A 3PE anti-corrosion layer automatic roughening and polarization device

Abstract

The present invention discloses an automatic roughening and polarization device for a 3PE anti-corrosion layer, comprising a swing mechanism, a roughening mechanism (6) and a polarization mechanism connected to the swing mechanism, wherein the swing mechanism can drive the roughening mechanism (6) and the polarization mechanism to swing; the roughening mechanism (6) comprises a mounting frame (13) connected to the swing mechanism, and a plurality of roughening blocks mounted on the mounting frame (13), wherein the roughening blocks can swing relative to the mounting frame (13). The fixing bracket of the present invention is provided with a plurality of latch teeth, each of which forms a gear position, and the roughening force of the roughening mechanism is adjusted by fixing the pull rod at different gear positions, thereby ensuring that the roughening degree meets the requirements. The swing plate of the present invention can swing around the mounting axis, and the upper end of the swing plate is connected to the mounting frame through a connecting spring, and the roughening mechanism can automatically adjust the roughening depth according to the change of the thickness of the 3PE anti-corrosion layer through the tension of the connecting spring, thereby ensuring the uniformity of the roughening degree.

Description

Technical Field

[0001] The invention relates to the field of konjac, and in particular to an automatic roughening and polarization device for a 3PE anti-corrosion layer. Background Art

[0002] When laying oil and gas pipelines in directional drilling crossing sections, a wear-resistant protective layer is generally installed on the surface of the 3PE anti-corrosion layer of the crossing section pipeline according to the earthwork conditions of the crossing section. SY / T 7368-2017 "Technical Specifications for Anti-corrosion Layers of Crossing Pipelines" and Q / SY 1477-2012 "Technical Specifications for External Coatings of Directional Drilling Crossing Pipelines" and other standards clearly stipulate that the 3PE anti-corrosion layer of the crossing section must be flame polarized and roughened before the wear-resistant protective layer is installed; currently, the most common practice for roughening and polarizing the 3PE anti-corrosion layer of the crossing section is to manually use a liquefied gas tank to bake the 3PE, and then manually use saw teeth, angle grinders and other tools to roughen the polarized 3PE. Flame polarization and PE roughening treatment are very important technical measures to ensure the adhesion between the wear-resistant protective layer and the 3PE anti-corrosion layer, but the current manual roughening and flame polarization have the following disadvantages:

[0003] 1. After artificial flame polarization, the roughening treatment cannot be carried out at the same time. When the roughening process is carried out, the ambient temperature is much lower than the polarization temperature. The polarization temperature of the PE layer surface is greatly reduced during the roughening treatment, resulting in uneven roughening degree and shallow roughening depth.

[0004] 2. When manually roughening the 3PE anti-corrosion layer, one method is to use sawtooth roughening. The depth of this method is difficult to control. If the roughening depth is too deep, the anti-corrosion layer will be damaged and fail, and if it is too shallow, it will not have any effect. The second method is to use a manual angle grinder with a wire wheel for grinding. However, due to the high hardness of the 3PE anti-corrosion layer, the roughening depth of this method cannot be guaranteed.

[0005] 3. During artificial flame polarization, the distance between the flame nozzle and the 3PE anti-corrosion layer cannot be controlled, resulting in uneven heating and poor polarization effect. Summary of the invention

[0006] The purpose of the present invention is to overcome the above problems and provide an automatic roughening and polarization device for 3PE anti-corrosion layer which is more convenient to operate and can improve the roughening effect.

[0007] The purpose of the present invention is achieved through the following technical scheme: an automatic roughening and polarization device for a 3PE anti-corrosion layer, comprising a swing mechanism, a roughening mechanism and a polarization mechanism connected to the swing mechanism, the swing mechanism can drive the roughening mechanism and the polarization mechanism to swing; the roughening mechanism comprises a mounting frame connected to the swing mechanism, a plurality of roughening blocks mounted on the mounting frame, and the roughening blocks can swing relative to the mounting frame.

[0008] Furthermore, the roughening block includes a swing plate, a hacksaw mounting block connected to the swing plate, and a hacksaw mounted on the hacksaw mounting block; the swing plate is connected to a mounting frame and can swing relative to the mounting frame;

[0009] The mounting frame includes a mounting seat connected to the swing mechanism and a mounting shaft arranged on the mounting seat; the lower end of the swing plate is mounted on the mounting shaft, and the upper end of the swing plate is connected to the mounting seat through a connecting spring, so that the swing plate can swing around the mounting shaft.

[0010] The swing mechanism includes a base, a mounting rod movably connected to one end of the base, and a pull rod installed on the base through a fixed bracket; the upper end of the mounting rod is connected to the pull rod through a tension spring, and the hair pulling mechanism is installed at the lower end of the mounting rod; the pull rod can swing relative to the base, and when the pull rod swings, it can drive the mounting rod to swing.

[0011] The fixing bracket is provided with a fixing mechanism for fixing the pull rod; the fixing mechanism comprises a plurality of latch teeth arranged on the fixing bracket and a fixing stop rod movably placed on any of the latch teeth.

[0012] The polarization mechanism comprises an air supply pipeline connected to the lower end of the mounting rod and a plurality of flame spray heads arranged on the air supply pipeline.

[0013] The polarization mechanism also includes an infrared temperature sensor installed at the lower end of the mounting rod.

[0014] The stretch spring and / or the connecting spring are both provided with a tension sensor.

[0015] The teeth spacing of the hacksaw is 0.5-2 mm.

[0016] The mounting seat is provided with a limiting rod for limiting the swing amplitude of the swing plate.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] (1) The fixing bracket of the present invention is provided with a plurality of latch teeth, each of which forms a gear position. By fixing the pull rod at different gear positions, the roughening force of the roughening mechanism can be adjusted to ensure that the roughening degree meets the requirements.

[0019] (2) The swing plate of the present invention can swing around the mounting axis, and the upper end of the swing plate is connected to the mounting frame through a connecting spring. Through the tension of the connecting spring, the roughening mechanism can automatically adjust the roughening depth according to the change of the thickness of the 3PE anti-corrosion layer to ensure the uniformity of the roughening degree.

[0020] (3) The present invention is equipped with a polarization mechanism, which performs full-circle polarization treatment on the rotating pipe through a flame nozzle, and roughening treatment can be performed while polarizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present invention.

[0022] Figure 2 It is the front view of the present invention.

[0023] Figure 3 It is a side view of the present invention.

[0024] Figure 4 It is a structural diagram of the napping mechanism of the present invention.

[0025] Figure 5 It is a structural diagram of the mounting frame of the present invention.

[0026] Figure 6 It is a structural diagram of the roughening block of the present invention.

[0027] The figure marks in the above drawings are: 1-base, 2-pull rod, 3-fixed bracket, 4-tension spring, 5-mounting rod, 6-nail pulling mechanism, 7-infrared temperature sensor, 8-main air pipe, 9-bronchial pipe, 10-flame nozzle, 11-display screen, 12-grip, 13-mounting frame, 14-connecting spring, 15-swinging plate, 16-hacksaw mounting block, 17-hacksaw, 18-connecting plate, 19-fixed plate, 20-mounting shaft, 21-limiting rod, 22-mounting sleeve. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0029] Example

[0030] At present, the most common method for roughening and polarizing the 3PE anti-corrosion layer of the crossing section is to manually use a liquefied gas tank to bake the 3PE, and then manually use tools such as saw teeth and angle grinders to roughen the polarized 3PE. This traditional treatment method has the defect of poor roughening effect. In order to solve the defects of the traditional method, this embodiment provides an automatic roughening and polarization device for 3PE anti-corrosion layer, through which the roughening effect is improved.

[0031] like Figures 1 to 3 As shown, the 3PE anti-corrosion layer automatic roughening and polarization device includes a swing mechanism, a roughening mechanism 6 and a polarization mechanism. The roughening mechanism 6 and the polarization mechanism are both connected to the swing mechanism, and the swing mechanism can drive the roughening mechanism 6 and the polarization mechanism to swing.

[0032] The swing mechanism includes a base 1, one end of which is connected to a mounting rod 5. When connected, the mounting rod 5 is mounted on the base 1 using a rotating shaft, that is, the rotating shaft passes through the base 1 and both ends are connected to the mounting rod 5. When in use, the base 1 is fixed, and the mounting rod 5 can swing with the rotating shaft as a support point.

[0033] The base 1 is also provided with a pull rod 2 through a fixed bracket 3, and the pull rod 2 can be installed in the middle of the base 1. The pull rod 2 can also swing, and in order to enable the pull rod 2 to achieve the swinging function, the fixed bracket 3 in this embodiment is composed of two bracket plates, and the two bracket plates are respectively fixed to the two sides of the base 1 by welding or screwing, and a rotating shaft is connected between the two bracket plates, and the pull rod 2 is installed on the rotating shaft and located between the two bracket plates, and the pull rod 2 can rotate with the rotating shaft as a support point.

[0034] The mounting rod 5 and the pull rod 2 are connected by a tension spring 4, that is, one end of the tension spring 4 is connected to the lower end of the pull rod 2, and the other end is connected to the upper end of the mounting rod 5. Figure 3 As shown, when the pull rod 2 rotates counterclockwise, due to the tension of the tension spring 4, the tension spring 4 pulls the installation rod 5 to swing clockwise. The hair pulling mechanism 6 and the polarization mechanism are installed at the lower end of the installation rod 5. When the installation rod 5 swings, the hair pulling mechanism 6 and the polarization mechanism move upward with the installation rod 5.

[0035] The tension spring 4 is provided with a tension sensor. When specifically provided, the tension spring 4 is divided into two sections, the two sections are connected by a tension sensor, and the other ends of the two sections are respectively connected to the mounting rod 5 and the pull rod 2. By providing the tension sensor, when the tension spring 4 pulls the mounting rod 5, the tension of the tension spring 4 can be known, so as to better control the swing amplitude of the mounting rod 5 and better control the roughening depth. The model of the tension sensor can be selected according to the actual situation, as long as the tension requirement is met.

[0036] During the whole roughening process, after adjusting the swing amplitude of the pull rod 2, the pull rod 2 needs to be fixed. In this embodiment, a fixing mechanism for fixing the pull rod 2 is provided on the fixing bracket 3. Specifically, the fixing mechanism includes a plurality of latch teeth 12 provided on the fixing bracket 3, and a fixed stopper rod movably placed on any latch teeth 12, that is, a plurality of latch teeth 12 are provided on both bracket plates, and the latch teeth 12 are vertically distributed. When in use, Figure 3 As shown, when the pull rod rotates counterclockwise, the lower end of the pull rod will pass through the two bracket plates. After the position of the pull rod 2 is adjusted, the blocking rod is inserted into the corresponding locking tooth 12, and the blocking rod is used to limit the pull rod 2 from resetting. During the entire roughening process, the mounting rod 5 will no longer swing, so that the position of the roughening mechanism 6 will no longer move, thereby improving the uniformity of the roughening.

[0037] like Figure 4As shown, the roughening mechanism 6 includes a mounting frame 13 connected to the mounting rod 5, and a plurality of roughening blocks mounted on the mounting frame 13, and the roughening blocks can swing relative to the mounting frame 13. The number of roughening blocks can be set according to actual conditions, and the greater the number, the greater the width of the roughening.

[0038] In order to better install the roughening block, the mounting frame 13 in this embodiment is as follows Figure 5 As shown, the mounting frame 13 includes a mounting seat mounted on the mounting rod 5, and a mounting shaft 20 arranged on the mounting seat. Specifically, the mounting frame 13 includes a connecting plate 18 and a fixing plate 19; the fixing plates 19 are arranged in two pieces, which are respectively mounted at both ends of the connecting plate 18, and the connecting plate 18 is connected to the mounting rod 5, and the two ends of the mounting shaft 20 are respectively connected to the two fixing plates 19.

[0039] like Figure 6 As shown, the roughening block includes a swing plate 15, a hacksaw mounting block 16 connected to the swing plate 15, and a hacksaw 17 mounted on the hacksaw mounting block 16. The swing plate 15 and the hacksaw mounting block 16 can be fixedly connected by bolts; the hacksaw mounting block 16 is provided with a mounting groove, and the hacksaw 17 is locked by bolts after being inserted into the mounting groove. When working, the hacksaw 17 contacts the 3PE anti-corrosion layer, and the 3PE anti-corrosion layer is roughened by the hacksaw 17. The sawtooth spacing of the hacksaw is 0.5 to 2 mm, and the sawtooth spacing in this embodiment is set to 1 mm.

[0040] In order to install the roughening block on the mounting shaft 20, as shown in FIG. Figure 6 As shown, a mounting sleeve 22 is provided on the swing plate 15 , and the mounting sleeve 22 is located at the lower end of the swing plate 15 . During installation, the mounting shaft 20 passes through the mounting sleeve 22 so that the entire roughening block is installed on the mounting frame 13 .

[0041] The swing plate 15 can swing with the mounting shaft 20 as a support point, and the upper end of the swing plate 15 is connected to the connecting plate 18 through the connecting spring 14, and the connecting spring 14 increases the pulling force to the swing plate 15. When not in the working state, the connecting spring 14 is in a contracted state, the upper end of the swing plate 15 is close to the connecting plate 18, and the lower end of the swing plate 15 is tilted upward.

[0042] In order to make the hacksaw 17 better contact with the 3PE anti-corrosion layer before roughening begins, it is necessary to limit the height of the lower end of the swing plate 15. In this embodiment, a limit rod 21 for limiting the swing amplitude of the swing plate 15 is installed on the two fixed plates 19. Before work, the lower ends of the swing plates 15 are in contact with the limit rod 21. Through the action of the limit rod 21, the hacksaw 17 can also be located in the same straight line, and the roughening depth can be automatically adjusted according to the change of the thickness of the 3PE anti-corrosion layer to ensure the uniformity of the roughening degree.

[0043] When roughening, the hacksaw 17 presses against the 3PE anti-corrosion layer. As the swing amplitude of the pull rod 2 increases, the lower end of the swing plate 15 approaches the connecting plate 18, and the connecting spring 14 is stretched, providing roughening force through the connecting spring 14.

[0044] As another solution, a tension sensor may also be provided on the connecting spring 14 , and the arrangement method thereof is the same as that of the tension spring 4 , which will not be described again here.

[0045] like Figure 1 As shown, the polarization mechanism includes an air supply pipe connected to the lower end of the mounting rod 5, and a plurality of flame spray heads 10 arranged on the air supply pipe. The air supply pipe includes a main air pipe 8, a bronchial pipe 9 connected to the main air pipe 8, and the flame spray head 10 is arranged on the bronchial pipe 9. When working, an external air source is introduced from the main air pipe 8, and the flame spray head 10 sprays flames to polarize the 3PE anti-corrosion layer.

[0046] like Figure 1 As shown, the polarization mechanism further includes an infrared temperature sensor 7 mounted on the lower end of the mounting rod 5 . The infrared temperature sensor 7 can be mounted through a mounting bracket, and the polarization temperature is detected by the infrared temperature sensor 7 .

[0047] Preferably, the infrared temperature sensor 7 and the air supply pipe can be installed through a rotating joint (not shown in the figure), so that the angle of the flame nozzle 10 and the infrared temperature sensor 7 can be adjusted to better perform polarization work.

[0048] Preferably, a display screen 11 may be installed on the mounting rod 5 to display values ​​such as the tension and polarization temperature of the spring. This technology is relatively common and will not be described further.

[0049] During operation, as with conventional technology, the pipe needs to be installed on a bracket with a rotating roller on the outside, and then polarized and roughened by the device of the present application. During specific operation, the flame nozzle 10 is controlled to be close to the pipe, and the flame nozzle 10 performs full-circle polarization treatment on the rotating pipe. After polarization, the pull rod 2 is pushed to swing the mounting rod 5, and the hacksaw 17 is pressed against the 3PE anti-corrosion layer on the pipe. After the position is adjusted, the hacksaw performs roughening treatment on the 3PE anti-corrosion layer. Since the roughening force is fixed, the uniformity of the roughening can be improved.

[0050] As described above, the present invention can be well implemented.

Claims

1. A 3PE anti-corrosion layer automatic roughening and polarization device, characterized in that: The invention comprises a swing mechanism, a roughening mechanism (6) and a polarizing mechanism connected to the swing mechanism, wherein the swing mechanism can drive the roughening mechanism (6) and the polarizing mechanism to swing; the roughening mechanism (6) comprises a mounting frame (13) connected to the swing mechanism, and a plurality of roughening blocks mounted on the mounting frame (13), wherein the roughening blocks can swing relative to the mounting frame (13); The roughening block comprises a swing plate (15), a hacksaw mounting block (16) connected to the swing plate (15), and a hacksaw (17) mounted on the hacksaw mounting block (16); the swing plate (15) is connected to the mounting frame (13) and can swing relative to the mounting frame (13); The mounting frame (13) comprises a mounting seat connected to the swing mechanism, and a mounting shaft (20) arranged on the mounting seat; the lower end of the swing plate (15) is mounted on the mounting shaft (20), and the upper end of the swing plate (15) is connected to the mounting seat via a connecting spring (14), so that the swing plate (15) can swing around the mounting shaft (20); The swing mechanism comprises a base (1), a mounting rod (5) movably connected to one end of the base (1), and a pull rod (2) mounted on the base (1) via a fixed bracket (3); the upper end of the mounting rod (5) is connected to the pull rod (2) via a tension spring (4), and the hair pulling mechanism (6) is mounted on the lower end of the mounting rod (5); the pull rod (2) can swing relative to the base (1), and when the pull rod (2) swings, it can drive the mounting rod (5) to swing; The fixed bracket (3) is composed of two bracket plates, which are respectively fixed to the two sides of the base (1) by welding or screwing, and a rotating shaft is connected between the two bracket plates; the pull rod (2) is installed on the rotating shaft and is located between the two bracket plates, and the pull rod (2) can rotate with the rotating shaft as a support point; The polarization mechanism comprises an air supply pipeline connected to the lower end of the mounting rod (5), and a plurality of flame spray heads (10) arranged on the air supply pipeline.

2. The 3PE anti-corrosion layer automatic roughening and polarization device according to claim 1 is characterized in that: The fixing bracket (3) is provided with a fixing mechanism for fixing the pull rod (2); the fixing mechanism comprises a plurality of latch teeth (12) arranged on the fixing bracket (3) and a fixing stop rod movably placed on any one of the latch teeth (12).

3. The 3PE anti-corrosion layer automatic roughening and polarization device according to claim 2 is characterized in that: The polarization mechanism also includes an infrared temperature sensor (7) installed at the lower end of the mounting rod (5).

4. The 3PE anti-corrosion layer automatic roughening and polarization device according to claim 3 is characterized in that: The tension spring (4) and / or the connecting spring (14) are both provided with a tension sensor.

5. The 3PE anti-corrosion layer automatic roughening and polarization device according to claim 4 is characterized in that: The teeth spacing of the hacksaw (17) is 0.5-2 mm.

6. The 3PE anti-corrosion layer automatic roughening and polarization device according to claim 5 is characterized in that: The mounting seat is provided with a limiting rod (21) for limiting the swing amplitude of the swing plate (15).

Images