Gas pipeline purging device

Abstract

The invention discloses a fuel gas pipeline purging device, and relates to the technical field of fuel gas pipelines, the fuel gas pipeline purging device comprises a base station, the top end of the base station is provided with a fixed block, the top end of the fixed block is rotatably connected with a rotating block, the top ends of the rotating block and the fixed block are both provided with base plates, and the top ends of the two base plates are both provided with two-way screw rods; the outer surfaces of the two ends of the two-way screw are in threaded connection with clamping blocks correspondingly, and a gas compressor is arranged in the base table. By arranging a series of structures, the pipeline and the purging assembly are in accurate butt joint, the problems that according to a traditional device, multi-specification pipelines are large in fixing difficulty and unstable in clamping are solved, full-adaptive purging of linear and bent pipelines is achieved, purging dead corners are effectively eliminated, the problem that a traditional purging device is poor in cleaning effect is solved, and the cleaning efficiency is improved. And the automation degree of purging operation is improved so as to adapt to gas pipes of different models and sizes, and the application range of equipment is widened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas pipeline, in particular to a gas pipeline purging device. BACKGROUND

[0002] In the installation, repair, maintenance and other construction links of the gas pipeline, the inner wall of the pipeline is easy to leave welding slag, rust, dust, water and other construction impurities. If not thoroughly purged and cleaned, it will cause the gas delivery to be blocked, the valve and metering equipment to be worn, and even cause safety accidents such as gas leakage and deflagration after being put into use. Therefore, the purging and cleaning of the inner wall of the gas pipeline is a key process to ensure the safe and stable operation of the gas delivery system.

[0003] The current gas pipeline purging device and purging method used in the industry still has many technical defects and application drawbacks. The traditional purging method is to use a simple air compressor combined with a straight pipe nozzle, which can only achieve simple purging of straight pipelines. For curved and variable-diameter pipelines, the nozzle cannot adjust the purging angle, and impurities cannot be completely cleaned. The existing clamping and fixing structure is mostly a single-specification rigid clamp that can only adapt to gas pipelines of a specific diameter, has poor universality, and can easily scratch and deform the outer wall of the pipeline during clamping. At the same time, the clamp has no angle adjustment function, and the pipeline and the purging assembly are difficult to connect, which requires manual repeated adjustment and has low operation efficiency. The driving and purging modules of some purging devices are fixedly connected, which cannot be flexibly adjusted according to the pipeline direction, and the movement and purging operation in non-linear pipelines are hindered, which has poor adaptability. In addition, the traditional purging device has low automation, and the purging pressure, moving speed and other parameters cannot be accurately controlled. The operation process requires close-range manual operation, which not only has high labor intensity, but also has safety hazards such as high-pressure gas flow impact and pipeline displacement. Moreover, the purging effect lacks real-time monitoring, which makes it difficult to ensure the construction quality. At the same time, the functions of the existing purging equipment are scattered, and the clamping and fixing, gas supply, purging operation and state monitoring functions need to be realized by multiple equipment, which occupies a large area and has a complicated on-site assembly and debugging process, increasing the construction cost and operation time. The purging gas source of some devices is only single-pressurized, and the gas flow pressure and speed are insufficient, which has poor cleaning effect on stubborn welding slag, thick rust and other impurities on the inner wall of the pipeline, and needs to be repeatedly purged, further reducing the operation efficiency. SUMMARY

[0004] The present application aims to provide a gas pipeline purging device to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gas pipeline purging device, comprising a base, a fixed block at the top of the base, a rotating block rotatably connected to the top of the fixed block, a pad at the top of both the rotating block and the fixed block, a bidirectional screw at the top of each of the two pads, and clamps threaded to the outer surfaces of both ends of the bidirectional screw; a gas compressor is disposed inside the base, and two purging module housings are disposed at the output end of the gas compressor via two hoses; a drive module housing is disposed at the opposite ends of the two purging module housings, and a ball joint is connected to the opposite ends of the two drive modules; a control module is disposed inside both the drive module housing and the purging module; corresponding drive module housings and purging module housings extend from the outside of the two control modules, respectively; a track assembly is disposed outside the control module extending from the drive module housing, and an air blowing nozzle is disposed outside the control module extending from the purging module housing.

[0006] Preferably, a support platform is provided on the top of one side of the base to provide support for the placement and operation of the purging and drive modules. The housings of the purging module and the drive module are both placed on the top of the support platform. A monitoring and operation platform is provided at the top edge of the support platform to realize manual control and status monitoring of the purging operation.

[0007] Preferably, each of the four clamping blocks is provided with two spring telescopic rods inside to provide elastic lifting support for the upper clamping block and achieve flexible clamping. The top of the spring telescopic rod extends out of the clamping block, and the extended ends of the two spring telescopic rods are connected to another clamping block to form a double-layer clamping structure, which improves the stability of the pipe fixation. An adjusting screw is installed through the upper clamping block to precisely control the clamping height and force of the upper clamping block. The bottom end of the adjusting screw is rotatably connected to the top of the lower clamping block.

[0008] Preferably, the bottom of the rotating block passes through the fixed block and extends into the base, and a first motor is provided at the extended end of the rotating block to provide automatic power for the rotation of the rotating block and realize automatic adjustment of the clamping angle.

[0009] Preferably, the control module includes a support disk that provides stable support for the internal transmission components. Several positioning protrusions are arranged in a ring at equal intervals at the top edge of the support disk to limit and guide the rack. The outer surfaces of the positioning protrusions are slidably connected to the rack to realize power transmission and distribution. One side of the rack is meshed with a driven gear to receive and transmit the power of the driving gear. The outer surfaces of the driven gears are meshed with the driving gear to realize concentrated power input and uniform distribution.

[0010] Preferably, a second motor is provided at the top center of the drive gear to provide power for the internal transmission of the control module and realize automated control. The two support discs are respectively installed inside the drive module housing and the purging module housing to ensure that the drive and purging modules are independently and stably transmitted.

[0011] Preferably, the top and bottom of the track assembly are hingedly mounted with auxiliary hinge frames, allowing the track assembly to swing at multiple angles and move in contact with the inner wall of the pipe. The two auxiliary hinge frames are hinged together on the inner wall of the drive module housing.

[0012] Preferably, a gas pressurization module is provided inside the shell of the purging module near the corresponding control module to repressurize the gas source and enhance the purging cleaning effect. The gas pressurization module is connected to the air nozzle through a hose to achieve precise transmission of high-pressure gas. The two gas pressurization modules are respectively connected to the hose at the output end of the gas compressor.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This gas pipeline purging device, through the combined design of a bidirectional screw, double-layer clamping blocks, spring telescopic rod, and adjusting screw, achieves flexible and stable clamping of gas pipelines with different diameters and outer wall curvatures. At the same time, the rotating block, in conjunction with the first motor, can adjust the clamping angle, allowing the pipeline to be precisely connected to the purging components. This solves the problems of difficulty in fixing multi-specification pipelines and unstable clamping in traditional devices.

[0014] This gas pipeline purging device uses a ball joint to enable multi-angle rotation of the drive module and the purging module. Combined with a track assembly with an auxiliary articulation frame, the purging device can move flexibly inside curved pipes and adjust the purging angle by conforming to the inner wall. This achieves full compatibility purging of straight and curved pipes and effectively eliminates purging dead angles.

[0015] This gas pipeline purging device uses a gas compressor and a gas pressurization module for secondary pressurization, which increases the pressure of the purging airflow, allowing the purging nozzle to efficiently clean stubborn impurities from the inner wall of the pipeline, thus solving the problem of poor cleaning effect of traditional purging devices.

[0016] This gas pipeline purging device integrates transmission components such as motors, gears, and racks through a control module, which separately adjusts the outer diameter range of the track assembly and the air blowing nozzle. It is also equipped with a monitoring and control panel to realize human-machine interaction, thereby improving the automation level of the purging operation and adapting to different models and sizes of gas pipes, thus expanding the applicability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the drive module housing of the present invention; Figure 3 This is a schematic diagram of the internal structure of the purging module housing of the present invention; Figure 4 This is a schematic diagram of the pad structure of the present invention; Figure 5 This is a schematic diagram of the control module structure of the present invention.

[0018] In the diagram: 1. Base; 2. Pad; 3. Clamping block; 4. Rotating block; 5. Fixing block; 6. Monitoring and operating platform; 7. Drive module housing; 8. Support platform; 9. Purge module housing; 10. Control module; 11. Auxiliary articulated frame; 12. Track assembly; 13. Gas pressurization module; 14. Air nozzle; 15. Bidirectional screw; 16. Spring telescopic rod; 17. First motor; 18. Ball joint; 19. Adjusting screw; 1001. Second motor; 1002. Drive gear; 1003. Driven gear; 1004. Rack; 1005. Positioning protrusion; 1006. Support disc. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 5As shown, the gas pipeline purging device in this embodiment includes a base 1, which serves as the overall load-bearing foundation of the device and integrates functions such as gas supply and workstation support. A fixed block 5 is provided at the top of the base 1, acting as a basic connecting component to provide rotational support for the rotating block 4. It is rotatably connected to the rotating block 4 using precision bearings to ensure smooth and stable rotation. The fixed block 5 is welded to the top of the base 1, providing sufficient connection strength to prevent loosening or displacement after clamping the pipeline. The rotating block 4 is rotatably connected to the top of the fixed block 5, allowing it to rotate 360 ​​degrees around its vertical axis, enabling the gas pipeline clamped on it to freely adjust its circumferential angle and achieve precise docking between the pipeline and the purging components. It can also adapt to different placement angles and... To address the need for pipe clamping along the same direction and solve the problem of traditional fixed clamping's inability to adjust angles, both the rotating block 4 and the fixed block 5 are equipped with pads 2 at their tops. These pads are made of wear-resistant, non-slip, and elastic rubber. On one hand, they provide cushioning and protection for the outer wall of the gas pipeline, preventing damage or deformation caused by contact with the hard clamps 3. On the other hand, they increase the friction between the pipeline and the clamping surface, improving the stability of the clamping and preventing the pipeline from shifting due to airflow impact during purging operations. Both pads 2 are equipped with bidirectional screws 15 at their tops, made of high-strength threaded steel. The screws have opposite external threads at both ends, allowing the clamps 3 to move synchronously towards or away from each other via manual or electric rotation, thus adjusting the clamping distance. The stepless adjustment adapts to the clamping requirements of different pipe diameters, exhibiting good versatility. Both ends of the bidirectional screw 15 are threadedly connected to clamping blocks 3, serving as the core actuator for pipe clamping. Made of alloy material, the clamping surface features an arc-shaped anti-slip treatment, precisely engaging with the internal threads of the bidirectional screw 15. This allows for smooth movement as the screw rotates, achieving horizontal clamping and fixing of the gas pipeline, laying the foundation for subsequent double-layer clamping. The base 1 houses a gas compressor, serving as the core power source for purging operations. Employing a variable frequency screw compressor, it features high gas pressure, stable airflow, and low noise, continuously outputting high-pressure airflow to provide ample gas supply for pipeline purging. Its output end is equipped with a pressure regulator. The valve can adjust the airflow pressure according to the purging requirements. The output end of the gas compressor is equipped with two purging module housings 9 through two high-pressure hoses, which provide sealed protection and precise installation carriers for the internal components of the purging module. They are made of lightweight alloy material, which effectively reduces the overall weight of the purging module and facilitates its insertion into the pipeline. At the same time, airflow channels and component installation slots are reserved inside. The high-pressure hoses are connected to the air inlet of the housing through quick connectors to achieve efficient and sealed transmission of high-pressure gas source. The opposite ends of the two purging module housings 9 are equipped with drive module housings 7, which provide sealed protection and installation carriers for the internal components of the drive module. They are detachably connected to the purging module housings 9, which facilitates later maintenance and component replacement.It works in conjunction with the purging module housing 9 to achieve modular integration of drive movement and high-pressure purging functions, making the device structure more compact and its functions more integrated. The opposite ends of the two drive modules are connected by a ball joint 18, which adopts a universal ball joint structure design, enabling multi-dimensional and large-angle rotation between the drive module and the purging module. This allows the purging component to adaptively adjust the purging angle according to the direction of the curved pipe, completely eliminating the purging dead angle of the curved pipe and achieving comprehensive cleaning of the inner wall of the curve. Both the drive module housing 7 and the purging module are equipped with control modules 10, which are the core intelligent control components of the drive module and the purging module. They integrate power control, transmission regulation, and action command reception and execution functions, and independently control the moving speed and direction of the track assembly 12 and the purging start and stop and airflow distribution of the blowing nozzle 14, realizing automated and precise control of the purging operation. They can receive remote commands from the monitoring control panel 6 to achieve human-machine separation operation. The external of the two control modules 10 The drive module housing 7 and the purging module housing 9 extend out respectively. A track assembly 12 is externally mounted on the control module 10 extending from the drive module housing 7. This track assembly serves as the power component for the purging device to move inside the gas pipeline. It features a non-slip, wear-resistant rubber track design and, in conjunction with an independent drive motor, can drive the purging device to move smoothly along the inner wall of the pipeline. Whether the pipeline is straight or curved, it can smoothly conform to the inner wall, achieving purging operations throughout the entire pipeline's length. Its movement speed can be steplessly adjusted via the control module 10. An air-blowing nozzle 14 is externally mounted on the control module 10 extending from the purging module housing 9. This nozzle employs a multi-nozzle ring array design, with adjustable-angle high-pressure nozzles that convert high-pressure air into multi-directional, high-velocity directional purging airflow. This airflow directly acts on the inner wall of the gas pipeline, achieving efficient purging and cleaning of dust, welding slag, rust, accumulated water, and other impurities. The purging angle of the nozzles can be manually adjusted as needed, improving the targeted nature of the purging.

[0022] Preferably, a support platform 8 is provided on the top of one side of the base 1 to provide support for the placement and operation of the purging and drive modules. The purging module housing 9 and the drive module housing 7 are both placed on the top of the support platform 8. A monitoring and operation platform 6 is provided at the top edge of the support platform 8 to realize manual control and status monitoring of the purging operation.

[0023] Preferably, each of the four clamping blocks 3 is provided with two spring telescopic rods 16 to provide elastic lifting support for the upper clamping block 3 and achieve flexible clamping. The top of the spring telescopic rod 16 extends out of the clamping block 3, and the extended ends of the two spring telescopic rods 16 are connected to another clamping block 3 to form a double-layer clamping structure, which improves the stability of the pipe fixation. An adjusting screw 19 is provided through the upper clamping block 3 to precisely control the clamping height and force of the upper clamping block 3. The bottom end of the adjusting screw 19 is rotatably connected to the top of the lower clamping block 3.

[0024] Preferably, the bottom of the rotating block 4 passes through the fixed block 5 and extends into the base 1. The extended end of the rotating block 4 is provided with a first motor 17 to provide automatic power for the rotation of the rotating block 4 and realize automatic adjustment of the clamping angle.

[0025] Preferably, the control module 10 includes a support disk 1006 to provide stable support for the internal transmission components. Several positioning protrusions 1005 are arranged in a ring at equal intervals at the top edge of the support disk 1006 to limit and guide the rack 1004. The rack 1004 is slidably connected to the outer surface of the positioning protrusions 1005 to realize power transmission and distribution. Driven gears 1003 are meshed on one side of the racks 1004 to receive and transmit the power of the driving gear 1002. The outer surface of the driven gears 1003 is meshed with the driving gear 1002 to realize concentrated power input and uniform distribution.

[0026] Preferably, a second motor 1001 is provided at the top center of the drive gear 1002 to provide power for the internal transmission of the control module 10 and realize automated control. Two support discs 1006 are respectively installed inside the drive module housing 7 and the purging module housing 9 to ensure that the drive and purging modules are independently and stably transmitted.

[0027] Preferably, auxiliary hinge frames 11 are hinged to the top and bottom of the track assembly 12, allowing the track assembly 12 to swing at multiple angles and move in contact with the inner wall of the pipe. The two auxiliary hinge frames 11 are hinged together to the inner wall of the drive module housing 7.

[0028] Furthermore, a gas pressurization module 13 is installed inside the purging module housing 9 near the corresponding control module 10 to repressurize the gas source and enhance the purging cleaning effect. The gas pressurization module 13 is connected to the air nozzle 14 through a hose to achieve precise transmission of high-pressure gas source. The two gas pressurization modules 13 are respectively connected to the hose at the output end of the gas compressor.

[0029] The usage method of this embodiment is as follows: Before operation, check whether the connections of each component of the device are secure, whether the high-pressure hose is damaged or leaking, whether the clamping assembly and track assembly 12 are flexible, whether the gas compressor, motor, and control module 10 are normal, and whether the display on the monitoring control panel 6 is accurate. After ensuring that all components are fault-free, turn on the main power supply of the equipment and perform no-load debugging; then clamp and fix the gas pipeline. First, place the gas pipeline to be purged stably on the pad 2. Rotate the bidirectional screw 15 according to the pipe diameter to drive the clamping blocks 3 at both ends to move towards each other to achieve initial horizontal clamping of the pipeline. Then, rotate the adjusting screw 19 of the upper clamping block 3 to drive the upper clamping block 3 to move towards each other. Block 3 descends vertically, coordinating with the elastic support of the spring telescopic rod 16 to achieve double-layer clamping of the pipe. Simultaneously, the clamping force is precisely adjusted according to the pipe wall thickness and material, ensuring stability while preventing pipe deformation. If the pipe's angle with the purging assembly is incorrect, the first motor 17 can be activated via the monitoring control panel 6, driving the rotating block 4 to rotate and adjust the pipe to the specified angle, which is then locked by the motor's self-locking mechanism. Next, the purging and drive modules are assembled and debugged. First, the purging module housing 9 and the drive module housing 7 are precisely connected via the ball joint 18, and the connection is checked for secureness. Then, the connected modules are placed on the support platform 8, and the high-pressure hoses are connected... Connect the gas compressor output to the gas pressurization module 13, and the gas pressurization module 13 to the air blowing nozzle 14, ensuring a leak-free connection. Then, start the control module 10 via the monitoring control panel 6 to test the movement speed and direction of the track assembly 12 and the purging status of the air blowing nozzle 14 under no-load conditions. Adjust the base pressure of the gas compressor and the secondary pressurization factor of the gas pressurization module 13 according to the purging requirements, and set the purging operation parameters. After completing the debugging, perform the internal purging operation of the pipeline. First, smoothly insert the debugged purging + drive module into the gas pipeline, ensuring that the track assembly 12 fits tightly against the inner wall of the pipeline. Then, start the control module 10 via the monitoring control panel 6. The operator sends a work order, starts the track assembly 12, and drives the purging module to move slowly along the inner wall of the pipe. At the same time, the air nozzles 14 are activated, allowing high-pressure airflow to spray from multiple nozzles to purify the inner wall of the pipe in all directions. If the pipe is curved, the ball joint 18 will automatically adjust the angle of the module. The auxiliary articulation frame 11 drives the track assembly 12 to move in close contact with the inner wall of the curve. The air nozzles 14 adaptively adjust the purging direction according to the angle of the module to achieve purging without dead angles in the curve. During the operation, the operator can monitor parameters such as airflow pressure, track speed, and module position in real time through the monitoring control panel 6, and adjust the operation parameters at any time according to the condition of impurities on the inner wall of the pipe to ensure the cleaning effect.Finally, the purging operation is completed. After the purging module has completed purging the entire pipeline, the track assembly 12 is moved in reverse by the monitoring control panel 6 to smoothly remove the module from the pipeline. Then, the gas compressor and gas pressurization module 13 are turned off to stop the gas supply. The control module 10 is turned off and the main power supply of the equipment is cut off. Then, the bidirectional screw 15 and adjusting screw 19 are rotated to loosen the double-layer clamping block 3 and smoothly remove the purged gas pipeline. Finally, the device is cleaned, removing impurities from the clamping components and purging module. The high-pressure hose, nozzles, and other components are checked for blockages or damage. Vulnerable parts are maintained and serviced. The device is then stored in a dry and ventilated environment.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A gas pipeline purging device, comprising a base (1), characterized in that: A fixing block (5) is provided at the top of the base (1), and a rotating block (4) is rotatably connected to the top of the fixing block (5). A pad (2) is provided at the top of both the rotating block (4) and the fixing block (5). A bidirectional screw (15) is provided at the top of each of the two pads (2). A clamping block (3) is threaded to the outer surface of both ends of the bidirectional screw (15). A gas compressor is provided inside the base (1). Two purge module housings (9) are provided at the output end of the gas compressor through two hoses. The two purge module housings (9) are connected to each other. Both ends are provided with drive module housings (7), and the opposite ends of the two drive modules are connected by ball joints (18). Both the drive module housings (7) and the purge module are provided with control modules (10). The two control modules (10) extend out of the corresponding drive module housings (7) and purge module housings (9). The control modules (10) extending out of the drive module housings (7) are provided with track assemblies (12), and the control modules (10) extending out of the purge module housings (9) are provided with air nozzles (14).

2. The gas pipeline purging device according to claim 1, characterized in that: A support platform (8) is provided on the top of one side of the base (1). The purge module housing (9) and the drive module housing (7) are both placed on the top of the support platform (8). A monitoring operation platform (6) is provided at the top edge of the support platform (8).

3. The gas pipeline purging device according to claim 1, characterized in that: Each of the four clamping blocks (3) is provided with two spring telescopic rods (16). The top of the spring telescopic rods (16) extends out of the clamping block (3). The extended ends of the two spring telescopic rods (16) are connected to another clamping block (3). An adjusting screw (19) is provided through the upper clamping block (3). The bottom end of the adjusting screw (19) is rotatably connected to the top of the lower clamping block (3).

4. The gas pipeline purging device according to claim 1, characterized in that: The bottom of the rotating block (4) passes through the fixed block (5) and extends into the base (1). The extended end of the rotating block (4) is provided with a first motor (17).

5. The gas pipeline purging device according to claim 1, characterized in that: The control module (10) contains a support disk (1006). Several positioning protrusions (1005) are arranged in a ring at equal intervals at the top edge of the support disk (1006). A rack (1004) is slidably connected to the outer surface of each of the positioning protrusions (1005). A driven gear (1003) is meshed with one side of each of the racks (1004). A driving gear (1002) is meshed with the outer surface of each of the driven gears (1003).

6. The gas pipeline purging device according to claim 5, characterized in that: A second motor (1001) is provided at the top center of the drive gear (1002), and the two support discs (1006) are respectively installed inside the drive module housing (7) and the purging module housing (9).

7. The gas pipeline purging device according to claim 5, characterized in that: The track assembly (12) is hinged at both the top and bottom with auxiliary hinge frames (11), and the two auxiliary hinge frames (11) are hinged together on the inner wall of the drive module housing (7).

8. The gas pipeline purging device according to claim 5, characterized in that: A gas pressurization module (13) is provided inside the outer shell (9) of the purging module near the corresponding control module (10). The gas pressurization module (13) is connected to the air nozzle (14) through a hose. The two gas pressurization modules (13) are respectively connected to the hose at the output end of the gas compressor.

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