Pipe coiler

Abstract

The present disclosure belongs to the technical field of nuclear power, and particularly relates to a pipeline coiler. The pipeline coiler of the present disclosure can effectively collect and transport high-pressure pipelines in the flushing process. Considering the flushing efficiency, a large transmission gear and a small transmission gear are arranged, so that the speed of collecting the pipeline is faster than the speed of transporting the pipeline in the working process. A friction clutch mechanism is arranged to quickly switch the collection and transportation of the pipeline. When stopping is selected, only the control wrench needs to be placed in the middle position to achieve rapid stopping and ensure safety during operation. The electric high-pressure pipeline coiler has a compact structure, is convenient to carry, is suitable for carrying into the interior of a heat exchanger, and meets the needs of enterprises.

Description

Technical Field

[0001] This invention belongs to the field of nuclear power technology, and specifically relates to a pipeline reel. Background Technology

[0002] Heat exchangers are devices that transfer heat and are widely used in many industrial production processes such as chemical, petroleum, power, and food industries. However, due to the continuous sedimentation and accumulation of impurities in the heat transfer medium, heat exchanger pipelines often become clogged. In such cases, it is necessary to flush each heat exchanger tube individually using a high-pressure water gun. The flushing process requires workers to crawl into the heat exchanger through a manhole. The environment is confined, and multiple workers flushing the pipelines simultaneously can easily cause tangling, affecting the construction progress. Therefore, there is an urgent need for a proper way to store the high-pressure hoses. Summary of the Invention

[0003] To overcome the problems existing in the related technology, a pipeline reel is provided, the pipeline reel comprising: a housing, a pipe support, an upper connector and a gearbox;

[0004] The tube support is set inside the hollow structure of the outer shell. Both ends of the tube support are axially connected to the side wall of the outer shell. An inverted L-shaped flow channel is set inside one end of the tube support. The inlet of the flow channel is directly opposite the upper connector, and the outlet of the flow channel is provided with an elbow.

[0005] The gearbox is splined to the other end of the tube support. The torque input from the gearbox is transmitted to the tube support through the splined shaft. When the tube support rotates, the upper joint remains stationary relative to the tube support.

[0006] The gearbox is equipped with a receiving pipeline gear set and a conveying pipeline gear set. The receiving pipeline gear set includes a small transmission gear, an idler gear, and a large friction gear. The conveying pipeline gear set includes a large transmission gear and a large reverse friction gear.

[0007] The large friction gear is located near the gearbox base plate and is positioned by a positioning ring. Washers and ceramic friction plates are fastened to the large friction gear with screws. The large reverse friction gear is located on the gearbox housing and is positioned by a limiting ring on the splined shaft. The limiting ring is fixedly connected to the splined shaft. A friction gear bearing is installed between the large reverse friction gear and the housing. Washers and ceramic friction plates of the large reverse friction gear are fastened to the large reverse friction gear with gear screws.

[0008] The upper and lower friction rings are fastened with screws. The clutch control ring is located between the upper and lower friction rings. The Y-shaped frame is connected to the positioning ring through the positioning ring shaft pin. The Y-shaped frame is connected to the clutch control ring through the transmission shaft pin. The Y-shaped frame and the control handle are threaded together. The control handle passes through the positioning ring hinged to the gearbox. The pitch movement of the control handle is constrained. The horizontal movement process can be achieved by pushing the upper and lower friction rings along the spline shaft through the connected clutch control ring.

[0009] The idler gear is located inside the gearbox between the small transmission gear and the large friction gear. One side is positioned on the bottom plate of the gearbox, and the other side is positioned at the stepped shaft of the idler gear shaft. Both ends of the idler gear shaft contact the bottom plate of the gearbox and the inner wall of the gearbox, and are equipped with transmission wheel bearings to ensure that the idler gear shaft rotates relative to the gearbox.

[0010] The two ends of the transmission shaft contact the bottom plate of the gearbox and the inner side of the gearbox, and are engaged with the transmission bearings to ensure that the transmission shaft can rotate relative to the gearbox. One end of the small transmission gear is in close contact with the bottom plate of the gearbox, and the other end is positioned by the stepped shaft of the transmission shaft and is engaged with the transmission shaft by a key. One end of the large transmission gear is in close contact with the inner wall of the gearbox, and the other end is positioned by the stepped shaft of the transmission shaft. The pulley is located at a position slightly behind the transmission shaft, and its end face is connected to the transmission shaft and is engaged with the transmission shaft by a keyway.

[0011] In one possible implementation, the housing includes an upper housing and a lower housing;

[0012] The upper and lower shells are fixedly connected by multiple bottom fastening bolts located at the bottom and multiple top fastening bolts located at the top, respectively, and the pipe support is set between the upper and lower shells.

[0013] In one possible implementation, a first through hole is formed on the side of the upper housing, which extends through both sides of the upper housing. The first through hole has a first step portion and a second step portion extending inward along the first through hole. The end face of the first step portion is closer to the outer side of the upper housing than the second step portion, and the inner diameter of the first step portion is larger than the inner diameter of the second step portion.

[0014] One end of the upper connector end cover is a flange structure. The flange structure of the upper connector end cover is fixedly connected to the end face of the first step by multiple end cover fastening screws, which restricts the upper connector bearing between the flange structure and the second step, thereby positioning the upper connector bearing on the side wall of the upper housing.

[0015] A pipe joint sealing ring is provided between the upper connector end cap and the pipe joint, and a bearing sealing ring is provided between one end of the pipe support and the upper connector bearing;

[0016] The other end of the upper connector end cap is threaded to one end of the upper connector. The port of the upper connector faces but does not contact the port of the pipe connector. During the operation of the pipe reel, the pipe connector rotates with the pipe support, while the upper connector and the upper connector end cap remain stationary relative to the pipe connector and the pipe support.

[0017] In one possible implementation, when the pipe reel is working, the medium source pipeline is connected to the upper connector and the nozzle pipeline is connected to the pipe support via an elbow.

[0018] An external motor drives the transmission shaft to rotate via a belt. The small transmission gear drives the idler gear and the large friction gear, thus achieving clockwise rotation of the large friction gear.

[0019] In one possible implementation, the large transmission gear meshes with the large reverse friction gear, enabling the large reverse friction gear to rotate counterclockwise.

[0020] In one possible implementation, when the control handle is in the center plane position of the gearbox, the upper friction ring and the lower friction ring are not in contact with the ceramic friction plate. At this time, the friction gear and the reverse friction gear rotate freely, and the tube support has no torque.

[0021] When the control handle moves to the rear, the Y-shaped frame pushes the upper friction ring forward. At this time, the ceramic friction plate comes into contact with the upper friction ring, and the friction force drives the upper friction ring to rotate. The spline inside the upper friction ring transmits torque to the spline shaft, and the pipe support rotates forward to retract the high-pressure hose.

[0022] When the control handle moves forward, the Y-shaped bracket pushes the lower friction ring to move backward. At this time, the ceramic friction plate comes into contact with the lower friction ring, and the friction force drives the lower friction ring to rotate. The spline inside the lower friction ring transmits torque to the spline shaft, and the pipe support reverses to deliver the high-pressure hose.

[0023] The beneficial effects of this disclosure are as follows: The pipe reel can effectively collect and transport high-pressure pipes during flushing. Considering flushing efficiency, a large transmission gear and a small transmission gear are used, allowing the pipe collection speed to be faster than the pipe transport speed during operation. A friction clutch mechanism is incorporated for rapid switching between pipe collection and transport; when stopping, simply placing the control wrench in the middle position achieves a quick stop, ensuring safety during operation. This electric high-pressure pipe reel has a compact structure, is easy to carry, and is suitable for insertion into heat exchangers, meeting the needs of enterprise users. Attached Figure Description

[0024] Figure 1 This is a perspective view of a pipe reel according to an exemplary embodiment.

[0025] Figure 2 This is an axial sectional view of a pipe reel according to an exemplary embodiment.

[0026] Figure 3 This is a schematic diagram of the housing structure of a pipeline hose reel according to an exemplary embodiment.

[0027] Figure 4 This is a schematic diagram of the upper interface structure of a pipeline hose reel according to an exemplary embodiment.

[0028] Figure 5This is an exploded structural view of the gearbox base plate and lower housing of a pipeline hose reel according to an exemplary embodiment.

[0029] Figure 6 This is a schematic diagram of the gearbox shaft side structure of a pipeline hose reel according to an exemplary embodiment.

[0030] Figure 7 This is an exploded structural schematic diagram of the clutch mechanism of a pipeline hose reel according to an exemplary embodiment.

[0031] Figure 8 This is a schematic diagram of the transmission wheel system of a pipeline hose reel according to an exemplary embodiment.

[0032] In the diagram: 1. Upper housing; 2. Lower housing; 3. Bottom fastening bolts of housing; 4. Top fastening bolts of housing; 5. Elbow; 6. Pipe support; 7. Upper connector; 8. Upper connector sealing ring; 9. End cap fastening screws; 10. Upper connector end cap; 11. Pipe connector; 12. Pipe connector sealing ring; 13. Upper connector bearing; 14. Bearing sealing ring; 15. Gearbox bearing; 16. Gearbox base plate; 17. Gearbox base plate fastening screws; 18. Gearbox outer shell; 19. Gearbox fastening screws; 20. Belt drive housing; 21. Belt drive housing screws; 22. Friction gear; 23. 24. Washer, 25. Ceramic friction plate, 26. Positioning ring, 27. Positioning ring screw, 28. Splined shaft, 29. Upper friction ring, 30. Clutch control ring, 31. Lower friction ring, 32. Friction ring screw, 33. Limiting ring, 34. Friction gear bearing, 35. Reverse friction large gear, 36. Gear screw, 37. Drive shaft pin, 38. Positioning ring, 39. Y-shaped bracket, 40. Positioning ring shaft pin, 41. Control handle, 42. Drive wheel bearing, 43. Small transmission gear, 44. Idler wheel, 45. Transmission shaft, 46. Pulley, 47. Idler wheel shaft, 48. Large transmission gear. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Figure 1 This is a perspective view of a pipe reel according to an exemplary embodiment. Figure 2 This is an axial sectional view of a pipe reel according to an exemplary embodiment. Figure 3 This is a schematic diagram of the housing structure of a pipe reel according to an exemplary embodiment. The pipe reel includes: a housing, a pipe support, an upper connector, and a gearbox;

[0035] like Figures 1 to 3As shown, the upper shell 1 and the lower shell 2 are fixedly connected to form a support structure with an inverted U-shaped cross-section, used to support the other components of the pipe reel. The upper shell 1 and the lower shell 2 are fixedly connected by multiple bottom-fastening bolts 3 located at the bottom and multiple top-fastening bolts 4 located at the top. A pipe support 6 is positioned between the upper shell 1 and the lower shell 2. Figure 2 As shown, the tube support 6 has an inverted L-shaped flow channel inside. The inlet of the flow channel is fixedly connected to the tube connector 11 and is equipped with a sealing ring 12. The outlet of the flow channel is equipped with an elbow 5, which can guide the direction of the hose retraction.

[0036] This invention effectively collects and transports high-pressure pipelines during flushing. Considering flushing efficiency, a large transmission gear and a small transmission gear are used, allowing the pipeline collection speed to be faster than the pipeline transport speed during operation. A friction clutch mechanism is incorporated for rapid switching between pipeline collection and transport; to stop, simply place the control wrench in the middle position for a quick stop, ensuring operational safety. This electric high-pressure pipeline reel has a compact structure, is easy to carry, and is suitable for insertion into heat exchangers, meeting the needs of enterprise users.

[0037] Figure 4 This is a schematic diagram of the upper interface structure of a pipeline hose reel according to an exemplary embodiment, as shown below. Figure 2 and Figure 4 As shown, a first through hole is formed on the side of the upper housing 1, penetrating both sides of the upper housing. The first through hole contains a first stepped portion and a second stepped portion extending inwards along the first through hole. The end face of the first stepped portion is closer to the outer side of the upper housing 1 than the second stepped portion, and the inner diameter of the first stepped portion is larger than the inner diameter of the second stepped portion. One end of the upper connector end cover 10 is a flange structure. The flange structure of the upper connector end cover 10 is fixedly connected to the end face of the first stepped portion by multiple end cover fastening screws 9, thus confining the upper connector bearing 13 between the flange structure and the second stepped portion, thereby positioning the upper connector bearing 13 on the side wall of the upper housing 1. A pipe connector sealing ring 12 is provided between the upper connector end cover 10 and the pipe connector 11, and a forming sealing ring 14 is provided between one end of the pipe support 6 and the upper connector bearing 13. The other end of the upper connector end cap 10 is threaded to one end of the upper connector 7. The port of the upper connector 7 is directly opposite to but does not contact the port of the pipe connector 11. During the operation of the pipe reel, the pipe connector 11 rotates with the pipe support 6, while the upper connector 7 and the upper connector end cap 10 remain stationary relative to the pipe connector 11 with the pipe support 6.

[0038] The top of the upper shell 1 and the lower shell 2 are equipped with lifting handles for easy transportation. The hollow structure at the bottom of the upper shell and the lower shell is conducive to the auxiliary locking of the overall structure in complex environments.

[0039] Figure 5 This is an exploded structural view of the gearbox base plate and lower housing of a pipeline hose reel according to an exemplary embodiment. Figure 6 This is a schematic diagram of the gearbox shaft side structure of a pipe reel according to an exemplary embodiment. (See diagram below.) Figure 2 , Figure 5 and Figure 6 As shown, the other end of the tube support 6 is connected to the side wall of the lower housing via the gearbox bearing 15, and the other end of the tube support 6 is connected to the spline shaft 27 via a spline. The torque input from the gearbox is transmitted to the tube support 6 through the spline shaft 27. The gearbox base plate 16 is fastened to the side of the lower housing 2 by gearbox base plate fastening screws 17, the gearbox outer shell 18 is fixedly connected to the gearbox base plate 16 by gearbox fastening screws 19, and the belt drive housing 20 is fixedly connected to the gearbox outer shell 18 by belt drive housing screws 21.

[0040] Figure 7 This is an exploded structural schematic diagram of the clutch mechanism of a pipeline hose reel according to an exemplary embodiment. Figure 8 This is a schematic diagram illustrating the structure of a transmission wheel system for a pipeline hose reel according to an exemplary embodiment. For example... Figure 7 and Figure 8 As shown, the gearbox is equipped with a receiving pipeline gear set and a conveying pipeline gear set. The receiving pipeline gear set includes a small transmission gear 42, an idler gear 43, and a friction gear 22. The conveying pipeline gear set includes a large transmission gear 47 and a reverse friction gear 34.

[0041] like Figure 7 As shown, the large friction gear 22 is located near the gearbox base plate and is positioned by a locating ring 25. Washers 23 and ceramic friction plates 24 are fastened to the large friction gear 22 with screws. The reverse friction gear 34 is located on the gearbox housing and is positioned by a limiting ring 32 on the splined shaft 27. The limiting ring 32 is fixedly connected to the splined shaft 27 by friction ring screws 31. A friction gear bearing 33 is provided between the reverse friction gear 34 and the housing 18. Reverse friction gear washers 23 and ceramic friction plates 24 are fastened to the reverse friction gear 34 with gear screws 35.

[0042] like Figure 7 As shown, the upper friction ring 28 and the lower friction ring 30 are fastened by screws. The clutch control ring 29 is located between the upper friction ring 28 and the lower friction ring 30. The Y-shaped frame 38 is connected to the positioning ring 37 through the positioning ring shaft pin 39. The Y-shaped frame 38 is connected to the clutch control ring 29 through the transmission shaft pin 36. The Y-shaped frame 38 and the control handle 40 are threadedly connected. The control handle 40 passes through the positioning ring 37 which is hinged to the gearbox. The pitch movement of the control handle 40 is constrained. The horizontal movement process can be achieved by the connected clutch control ring 29, which can push the upper and lower friction rings to move along the spline shaft 27.

[0043] like Figure 8 As shown, the idler gear 43 is located between the small transmission gear 42 and the friction gear 22 inside the gearbox. One side is positioned on the gearbox base plate 16, and the other side is positioned at the stepped shaft of the idler gear shaft 46. Both ends of the idler gear shaft 46 contact the gearbox base plate 16 and the inner wall of the gearbox, and are provided with transmission wheel bearings 41 to ensure that the idler gear shaft 46 rotates relative to the gearbox.

[0044] The two end faces of the transmission shaft 44 contact the gearbox base plate 16 and the inner side of the gearbox, and are engaged with the transmission bearing 41 to ensure that the transmission shaft 44 can rotate relative to the gearbox. One end face of the small transmission gear 42 is tightly against the gearbox base plate 16, and the other end is positioned by the stepped shaft of the transmission shaft 44 and engages with the transmission shaft 44 via a key. One end face of the large transmission gear 47 is tightly against the inner wall of the gearbox, and the other end face is positioned by the stepped shaft of the transmission shaft 44. The pulley 45 is located slightly rear of the transmission shaft 44, with its end face connected to the transmission shaft 44 and engaging with the transmission shaft 44 via a keyway.

[0045] In one application example, when the hose reel is working, the medium source pipeline is first connected to the upper connector 7, and the nozzle pipeline is connected to the pipe support 6 via the elbow 5. An external motor drives the transmission shaft 44 to rotate via a belt. The small transmission gear 42 drives the idler gear 43 and the friction gear 22, achieving clockwise rotation of the friction gear 22. The large transmission gear 47 meshes with the reverse friction gear 34, achieving counterclockwise rotation of the reverse friction gear 34. When the control handle 40 is in the center plane position of the gearbox, the upper friction ring 28 and lower friction ring 30 are not in contact with the ceramic friction plate 24. At this time, the friction gear 22 and the reverse friction gear 34 rotate freely, and the pipe support 6 has no torque. When the control handle 40 moves backward, the Y-shaped frame 38 pushes the upper friction ring 28 forward. At this time, the ceramic friction plate 24 contacts the upper friction ring 28, and the friction force drives the upper friction ring 28 to rotate. The spline inside the upper friction ring 28 transmits torque to the spline shaft, and the pipe support 6 rotates clockwise to retract the high-pressure hose. When the control handle 40 moves forward, the Y-shaped frame 38 pushes the lower friction ring 30 to move backward. At this time, the ceramic friction plate 24 comes into contact with the lower friction ring 30, and the friction force drives the lower friction ring 30 to rotate. The spline inside the lower friction ring 30 transmits torque to the main shaft, and the pipe support 6 reverses to transport the high-pressure hose.

[0046] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A pipe reel, characterized in that, The pipeline reel includes: a housing, a pipe support, an upper connector, and a gearbox; The tube support is set inside the hollow structure of the outer shell. Both ends of the tube support are axially connected to the side wall of the outer shell. An inverted L-shaped flow channel is set inside one end of the tube support. The inlet of the flow channel is directly opposite the upper connector, and the outlet of the flow channel is provided with an elbow. The gearbox is splined to the other end of the tube support. The torque input from the gearbox is transmitted to the tube support through the splined shaft. When the tube support rotates, the upper joint remains stationary relative to the tube support. The gearbox is equipped with a receiving pipeline gear set and a conveying pipeline gear set. The receiving pipeline gear set includes a small transmission gear, an idler gear, and a large friction gear. The conveying pipeline gear set includes a large transmission gear and a large reverse friction gear. The large friction gear is located near the gearbox base plate and is positioned by a positioning ring. Washers and ceramic friction plates are fastened to the large friction gear with screws. The large reverse friction gear is located on the gearbox housing and is positioned by a limiting ring on the splined shaft. The limiting ring is fixedly connected to the splined shaft. A friction gear bearing is installed between the large reverse friction gear and the housing. Washers and ceramic friction plates of the large reverse friction gear are fastened to the large reverse friction gear with gear screws. The upper and lower friction rings are fastened with screws. The clutch control ring is located between the upper and lower friction rings. The Y-shaped frame is connected to the positioning ring through the positioning ring shaft pin. The Y-shaped frame is connected to the clutch control ring through the transmission shaft pin. The Y-shaped frame and the control handle are threaded together. The control handle passes through the positioning ring hinged to the gearbox. The pitch movement of the control handle is constrained. The horizontal movement can be achieved by pushing the upper and lower friction rings along the spline shaft through the connected clutch control ring. The idler gear is located inside the gearbox between the small transmission gear and the large friction gear. One side is positioned on the bottom plate of the gearbox, and the other side is positioned at the stepped shaft of the idler gear shaft. Both ends of the idler gear shaft contact the bottom plate of the gearbox and the inner wall of the gearbox, and are equipped with transmission wheel bearings to ensure that the idler gear shaft rotates relative to the gearbox. The two ends of the transmission shaft contact the bottom plate of the gearbox and the inner side of the gearbox, and are engaged with the transmission bearings to ensure that the transmission shaft can rotate relative to the gearbox. One end of the small transmission gear is in close contact with the bottom plate of the gearbox, and the other end is positioned by the stepped shaft of the transmission shaft and is engaged with the transmission shaft by a key. One end of the large transmission gear is in close contact with the inner wall of the gearbox, and the other end is positioned by the stepped shaft of the transmission shaft. The pulley is located at a position slightly behind the transmission shaft, and its end face is connected to the transmission shaft and is engaged with the transmission shaft by a keyway.

2. The pipeline hose reel according to claim 1, characterized in that, The outer casing includes an upper casing and a lower casing; The upper and lower shells are fixedly connected by multiple bottom fastening bolts located at the bottom and multiple top fastening bolts located at the top, respectively, and the pipe support is set between the upper and lower shells.

3. The pipeline reel according to claim 2, characterized in that, A first through hole is opened on the side of the upper shell, which passes through both sides of the upper shell. The first through hole has a first step portion and a second step portion extending inward along the first through hole. The end face of the first step portion is closer to the outer side of the upper shell than the second step portion, and the inner diameter of the first step portion is larger than the inner diameter of the second step portion. One end of the upper connector end cover is a flange structure. The flange structure of the upper connector end cover is fixedly connected to the end face of the first step by multiple end cover fastening screws, which restricts the upper connector bearing between the flange structure and the second step, thereby positioning the upper connector bearing on the side wall of the upper housing. A pipe joint sealing ring is provided between the upper connector end cap and the pipe joint, and a bearing sealing ring is provided between one end of the pipe support and the upper connector bearing; The other end of the upper connector end cap is threaded to one end of the upper connector. The port of the upper connector faces but does not contact the port of the pipe connector. During the operation of the pipe reel, the pipe connector rotates with the pipe support, while the upper connector and the upper connector end cap remain stationary relative to the pipe connector and the pipe support.

4. The pipeline hose reel according to claim 1, characterized in that, When the pipe reel is in operation, the medium source pipeline is connected to the upper connector, and the nozzle pipeline is connected to the pipe support through an elbow. An external motor drives the transmission shaft to rotate via a belt. The small transmission gear drives the idler gear and the large friction gear, thus achieving clockwise rotation of the large friction gear.

5. The pipeline hose reel according to claim 4, characterized in that, The large transmission gear meshes with the large reverse friction gear, enabling the large reverse friction gear to rotate counterclockwise.

6. The pipeline hose reel according to claim 5, characterized in that, When the control handle is in the center plane position of the gearbox, the upper friction ring and the lower friction ring are not in contact with the ceramic friction plate. At this time, the friction gear and the reverse friction gear are spinning freely, and the tube support has no torque. When the control handle moves to the rear, the Y-shaped frame pushes the upper friction ring forward. At this time, the ceramic friction plate comes into contact with the upper friction ring, and the friction force drives the upper friction ring to rotate. The spline inside the upper friction ring transmits torque to the spline shaft, and the pipe support rotates forward to retract the high-pressure hose. When the control handle moves forward, the Y-shaped bracket pushes the lower friction ring to move backward. At this time, the ceramic friction plate comes into contact with the lower friction ring, and the friction force drives the lower friction ring to rotate. The spline inside the lower friction ring transmits torque to the spline shaft, and the pipe support reverses to deliver the high-pressure hose.

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