Pipeline dismantling device for gas station transformation

Abstract

The utility model relates to a pipeline dismantling device for gas station transformation, which comprises a shell, a round hole for a pipeline to be inserted is formed in the bottom of the shell, and sealing pieces in contact with the outer wall of the pipeline are fixedly connected to openings in the two sides of the round hole; a circular ring groove is formed in the inner wall of the circular hole, the cutting ring is rotationally arranged in the circular ring groove, and cutting teeth are evenly distributed on the inner hole wall of the cutting ring. The utility model relates to the technical field of gas station pipelines. According to the pipeline dismantling device for gas station transformation, by arranging the cutting ring and the blades, when the cutting ring cuts a pipeline, the blades enable the pressure cavity to generate negative pressure, then oil gas is sucked into the pressure cavity through the gas inlet holes in the back faces of the cutting teeth, then the oil gas is exhausted through the gas exhaust holes, and the oil gas is recycled; potential safety hazards caused by oil gas leakage can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipeline technology field of gas station, especially a pipeline dismantling device for gas station reconstruction. BACKGROUND

[0002] The pipeline system of a gas station is very important infrastructure for safely and effectively transporting and storing fuel. The design and maintenance of the pipeline system of a gas station must comply with strict environmental and safety standards. Leakage not only pollutes groundwater, but also causes fire or explosion risks. Therefore, the pipeline system must comply with national or local safety and environmental regulations and be equipped with emergency treatment equipment.

[0003] In the prior art, when a gas station is reconstructed, the internal pipeline also needs to be changed, so the original old pipeline needs to be removed. However, after the oil in the pipeline is emptied, there is still residual oil attached to the inner wall of the pipeline, which volatilizes to fill the pipeline with oil gas, causing the oil gas to leak along the cutting seam when the pipeline is removed, which poses a safety hazard, and the leaked oil gas also causes waste. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a pipeline dismantling device for gas station reconstruction to solve the technical problems mentioned in the background.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme:

[0006] A pipeline dismantling device for gas station reconstruction comprises a shell, a circular hole for inserting a pipeline is formed in the bottom of the shell, sealing sheets in contact with the outer wall of the pipeline are fixedly connected to the openings on both sides of the circular hole;

[0007] A cutting ring is rotatably arranged in a circular groove formed in the inner wall of the circular hole, and cutting teeth are uniformly distributed on the inner hole wall of the cutting ring;

[0008] A power assembly is arranged in the shell for driving the cutting ring to rotate;

[0009] A pressure cavity is formed in the side wall of the circular groove on the outer side of the circular hole, a plurality of blades for pushing gas flow are arranged in an annular array at a position of the outer wall of the cutting ring in the pressure cavity, the blades divide the pressure cavity into an inner cavity and an outer cavity, an exhaust hole is formed in the shell and communicates with the outer cavity, and an air inlet hole is formed in the outer wall of the cutting teeth on the side away from the cutting surface and communicates with the inner cavity.

[0010] Further, the shell, the cutting ring, and the sealing sheets are horizontally split and arranged with the center of the circular hole as a reference.

[0011] Furthermore, a filter plate is fixedly connected to the opening of the exhaust port, and the end of the exhaust port away from the outer cavity extends out of the housing and is connected to an oil and gas recovery device.

[0012] Furthermore, the power assembly includes an external gear ring, a transmission gear, and a drive motor. Two external gear rings are provided and are respectively fixedly connected to the outer peripheral wall of the split cutting ring. The drive motor is fixedly connected inside the housing above the external gear rings. The output shaft of the drive motor is fixedly connected to the transmission gear, which meshes with the external gear rings.

[0013] Furthermore, a Hall sensor is embedded in the annular groove, and a controller is fixedly connected to the outer wall of the housing. The drive motor and the Hall sensor are both electrically connected to the controller.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. The pipeline removal device for gas station renovation, through the setting of cutting ring and blade, can make the cutting ring cut the pipeline, and the blade can make the pressure chamber generate negative pressure, and then the air inlet on the back of the cutting tooth draws oil and gas into the pressure chamber, and then the oil and gas are discharged through the exhaust hole, and the oil and gas are recovered, which can effectively avoid the safety hazards caused by oil and gas leakage.

[0016] 2. This pipeline dismantling device for gas station renovation, through the installation of an oil and gas recovery device, can recover the oil and gas in the exhaust gas discharged from the exhaust port, reducing losses during pipeline dismantling for gas station renovation, thereby effectively improving the practicality of the dismantling device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a pipeline removal device for gas station renovation according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a pipeline removal device for gas station renovation according to this utility model when it is opened.

[0020] Figure 3 This is a schematic diagram of the internal structure of a pipeline removal device for gas station renovation according to the present invention.

[0021] Figure 4This is a schematic diagram of the power component in a pipeline removal device for gas station renovation according to this utility model.

[0022] Figure 5 This is a schematic diagram of the air inlet in a pipeline removal device for gas station renovation according to this utility model.

[0023] In the diagram, 1. Housing; 2. Cutting ring; 3. Power assembly; 31. External gear ring; 32. Transmission gear; 33. Drive motor; 4. Circular hole; 5. Sealing plate; 6. Circular groove; 7. Cutting tooth; 8. Pressure chamber; 81. Inner cavity; 82. Outer cavity; 9. Blade; 10. Exhaust port; 11. Inlet port; 12. Filter plate; 13. Oil and gas recovery unit; 14. Hall sensor; 15. Controller; 16. Snap-fit ​​component. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1 - Figure 5 The present invention discloses a pipe removal device for gas station renovation, including a housing 1. The bottom of the housing 1 is provided with a round hole 4 for inserting a pipe. Both sides of the round hole 4 are fixedly connected with sealing plates 5 that contact the outer wall of the pipe.

[0027] The inner wall of the circular hole 4 of the cutting ring 2 is provided with a circular groove 6. The cutting ring 2 is rotatably set in the circular groove 6. Cutting teeth 7 are evenly distributed on the inner wall of the cutting ring 2.

[0028] The power assembly 3, which is located inside the housing 1, is used to drive the cutting ring 2 to rotate;

[0029] The sidewall of the annular groove 6 is provided with a pressure chamber 8 outside the circular hole 4. The outer wall of the cutting ring 2 is connected in an annular array with multiple blades 9 for driving gas flow. The blades 9 divide the pressure chamber 8 into an inner cavity 81 and an outer cavity 82. An exhaust hole 10 communicating with the outer cavity 82 is provided inside the housing 1. An air inlet hole 11 communicating with the inner cavity 81 is provided on the outer wall of the cutting tooth 7 on the side away from the cutting surface.

[0030] In this embodiment, observation Figure 1 - Figure 3It can be seen that a circular hole 4 is provided in the shell 1, which allows the pipe to be inserted into the circular hole 4. Then, sealing plates 5 are fixedly connected to the openings on both sides of the circular hole 4. The sealing plates 5 can contact the outer wall of the pipe, so that the overlapping part of the circular hole 4 and the outer wall of the pipe is isolated from the outside. Then, a circular groove 6 is provided in the circular hole 4. A cutting ring 2 is connected to the circular groove 6 through a power component 3. The power component 3 can drive the cutting ring 2 to rotate at high speed, so that the evenly distributed cutting teeth 7 in the cutting ring 2 can cut the outer wall of the pipe, thereby achieving the effect of cutting the pipe and facilitating the subsequent pipe disassembly.

[0031] Although the oil in the pipeline has been drained, residual oil vapors remain inside. These vapors leak through the cut after the pipeline is cut open. Therefore, combined with... Figure 2 and Figure 3 It can be observed that a pressure chamber 8 is provided on the side wall of the annular groove 6 outside the circular hole 4. Subsequently, multiple blades 9 are connected in an annular array on the outer wall of the cutting ring 2 at a location in the pressure chamber 8. When the cutting ring 2 rotates, it will rotate the blades 9, thereby causing the air in the pressure chamber 8 to be pushed by the blade surface of the blades 9, pushing the air from the inner cavity 81 to the outer cavity 82, thus generating negative pressure in the inner cavity 81 and positive pressure in the outer cavity 82. Subsequently, an air inlet 11 communicating with the inner cavity 81 is opened on the outer wall of the cutting tooth 7 on the side away from the cutting surface, and an exhaust hole 10 communicating with the outer cavity 82 is opened in the housing 1. At this time, when the cutting ring 2 rotates, air will be drawn into the inner cavity 81 through the air inlet 11 of the cutting tooth 7. Then, the air in the inner cavity 81 is pushed into the outer cavity 82 by the push of the blade 9. Finally, the air in the outer cavity 82 is discharged through the exhaust hole 10. Therefore, as long as an exhaust pipe for transporting oil and gas is connected to the exhaust port of the exhaust hole 10, the oil and gas in the pipeline can be safely extracted, avoiding oil and gas leakage and safety hazards. At the same time, the oil and gas in the pipeline can be recovered and reused.

[0032] In a further preferred embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the housing 1, the cutting ring 2, and the sealing sheet 5 are all horizontally split with the center of the circular hole 4 as the reference.

[0033] In this embodiment, because the pipes in the gas station are connected end to end, they cannot be inserted into the round hole 4 when the pipes are disassembled, which affects the use of the disassembly device.

[0034] Therefore, observe Figure 1 and Figure 2It can be seen that by setting the housing 1, cutting ring 2 and sealing plate 5 horizontally with the center of the circular hole 4 as the reference, the housing 1, cutting ring 2 and sealing plate 5 can be set separately. When disassembling the pipe, the housing 1 can be opened and the pipe placed in the circular hole 4. Then the housing 1 can be closed again to achieve the effect of putting the pipe into the circular hole 4.

[0035] Because the housing 1, cutting ring 2, and sealing plate 5 are separate components, they may disintegrate due to vibration when cutting pipes, affecting the use of the dismantling device. Therefore, observation is necessary. Figure 2 It can be seen that the split housing 1 is hinged on one side and has a snap-fit ​​part 16 on the other side to snap the split housing 1 together. After the pipe is inserted into the round hole 4, the snap-fit ​​part 16 is used to lock the split housing 1, so that the housing 1 will not disintegrate when the cutting ring 2 is cutting, thus ensuring the stability of the dismantling device.

[0036] Among them, the aforementioned snap-fit ​​component 16 can be a detachable positioning and connecting mechanism such as a plug and socket, a snap-fit ​​and a slot.

[0037] In a further preferred embodiment of this utility model, such as Figure 3 As shown, a filter plate 12 is fixedly connected to the opening of the exhaust port 10, and one end of the exhaust port 10 away from the outer cavity 82 extends out of the housing 1 and is connected to an oil and gas recovery device 13.

[0038] In this embodiment, since the negative pressure generated in the inner cavity 81 draws in oil and gas, it also draws in cutting debris from the pipeline. Therefore, in order to prevent the debris and oil and gas from being discharged together through the exhaust port 10, a filter plate 12 is fixedly connected at the opening of the exhaust port 10.

[0039] By connecting an oil and gas recovery device 13 to the opening of the exhaust port 10, the discharged oil and gas can be recovered, improving the practicality of the dismantling device.

[0040] In a further preferred embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the power assembly 3 includes an outer gear ring 31, a transmission gear 32, and a drive motor 33. Two outer gear rings 31 are provided and are respectively fixedly connected to the outer peripheral wall of the split cutting ring 2. The drive motor 33 is fixedly connected above the outer gear ring 31 inside the housing 1. The output shaft of the drive motor 33 is fixedly connected to the transmission gear 32, and the transmission gear 32 meshes with the outer gear ring 31.

[0041] In this embodiment, the drive motor 33 and transmission gear 32 can quickly rotate the outer gear ring 31, thereby causing the cutting ring 2 connected to the outer gear ring 31 to rotate at high speed, which can quickly cut off the pipe and improve the efficiency of pipe removal.

[0042] Because the cutting ring 2 is designed as a separate unit, observation is possible. Figure 4 It can be seen that there are two external gear rings 31, which are fixedly connected to two cutting rings 2 respectively. When the split housing 1 is closed, the two external gear rings 31 are combined into a complete gear ring, thereby making the transmission gear 32 more stable.

[0043] In a further preferred embodiment of this utility model, such as Figure 2 - Figure 4 As shown, a Hall sensor 14 is embedded in the annular groove 6, and a controller 15 is fixedly connected to the outer wall of the housing 1. The drive motor 33 and the Hall sensor 14 are both electrically connected to the controller 15.

[0044] In this embodiment, because the cutting ring 2 is set in two parts, when the cutting ring 2 is combined into a complete ring and rotates, it will be misaligned with the opening plane of the housing 1. As a result, when the housing 1 is opened, the annular groove 6 cannot be opened due to the support of the cutting ring 2, which affects the use of the dismantling device.

[0045] Therefore, observe Figure 2 It can be seen that a Hall sensor 14 is embedded in the annular groove 6, and a controller 15 is fixedly connected to the outer wall of the housing 1. Then, the Hall sensor 14, the drive motor 33 and the controller 15 are electrically connected. After the pipeline cutting operation is completed, the Hall sensor 14 detects the offset of the outer toothed ring 31. Then, the controller 15 controls the drive motor 33 to correct the offset, and the two cutting rings 2 are reset, so that the housing 1 can be opened normally.

[0046] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pipe removal device for gas station renovation, characterized in that, Includes a housing (1), the bottom of the housing (1) is provided with a round hole (4) for inserting a pipe, and sealing plates (5) that contact the outer wall of the pipe are fixedly connected to the openings on both sides of the round hole (4). The inner wall of the circular hole (4) of the cutting ring (2) is provided with a circular groove (6), the cutting ring (2) is rotatably set in the circular groove (6), and the inner wall of the cutting ring (2) is evenly distributed with cutting teeth (7); The power assembly (3), which is located inside the housing (1), is used to drive the cutting ring (2) to rotate; The sidewall of the annular groove (6) is provided with a pressure chamber (8) located outside the circular hole (4). The outer wall of the cutting ring (2) is connected in an annular array with multiple blades (9) for driving gas flow. The blades (9) divide the pressure chamber (8) into an inner cavity (81) and an outer cavity (82). The housing (1) is provided with an exhaust hole (10) communicating with the outer cavity (82). The outer wall of the cutting tooth (7) facing away from the cutting surface is provided with an air inlet hole (11) communicating with the inner cavity (81).

2. The pipeline removal device for gas station renovation according to claim 1, characterized in that, The housing (1), the cutting ring (2), and the sealing sheet (5) are all horizontally split with the center of the circular hole (4) as the reference.

3. The pipeline removal device for gas station renovation according to claim 1, characterized in that, A filter plate (12) is fixedly connected to the opening of the exhaust port (10). One end of the exhaust port (10) away from the outer cavity (82) extends out of the housing (1) and is connected to an oil and gas recovery device (13).

4. The pipeline removal device for gas station renovation according to claim 2, characterized in that, The power assembly (3) includes an outer gear ring (31), a transmission gear (32), and a drive motor (33). There are two outer gear rings (31), which are fixedly connected to the outer peripheral wall of the split cutting ring (2). The drive motor (33) is fixedly connected above the outer gear ring (31) inside the housing (1). The output shaft of the drive motor (33) is fixedly connected to the transmission gear (32), and the transmission gear (32) meshes with the outer gear ring (31).

5. A pipeline removal device for gas station renovation according to claim 4, characterized in that, The circular groove (6) is embedded with a Hall sensor (14), and the outer wall of the housing (1) is fixedly connected to a controller (15). The drive motor (33) and the Hall sensor (14) are both electrically connected to the controller (15).

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