Simulation platform for simulating shaft vibration, shaft displacement and key phase of compressor
By designing a simulation platform to simulate compressor shaft vibration, shaft displacement, and key phase, the problem of low installation accuracy of compressor condition monitoring probes was solved, enabling accurate measurement of compressor condition monitoring and safe and stable operation of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAQING OILFIELD CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-05
AI Technical Summary
The lack of a simulation platform in the existing technology leads to low installation accuracy of compressor condition monitoring probes, reduced measurement performance, large signal fluctuations, and even probe damage and system malfunctions, affecting the safe production of the equipment.
Design a simulation platform to simulate compressor shaft vibration, shaft displacement and key phase, including a key phase monitoring probe, a vibration monitoring probe and a displacement monitoring probe mounting bracket, combined with an adjustable vibratory plate and a counterweight, for simulating the vibration, displacement and key phase parameter measurement of compressor shaft.
The precise installation and commissioning of the compressor condition monitoring probe were achieved, which improved measurement performance, reduced signal fluctuations, and ensured the safe and stable operation of the device.
Smart Images
Figure CN224203751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of simulation platform technology, specifically to a simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase. Background Technology
[0002] The compressor condition monitoring eddy current sensor system consists of three parts: a probe, an extension cable, and a preamplifier. In the existing installation, commissioning, fault tracing, troubleshooting, and instrument maintenance of compressor condition monitoring eddy current sensor systems, the lack of a simulation platform for shaft vibration, shaft displacement, and key phase can prevent the simulation of practical operations such as on-site installation, commissioning, and fault repair. This results in low accuracy and degraded measurement performance of the compressor condition monitoring probe after installation, large fluctuations in the monitoring signal, and even probe damage, leading to system alarms, interlock malfunctions, and shutdowns, seriously affecting the safe and stable production of the unit.
[0003] Currently, the oilfield and natural gas company's 3500 compressor condition monitoring and protection system maintains real-time communication with the System1 condition monitoring and fault diagnosis software platform. Communication data is used for shaft dynamic balance analysis and equipment fault analysis and diagnosis. The alarm and interlock shutdown values set by the instrument monitoring are based on the technical parameters provided by the equipment. However, due to the lack of a simulation platform, the installation environment of the condition monitoring probes cannot be simulated. Therefore, during unit maintenance, only a TK3-2E portable vibration calibrator is typically used to perform static and dynamic performance tests on the probes. During fault analysis and probe installation, gap voltage calculation methods are used for debugging, resulting in a serious disconnect from actual on-site operations and substandard probe installation accuracy. Summary of the Invention
[0004] In view of this, the present invention provides a simulation platform for simulating compressor shaft vibration, shaft displacement and key phase, which solves the problem of low installation accuracy of compressor condition monitoring probes due to the inability to simulate on-site installation, debugging and maintenance faults due to the lack of a simulation platform.
[0005] To achieve the above-mentioned objectives, the simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase includes:
[0006] A compressor shaft connected to a speed-regulating motor, wherein a key phase mark and a displacement monitoring disk are provided on the compressor shaft;
[0007] Centered on the compressor shaft, mounting brackets for key phase monitoring probes, vibration monitoring probes, and displacement monitoring probes are arranged at intervals along the axial direction of the compressor shaft. Key phase monitoring probes, vibration monitoring probes, and displacement monitoring probes are correspondingly mounted on the mounting brackets for key phase monitoring probes, vibration monitoring probes, and displacement monitoring probes. The key phase marking corresponds to the key phase monitoring probe.
[0008] An adjustable vibratory plate is mounted on the compressor shaft. The edge of the adjustable vibratory plate is evenly distributed with counterweight holes, and counterweight blocks are connected to all or some of the counterweight holes.
[0009] In this disclosure and possible embodiments, the key phase monitoring probe mounting bracket, vibration monitoring probe mounting bracket and displacement monitoring probe mounting bracket are hexagonal or octagonal in shape, and mounting holes adapted to the probe mounting sleeve are provided on at least one side of the bracket, and monitoring probes are mounted on all or part of the mounting holes.
[0010] In this disclosure and possible embodiments, the shaft vibration monitoring probe consists of a horizontal monitoring probe and a vertical monitoring probe.
[0011] In this disclosure and possible embodiments, the bond phase mark is a rectangular groove.
[0012] In this disclosure and possible embodiments, the speed-regulating motor is connected to the compressor shaft via a coupling.
[0013] In this disclosure and possible embodiments, bearing supports are connected to both ends of the compressor shaft.
[0014] In this disclosure and possible embodiments, the bearing support is connected to the compressor shaft via a rolling bearing.
[0015] In this disclosure and possible embodiments, the simulation platform further includes:
[0016] A bracket guide rail, wherein connecting holes are symmetrically arranged on both sides of the bracket guide rail;
[0017] The bearing support, key phase monitoring probe mounting bracket, vibration monitoring probe mounting bracket, and displacement monitoring probe mounting bracket are connected to the bracket guide rail through the connecting hole.
[0018] In this disclosure and possible embodiments, the support rail is fixed to the platform base.
[0019] In this disclosure and possible embodiments, a motor speed control box is provided on the platform base.
[0020] The beneficial effects of this utility model are:
[0021] This disclosed simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase, combined with a compressor condition monitoring and protection system, can be used for simulating compressor shaft vibration and shaft displacement condition monitoring faults, conducting probe installation and debugging drills, and performing probe simulation calibration experiments. It enables accurate measurement of unit operating status parameters, improves the hands-on skills of instrument maintenance personnel in installing and debugging compressor condition monitoring probes, facilitates the analysis and judgment of various fault phenomena occurring under simulated unit operating conditions, and enables performance testing of monitoring circuit components. This effectively solves the problem of low installation accuracy of compressor condition monitoring probes in oilfields due to the lack of simulation platforms, which prevents the effective acquisition of compressor shaft displacement, radial vibration, and key phase signals, and the inability to simulate practical operations such as on-site installation, debugging, and maintenance faults. Attached Figure Description
[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the specification, serve to illustrate the technical solutions of this disclosure.
[0023] Figure 1 This is a schematic diagram of the simulation platform structure for simulating compressor shaft vibration, shaft displacement, and key phase according to this utility model.
[0024] Figure 2 This is a schematic diagram of the mounting bracket structure for the key phase monitoring probe of this utility model;
[0025] In the diagram: 1-Speed-regulating motor, 2-Coupling, 3-Bearing support, 4-Compressor shaft, 5-Bracket guide rail, 6-Key phase monitoring probe mounting bracket, 7-Vibration monitoring probe mounting bracket, 8-Displacement monitoring probe mounting bracket, 9-Adjustable vibratory plate, 10-Motor speed control box, 11-Platform base. Detailed Implementation
[0026] The present disclosure is described below based on embodiments; however, it is worth noting that the present disclosure is not limited to these embodiments. In the detailed description of the present disclosure below, certain specific details are described in detail. However, those skilled in the art will fully understand the present disclosure for the parts not described in detail.
[0027] Furthermore, unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to."
[0028] To address the technical problems described in the background section, this utility model provides a simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase. Figure 1 Combination Figure 2As shown, the simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase includes a compressor shaft 4 connected to a speed-regulating motor 1, and key phase markings and a displacement monitoring disk are set on the compressor shaft 4; with the compressor shaft 4 as the center, key phase monitoring probe mounting brackets 6, vibration monitoring probe mounting brackets 7, and displacement monitoring probe mounting brackets 8 are set at intervals along the axial direction of the compressor shaft 4, and key phase monitoring probes, vibration monitoring probes, and displacement monitoring probes are correspondingly set on the key phase monitoring probe mounting brackets 6, vibration monitoring probe mounting brackets 7, and displacement monitoring probe mounting brackets 8, and the key phase markings correspond to the key phase monitoring probes; the compressor shaft 4 is also equipped with an adjustable vibratory disk 9, and the edge of the adjustable vibratory disk 9 is evenly distributed with counterweight holes, and counterweight blocks are connected to all or part of the counterweight holes.
[0029] In this embodiment, the key phase monitoring probe mounting bracket 6, vibration monitoring probe mounting bracket 7, and displacement monitoring probe mounting bracket 8 are preferably manufactured in a regular octagonal shape. This is primarily because their geometric shape provides symmetry, uniform stress distribution, relatively high bending strength, and strong vibration resistance. A threaded mounting hole, compatible with the probe mounting sleeve, is machined on at least one side of the bracket. Monitoring probes are mounted in all or part of these mounting holes to monitor the radial vibration, axial displacement, and key phase signal of the compressor shaft 4.
[0030] In this embodiment, the shaft vibration monitoring probe consists of a horizontal monitoring probe and a vertical monitoring probe. The horizontal (X-direction) monitoring probe and the vertical (Y-direction) monitoring probe can be installed on the shaft vibration monitoring probe mounting bracket 7. The shaft vibration parameters can be measured by rotating the compressor shaft 4.
[0031] In this embodiment of the present disclosure, a displacement monitoring disk is installed at the end of the compressor shaft 4. By adjusting the fastening bolts on the displacement monitoring probe mounting bracket 8, the distance between the end face of the displacement monitoring probe and the displacement monitoring disk is changed. The displacement monitoring probe monitors the magnitude of the axial displacement of the compressor shaft 4, thereby realizing the measurement of the axial displacement parameters of the compressor shaft 4.
[0032] In this embodiment, a rectangular groove is milled into the compressor shaft 4 as a key phase mark. A key phase monitoring probe is installed and debugged on the key phase monitoring probe mounting bracket 6. When the compressor shaft 4 rotates, the key phase signal can be monitored by the key phase monitoring probe, thus achieving the measurement of the key phase parameters of the compressor shaft 4. Specifically, when the compressor shaft 4 rotates one revolution, the key phase monitoring probe generates a key phase pulse signal at the key phase mark. By comparing the pulse with the vibration signal of the shaft, the phase angle of the vibration can be determined. The phase angle can be used by the System1 condition monitoring system for fault analysis and diagnosis of operating equipment.
[0033] In this embodiment, because all or part of the mounting holes of the adjustable vibratory feeder 9 have various different connection methods with the counterweight, the dynamic balance of the adjustable vibratory feeder 9 can be changed by embedding the counterweight in different ways on the mounting holes, causing the compressor shaft 4 to generate a larger vibration amplitude. This also correspondingly changes the axis trajectory of the compressor shaft 4. By monitoring the axis trajectory of the compressor shaft 4 through the monitoring probe on the vibration monitoring probe mounting bracket 7, the shaft vibration parameters of the compressor shaft 4 can be measured. Furthermore, the oilfield's System1 condition monitoring and fault diagnosis software platform seamlessly integrates with the 3500 compressor condition monitoring and protection system, performing diagnostic analysis on the equipment's condition and trend data to form a data-driven maintenance plan.
[0034] In this embodiment, the speed-regulating motor 1 and the compressor shaft 4 are connected by a coupling 2. The coupling 2 enables the speed-regulating motor 1 and the compressor shaft 4 to rotate synchronously, transmit torque, and not disengage under normal rotation.
[0035] In this embodiment, the compressor shaft 4 is connected to bearing supports 3 at both ends, and rolling bearings are embedded in the bearing supports 3 to prevent jamming or inflexible rotation of the compressor shaft 4.
[0036] In this embodiment, the speed regulating motor 1, bearing support 3, compressor shaft 4, key phase monitoring probe mounting bracket 6, vibration monitoring probe mounting bracket 7, and displacement monitoring probe mounting bracket 8 are all mounted on the bracket guide rail 5. The bracket guide rail 5 has symmetrical connection holes on both sides. The above components are installed through the connection holes. Its advantages are good stability, simple wiring, convenient control, and low price.
[0037] In this embodiment, the bracket guide rail 5 is fixed on the platform base 11, and the platform base 11 is also equipped with a motor speed control box 10. The speed control motor 1 changes the motor speed by changing the number of magnetic pole pairs, voltage, current, frequency and other methods of the motor using the speed control motor box 10, so that the speed control motor 1 can achieve higher performance.
[0038] The following describes the specific operation method of the simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to embodiments of this disclosure:
[0039] (1) Shaft vibration monitoring probe installation and debugging method: According to the installation requirements for radial measurement of shaft vibration parameters, install the probe on the vibration monitoring probe mounting bracket 7 of the simulation platform, adjust the probe gap voltage to -9.5V±0.25VDC, and fix it firmly with the locking nut to complete the installation of the vibration monitoring probe. Use the simulation platform to simulate and measure the shaft vibration parameters, and adjust the counterweight of the adjustable vibratory plate 9 fixed on the compressor shaft 4 to obtain different vibration amplitudes.
[0040] (2) Installation and debugging method of shaft displacement monitoring probe: According to the installation requirements of axial displacement parameters, install the probe on the displacement monitoring probe mounting bracket 8 of the simulation platform. The reference gap voltage of the probe is -9.75V + (mm × 7.874V / mm) ± 0.2VDC. First, install a digital dial indicator on the displacement monitoring probe mounting bracket 8 of the simulation platform. The dial indicator reading is zero. Adjust the adjusting bolt of the displacement monitoring probe mounting bracket 8 to change the gap between the displacement monitoring disk and the bracket. The gap value can change arbitrarily within 0-0.5mm. Observe whether the display of the shaft displacement monitoring module is consistent with the dial indicator value, or judge the axial displacement value and the direction of shaft movement based on its output voltage value, and calculate whether the probe sensitivity meets the requirements to realize the measurement of shaft displacement parameters.
[0041] (3) Installation and debugging method of key phase monitoring probe: According to the installation requirements of key phase signal measurement parameters, install the key phase monitoring probe on the key phase monitoring probe mounting bracket 6 of the simulation platform. Align the probe end with the smooth part of the key phase groove symmetry plane, adjust the static gap voltage of the probe to -9.5V±0.25VDC, and fix it firmly with the locking nut. When the compressor shaft 4 rotates, the shaft speed can be measured. At the same time, it provides a reference for the acquisition of data of System1 status monitoring and fault diagnosis software platform, and the reference base point for the acquisition of all data such as phase angle and shaft center trajectory.
[0042] The simulation platform disclosed herein, which simulates compressor shaft vibration, shaft displacement, and key phase, enables employees to learn by doing and deepen their understanding through fault handling in oilfield enterprise employee training and fault tracing. This leads to more standardized operations and proactive training of enterprise employees. It has a very ideal effect in employee skills operation training and common compressor condition fault analysis.
[0043] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the technology in the market, or to enable those skilled in the art to understand the embodiments disclosed herein.
Claims
1. A simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase, characterized in that, include: A compressor shaft (4) connected to a speed-regulating motor (1) is provided with a key phase mark and a displacement monitoring disk; Centered on the compressor shaft (4), a key phase monitoring probe mounting bracket (6), a vibration monitoring probe mounting bracket (7), and a displacement monitoring probe mounting bracket (8) are provided at intervals along the axial direction of the compressor shaft (4). A key phase monitoring probe, a vibration monitoring probe, and a displacement monitoring probe are respectively installed on the key phase monitoring probe mounting bracket (6), the vibration monitoring probe mounting bracket (7), and the displacement monitoring probe mounting bracket (8). The key phase mark corresponds to the key phase monitoring probe. An adjustable vibratory plate (9) is mounted on the compressor shaft (4). The edge of the adjustable vibratory plate (9) is evenly distributed with counterweight holes, and counterweight blocks are connected to all or part of the counterweight holes.
2. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 1, characterized in that: The key phase monitoring probe mounting bracket (6), vibration monitoring probe mounting bracket (7) and displacement monitoring probe mounting bracket (8) are hexagonal or octagonal in shape. Mounting holes adapted to the probe mounting sleeve are provided on at least one side of the bracket, and monitoring probes are mounted on all or part of the mounting holes.
3. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 1 or 2, characterized in that: The shaft vibration monitoring probe consists of a horizontal monitoring probe and a vertical monitoring probe.
4. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 3, characterized in that: The bond phase marking is a rectangular groove.
5. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 4, characterized in that: The speed-regulating motor (1) is connected to the compressor shaft (4) via a coupling (2).
6. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 5, characterized in that: The compressor shaft (4) is connected to bearing supports (3) at both ends.
7. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 6, characterized in that: The bearing support (3) is connected to the compressor shaft (4) via a rolling bearing.
8. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 6 or 7, characterized in that, Also includes: The bracket guide rail (5) has symmetrical connecting holes on both sides; The bearing support (3), the key phase monitoring probe mounting bracket (6), the vibration monitoring probe mounting bracket (7), and the displacement monitoring probe mounting bracket (8) are connected to the bracket guide rail (5) through the connecting hole.
9. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 8, characterized in that: The bracket guide rail (5) is fixed on the platform base (11).
10. The simulation platform for simulating compressor shaft vibration, shaft displacement, and key phase according to claim 9, characterized in that: A motor speed control box (10) is installed on the platform base (11).