Automatic rust and scale removal device for inner wall of production oil pipe

Abstract

The utility model discloses an automatic rust and scale removal device for the inner wall of a production oil pipe. The automatic rust and scale removal device comprises a pipe frame base, a motor, a control system, a speed reduction driving assembly, an outer barrel, an inner barrel, a barrel supporting assembly, a power trolley and a water pipe. According to the oil pipe cleaning device, the travel motor and the assembly thereof drive the power trolley to drive the outer barrel and the inner barrel to move along the track on the pipe frame base and then move into the oil pipe, the steel brush is arranged on the inner barrel, and when the barrel body is in the oil pipe, the power motor and the assembly thereof drive the inner barrel and the steel brush to rotate in the oil pipe to conduct rotary brush cleaning on the inner wall of the oil pipe; meanwhile, the inner barrel is communicated with a water pipe, flushing is carried out while brushing is carried out, brushed rust scales are flushed out of the oil pipe, the cleaning quality and efficiency are improved, the barrel body movement displacement is long, and the barrel body supporting assembly is arranged so that it can be guaranteed that the barrel body keeps stable in the stroke and is prevented from being bent; and meanwhile, the control system accurately controls the equipment to start and stop after receiving a signal of the sensor, so that automatic rust and scale removal is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of rust and scale removal, in particular to an automatic rust and scale removal device for the inner wall of a production oil pipe. Background Art

[0002] Production tubing (hereinafter referred to as tubing) is widely used in the field of oil and gas extraction. The tubing is often immersed in the wellbore liquid or corroded by gas, which leads to the decrease of pipe strength or failure of thread seal. In order to ensure production safety, the tubing needs to be regularly pulled out and replaced. The pulled out tubing is sent to a professional repair company for inspection and maintenance.

[0003] At present, the oil pipe cleaning is generally carried out by using an automatic oil pipe cleaning machine. The oil pipe enters the cleaning machine and is discharged after high-temperature steaming and high-pressure flushing. The outer wall is then derusted by a steel brush before being discharged. Since high-pressure flushing cannot completely remove the rust and dirt on the inner wall of the oil pipe, in order to ensure the quality of oil pipe repair, an additional process of derusting and descaling the inner wall of the oil pipe must be added.

[0004] Therefore, the prior art still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide an automatic rust and scale removal device for the inner wall of a production oil pipe, aiming to solve the problem that high-pressure flushing in the prior art cannot completely remove rust and scale on the inner wall of the oil pipe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, a device for automatically removing rust and scale from the inner wall of a production oil pipe comprises:

[0008] A pipe rack base, on which a track is arranged, a liquid storage tank is arranged at one end of the pipe rack base, two groups of bayonet holes are arranged on opposite sides of the liquid storage tank, and one group of bayonet holes is connected with an oil pipe;

[0009] The speed reduction drive assembly is arranged on the other end of the pipe rack base opposite to the liquid storage tank and is located on the track;

[0010] At least two outer cylinders are provided on the reduction drive assembly and pass through another set of bayonet holes on the liquid storage tank, and the outer diameter of the outer cylinder is smaller than the inner diameter of the oil pipe;

[0011] At least two inner cylinders are connected to the output end of the reduction drive assembly and arranged in the outer cylinder. The inner cylinder is hollow inside and is provided with a through hole at the end away from the reduction drive assembly. A steel brush is also provided at one end of the inner cylinder located in the liquid storage tank.

[0012] A plurality of cylinder support assemblies are rotatably connected to the pipe rack base and arranged at intervals, and the top ends of the cylinder support assemblies abut against the outer cylinder;

[0013] The power trolley is arranged at the bottom of the reduction drive assembly and abuts against the track;

[0014] The water pipe is arranged on the reduction drive assembly and is connected with the inner cylinder.

[0015] Furthermore, a fixing frame is provided on the pipe rack base, a plurality of photoelectric sensors are provided on the fixing frame at intervals, and a sensing block is provided on a side of the power trolley close to the fixing frame.

[0016] Furthermore, the power vehicle comprises:

[0017] Bottom plate, two sets of limit blocks are arranged at the lower end of the bottom plate;

[0018] The shaft rod is clamped on the limit block and extends to both sides;

[0019] Two travel pulleys are arranged on both sides of the shaft and connected to the track;

[0020] The travel motor is arranged on one side of the base plate, and an output end is connected with a shaft rod.

[0021] Furthermore, a travel gear is provided on the shaft rod, and a chain is provided on the outer sleeve of the travel gear.

[0022] Furthermore, the reduction drive assembly comprises:

[0023] The power motor is arranged at the upper end of the power trolley;

[0024] A reducer is provided at the output end of the power motor;

[0025] The gear box is arranged at the upper end of the power trolley, and a driving gear and two driven gears are rotatably connected inside. The driving gear is connected to the output end of the reducer, and the driven gear is clamped with the inner cylinder.

[0026] Furthermore, the cylinder support assembly comprises:

[0027] Two rod seats are coaxially arranged on both sides of the pipe rack base, and round rods are rotatably connected in the two rod seats;

[0028] Two support rods are arranged on the round rod at intervals, and support rollers are provided on the support rods, and the support rollers are connected to the outer cylinder;

[0029] The driving member is arranged on one side of the pipe rack base, and the output end is connected to one end of the supporting rod.

[0030] Furthermore, the driving member is a cylinder, and the output end of the cylinder is rotatably connected to a crank, which is arranged at one end of the support rod.

[0031] Furthermore, two groups of roller assemblies are provided on the liquid storage tank. The roller assemblies are arranged outside the bayonet facing the reduction drive assembly and abut against the outer cylinder.

[0032] Furthermore, a flexible movable wire trough is provided on one side of the pipe rack base. The flexible movable wire trough is fixed by a plurality of wire trough brackets and is extended and arranged on the ground.

[0033] The technical solution adopted by the utility model has the following beneficial effects:

[0034] In the present application, the utility model discloses an automatic rust and scale removal device for the inner wall of a production oil pipe, comprising a pipe rack base, a motor, a control system, a reduction drive assembly, an outer cylinder, an inner cylinder, a cylinder support assembly, a power trolley, and a water pipe; in the present application, the travel motor and its assembly drive the power trolley to drive the outer cylinder and the inner cylinder to move along the length direction of the pipe rack base, and a steel brush is arranged on the inner cylinder. When the cylinder is in the oil pipe, the power motor and its assembly drive the inner cylinder and the steel brush to rotate in the oil pipe to clean the inner wall of the oil pipe by rotating the brush. At the same time, the inner cylinder is connected to a water pipe, and flushing is performed while the brush is rotating, so that the rust and scale brushed off are flushed out of the oil pipe, thereby improving the cleaning quality and efficiency; due to the long movement displacement of the cylinder, a cylinder support assembly is arranged for this purpose to ensure that the cylinder remains stable during movement to avoid bending; at the same time, the control system accurately controls the start and stop of the equipment after receiving the sensor signal, thereby realizing automatic rust and scale removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the structure of an automatic rust and scale removal device for the inner wall of a production oil pipe provided by the utility model;

[0036] Figure 2 The utility model provides an automatic rust and scale removal device for the inner wall of a production oil pipe Figure 1 Schematic diagram of the local structure at A in the middle;

[0037] Figure 3 The utility model provides an automatic rust and scale removal device for the inner wall of a production oil pipe Figure 1 Schematic diagram of the local structure at B in the middle;

[0038] Figure 4 A partial structural schematic diagram of an automatic rust and scale removal device for the inner wall of a production oil pipe provided by the utility model;

[0039] Figure 5 A schematic diagram of the structure of a cylinder support assembly of an automatic rust and scale removal device for the inner wall of a production oil pipe provided by the utility model;

[0040] Figure 6 A schematic diagram of the structure of a power trolley for an automatic rust and scale removal device for the inner wall of a production oil pipe provided by the utility model;

[0041] Figure 7 A schematic diagram of the structure of a reduction drive assembly of an automatic rust and scale removal device for the inner wall of a production oil pipe provided by the utility model;

[0042] Figure 8 A schematic cross-sectional structure diagram of a reduction drive assembly of an automatic rust and scale removal device for the inner wall of a production oil pipe provided by the utility model;

[0043] Fig. 9 The utility model is a schematic diagram of the inner cylinder structure of an automatic rust and scale removal device for the inner wall of a production oil pipe.

[0044] 1. Pipe rack base; 2. Track; 3. Liquid storage tank; 4. Bayonet; 5. Oil pipe; 6. Outer tube; 7. Inner tube; 8. Steel brush; 9. Water pipe; 10. Fixed frame; 11. Photoelectric sensor; 12. Induction block; 13. Bottom plate; 14. Limit block; 15. Shaft; 16. Travel pulley; 17. Travel motor; 18. Travel gear; 19. Chain; 20. Power motor; 21. Reducer; 22. Gearbox; 23. Driving gear; 24. Driven gear; 25. Rod seat; 26. Round rod; 27. Support rod; 28. Support roller; 29. ​​Driving member; 30. Crank; 31. Roller assembly; 32. Flexible active wire trough; 33. Wire trough bracket; 34. Through hole. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0046] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0047] It should also be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] First, see Figure 1-Figure 9 , an automatic rust and scale removal device for the inner wall of a production oil pipe 5, comprising a pipe rack base 1, a track 2 is provided on the pipe rack base 1, a liquid storage tank 3 is provided at one end of the pipe rack base 1, two groups of bayonet holes 4 are provided on opposite sides of the liquid storage tank 3, and an oil pipe 5 is clamped in one group of bayonet holes 4; a reduction drive assembly is provided on the other end of the pipe rack base 1 opposite to the liquid storage tank 3 and is located on the track 2; at least two outer cylinders 6 are provided on the reduction drive assembly and pass through the other group of bayonet holes 4 on the liquid storage tank 3, and the outer diameter of the outer cylinder 6 is smaller than the inner diameter of the oil pipe 5; at least two inner cylinders 7 are connected to the output end of the reduction drive assembly and are arranged in the outer cylinder 6, and The inner cylinder 7 is hollow inside and is provided with a plurality of through holes 34 at the end away from the reduction drive assembly. The through holes 34 are arranged in a circle. A steel brush 8 is also provided at one end of the inner cylinder 7 located in the liquid storage tank 3. While the steel brush 8 is brushing, clean water is introduced into the oil pipe 5 through the through hole for further flushing; a plurality of cylinder support assemblies are rotatably connected to the pipe rack base 1 and are arranged at intervals, and the top end of the cylinder support assembly is abutted against the outer cylinder 6; the power trolley is arranged at the bottom of the reduction drive assembly and abuts against the track 2; the water pipe 9 is arranged on the driven gear shaft of the gear box 22 and is connected to the inner cylinder 7; wherein the driven gear shaft is hollow to facilitate water circulation.

[0050] The travel motor 17 and its components drive the power trolley to drive the outer cylinder 6 and the inner cylinder 7 to move along the track on the pipe rack base, and then move into the oil pipe 5, and a steel brush 8 is set on the inner cylinder 7. When the cylinder is in the oil pipe 5, the power motor 20 and its components drive the inner cylinder 7 and the steel brush 8 to rotate in the oil pipe 5, and the inner wall of the oil pipe 5 is cleaned by the rotating brush. At the same time, the inner cylinder 7 is connected to a water pipe 9, which is flushed while the brush is rotating, and the rust and scale brushed off are flushed out of the oil pipe 5, thereby improving the cleaning quality and efficiency. Due to the long movement displacement of the cylinder, a cylinder support assembly is set to ensure that the cylinder remains stable during the stroke to avoid bending, thereby realizing automatic rust removal.

[0051] Also, see Figure 1A flexible movable wire trough 32 is also provided on one side of the pipe rack base 1. The flexible movable wire trough 32 is fixed by a plurality of wire trough brackets 33 and is extended and arranged on the ground. The cross-section of the flexible movable wire trough 32 is concave, and the concave surface faces the ground. When the device is in operation, the flexible movable wire trough 32 can be laid on the ground as the power trolley moves. Not only water pipes 9 but also connecting wires are arranged in the wire trough to avoid twisting the pipeline into the pipe rack base 1 during operation, which causes the operation of the device to be blocked.

[0052] Please note that Figure 1 and Figure 3 Two groups of roller assemblies 31 are also provided on the liquid storage tank 3. The roller assemblies 31 are arranged outside the bayonet 4 facing the reduction drive assembly and abut against the outer cylinder 6. The outer cylinder 6 is clamped by the two groups of roller assemblies 31, so that the stability of the outer cylinder 6 during operation can be maintained and the resistance of the outer cylinder 6 to operation is reduced.

[0053] In the implementation of the present utility model, please refer to Figure 1 and Figure 2 A fixing frame 10 is also provided on the pipe rack base 1, and a plurality of photoelectric sensors 11 are arranged at intervals on the fixing frame 10, and a sensing block 12 is provided on the side of the power trolley close to the fixing frame 10. Specifically, there are 5 photoelectric sensors 11, and two photoelectric sensors 11 with the shortest distance are arranged at the power trolley. When the sensing block 12 at the lower part of the power trolley blocks the three photoelectric sensors 11 in the middle, the cylinder support assembly falls down or stands up, and when the front sensor is blocked, the operating table stops for 10 seconds to wait for the oil pipe 5 to be unloaded after descaling is completed and the oil pipe 5 to be operated is loaded, and then continues to move forward; when the last sensor is blocked, the operating table stops for 5 seconds to wait for the steel brush 8 to completely pass through the oil pipe 5 and then continues to move backward, thereby realizing automatic rust and scale removal of the oil pipe 5.

[0054] In this example, see Figure 1 , Figure 4 and Figure 6 The power trolley is composed of a base plate 13, a shaft 15, two travel pulleys 16 and a travel motor 17. Two sets of limit blocks 14 are provided at the lower end of the base plate 13; the shaft 15 is clamped in the limit blocks 14 and extends to both sides; the two travel pulleys 16 are respectively arranged on both sides of the shaft 15 and connected to the track 2; the travel motor 17 is arranged on one side of the base plate 13, and a shaft 15 is connected to the output end. In addition, a travel gear 18 is also provided on the shaft 15, and a chain 19 is provided on the outer sleeve of the travel gear 18.

[0055] That is to say, when the travel motor 17 is started, it drives one shaft rod 15 to rotate, and the two shaft rods 15 are connected by the travel gear 18 and the chain 19, that is, the travel motor 17 drives the two shaft rods 15 to rotate at the same time, making the drive more stable, and the power trolley is connected to the track 2 through the travel pulley 16, so that the power trolley can move on the track 2, which is convenient for operation.

[0056] It should be noted that the chain 19 used in the present device is a type of transmission member. In other embodiments, other transmission members such as a transmission belt may also be used to link the two shafts 15 .

[0057] In this example, see Figure 1 , Figure 7 and Figure 8 The reduction drive assembly includes a power motor 20, a reducer 21, and a gear box 22; the power motor 20 is arranged at the upper end of the power trolley; the reducer 21 is arranged at the output end of the power motor 20; the gear box 22 is arranged at the upper end of the power trolley, and is internally rotatably connected with a driving gear 23 and two driven gears 24, the driving gear 23 is connected to the output end of the reducer 21, and the driven gear 24 is clamped with the inner cylinder 7.

[0058] Specifically, the driven gear 24 is connected to the end of the water pipe 9 through a bearing, and is clamped to the inner cylinder 7. After the power motor 20 is started, the driving gear 23 can drive the two driven gears 24 to rotate simultaneously, thereby driving the inner cylinder 7 to rotate, so that the steel brush 8 can rotate and brush in the oil pipe 5, thereby improving the cleaning efficiency. In order to improve the stability of the cylinder body, an outer cylinder 6 is also sleeved outside the inner cylinder 7 to avoid direct contact with other components when the inner cylinder rotates, thereby further ensuring the safety of the device.

[0059] In this example, see Figure 1 , Figure 4 and Figure 5 The cylinder support assembly includes a rod seat 25, a support rod 27 and a driving member 29. The two rod seats 25 are coaxially arranged on both sides of the pipe rack base 1, and the two rod seats 25 are rotatably connected with a round rod 26; the two support rods 27 are arranged on the round rod 26 at intervals, and the support rods 27 are provided with support rollers 28, and the support rollers 28 are connected to the outer cylinder 6; the driving member 29 is arranged on one side of the pipe rack base, and the output end is connected to one end of the support rod 27.

[0060] It should be noted that the driving member 29 is a cylinder, and the output end of the cylinder is rotatably connected to a crank 30, which is arranged at one end of the support rod 27. When the sensing block 12 at the bottom of the power vehicle blocks the three photoelectric sensors 11 in the middle, the cylinder is ventilated, and the output end drives the crank 30 forward to rotate, thereby driving the round rod 26 to rotate, so that the support rod 27 falls down, otherwise it stands up, ensuring that the cylinder body has multiple sections of support during operation without affecting the operation of the power vehicle.

[0061] It should be noted that in this embodiment, the motor and other components are all controlled by the control system, that is, the travel motor 17, the photoelectric sensor 11, the power motor 20 and other power components are all electrically connected to the control system, so that the device can be automatically controlled.

[0062] Specifically, the present invention includes the following steps when implemented:

[0063] 1. Installation: Install the device in the middle of the material pipe rack, remove rust from the outer wall of the oil pipe 5 → material pipe rack → remove rust and scale from the inner wall → material pipe rack.

[0064] 2. Working: The travel motor 17 transmits power to the shaft 15, the travel gear 18, the chain 19 and the travel pulley 16 to drive the power trolley forward or backward along the track 2; when the induction block 12 at the bottom of the power trolley blocks the three photoelectric sensors 11 in the middle, the cylinder is ventilated and retracted to drive the support rod 27 to fall down or stand up. When the front sensor is blocked, the operating table stops for 10 seconds and the oil pipe 5 is unloaded after the descaling is completed and the oil pipe 5 to be operated is loaded and then continues to move forward; the last sensor When the responder is blocked, the operating table stops for 5 seconds and waits for the steel brush 8 to completely pass through the oil pipe 5 before continuing to move backwards. The power motor 20 drives the reducer 21, the coupling and the gear box 22 to drive the gear 23 to rotate, thereby driving the driven gears 24 on both sides of the gear box 22 to rotate. At the same time, the water pipe 9 supplies water to the inner cylinder 7, so that the inner cylinder 7 and the steel brush 8 continue to rotate when the power trolley moves forward or backward to complete the brushing operation of the inner wall of the oil pipe 5; at the same time, the cable and the water pipe 9 are placed in the movable wire trough for easy movement with the power trolley.

[0065] The technical solution adopted by the utility model fundamentally solves the problem that the device realizes the function of automatically removing rust and scale from the inner wall of the oil pipe 5, and has the following beneficial effects:

[0066] 1. Practical and adaptable: It is suitable for rust and scale removal on the inner wall of production oil pipe 5. It can be integrated into the automatic cleaning machine or used alone;

[0067] 2. Safe and efficient: The operation is automated through sensors and control systems, and the operator only needs to perform normal care;

[0068] 3. Environmental protection: The device is equipped with a liquid storage tank 3, which is specially used to collect sewage generated during the operation.

[0069] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the solutions disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. An automatic rust and scale removal device for the inner wall of a production oil pipe, characterized in that: include: A pipe rack base, on which a track is arranged, a liquid storage tank is arranged at one end of the pipe rack base, two groups of bayonet holes are arranged on opposite sides of the liquid storage tank, and one group of bayonet holes is connected with an oil pipe; The speed reduction drive assembly is arranged on the other end of the pipe rack base opposite to the liquid storage tank and is located on the track; At least two outer cylinders are provided on the reduction drive assembly and pass through another set of bayonet holes on the liquid storage tank, and the outer diameter of the outer cylinder is smaller than the inner diameter of the oil pipe; At least two inner cylinders are connected to the output end of the reduction drive assembly and arranged in the outer cylinder. The inner cylinder is hollow inside and is provided with a through hole at the end away from the reduction drive assembly. A steel brush is also provided at one end of the inner cylinder located in the liquid storage tank. A plurality of cylinder support assemblies are rotatably connected to the pipe rack base and arranged at intervals, and the top ends of the cylinder support assemblies abut against the outer cylinder; The power trolley is arranged at the bottom of the reduction drive assembly and abuts against the track; The water pipe is arranged on the reduction drive assembly and is connected with the inner cylinder.

2. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 1 is characterized in that: A fixing frame is also provided on the pipe rack base, a plurality of photoelectric sensors are arranged at intervals on the fixing frame, and a sensing block is provided on a side of the power trolley close to the fixing frame.

3. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 1 is characterized in that: The power vehicle comprises: Bottom plate, two sets of limit blocks are arranged at the lower end of the bottom plate; The shaft rod is clamped on the limit block and extends to both sides; Two travel pulleys are arranged on both sides of the shaft and connected to the track; The travel motor is arranged on one side of the base plate, and an output end is connected with a shaft rod.

4. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 3 is characterized in that: The shaft rod is also provided with a travel gear, and a chain is arranged on the outer sleeve of the travel gear.

5. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 1 is characterized in that: The reduction drive assembly comprises: The power motor is arranged at the upper end of the power trolley; A reducer is provided at the output end of the power motor; The gear box is arranged at the upper end of the power trolley, and a driving gear and two driven gears are rotatably connected inside. The driving gear is connected to the output end of the reducer, the driven gear shaft is hollow, and the driven gear is clamped with the inner cylinder.

6. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 1 is characterized in that: The cylinder support assembly comprises: Two rod seats are coaxially arranged on both sides of the pipe rack base, and round rods are rotatably connected in the two rod seats; Two support rods are arranged on the round rod at intervals, and support rollers are provided on the support rods, and the support rollers are connected to the outer cylinder; The driving member is arranged on one side of the pipe rack base, and the output end is connected to one end of the supporting rod.

7. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 6 is characterized in that: The driving member is a cylinder, and the output end of the cylinder is rotatably connected to a crank, which is arranged at one end of the support rod.

8. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 1 is characterized in that: Two groups of roller assemblies are also provided on the liquid storage box. The roller assemblies are arranged outside the bayonet on the side facing the reduction drive assembly and abut against the outer cylinder.

9. The automatic rust and scale removal device for the inner wall of a production oil pipe according to claim 1, characterized in that: A flexible movable wire trough is also provided on one side of the pipe rack base. The flexible movable wire trough is fixed by a plurality of wire trough brackets and is extended and arranged on the ground.

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