Jet pig with rotating brushes

Abstract

The present invention provides a jet pipe cleaner with a rotating steel brush, comprising: a pipe body, front and rear sealing leather cups, front and rear supporting plates, front and rear clamping flanges, a steel brush disc, a rotating impeller and a propulsion plate; the front and rear sealing leather cups are respectively sleeved on the front and rear outer peripheral surfaces of the pipe body; the front and rear supporting plates are respectively covered on the front and rear ports of the pipe body; the front and rear clamping flanges are sleeved on the pipe body and cooperate with the front and rear supporting plates to fix the front and rear sealing leather cups in the middle; the middle part of the front supporting plate is provided with a circular through hole; the rear supporting plate is provided with a plurality of through holes, and the middle part is provided with a fixed shaft passing through the outer side of the circular through hole, and a bearing is installed on the fixed shaft; the rotating impeller is provided with an air inlet and a plurality of arc-shaped air passages, and the steel brush disc is fixed on the side surface of the rotating impeller; the rotating impeller and the steel brush disc are fixed on the bearing by aligning the air inlet with the circular through hole; the end of the fixed shaft passes through the steel brush disc and is combined with the propulsion plate, so that the jet pipe cleaner has the dual functions of strong cleaning of the pipe wall and jet.

Description

Technical Field

[0001] The invention relates to a pipe cleaner for cleaning sediments in a natural gas pipeline, in particular to a jet pipe cleaner with a rotating steel brush. Background Art

[0002] Natural gas gathering and transmission pipelines or long-distance transmission pipelines will inevitably experience physical or chemical reactions during the natural gas transportation process due to the different transportation process options and gas quality treatment levels, resulting in the generation of deposits such as condensate, oil, chemical residues, dust, etc. in the pipelines, which will cause the pipe wall to corrode and form iron sulfide and iron oxide, further increasing the deposits in the pipeline, resulting in reduced pipeline transportation efficiency, increased energy consumption, and risks to the safe operation of the pipeline.

[0003] Regular cleaning of natural gas transmission pipelines is an important part of the daily production activities of pipeline companies, and it is also a part with great safety risks. In the case of large undulations in the pipeline terrain, large amounts of sediment in the pipeline, and complex sedimentation forms, the pipe cleaner is often damaged or blocked. When the pipe cleaner is damaged or blocked, it can only be replaced or unblocked by cutting the pipe, which causes great operating costs and great hidden dangers for pipeline repair. In addition, in the comprehensive implementation of pipeline integrity management, internal inspection and evaluation of pipelines is a key link. Internal inspection activities have relatively strict requirements on the pipeline environment. Before the internal inspection activities, it is necessary to perform multiple rounds of combined cleaning operations of multiple types of pipe cleaners on the pipeline to improve the cleanliness of the pipeline and meet the requirements of internal inspection of the pipeline. In general, pipe cleaning operation is a periodic and necessary operation in the process of oil and gas pipeline transportation. The easy-to-wear characteristics of pipe cleaners make the cost of pipe cleaning operation high, and there are great safety risks in the implementation of pipe cleaning.

[0004] At present, the front and rear ends of traditional pipe cleaners are sealed, and the pressure difference formed by the conveying medium before and after the pipe cleaner is mainly used to push the pipe cleaner to move in the pipeline, so as to clean the front end of the pipe cleaner and the sediment on the pipe wall. According to the different sealing forms with the pipeline, traditional pipe cleaners can be divided into spherical pipe cleaners, leather bowl-shaped pipe cleaners, straight plate-shaped pipe cleaners, etc. The structure of traditional pipe cleaners is simple and easy to process, but there are also major problems in the application process. The front and rear of the pipe cleaning process are sealed, and the change of the pressure difference before and after the pipe cleaner makes it difficult to control its running speed, resulting in increased friction with the pipeline, and it is difficult to ensure the cleaning effect; it is very easy to cause sediment accumulation, which is easy to block the pipeline and lead to pipe cleaning failure; due to the limited cleaning effect of a single pipe cleaner, it is usually necessary to combine multiple pipe cleaners for pipeline cleaning operations. This operation process is cumbersome, the cleaning cost is high and the efficiency is low. In view of the limitations of traditional types of pipe cleaners, jet pipe cleaners have attracted the attention of some scholars and institutions at home and abroad. The jet-type pipe cleaner runs a jet channel through the pipe cleaner, and relies on the driving pressure of the conveying medium at the rear end of the pipe cleaner to form a high-speed jet to efficiently clean the sediment on the pipeline wall and change the flow pattern of the sediment at the front end of the pipe cleaner to prevent the sediment from accumulating at the front end of the pipe cleaner. The jet-type pipe cleaner is mainly developed for the cleaning of natural gas liquid accumulation pipelines, especially for liquid accumulation pipelines with large drop heights. However, the jet-type pipe cleaner is not suitable for cleaning pipelines with solid sediments and dense wall attachments formed by corrosion as the main sediments.

[0005] Therefore, how to design a pipe cleaner that has both powerful pipe wall cleaning and jetting functions and is suitable for cleaning operations of pipe wall deposits with various attachment forms has become one of the important issues to be solved in this field. Summary of the invention

[0006] The technical problem to be solved by the present technical solution is how to provide a pipe cleaner with the dual functions of powerful pipe wall cleaning and jetting, so as to meet the needs of cleaning operations of pipe wall deposits with various attachment forms.

[0007] In order to solve the above technical problems, the present technical scheme provides a jet pipe cleaner with a rotating steel brush, which comprises: a pipe body, at least one front sealing leather cup, at least one rear sealing leather cup, a front support plate, a rear support plate, a front clamping flange, a rear clamping flange, a steel brush disk, a rotating impeller and a propulsion plate; wherein, the at least one front sealing leather cup and the at least one rear sealing leather cup are respectively sleeved on the front outer circumferential surface and the rear outer circumferential surface of the pipe body; the front support plate and the rear support plate are respectively covered on the front port and the rear port of the pipe body, and the relative annular surfaces of the front support plate and the rear support plate are respectively abutted against the front end of the at least one front sealing leather cup and the rear end of the at least one rear sealing leather cup; the front clamping flange and the rear clamping flange are sleeved on the pipe body and respectively abut against the rear end of the at least one front sealing leather cup and the front end of the at least one rear sealing leather cup, so that the at least one front sealing leather cup and the at least one rear sealing leather cup are respectively clamped and fixed between the front support plate and the front clamping flange and between the rear support plate and the rear clamping flange; A circular through hole communicating with the inside of the tube body is opened in the middle of the front support plate; a plurality of through holes communicating with the inside of the tube body are opened in the rear support plate, and a fixed shaft is formed in the middle of the rear support plate along the axis of the tube body toward the front support plate, the fixed shaft passes through the circular through hole, and a bearing is installed on the fixed shaft outside the circular through hole; a through hole is opened in the middle of the rotating impeller, a circular air inlet is opened on one side of the rotating impeller, and the interior of the rotating impeller has a plurality of arcs connected with the air inlet and distributed radially. Air channel, the end of the arc-shaped air channel away from the center of the rotating impeller has an air outlet communicated with the outside world; the middle part of the steel brush disc also has a perforation, the steel brush disc is fixedly installed on the side of the rotating impeller without an air inlet, and the perforation of the steel brush disc is aligned with the perforation of the rotating impeller; the perforation of the rotating impeller and the perforation of the steel brush disc are coaxially opposite to the circular through hole, and the perforation of the rotating impeller and the perforation of the steel brush disc are jointly sleeved and fixed on the bearing; the end of the fixed shaft passes through the perforation of the rotating impeller and the perforation of the steel brush disc and is fixedly combined with the middle part of the side of the propulsion plate. Accordingly, when the jet pipe cleaner with a rotating steel brush of the technical solution travels in the pipeline, the conveying medium will enter the several arc-shaped air channels inside the rotating impeller from the through holes on the rear support plate through the inside of the pipe body, the circular through holes of the front support plate and the air inlet, and the rotating impeller is rotated under the action of the reaction force of the arc-shaped air channel on the conveying medium, thereby driving the steel brush disc to rotate, so that the steel brush disc can effectively and efficiently clean the deposits on the pipe wall. At the same time, the air outlet on the rotating impeller can form a jet of the conveying medium to promptly blow the pipe wall deposits cleaned by the steel brush disc forward, and promote the fluidization of the deposits in front of the jet pipe cleaner, thereby reducing the load of the propulsion plate pushing the deposits and the resistance of the jet pipe cleaner, and reducing the risk of the jet pipe cleaner getting stuck. In addition, the connection structure of the rear support plate, fixed shaft and propulsion plate in the jet pipe cleaner can ensure that the main force-bearing surfaces of the jet pipe cleaner during the pipeline propulsion process are all rigid fixed structures, and the steel brush disc is set on the fixed shaft through a bearing, which can also ensure its rotation stability and reduce the failure damage rate of the jet pipe cleaner.The jet pipe cleaner of this technical solution has the dual functions of strong pipe wall cleaning and jet, and is suitable for the removal of various attached forms of pipe wall deposits. It is used in daily pipe cleaning and pipeline inspection operations in natural gas gathering and long-distance pipelines, which will further improve the pipe cleaning efficiency and reduce operating costs.

[0008] As another implementation of the present technical solution, the air inlet is circular and is opened in the middle of one side of the rotating impeller and does not penetrate the other side of the rotating impeller. The through hole of the rotating impeller is coaxial with the air inlet and opened on the other side of the rotating impeller. The diameter of the air inlet is larger than the diameter of the through hole of the rotating impeller. The through hole of the rotating impeller extends toward the air inlet at the edge of the hole to form a tubular through hole portion, and the through hole portion is sleeved and fixed on the bearing. In this way, the air inlet can introduce the conveying medium into the interior of the rotating impeller, so that the rotating impeller rotates under the reaction force of the arc airway on the conveying medium. Moreover, by sleeve-fixing the through hole portion on the bearing, the stability of the combination of the rotating impeller and the bearing can be improved, thereby ensuring the stable rotation of the rotating impeller.

[0009] As another implementation of the technical solution, the curvature of the plurality of arc-shaped air passages is the same, and the plurality of arc-shaped air passages are evenly arranged in a clockwise or counterclockwise direction inside the rotating impeller, and a plurality of the air outlet holes are opened on the periphery of the rotating impeller. The plurality of arc-shaped air passages with the same curvature and even distribution can ensure the uniformity of the reaction force on the conveying medium, thereby further ensuring the rotation stability of the rotating impeller.

[0010] As another implementation of the technical solution, the cross-sectional area of ​​the arc-shaped air passage is gradually reduced from the air inlet to the air outlet, so that not only can the arc-shaped air passage generate a larger reaction force on the conveying medium, but also the jet of the conveying medium ejected from the air outlet has a larger force.

[0011] As another implementation of the technical solution, the area of ​​the air inlet is smaller than the area of ​​the circular through hole, and a tubular clamping portion is formed at the edge of the air inlet extending toward the circular through hole, the clamping portion is inserted into the circular through hole, and the outer peripheral surface of the clamping portion abuts against the hole edge of the circular through hole. In this way, the air inlet and the circular through hole can be sealed to ensure the sealed transmission of the conveying medium; in addition, the insertion and abutment of the clamping portion and the hole edge of the circular through hole can also increase the strength of the rotating impeller disk installation structure, making the rotating impeller more stable when rotating.

[0012] As another implementation of the technical solution, the area of ​​the air inlet is larger than the area of ​​the circular through hole, and a tubular clamping portion is formed at the edge of the air inlet extending in the direction of the circular through hole, and a circular clamping groove is provided on the side of the front support plate facing the air inlet corresponding to the clamping portion, and the clamping portion is embedded in the circular clamping groove. In this way, the air inlet and the circular through hole can also be sealed to ensure the sealed transmission of the conveying medium; in addition, the structure in which the clamping portion is embedded in the circular clamping groove can also enhance the strength of the rotating impeller installation structure, making the rotating impeller more stable when rotating.

[0013] As another implementation of the technical solution, the number of the front sealing leather cup and the rear sealing leather cup is two, and an annular spacer is provided between the two front sealing leather cups and between the two rear sealing leather cups. In this way, the provision of multiple sealing leather cups at the front and rear of the pipe body can effectively improve the air tightness between the jet pipe cleaner as a whole and the pipeline, and make the pressure on the rear end of the jet pipe cleaner greater than the pressure on the front end, thereby ensuring the propulsion effect of the conveying medium on the jet pipe cleaner; it can also promote the conveying medium to enter the interior of the pipe body through the through hole on the rear support plate and enter the several arc-shaped air passages inside the rotating impeller through the circular through hole and the air inlet to enhance the jet effect; in addition, the provision of the annular spacer can enhance the stability of the sealing leather cup installation and enhance its structural strength, thereby ensuring the air tightness between the jet pipe cleaner as a whole and the pipeline.

[0014] As another implementation of the technical solution, the front clamping flange and the front support plate, as well as the rear clamping flange and the rear support plate, are fastened by a plurality of bolts to clamp and fix the front sealing cup and the annular spacer, as well as the rear sealing cup and the annular spacer, so as to facilitate the installation and removal of the above components.

[0015] As another implementation of the technical solution, the diameters of the front sealing cup, the rear sealing cup and the steel brush plate are the same and larger than the diameters of the propulsion plate, the rotating impeller, the front support plate, the front clamping flange, the rear clamping flange and the rear support plate. In this way, the airtight parts and cleaning parts of the jet pipe cleaner, which are easily consumable, can contact the pipe wall, while the parts that are not easily consumable can avoid contacting the pipe wall, thereby increasing the service life of the overall structure of the jet pipe cleaner.

[0016] As another implementation of the technical solution, the fixed shaft and the rear support plate are integrally formed, or the fixed shaft and the rear support plate are fastened together by bolts. The integral forming can improve the overall structural strength of the fixed shaft and the rear support plate, and the connection through the connecting piece can facilitate the loading and unloading and maintenance of the jet pipe cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A side cross-sectional view of a jet pipe cleaner with a rotating steel brush according to the present invention;

[0018] Figure 2It is a structural diagram of the rear support plate and the fixed shaft in the present invention;

[0019] Figure 3 is a perspective view of a rotating impeller in the present invention;

[0020] Figure 4 A side cross-sectional view of a state in which the air inlet is connected to the circular through hole in the present invention;

[0021] Figure 5 It is a side cross-sectional view of another state in which the air inlet is connected to the circular through hole in the present invention.

[0022] Explanation of symbols in the accompanying drawings:

[0023] 1 Tube body; 2 Front sealing leather cup; 3 Rear sealing leather cup; 4 Front support plate; 41 Circular through hole; 42 Circular slot; 5 Rear support plate; 51 Through hole; 52 Fixed shaft; 53 Bearing; 6 Front clamping flange; 7 Rear clamping flange; 8 Steel brush plate; 81 Steel brush; 9 Rotating impeller; 91 Air inlet; 92 Arc air passage; 93 Air outlet; 94 Perforated part; 95 Clamping part; 95' Clamping part; 10 Propelling plate; 11 Annular spacer. DETAILED DESCRIPTION

[0024] The detailed description and technical contents of the present invention are described as follows with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and description and are not intended to limit the present invention.

[0025] like Figure 1As shown in the figure, a specific embodiment of the jet pipe cleaner with a rotating steel brush of the present invention is shown. The jet pipe cleaner with a rotating steel brush (hereinafter referred to as the jet pipe cleaner) comprises: a pipe body 1, at least one front sealing leather cup 2, at least one rear sealing leather cup 3, a front support plate 4, a rear support plate 5, a front clamping flange 6, a rear clamping flange 7, a steel brush plate 8, a rotating impeller 9 and a propulsion plate 10. Among them, the at least one front sealing leather cup 2 and the at least one rear sealing leather cup 3 are respectively sleeved on the front outer peripheral surface and the rear outer peripheral surface of the pipe body 1 in the shape of a cylindrical body, and the bowls of the front sealing leather cup 2 and the rear sealing leather cup 3 are both facing the rear of the jet pipe cleaner. The front and rear sealing leather cups 2 and 3 can be made of rubber material, and the pipe body 1 can be made of steel pipe or made of materials such as chloroprene rubber or high-strength polyurethane, so that the main components of the jet pipe cleaner have the characteristics of wear resistance, corrosion resistance, high toughness and certain deformation ability, so as to adapt to traveling in a pipeline with a certain undulation and turning angle. The front support plate 4 and the rear support plate 5 may be in the shape of circular plates and may be made of metal material. The front support plate 4 and the rear support plate 5 are respectively covered on the front port and the rear port of the tube body 1, and the relative annular surfaces of the front support plate 4 and the rear support plate 5 (i.e., the parts on the outside of the tube body) are respectively abutted against the front end of the at least one front sealing leather cup 2 and the rear end of the at least one rear sealing leather cup 3. The front clamping flange 6 and the rear clamping flange 7 are sleeved on the tube body 1 and respectively abut against the rear end of the at least one front sealing leather cup 2 and the front end of the at least one rear sealing leather cup 3, so that the at least one front sealing leather cup 2 and the at least one rear sealing leather cup 3 are respectively clamped and fixed between the front support plate 4 and the front clamping flange 6 and between the rear support plate 5 and the rear clamping flange 7. A circular through hole 41 communicating with the interior of the tube body 1 is opened in the middle of the front support plate 4. Combined with Figure 2 As shown, the rear support plate 5 is provided with a plurality of through holes 51 communicating with the interior of the tube body 1, and a fixed shaft 52 is formed in the middle of the rear support plate 5 along the axis of the tube body 1 toward the front support plate 4. The fixed shaft 52 passes through the circular through hole 41 and a bearing 53 is installed on the fixed shaft 52 outside the circular through hole 41. Figure 3As shown, a through hole (not shown) is provided in the middle of the rotating impeller 9, a circular air inlet 91 is provided on one side of the rotating impeller 9, and the interior of the rotating impeller 9 has a plurality of arc-shaped air passages 92 which are connected to the air inlet 91 and are radially distributed, and the end of the arc-shaped air passage 92 away from the center of the rotating impeller 9 has an air outlet 93 which is connected to the outside. The rim of the steel brush plate 8 has a steel brush 81, and the middle of the steel brush plate 8 also has a through hole (not shown). The steel brush plate 8 is fixedly mounted on the side of the rotating impeller 9 where the air inlet 91 is not provided. The installation method can be integrally formed with the rotating impeller, or can be screwed to the rotating impeller by fasteners such as bolts, and the through holes of the steel brush plate 8 are aligned with the through holes of the rotating impeller 9. The air inlet 91 of the rotating impeller 9 is coaxially opposite to the circular through hole 41 of the front support plate 4, and the through hole of the rotating impeller 9 and the through hole of the steel brush plate 8 are sleeved and fixed on the bearing 53. The end of the fixed shaft 52 passes through the through hole of the rotating impeller 9 and the through hole of the steel brush plate 8 and is fixedly combined with the middle part of the side of the propulsion plate 10 to form the jet pipe cleaner. When the jet pipe cleaner is used to clean sediment in the natural gas transmission pipeline, the transmission medium (natural gas) will push its airtight component (sealing leather cup) to make it move forward, and the sediment is pushed forward by the propulsion plate. At the same time, the conveying medium passes through the through hole 51 on the rear support plate 5, through the inside of the pipe body 1, the circular through hole 41 of the front support plate 4 and the air inlet 91, and enters the several arc-shaped air passages 92 inside the rotating impeller 9, so that the rotating impeller 9 drives the steel brush plate 8 to rotate to remove the sediment attached to the pipe wall, and the conveying medium is ejected through the air outlet 93 to form a jet to clean the sediment in front of the steel brush plate 8, so that the jet pipe cleaner has the dual effects of strong cleaning of the pipe wall and jet.

[0026] More specifically, if Figure 3 As shown, in this embodiment, the air inlet 91 is circular and is opened in the middle of one side of the rotary impeller 9 and does not penetrate the other side of the rotary impeller 9. The through hole of the rotary impeller 9 is coaxial with the air inlet 91 and is opened on the other side of the rotary impeller 9. The diameter of the air inlet 91 is larger than the diameter of the through hole of the rotary impeller 9. The through hole of the rotary impeller 9 extends toward the air inlet 91 at the hole edge to form a tubular through hole portion 94, combined with Figure 1As shown, the perforated portion 94 is sleeved and fixed on the bearing 53. In this way, the air inlet 91 can introduce the conveying medium into the interior of the rotating impeller 9, so that the rotating impeller 9 rotates under the action of the reaction force of the arc-shaped air channel 92 on the conveying medium; and the perforated portion 94 is sleeved and fixed on the bearing 53, which can improve the stability of the combination of the rotating impeller 9 and the bearing 53, thereby ensuring the stable rotation of the rotating impeller 9. Among them, the curvature of the several arc-shaped air channels 92 is the same, and the several arc-shaped air channels 92 are evenly arranged in the clockwise or counterclockwise direction inside the rotating impeller 9, and several of the air outlet holes 93 are opened on the periphery of the rotating impeller 9. The several arc-shaped air channels 92 with the same curvature and even distribution can ensure the uniformity of the reaction force on the conveying medium, thereby further ensuring the stability of the rotation of the rotating impeller 9. In addition, the cross-sectional area of ​​the arcuate air passage 92 gradually decreases from the air inlet 91 to the air outlet 93, so that not only the arcuate air passage 92 can produce a greater reaction force on the conveying medium, but also the jet of the conveying medium ejected from the air outlet 93 can have a greater force.

[0027] In this embodiment, Figure 4 As shown, the area of ​​the air inlet 91 can be smaller than the area of ​​the circular through hole 41. The edge of the air inlet 91 extends toward the circular through hole 41 to form a tubular clamping portion 95. The clamping portion 95 is inserted into the circular through hole 41, and the outer peripheral surface of the clamping portion 95 abuts against the hole edge of the circular through hole 41, so that the air inlet 91 and the circular through hole 41 can be sealed and connected to ensure the sealed transmission of the conveying medium; in addition, the insertion and abutment of the clamping portion 95 and the hole edge of the circular through hole 41 can also enhance the strength of the installation structure of the rotating impeller 9, making the rotating impeller 9 more stable when rotating. In addition, as Figure 5 As shown, the area of ​​the air inlet 91 may also be larger than the area of ​​the circular through hole 41, and a tubular clamping portion 95' is formed at the edge of the air inlet 91 extending toward the circular through hole 41. A circular clamping groove 42 is provided on the side of the front support plate surface 4 opposite to the air inlet 91 corresponding to the clamping portion 95', and the clamping portion 95' is embedded in the circular clamping groove 42, so that the air inlet 91 and the circular through hole 41 can also be sealed and connected to ensure the sealed transmission of the conveying medium; and the structure in which the clamping portion 95' is embedded in the circular clamping groove 42 can also enhance the strength of the installation structure of the rotating impeller 9, so that the rotating impeller 9 is more stable when rotating.

[0028] like Figure 1As shown, in this embodiment, the number of the front sealing cup 2 and the rear sealing cup 3 are both two, but in actual application, the number of the front sealing cup 2 and the rear sealing cup 3 can also be one or more. An annular spacer 11 can be provided between the two front sealing cups 2 and the two rear sealing cups 3. The provision of multiple sealing cups at the front and rear of the pipe body 1 can effectively improve the air tightness between the jet pipe cleaner as a whole and the pipeline, so that the pressure on the rear end of the jet pipe cleaner is greater than the pressure on the front end, thereby ensuring the propulsion effect of the conveying medium on the jet pipe cleaner; it can also promote the conveying medium to enter the interior of the pipe body 1 through the through hole 51 on the rear support plate 5 and enter the several arc-shaped air passages 92 inside the rotating impeller 9 through the circular through hole 41 and the air inlet 91, so as to enhance the jet effect. In addition, the provision of the annular spacer 11 can enhance the stability of the installation of the front and rear sealing cups 2 and 3 and enhance their structural strength, thereby ensuring the air tightness between the jet pipe cleaner as a whole and the pipeline.

[0029] In this embodiment, the front clamping flange 6 and the front support plate 4, as well as the rear clamping flange 7 and the rear support plate 5, can be fastened by a plurality of bolts (not shown in the figure) to clamp and fix the front sealing cup 2 and the annular spacer 11, as well as the rear sealing cup 3 and the annular spacer 11. Specifically, the front and rear clamping flanges, the front and rear support plates, the front and rear sealing cups and the annular spacer are provided with corresponding holes (not shown in the figure). After the above components are installed on the pipe body, the above components are fixed to the front and rear of the pipe body by bolts penetrating the holes of the above components and screwing and fastening with nuts. In this way, the above components do not need to be fixed to the pipe body by welding, bonding, etc., but can be flexibly installed and disassembled, which is convenient for the maintenance and replacement of the components.

[0030] In this embodiment, the diameters of the front sealing cup 2, the rear sealing cup 3 and the steel brush plate 8 can be substantially the same, that is, equivalent to the diameter of the pipeline, and larger than the diameters of the propulsion plate 10, the rotary impeller 9, the front support plate 4, the front clamping flange 6, the rear clamping flange 7 and the rear support plate 5. In this way, the airtight parts and cleaning parts of the jet pipe cleaner, which are easily consumable, can be in contact with the pipe wall, while the parts that are not easy to be consumable can be prevented from contacting with the pipe wall, thereby improving the service life of the overall structure of the jet pipe cleaner.

[0031] In this embodiment, the fixed shaft 52 and the rear support plate 5 can be integrally formed, so as to improve the overall structural strength of the fixed shaft 52 and the rear support plate 5. However, the fixed shaft 52 and the rear support plate 5 and the push plate 10 can also be fixedly combined by fastening with bolts (not shown in the figure), specifically, a screw-fitting portion (not shown in the figure) with an internal thread can be provided at the end of the fixed shaft 52, and a through hole (not shown in the figure) can be provided in the middle of the rear support plate 5 and the push plate 10, and a bolt is passed through the through hole of the rear support plate 5 and the push plate 10 and screwed into the screw-fitting portion of the fixed shaft 52, so as to fix the fixed shaft 52 with the rear support plate 5 and the push plate 10, so as to facilitate the loading, unloading and maintenance of the jet pipe cleaner.

[0032] In summary, when the jet pipe cleaner of the present invention is traveling in the pipeline, the conveying medium will enter the several arc-shaped air passages inside the rotating impeller through the through holes on the rear support plate, the inside of the pipe body, the circular through holes of the front support plate and the air inlet, and the rotating impeller will rotate under the action of the reaction force of the arc-shaped air passage on the conveying medium, thereby driving the steel brush disc to rotate, so that the steel brush disc can effectively and efficiently clean the pipe wall deposits. At the same time, the air outlet on the rotating impeller can form a jet with the conveying medium, so as to blow the pipe wall deposits cleaned by the steel brush disc forward in time, and promote the fluidization of the deposits in front of the jet pipe cleaner, thereby reducing the load of the propulsion plate pushing the deposits and the resistance of the jet pipe cleaner to run, and reducing the risk of the jet pipe cleaner being blocked. In addition, the connection structure of the rear support plate, the fixed shaft and the propulsion plate in the jet pipe cleaner can ensure that the main force-bearing surfaces of the jet pipe cleaner in the process of pipeline propulsion are all rigid fixed structures, and the steel brush disc is arranged on the fixed shaft through a bearing, which can also ensure the stability of its rotation and reduce the failure damage rate of the jet pipe cleaner. The jet pipe cleaner of the present invention has the dual functions of strong pipe wall cleaning and jet, and is suitable for the removal of various attached pipe wall deposits. It is used in daily pipe cleaning and pipeline inspection operations in natural gas gathering and long-distance pipelines, which will further improve the pipe cleaning efficiency and reduce operating costs.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Other equivalent changes made using the patent concept of the present invention should all fall within the patent protection scope of the present invention.

Claims

1. A jet pipe cleaner with a rotating steel brush, comprising: A tube body, two front sealing leather cups, two rear sealing leather cups, a front support plate, a rear support plate, a front clamping flange, a rear clamping flange and a steel brush plate; the two front sealing leather cups and the two rear sealing leather cups are respectively sleeved on the front outer circumferential surface and the rear outer circumferential surface of the tube body, and an annular spacer is provided between the two front sealing leather cups and the two rear sealing leather cups; the front support plate and the rear support plate are respectively covered on the front port and the rear port of the tube body, and the relative annular surfaces of the front support plate and the rear support plate are respectively in contact with the front end of the front sealing leather cup located on the outside and the rear end of the rear sealing leather cup; the front clamping flange and the rear clamping flange are sleeved on the tube body and respectively in contact with the front sealing leather cup located on the inside The rear end of the leather cup and the front end of the rear sealing leather cup are used to clamp and fix the two front sealing leather cups and the annular spacer therebetween, and the two rear sealing leather cups and the annular spacer therebetween, respectively, between the front support plate and the front clamping flange, and between the rear support plate and the rear clamping flange. The front clamping flange and the front support plate, as well as the rear clamping flange and the rear support plate, are fastened by a plurality of bolts to clamp and fix the front sealing leather cup and the annular spacer, and the rear sealing leather cup and the annular spacer; it is characterized in that it also includes: a rotating impeller and a propulsion plate; a circular through hole communicating with the interior of the tube body is opened in the middle of the front support plate; a plurality of through holes communicating with the interior of the tube body are opened on the rear support plate, and the rear support The middle part of the plate extends along the axis of the tube body toward the front support plate to form a fixed shaft, the fixed shaft passes through the circular through hole in the middle part of the front support plate and a bearing is installed on the fixed shaft outside the circular through hole; a through hole is opened in the middle part of the rotating impeller, a circular air inlet is opened on one side of the rotating impeller, the interior of the rotating impeller has a plurality of arc-shaped air passages connected to the air inlet and distributed radially, and the end of the arc-shaped air passage away from the center of the rotating impeller has an air outlet connected to the outside; the middle part of the steel brush disc also has a through hole, the steel brush disc is fixedly installed on the side of the rotating impeller where the air inlet is not opened, and the through hole of the steel brush disc is aligned with the through hole of the rotating impeller; The air inlet is coaxially opposite to the circular through hole, and the through hole of the rotating impeller and the through hole of the steel brush plate are sleeved and fixed on the bearing; the end of the fixed shaft passes through the through hole of the rotating impeller and the through hole of the steel brush plate and is fixedly combined with the middle part of the side surface of the propulsion plate; the air inlet is circular and is opened in the middle part of one side surface of the rotating impeller and does not pass through the other side surface of the rotating impeller, the through hole of the rotating impeller is coaxial with the air inlet and is opened on the other side surface of the rotating impeller, the diameter of the air inlet is larger than the diameter of the through hole of the rotating impeller, the through hole of the rotating impeller extends at the edge of the hole toward the air inlet to form a tubular through hole portion, and the through hole portion is sleeved and fixed on the bearing;The area of ​​the air inlet is larger than that of the circular through hole, and a tubular clamping portion is formed at the edge of the air inlet and extends toward the circular through hole. A circular clamping groove is provided on the side of the front support plate facing the air inlet corresponding to the clamping portion, and the clamping portion is embedded in the circular clamping groove; the fixed shaft is fastened to the rear support plate and the propulsion plate respectively by bolts. ; 2. The jet pipe cleaner with a rotating steel brush according to claim 1, characterized in that: The curvature of the plurality of arc-shaped air passages is the same and they are evenly arranged inside the rotating impeller in a clockwise or counterclockwise direction, and a plurality of the air outlet holes are formed on the periphery of the rotating impeller.

3. The jet pipe cleaner with a rotating steel brush according to claim 2, characterized in that: The cross-sectional area of ​​the arc-shaped air passage gradually decreases from the air inlet to the air outlet.

4. The jet pipe cleaner with a rotating steel brush according to claim 1, characterized in that: The diameters of the front sealing leather cup, the rear sealing leather cup and the steel brush plate are the same and larger than the diameters of the propulsion plate, the rotating impeller, the front support plate, the front clamping flange, the rear clamping flange and the rear support plate.

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