Pipe-through device and pipe-through method inside pipe pushing

Abstract

The present application relates to the technical field of pipeline installation, and particularly relates to a pipe penetrating device and a pipe penetrating method in pipe jacking, which aims to solve the technical problems of the existing pipe penetrating mode, such as damaging the original anticorrosion and heat preservation layer of the inner pipe and wasting resources. The pipe penetrating device comprises an electromagnetic module, a trolley and a controller. The electromagnetic module has two groups of magnetic poles with variable directions. In the two groups of electromagnetic modules, one magnetic pole of one group is connected with the trolley, and one magnetic pole of the other group is used to be connected with the inner pipe, so as to magnetize the trolley and the inner pipe respectively. The controller is electrically connected with the electromagnetic module, and is used to control the magnetic pole direction and the magnetic force of the electromagnetic module. Through the pipe penetrating device, the original anticorrosion and heat preservation layer of the inner pipe is protected, and the trolley is recycled, so that resources are saved, the large-scale and long-distance pipe penetrating steel pipe can be completed with high quality and high efficiency, and only the power supply is used, so that the one-time investment can be used permanently, and a large amount of labor and turnover materials are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline installation, and in particular to a pipe penetration device and a pipe penetration method in a top pipe. Background Art

[0002] With the development of the times, the number of large-scale, long-distance heat network projects, oil transportation projects, water supply projects, and other pipe jacking construction projects is increasing. Taking the heat supply network as an example, the number of crossing projects such as roads and railways is gradually increasing, and the length of crossing in some parts is relatively long. During pipe jacking construction, after the casing is pushed in, the inner pipe needs to be inserted into the casing. The specific method is to place the inner pipe on an arc-shaped pulley with rollers, and then use a winch to drag the inner pipes one by one to the target position in the casing. It should be pointed out that the above-mentioned pipe threading method has the following shortcomings:

[0003] First, sliding friction will be generated between the inner pipe and the pulley during transportation, which will damage the original anti-corrosion and insulation layer of the inner pipe; second, due to the long crossing distance and the heavy accumulated weight of the inner pipe, the resistance to pipe penetration is large, and a large number of pulleys are required, which are non-recyclable, resulting in waste of resources. Summary of the Invention

[0004] The purpose of the present invention is to provide a pipe penetration device and a pipe penetration method for a top pipe, so as to solve the technical problems of the existing pipe penetration method in that the original anti-corrosion and insulation layer of the inner pipe is destroyed and resources are wasted.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0006] A pipe threading device, comprising: an electromagnetic module, a pulley and a controller;

[0007] The electromagnetic module has two magnetic poles with variable directions, and is provided in two groups. In the two groups of electromagnetic modules, one magnetic pole of one group is connected to the pulley, and one magnetic pole of the other group is used to connect to the inner tube, so as to magnetize the pulley and the inner tube respectively.

[0008] The controller is electrically connected to the electromagnetic module and is used to control the magnetic pole direction and magnetic force of the electromagnetic module.

[0009] Furthermore, the electromagnetic module includes a horseshoe-shaped iron core and a coil;

[0010] The coil is wound around the horseshoe-shaped iron core and is connected to the controller via a control cable.

[0011] Furthermore, the electromagnetic module further includes a magnetic conductor;

[0012] The magnetic conductor is connected to the horseshoe-shaped iron core and is used to be connected to the pulley or the inner tube.

[0013] Furthermore, the pulley includes a slider, a roller and an IR sensor;

[0014] The slider is used to support the inner tube;

[0015] The roller is arranged at the bottom of the slider and is rotatably connected to the slider;

[0016] The IR sensor is arranged on the top of the slider and is connected to the controller signal.

[0017] Furthermore, the pulley also includes a protective pad, which is laid on the top of the slider.

[0018] Furthermore, the pulley is provided in plurality, and the plurality of pulleys are distributed in an array;

[0019] Adjacent pulleys are connected via hinges.

[0020] Furthermore, the hinged member includes a universal wheel arc and a connecting rod;

[0021] The universal wheel arc is hinged to the connecting rod, and one of the universal wheel arc and the connecting rod is fixed to the sliding block.

[0022] Furthermore, the universal wheel arc is fixed to the slider;

[0023] The connecting rod includes a connecting section and a ball joint section integrally formed with the connecting section, and the ball joint section is embedded in the universal wheel arc.

[0024] A method for threading a pipe in a jacking pipe, using a pipe threading device, comprises the following steps:

[0025] When conveying the inner tube, start the first stepless regulating switch on the controller so that the upper part of the horseshoe-shaped iron core on the inner tube line is the N pole, and the lower part connected to the inner tube is the S pole;

[0026] Start the second stepless regulating switch on the controller so that the upper part of the horseshoe-shaped iron core on the pulley line is the S pole and the lower part connected to the slider is the N pole;

[0027] After the inner tube is delivered to the right place, adjust the first stepless regulating switch on the controller so that the upper part of the horseshoe-shaped iron core on the inner tube line is the S pole, and the lower part connected to the inner tube is the N pole;

[0028] Or adjust the second stepless regulating switch on the controller so that the upper part of the horseshoe-shaped iron core on the pulley line is the N pole and the lower part connected to the slider is the S pole.

[0029] Furthermore, when the horseshoe-shaped iron core is magnetized, the first stepless regulating switch or the second stepless regulating switch is adjusted to adjust the magnitude of the current flowing through the coil.

[0030] Based on the above technical solutions, the technical effects achieved by the present invention are:

[0031] The pipe threading device provided by the present invention includes an electromagnetic module, a pulley and a controller; the electromagnetic module has two magnetic poles with changeable directions, and is provided with two groups. In the two groups of electromagnetic modules, one magnetic pole of one group is connected to the pulley, and one magnetic pole of the other group is used to connect to the inner tube, so as to magnetize the pulley and the inner tube respectively; the controller is electrically connected to the electromagnetic module, and is used to control the magnetic pole direction and magnetic force of the electromagnetic module.

[0032] In the present application, two groups of electromagnetic modules are respectively used to connect to the circuit where the pulley is located and the circuit where the inner tube is located to realize the magnetization of the pulley and the inner tube; through the controller, the electromagnetic modules can form N poles and S poles, wherein the N pole or S pole of one group of electromagnetic modules is connected to the pulley, even if the pulley is an N pole or S pole, and the N pole or S pole of the other group of electromagnetic modules is connected to the inner tube, even if the entire outer surface of the inner tube is an N pole or S pole.

[0033] Specifically, when transporting the inner tube, the controller can be used to adjust the N pole of one group of electromagnetic modules to be connected to the pulley so that the pulley as a whole is the N pole, and the S pole of another group of electromagnetic modules can be adjusted to be connected to the inner tube so that the outer surface of the inner tube as a whole is the S pole. At this time, the pulley and the inner tube are in close contact under the action of magnetic force. In this way, when the winch drags the pulley, relative displacement between the inner tube and the pulley is avoided, thereby achieving protection of the anti-corrosion and thermal insulation layer outside the inner tube; when the inner tube is transported to the specified coordinate point, the controller can be used to adjust the magnetic pole direction of the electromagnetic module connected to the pulley so that the magnetic pole connected to the electromagnetic module and the pulley is the S pole. In this way, the pulley as a whole is the S pole. According to the working principle of magnetic levitation, the pulley and the inner tube repel each other under the action of magnetic force, and the two are separated. At this time, the winch can pull the pulley and take it out of the working well. The pulley gradually separates from the inner tube. The inner tube has a certain flexibility and relies on its own weight. It will slowly fall to the ground during the separation process until it is completely separated from the pulley.

[0034] It can be seen that compared with the existing technology, the pipe threading device utilizes the working principle of magnetic levitation, realizes the protection of the original anti-corrosion and insulation layer of the inner pipe, and the recovery of the pulley, saves resources, and can achieve high-quality and high-efficiency completion of steel pipes in large and long-distance pipelines. It only relies on power supply, and can achieve permanent use with a one-time investment, saving a lot of labor and turnover materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of an application of the pipe threading device provided in an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of a pulley of a pipe threading device provided in an embodiment of the present invention;

[0038] Figure 3 Schematic diagram of the application of the pulley of the pipe threading device provided in an embodiment of the present invention.

[0039] Icon: 100-electromagnetic module; 110-horse-shoe iron core; 120-coil; 130-magnetic conductor;

[0040] 200-Pulley; 210-Slider; 220-Roller; 230-IR Sensor; 240-Protective Pad;

[0041] 300-controller; 310-first stepless regulating switch; 320-second stepless regulating switch;

[0042] 400-inner tube;

[0043] 500- hinge; 510- universal wheel arc; 520- connecting rod;

[0044] 600-Casing. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0047] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0048] The existing pipe threading method has the following shortcomings: First, sliding friction will be generated between the inner pipe and the pulley during transportation, which will damage the original anti-corrosion and insulation layer of the inner pipe; second, due to the long crossing distance and the heavy accumulated weight of the inner pipe, the pipe threading resistance is large, and a large number of pulleys are required, which are non-recyclable, resulting in a waste of resources.

[0049] In view of this, the present invention provides a pipe threading device, including an electromagnetic module 100, a pulley 200 and a controller 300; the electromagnetic module 100 has two magnetic poles with changeable directions, and is provided with two groups, and in the two groups of electromagnetic modules 100, one of the magnetic poles of one group is connected to the pulley 200, and one of the magnetic poles of the other group is used to connect to the inner tube 400, so as to magnetize the pulley 200 and the inner tube 400 respectively; the controller 300 is electrically connected to the electromagnetic module 100, and is used to control the magnetic pole direction and magnetic force of the electromagnetic module 100.

[0050] refer to Figure 1 The two groups of electromagnetic modules 100 are respectively used to connect to the circuit where the pulley 200 is located and the circuit where the inner tube 400 is located, so as to realize the magnetization of the pulley 200 and the inner tube 400; through the controller 300, the electromagnetic modules 100 can form N poles and S poles, wherein the N pole or S pole of one group of electromagnetic modules 100 is connected to the pulley 200, even if the pulley 200 is the N pole or S pole, and the N pole or S pole of the other group of electromagnetic modules 100 is connected to the inner tube 400, even if the outer surface of the inner tube 400 as a whole is the N pole or S pole.

[0051] Specifically, when transporting the inner tube 400, the controller 300 can be used to adjust the N pole of one group of electromagnetic modules 100 to be connected to the pulley 200, so that the pulley 200 is the N pole as a whole, and the S pole of another group of electromagnetic modules 100 can be adjusted to be connected to the inner tube 400, so that the outer surface of the inner tube 400 is the S pole as a whole. At this time, the pulley 200 and the inner tube 400 are in close contact under the action of magnetic force. In this way, when the winch drags the pulley 200, the relative displacement between the inner tube 400 and the pulley 200 is avoided, and the outer anti-corrosion insulation layer of the inner tube 400 is protected; when the inner tube 400 is transported to the designated coordinate point, The magnetic pole direction of the electromagnetic module 100 connected to the pulley 200 can be adjusted through the controller 300 so that the magnetic pole connecting the electromagnetic module 100 and the pulley 200 is the S pole. In this way, the pulley 200 as a whole is the S pole. According to the working principle of magnetic levitation, the pulley 200 and the inner tube 400 repel each other under the action of magnetic force, and the two are separated. At this time, the winch can pull the pulley 200 and take it out of the working well. The pulley 200 is gradually separated from the inner tube 400. The inner tube 400 has a certain flexibility and relies on its own weight to slowly fall to the ground during the separation process until it is completely separated from the pulley 200.

[0052] It can be seen that compared with the existing technology, the pipe threading device utilizes the working principle of magnetic levitation, realizes the protection of the original anti-corrosion and insulation layer of the inner pipe 400, and the recovery of the pulley 200, saves resources, and can achieve high-quality and high-efficiency completion of steel pipe threading in large and long-distance pipelines. It only relies on power supply, and can achieve permanent use with a one-time investment, saving a lot of labor and turnover materials.

[0053] The following combination Figures 1 to 3 The structure and shape of the pipe threading device provided in this embodiment are described in detail:

[0054] Furthermore, the electromagnetic module 100 includes a horseshoe-shaped iron core 110 and a coil 120 ; the coil 120 is wound around the horseshoe-shaped iron core 110 and connected to the controller 300 via a control cable.

[0055] refer to Figure 1 The electromagnetic module 100 further includes a magnetizer 130, which is connected to the horseshoe core 110 and is used to connect to the pulley 200 or the inner tube 400. The controller 300 includes a first stepless regulating switch 310 and a second stepless regulating switch 320, wherein:

[0056] The first stepless regulating switch 310 is used to control the electromagnetic module 100 connected to the inner tube 400 to change the direction and magnitude of the current flowing through the coil 120 of the electromagnetic module 100, thereby changing the magnetic pole direction of the horseshoe-shaped iron core 110 in the electromagnetic module 100 and adjusting the magnitude of the magnetic force. The magnetizer 130 is connected between the horseshoe-shaped iron core 110 and the inner tube 400 to magnetize the inner tube 400, and the outer surface of the inner tube 400 is an N pole or an S pole as a whole; the second stepless regulating switch 320 is used to control the electromagnetic module 100 connected to the pulley 200 to change the direction and magnitude of the current flowing through the coil 120 of the electromagnetic module 100, thereby changing the magnetic pole direction of the horseshoe-shaped iron core 110 in the electromagnetic module 100 and adjusting the magnitude of the magnetic force. The magnetizer 130 is connected between the horseshoe-shaped iron core 110 and the pulley 200 to magnetize the pulley 200, and the pulley 200 is an N pole or an S pole as a whole, achieving the purpose of magnetic suspension and magnetic attraction.

[0057] For further reference, Figure 2 and Figure 3 The pulley 200 includes a slider 210, a roller 220 and an IR sensor 230; the slider 210 is used to support the inner tube 400; the roller 220 is arranged at the bottom of the slider 210 and is rotatably connected to the slider 210; the IR sensor 230 is arranged at the top of the slider 210 and is signal-connected to the controller 300.

[0058] Continue to refer Figure 2 and Figure 3An IR sensor 230 is located at the center of the slider 210 and wirelessly transmits signals to the controller 300 to sense the relative displacement between the trolley 200 and the inner tube 400, specifically the position and height of the inner tube 400, thereby assisting the controller 300 in controlling the magnetic force. The trolley 200 is also equipped with a protective mat 240, which is placed on top of the slider 210 to protect the inner tube 400 during transportation.

[0059] For further information, please refer to Figure 2 and Figure 3 There are multiple pulleys 200, and the multiple pulleys 200 are distributed in an array; adjacent pulleys 200 are connected by hinges 500.

[0060] Specifically, such as Figure 2 and Figure 3 As shown, multiple sliders 210 are distributed in an array, and universal wheel arcs 510 are fixed on the four directions of the slider 210, so that the left, right, front and rear can be connected to the sliders 210 in other pulleys 200 through connecting rods 520; wherein, the connecting rod 520 includes a connecting section and a ball joint section integrally formed with the connecting section, and the two ball joint sections are respectively arranged at both ends of the connecting section, and are respectively used to be embedded in two relatively distributed universal wheel arcs 510.

[0061] For specific applications, refer to Figure 3 , multiple pulleys 200 are connected in sequence. Due to the ball joints between adjacent pulleys 200, the multiple pulleys 200 can form a certain curvature, so that they can fit into the sleeve 600 and can also fit into the inner tube 400, providing support for the inner tube 400 and preventing the inner tube 400 from rolling off the pulleys 200. Here, the number of pulleys 200 used is determined by the diameter of the tube and can be increased or decreased according to actual conditions.

[0062] It can be seen that the above design ensures the stability of the pulley 200, and the center line of the sleeve 600 can always remain parallel to the center line of the bottom of the sleeve 600, avoiding the overturning of the inner tube 400; at the same time, the number of pulleys 200 used is adjusted according to the outer diameter of the inner tube 400, and both the annular size and the longitudinal size can be adjusted and used in an individual manner, thereby achieving the purpose of assembly.

[0063] The present invention also provides a method for threading a pipe in a jacking pipe. The method is implemented based on the above-mentioned pipe threading device and includes the following steps:

[0064] When the inner tube 400 is transported, the first stepless regulating switch 310 on the controller 300 is started so that the upper part of the horseshoe-shaped iron core 110 on the inner tube 400 line is the N pole and the lower part connected to the inner tube 400 is the S pole; the second stepless regulating switch 320 on the controller 300 is started so that the upper part of the horseshoe-shaped iron core 110 on the pulley 200 line is the S pole and the lower part connected to the slider 210 is the N pole; after the inner tube 400 is transported to the right position, the first stepless regulating switch 310 on the controller 300 is adjusted so that the upper part of the horseshoe-shaped iron core 110 on the inner tube 400 line is the S pole and the lower part connected to the inner tube 400 is the N pole; or the second stepless regulating switch 320 on the controller 300 is adjusted so that the upper part of the horseshoe-shaped iron core 110 on the pulley 200 line is the N pole and the lower part connected to the slider 210 is the S pole.

[0065] In the above, the direction of the magnetic force is adjusted according to the specific scenario, and is specifically personalized by the direction of each input current to achieve magnetic levitation or magnetic attraction; the magnitude of the magnetic force can be adjusted according to the squeezing conditions of the inner tube 400 and the pulley 200, and is specifically personalized by the magnitude of each input current.

[0066] Through the above method, high-quality and high-efficiency completion of large-scale and long-distance pipeline internal steel pipes can be achieved. Relying only on power supply, a one-time investment can be used permanently, solving the problem of serious damage to the large-area internal pipe 400 anti-corrosion layer during the internal pipe construction process, and reducing the service life and effect of the internal pipe 400, saving a lot of labor and turnover materials.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe threading device, characterized in that: include: Electromagnetic module (100), pulley (200) and controller (300); The electromagnetic module (100) has two magnetic poles with variable directions, and is provided with two groups. In the two groups of electromagnetic modules (100), one magnetic pole of one group is connected to the pulley (200), and one magnetic pole of the other group is used to connect to the inner tube (400), so as to magnetize the pulley (200) and the inner tube (400) respectively. The controller (300) is electrically connected to the electromagnetic module (100) and is used to control the magnetic pole direction and magnetic force of the electromagnetic module (100).

2. The pipe threading device according to claim 1, characterized in that: The electromagnetic module (100) comprises a horseshoe-shaped iron core (110) and a coil (120); The coil (120) is wound around the horseshoe-shaped iron core (110) and is connected to the controller (300) via a control cable.

3. The pipe threading device according to claim 2, characterized in that: The electromagnetic module (100) further includes a magnetic conductor (130); The magnetic conductor (130) is connected to the horseshoe-shaped iron core (110) and is used to be connected to the pulley (200) or the inner tube (400).

4. The pipe threading device according to claim 1, characterized in that: The pulley (200) includes a slider (210), a roller (220) and an IR sensor (230); The slider (210) is used to support the inner tube (400); The roller (220) is disposed at the bottom of the slider (210) and is rotatably connected to the slider (210); The IR sensor (230) is disposed on the top of the slider (210) and is connected to the controller (300) via a signal.

5. The pipe threading device according to claim 4, characterized in that: The pulley (200) further includes a protective pad (240), and the protective pad (240) is laid on the top of the slider (210).

6. The pipe threading device according to claim 4, characterized in that: There are a plurality of pulleys (200), and the plurality of pulleys (200) are distributed in an array; Adjacent pulleys (200) are connected via hinges (500).

7. The pipe threading device according to claim 6, characterized in that: The hinge (500) includes a universal wheel arc (510) and a connecting rod (520); The universal wheel arc (510) is hinged to the connecting rod (520), and one of the two is fixed to the slider (210).

8. The pipe threading device according to claim 7, characterized in that: The universal wheel arc (510) is fixed to the slider (210); The connecting rod (520) comprises a connecting section and a ball joint section integrally formed with the connecting section, and the ball joint section is embedded in the universal wheel arc (510).

9. A method for inserting a pipe into a jacking pipe, characterized in that: The pipe threading device according to any one of claims 1 to 8 comprises the following steps: When the inner tube (400) is transported, the first stepless regulating switch (310) on the controller (300) is activated, so that the upper portion of the horseshoe-shaped iron core (110) on the inner tube (400) line is the N pole, and the lower portion connected to the inner tube (400) is the S pole; The second stepless regulating switch (320) on the controller (300) is activated, so that the upper portion of the horseshoe-shaped iron core (110) on the pulley (200) line is the S pole, and the lower portion connected to the slider (210) is the N pole; After the inner tube (400) is delivered to the position, the first stepless regulating switch (310) on the controller (300) is adjusted so that the upper side of the horseshoe-shaped iron core (110) on the inner tube (400) line is the S pole and the lower side connected to the inner tube (400) is the N pole; Alternatively, the second stepless regulating switch (320) on the controller (300) is adjusted so that the upper portion of the horseshoe-shaped iron core (110) on the pulley (200) line is the N pole and the lower portion connected to the slider (210) is the S pole.

10. The method for inserting a pipe into a jacking pipe according to claim 9, characterized in that: When the horseshoe-shaped iron core (110) is magnetized, the first stepless regulating switch (310) or the second stepless regulating switch (320) is adjusted to adjust the magnitude of the current flowing through the coil (120).

Images