Pressure pipeline automatic cleaning system and cleaning method

Abstract

The present invention discloses an automatic cleaning system and method for a pressure pipeline, the cleaning system comprising a pipeline cleaner, a first cleaning unit, a second cleaning unit and a controller. The pipeline cleaner comprises a first leather cup, a second leather cup and a connecting shaft, the first leather cup and the second leather cup are symmetrically sleeved on both ends of the connecting shaft; the first cleaning unit comprises a first connecting part, a first gas transmission part and a first gas storage device, the first gas storage device stores high-pressure gas inside, and the first gas storage device is used to push the pipeline cleaner to move forward in the pressure pipeline; the second cleaning unit comprises a second connecting part, a second gas transmission part and a second gas storage device, and the second gas storage device is used to push the pipeline cleaner to move reversely in the pressure pipeline. The present invention also provides an automatic cleaning method for a pressure pipeline, which realizes reciprocating automatic bidirectional cleaning of the pressure pipeline by driving the pipeline cleaner to scrape in both directions, thereby reducing the workload and improving the cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline cleaning, and in particular to an automatic pressure pipeline cleaning system and a cleaning method. Background Art

[0002] The media transported inside the pressure pipeline are generally high-temperature, high-pressure, flammable, explosive, toxic and harmful media. For pressure pipelines that transport liquid media with high viscosity or complex components for a long time, scaling is likely to occur on the inner wall of the pipeline after a period of operation. Scaling on the inner wall of the pipeline will reduce the efficiency of medium transportation, increase the flow resistance of the medium, and cause power waste; the dirt attached to the inner wall of the pressure pipeline is likely to cause under-scale corrosion, which will reduce the thickness of the pipeline wall. In severe cases, it is easy to induce corrosion perforation of the pipeline and induce safety accidents.

[0003] The existing pressure pipeline cleaning method requires manual opening of the pipeline system valve, turning on the pump at the end of the pressure pipeline, and using the pump to evacuate the liquid medium in the pressure pipeline; then opening the flange cover, placing the cleaner inside the pressure pipeline, and closing the flange cover; then opening the cleaning power gas valve, the cleaner moves along the pressure pipeline under the power gas, the cleaner fits tightly with the inner wall of the pressure pipeline, and the dirt in the pipeline is cleaned by scraping the inner wall of the pipeline during the movement, and the cleaner is recovered at the end of the pressure pipeline after the cleaning is completed. This pipeline cleaning method can only clean in one direction, and the cleaner needs to be manually disassembled and assembled each time, which has the problems of complex operation, large workload, and low degree of automation. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automatic pressure pipeline cleaning system and cleaning method, which realizes reciprocating automatic two-way cleaning of the pressure pipeline by scraping the inner wall of the pressure pipeline in both directions with a pipeline cleaner, thereby reducing the workload and improving the cleaning efficiency.

[0005] On the one hand, an embodiment of the present invention provides an automatic cleaning system for a pressure pipeline, including a pipeline cleaner, a first cleaning unit, a second cleaning unit and a controller. The pipeline cleaner includes a first leather cup, a second leather cup and a connecting shaft, and the first leather cup and the second leather cup are symmetrically sleeved on both ends of the connecting shaft; the first cleaning unit includes a first connecting part, a first gas transmission part and a first gas storage device, and the first two ends of the first connecting part are respectively provided with a first flange and a second flange, the first connecting part is connected to the first end of the pressure pipeline through the first flange, the second flange is connected to a first electric valve, the first end of the first gas transmission part is connected to the first connecting part through a first tee, the second end of the first gas transmission part is provided with a fourth flange, the fourth flange is connected to a fourth electric valve, the first gas storage device is provided with a third electric valve, the first gas storage device is connected to the first gas transmission part through a third tee, the first gas storage device stores high-pressure gas inside, and the first gas storage device is used to push the pipeline cleaner to move forward in the pressure pipeline; the second The cleaning unit includes a second connecting part, a second gas transmission part and a second gas storage device, the second connecting part is respectively provided with a fifth flange and a sixth flange, the second connecting part is connected to the second end of the pressure pipeline through the fifth flange, the sixth flange is connected to the fifth electric valve, the first end of the second gas transmission part is connected to the second connecting part through a fourth three-way connection, the second end of the second gas transmission part is provided with an eighth flange, the eighth flange is connected to the eighth electric valve, the second gas storage device is provided with a seventh electric valve, the second gas storage device is connected to the second gas transmission part through the sixth three-way connection, the second gas storage device stores high-pressure gas inside, and the second gas storage device is used to push the pipeline cleaner to move in the pressure pipeline in the reverse direction; the controller is respectively electrically connected to the first electric valve, the third electric valve, the fourth electric valve, the fifth electric valve, the seventh electric valve and the eighth electric valve.

[0006] The embodiments of the present invention have at least the following beneficial effects:

[0007] The automatic cleaning system for pressure pipes provided by the present invention comprises a pipe cleaner, a first cleaning unit, a second cleaning unit and a controller; the pipe cleaner comprises a first leather cup, a second leather cup and a connecting shaft, and the first leather cup and the second leather cup are symmetrically sleeved on both ends of the connecting shaft; the first cleaning unit comprises a first connecting part, a first gas transmission part and a first gas storage device, and the first gas storage device stores high-pressure gas inside, and the first gas storage device is used to push the pipe cleaner to move forward in the pressure pipe; the second cleaning unit comprises a second connecting part, a second gas transmission part and a second gas storage device, and the second gas storage device stores high-pressure gas inside, and the second gas storage device is used to push the pipe cleaner to move reversely in the pressure pipe. The first leather cup and the second leather cup are symmetrically structured, and the high-pressure gas stored inside the first gas storage device pushes the pipe cleaner to move forward in the pressure pipe, and the high-pressure gas stored inside the second gas storage device pushes the pipe cleaner to move reversely in the pressure pipe. By driving the pipe cleaner to scrape the inner wall of the pressure pipe in both directions, the reciprocating automatic two-way cleaning of the pressure pipe is realized, the labor and operation cost of the operation are reduced, the cleaning efficiency is improved, and the automation level of the pressure pipe maintenance is improved.

[0008] According to some embodiments of the present invention, the connecting shaft is installed with a bell device, and the bell device is used to generate a bell through mechanical vibration during the cleaning process to inform the current cleaning position.

[0009] According to some embodiments of the present invention, a first pull ring is disposed on the outer side of the first leather cup, and a second pull ring is disposed on the outer side of the second leather cup.

[0010] According to some embodiments of the present invention, the third tee is also connected to a first reducer, the first reducer is connected to a second tee, the second tee is connected to a third flange and a second electric valve, and the second electric valve is connected to the first tee and electrically connected to the controller.

[0011] According to some embodiments of the present invention, the sixth tee is also connected to a second reducer, the second reducer is connected to a fifth tee, the fifth tee is also connected to a seventh flange and a sixth electric valve, the sixth electric valve is connected to the fourth tee and is electrically connected to the controller.

[0012] According to some embodiments of the present invention, a first pump is installed between the fifth electric valve and the sixth flange, and the first pump is used to evacuate the medium in the pressure pipeline.

[0013] On the other hand, an embodiment of the present invention provides a pressure pipeline automatic cleaning method, comprising:

[0014] If the preset pipeline cleaning time is reached, the medium in the pressure pipeline is drained;

[0015] Get the location of the pipe cleaner;

[0016] If the pipeline cleaner is located in the first cleaning unit, a forward pipeline cleaning operation is performed;

[0017] If the pipeline cleaner is located in the second cleaning unit, a reverse pipeline cleaning operation is performed;

[0018] If the preset number of pipeline cleaning times is not reached, pipeline cleaning will continue.

[0019] According to some embodiments of the present invention, the step of evacuating the medium in the pressure pipe includes:

[0020] Close the first electric valve, the third electric valve, the fourth electric valve, the seventh electric valve and the eighth electric valve;

[0021] Open the fifth electric valve to discharge the medium in the pressure pipeline.

[0022] According to some embodiments of the present invention, the step of performing a forward pipeline cleaning operation includes:

[0023] After closing the first electric valve, the fourth electric valve, the fifth electric valve and the seventh electric valve, first open the eighth electric valve, then open the third electric valve, and the high-pressure gas in the first gas storage device enters the first gas transmission part through the third electric valve;

[0024] The pipeline cleaner enters the pressure pipeline through the first tee and the first flange under the push of high-pressure gas;

[0025] The pipe cleaner moves inside the pressure pipe and cleans it by scraping the inner wall of the pressure pipe with the second leather cup;

[0026] After cleaning, the pipe cleaner enters the fourth tee and then the fifth tee, where it is blocked by the second reducer and stays in the fifth tee;

[0027] The dirt in the cleaned pipe is discharged from the eighth flange through the second reducer, the sixth tee and the eighth electric valve.

[0028] According to some embodiments of the present invention, the step of performing a reverse pipeline cleaning operation includes:

[0029] After closing the first electric valve, the third electric valve, the fifth electric valve and the eighth electric valve, first open the fourth electric valve, then open the seventh electric valve, and the high-pressure gas in the second gas storage device enters the second gas transmission part through the seventh electric valve;

[0030] The pipeline cleaner enters the pressure pipeline through the fourth tee and the fifth flange under the push of high-pressure gas;

[0031] The pipe cleaner moves inside the pressure pipe and cleans it by scraping the inner wall of the pressure pipe with the first leather cup;

[0032] After cleaning, the pipe cleaner enters the first tee and then the second tee, where it is blocked by the first reducer and stays in the second tee;

[0033] The cleaned pipe dirt is discharged from the fourth flange through the first reducer, the third tee and the fourth electric valve.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 It is a structural schematic diagram of the automatic cleaning system for pressure pipes according to an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of the structure of a pipe cleaner of an automatic pressure pipe cleaning system according to an embodiment of the present invention;

[0038] Figure 3 for Figure 1 A schematic structural diagram of a first cleaning unit is shown;

[0039] Figure 4 for Figure 1 A schematic structural diagram of a second cleaning unit is shown;

[0040] Figure 5 A flow chart of a pressure pipe automatic cleaning method according to an embodiment of the present invention;

[0041] Figure 6 A flow chart of emptying the medium in a pressure pipeline in the automatic cleaning method of a pressure pipeline according to an embodiment of the present invention;

[0042] Figure 7 A flow chart of a forward cleaning pipeline of an automatic cleaning method for a pressure pipeline according to an embodiment of the present invention;

[0043] Figure 8 It is a schematic diagram of the automatic cleaning method for a pressure pipeline according to an embodiment of the present invention when cleaning the pipeline in the forward direction;

[0044] Fig. 9 A flow chart of a reverse cleaning pipeline of an automatic cleaning method for a pressure pipeline according to an embodiment of the present invention;

[0045] Fig.10 This is a schematic diagram of the reverse cleaning of the pressure pipeline in the automatic cleaning method of the pressure pipeline according to an embodiment of the present invention.

[0046] Reference numerals:

[0047] Pipe cleaner 100, first leather cup 110, first pull ring 111, second leather cup 120, second pull ring 121, connecting shaft 130;

[0048] The first cleaning unit 200, the first connecting part 210, the first flange 211, the second flange 212, the third flange 213, the fourth flange 214, the first gas transmission part 220, the first gas storage device 230, the first electric valve 241, the second electric valve 242, the third electric valve 243, the fourth electric valve 244, the first three-way valve 251, the second three-way valve 252, the third three-way valve 253, and the first reducer 261;

[0049] The second cleaning unit 300, the second connecting part 310, the fifth flange 315, the sixth flange 316, the seventh flange 317, the eighth flange 318, the second gas transmission part 320, the second gas storage device 330, the fifth electric valve 345, the sixth electric valve 346, the seventh electric valve 347, the eighth electric valve 348, the fourth three-way valve 354, the fifth three-way valve 355, the sixth three-way valve 356, the second reducer 362, and the first pump 371;

[0050] Pressure pipe 500, pipe dirt 600. DETAILED DESCRIPTION

[0051] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0054] In the description of the present invention, unless otherwise clearly defined, words such as “set”, “install”, “connect” and “connected” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention based on the specific content of the technical solution.

[0055] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments.

[0056] Please refer to Figures 1 to 4The present embodiment discloses an automatic cleaning system for a pressure pipe, including a pipe cleaner 100, a first cleaning unit 200, a second cleaning unit 300 and a controller. The pipe cleaner 100 includes a first leather cup 110, a second leather cup 120 and a connecting shaft 130. The first leather cup 110 and the second leather cup 120 are symmetrically sleeved at both ends of the connecting shaft 130; the first cleaning unit 200 includes a first connecting portion 210, a first gas transmission portion 220 and a first gas storage device 230. The first connecting portion 210 is respectively provided with a first flange 211 and a second flange 212 at both ends. The first connecting portion 210 is connected to the first end of the pressure pipe 500 through the first flange, and the second flange 212 is connected to the first electric valve 2 41, the first end of the first gas delivery part 220 is connected to the first connecting part 210 through the first three-way connection 251, the second end of the first gas delivery part 220 is provided with a fourth flange 214, the fourth flange 214 is connected to the fourth electric valve 244, the first gas storage device 230 is provided with a third electric valve 243, the first gas storage device 230 is connected to the first gas delivery part 220 through the third three-way connection 253, the first gas storage device 230 stores high-pressure gas inside, and the first gas storage device 230 is used to push the pipeline cleaner 100 to move forward in the pressure pipeline 500; The second cleaning unit 300 includes a second connecting portion 310, a second gas delivery portion 320 and a second gas storage device 330. The second connecting portion 310 is provided with a fifth flange 315 and a sixth flange 316 at both ends, the second connecting portion 310 is connected to the second end of the pressure pipe 500 through the fifth flange 315, the sixth flange 316 is connected to the fifth electric valve 345, the first end of the second gas delivery portion 320 is connected to the second connecting portion 310 through a fourth three-way connection 354, the second end of the second gas delivery portion 320 is provided with an eighth flange 318, and the eighth flange 316 is provided with a fifth electric valve 345. 18 is connected to the eighth electric valve 348, the second gas storage device 330 is provided with a seventh electric valve 347, the second gas storage device 330 is connected to the second gas transmission part 320 through the sixth three-way 356, and the second gas storage device 330 stores high-pressure gas inside. The second gas storage device 330 is used to push the pipeline cleaner 100 to move in the pressure pipeline 500 in the reverse direction; the controller is electrically connected to the first electric valve 241, the third electric valve 243, the fourth electric valve 244, the fifth electric valve 345, the seventh electric valve 347 and the eighth electric valve 348 respectively. The first leather cup 110 and the second leather cup 120 are symmetrical structures. The high-pressure gas stored in the first gas storage device 230 pushes the pipeline cleaner 100 to move forward in the pressure pipeline 500, and the high-pressure gas stored in the second gas storage device 330 pushes the pipeline cleaner 100 to move in the pressure pipeline 500 in the reverse direction. By driving the pipeline cleaner 100 to scrape the inner wall of the pressure pipeline 500 in two directions, automatic reciprocating two-way cleaning of the pressure pipeline is achieved, thereby reducing the workload and improving the cleaning efficiency.

[0057] Please refer to Figure 2The connecting shaft 130 is equipped with a bell device 140, which is used to generate a bell through mechanical vibration during the cleaning process to inform the current cleaning position. The operator standing next to the pressure pipe 500 knows the current cleaning position through the bell. The bell device 140 can also be equipped with a positioning sensor to obtain the pipeline position of the pipeline cleaner 100 in real time.

[0058] Please refer to Figure 2 A first pull ring 111 is disposed on the outer side of the first leather cup 110, and a second pull ring 121 is disposed on the outer side of the second leather cup 120, so as to facilitate taking out the pipe cleaner 100 from the first cleaning unit 200 or the second cleaning unit 300. It should be noted that the first leather cup 110 and the second leather cup 120 are both made of easily deformable materials, such as soft rubber, which are easily deformed by air pressure to scrape the inner wall of the pressure pipe 500.

[0059] Please refer to Figure 3 The third three-way pipe is also connected to the first reducer 261, the first reducer 261 is connected to the second three-way pipe 252, the second three-way pipe 252 is connected to the third flange 213 and the second electric valve 242, and the second electric valve 242 is connected to the first three-way pipe 251 and is electrically connected to the controller. Among them, the third flange 213 is a blind hole flange for easy sealing. After cleaning, the first reducer 261 blocks the pipeline cleaner 100 so that the pipeline cleaner 100 stays in the second three-way pipe 252.

[0060] Please refer to Figure 4 The sixth three-way pipe 356 is also connected to the second reducer 362, the second reducer 362 is connected to the fifth three-way pipe 355, the fifth three-way pipe 355 is also connected to the seventh flange 317 and the sixth electric valve 346, the sixth electric valve 346 is connected to the fourth three-way pipe 354 and is electrically connected to the controller. Among them, the seventh flange 317 is a blind hole flange for easy sealing. After cleaning, the second reducer 362 blocks the pipeline cleaner 100 so that the pipeline cleaner 100 stays in the fifth three-way pipe 355.

[0061] Please refer to Figure 4 A first pump 371 is installed between the fifth electric valve 345 and the sixth flange 316, and the first pump 371 is used to empty the medium in the pressure pipe 500. Before cleaning the pipe, the fifth electric valve 345 is opened, and the medium in the pressure pipe 500 is pumped out by the first pump 371.

[0062] See also Figure 5 This embodiment also provides a method for testing using the above-mentioned pressure pipeline automatic cleaning system, which mainly includes steps S101 to S105:

[0063] S101, if the preset pipeline cleaning time is reached, the medium in the pressure pipeline is emptied;

[0064] S102, obtaining the location of the pipeline cleaner 100;

[0065] S103, if the pipeline cleaner 100 is located in the first cleaning unit 200, a forward pipeline cleaning operation is performed;

[0066] S104, if the pipeline cleaner 100 is located in the second cleaning unit 300, perform a reverse pipeline cleaning operation;

[0067] S105: If the preset number of pipeline cleaning times has not been reached, continue pipeline cleaning.

[0068] See also Figure 6 The above step S101 of emptying the medium in the pressure pipe includes the following detailed steps:

[0069] S201 , closing the first electric valve 241 , the third electric valve 243 , the fourth electric valve 244 , the seventh electric valve 347 and the eighth electric valve 348 ;

[0070] S202 , opening the fifth electric valve 345 to discharge the medium in the pressure pipe 500 .

[0071] See also Figure 7 and Figure 8 The forward cleaning pipeline operation in the above step S103 includes the following detailed steps:

[0072] S301, after closing the first electric valve 241, the fourth electric valve 244, the fifth electric valve 345 and the seventh electric valve 347, first open the eighth electric valve 348, then open the third electric valve 243, and the high-pressure gas in the first gas storage device 230 enters the first gas transmission part 220 through the third electric valve 243;

[0073] S302, the pipeline cleaner 100 enters the pressure pipeline 500 through the first tee 251 and the first flange 211 under the push of high-pressure gas;

[0074] S303, the pipeline cleaner 100 moves inside the pressure pipeline 500, and cleans the pressure pipeline 500 by scraping the inner wall of the pressure pipeline 500 with the second leather cup 120;

[0075] S304, after cleaning, the pipeline cleaner 100 enters the fourth tee 354 and the fifth tee 355, is blocked by the second reducer 362, and stays in the fifth tee 355;

[0076] S305 , the cleaned pipe dirt 600 is discharged from the eighth flange 318 through the second reducer 362 , the sixth three-way valve 356 and the eighth electric valve 348 .

[0077] See also Fig. 9and Fig.10 The reverse cleaning pipeline operation in the above step S104 includes the following detailed steps:

[0078] S401, after closing the first electric valve 241, the third electric valve 243, the fifth electric valve 345 and the eighth electric valve 348, first open the fourth electric valve 244, then open the seventh electric valve 347, and the high-pressure gas in the second gas storage device 330 enters the second gas transmission part 320 through the seventh electric valve 347;

[0079] S402, the pipeline cleaner 100 enters the pressure pipeline 500 through the fourth three-way 354 and the fifth flange 315 under the push of high-pressure gas;

[0080] S403, the pipeline cleaner 100 moves inside the pressure pipeline 500, and cleans the pressure pipeline 500 by scraping the inner wall of the pressure pipeline 500 with the first leather cup 110;

[0081] S404 , after cleaning, the pipeline cleaner 100 enters the first tee 251 and then the second tee 252 , is blocked by the first reducer 261 , and stays in the second tee 252 .

[0082] S405 , the cleaned pipe dirt 600 is discharged from the fourth flange 214 through the first reducer 261 , the third three-way valve 253 and the fourth electric valve 244 .

[0083] The controller is used to automatically control the opening and closing of the first electric valve 241, the second electric valve 242, the third electric valve 243, the fourth electric valve 244 of the first cleaning unit 200 and the fifth electric valve 345, the sixth electric valve 346, the seventh electric valve 347, the eighth electric valve 348 and the first pump 371 of the second cleaning unit 300 according to a preset control program. The controller is a programmable logic controller, an industrial computer or a single-chip microcomputer, etc. The cleaning instruction parameters are set to the controller by touching the display screen or pressing buttons, so as to control how long the cleaning system performs the automatic cleaning operation every time and how many cleaning processes are performed each time. For example, the cleaning system is set to perform a pipeline cleaning task every 10 days, and each task performs 5 cleaning processes. The pipeline cleaner 100 cleans from the first cleaning unit 200 to the second cleaning unit 300, that is, the forward cleaning direction is consistent with the medium flow direction in the pressure pipeline; then cleans from the second cleaning unit 300 to the first cleaning unit 200, that is, the reverse cleaning direction is opposite to the medium flow direction in the pressure pipeline; this is repeated for two cycles, and then the fifth cleaning process is performed, that is, cleaning is performed again from the first cleaning unit 200 to the second cleaning unit 300. By regularly driving the pipeline cleaner 100 to scrape the inner wall of the pressure pipeline 500 in both directions, the pressure pipeline 500 is regularly cleaned in a reciprocating automatic two-way manner, which reduces the workload and operating costs, improves the cleaning efficiency, and improves the automation level of pressure pipeline maintenance.

[0084] Before use, the first cleaning unit 200 is installed at the first end of the pressure pipe 500 through the first flange 211, and the second cleaning unit 300 is installed at the second end of the pressure pipe 500 through the fifth flange 315, so as to install the automatic cleaning system for the pressure pipe. The pressure pipe 500 is between the first flange 211 and the fifth flange 315. When the first electric valve 241 and the fifth electric valve 345 are opened, and the other electric valves are closed, the medium flow direction in the pressure pipe 500 is not changed after the first cleaning unit 200 and the second cleaning unit 300 are installed. Then open the third flange 213, put the pipe cleaner 100 into the second tee 252, and close the third flange 213. After cleaning the pressure pipe 500, there is no need to disassemble the automatic cleaning system for the pressure pipe, and it can be used directly for the next cleaning.

[0085] When the pressure pipeline 500 is in normal operation, the first electric valve 241 and the fifth electric valve 345 are in an open state, the first pump 371 is in an open state, and the second electric valve 242, the third electric valve 243, the fourth electric valve 244, the sixth electric valve 346, the seventh electric valve 347 and the eighth electric valve 348 are in a closed state. At this time, the medium flows into the first cleaning unit 200 from the second flange 212, flows through the first electric valve 241, the first three-way valve 251, and the first flange 211, flows into the pressure pipeline 500, and then flows into the second cleaning unit 300 from the other end of the pipeline through the fifth flange 315, flows through the fourth three-way valve 354, the fifth electric valve 345, the first pump 371, and flows out through the sixth flange 316.

[0086] It should be noted that after cleaning the pressure pipe 500, it is not necessary to take out the pipe cleaner 100. If there is a lot of dirt on the surface of the pipe cleaner 100, take it out to clean the surface dirt. If the pipe cleaner 100 is in the second three-way pipe 252 of the first cleaning unit 200, close the second electric valve 242 and the third electric valve 243, open the fourth electric valve 244, and wait until the ambient air pressure of the two-way pipe cleaner 100 is balanced with the external air pressure, then open the third flange 213 and take the pipe cleaner 100 out of the second three-way pipe 252 for cleaning. You can also use a cleaning tool to pass through the through hole of the fourth flange 214 to clean out the dirt in the third three-way pipe 253 and the first reducer 261. If the pipe cleaner 100 is in the fifth three-way connection 355 of the second cleaning unit 300, the sixth electric valve 346 and the seventh electric valve 347 are closed, the eighth electric valve 348 is opened, and when the air pressure of the environment where the two-way pipe cleaner 100 is located is balanced with the external air pressure, the seventh flange 317 is opened, and the pipe cleaner 100 is taken out of the fifth three-way connection 355 for cleaning. A cleaning tool can also be used to pass through the through hole of the eighth flange 318 to clean out the dirt in the sixth three-way connection 356 and the second reducer 362.

[0087] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pressure pipeline automatic cleaning method, based on a pressure pipeline automatic cleaning system, characterized in that: The system includes: A pipe cleaner (100), the pipe cleaner (100) comprising a first leather cup (110), a second leather cup (120) and a connecting shaft (130), the first leather cup (110) and the second leather cup (120) being symmetrically sleeved on both ends of the connecting shaft (130); A first cleaning unit (200), the first cleaning unit (200) comprising a first connecting portion (210), a first gas transmission portion (220) and a first gas storage device (230), the first connecting portion (210) being provided with a first flange (211) and a second flange (212) at both ends thereof, the first connecting portion (210) being connected to a first end of a pressure pipeline (500) via the first flange, the second flange (212) being connected to a first electric valve (241), the first end of the first gas transmission portion (220) being connected to the first connecting portion (500) via a first tee (251), The first gas supply unit (210) is connected to the first gas supply unit (210), a fourth flange (214) is provided at the second end of the first gas supply unit (220), a fourth electric valve (244) is connected to the fourth flange (214), the first gas storage device (230) is provided with a third electric valve (243), the first gas storage device (230) is connected to the first gas supply unit (220) via a third three-way connection (253), high-pressure gas is stored inside the first gas storage device (230), and the first gas storage device (230) is used to push the pipeline cleaner (100) to move forward in the pressure pipeline (500); The second cleaning unit (300) comprises a second connecting portion (310), a second gas transmission portion (320) and a second gas storage device (330), wherein the second connecting portion (310) is provided with a fifth flange (315) and a sixth flange (316) at both ends thereof, the second connecting portion (310) is connected to the second end of the pressure pipeline (500) via the fifth flange (315), the sixth flange (316) is connected to a fifth electric valve (345), and the first end of the second gas transmission portion (320) is connected to the second gas transmission portion (500) via a fourth three-way connection (354). The second gas supply unit (320) is connected to a connecting portion (310), a second end of the second gas supply unit (320) is provided with an eighth flange (318), the eighth flange (318) is connected to an eighth electric valve (348), the second gas storage device (330) is provided with a seventh electric valve (347), the second gas storage device (330) is connected to the second gas supply unit (320) via a sixth three-way connection (356), high-pressure gas is stored inside the second gas storage device (330), and the second gas storage device (330) is used to push the pipeline cleaner (100) to move in the reverse direction in the pressure pipeline (500); a controller, the controller being electrically connected to the first electric valve (241), the third electric valve (243), the fourth electric valve (244), the fifth electric valve (345), the seventh electric valve (347), and the eighth electric valve (348), respectively; The method includes: If the preset pipeline cleaning time is reached, the medium in the pressure pipeline is drained; Get the location of the pipe cleaner (100); If the pipeline cleaner (100) is located in the first cleaning unit (200), a forward pipeline cleaning operation is performed; If the pipeline cleaner (100) is located in the second cleaning unit (300), a reverse pipeline cleaning operation is performed; If the preset number of pipeline cleaning times is not reached, pipeline cleaning will continue; Wherein, the step of emptying the medium in the pressure pipe includes: Closing the first electric valve (241), the third electric valve (243), the fourth electric valve (244), the seventh electric valve (347) and the eighth electric valve (348); The fifth electric valve (345) is opened to discharge the medium in the pressure pipe (500).

2. The automatic cleaning method for pressure pipes according to claim 1, characterized in that: The connecting shaft (130) is equipped with a bell device (140), and the bell device (140) is used to generate a bell through mechanical vibration during the cleaning process to notify the current cleaning position.

3. The automatic cleaning method for pressure pipes according to claim 1, characterized in that: A first pull ring (111) is arranged on the outer side of the first leather cup (110), and a second pull ring (121) is arranged on the outer side of the second leather cup (120).

4. The automatic cleaning method for pressure pipes according to claim 1, characterized in that: The third three-way connection is also connected to a first reducer (261), the first reducer (261) is connected to a second three-way connection (252), the second three-way connection (252) is connected to a third flange (213) and a second electric valve (242), and the second electric valve (242) is connected to the first three-way connection (251) and is electrically connected to the controller.

5. The automatic cleaning method for pressure pipes according to claim 4, characterized in that: The sixth three-way connection (356) is also connected to a second reducer (362), the second reducer (362) is connected to a fifth three-way connection (355), the fifth three-way connection (355) is also connected to a seventh flange (317) and a sixth electric valve (346), and the sixth electric valve (346) is connected to the fourth three-way connection (354) and is electrically connected to the controller.

6. The automatic cleaning method for pressure pipes according to claim 1, characterized in that: A first pump (371) is installed between the fifth electric valve (345) and the sixth flange (316), and the first pump (371) is used to discharge the medium in the pressure pipeline.

7. The automatic cleaning method for pressure pipes according to claim 5, characterized in that: The steps of performing the forward cleaning pipeline operation include: After closing the first electric valve (241), the fourth electric valve (244), the fifth electric valve (345) and the seventh electric valve (347), first opening the eighth electric valve (348) and then opening the third electric valve (243), so that the high-pressure gas in the first gas storage device (230) enters the first gas transmission part (220) through the third electric valve (243); The pipeline cleaner (100) is driven by high-pressure gas and enters the pressure pipeline (500) through the first tee (251) and the first flange (211); The pipeline cleaner (100) moves inside the pressure pipeline (500) and cleans the pressure pipeline (500) by scraping the inner wall of the pressure pipeline (500) with the second leather cup (120); After cleaning, the pipeline cleaner (100) enters the fourth tee (354) and the fifth tee (355), is blocked by the second reducer (362), and stays in the fifth tee (355); The cleaned pipe dirt is discharged from the eighth flange (318) through the second reducer (362), the sixth three-way (356) and the eighth electric valve (348).

8. The automatic cleaning method for pressure pipes according to claim 5, characterized in that: The steps of performing reverse pipeline cleaning operations include: After closing the first electric valve (241), the third electric valve (243), the fifth electric valve (345) and the eighth electric valve (348), first opening the fourth electric valve (244) and then opening the seventh electric valve (347), so that the high-pressure gas in the second gas storage device (330) enters the second gas transmission part (320) through the seventh electric valve (347); The pipeline cleaner (100) is driven by the high-pressure gas to enter the pressure pipeline (500) through the fourth tee (354) and the fifth flange (315); The pipeline cleaner (100) moves inside the pressure pipeline (500) and cleans the pressure pipeline (500) by scraping the inner wall of the pressure pipeline (500) with the first leather cup (110); After cleaning, the pipeline cleaner (100) enters the first tee (251) and then the second tee (252), is blocked by the first reducer (261), and stays in the second tee (252); The cleaned pipe dirt is discharged from the fourth flange (214) through the first reducer (261), the third tee (253) and the fourth electric valve (244).

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