A pipe blockage clearing device

Abstract

This utility model relates to the field of pipeline dredging technology and discloses a pipeline blockage dredging device, including a connecting flange, a dredging steel rod, and at least two mounting rods. The dredging steel rod is inserted through the center of the connecting flange. A packing clamping mechanism is provided on the connecting flange to form a seal between the connecting flange and the dredging steel rod. The mounting rods are located on the circumference of the connecting flange, and a sliding plate is slidably provided in the inner cavity of the mounting rod. The sliding plate drives a locking block to extend or retract. The mounting rods are used to insert into the flange hole of the valve in the pipeline to be dredged. In this utility model, dynamic sealing is achieved through the connection of the connecting flange and the packing clamping mechanism, effectively solving the problem of media leakage and achieving leak-free and efficient dredging. The guiding and limiting mechanism ensures that the dredging steel rod is stable and controllable, preventing it from being ejected under high pressure and causing injury, greatly improving the safety of pipeline dredging operations involving hazardous media.

Description

Technical Field

[0001] This utility model relates to the field of pipeline dredging technology, and in particular to a pipeline blockage dredging device. Background Technology

[0002] In petrochemical production, especially in core process units such as catalytic cracking, pipelines that transport powdered or granular solid materials (such as catalysts) using gas are critical equipment for ensuring the continuous and stable operation of the unit. In these systems, materials flow at high speeds under high temperature and pressure conditions. Even minor fluctuations in process parameters, such as improper ratios of the transport gas flow to the solid material, can easily lead to material accumulation and blockages at pipe bends, valves, and other localized locations. Once a pipeline is blocked, it directly affects catalyst circulation and may even cause a cascading shutdown of the entire unit, resulting in significant economic losses. Therefore, the rapid, safe, and effective handling of such blockages is a crucial aspect of ensuring stable production operation.

[0003] Currently, the common method for handling such pipeline blockages is to utilize the pre-installed drain valves or drain ports at the bottom of the pipeline. A typical on-site procedure involves the operator, after taking basic protective measures, slowly opening the drain valve, attempting to flush out the blockage catalyst using the pipeline's own pressure. If the internal pressure is insufficient to dislodge the blockage, external tools may be needed for assistance. For example, with the valve partially open, a simple long metal rod or steel rod can be inserted through the valve opening to poke and agitate the blockage, breaking down its dense structure and allowing it to loosen and be expelled under the pressure of the medium.

[0004] However, the aforementioned existing technologies have serious safety hazards and technical defects in practical applications. Because the unblocking operation is carried out in an open or semi-open system, an effective pressure seal cannot be formed between the unblocking tool (such as a steel rod) and the drain valve. The moment the blockage is cleared, the high-temperature, high-pressure catalyst accumulated inside the pipeline will be ejected at high speed along the gap between the steel rod and the valve, creating a violent backflow that can easily cause burns or inhalation injuries to operators. Simultaneously, the unblocking steel rod itself will also be subjected to enormous reverse impact force, posing a risk of being instantly pushed out or even ejected, causing injury. This unsealed and uncontrollable unblocking method makes the entire operation extremely uncertain and dangerous, failing to meet the stringent requirements of modern chemical safety production. Therefore, a pipeline blockage unblocking device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pipeline blockage clearing device, aiming to improve the defect of existing technology where the tool cannot effectively seal with the drain valve when clearing pipelines. When the blockage is cleared, high-temperature and high-pressure materials will instantly backflow, and the clearing tool itself is at risk of being ejected, posing a serious safety threat to the operator.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipeline blockage clearing device, comprising a connecting flange, a clearing steel rod, and at least two mounting rods;

[0007] The unblocking steel rod is inserted through the center of the connecting flange;

[0008] The connecting flange is provided with a packing clamping mechanism, which is used to form a seal between the connecting flange and the unblocking steel rod.

[0009] The mounting rod is located on the circumference of the connecting flange. A sliding plate is slidably provided inside the mounting rod, and the sliding plate drives the locking block to extend or retract. The mounting rod is used to insert into the flange hole of the valve of the pipeline to be unclogged, and is engaged and fixed with the valve flange by the locking block.

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

[0011] A sliding rod is fixedly connected to one side of the sliding plate inside the mounting rod cavity. A pull ring is provided on the sliding rod to drive the sliding plate to slide.

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

[0013] A hinge seat is fixedly connected to the other side of the sliding plate, and a symmetrical rotating plate is rotatably connected inside the hinge seat. The locking block is rotatably connected to the outer wall of the rotating plate.

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

[0015] One side of the card block is rotatably connected to the inner cavity sidewall of the mounting rod via a hinge block.

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

[0017] A limiting mechanism is provided on one side of the outer wall of the unblocking steel rod, which is used to prevent the unblocking steel rod from completely retracting under the pressure inside the pipeline.

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

[0019] A guide mechanism is provided on one side of the connecting flange, which is used to support and guide the reciprocating motion of the unblocking steel rod.

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

[0021] The mounting rod is equipped with a spring, which provides a restoring force to the sliding plate so that the locking block remains in the engaged state.

[0022] As a further description of the above technical solution:

[0023] A mounting plate is fixed to one side of the outer wall of the mounting rod, and the mounting plate is used to abut against the outer surface of the connecting flange during installation.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, by setting a connecting flange to match and connect with the flange face of the valve to be unclogged, and using a packing clamping mechanism to perform circumferential dynamic sealing on the unclogging steel rod passing through it, the problem of media leakage caused by the inability to form a reliable seal in traditional unclogging methods is effectively solved. This design not only achieves leak-free operation, ensuring the efficiency and thoroughness of unclogging operations, but more importantly, with the assistance of guiding and limiting mechanisms, it ensures the stability and controllability of the unclogging steel rod during operation, avoiding the risk of injury caused by the steel rod popping out due to high pressure impact, greatly protecting the safety of operators, and is especially suitable for handling pipelines with corrosive, high-temperature, and high-pressure hazardous media.

[0026] 2. In this utility model, by directly inserting multiple mounting rods into the flange holes of equipment such as condensate drain valves, the internal springs automatically push the sliding plate. The sliding plate then drives the hinge seat and rotating plate, causing the locking block to rotate outward and securely engage with the other side of the valve flange. The entire installation process eliminates the need for traditional bolts for individual tightening, making the operation extremely simple and quick, significantly reducing preparation time. When disassembly is required, simply pull the pull rings on each mounting rod outward simultaneously. The pull rings, through the sliding rod, drive the sliding plate to overcome the spring force, causing the rotating plate to rotate in the opposite direction and retract the locking block, thus achieving quick unlocking and disassembly of the connecting flange, significantly improving work efficiency. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a pipeline blockage clearing device proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the limiting mechanism of a pipeline blockage clearing device proposed in this utility model;

[0029] Figure 3 This is a schematic diagram of the installation rod part of the pipeline blockage clearing device proposed in this utility model;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the image.

[0031] Legend:

[0032] 1. Connecting flange; 2. Guide mechanism; 3. Unblocking steel rod; 4. Limiting mechanism; 5. Packing clamping mechanism; 6. Mounting rod; 7. Mounting plate; 8. Sliding rod; 9. Sliding plate; 10. Pull ring; 11. Spring; 12. Hinge seat; 13. Rotating plate; 14. Locking block; 15. Hinge block. 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 Figure 1 - Figure 4This utility model provides an embodiment of a pipeline blockage clearing device, comprising a connecting flange 1, a clearing steel rod 3, and at least two mounting rods 6. The connecting flange 1 serves as the main frame of the entire device and is used to connect with the valve of the pipeline to be cleared. The clearing steel rod 3 is the core component for performing the clearing operation, and the mounting rods 6 are used to achieve a quick and secure connection between the device and the valve. The clearing steel rod 3 is axially inserted through the center of the connecting flange 1 to ensure that the clearing force is accurately applied to the center of the pipeline blockage. A packing clamping mechanism 5 is provided on the connecting flange 1, which is used to press the packing clamping mechanism between the connecting flange 1 and the reciprocating clearing steel rod. A reliable dynamic seal is formed between the three flanges to prevent leakage of high-temperature and high-pressure media inside the pipeline during the unblocking operation. The mounting rod 6 is evenly distributed around the circumference of the connecting flange 1, and a sliding plate 9 is slidably installed inside its cavity. This sliding plate 9 is driven by an internal linkage mechanism to extend or retract radially through a locking block 14. When in use, the mounting rod 6 is inserted into the flange hole of the valve in the pipeline to be unblocked, and engages with the back of the valve flange through the extended locking block 14, thus quickly fixing the device. A sliding rod 8 is fixedly connected to one side of the sliding plate 9 inside the mounting rod 6, and a pull ring 10 is provided on the sliding rod 8, which provides a convenient manual operation for the operator. The sliding plate 9 is used as an interface to drive the sliding plate 9 to move and unlock the locking block 14. A hinge seat 12 is fixedly connected to the other side of the sliding plate 9. A symmetrical rotating plate 13 is rotatably connected inside the hinge seat 12, and the locking block 14 is rotatably connected to the outer wall of the rotating plate 13. This structure forms a precision linkage mechanism that converts the linear motion of the sliding plate 9 into the swinging extension action of the locking block 14. One side of the locking block 14 is rotatably connected to the inner wall of the mounting rod 6 via a hinge block 15, which provides a stable fulcrum for the rotation of the locking block 14. A limit mechanism 4 is provided on one side of the outer wall of the unblocking steel rod 3. This limit mechanism 4 serves as an important safety barrier to prevent unblocking... The steel rod 3 is completely pushed out under the impact of the strong pressure inside the pipeline, avoiding the occurrence of safety accidents; a guide mechanism 2 is provided on one side of the connecting flange 1, which provides precise support and guidance for the reciprocating motion of the steel rod 3, ensuring the smoothness and effectiveness of the unblocking operation; a spring 11 is provided inside the mounting rod 6, which provides continuous reset force to the sliding plate 9, ensuring that the locking block 14 can automatically remain in the extended and engaged state after installation, realizing self-locking; a mounting plate 7 is fixed on one side of the outer wall of the mounting rod 6, which is used to abut against the outer surface of the valve flange to be unblocked during installation, playing a role in positioning and stable support.

[0035] Specifically, during installation, each mounting rod 6 is inserted into the valve flange hole. The internal spring 11 automatically pushes the sliding plate 9, and through the linkage of the hinge seat 12 and the rotating plate 13, the locking block 14 extends and locks the valve flange, completing a quick self-locking process. During operation, the packing clamping mechanism 5 forms a tight seal on the unblocking steel rod 3. With the assistance of the guide mechanism 2, the operator stably operates the steel rod, while the limiting mechanism 4 prevents the steel rod from being ejected under high pressure. After unblocking, simply pull the pull ring 10, which, through the sliding rod 8, drives the sliding plate 9 to overcome the elasticity of the spring 11, causing the locking block 14 to retract, allowing for quick disassembly of the entire device. This design integrates installation, sealing, unblocking, limiting, and disassembly functions, significantly improving operational safety and efficiency.

[0036] Working principle: When using this device, first align the connecting flange 1 of the device with the flange face of the valve in the pipeline to be unclogged, and insert the multiple mounting rods 6 set around the circumference of the connecting flange 1 into the bolt holes of the valve flange. During the insertion process, the mounting plate 7 acts as a positioning and abutment. After the rods are in place, the spring 11 inside automatically pushes the sliding plate 9. The sliding plate 9, through the hinge seat 12 on its other side, pushes the left and right symmetrical rotating plates 13 to rotate, thereby causing the rotating connecting locking block 14 to swing outward and reliably lock onto the back of the valve flange, thus achieving a quick and stable connection between the entire device and the valve.

[0037] Secondly, after the connection is fixed, the operator can open the pipeline valve. At this time, the packing clamping mechanism 5 forms an effective dynamic seal on the outer wall of the unblocking steel rod 3, preventing the medium in the pipeline from leaking under high pressure. The operator holds the unblocking steel rod 3 and, guided by the guide mechanism 2, reciprocates to poke and stir it to clear the blockage in the pipe. During this process, the limiting mechanism 4 ensures that the unblocking steel rod 3 will not be completely pushed out due to the pressure inside the pipe, ensuring operational safety.

[0038] Finally, after the unblocking operation is completed, close the pipeline valve. The operator pulls the pull ring 10 on each mounting rod 6 outwards. The pull ring 10 pulls the sliding plate 9 backwards via the sliding rod 8, compressing the spring 11. The movement of the sliding plate 9 causes the rotating plate 13 to rotate in the opposite direction, driving the locking block 14 to retract inwards, disengaging from the valve flange. After all locking blocks 14 have retracted, the entire device can be quickly removed from the valve.

[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. A pipeline blockage unblocking device, characterised in that, Includes a connecting flange (1), a dredging steel rod (3), and at least two mounting rods (6); The unblocking steel rod (3) is inserted through the center of the connecting flange (1); The connecting flange (1) is provided with a packing clamping mechanism (5), which is used to form a seal between the connecting flange (1) and the unblocking steel rod (3); The mounting rod (6) is located on the circumference of the connecting flange (1). A sliding plate (9) is slidably provided in the inner cavity of the mounting rod (6). The sliding plate (9) drives the locking block (14) to extend or retract. The mounting rod (6) is used to insert into the flange hole of the valve to be unclogged and is engaged and fixed with the valve flange by the locking block (14).

2. A pipeline clearing device according to claim 1, wherein: A sliding rod (8) is fixedly connected to one side of the sliding plate (9) inside the mounting rod (6). A pull ring (10) is provided on the sliding rod (8) to drive the sliding plate (9) to slide.

3. A pipeline clearing device according to claim 2, wherein: A hinge seat (12) is fixedly connected to the other side of the sliding plate (9). A rotating plate (13) with left and right symmetry is rotatably connected inside the hinge seat (12). The locking block (14) is rotatably connected to the outer wall of the rotating plate (13).

4. A line clearing device according to claim 3, wherein: One side of the locking block (14) is rotatably connected to the inner cavity sidewall of the mounting rod (6) via a hinge block (15).

5. A pipeline blockage clearing device according to claim 1, characterized in that: A limiting mechanism (4) is provided on one side of the outer wall of the unblocking steel rod (3). The limiting mechanism (4) is used to prevent the unblocking steel rod (3) from completely exiting under the pressure inside the pipeline.

6. A pipeline blockage clearing device according to claim 1, characterized in that: A guide mechanism (2) is provided on one side of the connecting flange (1), which is used to provide support and guidance for the reciprocating motion of the unblocking steel rod (3).

7. A pipeline blockage clearing device according to claim 2, characterized in that: The mounting rod (6) is equipped with a spring (11), which provides a reset force to the sliding plate (9) so that the locking block (14) remains in the locked state.

8. A line clearing device according to claim 1, wherein: An installation piece (7) is fixed to one side of the outer wall of the installation rod (6), and the installation piece (7) is used to abut against the outer surface of the connecting flange (1) during installation.

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