Explosion-proof pressure-resistant fireproof valve

Abstract

The utility model relates to the technical field of fireproof valves, and discloses an anti-explosion pressure-resistant fireproof valve which comprises a valve body, ventilation pipelines are connected to the two ends of the valve body in a sliding mode, a plurality of opening and closing doors are rotatably connected to the interior of the valve body, a controller is fixedly connected to the top of the valve body, a reset valve is arranged at the top of the controller, and the reset valve is connected with the valve body. A controller is arranged at the top of the valve body, an opening and closing door is arranged at the bottom of the controller, a triggering mechanism is arranged at the bottom of the controller and used for closing the opening and closing door by fusing the triggering mechanism when a fire occurs in the ventilation pipeline, and a connecting mechanism is arranged at the top of the valve body and used for rapidly connecting the valve body and the ventilation pipeline. According to the utility model, the sliding rod is pushed inwards through the push handle, so that the sliding block moves inwards to compress the reset spring, the effect of quickly installing the trigger line through the clamping mechanism is realized, the restarting speed of the device after the fire behavior is finished is improved, and the use efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire damper technology, and in particular to an explosion-proof and pressure-resistant fire damper. Background Technology

[0002] Explosion-proof, pressure-resistant, and fire-resistant valves are safety devices used to prevent accidents in pipeline systems under fire, explosion, or high-pressure environments. They are commonly used in hazardous environments such as industrial facilities, chemical plants, petrochemical plants, gas stations, and coal mines. These valves are designed with materials and structures selected based on the pipeline's pressure rating, temperature range, and fire protection requirements to ensure safe operation even under extreme conditions.

[0003] Fire dampers typically employ a trigger-activated mechanism to control their opening and closing. When a fire occurs within the piping system, the flames trigger the damper's closing mechanism via a sensor or thermal detection device. As the temperature rises, the trigger device melts or activates at a certain temperature, causing the valve to close automatically. This process can quickly cut off the spread of the fire source in its early stages, effectively preventing the fire from spreading to other areas, thereby reducing fire damage and protecting the safety of the entire piping system.

[0004] While traditional fire damper systems can respond quickly in the event of a fire, they also have certain limitations. Because the triggering device is activated by a fuse or mechanical action, it is often damaged once the fire is extinguished, requiring immediate replacement to restore normal system function. Therefore, repairing and replacing the triggering device becomes essential after a fire, which not only increases maintenance costs but may also lead to equipment downtime, affecting the continuity of production or operations. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an explosion-proof, pressure-resistant fireproof valve, which aims to improve the problem that the maintenance and replacement of trigger devices in the prior art are time-consuming, resulting in reduced device efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an explosion-proof, pressure-resistant fireproof valve, comprising a valve body, both ends of which are slidably connected to ventilation ducts, a plurality of opening and closing doors are rotatably connected inside the valve body, a controller is fixedly connected to the top of the valve body, a reset valve is provided on the top of the controller, and a triggering mechanism is provided at the bottom of the controller. The triggering mechanism is used to close the opening and closing doors by means of a fusible triggering mechanism when a fire occurs inside the ventilation duct, and a connecting mechanism is provided on the top of the valve body for quickly connecting the valve body and the ventilation duct.

[0007] The triggering mechanism includes a sensor, the top of which is fixedly connected to the bottom of the controller, a connecting rod slidably connected to the bottom of the sensor, a trigger wire fixedly connected to the bottom of the connecting rod, a slot on the outside of the connecting rod, the sensor being connected to the door opening and closing via a fuse triggering mechanism, and a locking mechanism inside the sensor for quickly replacing the trigger wire.

[0008] As a further description of the above technical solution:

[0009] The engaging mechanism includes a slide rod slidably connected inside the sensor. A slider is fixedly connected to the side of the slide rod closest to the sensor, and a return spring is fixedly connected to the side of the slider away from the slide rod. Connecting rods are rotatably connected to both sides of the slider. U-shaped brackets are rotatably connected to the sides of the two connecting rods away from the slider. Locking rods are fixedly connected to the sides of the two U-shaped brackets away from the connecting rods. Clamps are fixedly connected to the opposite sides of the two locking rods, and both clamps engage with the locking groove.

[0010] As a further description of the above technical solution:

[0011] The slider is slidably connected inside the sensor, and both connecting rods are slidably connected inside the sensor.

[0012] As a further description of the above technical solution:

[0013] The end of the reset spring away from the slider is fixedly connected inside the sensor.

[0014] As a further description of the above technical solution:

[0015] A push handle is fixedly connected to the side of the slide bar away from the slider.

[0016] As a further description of the above technical solution:

[0017] The connecting mechanism includes four mounting shells, the bottom of which is fixedly connected to the top of the valve body. A compression spring is fixedly connected inside the mounting shell. A limit block is fixedly connected to the side of the compression spring near the ventilation duct. A pin is fixedly connected inside the limit block. The pin passes through the valve body and engages with the outside of the ventilation duct.

[0018] As a further description of the above technical solution:

[0019] A fixing box is fixedly connected to the top of the mounting shell, a sliding plate is slidably connected inside the fixing box, a baffle plate is fixedly connected to the bottom of the sliding plate, and the bottom of the baffle plate abuts against the top of the limiting block.

[0020] As a further description of the above technical solution:

[0021] The limiting block is slidably connected inside the mounting housing, and a handle is fixedly connected to the side of the pin away from the limiting block.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, after the fire is extinguished, the trigger line needs to be reconnected. By pushing the slider inward with the push handle, the slider moves inward and compresses the reset spring. When the slider moves, the connecting rods on both sides drive the U-shaped frame, causing the two locking rods to drive the two clamps to separate relative to each other. At this time, the trigger line along with the connecting rod can be slid into the bottom of the sensor. Releasing the push handle, the reset spring's rebound force pushes the slider outward, and the two locking rods drive the two clamps to engage with the slot to fix it, thus completing the installation. This achieves the effect of quickly installing the trigger line through the engaging mechanism, improves the restart speed of the device after the fire ends, and improves the efficiency of the device.

[0024] 2. In this utility model, when connecting the valve body and the ventilation duct, the handle is pulled outward to push the pin rod, causing it to drive the limit block to compress the spring and retract into the mounting shell. The baffle plate automatically falls due to gravity, blocking the limit block and preventing it from moving. At this time, the ventilation duct and the valve body can be connected. After the connection is completed, the baffle plate is pulled up by the sliding plate. The spring force pushes the pin rod through the top of the valve body and engages with the outside of the ventilation duct to fix it. This achieves the effect of quickly connecting the valve body and the ventilation duct through the connecting mechanism, improving installation efficiency and the practicality of the device. Attached Figure Description

[0025] Figure 1 This is a perspective view of an explosion-proof, pressure-resistant fireproof valve proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the valve body of an explosion-proof, pressure-resistant, fireproof valve proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the controller for an explosion-proof, pressure-resistant fireproof valve proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the trigger wire of an explosion-proof, pressure-resistant fireproof valve proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the locking mechanism of an explosion-proof, pressure-resistant fireproof valve proposed in this utility model;

[0030] Figure 6 This is a cross-sectional view of the mounting shell of an explosion-proof, pressure-resistant fireproof valve proposed in this utility model.

[0031] Legend:

[0032] 1. Valve body; 2. Ventilation duct; 3. Door opening / closing; 4. Controller; 5. Reset valve; 6. Sensor; 7. Connecting rod; 8. Trigger wire; 9. Slot; 10. Slide rod; 11. Slider; 12. Reset spring; 13. Connecting rod; 14. U-shaped frame; 15. Locking rod; 16. Clamp; 17. Push handle; 18. Mounting shell; 19. Compression spring; 20. Limit block; 21. Pin; 22. Fixing box; 23. Slide plate; 24. Barrier plate; 25. Handle. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-5 An embodiment of this utility model is provided: an explosion-proof pressure-resistant fireproof valve, including a valve body 1, with ventilation ducts 2 slidably connected to both ends of the valve body 1, and a plurality of opening and closing doors 3 rotatably connected inside the valve body 1, the opening and closing doors 3 serving to open and close the fireproof valve, a controller 4 fixedly connected to the top of the valve body 1, the controller 4 serving to control the opening and closing doors 3, a reset valve 5 provided at the top of the controller 4, a triggering mechanism provided at the bottom of the controller 4, the triggering mechanism being used to close the opening and closing doors 3 by means of a fusible triggering mechanism when a fire occurs inside the ventilation duct 2, and a connecting mechanism provided at the top of the valve body 1, the connecting mechanism being used to quickly connect the valve body 1 and the ventilation duct 2;

[0035] The triggering mechanism includes a sensor 6, which serves to mount the connecting rod 7. The top of the sensor 6 is fixedly connected to the bottom of the controller 4, and the bottom of the sensor 6 is slidably connected to the connecting rod 7. The connecting rod 7 serves to connect the trigger wire 8, and the bottom of the connecting rod 7 is fixedly connected to the trigger wire 8. The connecting rod 7 has a slot 9 on its outside, which serves to lock and fix it. The sensor 6 is connected to the opening and closing door 3 through a fuse triggering mechanism. The sensor 6 has a locking mechanism inside, which is used to quickly replace the trigger wire 8. The engaging mechanism includes a slide rod 10, which connects to a slider 11. The slide rod 10 is slidably connected inside the sensor 6. A slider 11 is fixedly connected to the side of the slide rod 10 closest to the sensor 6, and the slider 11 connects to a return spring 12. A return spring 12 is fixedly connected to the side of the slider 11 furthest from the slide rod 10, and the return spring 12 provides elastic force to push the slider 11. Connecting rods 13 are rotatably connected to both sides of the slider 11, and the connecting rods 13 connect to U-shaped brackets 14. U-shaped brackets 14 are rotatably connected to the sides of both connecting rods 13 furthest from the slider 11. The frame 14 serves to connect the locking rod 15. The locking rod 15 is fixedly connected to the side of the two U-shaped frames 14 away from the connecting rod 13. The locking rod 15 serves to connect the clamp 16. The clamp 16 is fixedly connected to the opposite side of the two locking rods 15. The clamp 16 serves to lock and fix. Both clamps 16 are engaged with the slot 9. The slider 11 is slidably connected inside the sensor 6. Both connecting rods 13 are slidably connected inside the sensor 6. The end of the return spring 12 away from the slider 11 is fixedly connected inside the sensor 6. The push handle 17 is fixedly connected to the side of the slide rod 10 away from the slider 11.

[0036] Reference Figures 1-2 and Figure 6 The connecting mechanism includes four mounting shells 18, which serve to fix the internal structure. The bottom of each of the four mounting shells 18 is fixedly connected to the top of the valve body 1. A compression spring 19 is fixedly connected inside the mounting shell 18. The compression spring 19 provides elastic force to push the limiting block 20. The limiting block 20 is fixedly connected to the side of the compression spring 19 near the ventilation duct 2. The limiting block 20 prevents the compression spring 19 from falling off. A pin 21 is fixedly connected inside the limiting block 20. The pin 21 serves to engage and fix the valve body 1 and engage with the outside of the ventilation duct 2. The top of the mounting shell (19) is fixedly connected to a fixing box 22, which serves to fix the internal structure. The inside of the fixing box 22 is slidably connected to a sliding plate 23, which serves to connect to a barrier plate 24. The bottom of the sliding plate 23 is fixedly connected to a barrier plate 24, which serves to prevent the limit block 20 from moving. The bottom of the barrier plate 24 abuts against the top of the limit block 20. The limit block 20 is slidably connected inside the mounting shell 18. The side of the pin 21 away from the limit block 20 is fixedly connected to a handle 25.

[0037] Working principle: When the equipment is running normally, the opening and closing door 3 is open, and the ventilation duct 2 can work normally. When a fire occurs in the ventilation duct 2, the flame burns the trigger wire 8, which quickly closes the opening and closing door 3 through the sensor 6 to prevent the fire from spreading. After the fire is extinguished, the trigger wire 8 needs to be reconnected. Pushing the slider 10 inward by the push handle 17 causes the slider 11 to move inward and compress the return spring 12. When the slider 11 moves, it drives the U-shaped frame 14 through the connecting rods 13 on both sides, causing the two locking rods 15 to drive the two clamps 16 to separate relative to each other. At this time, the trigger wire 8 along with the connecting rod 7 can be slid into the bottom of the sensor 6. Releasing the push handle 17, the return force of the return spring 12 pushes the slider 11 to move outward, which drives the two locking rods 15 to drive the two clamps 16 to engage with the slot 9 to fix it, thus completing the installation.

[0038] When connecting valve body 1 and ventilation duct 2, pull pin 21 outward by handle 25, causing limit block 20 to compress spring 19 and retract into mounting shell 18. The baffle plate 24 will automatically fall due to gravity, blocking the limit block 20 and preventing it from moving. At this time, ventilation duct 2 and valve body 1 can be connected. After the connection is completed, pull up baffle plate 24 by sliding plate 23. The rebound force of spring 19 pushes pin 21 through the top of valve body 1 and engages with the outside of ventilation duct 2 for fixation.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof, pressure-resistant fireproof valve, comprising a valve body (1), characterized in that: Both ends of the valve body (1) are slidably connected to ventilation ducts (2). Several opening and closing doors (3) are rotatably connected inside the valve body (1). A controller (4) is fixedly connected to the top of the valve body (1). A reset valve (5) is provided on the top of the controller (4). A triggering mechanism is provided at the bottom of the controller (4). The triggering mechanism is used to close the opening and closing doors (3) by means of a fuse triggering mechanism when a fire occurs inside the ventilation duct (2). A connecting mechanism is provided on the top of the valve body (1). The connecting mechanism is used to quickly connect the valve body (1) and the ventilation duct (2). The triggering mechanism includes a sensor (6), the top of which is fixedly connected to the bottom of the controller (4), a connecting rod (7) is slidably connected to the bottom of the sensor (6), a trigger wire (8) is fixedly connected to the bottom of the connecting rod (7), a slot (9) is provided on the outside of the connecting rod (7), the sensor (6) is connected to the opening and closing door (3) through a fuse triggering mechanism, and a locking mechanism is provided inside the sensor (6) for quickly replacing the trigger wire (8).

2. The explosion-proof, pressure-resistant fireproof valve according to claim 1, characterized in that: The engaging mechanism includes a slide rod (10), which is slidably connected inside the sensor (6). A slider (11) is fixedly connected to the side of the slide rod (10) near the sensor (6). A return spring (12) is fixedly connected to the side of the slider (11) away from the slide rod (10). Connecting rods (13) are rotatably connected to both sides of the slider (11). A U-shaped frame (14) is rotatably connected to the side of the two connecting rods (13) away from the slider (11). A locking rod (15) is fixedly connected to the side of the two U-shaped frames (14) away from the connecting rods (13). A clamp (16) is fixedly connected to the opposite side of the two clamps (15). Both clamps (16) engage with the slot (9).

3. The explosion-proof, pressure-resistant fireproof valve according to claim 2, characterized in that: The slider (11) is slidably connected inside the sensor (6), and both connecting rods (13) are slidably connected inside the sensor (6).

4. The explosion-proof, pressure-resistant fireproof valve according to claim 2, characterized in that: The end of the reset spring (12) away from the slider (11) is fixedly connected to the inside of the sensor (6).

5. The explosion-proof, pressure-resistant fireproof valve according to claim 2, characterized in that: A push handle (17) is fixedly connected to the side of the slide bar (10) away from the slider (11).

6. The explosion-proof, pressure-resistant fireproof valve according to claim 1, characterized in that: The connecting mechanism includes four mounting shells (18), the bottom of which is fixedly connected to the top of the valve body (1). A compression spring (19) is fixedly connected inside the mounting shell (18). A limit block (20) is fixedly connected to the side of the compression spring (19) near the ventilation duct (2). A pin (21) is fixedly connected inside the limit block (20). The pin (21) passes through the valve body (1) and engages with the outside of the ventilation duct (2).

7. The explosion-proof, pressure-resistant fireproof valve according to claim 6, characterized in that: The top of the mounting shell (18) is fixedly connected to a fixing box (22), and a sliding plate (23) is slidably connected inside the fixing box (22). A barrier plate (24) is fixedly connected to the bottom of the sliding plate (23), and the bottom of the barrier plate (24) abuts against the top of the limiting block (20).

8. The explosion-proof, pressure-resistant fireproof valve according to claim 6, characterized in that: The limiting block (20) is slidably connected inside the mounting shell (18), and a handle (25) is fixedly connected to the side of the pin (21) away from the limiting block (20).

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