An explosion-proof self-propelled pig launcher and receiver vehicle

Abstract

The present invention discloses an explosion-proof self-propelled pig launcher and receiver vehicle, which includes a vehicle body mechanism. Above the vehicle body mechanism, a pig launcher and receiver mechanism is provided. Below the vehicle body mechanism, a traveling mechanism is provided. A hydraulic system and an electric control system are also provided on the vehicle body mechanism. The electric control system is used to control the hydraulic system, and the hydraulic system is used to provide hydraulic power for the traveling mechanism and the pig launcher and receiver mechanism. The structure of the present invention is compact, replacing manual labor with machinery, improving the detection and cleaning efficiency of pipelines, and at the same time increasing the safety factor during the entire detection and cleaning process.

Description

Technical Field

[0001] The present invention relates to a pigging device for in-line inspection of pipelines, especially an explosion-proof self-propelled pig launcher and receiver vehicle. Background Art

[0002] Fossil energy such as petroleum and natural gas is generally transported through pipelines. Steel pipelines are prone to internal and external wall corrosion or the generation of sediment impurities that hinder the pipelines after long-term use. Blocked or corroded pipelines are prone to leakage of transported substances under the action of internal pressure, and in severe cases, explosions may occur. To ensure the safe production of long-distance energy pipelines, the pipelines need to be regularly inspected and cleaned internally. The current mainstream technology is to place in-line inspectors and pigging devices with capabilities such as magnetic flux leakage detection and ultrasonic detection into the pipelines for non-destructive detection and cleaning. In the industry, such cylindrical devices as in-line inspectors and pigging devices are commonly referred to as balls. At present, since it is necessary to rely on large cranes and the cooperation of multiple people to complete the process of putting the balls into the pipelines, and most of the petroleum and natural gas transportation stations are on soft backfilled ground, it is difficult for construction machinery such as large cranes and forklifts to operate and move within the stations. Completing this process takes a long time and has extremely low efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problems in the above-mentioned prior art such as the need for the cooperation of multiple people and low efficiency, and provide an explosion-proof self-propelled pig launcher and receiver vehicle. The structure of the present invention is compact, which replaces manual labor with machinery, improves the inspection and cleaning efficiency of pipelines, and also increases the safety factor during the inspection and cleaning process.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] An explosion-proof self-propelled pig launcher and receiver vehicle, characterized in that: it includes a vehicle body mechanism, a pig launcher and receiver mechanism is arranged above the vehicle body mechanism, a traveling mechanism is arranged below the vehicle body mechanism, and a hydraulic system and an electric control system are also arranged on the vehicle body mechanism; the electric control system is used to control the hydraulic system, and the hydraulic system is used to provide hydraulic power for the traveling mechanism and the pig launcher and receiver mechanism.

[0006] Preferably, the vehicle body mechanism includes a vehicle body main body with an arc-shaped cross-section, and a bottom support frame evenly supports the bottom of the vehicle body main body with an arc-shaped cross-section. The vehicle body main body with an arc-shaped cross-section is respectively connected to a front hydraulic rod connecting seat, a rear hydraulic rod connecting seat, and an intermediate connecting seat.

[0007] Preferably, the traveling mechanism includes a front axle and a rear axle. The front axle is composed of a double-wishbone independent suspension and front wheels connected to both ends thereof; the rear axle is composed of a rear axle, rear wheels connected to both ends of the rear axle, and a trailing arm type rear suspension; one end of the trailing arm type rear suspension is connected to the rear axle, and the other end is provided with an intermediate connecting seat.

[0008] Preferably, the hydraulic system includes a hydraulic station disposed at the bottom of the arc-sectioned vehicle body; a hydraulic motor with a differential disposed on the rear axle; a front lifting hydraulic rod with one end connected to the front axle and the other end connected to the front hydraulic rod connecting seat; a rear lifting hydraulic rod with one end connected to the rear axle and the other end connected to the rear hydraulic rod connecting seat; and the hydraulic station is controllably connected to the hydraulic motor with a differential, the front lifting hydraulic rod, and the rear lifting hydraulic rod.

[0009] Preferably, the hydraulic system further includes a front steering hydraulic rod, which is mounted on the arc-sectioned vehicle body through a mounting seat and connected to a front wheel connecting seat on the front wheel; and the front steering hydraulic rod is controllably connected to the hydraulic station.

[0010] Preferably, a fuel tank, a hydraulic pump, an electromagnetic directional valve group, and a DC motor are disposed inside the hydraulic station. The fuel tank outputs hydraulic oil through the hydraulic pump controlled by the DC motor and provides hydraulic power to the telescopic hydraulic rod, or the hydraulic motor with a differential, or the front lifting hydraulic rod, or the rear lifting hydraulic rod, or the front steering hydraulic rod through the electromagnetic directional valve group.

[0011] Preferably, the electric control system is a fully enclosed electric control box disposed on the arc-sectioned vehicle body.

[0012] Preferably, a battery and a PLC are disposed inside the fully enclosed electric control box; the battery is used to provide power for the PLC, the DC motor, and the electromagnetic directional valve group; and the PLC controls the start and stop of the DC motor and the on-off of the electromagnetic steering valve group inside the hydraulic station.

[0013] Preferably, the PLC is connected to a remote control system through an external control line.

[0014] Preferably, the front wheel and / or the rear wheel is / are wheels with brakes.

[0015] Preferably, the ball receiving and sending mechanism includes a ball receiving and sending support seat disposed on the arc-sectioned vehicle body and connected to the horizontal sliders on both sides of the arc top. An extensible hydraulic rod mounting slider that can slide up and down through a vertical track is disposed on the ball receiving and sending support seat, and the extensible hydraulic rod passes through and is disposed on the ball receiving and sending support seat and the extensible hydraulic rod mounting slider.

[0016] Preferably, limiting bolt holes for adjusting the axial position of the ball receiving and sending support seat on the arc-sectioned vehicle body are disposed on both sides of the arc-sectioned vehicle body.

[0017] After adopting the above structure, the advantages of the present invention compared with the prior art are as follows: With the present invention, spherical devices such as internal detectors and pigging devices for long-distance pipelines of oil, natural gas, etc. can be sent into or pulled out. The structure is compact and reasonable. By setting and controlling the traveling mechanism, the transfer problem of the equipment can be effectively solved, avoiding the problem of the need for large-scale equipment to participate in hoisting in the prior art, and it can also meet and adapt to the land and road environments where different pipelines are located; The setting of the lifting hydraulic rod in the hydraulic system, the horizontal slider in the pigging and launching mechanism, the installation slide seat of the telescopic hydraulic rod and the telescopic hydraulic rod can meet the requirements of different calibers and types of balls (pipeline detectors, pigging devices), and can also cope with complex pipelines, greatly improving the detection and pigging efficiency; At the same time, by operating the PLC to control the hydraulic mechanism, the whole process of detection and pigging can be realized automatically, replacing manual labor with machinery and liberating the labor force of workers. Description of the Drawings

[0018] Figure 1: Three-dimensional structure diagram of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0019] Figure 2 : Partial bottom view structure diagram of the arc-section vehicle body main body of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0020] Figure 3 : Front view structure diagram of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0021] Figure 4 : Partial three-dimensional structure diagram of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0022] Figure 5 : Partial structure diagram of the front wheels of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0023] Figure 6 : Partial structure diagram of the rear wheels of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0024] Figure 7 : Control circuit diagram of the hydraulic system and the electric control system of the explosion-proof self-propelled pigging and launching vehicle of the present invention.

[0025] In the figure: 1 - vehicle body mechanism, 2 - ball receiving and sending mechanism, 3 - traveling mechanism, 4 - hydraulic system, 5 - electric control system, 6 - arc-section vehicle body main body, 7 - bottom support frame, 8 - front hydraulic rod connecting seat, 9 - rear hydraulic connecting seat, 10 - intermediate connecting seat, 11 - horizontal slider, 12 - ball receiving and sending support seat, 13 - telescopic hydraulic rod mounting slider, 14 - vertical track, 15 - telescopic hydraulic rod, 16 - front wheel, 17 - rear wheel, 18 - front axle, 19 - double-wishbone independent suspension, 20 - rear axle, 21 - longitudinal arm rear suspension, 22 - rear shaft, 23 - hydraulic station, 24 - hydraulic motor with differential, 25 - front lifting hydraulic rod, 26 - rear lifting hydraulic rod, 27 - front steering hydraulic rod, 28 - front wheel connecting seat, 29 - fuel tank, 30 - hydraulic pump, 31 - electromagnetic steering valve group, 32 - DC motor, 33 - fully enclosed electric control box, 34 - battery, 35 - PLC, 36 - remote control system, 37 - limit bolt hole, 38 - mounting seat. Detailed implementation mode

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figure 1 shown, the present invention discloses an explosion-proof self-propelled ball receiving and sending vehicle, which is characterized in that it includes a vehicle body mechanism 1, a ball receiving and sending mechanism 2 is arranged above the vehicle body mechanism 1, a traveling mechanism 3 is arranged below the vehicle body mechanism 1, and a hydraulic system 4 and an electric control system 5 are also arranged on the vehicle body mechanism 1; the electric control system 5 is used to control the hydraulic system 4, and the hydraulic system 4 is used to provide hydraulic power for the traveling mechanism 3 and the ball receiving and sending mechanism 2. Based on this, it can be seen that the structure of the present invention is compact and the layout is reasonable.

[0028] As Figure 2 , Figure 3 , Figure 4As shown in the figure, in the present invention, the vehicle body mechanism 1 includes a vehicle body main body 6 with an arc-shaped cross-section. The bottom support frame 7 is evenly supported at the bottom of the vehicle body main body 6 with an arc-shaped cross-section. The vehicle body main body 6 with an arc-shaped cross-section is respectively connected to the front hydraulic rod connecting seat 8, the rear hydraulic rod connecting seat 9, and the middle connecting seat 10. Based on this, the vehicle body main body is provided with an arc-shaped cross-section, which is convenient for the movement of the ball receiving and serving support seat 12 in the axial position; the bottom support frame 7 is evenly supported at the bottom of the vehicle body main body 6 with an arc-shaped cross-section, which increases the bearing capacity of the vehicle body main body 6 with an arc-shaped cross-section; and the settings of the front hydraulic rod connecting seat 8, the rear hydraulic rod connecting seat 9, and the middle connecting seat 10 enable the front section, middle section, and rear section of the vehicle body main body 6 with an arc-shaped cross-section to all obtain support and contribute to the action of the hydraulic system 4 on the vehicle body mechanism 1.

[0029] As Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown in the figure, in the present invention, the traveling mechanism 3 includes a front axle 18 and a rear axle 20. The front axle 18 is composed of a double-wishbone independent suspension 19 and front wheels 16 connected to both ends thereof; the rear axle 20 is composed of a rear axle 22, rear wheels 17 connected to both ends of the rear axle 22, and a trailing arm rear suspension 21; one end of the trailing arm rear suspension 21 is connected to the rear axle 22, and the other end is provided with a middle connecting seat 10. Based on this, the present invention can realize the forward and backward movement of the vehicle body during pipeline inspection and pigging by setting the traveling mechanism, avoiding the use of large lifting equipment and being able to meet and adapt to the environments where different pipelines are located.

[0030] As Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown in the figure, in the present invention, the hydraulic system 4 includes a hydraulic station 23 provided at the bottom of the vehicle body main body 6 with an arc-shaped cross-section; a hydraulic motor 24 with a differential provided on the rear axle 20; a front lifting hydraulic rod 25 with one end connected to the front axle 18 and the other end connected to the front hydraulic rod connecting seat 8; a rear lifting hydraulic rod 26 with one end connected to the rear axle 20 and the other end connected to the rear hydraulic rod connecting seat 9; the hydraulic station 23 is controllably connected to the hydraulic motor 24 with a differential, the front lifting hydraulic rod 25, and the rear lifting hydraulic rod 26. Based on this, the hydraulic station 23 is installed and fixed at the bottom of the vehicle body 6 with an arc-shaped cross-section by bolts, and the hydraulic motor 24 with a differential provided on the rear axle 20 can provide power for the traveling mechanism 3 to realize rear-wheel drive; the front lifting hydraulic rod 25 is provided on the double-wishbone independent suspension 19 in the front axle 18, and the rear lifting hydraulic rod 26 is connected to the rear axle 22 on the rear axle 20. The two are used to realize the adjustment of the height of the serving vehicle body, meet the top movement or pulling of balls (pipeline detectors, pigging tools) with different diameters and types, and can also be applicable to different terrains and pipelines with different height settings.

[0031] As Figure 4 , Figure 5 , Figure 7 shown, in the present invention, the hydraulic system 4 further includes a front steering hydraulic rod 27, and the front steering hydraulic rod 27 is installed on the arc-section body 6 through a mounting seat 38 and is connected to a front wheel connecting seat 28 on the front wheel 16; the front steering hydraulic rod 27 is controllably connected to the hydraulic station 23. Based on this, the function of front-wheel steering can be realized, making the transfer of the vehicle body more convenient and flexible.

[0032] As Figure 7 shown, in the present invention, inside the hydraulic station 23, there are arranged an oil tank 29, a hydraulic pump 30, an electromagnetic directional valve group 31, and a DC motor 32; the oil tank 29 outputs hydraulic oil through the hydraulic pump 30 controlled by the DC motor 32, and provides hydraulic power to the telescopic hydraulic rod 15, or the hydraulic motor 24 with a differential, or the front lifting hydraulic rod 25, or the rear lifting hydraulic rod 26, or the front steering hydraulic rod 27 through the electromagnetic directional valve group 31. Based on this, the electromagnetic directional valve group 31 can select the "Rexroth 4WE6E626H6J6GEG24" switching direction valve, and by using this kind of switching direction valve, it can be used to control the supply of hydraulic power to the telescopic hydraulic rod 15, or the hydraulic motor 24 with a differential, or the front lifting hydraulic rod 25, or the rear lifting hydraulic rod 26, or the front steering hydraulic rod 27 as needed.

[0033] As Figure 7 shown, in the present invention, the electric control system 5 is a fully enclosed electric control box 33 arranged on the arc-section body 6. Based on this, the setting of the fully enclosed electric control box 33 helps to protect the electric control system.

[0034] As Figure 7 shown, in the present invention, inside the fully enclosed electric control box 33, there are arranged a battery 34 and a PLC 35; the battery 34 is used to provide power for the PLC 35, the DC motor 32, and the electromagnetic directional valve group 31; the PLC 35 controls the start and stop of the DC motor 32 and the on-off of the electromagnetic steering valve group 31 inside the hydraulic station 23. The PLC 35 is connected to the remote control system 36 through an external control line. Based on this, the battery in the fully enclosed electric control box 33 mostly uses lead-acid batteries and serves as the power source of the equipment to provide power for the PLC 35, the DC motor 32, and the electromagnetic directional valve group 31; the central control PLC can select "Siemens S7-200CN", and at the same time, the central control PLC can also be connected to the remote control system 36 (such as a handheld remote control) through an external control line. On the handheld remote control, there can be set a forward and reverse switch and a speed control knob for the hydraulic motor, a direction control knob, a height control knob, and a telescopic start and stop knob for the telescopic hydraulic rod on the ball serving and receiving mechanism.

[0035] As Figure 3 ,Figure 4 As shown, in the present invention, the front wheel 16 and / or the rear wheel 17 are wheels with brakes. Based on this, by using wheels with brakes, it is possible to prevent the vehicle body from moving forward or backward during the serving and receiving process, reducing the occurrence of risks.

[0036] As Figure 3 , Figure 4 As shown, in the present invention, the serving and receiving mechanism 2 includes a serving and receiving support seat 12 disposed on the arc-shaped cross-section vehicle body 6 and connected to the horizontal sliders 11 on both sides of the arc top. On the serving and receiving support seat 12, there is a telescopic hydraulic rod mounting slider 13 that can slide up and down through the vertical track 14, and the telescopic hydraulic rod 15 passes through and is disposed on the serving and receiving support seat 12 and the telescopic hydraulic rod mounting slider 13. Based on this, in the present invention, when serving and receiving, the ball (pipeline detector, pig) can be pushed or pulled by the telescopic hydraulic rod 15; the setting of the horizontal slider 11 makes it more convenient for the serving and receiving support seat 12 to axially move on the arc-shaped cross-section vehicle body 6; and by sliding the telescopic hydraulic rod mounting slider 13 up and down on the vertical track 14, it can meet the requirement of pushing or pulling balls (pipeline detectors, pigs) of different models and sizes, greatly improving the working efficiency.

[0037] As Figure 1 , Figure 2 As shown, in the present invention, limit bolt holes 37 for adjusting the axial position of the serving and receiving support seat 12 on the arc-shaped cross-section vehicle body 6 are provided on both sides of the arc-shaped cross-section vehicle body 6. Based on this, the limit bolt holes 37 can adjust and limit the axial movement position of the serving and receiving support seat 12 on the arc-shaped cross-section vehicle body 6, facilitating adaptation to the requirements of complex pipelines.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof self-propelled pig launcher and receiver vehicle, characterized in that: It includes a vehicle body mechanism (1), above which a ball collecting and serving mechanism (2) is provided, and below which a traveling mechanism (3) is provided. A hydraulic system (4) and an electric control system (5) are also provided on the vehicle body mechanism (1); the electric control system (5) is used to control the hydraulic system (4), and the hydraulic system (4) is used to provide hydraulic power for the traveling mechanism (3) and the ball collecting and serving mechanism (2). The ball collecting and serving mechanism (2) includes a ball collecting and serving support seat (12) arranged on a vehicle body main body (6) with an arc-shaped cross-section and connected to horizontal sliders (11) on both sides of the apex of the arc-shaped cross-section of the vehicle body main body. On the ball collecting and serving support seat (12), a telescopic hydraulic rod mounting slider (13) that slides up and down through a vertical track (14) is provided, and a telescopic hydraulic rod (15) passes through and is arranged on the ball collecting and serving support seat (12) and the telescopic hydraulic rod mounting slider (13). The vehicle body main body (6) with an arc-shaped cross-section is respectively connected to a front hydraulic rod connecting seat (8), a rear hydraulic rod connecting seat (9), and an intermediate connecting seat (10). The traveling mechanism (3) includes a front axle (18) and a rear axle (20). The front axle (18) is composed of a double-wishbone independent suspension (19) and front wheels (16) connected to both ends thereof; the rear axle (20) is composed of a rear axle (22), rear wheels (17) connected to both ends of the rear axle (22), and a trailing arm rear suspension (21); one end of the trailing arm rear suspension (21) is connected to the rear axle (22), and the other end is arranged on the intermediate connecting seat (10). The hydraulic system (4) includes a hydraulic station (23) arranged at the bottom of the vehicle body main body (6) with an arc-shaped cross-section, a hydraulic motor with a differential arranged on the rear axle (20), a front lifting hydraulic rod (25) with one end connected to the front axle (18) and the other end connected to the front hydraulic rod connecting seat (8), and a rear lifting hydraulic rod (26) with one end connected to the rear axle (20) and the other end connected to the rear hydraulic rod connecting seat (9); the hydraulic station (23) is controllably connected to the hydraulic motor with a differential (24), the front lifting hydraulic rod (25), and the rear lifting hydraulic rod (26). The hydraulic system (4) further includes a front steering hydraulic rod (27). The front steering hydraulic rod (27) is installed on the vehicle body main body (6) with an arc-shaped cross-section through a mounting seat (38) and is connected to a front wheel connecting seat (28) on the front wheel (16); the front steering hydraulic rod (27) is controllably connected to the hydraulic station (23). Inside the hydraulic station (23), there are a fuel tank (29), a hydraulic pump (30), an electromagnetic reversing valve group (31), and a DC motor (32); the fuel tank (29) outputs hydraulic oil through the hydraulic pump (30) controlled by the DC motor (32) and provides hydraulic power to the telescopic hydraulic rod (15), or the hydraulic motor with a differential (24), or the front lifting hydraulic rod (25), or the rear lifting hydraulic rod (26), or the front steering hydraulic rod (27) through the electromagnetic reversing valve group (31).

2. The explosion-proof self-propelled pig launcher and receiver vehicle according to claim 1, characterized in that: Limit bolt holes (37) for adjusting the axial position of the receiving and sending ball support seats (12) are provided on both sides of the arc-section vehicle body main body (6); the vehicle body mechanism (1) includes the arc-section vehicle body main body (6), and the bottom support frame (7) is uniformly supported at the bottom of the arc-section vehicle body main body (6).

3. An explosion-proof self-propelled pig launcher and receiver vehicle according to claim 1, characterized in that: The electric control system (5) is a fully enclosed electric control box (33) provided on the arc-section vehicle body main body (6).

4. An explosion-proof self-propelled pig launcher and receiver vehicle according to claim 3, wherein: A battery (34) and a PLC (35) are arranged inside the fully enclosed electric control box (33); the battery (34) is used to supply power to the PLC (35), the DC motor (32) and the electromagnetic reversing valve group (31); the PLC (35) controls the start and stop of the DC motor (32) and the on-off of the electromagnetic reversing valve group (31) in the hydraulic station (23).

5. The explosion-proof self-propelled pig launcher and receiver vehicle according to claim 4, wherein: The PLC (35) is connected to the remote control system (36) through an external control line.

6. An explosion-proof self-propelled pig launcher and receiver vehicle according to any one of claims 1-5, characterized in that: The front wheels (16) and / or the rear wheels (17) are wheels with brakes.

Images