Device for mounting or dismounting part of equipment components on continuously running pipeline under pressure to intrude into pipeline
By combining the sealed cylinder and the advance frame, the high cost and inconvenience of equipment intrusion installation during pipeline transportation are solved, enabling safe disassembly and assembly while the pipeline is in operation, simplifying the operation process and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2024-11-12
- Publication Date
- 2026-05-12
AI Technical Summary
In existing technologies, when some components of equipment need to be inserted into the pipeline during pipeline transportation, the medium must be vented before installation, resulting in high costs and inconvenience. Furthermore, existing devices have complex structures and are inconvenient to operate.
The equipment is installed and disassembled while the pipeline is in operation by using components such as a sealed cylinder, an advance frame, and an advance plate. The installation and disassembly are achieved through the sealing and balanced push of the advance frame. The connection between the sealed cylinder and the valve, as well as the pushing and limiting functions of the advance frame, ensure the safe installation and disassembly of the equipment.
It enables safe installation and disassembly of equipment while the pipeline is in operation, reduces costs, simplifies operating procedures, and extends equipment lifespan.
Smart Images

Figure CN122007882A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of pipeline intrusion installation and dismantling technology, specifically relating to a device for intruding into a pipeline to install or dismantle a portion of equipment components under pressure on a continuously operating pipeline. Background Technology
[0002] Pipeline transportation is the primary mode of oil and gas transportation, characterized by its economy, safety, and efficiency. With the gradual advancement of integrity management technology, Internet of Things (IoT) technology, and new centralized procurement technologies, oil and gas gathering and transportation companies need to progressively upgrade their systems and install new equipment. Some of this equipment requires partial insertion into the pipeline to function, such as process medium nozzles and temperature sensors.
[0003] Because some components of the equipment need to penetrate the pipeline, suitable connectors must be pre-installed after drilling holes in the pipeline before installation. The equipment is then inserted into the pipeline through the connectors and locked in place to complete the installation. To accomplish this, the medium in the pre-installed equipment pipeline section must be vented and purged to meet installation standards before installation and commissioning can proceed. This process incurs significant costs for the pipeline transport medium, purging gas, safety measures, and environmental treatment. To achieve lean management and reduce equipment construction and installation costs, a device capable of pressurized installation and disassembly of the equipment needs to be developed.
[0004] Existing technology ZL202121114547.6 discloses a live installation and disassembly device for pipeline transportation. This device utilizes wedge-shaped slots and clamping screws to ensure the stability of the sensor tail, and can accommodate a wide range of sensor diameters. By protecting the sensor probe and cables, it reduces damage to the sensor during installation, extending the sensor's lifespan. Live operation is achieved by using a ball valve channel to control pressure in a timely manner. However, this screw-driven pressure relief tool has a complex structure, making on-site operation very inconvenient. Summary of the Invention
[0005] To address the aforementioned problems, this invention proposes a device for pressurized installation or disassembly of equipment components within a continuously operating pipeline. The device includes an equipment intrusion pipe, a sealing cylinder, an advance frame, an advance plate, a pre-installed pipe, and a valve. The valve is installed on the pre-installed pipe and is sealed to the sealing cylinder. An advance frame is installed on the pre-installed pipe on both sides of the valve, and the advance frame is connected to the advance plate. The advance plate is fitted onto the equipment intrusion pipe, and the equipment intrusion pipe passes through the sealing cylinder and the valve before being installed into the pre-installed pipe.
[0006] Furthermore, the sealing cylinder includes a lower sealing ring cavity and a lower sealing gland. The lower sealing ring cavity has internal and external threads. The external thread is connected to the valve, and the internal thread is used for the lower sealing gland to be screwed in to tighten the sealing ring.
[0007] Furthermore, the sealing cylinder also includes an upper sealing ring cavity, an upper sealing gland, and an internal thread in the upper sealing ring cavity, the internal thread being used for screwing the upper sealing gland in to tighten the sealing ring.
[0008] Furthermore, the sealing cylinder also includes a device locking sleeve cover, with an external thread in the upper sealing ring cavity, the external thread being connected to the device locking sleeve cover.
[0009] Furthermore, the sealing cylinder also includes an equipment locking sleeve, with the equipment locking sleeve cover and the upper sealing cover being provided with the equipment locking sleeve cover.
[0010] Furthermore, the device locking sleeve is a hollow conical thin-walled steel ring, used to be fitted onto the outer wall of the pipe into which the device needs to be inserted.
[0011] Furthermore, the feed frame includes a feeder fixing sleeve, a feeder screw, and a feeder screw nut. The feeder fixing sleeve is an openable circular sleeve with a fixing hole at its lower end. After being closed and installed on the pre-installed pipe, the feeder fixing sleeve is fixed to the pre-installed pipe by inserting bolts into the fixing hole and locking it. A feeder screw is installed above the feeder fixing sleeve, and a feeder screw nut is installed on the feeder screw. A feeder plate is installed below the feeder screw nut, which drives the feeder plate to move up and down on the screw. When it moves downward, the equipment can be installed; when it moves upward, the equipment can be disassembled.
[0012] Furthermore, the feed frame also includes a feed limit nut, which is installed on the feed screw to prevent the feed plate from traveling too far and to prevent the equipment from intruding into the pipe and being pushed excessively into the pre-installed pipe.
[0013] Furthermore, each single plate of the feed plate consists of a fitting head and a fitting groove. After the two single plates are inserted into each other, the middle equipment channel blocks the body part of the equipment entering the pipeline. Fixing holes are provided on the fitting head and the fitting groove. Bolts are inserted into the fixing holes to lock the two single plates.
[0014] Furthermore, it also includes a blowout preventer, which includes a blowout preventer base foot and a blowout preventer pressure plate. The blowout preventer pressure plate is disposed on the blowout preventer base foot, and the blowout preventer base foot is fixed to the feed plate through the fixing hole. The blowout preventer pressure plate covers the upper end of the equipment intrusion pipe.
[0015] The beneficial effects of this invention are as follows: This invention uses a sealed cavity to ensure the sealing of the equipment during the disassembly and assembly process, and uses a guide frame to push the equipment in a balanced manner. The equipment can be installed into the pipeline through a pre-installed valve while the pipeline is in operation, or the equipment already installed in the sealed cylinder can be removed. This invention makes up for the lack of installation methods for equipment in continuous production processes where some components need to be inserted into the pipeline. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the sealing cylinder structure of the present invention;
[0017] Figure 2 This is a schematic diagram of the feed frame structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the feed plate structure of the present invention;
[0019] Figure 4 This is a schematic diagram of the blowout shield structure of the present invention;
[0020] Figure 5 This is a schematic diagram of the combined structure of the sealing cylinder and the equipment intrusion pipe of the present invention;
[0021] Figure 6 This is a schematic diagram of the structure of the valve on a pre-installed pipeline, which is part of the assembly of the present invention.
[0022] Figure 7 This is a schematic diagram of the present invention's feed frame installed on a pre-installed pipe;
[0023] Figure 8 This is a schematic diagram of the present invention with the feed plate installed on the upper end of the load-bearing structure of the equipment intrusion pipe;
[0024] Figure 9 This is a schematic diagram of the structure of the device of the present invention, which enters the pre-installed pipe when the advance plate moves to the position of the advance device limit nut.
[0025] Figure 10 This is a schematic diagram of the structure of the device of the present invention, which is inserted into the pre-installed pipe and then screwed shut with a sealing cap.
[0026] Figure 11 This is a schematic diagram of the structure of the locking sleeve cap of the device after it has been inserted into the pre-installed pipe.
[0027] Figure 12 This is a schematic diagram of the structure of the device of the present invention, which is inserted into a pre-installed pipe and then the blowout shield is assembled on the advance plate to cover the top of the device entering the pipe.
[0028] 1. Sealing cylinder; 2. Lower sealing ring cavity; 3. Lower sealing gland; 4. Upper sealing ring cavity; 5. Upper sealing gland; 6. Equipment locking sleeve; 7. Equipment locking sleeve gland; 17. Feed frame; 8. Feeder fixing sleeve; 9. Feeder screw; 10. Feeder screw nut; 11. Feeder limit nut; 12. Feed plate; 12-1. Fitting head; 12-2. Fitting groove; 12-3. Equipment channel; 12-4. Fixing hole; 13. Blowout shield; 13-1. Blowout shield base; 13-2. Blowout shield pressure plate; 14. Equipment intrusion pipe; 14-1. Load-bearing structure; 15. Pre-installed pipe; 16. Valve. Detailed Implementation
[0029] To make the technical means and objectives of this invention easier to understand, the invention is further described below in conjunction with specific embodiments:
[0030] Example 1
[0031] An apparatus for pressurized installation or disassembly of equipment components into a continuously operating pipeline includes an equipment intrusion pipe 14, a sealing cylinder 1, an advance frame 17, an advance plate 12, a pre-installed pipe 15, and a valve 16. The valve 16 is installed on the pre-installed pipe 15 and is sealed to the sealing cylinder 1. The advance frame 17 is installed on the pre-installed pipe 15 on both sides of the valve 16 and is connected to the advance plate 12. The advance plate 12 is sleeved on the equipment intrusion pipe 14. The equipment intrusion pipe 14 passes through the sealing cylinder 1 and the valve 16 and is installed into the pre-installed pipe 15.
[0032] The feed plate 12 is fitted onto the upper end of the load-bearing structure 14-1 of the equipment intrusion pipe 14. Under the downward action of the feed frame 17 pushing the feed plate 12, the lower end of the equipment intrusion pipe 14 is sequentially inserted into the sealing cylinder 1, valve 16, and pre-installed pipe 15 to achieve pressurized installation. The feed plate 12 is fitted onto the lower end of the load-bearing structure 14-1 of the equipment intrusion pipe 14. Under the upward action of the feed frame 17 pushing the feed plate 12, the lower end of the equipment intrusion pipe 14 is sequentially pulled out from the pre-installed pipe 15, valve 16, and sealing cylinder 1 to achieve pressurized disassembly.
[0033] The sealing cylinder 1 includes a lower sealing ring cavity 2 and a lower sealing gland 3. The lower sealing ring cavity 2 has internal and external threads. The external thread is connected to the valve 16, and the internal thread is used for the lower sealing gland 3 to be screwed in to tighten the sealing ring.
[0034] The sealing cylinder 1 further includes an upper sealing ring cavity 4, an upper sealing cover 5, and an internal thread on the upper sealing ring cavity 4. The internal thread is used for screwing the upper sealing cover 5 in to tighten the sealing ring.
[0035] The sealing cylinder 1 also includes a device locking sleeve cover 7, and the upper sealing ring cavity 4 has an external thread, which is connected to the device locking sleeve cover 7.
[0036] The sealing cylinder 1 also includes an equipment locking sleeve 6, which is disposed between the equipment locking sleeve cover 7 and the upper sealing cover 5.
[0037] The device locking sleeve 6 is a hollow conical thin-walled steel ring, which is used to fit onto the outer wall of the device intrusion pipe 14 that needs to be inserted into the pipe.
[0038] The feed frame 17 includes a feeder fixing sleeve 8, a feeder screw 9, and a feeder screw nut 10. The feeder fixing sleeve 8 is an openable circular sleeve with a fixing hole at its lower end. After being closed and installed on the pre-installed pipe 15, the feeder fixing sleeve 8 is fixed on the pre-installed pipe 15 by inserting bolts into the fixing hole and locking it. The feeder screw 9 is installed above the feeder fixing sleeve 8, and the feeder screw nut 10 is installed on the feeder screw 9. The feeder plate 12 is installed below the feeder screw nut 10, which drives the feeder plate 12 to move up and down on the screw. When it moves downward, the equipment can be installed, and when it moves upward, the equipment can be disassembled.
[0039] The feed frame 17 also includes a feed limit nut 11, which is installed on the feed screw 9 to prevent the feed plate from traveling too far and to prevent the equipment from intruding into the pipe 14 and being pushed excessively into the pre-installed pipe 15.
[0040] Each single plate of the feed plate 12 consists of a fitting head 12-1 and a fitting groove 12-2. After the two single plates are inserted into each other, the middle equipment channel 12-3 blocks the body of the equipment intrusion pipe 14. The fitting head 12-1 and the fitting groove 12-2 are provided with fixing holes 12-4. Bolts are inserted into the fixing holes 12-4 to lock the two single plates.
[0041] It also includes a blowout preventer 13, which includes a blowout preventer base foot 13-1 and a blowout preventer pressure plate 13-2. The blowout preventer pressure plate 13-2 is disposed on the blowout preventer base foot 13-1. The blowout preventer base foot 13-1 has a fixing hole and is fixed to the feed plate 12 through the fixing hole. The blowout preventer pressure plate 13-2 covers the upper end of the equipment intrusion pipe 14.
[0042] Example 2
[0043] A device for installing or removing equipment components into a continuously operating pipeline under pressure, the device comprising: a sealing cylinder 1, a lower sealing ring cavity 2, a lower sealing gland 3, an upper sealing ring cavity 4, an upper sealing gland 5, an equipment locking sleeve 6, an equipment locking sleeve gland 7, an advance tool fixing sleeve 8, an advance tool screw 9, an advance tool screw nut 10, an advance tool limit nut 11, an advance plate 12, and a blowout preventer 13.
[0044] The feed tool fixing sleeve 8 is selected according to the diameter of the pipe to be installed, and the sealing cylinder 1 is selected according to the equipment to be installed and the pre-installed valves.
[0045] like Figure 1 The image shows part 1 of the sealing cylinder, which consists of a lower sealing ring cavity 2, a lower sealing gland 3, an upper sealing ring cavity 4, an upper sealing gland 5, an equipment locking sleeve 6, and an equipment locking sleeve gland 7.
[0046] The outer diameter of the lower sealing gland 3 is equal to the inner diameter of the external thread of the lower sealing ring cavity 2 of the cylinder, so as to prevent the cylinder from being unable to screw into the prefabricated valve 16.
[0047] The lower sealing ring cavity has internal and external threads. The external thread is used to fix it to the pre-supported valve, and the internal thread is used to screw the lower sealing gland in to tighten the sealing ring.
[0048] The upper sealing ring cavity 4 has internal and external threads. The external thread is used to fix it to the equipment locking sleeve cover 7, and the internal thread is used to screw the upper sealing cover 5 in to tighten the sealing ring.
[0049] The equipment locking sleeve 6 is a hollow conical thin-walled steel ring used to fit on the outer pipe wall of the equipment that needs to be inserted into the pipe. When the equipment locking sleeve cover 7 is tightened, it deforms to strengthen the fixation of the equipment inserted into the pipe and prevent the equipment from being pushed out of the sealing cylinder by the pressure of the medium in the pipeline, which would cause a production accident.
[0050] like Figure 2 The part shown is the feed frame 17, which consists of the feeder fixing sleeve 8, the feeder screw 9, the feeder screw nut 10, and the feeder limit nut 11.
[0051] The feed tool fixing sleeve 8 is an openable circular sleeve. The size is selected according to the required pipe size. It has a fixing hole at the lower end. After closing and installing on the pipe, the fixing sleeve is secured to the pipe by inserting bolts into the fixing hole and tightening. A lead screw is installed above the fixing sleeve.
[0052] The feed screw 9 is used to install the screw nut and the limit nut.
[0053] The feed plate 12 is installed below the feed screw nut 10, which drives the feed plate 12 to move up and down on the screw. When it moves downward, the equipment can be installed, and when it moves upward, the equipment can be disassembled.
[0054] To prevent damage to the equipment caused by pushing it too far into the pipe, a limit nut 11 is installed on the lead screw. The position of the limit nut 11 can prevent the feed plate 12 from traveling too far.
[0055] like Figure 3 The image shows the feed plate 12, which consists of two interlocking veneers.
[0056] Each panel consists of a fitting head and a fitting slot. After the two panels are inserted, the circular channel in the middle can lock the upper part of the load-bearing structure of the equipment, or it can be directly pressed on the top of the equipment without a rear end tube structure to drive it towards the center of the pipe to complete the installation.
[0057] The two plates can also be clamped onto the lower part of the body tube of the equipment's load-bearing structure, driving the equipment to move away from the center of the pipeline to complete the disassembly work.
[0058] The holes in the feed plate body and the fitting head can be used to insert bolts to lock the two feed plates, or to fix the blowout shield to the plate body.
[0059] like Figure 4 The blowout preventer 13 is shown. The blowout preventer 13 is mainly composed of a blowout preventer base foot 13-1 and a blowout preventer pressure plate 13-2. The blowout preventer base foot 13-1 has two fixing holes, which can be fixed to the push pressure plate.
[0060] The blowout preventer plate 13-2 can fix the equipment in place and prevent it from spraying upwards and causing injury to personnel from being hit by objects.
[0061] The process of implementing a device that allows for the pressurized installation or disassembly of equipment components within a continuously operating pipeline is as follows:
[0062] 1. For example Figure 5 As shown: Insert the equipment into the pipeline end in sequence, then insert the equipment locking sleeve cover, the equipment locking sleeve, the upper sealing cover, the upper sealing ring, the sealing cylinder, the lower sealing ring, and the lower sealing cover.
[0063] 2. Tighten the upper and lower sealing caps into the lower sealing ring cavity. The tightness should be such that a normal adult can push the equipment forward with moderate force.
[0064] 3. For example Figure 6 As shown, the equipment and sealing cylinder assembly are installed onto the pre-installed pipeline valve.
[0065] 4. For example Figure 7 As shown, the feed frame is installed on the pipes on both sides of the assembly.
[0066] 5. For example Figure 8 As shown, first screw the lead screw nut into the lead screw, then insert the two feed plates into the upper end of the equipment's load-bearing structure and fix them with bolts, and then fix the feed plates to the lead screw nut through their foot fixing holes.
[0067] 6. For example Figure 9 As shown, apply force simultaneously to the lead screw nuts on both sides of the feed frame to push the equipment into the pipe until it reaches the pre-calculated limit nut position.
[0068] 7. For example Figure 10 As shown, lift the unscrewed equipment locking sleeve cover and equipment locking sleeve, and screw the equipment cover completely in to ensure a tight seal.
[0069] 8. For example Figure 11 As shown, when the locking sleeve cap is screwed on, the locking sleeve will deform, thereby fixing the equipment and preventing it from being pushed out of the sealed cavity by the medium in the pipeline.
[0070] 9. For example Figure 12As shown, the disassembly process is the reverse operation. It should be noted that the feed plate should be clamped under the equipment and a blowout shield should be installed.
[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A device for pressurized installation or disassembly of components within a continuously operating pipeline, characterized in that, The equipment includes an ingress pipe (14), a sealing cylinder (1), an advance frame (17), an advance plate (12), a pre-installed pipe (15), and a valve (16). The valve (16) is installed on the pre-installed pipe (15), and the valve (16) is sealed to the sealing cylinder (1). The advance frame (17) is installed on the pre-installed pipe (15) on both sides of the valve (16), and the advance frame (17) is connected to the advance plate (12). The advance plate (12) is fitted on the equipment ingress pipe (14), and the equipment ingress pipe (14) passes through the sealing cylinder (1) and the valve (16) and is installed into the pre-installed pipe (15).
2. The apparatus as described in claim 1 for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline, characterized in that... The sealing cylinder (1) includes a lower sealing ring cavity (2) and a lower sealing gland (3). The lower sealing ring cavity (2) has internal and external threads. The external thread is connected to the valve (16), and the internal thread is used for the lower sealing gland (3) to be screwed in to press the sealing ring.
3. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 2, characterized in that... The sealing cylinder (1) also includes an upper sealing ring cavity (4) and an upper sealing cover (5). The upper sealing ring cavity (4) has an internal thread, which is used for the upper sealing cover (5) to be screwed in to press the sealing ring.
4. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 3, characterized in that... The sealing cylinder (1) also includes a device locking sleeve cover (7), and the upper sealing ring cavity (4) has an external thread, which is connected to the device locking sleeve cover (7).
5. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 4, characterized in that... The sealing cylinder (1) also includes an equipment locking sleeve (6), and the equipment locking sleeve (6) is disposed between the equipment locking sleeve cover (7) and the upper sealing cover (5).
6. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 5, characterized in that... The equipment locking sleeve (6) is a hollow conical thin-walled steel ring used to fit on the outer wall of the equipment intrusion pipe (14) that needs to be inserted into the pipe.
7. The apparatus as described in claim 1 for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline, characterized in that... The feed frame (17) includes a feed device fixing sleeve (8), a feed device screw (9), and a feed device screw nut (10). The feed device fixing sleeve (8) is an openable circular sleeve with a fixing hole at its lower end. After being closed and installed on the pre-installed pipe (15), the feed device fixing sleeve (8) is fixed on the pre-installed pipe (15) by inserting bolts into the fixing hole and locking it. The feed device screw (9) is installed above the feed device fixing sleeve (8), and the feed device screw nut (10) is installed on the feed device screw (9). The feed plate (12) is installed below the feed device screw nut (10), which drives the feed plate (12) to move up and down on the screw. When it moves downward, the equipment can be installed, and when it moves upward, the equipment can be disassembled.
8. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 7, characterized in that... The feed frame (17) also includes a feed limit nut (11), which is installed on the feed screw (9) to prevent the feed plate from traveling too far and to prevent the equipment from intruding into the pipe (14) and being pushed excessively into the pre-installed pipe (15).
9. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 1, characterized in that, Each single plate of the advance plate (12) consists of a fitting head (12-1) and a fitting groove (12-2). After the two single plates are inserted into each other, the middle equipment channel (12-3) jams the body part of the equipment intrusion pipe (14). Fixing holes (12-4) are provided on the fitting head (12-1) and the fitting groove (12-2). Bolts are inserted into the fixing holes (12-4) to lock the two single plates.
10. The apparatus for pressurized installation or disassembly of partial equipment components within a continuously operating pipeline as described in claim 1, characterized in that, It also includes a blowout preventer (13), which includes a blowout preventer base foot (13-1) and a blowout preventer pressure plate (13-2). The blowout preventer pressure plate (13-2) is set on the blowout preventer base foot (13-1). The blowout preventer base foot (13-1) has a fixing hole. The blowout preventer base foot (13-1) is fixed to the feed plate (12) through the fixing hole. The blowout preventer pressure plate (13-2) covers the upper end of the equipment intrusion pipe (14).