Ball pushing system for cleaning inner wall of pipeline

Abstract

The utility model discloses a ball pushing system for pipeline inner wall cleaning and belongs to the technical field of pipeline cleaning. Comprising a push ball storage tank used for storing small cleaning balls; the air inlet valve I is used for providing positive pressure to push the cleaning ball to move along the main conveying pipeline; the first pneumatic ball valve is used for adjusting the initial pressure of the push ball; the first pressure sensor is used for monitoring the pressure of the system; the second pneumatic ball valve is used for blocking reverse conveying of the slurry when the slurry is fed; the third pneumatic ball valve is used for cutting off the slurry conveying channel; the three-way ball valve is used for isolating the slurry during solvent circulation and isolating the solvent during slurry feeding; the diaphragm pump is used for extracting the solvent from the solvent storage tank and starting solvent circulation; the solvent storage tank is used for storing a solvent; and the discharge valve is used for accurately regulating and controlling the discharge speed and flow of the small cleaning balls. According to the utility model, the jamming effect is avoided, the ball pushing resistance is reduced, and the vicious circle blockage problem is solved; jet flow impact generated by instantaneous release of compressed gas is eliminated, and the safety of an equipment sealing structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to a ball-pushing system for cleaning the inner wall of a pipe, belonging to the field of pipe cleaning technology. Background Technology

[0002] In pipeline systems transporting battery insulating materials, the inner walls of the pipes often adhere to substances. Current technology typically uses a sphere with a diameter slightly smaller than the inner diameter of the pipeline for physical cleaning. Theoretically, this cleaning sphere, when passed through the pipeline under pressure, should remove the adhering slurry and other impurities. However, existing ball-pushing systems have the following technical drawbacks:

[0003] 1. Sending ball-end hydrodynamic defects

[0004] There is a dead zone of about 1 meter in length at the outlet of the ball delivery device. In this area, insufficient fluid shear force causes the slurry to agglomerate and form hardened lumps. When the cleaning ball passes through this area, the dry material and the ball create a jamming effect, causing blockage of the ball pushing system.

[0005] 2. Limitations in the structural design of the ball-launching device

[0006] The existing ball-launching device uses a straight pipe structure approximately 2 meters in length, with an excessively large ratio of axial length to the diameter of the cleaning ball. Towards the end of the ball-launching operation, residual slurry, lacking an effective discharge mechanism, forms a ring-shaped deposit layer on the inner wall of the pipe. With repeated ball-launching operations, this deposit layer gradually accumulates and generates frictional torque with the cleaning ball, eventually causing ball jamming. Furthermore, the device requires complete disassembly for cleaning and maintenance, resulting in a negative correlation between operational complexity and efficiency.

[0007] 3. Problem of ball pushing resistance in long-distance transportation pipelines

[0008] The slurry conveying pipeline from the batching workshop to the coating workshop is 100 meters long. The cleaning balls need to overcome the frictional resistance and local resistance along the pipeline when pushing the viscous slurry. As the pushing distance increases, the amount of slurry adhering to the ball surface increases non-linearly, resulting in a reduction in the effective flow cross-section, an increase in system pressure loss, and a vicious cycle until complete blockage.

[0009] 4. Insufficient safety performance of the ball collection device

[0010] The existing ball collecting device lacks pressure relief and directional drainage design. When the cleaning ball reaches the collecting position, the compressed gas in the pipeline is released instantaneously, carrying residual slurry to form a high-speed jet. This jet not only causes material loss, but its reaction force may also damage the sealing structure of the ball collecting device, posing a significant safety hazard. Utility Model Content

[0011] To address the problems existing in the background technology, this utility model provides a ball-pushing system for cleaning the inner wall of pipes.

[0012] To achieve the above objectives, this utility model adopts the following technical solution: a ball-pushing system for cleaning the inner wall of a pipe, comprising...

[0013] A ball-pushing storage trough is located at the starting end of the ball-pushing system and is used to store cleaning balls; the ball-pushing storage trough has an open design.

[0014] An air inlet valve, located at the rear of the ball storage tank, provides positive pressure to propel the cleaning balls along the main conveying pipeline, pushing residual slurry to the transfer tank. A pressure relief valve is located at the front of the pneumatic ball valve to regulate system pressure during operation. A backup valve is located at the front of the pressure relief valve to be activated in case of a main control valve failure.

[0015] Pneumatic ball valve one is located on the front side of the ball pusher storage slot and is linked with air inlet valve one to adjust the initial pressure of the ball pusher;

[0016] Pressure sensor one is located in front of pneumatic ball valve one and is connected to the control system signal to monitor the system pressure;

[0017] Pneumatic ball valve 2 is located in front of pressure sensor 1 and is used to cut off reverse conveying of slurry during slurry feeding.

[0018] Pneumatic ball valve three, located in front of pneumatic ball valve two, is used to cut off the slurry conveying channel and ensure solvent circulation;

[0019] A three-way ball valve is located between pneumatic ball valve two and pneumatic ball valve three, and is installed on the slurry feeding pipeline. It is used to cut off the slurry during solvent circulation and to cut off the solvent during slurry feeding.

[0020] A diaphragm pump, connected between a three-way ball valve and a solvent storage tank, is used to draw solvent from the solvent storage tank and start solvent circulation; a filter is provided on the rear side of the diaphragm pump to filter out dry materials and impurities generated during solvent circulation.

[0021] A solvent storage tank, located between the diaphragm pump and the beginning of the main delivery pipeline, is used to store solvents;

[0022] The discharge valve, located at the front of the solvent storage tank, is used to precisely control the discharge speed and flow rate of the cleaning balls.

[0023] The ball-pushing system also includes a multi-stage sewage discharge mechanism for cleaning long-distance pipelines. Each set of the sewage discharge mechanism includes...

[0024] Pneumatic ball valve four is located in front of pneumatic ball valve three and is connected to the main conveying pipeline. It is used to isolate the slurry conveying channel and realize segmented material discharge.

[0025] A pressure gauge is installed on the front side of the pneumatic ball valve four to monitor the pressure of the sewage discharge section pipeline in real time.

[0026] Pressure relief valve 2 is located in front of the pressure gauge and is connected to the control system signal. It is used to regulate the pressure of the sewage discharge section pipeline.

[0027] Intake valve two is located in front of pressure relief valve two and is used to provide positive pressure gas;

[0028] Position sensor one is located in front of air intake valve two and is connected to the control system signal. It is used to sense the position of the cleaning ball and dynamically adjust the opening of air intake valve two and the switching sequence of pneumatic ball valve five.

[0029] Pneumatic ball valve five is located in front of position sensor one and is connected to the main conveying pipeline. It is used to isolate the slurry conveying channel and realize segmented material discharge.

[0030] The pneumatic ball valve six is ​​located between the air inlet valve two and the pressure relief valve two, and is used to discharge slurry and impurities.

[0031] The ball-pushing system also includes a ball-collecting mechanism for the efficient recovery and safe discharge of the cleaning balls. The ball-collecting mechanism includes...

[0032] Pneumatic ball valve nine, located in front of pneumatic ball valve five, is the main control valve for the ball receiving mechanism;

[0033] Pressure relief valve three is located in front of pneumatic ball valve nine and forms a pressure linkage with air intake valve three to maintain pressure balance;

[0034] The third air intake valve is located in front of the third pressure relief valve and is used to dynamically adjust the air supply according to the signal of the second position sensor to provide positive pressure for the movement of the cleaning ball.

[0035] Pneumatic ball valve 10 is located in front of air inlet valve 3 and is used to discharge slurry and impurities;

[0036] Position sensor 2 is located on the front side of pneumatic ball valve 10 and is connected to the control system signal. It is used to sense the position of the cleaning ball and dynamically adjust the opening of air inlet valve 3.

[0037] Pneumatic ball valve eight is located in front of position sensor two and operates synchronously with pneumatic ball valve seven to enhance system reliability;

[0038] Pneumatic ball valve seven is located in front of pneumatic ball valve eight and is linked with pneumatic ball valve eight to control the opening and closing of the ball receiving channel.

[0039] Blind flanges are detachable and installed at the end of the main delivery pipeline for system isolation, equipment maintenance, or to close the pipeline in an emergency.

[0040] Compared with the prior art, the beneficial effects of this utility model are:

[0041] 1. This utility model adds a solvent circulation system, which forms a circulation loop with the diaphragm pump and the solvent storage tank. The solvent is used to flush the dead corner area of ​​the pipeline, effectively eliminating the dry hard blocks formed by slurry agglomeration, avoiding the jamming effect, and realizing solvent recycling and reuse, reducing material loss.

[0042] 2. This utility model adopts a multi-stage sewage discharge mechanism design, with a pneumatic sewage discharge component configured every 30m of pipeline to discharge residual slurry in stages, significantly reducing slurry adhesion and accumulation during long-distance transportation, reducing ball pushing resistance, and solving the problem of vicious cycle of blockage;

[0043] 3. The ball receiving mechanism of this utility model integrates a pressure linkage control module, which dynamically adjusts the opening of the air inlet valve through a position sensor. Combined with the directional sewage discharge channel and blind plate isolation design, it eliminates the jet flow impact generated by the instantaneous release of compressed gas and ensures the safety of the equipment's sealing structure. Attached Figure Description

[0044] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0045] Figure 2 yes Figure 1 A three-dimensional image;

[0046] Figure 3 yes Figure 2 Top view;

[0047] Figure 4 This is a schematic diagram of the sewage discharge mechanism in Example 2;

[0048] Figure 5 This is a schematic diagram of the ball-collecting mechanism in Example 3. Detailed Implementation

[0049] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0050] Example 1:

[0051] A ball-pushing system for cleaning the inner wall of a pipe, comprising:

[0052] The ball-pushing storage trough 3 is located at the starting end of the ball-pushing system and is used to store cleaning balls. The ball-pushing storage trough 3 has an open design, which makes it convenient for employees to pick up and put in the cleaning balls.

[0053] Air inlet valve 2 is located on the rear side of the ball storage tank 3. It is used to provide positive pressure to push the cleaning balls along the main conveying pipeline and push the residual slurry to the transfer tank.

[0054] A pneumatic ball valve 4 is located on the front side of the ball-pushing storage tank 3 and is linked with the air inlet valve 2 to adjust the initial pressure of the ball pusher. A pressure relief valve 5 is located on the front side of the pneumatic ball valve 4 to adjust the system pressure during operation and prevent overpressure. A backup valve 6 is located on the front side of the pressure relief valve 5 to be activated in case of failure of the main control valve, ensuring system reliability.

[0055] Pressure sensor 7 is located in front of pneumatic ball valve 4 and is connected to the control system signal to monitor the system pressure. When an abnormal pressure is detected in the main delivery pipeline, it automatically triggers the pressure relief valve 5 to open or adjusts the opening of pneumatic ball valve 4 to achieve dynamic pressure balance.

[0056] Pneumatic ball valve 28 is located in front of pressure sensor 7 and is used to cut off reverse conveying of slurry during slurry feeding.

[0057] Pneumatic ball valve 39 is located in front of pneumatic ball valve 28 and is used to isolate the slurry conveying channel, ensure solvent circulation, and facilitate the cleaning of the main conveying pipeline.

[0058] Three-way ball valve 10 is located between pneumatic ball valve 2 8 and pneumatic ball valve 3 9, and is installed on the slurry feeding pipeline. It is used to cut off the slurry during solvent circulation and to cut off the solvent during slurry feeding.

[0059] The three-way ball valve 10 is equipped with a slurry inlet and a solvent circulation outlet. The valve core rotation enables the switching of three working states: slurry conveying mode (three-way ball valve 10 - pneumatic ball valve 3 9), solvent cleaning mode (pneumatic ball valve 2 8 - three-way ball valve 10 - diaphragm pump 11), and ball pushing cleaning mode (pneumatic ball valve 2 8 - pneumatic ball valve 3 9).

[0060] A diaphragm pump 11 is connected between a three-way ball valve 10 and a solvent storage tank 12, and is used to draw solvent from the solvent storage tank 12 and start solvent circulation; a filter 13 is provided on the rear side of the diaphragm pump 11 to filter dry material and impurities generated during solvent circulation, so as to ensure the cleanliness of the solvent.

[0061] Solvent storage tank 12 is located between diaphragm pump 11 and the starting end of main delivery pipeline for storing solvent;

[0062] Discharge valve 1, located on the front side of solvent storage tank 12, is used to precisely control the discharge speed and flow rate of cleaning balls, ensuring efficient closed-loop operation of the pipeline cleaning process.

[0063] Example 2:

[0064] The difference between Example 2 and Example 1 is as follows:

[0065] The ball-pushing system also includes a multi-stage drainage mechanism for long-distance pipeline cleaning. A drainage mechanism is installed every 30 meters along the main conveying pipeline to remove slurry from the pipeline in stages, preventing blockages caused by excessive resistance due to the pipeline's length. Each drainage mechanism includes...

[0066] Pneumatic ball valve 414 is located in front of pneumatic ball valve 39 and is connected to the main conveying pipeline. It is used to isolate the slurry conveying channel and realize segmented discharge.

[0067] Pressure gauge 15 is installed on the front side of pneumatic ball valve 14 to monitor the pressure of the sewage discharge section pipeline in real time.

[0068] Pressure relief valve 2 16 is located in front of pressure gauge 15 and is connected to the control system signal to regulate the pressure of the sewage discharge section pipeline;

[0069] The second air intake valve 17 is located in front of the second pressure relief valve 16 and is used to provide positive pressure gas to push the cleaning ball into the next section of the main conveying pipeline for cleaning operation after the cleaning ball reaches the position sensor 18.

[0070] Position sensor 18 is located in front of air inlet valve 2 17 and is connected to the control system signal. It adopts a non-contact detection principle and uses magnetic field or ultrasonic wave to sense the position of the cleaning ball and dynamically adjust the opening of air inlet valve 2 17 and the switching sequence of pneumatic ball valve 5 19.

[0071] Pneumatic ball valve 519 is located in front of position sensor 18 and is connected to the main conveying pipeline. It is used to isolate the slurry conveying channel and realize segmented discharge.

[0072] The pneumatic ball valve 620 is located between the air inlet valve 217 and the pressure relief valve 216, and serves as a terminal discharge valve to discharge slurry and impurities.

[0073] Example 3:

[0074] The difference between Example 3 and Example 2 is as follows:

[0075] The ball pushing system also includes a ball collecting mechanism, which utilizes intelligent valve control, pressure regulation, and precise sensing technology for the efficient recovery and safe discharge of cleaning balls, significantly improving the stability and reliability of long-distance pipeline cleaning operations. The ball collecting mechanism includes...

[0076] Pneumatic ball valve 927, located in front of pneumatic ball valve 519, is the main control valve of the ball receiving mechanism. It is kept open during the cleaning operation to ensure smooth discharge of slurry.

[0077] Pressure relief valve 326 is located in front of pneumatic ball valve 927 and forms a pressure linkage with air inlet valve 325. It automatically opens when the air supply pressure increases to maintain pressure balance.

[0078] The intake valve 25 is located in front of the pressure relief valve 26 and is used to dynamically adjust the air supply according to the signal of the position sensor 24 to provide positive pressure for the movement of the cleaning ball.

[0079] Pneumatic ball valve 28 is located in front of air inlet valve 25 and is used to discharge slurry and impurities.

[0080] Position sensor 24 is located on the front side of pneumatic ball valve 10 28 and is connected to the control system signal. It adopts a non-contact detection principle and uses magnetic field or ultrasonic wave to sense the position of the cleaning ball and dynamically adjust the opening of air inlet valve 3 25.

[0081] Pneumatic ball valve 823 is located in front of position sensor 24 and operates synchronously with pneumatic ball valve 722 to enhance system reliability;

[0082] Pneumatic ball valve 722 is located in front of pneumatic ball valve 823 and is linked with pneumatic ball valve 823 to control the opening and closing of the ball receiving channel, ensuring that the cleaning ball accurately enters the designated section.

[0083] Blind flange 21 is detachably installed at the end of the main delivery pipeline for system isolation, equipment maintenance, or pipeline closure in emergency situations.

[0084] During the ball pushing operation, the cleaning ball is placed in the ball pushing storage tank 3. The pneumatic ball valve 4 is opened, and the air inlet valve 2 provides positive pressure to push the cleaning ball. After the pressure sensor 7 senses the cleaning ball, the pneumatic ball valves 8 and 9 are both opened, the three-way ball valve 10 is closed, and then the pneumatic ball valve 4 is closed. The cleaning ball begins to clean the slurry under the positive pressure.

[0085] Then, pneumatic ball valve 414 and pneumatic ball valve 620 are opened, and pneumatic ball valve 519 is closed. The slurry is discharged from the DC pipeline through pneumatic ball valve 620. When the cleaning ball moves to position sensor 18, pneumatic ball valve 414 and pneumatic ball valve 620 are closed, and pneumatic ball valve 519 and air inlet valve 217 are opened. Positive pressure is applied to the air inlet, pushing the cleaning ball to carry out the next section of pipeline cleaning operation.

[0086] When the ball is collected, pneumatic ball valves 927 and 1028 are opened, while pneumatic ball valves 722 and 823 are closed. The slurry flows into the transfer tank through pneumatic ball valve 1028. When the cleaning ball moves to position sensor 24, pneumatic ball valves 722 and 823 are opened, pneumatic ball valves 927 and 1028 are closed, and air inlet valve 325 is opened. The air inlet provides positive pressure to push the cleaning ball, and discharges the remaining slurry from the drain pipe through pneumatic ball valve 722, while simultaneously releasing the pressure at the front of the ball pusher.

[0087] The diameter of the end of the ball receiving section of the pipe gradually increases, which facilitates the release of pressure by pushing the ball.

[0088] When the slurry is not being transported, the solvent circulation cleaning system is activated. Pneumatic ball valve 39 is closed, while pneumatic ball valve 14, pneumatic ball valve 28, and three-way ball valve 10 are opened. Diaphragm pump 11 is started, drawing solvent from solvent storage tank 12 to continuously flush the pipeline. The solvent then flows back into solvent storage tank 12 through the pipeline, and the cleaning is carried out through continuous solvent circulation.

[0089] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0090] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ball-pushing system for cleaning the inner wall of a pipe, characterized in that: include The ball-pushing storage trough (3) is located at the beginning of the ball-pushing system and is used to store cleaning balls; Air inlet valve 1 (2) is located on the rear side of the ball storage tank (3) to provide positive pressure to push the cleaning balls along the main conveying pipeline and push the residual slurry to the transfer tank; Pneumatic ball valve 1 (4) is located on the front side of the ball pusher storage tank (3) and is linked with air inlet valve 1 (2) to adjust the initial pressure of the ball pusher; Pressure sensor 1 (7) is located on the front side of pneumatic ball valve 1 (4) and is connected to the control system signal to monitor the system pressure; Pneumatic ball valve 2 (8) is located in front of pressure sensor 1 (7) and is used to cut off reverse conveying of slurry when slurry is being fed. Pneumatic ball valve three (9) is located in front of pneumatic ball valve two (8) and is used to cut off the slurry conveying channel to ensure the circulation of solvent; A three-way ball valve (10) is located between pneumatic ball valve two (8) and pneumatic ball valve three (9) and is installed on the slurry feeding pipeline. It is used to cut off the slurry during solvent circulation and to cut off the solvent during slurry feeding. A diaphragm pump (11) is connected between a three-way ball valve (10) and a solvent storage tank (12) for drawing solvent from the solvent storage tank (12) and starting solvent circulation; A solvent storage tank (12) is located between the diaphragm pump (11) and the starting end of the main delivery pipeline for storing solvent; The discharge valve (1) is located on the front side of the solvent storage tank (12) and is used to precisely control the discharge speed and flow rate of the cleaning balls.

2. The ball-pushing system for cleaning the inner wall of a pipe according to claim 1, characterized in that: The ball storage slot (3) is an open design.

3. The ball-pushing system for cleaning the inner wall of a pipe according to claim 1, characterized in that: The pneumatic ball valve (4) is equipped with a pressure relief valve (5) on its front side, which is used to adjust the system pressure during operation.

4. A ball-pushing system for cleaning the inner wall of a pipe according to claim 3, characterized in that: A backup valve (6) is provided on the front side of the pressure relief valve (5) for use in case of failure of the main control valve.

5. A ball-pushing system for cleaning the inner wall of a pipe according to claim 1, characterized in that: The diaphragm pump (11) is equipped with a filter (13) on its rear side for filtering dry materials and impurities generated during solvent circulation.

6. A ball-pushing system for cleaning the inner wall of a pipe according to claim 4 or 5, characterized in that: The ball-pushing system also includes a multi-stage sewage discharge mechanism for cleaning long-distance pipelines.

7. A ball-pushing system for cleaning the inner wall of a pipe according to claim 6, characterized in that: Each group of sewage discharge facilities includes Pneumatic ball valve four (14) is located in front of pneumatic ball valve three (9) and is connected to the main conveying pipeline. It is used to cut off the slurry conveying channel and realize segmented material discharge. Pressure gauge (15) is installed on the front side of pneumatic ball valve four (14) to monitor the pressure of the sewage discharge section pipeline in real time; Pressure relief valve 2 (16) is located in front of pressure gauge (15) and is connected to the control system signal to regulate the pressure of the sewage discharge section pipeline; Intake valve 2 (17) is located in front of pressure relief valve 2 (16) and is used to provide positive pressure gas; Position sensor 1 (18) is located in front of air inlet valve 2 (17) and is connected to the control system signal. It is used to sense the position of the cleaning ball and dynamically adjust the opening of air inlet valve 2 (17) and the switching sequence of pneumatic ball valve 5 (19). Pneumatic ball valve five (19) is located in front of position sensor one (18) and connected to the main conveying pipeline. It is used to cut off the slurry conveying channel and realize segmented material discharge. Pneumatic ball valve six (20) is located between air inlet valve two (17) and pressure relief valve two (16) and is used to discharge slurry and impurities.

8. A ball-pushing system for cleaning the inner wall of a pipe according to claim 7, characterized in that: The ball pushing system also includes a ball collection mechanism for the efficient recycling and safe discharge of the cleaning balls.

9. A ball-pushing system for cleaning the inner wall of a pipe according to claim 8, characterized in that: The ball-collecting mechanism includes Pneumatic ball valve nine (27) is located in front of pneumatic ball valve five (19) and is the main control valve of the ball receiving mechanism; Pressure relief valve three (26) is located in front of pneumatic ball valve nine (27) and forms a pressure linkage with air intake valve three (25) to maintain pressure balance; The intake valve three (25) is located in front of the pressure relief valve three (26) and is used to dynamically adjust the air supply according to the signal of the position sensor two (24) to provide positive pressure for the movement of the cleaning ball; Pneumatic ball valve 10 (28) is located in front of air inlet valve 3 (25) and is used to discharge slurry and impurities; Position sensor 2 (24) is located on the front side of pneumatic ball valve 10 (28) and is connected to the control system signal. It is used to sense the position of the cleaning ball and dynamically adjust the opening of air inlet valve 3 (25). Pneumatic ball valve eight (23) is located in front of position sensor two (24) and operates synchronously with pneumatic ball valve seven (22) to enhance system reliability; Pneumatic ball valve seven (22) is located in front of pneumatic ball valve eight (23) and is linked with pneumatic ball valve eight (23) to control the opening and closing of the ball receiving channel; Blind flange (21) is detachably installed at the end of the main delivery pipeline for system isolation, equipment maintenance or emergency closure of the pipeline.

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