502, continuous force is applied to push the fastening tube 501 outward and apply uniform external force to the sealing ring 503 in all directions, so that it always fits against the surface of the door frame 2, effectively filling the gap between the door panel 3 and the door frame 2, ensuring its sealing performance, thereby improving the overall explosion-proof performance of the device.

[0033] according to Figures 3 to 5As shown, when the device needs to be opened, first, grasp and apply external force to pull the handle 603, causing the connecting shaft 602 to slide inside the door panel 3, sealing plate 5, and bottom plate 6. The movement of the connecting shaft 602 drives the drive gear 601 to rotate, which in turn drives the sliding rack 604 meshing with it to slide away from the mounting frame 1, overcoming the elastic force of the return spring 606. The pin 605 moves synchronously with the sliding rack 604 and disengages from the mounting frame 1, thereby releasing the limiting relationship between the bottom plate 6 and the mounting frame 1. At this time, grasp and apply external force to pull the door handle 7, causing the door panel 3 to rotate in the opposite direction around the rotating shaft 401 through the connecting plate 402, opening the door frame 2 and completing the opening operation of the device.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler explosion door device comprising a mounting frame (1), a support (4) and a bottom plate (6); characterized in that: The top of the mounting frame (1) is fixedly connected to a door frame (2), and the top of the door frame (2) is movably connected to a door panel (3). The support (4) is fixedly connected to the outer wall of the door frame (2). The support (4) is symmetrically installed near the door panel (3). A sealing plate (5) is fixedly connected to the side of the door panel (3) near the door frame (2). The bottom plate (6) is fixedly connected to the side of the sealing plate (5) away from the door panel (3). A door handle (7) is fixedly connected to the side of the door panel (3) away from the door frame (2).

2. A boiler explosion door apparatus as defined in claim 1, wherein: The mounting frame (1) and the door frame (2) are an integrated structure, the door panel (3), the sealing plate (5) and the bottom plate (6) are an integrated structure, and the door handle (7) is located away from the support (4).

3. A boiler explosion door assembly according to claim 1 wherein: A mounting ring (101) is fixedly connected to the outer wall of the mounting frame (1). The mounting ring (101) is located near the bottom of the mounting frame (1). The mounting frame (1) and the mounting ring (101) are an integrated structure. The mounting ring (101) has mounting holes (102) inside. The mounting holes (102) are evenly distributed inside the mounting ring (101) and penetrate the mounting ring (101).

4. A boiler explosion door assembly according to claim 1 wherein: A rotating shaft (401) is fixedly connected to the inner side of the support (4), and a connecting plate (402) is rotatably connected to the outer side wall of the rotating shaft (401). The connecting plate (402) is symmetrically installed near the support (4), and the connecting plate (402) is fixedly connected to the top of the door panel (3). The door panel (3) is hinged to the support (4) through the rotating shaft (401).

5. A boiler explosion door assembly according to claim 1 wherein: A fastening tube (501) is slidably connected inside the sealing plate (5). The fastening tube (501) is installed at an angle close to the outer wall of the sealing plate (5). A fastening spring (502) is sleeved on the inner side of the fastening tube (501). One end of the fastening spring (502) is fixedly connected to the inside of the sealing plate (5), and the other end of the fastening spring (502) is fixedly connected to the inside of the fastening tube (501). A sealing ring (503) is fixedly connected to the outer wall of the sealing plate (5). The fastening spring (502) is in close contact with the inner wall of the sealing ring (503), and the sealing ring (503) is in close contact with the inner wall of the door frame (2).

6. A boiler explosion door assembly according to claim 1 wherein: A drive gear (601) is rotatably connected inside the base plate (6). A connecting shaft (602) is fixedly connected to the top of the drive gear (601). The connecting shaft (602) is slidably connected inside the door panel (3) and the base plate (6). A handle (603) is fixedly connected to one end of the connecting shaft (602) away from the drive gear (601). A sliding rack (604) meshes on the outer wall of the drive gear (601). A pin (605) is fixedly connected to one end of the sliding rack (604), and a return spring (606) is fixedly connected to the other end of the sliding rack (604).

7. A boiler explosion door assembly according to claim 6 wherein: The pin (605) is slidably connected inside the mounting frame (1) and the base plate (6). The return spring (606) is symmetrically installed at the end of the sliding rack (604) away from the pin (605). The end of the return spring (606) away from the sliding rack (604) is fixedly connected inside the base plate (6).

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