Simple pig launching device for pipelines in pipe gallery

Abstract

The utility model belongs to the field of mechanical equipment, and relates to a simple pig launcher for pipe gallery pipelines, comprising a shell, a flange ring is provided at the rear end of the shell, an end cover is provided on the flange ring, and a vent valve, a pressure measuring assembly and an air inlet valve are provided on the shell. The utility model is made of common materials, has a simple structure, low production cost, safe and fast operation, and can be installed on the pipe gallery due to its light weight and small size, and is used for pig launch in pig cleaning operations and water pressure test, effectively improving the efficiency and quality of pig cleaning operations.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical equipment and relates to a simple pipe cleaning device launching device for pipe corridor pipelines. Background Art

[0002] During the construction of long-distance pipelines in the corridor, some debris will be left inside due to many reasons, which will affect the quality of the conveying medium and even bring hidden dangers to production. In the past, water flushing, steam purging and finished oil cleaning methods were used and they needed to be repeated many times, which was costly and wasteful. In order to solve this problem, a ball-pushing technology was used to clean the pipeline. The existing Chinese invention patent with publication number CN109340504A, a continuous pig sending device includes a cylinder and a pig launching assembly, a plurality of pigs are installed in the cylinder, and the outlet of the cylinder is used to connect with the pipeline to be cleaned; the pig launching assembly The component comprises a medium inlet pipe, a confluence pipe and a diversion pipe, wherein the medium inlet pipe is communicated with the inlet of the confluence pipe, a plurality of diversion pipes are connected in parallel on the pipe wall of the confluence pipe, the outlet of each diversion pipe is communicated with the interior of the cylinder, and at least one diversion pipe is distributed in front of each pipe cleaner, and the medium can be introduced into the medium inlet pipe to push the pipe cleaner into the pipeline to be cleaned; a one-way blocking mechanism is installed on the inner wall of the cylinder in front of each pipe cleaner, and the one-way blocking mechanism is used to prevent the pipe cleaner from moving in a direction close to the inlet of the cylinder.

[0003] The prior art has the following technical defects:

[0004] The ball-pushing pipe cleaning technology has been relatively mature in the application of long-distance buried petroleum and petrochemical pipelines. The pipe cleaning launcher is placed on the ground of the station. Generally, the pipe cleaning launcher is large in size. Compared with buried pipelines, the above-ground pipelines are short in distance and are mainly located on the pipe gallery. Therefore, it is necessary to design and manufacture a small, light and easy-to-operate pipe cleaning launcher. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a simple pig launching device for pipelines in a pipe gallery.

[0006] The utility model discloses a simple pipe cleaner launching device for pipe gallery pipelines, comprising a shell, a flange ring is arranged at the rear end of the shell, an end cover is arranged on the flange ring, and a vent valve, a pressure measuring assembly and an air inlet valve are arranged on the shell.

[0007] Working process or working principle:

[0008] When in use, the pipe cleaner is assembled to the front end of the shell, and then the end cover is tightened to form a sealed state inside the shell, and then compressed air is injected into the shell through the air inlet valve. The pipe cleaner is pushed into the pipeline under the action of the air pressure difference and continues to move forward inside, thereby realizing the pipe cleaning operation. When the pipe cleaning operation is completed or an abnormal situation occurs during the pipe cleaning operation, the compressed air in the shell can be discharged through the vent valve to reduce the internal pressure of the shell. During operation, the pressure inside the shell is monitored in real time through the pressure measuring component, and the air inlet valve or the vent valve is adjusted according to the specific situation.

[0009] The diameter of the front end of the shell is smaller than the diameter of the rear end. The small diameter of the front end of the shell facilitates access to the cleaning pipeline and facilitates the connection of the pipe cleaner.

[0010] The flange ring and the end cover are quick-opening flange components, and quick filling of the pipe cleaner and quick closing of the shell can be achieved by arranging the quick-opening flange components.

[0011] The air inlet valve is arranged at the rear end near the shell, the air vent valve is arranged at the front end near the shell, the pressure measuring assembly is arranged between the air inlet valve and the air vent valve, the pressure measuring assembly, the air inlet valve and the air vent valve all adopt gate valves, and short pipes are welded front and back, and are connected to the shell by welding above the shell. A pressure gauge is also provided on the pressure measuring assembly.

[0012] The front end diameter of the shell is 200-240 mm, and the rear end diameter is 300-350 mm.

[0013] The shell is made of a steel pipe, and the shell is made by drawing a strip at one end of the steel pipe, and the end of the strip is welded together.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is made of common materials, has a simple structure, low production cost, small required working space, safe and quick operation, and can be installed on a pipe gallery due to its light weight and small size, for pipe cleaning operations and water pressure test pig launching, effectively improving the efficiency and quality of pipe cleaning operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a working assembly schematic diagram of an embodiment of the utility model.

[0018] In the figure: 1. Pipe cleaner; 2. Shell; 3. Vent valve; 4. Pressure measuring assembly; 5. Inlet valve; 6. Flange ring; 7. Pipeline. DETAILED DESCRIPTION

[0019] Example 1

[0020] like Figure 1-Figure 2 As shown, the simple pipe cleaner 1 launching device for the pipe gallery pipeline described in the utility model comprises a shell 2, a flange ring 6 is provided at the rear end of the shell 2, an end cover is provided on the flange ring 6, and a vent valve 3, a pressure measuring assembly 4 and an air inlet valve 5 are provided on the shell 2; the front end diameter of the shell 2 is smaller than the rear end diameter, and the small diameter at the front end of the shell 2 is convenient for access to the cleaning pipeline 7 and convenient for connection of the pipe cleaner 1; the flange ring 6 is connected to the end cover through a quick-opening flange assembly, and the quick-opening flange assembly can be provided to realize the rapid filling of the pipe cleaner 1 and the rapid closing of the shell 2; the The intake valve 5 is arranged at the rear end near the shell 2, the exhaust valve 3 is arranged at the front end near the shell 2, and the pressure measuring assembly 4 is arranged between the intake valve 5 and the exhaust valve 3. The pressure measuring assembly 4, the intake valve 5 and the exhaust valve 3 all adopt gate valves, and short pipes are welded at the front and back, and are connected to the shell 2 by welding above the shell 2. A pressure gauge is also provided on the pressure measuring assembly 4; the front end diameter of the shell 2 is 200-240mm, and the rear end diameter is 300-350mm; the shell 2 is made of a steel pipe, and the shell 2 is made by drawing a strip at one end of the steel pipe, and the drawn end is welded close together.

[0021] Working process or working principle:

[0022] When in use, first assemble the shell 2 to the port of the pipe 7 to be cleaned, then assemble the pipe cleaner 1 to the front end of the shell 2 and manually tighten it, and by tightening the end cover of the quick-opening flange group, the inside of the shell 2 is sealed, and then compressed air is injected into the shell 2 through the air inlet valve 5. The pipe cleaner 1 is pushed into the pipe 7 under the action of the front and rear air pressure difference and continues to move forward inside, thereby realizing the pipe cleaning operation. When the pipe cleaning operation is completed or an abnormal situation occurs during the pipe cleaning operation, the compressed air in the shell 2 can be discharged through the vent valve 3, thereby reducing the internal pressure of the shell 2. During operation, the pressure inside the shell 2 is monitored in real time through the pressure measuring component 4, and the air inlet valve 5 or the vent valve 3 is adjusted according to the specific situation.

[0023] The utility model is made of common materials, has a simple structure, low production cost, safe and quick operation, and can be installed on a pipe gallery due to its light weight and small size, and is used for pipe cleaning operations and water pressure test pig 1 launch, effectively improving the efficiency and quality of pipe cleaning operations.

[0024] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A simple pig launching device for pipelines in a pipe gallery, characterized in that: The invention comprises a shell (2), wherein a flange ring (6) is provided at the rear end of the shell (2), an end cover is provided on the flange ring (6), and a vent valve (3), a pressure measuring assembly (4) and an air inlet valve (5) are provided on the shell (2).

2. The simple pig launching device for pipelines in a pipe gallery according to claim 1 is characterized in that: The front end diameter of the shell (2) is smaller than the rear end diameter.

3. The simple pig launching device for pipelines in a pipe gallery according to claim 2 is characterized in that: The flange ring (6) is connected to the end cover via a quick-opening flange assembly.

4. The simple pig launching device for pipelines in a pipe gallery according to claim 3 is characterized in that: The air inlet valve (5) is arranged at the rear end close to the shell (2), the air discharge valve (3) is arranged at the front end close to the shell (2), and the pressure measuring component is arranged between the air inlet valve (5) and the air discharge valve (3).

5. The simple pig launching device for pipelines in a pipeline gallery according to any one of claims 2 to 4, characterized in that: The front end diameter of the shell (2) is 200-240 mm, and the rear end diameter is 300-350 mm.

6. The simple pig launching device for pipelines in a pipe gallery according to claim 5 is characterized in that: The shell (2) is made of a steel pipe.

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