Pipeline sandblasting installation

Abstract

The invention provides a pipeline sandblasting arrangement device, including an outer pipeline, an inner pipeline is installed in the outer pipeline, a driving wheel is provided on the left side of the outer pipeline, and a detour wheel is provided on the right side, a rope is wound between the driving wheel and the detour wheel, the rope is passed out from the top position of the inner space of the outer pipeline, and a sandblasting tube is hung at the input section and the detour section of the rope through a detachable mechanism, and a plurality of sand outlets are provided at the bottom end of the tube wall of each sandblasting tube. In the pipeline sandblasting arrangement device described in the invention, two sandblasting tubes are synchronously moved into the outer pipeline by using the wound rope, and the sandblasting tube is used to perform sandblasting operation on the inner pipeline as a whole, so as to ensure that the inner pipeline is buried in the sand and gravel as a whole, and improve the overall stability of the inner pipeline.

Description

Technical Field

[0001] The invention belongs to the field of pipeline threading and fixing, and in particular relates to a pipeline sandblasting laying device. Background Art

[0002] During pipeline construction, pipe threading operations are often involved. For example, in the construction of natural gas transmission pipelines, the pipeline for transmitting natural gas is installed in an outer pipeline. After the pipe threading operation, gravel is often filled at both ends of the outer pipeline. The two ends of the inner pipeline for transmitting natural gas are buried in the gravel respectively to fix the inner pipeline. The middle part of the inner pipeline is suspended in the outer pipeline. Therefore, vibration will occur during pipeline transportation, and the pipeline will deform after long-term transportation. The inner pipeline will be bent and deformed for a long time, and there is a risk of pipeline rupture. Once the inner pipeline ruptures, it will not only affect the normal pipeline transportation operation and bring inconvenience to life, but also the toxic raw materials in the pipeline will pollute the environment and affect human health. Invention content

[0003] In view of this, the invention aims to propose a pipeline sandblasting arrangement device to achieve overall sandblasting fixation of the inner pipeline during the pipe threading operation, so as to achieve overall stable support of the inner pipeline in the outer pipeline.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] The pipeline sandblasting arrangement device comprises an outer pipeline, an inner pipeline is installed inside the outer pipeline, a sand storage space is left around the inner pipeline and between the outer pipeline, a driving wheel is provided on the left side of the outer pipeline, and a detour wheel is provided on the right side thereof, the center lines of the driving wheel and the detour wheel are respectively vertical and their positions are relatively fixed with respect to the position of the outer pipeline, a rope is wound around the driving wheel and the detour wheel, the rope is arranged to pass through the top position of the inner space of the outer pipeline, a sandblasting tube is hung on the input section and the detour section of the rope through a detachable mechanism respectively, the sandblasting tube is located above the inner pipeline, and a plurality of sand outlets are provided at the bottom end of the tube wall of each sandblasting tube.

[0006] Furthermore, the detachable mechanism includes a plurality of detachable hanging ropes arranged on the rope and corresponding to the sandblasting tube, each of the detachable hanging ropes is provided with a fixing part for fixing the sandblasting tube, and the sandblasting tube is fixedly mounted on the detachable hanging rope by the fixing part.

[0007] Furthermore, the fixing piece is a clamp structure corresponding to the sandblasting tube.

[0008] Furthermore, the detachable rope grip is a caliper rope grip.

[0009] Furthermore, the length of the sandblasting tube is equal to half the length of the outer pipe, and the inner ends of the two sandblasting tubes are arranged adjacent to each other.

[0010] Furthermore, the inner end of the sandblasting tube is an open end.

[0011] Furthermore, the rope is provided with a tensioning wheel corresponding to the rope, the tensioning wheel is arranged adjacent to the detour wheel, and the tensioning wheel is located between the input section and the detour section of the rope.

[0012] Compared with the prior art, the pipeline sandblasting arrangement device created by the present invention has the following advantages:

[0013] In the pipeline sandblasting arrangement device created by the present invention, two sandblasting tubes are synchronously moved into the outer pipeline by using the rewound rope, and the inner pipeline is sandblasted as a whole around the sandblasting tube to ensure that the inner pipeline is buried in the sand and gravel as a whole, thereby improving the overall stability of the inner pipeline. On the one hand, it has a good buffering and shockproof effect on the inner pipeline, and on the other hand, it prevents the inner pipeline from bending to a limited extent, thereby increasing the service life of the inner pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 This is a schematic diagram of the pipeline sandblasting arrangement device described in this embodiment;

[0016] Figure 2 for Figure 1 AA view of the .

[0017] Description of reference numerals:

[0018] 1- bracket; 2- driving wheel; 3- removable hanging rope gripper; 4- fixing piece; 5- sandblasting tube; 51- sand outlet; 6- outer pipe; 7- inner pipe; 8- rope; 9- tensioning wheel; 10- detour wheel. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] like Figure 1 , 2As shown, the pipeline sandblasting arrangement device includes an outer pipeline 6, which is horizontally arranged in the left and right directions, and an inner pipeline 7 is installed in the outer pipeline 6, and the inner pipeline 7 is suspended in the outer pipeline 6, and a sand storage space is formed between the inner pipeline 7 and the outer pipeline 6. A bracket 1 is respectively arranged at the left and right positions of the outer pipeline 6, and the positions of the bracket 1 and the outer pipeline 6 are relatively fixed, wherein the bracket 1 located on the left side is provided with a driving wheel 2, and the center line of the driving wheel 2 is arranged vertically, and the bracket 1 on the left side is provided with a motor for driving the driving wheel 2 to rotate, and the bracket 1 located on the right side is provided with a detour wheel 10 corresponding to the driving wheel 2, and the center line of the detour wheel 10 is vertical, and the driving wheel 2 and the detour wheel 10 are respectively arranged corresponding to the pipe mouth of the outer pipeline 6, and a rope 8 is wound around the driving wheel 2 and the detour wheel 10, and the rope 8 is arranged from the top position of the internal space of the outer pipeline 6, and the driving wheel 2 rotates, driving the rope 8 to rotate and move between the driving wheel 2 and the detour wheel 10. In this embodiment, the section where the rope 8 moves from the driving wheel 2 to the detour wheel 10 is the input section, and the section where the rope 8 moves from the detour wheel 10 to the driving wheel 2 is the detour section. The rope 8 is respectively hung with a sandblasting tube 5 through a detachable mechanism at the input section and the detour section. The sandblasting tube 5 is located above the inner pipe 7, that is, the sandblasting tube 5 is located at the upper position of the sand storage space. Each sandblasting tube 5 is provided with a plurality of sand outlets 51 at the bottom end of the tube wall, and the sand outlets 51 are vertically arranged downward. During specific operations, the driving wheel 2 rotates to drive the rope 8 to move. During the movement of the rope, the sandblasting tube 5 is hung on the rope 8 through a detachable mechanism. While the rope 8 moves, the two sandblasting tubes 5 move synchronously into the outer pipe 6. After the sandblasting tube 5 moves to the set position, the outer ends of the two sandblasting tubes 5 are each connected to a gravel input pipe, and gravel is continuously input into the sandblasting tube 5 through the gravel input pipe. The gravel entering the sandblasting tube 5 falls through the sand outlet 51, and finally the inner pipe 7 is filled with gravel, that is, the inner pipe 7 is buried in the gravel as a whole to improve the overall stability of the inner pipe 7. Since the inner pipe 7 is buried in the gravel, the structure also plays a good shock-proof role.

[0024] In this embodiment, the detachable mechanism includes several detachable hanging ropes 3 arranged on the rope 8 and corresponding to the sandblasting tube 5. The detachable hanging ropes 3 are preferably caliper hanging ropes. Each detachable hanging rope 3 is provided with a connecting plate at the fixed end. A fixing member 4 for fixing the sandblasting tube 5 is fixed on the connecting plate. The fixing member 4 is preferably a clamp structure corresponding to the sandblasting tube 5. The sandblasting tube 5 is fixedly mounted on the detachable hanging rope 3 through the fixing member 4. In this embodiment, firstly, several detachable hanging ropes 3 are fixed to the sandblasting tube 5 through their respective fixing members 4. Several detachable hanging ropes 3 are sequentially arranged on the sandblasting tube 5. When the rope 8 moves, several detachable hanging ropes 3 are quickly fixed to the rope 8 in sequence to achieve the rapid hanging of the sandblasting tube 5.

[0025] In this embodiment, since the two sandblasting tubes 5 move opposite to each other, the length of the sandblasting tubes 5 is set to be half of the length of the outer pipe 6. When the two sandblasting tubes 5 are moved to the inner ends close to each other, the length of the two sandblasting tubes 5 just corresponds to the length of the outer pipe 6, and the two sandblasting tubes can be used to achieve the whole sandblasting operation of the inner pipe 7. In this embodiment, the inner end of the sandblasting tube 5 is an open end, and the sand and gravel can fall through the sand outlet 51 and the inner end of the sandblasting tube 5 at the same time.

[0026] In this embodiment, the rope 8 is provided with a tensioning wheel 9 correspondingly. The tensioning wheel 9 is arranged on the bracket 1 located at the right end. The tensioning wheel 9 is located between the input section and the detour section of the rope 8. The rope 8 is tensioned by the tensioning wheel 9.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Pipeline sandblasting laying device, characterized by: The invention comprises an outer pipe (6), an inner pipe (7) is installed inside the outer pipe (6), a sand storage space is reserved around the inner pipe (7) and between the outer pipe (6), a driving wheel (2) is arranged on the left side of the outer pipe (6), and a detour wheel (10) is arranged on the right side thereof, the center lines of the driving wheel (2) and the detour wheel (10) are respectively vertical and their positions are relatively fixed to the position of the outer pipe (6), a rope (8) is wound around the driving wheel (2) and the detour wheel (10), the rope (8) is arranged to pass through the top position of the inner space of the outer pipe (6), a sandblasting tube (5) is hung on the rope (8) at the input section and the detour section through a detachable mechanism, the sandblasting tube (5) is located at a position above the inner pipe (7), and a plurality of sand outlets (51) are arranged at the bottom end of the tube wall of each sandblasting tube (5); The detachable mechanism comprises a plurality of detachable hanging ropes (3) arranged on the rope (8) and corresponding to the sandblasting tube (5), each detachable hanging rope (3) is provided with a fixing member (4) for fixing the sandblasting tube (5), and the sandblasting tube (5) is fixedly mounted on the detachable hanging rope (3) through the fixing member (4); The length of the sandblasting tube (5) is equal to half the length of the outer pipe (6), and the inner ends of the two sandblasting tubes (5) are arranged adjacent to each other.

2. The pipeline sandblasting laying device according to claim 1 is characterized in that: The fixing member (4) is a clamp structure corresponding to the sandblasting tube (5).

3. The pipeline sandblasting arrangement device according to claim 1, characterized in that: The detachable rope gripper (3) is a caliper rope gripper.

4. The pipeline sandblasting laying device according to claim 1 is characterized in that: The inner end of the sandblasting tube (5) is an open end.

5. The pipeline sandblasting laying device according to claim 1, characterized in that: The rope (8) is provided with a tensioning wheel (9) corresponding to the rope (8). The tensioning wheel (9) is arranged adjacent to the detour wheel (10), and the tensioning wheel (9) is located between the input section and the detour section of the rope (8).

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