CN-117588616-B - Pipeline system with lockbolts and method

CN117588616BCN 117588616 BCN117588616 BCN 117588616BCN-117588616-B

Abstract

The invention belongs to the technical field of pipeline connection, and particularly provides a pipeline system with a check bolt and a method thereof, wherein the pipeline system comprises a plurality of sections of pipelines, the check bolt, monitoring equipment and a controller; the multi-section pipeline is sequentially butted through the flange plates from head to tail, the flange plates are provided with a plurality of screw holes along the circumferential direction of the pipeline, the lockbolts are uniformly distributed along the circumferential direction of the pipeline and used for penetrating through the screw holes in the adjacent flange plates to fix the adjacent pipeline, the lockbolts are provided with through holes penetrating through the lockbolts, the through holes are parallel to the axial direction of the lockbolts and are offset relative to the axial direction of the lockbolts, the fiber bragg grating sensors are fixed in the through holes, monitoring equipment is in signal connection with the fiber bragg grating sensors to monitor the strain of the fiber bragg grating sensors, one side of the pipeline along the circumferential direction is a to-be-destroyed area, a rotary power part is arranged at the lockbolts of the to-be-destroyed area and can drive the lockbolts connected with the rotary power part to rotate, and the through holes of the lockbolts outside the to-be-destroyed area are positioned at one side close to the center of the pipeline.

Inventors

ZHANG CHENGHE
Gao Boqi
SHI WEILONG
Sang Zhongzhen
GENG PENG
CHU DONG

Assignees

山东京博装备制造安装有限公司

Dates

Publication Date: 20260508
Application Date: 20231128

Claims (10)

1. A piping system having a lockbolt, comprising: The multi-section pipeline is sequentially butted head and tail through a flange plate, and the flange plate is provided with a plurality of screw holes along the circumferential direction of the pipeline; The anti-loosening bolts are uniformly distributed along the circumferential direction of the pipeline and used for penetrating through screw holes in the adjacent flanges to fix the adjacent pipelines; the anti-loose bolt is provided with a through hole penetrating through the anti-loose bolt, and the through hole is parallel to the axial direction of the anti-loose bolt and is offset relative to the axial direction of the anti-loose bolt; The monitoring equipment is in signal connection with the fiber grating sensor so as to monitor the strain of the fiber grating sensor; One side of the pipeline in the circumferential direction is a region to be destroyed, a rotary power piece is arranged at a lockbolt of the region to be destroyed, and the rotary power piece can drive the lockbolt connected with the rotary power piece to rotate, so that a through hole of the lockbolt outside the region to be destroyed is positioned at one side close to the center of the pipeline; And the controller is used for receiving the signal of the monitoring equipment and controlling the action of the rotary power piece.
2. The piping system with lockbolts of claim 1, further comprising a sump provided in the area to be destroyed at the junction of adjacent pipes to receive liquid flowing from the area to be destroyed.
3. The pipe system with lockbolt of claim 1, wherein the plane of the through-hole axis and lockbolt axis passes through the central axis of the pipe.
4. The pipeline system with the lockbolt according to claim 1, wherein the lockbolt is a stud, two ends of the stud are threaded sections, the middle of the stud is an optical axis section, the through hole is fixed with the light grating sensor in the threaded section, and the through hole is not fixed with the light grating sensor in the optical axis section.
5. The pipe system with a lockbolt according to claim 1, wherein the through hole is a stepped hole, the stepped hole includes a first hole portion provided at both ends of the lockbolt and a second hole portion provided in a middle portion of the lockbolt, and a diameter of the first hole portion is smaller than a diameter of the second hole portion.
6. The pipeline system with the lockbolt according to claim 1, further comprising balance bolts uniformly distributed along the circumferential direction of the pipeline, wherein each lockbolt is provided with one balance bolt, the balance bolts are provided with second through holes penetrating through the balance bolts, the second through holes are parallel to the axial direction of the balance bolts and offset relative to the axial direction of the balance bolts, and the second through holes of the balance bolts are positioned on one side far from the center of the pipeline.
7. The piping system with lockbolts of claim 6, wherein the plane of said second through-hole axis and balance bolt axis passes through the central axis of the pipe.
8. The piping system with lockbolts of claim 6, wherein said balance bolts and adjacent lockbolts form a bolt assembly, and the spacing between adjacent bolt assemblies is greater than the spacing between lockbolts and balance bolts in the same bolt assembly.
9. A method of using the pipe system with lockbolt of any of claims 1-8, comprising the steps of: Step 1, selecting a pipeline installation position, and selecting a region to be destroyed along the circumferential direction of the end face of an adjacent pipeline; Step 2, fixing adjacent pipelines through lockbolts, so that through holes of all lockbolts are positioned at one side close to the center of the pipeline, and finishing the installation of other structures of the pipeline system; Step 3, monitoring the strain of the fiber bragg grating sensor by using monitoring equipment, and obtaining the deformation of the lockbolt by a controller according to the strain information of the fiber bragg grating sensor; Step 4, when the controller finds that any deformation of the lockbolt is larger than a set threshold value, controlling the rotation driving piece to rotate, and rotating the lockbolt of the area to be destroyed to the side of the through hole facing away from the center of the pipeline; and 5, the outer side structural strength of the lockbolt in the area to be destroyed is smaller than the inner side structural strength, so that the lockbolt in the area to be destroyed is arched to the outer side of the pipeline and destroyed.
10. The method of claim 9, wherein in step 2, a sump is provided on one side of the area to be destroyed to receive the liquid flowing from the area to be destroyed.

Description

Pipeline system with lockbolts and method Technical Field The application belongs to the technical field of pipeline connection, and particularly provides a pipeline system with a lockbolt and a method. Background The transportation of fuels such as petroleum and natural gas depends on the laying of transportation pipelines. Taking an oil conveying pipeline as an example, the oil conveying pipeline is provided with a plurality of sections of pipelines, the adjacent sections of pipelines are in butt joint through flanges on the end surfaces, and the locking of the adjacent flanges is realized by using bolts and nuts. In order to achieve sealing of the pipe joints, it is generally necessary to place gaskets between adjacent flanges and compress the gaskets with the locking force of bolts to avoid oil leakage. The inventor has appreciated that in the process of installing the pipeline, the perpendicularity error between the bolts and the flange plate is large easily caused by the dimensional error. When the liquid or gas conveyed in the pipeline is in a high-pressure state, high-pressure fluid can exert larger pressure on the pipeline wall and the pipeline connection part, and the component force of the high-pressure can enable the bolt to bear bending moment. In addition, the axes of adjacent pipelines are not coincident due to uneven surface subsidence, and the bolts bear bending moment. The inventors have attempted to employ a light grating bolt to monitor the strain of the bolt at all times, even if maintenance personnel are notified to handle when the bolt is deformed too much. However, for a pipe partially buried in the ground or in a pipe rack, the window period from an abnormality of a signal of a light grating sensor to a destruction of a pipe connection structure and a large amount of leakage is short, and it is difficult for a maintenance person to complete maintenance of the pipe in a short time. Disclosure of Invention The invention aims to provide a pipeline system with a lockbolt and a method thereof, so as to at least solve one of the technical problems. In order to solve the above-mentioned problems in the prior art, the present invention provides, in a first aspect, a pipe system with lockbolts, including a multi-stage pipe, a plurality of lockbolts, a monitoring device, and a controller. The multi-section pipeline is in butt joint in turn through the flange plate, the flange plate is provided with a plurality of screw holes along the circumferential direction of the pipeline, the lockbolts are uniformly distributed along the circumferential direction of the pipeline and used for penetrating through the screw holes in the adjacent flange plates to fix the adjacent pipeline, the lockbolts are provided with through holes penetrating through the lockbolts, the through holes are parallel to the axial direction of the lockbolts and offset relative to the axial direction of the lockbolts, and the through holes are internally fixed with fiber bragg grating sensors. The monitoring device is in signal connection with the fiber grating sensor to monitor the strain of the fiber grating sensor, one side of the pipeline in the circumferential direction is a region to be destroyed, a rotary power piece is arranged at a check bolt of the region to be destroyed, the rotary power piece can drive the check bolt connected with the rotary power piece to rotate, so that the check bolt of the region to be destroyed is switched between one side close to the center of the pipeline and one side far away from the center of the pipeline, a through hole of the check bolt outside the region to be destroyed is positioned at one side close to the center of the pipeline, and the controller is used for receiving the signal of the monitoring device and controlling the rotary power piece to act. In a second aspect, the present invention also provides a method for using a pipeline system, for implementing the pipeline system in the first aspect, where the method for using a pipeline system includes the following steps: Step 1, selecting a pipeline installation position, and selecting a region to be destroyed along the circumferential direction of the end face of an adjacent pipeline; Step 2, fixing adjacent pipelines through lockbolts, so that through holes of all lockbolts are positioned at one side close to the center of the pipeline, and finishing the installation of other structures of the pipeline system; Step 3, monitoring the strain of the fiber bragg grating sensor by using monitoring equipment, and obtaining the deformation of the lockbolt by a controller according to the strain information of the fiber bragg grating sensor; Step 4, when the controller finds that any deformation of the lockbolt is larger than a set threshold value, controlling the rotation driving piece to rotate, and rotating the lockbolt of the area to be destroyed to the side of the through hole facing away from the center of the pipeline; and 5, th