Multi-pipe-diameter self-adaptive pigging pry connector device

The multi-diameter adaptive pigging skid interface device solves the problem of poor pipe diameter adaptability of existing devices, realizes flexible adaptation and sealing reliability of different pipe diameters, reduces equipment replacement frequency and cost, and improves the efficiency of pigging operations.

CN224188214UActive Publication Date: 2026-05-01CHENGDU HAILUNDAN ENERGY EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU HAILUNDAN ENERGY EQUIP CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing pigging skid interface device has poor pipe diameter adaptability, requiring frequent equipment replacement and increasing equipment purchase and warehousing management costs.

Method used

A multi-diameter adaptive pigging skid interface device is designed. By adjusting the rotatable adjusting plate on the inner wall of the pipe and the adjusting device on the outer wall, the inner diameter change can be precisely controlled. Combined with the sealing ring, the sealing performance is enhanced. A flange connection structure is adopted to adapt to different pipes.

Benefits of technology

It enables the smooth passage of pigs of different pipe diameters, reduces the frequency and cost of equipment replacement, improves the versatility and sealing reliability of the equipment, and enhances the efficiency of pigging operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224188214U_ABST
    Figure CN224188214U_ABST
Patent Text Reader

Abstract

A multi-pipe-diameter self-adaptive pigging pry connector device comprises a receiving valve and an adjusting pipe. The two sides of the receiving valve communicate with connecting pipes correspondingly, and the connecting pipe on one side of the receiving valve communicates with the conveying pipeline and is used for receiving or sending out the pipe cleaner. One end of the adjusting pipe is communicated with the connecting pipe on one side of the receiving valve, and the other end is communicated with the conveying pipeline; a plurality of adjusting plates are arranged on the inner wall of the adjusting pipe in a surrounding manner; the end, close to the receiving valve, of the adjusting plate is rotationally arranged on the inner wall of the adjusting pipe. A plurality of adjusters are arranged on the outer wall of the adjusting pipe, penetrate through the side wall of the adjusting pipe and are correspondingly connected to the end, away from the receiving valve, of the adjusting plate, and the adjusters are used for controlling the adjusting plate to rotate. The problems that when conveying pipelines with different pipe diameters are connected, an existing connecting device is poor in pipe diameter adaptability, and cost is increased when special connector devices are arranged respectively are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipeline transportation equipment technology, and more specifically, to a multi-diameter adaptive pigging skid interface device. Background Technology

[0002] In pipeline transportation systems, pipeline cleaning is a crucial step in ensuring safe pipeline operation. Pipeline cleaning tools are used to clean, inspect, or repair the inner walls of pipelines. Existing pigging skid-mounted connections are typically designed for specific pipe diameters. When connecting to pipelines of different diameters, it is often necessary to replace the entire skid-mounted connection device or equip multiple sets of specialized equipment. This results in poor pipe diameter adaptability, an inability to flexibly adjust to changes in the actual pipeline diameter, frequent equipment replacements, and cumbersome and time-consuming operations. Furthermore, the need for specialized connection devices for different pipe diameters increases equipment purchase and storage management costs. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-diameter adaptive pigging skid interface device, which solves the problem that existing connection devices have poor pipe diameter adaptability when connecting pipelines of different diameters, and that costs increase when each device is equipped with a dedicated interface device.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A multi-diameter adaptive pigging skid interface device includes:

[0006] The receiving valve has connecting pipes on both sides, with one side of the connecting pipe connected to the delivery pipeline, for receiving or sending pigs.

[0007] A regulating pipe has one end connected to a connecting pipe on one side of the receiving valve and the other end connected to a conveying pipe; several regulating plates are arranged around the inner wall of the regulating pipe; the end of the regulating plate near the receiving valve is rotatably mounted on the inner wall of the regulating pipe; several regulators are provided on the outer wall of the regulating pipe and pass through the side wall of the regulating pipe, corresponding to the end of the regulating plate away from the receiving valve, and the regulators are used to control the rotation of the regulating plate.

[0008] The inner wall of the regulating tube is provided with several placement grooves, which are arranged along the axis of the regulating tube; one end of the regulating plate is rotatably disposed at one end of the placement groove.

[0009] The adjusting plate includes a telescopic main plate, a telescopic secondary plate, and a movable plate; one end of the telescopic main plate is rotatably disposed at one end of the placement groove, and the other end of the main plate has a sliding groove along the inside of the telescopic main plate; one end of the telescopic secondary plate is slidably disposed in the sliding groove, and the other end of the main plate is rotatably disposed with a movable plate; one side of the movable plate is connected to the adjuster.

[0010] The regulator includes a rotating rod and a third turntable; the side wall of the regulating tube is provided with several through holes corresponding to the regulator, and the inner wall of the through holes is provided with threads; the side wall of the rotating rod is provided with threads, one end of which is rotatably mounted on the moving plate, and the other end of which passes through the through hole of the side wall of the regulating tube and is provided with the third turntable, and the threads of the side wall of the rotating rod mesh with the threads of the inner wall of the through hole.

[0011] The regulator also includes a sealing ring; the sealing ring is sleeved on the rotating rod, and its inner wall is threaded and engages with the thread on the side wall of the rotating rod; the sealing ring is provided with a sealing gasket on the side near the regulating tube.

[0012] The end of the regulating pipe away from the receiving valve is also connected to an installation plate with a channel in the middle; the diameter of the channel in the middle of the installation plate is selected according to the size of the conveying pipe; the outer edge of one side of the installation plate is connected to the regulating pipe through a flange, and the inner edge of the other side is connected to the conveying pipe through a flange.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0014] 1. The present invention relates to a multi-diameter adaptive pigging skid interface device, which, by adjusting the rotatable adjusting plate arranged around the inner wall of the adjusting pipe and in conjunction with the adjusting device on the outer wall, can precisely control the rotation angle of the adjusting plate, thereby changing the internal diameter of the adjusting pipe. This allows pigs of different sizes to be sent out from the receiving valve, and through the adjusting pipe with the change in internal diameter, the pigs can move more smoothly to the middle of the delivery pipeline without replacing the entire interface device, thus significantly improving the versatility of the equipment.

[0015] 2. The present invention provides a multi-diameter adaptive pigging skid interface device, which strengthens the sealing performance at the connection between the rotating rod of the regulator and the through hole of the regulating pipe by setting a sealing ring at the connection between the rotating rod and the regulating pipe, and by fitting the sealing ring onto the rotating rod and the side of the sealing ring with the sealing gasket against the outer wall of the regulating pipe. This effectively prevents the medium from leaking from the connection, ensures the sealing reliability of the interface during the pipe diameter adjustment process, and reduces operational risks.

[0016] 3. The present invention relates to a multi-diameter adaptive pigging skid interface device, wherein the mounting plate at the end of the regulating pipe away from the receiving valve adopts a flange connection structure, and the diameter of the middle channel can be selected according to the size of the conveying pipeline. By replacing the mounting plate of different specifications, different pipelines can be quickly adapted, avoiding the need for the complete replacement of traditional equipment, reducing equipment investment costs and installation time, and improving the efficiency of pigging operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 It is attached Figure 1 Sectional view at point aa;

[0019] Figure 3 It is attached Figure 2 Enlarged view of point A in the middle.

[0020] In the diagram, 1-receiving valve, 101-connecting pipe, 2-adjusting pipe, 201-placement slot, 202-adjusting plate, 2021-telescopic main plate, 2022-telescopic secondary plate, 2023-moving plate, 203-regulator, 2031-rotating rod, 2032-third turntable, 2033-sealing ring, 204-mounting plate, 3-conveying pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, a multi-diameter adaptive pigging skid interface device includes a receiving valve 1 and a regulating pipe 2. Connecting pipes 101 are respectively connected to both sides of the receiving valve 1. One side of the connecting pipe 101 is connected to the delivery pipe 3 for receiving the pig, and the other side of the connecting pipe 101 is connected to the regulating pipe 2 for sending the pig through the regulating pipe 2. It should be noted that in this application, the receiving valve 1 is prior art, connected to the delivery pipe 3, and used for receiving and sending the pig; it is not an improvement of this utility model and will not be described in detail here.

[0024] One end of the regulating pipe 2 is connected to the connecting pipe 101 on one side of the receiving valve 1, and the other end is connected to the conveying pipe 3. The pig issued by the receiving valve 1 passes through the regulating pipe 2 and is then discharged from the conveying pipe 3 to perform the pigging operation. Several regulating plates 202 are arranged around the inner wall of the regulating pipe 2. The end of the regulating plate 202 near the receiving valve 1 is rotatably mounted on the inner wall of the regulating pipe 2, so that when the pig passes through the regulating pipe 2, its side wall contacts the regulating plate 202, causing the pig to move along the regulating plate 202. Due to the rotation of the regulating plate 202, its inner diameter changes, making it compatible with the conveying pipe 3 connected to the regulating pipe 2, thereby allowing the pig to move more smoothly into the conveying pipe 3 when passing through the regulating pipe 2. Several regulators 203 are provided on the outer wall of the regulating pipe 2 and pass through the side wall of the regulating pipe 2, corresponding to the end of the regulating plate 202 away from the receiving valve 1.

[0025] The regulator 203 controls the movement of one end of the regulating plate 202, thereby controlling the rotation of the regulating plate 202, and thus adjusting the inner diameter of the regulating pipe 2 to fit different sizes of pigs.

[0026] like Figure 3 As shown, in one embodiment, a plurality of placement grooves 201 are arranged around the inner sidewall of the regulating pipe 2 and are arranged along the axial direction of the regulating pipe 2; one end of the regulating plate 202 is rotatably disposed at one end of the placement groove 201, and the placement groove 201 is used to place the regulating plate 202. When one end of the regulating plate 202 moves into the placement groove 201 with the regulator 203, one side of the regulating plate 202 is flush with the inner sidewall of the regulating pipe 2, thereby avoiding interference with the movement of the pig in the regulating pipe 2;

[0027] The adjusting plate 202 includes a telescopic main plate 2021, a telescopic secondary plate 2022, and a movable plate 2023. One end of the telescopic main plate 2021 is rotatably disposed at one end of the placement groove 201, and the other end of the main plate 2021 has a sliding groove inside. One end of the telescopic secondary plate 2022 is slidably disposed in the sliding groove, so that when the telescopic secondary plate 2022 moves relative to the telescopic main plate 2021, the distance between the two plates at their opposite ends is adjusted. The other end of the telescopic secondary plate 2022 is rotatably disposed with the movable plate 2023. One side of the movable plate 2023 is connected to the adjuster 203, so that the movable plate 2023 can move radially with the adjuster 203.

[0028] When the surrounding moving plates 2023 move synchronously, the inner diameter of the channel that can pass through inside the regulating pipe 2 can be changed, thereby adapting to different sizes of pigs. When the moving plate 2023 moves radially with the regulator 203, the telescopic main plate 2021 and the telescopic secondary plate 2022 can move synchronously relative to each other to adapt to the movement of the moving plate 2023.

[0029] The regulator 203 includes a rotating rod 2031 and a third turntable 2032; the side wall of the regulating tube 2 is provided with several through holes corresponding to the regulator 203, so that the rotating rod 2031 can pass through the side wall of the regulating tube 2 along the through holes, and the inner wall of the through holes is provided with threads; the rotating rod 2031 is provided with threads on its side wall, and it meshes with the threads on the inner wall of the through holes. When the rotating rod 2031 rotates, the rotating rod 2031 moves along the through holes due to the meshing of the threads; one end of the rotating rod 2031 is rotatably mounted on the moving plate 2023, and when it rotates... When rod 2031 rotates and moves along the through hole, it can drive moving plate 2023 to move along the through hole with rotating rod 2031; the other end of rotating rod 2031 passes through the through hole in the side wall of regulating pipe 2 and is provided with a third turntable 2032, which makes it easy for the staff to hold the third turntable 2032 to rotate, thereby causing rotating rod 2031 to rotate, changing the position of moving plate 2023, thereby changing the tilt angle of telescopic main plate 2021 and telescopic secondary plate 2022 of regulating plate 202, so as to adapt to the movement of different sizes of pigs in regulating pipe 2;

[0030] Preferably, the regulator 203 further includes a sealing ring 2033, which is sleeved on the rotating rod 2031. The inner wall of the sealing ring 2033 is threaded and meshes with the thread on the side wall of the rotating rod 2031. The sealing ring 2033 is provided with a sealing gasket on the side near the regulating tube 2. By rotating the sealing ring 2033 along the rotating rod 2031 until it fits against the side wall of the regulating tube 2, the sealing gasket contacts the side wall of the regulating tube 2, thereby enhancing the sealing effect at the through hole of the rotating rod 2031 and the side wall of the regulating tube 2.

[0031] Preferably, the end of the regulating pipe 2 away from the receiving valve 1 is also connected to an installation plate 204 with a channel in the middle; the diameter of the channel in the middle of the installation plate 204 is selected according to the size of the conveying pipe 3; the outer edge of one side of the installation plate 204 is connected to the regulating pipe 2 through a flange, and the inner edge of the other side is connected to the conveying pipe 3 through a flange; by changing the diameter of the channel in the middle of the installation plate 204, different conveying pipes 3 can be adapted; so that after the moving plate 2023 moves, one side of it fits against the edge of the channel in the middle of the installation plate 204, thereby facilitating the passage of the pig.

[0032] The working principle of this embodiment is as follows:

[0033] This utility model discloses a multi-diameter adaptive pigging skid interface device. The pig enters through the connecting pipe 101 on one side of the receiving valve 1, and then the receiving valve 1 sends out the pig, which passes through the regulating pipe 2 and is discharged from the delivery pipe 3 connected to the other end of the regulating pipe 2 to perform the pigging operation. When it is necessary to adjust the inner diameter of the regulating pipe 2, the operator holds the third turntable 2032 and rotates it, which in turn causes the rotating rod 2031 to rotate, changing the position of the moving plate 2023, thereby changing the tilt angle of the telescopic main plate 2021 and the telescopic auxiliary plate 2022 of the regulating plate 202 to accommodate pigs of different sizes moving in the regulating pipe 2.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-pipe diameter self-adapting pigging pry interface device, characterized in that, include: The receiving valve has connecting pipes on both sides, with one side of the connecting pipe connected to the delivery pipeline, for receiving or sending pigs. A regulating pipe has one end connected to a connecting pipe on one side of the receiving valve and the other end connected to a conveying pipe; several regulating plates are arranged around the inner wall of the regulating pipe; the end of the regulating plate near the receiving valve is rotatably mounted on the inner wall of the regulating pipe; several regulators are provided on the outer wall of the regulating pipe and pass through the side wall of the regulating pipe, corresponding to the end of the regulating plate away from the receiving valve, and the regulators are used to control the rotation of the regulating plate.

2. The multi-diameter adaptive pigging skid interface device according to claim 1, characterized in that, The inner wall of the regulating tube is provided with several placement grooves, which are arranged along the axis of the regulating tube; one end of the regulating plate is rotatably disposed at one end of the placement groove.

3. A multi-pipe diameter self-adapting pigging socket device according to claim 2, characterized in that, The adjusting plate includes a telescopic main plate, a telescopic secondary plate, and a movable plate; one end of the telescopic main plate is rotatably disposed at one end of the placement groove, and the other end of the main plate has a sliding groove along the inside of the telescopic main plate; one end of the telescopic secondary plate is slidably disposed in the sliding groove, and the other end of the main plate is rotatably disposed with a movable plate; one side of the movable plate is connected to the adjuster.

4. A multi-pipe diameter self-adapting pigging unthreading interface device according to claim 3, characterized in that, The regulator includes a rotating rod and a third turntable; the side wall of the regulating tube is provided with several through holes corresponding to the regulator, and the inner wall of the through holes is provided with threads; the side wall of the rotating rod is provided with threads, one end of which is rotatably mounted on the moving plate, and the other end of which passes through the through hole of the side wall of the regulating tube and is provided with the third turntable, and the threads of the side wall of the rotating rod mesh with the threads of the inner wall of the through hole.

5. A multi-pipe diameter self-adapting pigging socket device according to claim 4, characterized in that, The regulator also includes a sealing ring; the sealing ring is sleeved on the rotating rod, and its inner wall is threaded and engages with the thread on the side wall of the rotating rod; the sealing ring is provided with a sealing gasket on the side near the regulating tube.

6. The multi-diameter adaptive pigging skid interface device according to claim 5, characterized in that, The end of the regulating pipe away from the receiving valve is also connected to an installation plate with a channel in the middle; the diameter of the channel in the middle of the installation plate is selected according to the size of the conveying pipe; the outer edge of one side of the installation plate is connected to the regulating pipe through a flange, and the inner edge of the other side is connected to the conveying pipe through a flange.