Vibration monitoring device for long-distance pipeline laid on ground and control method thereof

Abstract

The invention provides a ground laying long-distance pipeline vibration monitoring device and a control method thereof.The ground laying long-distance pipeline vibration monitoring device comprises a shell, a vibration monitoring module, a wireless transmission module, an energy storage battery and an electric drive executing mechanism, and the vibration monitoring module, the wireless transmission module, the energy storage battery and the electric drive executing mechanism are arranged in the shell; the electric drive executing mechanism is connected with a valve rod of the control valve body. The vibration monitoring module is used for collecting pipeline vibration signals and controlling the electric drive executing mechanism to act according to the vibration signals so as to drive the valve opening degree of the valve body, and the vibration monitoring module is connected with a far-end monitoring platform through the wireless transmission module so as to conduct outer end monitoring control on the vibration monitoring module. The vibration absorption module and the power generation module are arranged on the long-distance pipeline, the vibration absorption module is connected with the power generation module, and the power generation module is connected with the energy storage battery. Rapid response, accurate adjustment and rapid early warning of abnormal vibration of the pipeline can be achieved, and safe and stable operation of a pipeline system is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of liquid pipeline vibration monitoring, and in particular, relates to a vibration monitoring device for a long-distance pipeline laid on the ground and a control method thereof. Background Art

[0002] As a key infrastructure for modern energy transportation, long-distance oil and gas pipelines undertake the important task of transporting oil and gas resources from production areas to consumption areas. By the end of 2023, the total mileage of my country's long-distance oil and gas pipeline network has reached 184,000 kilometers, including 28,000 kilometers of crude oil pipelines, 32,000 kilometers of refined oil pipelines, and 124,000 kilometers of natural gas pipelines. This huge pipeline system plays a vital role in the exploitation, transportation and distribution of oil and gas fields.

[0003] However, long-distance pipelines are inevitably affected by various vibrations during operation. Vibrations may be caused by a variety of factors, including but not limited to fluid dynamics, pump station operation, external environmental interference, geological activities, etc. These vibrations have many effects on pipeline structures, including material fatigue, crack propagation, accelerated corrosion, etc., which may eventually lead to structural damage. Damage caused by pipeline vibration has many hazards: reducing transportation efficiency, increasing energy consumption, causing serious safety accidents such as fire and explosion, and causing economic losses.

[0004] Although there are some methods for monitoring and controlling pipeline vibration in the existing technology, there are still the following limitations: the monitoring methods are mostly point-based or local monitoring, which cannot fully cover the entire pipeline system and make it difficult to achieve early warning; the preventive measures are mostly passive responses, lacking active prevention and adaptive adjustment mechanisms; the repair strategies are mostly post-event remediation, lacking rapid response and systematic solutions. Summary of the invention

[0005] In view of this, the present application aims to propose a vibration monitoring device for a long-distance pipeline laid on the ground and a control method thereof, so as to solve the problem that it is impossible to comprehensively and effectively monitor the vibration of a long-distance pipeline laid on the ground.

[0006] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0007] In a first aspect, the present application provides a vibration monitoring device for a long-distance pipeline laid on the ground, comprising:

[0008] A housing, and a vibration monitoring module, a wireless transmission module, an energy storage battery and an electric drive actuator arranged in the housing, wherein the housing is mounted on a control valve body arranged on a long-distance pipeline, and the electric drive actuator is connected to a valve stem of the control valve body;

[0009] The vibration monitoring module is used to collect pipeline vibration signals and control the action of the electric drive actuator according to the vibration signals to drive the valve opening of the control valve body. The vibration monitoring module communicates and interacts with the remote monitoring platform through the wireless transmission module to perform external monitoring and control of the vibration monitoring module.

[0010] It also includes a vibration absorption module and a power generation module arranged on the long-distance pipeline, wherein the vibration absorption module is connected to the power generation module, and the power generation module is connected to the energy storage battery;

[0011] The vibration absorption module is used to absorb the kinetic energy generated when the long-distance pipeline vibrates, and drive the power generation module to convert the vibration kinetic energy into electrical energy. The generated electrical energy is transmitted to the energy storage battery to provide power supply to each module.

[0012] In the second aspect, based on the same inventive concept, the present application also provides a control method for the vibration monitoring device for a long-distance pipeline laid on the ground as described in the first aspect, comprising:

[0013] Collect the vibration signal of the pipeline monitoring point at a certain moment, and perform frequency domain analysis on the vibration signal through Fourier transform to identify the vibration frequency and vibration amplitude of the pipeline monitoring point at the current moment;

[0014] Comparing the vibration frequency and the vibration amplitude with a preset safety threshold to evaluate whether the current pipeline vibration state exceeds the safety threshold;

[0015] In response to exceeding the safety threshold, the valve opening is controlled and adjusted based on a pre-set control strategy to control the pipeline vibration within the safety threshold range.

[0016] Compared with the prior art, the vibration monitoring device for a long-distance pipeline laid on the ground and the control method thereof described in this application have the following beneficial effects:

[0017] The vibration monitoring device for a long-distance pipeline laid on the ground and the control method thereof described in the present application highly integrate the vibration monitoring module with the control valve body to realize real-time monitoring and instant adjustment. When an abnormal vibration signal is detected, the system automatically fine-tunes the valve opening, reduces the vibration amplitude by changing the fluid pulsation frequency, and controls the vibration signal within a safe vibration range. Once vibration out of the range is detected, the adjustment mechanism is automatically started to gradually adjust the valve opening to avoid impact on the pipeline system. Through this closed-loop control strategy, the system can achieve rapid response, precise adjustment and rapid early warning to abnormal pipeline vibration, thereby ensuring safe and stable operation of the pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic structural diagram of a vibration monitoring device for a long-distance pipeline laid on the ground according to an embodiment of the present application;

[0020] Figure 2 This is a plan cross-sectional view of a vibration monitoring device for a long-distance pipeline laid on the ground according to an embodiment of the present application;

[0021] Figure 3 This is a flow chart of a control method for a vibration monitoring device for a long-distance pipeline laid on the ground as described in an embodiment of the present application.

[0022] Description of reference numerals:

[0023] 1-housing; 2-vibration monitoring module; 21-microcontroller; 22-analog-to-digital converter; 23-piezoelectric acceleration sensor; 3-wireless transmission module; 4-energy storage battery; 5-electric drive actuator; 6-control valve body. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] See also Figure 1 and Figure 2 As shown, this embodiment provides a vibration monitoring device for a long-distance pipeline laid on the ground, comprising:

[0027] A housing 1, and a vibration monitoring module 2, a wireless transmission module 3, an energy storage battery 4 and an electric drive actuator 5 arranged in the housing 1. The housing 1 is installed on a control valve body 6 arranged on a long-distance pipeline, and the electric drive actuator 5 is connected to the valve stem of the control valve body 6;

[0028] The vibration monitoring module 2 is used to collect pipeline vibration signals and control the electric drive actuator 5 to operate according to the vibration signals to drive the valve opening of the control valve body 6. The vibration monitoring module 2 communicates and interacts with the remote monitoring platform through the wireless transmission module 3 to perform external monitoring and control of the vibration monitoring module 2;

[0029] It also includes a vibration absorption module and a power generation module arranged on the long-distance pipeline, the vibration absorption module is connected to the power generation module, and the power generation module is connected to the energy storage battery 4;

[0030] The vibration absorption module is used to absorb the kinetic energy generated by the vibration of the long-distance pipeline, and drive the power generation module to convert the vibration kinetic energy into electrical energy. The generated electrical energy is transmitted to the energy storage battery 4 to provide power supply for each module.

[0031] Specifically, in this embodiment, the vibration monitoring module 2 is highly integrated with the control valve body 6 to achieve real-time monitoring and immediate adjustment. When an abnormal vibration signal is detected, the system automatically fine-tunes the valve opening to reduce the vibration amplitude by changing the fluid pulsation frequency. Specifically, the present application sets a protective shell 1 on the control valve body 6 installed on the long-distance pipeline. The shell is integrated with the outer shell of the control valve body. The inner cavity of the shell 1 is integrated with the vibration monitoring module 2, the wireless transmission module 3, the energy storage battery 4 and the electric drive actuator 5. The modules are interconnected, and the electric drive actuator 5 (equivalent to the electric hand wheel) is connected to the valve stem of the control valve body 6 to realize the electric control valve adjustment. At the same time, the vibration monitoring module 2 maintains communication interaction with the remote monitoring platform through the wireless transmission module 3 to realize remote real-time management and monitoring.

[0032] In addition, the present application adopts the method of converting vibration energy into electrical energy, and supplies power to the vibration monitoring module 2 and the control valve body 6 through the vibration absorption module and the power generation module, which solves the problems of high cost and complex environment of long-distance pipeline power connection. At the same time, the present application sets a micro energy storage battery 4 to store the converted electrical energy to ensure that the vibration monitoring module 2 and the control valve body 6 can still work normally when the vibration is weakened. It should be noted that for the micro energy storage battery 4 set in the present application, when the pipeline generates abnormal vibration, the vibration energy generated by the pipeline is absorbed by the vibration absorption module, and the vibration energy is converted into electrical energy through the power generation module to provide it to the energy storage battery 4. When the internal power is stored to the preset power value, each module will be activated and power will be provided to enter the awakening state; when the pipeline vibrates weakly or does not vibrate, all remain silent to save power, and each module will be powered only after the internal power is stored to the preset power value.

[0033] Furthermore, when in the awake state, when the pipeline vibrates, the power generation module generates electricity to provide power to the vibration monitoring module 2 to wake up the module and receive the vibration signal. Secondly, after the valve opening is adjusted, when the pipeline vibration has not weakened and has not reached the vibration safety threshold, the awakening mechanism can also be activated to wake up the vibration monitoring module 2 for vibration monitoring.

[0034] In silent mode, when the vibration is reduced to a safe range and the electrical energy generated by the shock-absorbing module is reduced or even exhausted, the system automatically enters silent mode to extend the service life of the device.

[0035] The vibration monitoring device for a long-distance pipeline laid on the ground described in the present application highly integrates the vibration monitoring module 2 with the control valve body 6 to achieve real-time monitoring and instant adjustment. When an abnormal vibration signal is detected, the system automatically fine-tunes the valve opening, reduces the vibration amplitude by changing the fluid pulsation frequency, and controls the vibration signal within a safe vibration range. Once vibration out of the range is detected, the adjustment mechanism is automatically started to gradually adjust the valve opening to avoid impact on the pipeline system. Through this closed-loop control strategy, the system can achieve rapid response, precise adjustment and rapid early warning to abnormal pipeline vibration, thereby ensuring safe and stable operation of the pipeline system.

[0036] In some embodiments, the vibration monitoring module 2 includes a microcontroller 21, an analog-to-digital converter 22, and a piezoelectric acceleration sensor 23;

[0037] The piezoelectric acceleration sensor 23 collects the vibration acceleration signal of the long-distance pipeline and converts it into an electrical signal. The electrical signal is transmitted to the microcontroller 21 through the analog-to-digital converter 22. The microcontroller 21 is connected to the electric drive actuator 5 to control the action of the electric drive actuator 5.

[0038] Specifically, in this embodiment, a piezoelectric acceleration sensor 23 of model ADXL335 (with strong environmental adaptability and the ability to resist shock and vibration) is used. The vibration signal is converted into an electrical signal through Arduino and the piezoelectric acceleration sensor 23, and the acceleration data is displayed on the serial monitor. These electrical signals are converted into digital signals through an analog-to-digital converter 22 (ADC) and collected by the microcontroller 21. The microcontroller 21 starts the PID control algorithm and automatically adjusts the opening of the valve through the electric drive actuator 5 to change the flow characteristics of the fluid, thereby suppressing or reducing vibration.

[0039] In some embodiments, the vibration absorbing module and the power generation module are installed on a clamping module, and the clamping module is fixedly clamped on the long-distance pipeline and fixed to the ground through supporting feet arranged at the bottom.

[0040] Specifically, in this embodiment, the clamping module (the clamping module is not shown in the accompanying drawings) is configured as two upper and lower fixed structures, and the hollow formed in the middle is the position for placing the pipeline. The corresponding size can be changed according to the size of the pipeline, and vibration absorption modules are arranged at four positions of the clamping module. The vibration absorption module is connected to the power generation module. The vibration absorption module is used to absorb the vibration energy generated by the pipeline and convert the vibration energy into electrical energy through the power generation module, thereby achieving the purpose of converting the kinetic energy of pipeline vibration into electrical energy.

[0041] It should be noted that those skilled in the art should understand that the specific structures of the vibration absorption module and the power generation module involved in this embodiment are implemented by conventional technical means in the field, and will not be elaborated on here.

[0042] The provided supporting feet play a role in fixing the entire device, thereby enhancing the overall stability of the device.

[0043] In some embodiments, an early warning module is further included. The early warning module is connected to the wireless transmission module 3 and is configured to trigger a multi-level early warning according to the pipeline vibration state.

[0044] Specifically, in this embodiment, the wireless transmission module 3 selects the nRF24L01 model module, including a data sending module and a data receiving module, for wireless transmission of signals. The present application is also provided with an early warning module. Then, if the vibration does not weaken or intensify after the valve is adjusted, the system will trigger the early warning module through the wireless transmission module 3 to start a multi-level early warning mechanism. The primary early warning can alert the staff, while continued abnormalities may trigger a higher level of early warning, requiring an immediate response.

[0045] In this embodiment, the early warning reminder can be realized by warning lights with different colors, different flashing modes, etc., or it can be presented in the form of text or patterns on the display screen of the external control platform. No further details will be given here. This multi-level alarm mechanism ensures that in vibration events of different levels, relevant personnel can be notified in time and take corresponding measures.

[0046] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment devices, an embodiment of the present application further provides a control method for a vibration monitoring device for a long-distance pipeline laid on the ground.

[0047] like Figure 3 As shown, the control method specifically includes the following steps:

[0048] Step S101: collect the vibration signal of the pipeline monitoring point at a certain moment, and perform frequency domain analysis on the vibration signal through Fourier transform to identify the vibration frequency and vibration amplitude of the pipeline monitoring point at the current moment.

[0049] When the pipeline vibrates due to fluid fluctuations, liquid impact vibrations or fluid pulsations, first, the vibration absorption module absorbs the vibration and converts the vibration energy into electrical energy through the power generation module, which not only reduces the direct damage to the pipeline caused by vibration, but also provides electrical energy for subsequent monitoring and regulation. Subsequently, the ADXL335 piezoelectric acceleration sensor in the vibration monitoring device integrated in the automatic regulating valve starts to work, accurately capturing the acceleration changes of the pipeline in three spatial axes, and converting these mechanical vibrations into electrical signals. These electrical signals are converted into digital signals through the analog-to-digital converter (ADC) and collected by the internal microcontroller. The microcontroller uses fast Fourier transform (FFT) to perform frequency domain analysis on the collected vibration signals to identify the main vibration frequencies and amplitudes.

[0050] In some embodiments, the vibration acceleration data of the pipeline on the three-dimensional space axis is collected by a piezoelectric acceleration sensor, and the vibration frequency and vibration amplitude of the pipeline monitoring point at the current moment are obtained based on the vibration acceleration data and the Fourier transform result analysis, and the valve opening is adjusted according to the vibration frequency and vibration amplitude.

[0051] Specifically, in this embodiment, the vibration detection module receives the vibration signal, and the vibration signal passes through the piezoelectric acceleration sensor (ADXL335), and the vibration signal is converted into an electrical signal through Arduino and the piezoelectric acceleration sensor, and the acceleration data is displayed on the serial monitor, and the vibration frequency and the corresponding amplitude in the frequency domain are obtained through Fourier transform. Then, in practical applications, discrete Fourier transform (DFT) or its fast algorithm fast Fourier transform (FFT) is usually used to process discrete sampling signals, and the main vibration frequency can be found through the peak frequency in the FFT result, and the peak amplitude indicates the intensity of the vibration.

[0052] The frequency domain spectrum after Fourier transformation can show the amplitude of different frequency components in the vibration signal. Usually, the vibration frequency of the pipeline will show obvious peaks at certain specific frequencies. The frequency of the peak is the main vibration frequency of the pipeline, and the size of the peak is the vibration amplitude.

[0053] The following code is the core code for collecting vibration acceleration data on the three-dimensional space axis.

[0054] #include<Wire.h>

[0055] / / ADXL335 register address

[0056] #define ADXL335_ADDRESS(0x53) / / 7-bit I2C address of ADXL335 plus write operation bit W

[0057] #define ADXL335_DATAX0(0x32) / / Starting register of X-axis data

[0058] void setup(){

[0059] Wire.begin(); / / Initialize I2C bus

[0060] Serial.begin(9600); / / Start serial communication

[0061] }

[0062] void loop(){

[0063] int16_t x, y, z; / / variables to store acceleration values

[0064] / / Read the X-axis acceleration

[0065] Wire.beginTransmission(ADXL335_ADDRESS);

[0066] Wire.write(ADXL335_DATAX0);

[0067] Wire.endTransmission(false);

[0068] Wire.requestFrom(ADXL335_ADDRESS, 2);

[0069] x = Wire.read()|(Wire.read()<<8); / / Read two bytes and combine

[0070] / / Read the Y-axis acceleration

[0071] Wire.beginTransmission(ADXL335_ADDRESS);

[0072] Wire.write(0x34); / / Starting register of Y-axis data

[0073] Wire.endTransmission(false);

[0074] Wire.requestFrom(ADXL335_ADDRESS, 2);

[0075] y=Wire.read()|(Wire.read()<<8);

[0076] / / Read the Z-axis acceleration

[0077] Wire.beginTransmission(ADXL335_ADDRESS);

[0078] Wire.write(0x36); / / Starting register of Z-axis data

[0079] Wire.endTransmission(false);

[0080] Wire.requestFrom(ADXL335_ADDRESS, 2);

[0081] z=Wire.read()|(Wire.read()<<8);

[0082] / / Acceleration value

[0083] Serial.print("X:"); Serial.print(x);

[0084] Serial.print("Y:"); Serial.print(y);

[0085] Serial.print("Z:"); Serial.println(z);

[0086] delay(100); / / delay

[0087] }

[0088] Step S102: Compare the vibration frequency and vibration amplitude with a preset safety threshold to evaluate whether the current pipeline vibration state exceeds the safety threshold.

[0089] Specifically, in this embodiment, based on the identified vibration frequency and amplitude, the microcontroller evaluates whether the current vibration state exceeds the safety range by comparing with a preset safety threshold (the safety threshold set in this embodiment is 100±5).

[0090] Step S103: In response to exceeding the safety threshold, the valve opening is controlled and adjusted based on a pre-set control strategy to control the pipeline vibration within the safety threshold.

[0091] Specifically, in this embodiment, once abnormal vibration is detected, the microcontroller will start the PID control algorithm and automatically adjust the opening of the valve through the electric drive actuator to change the flow characteristics of the fluid, thereby suppressing or reducing the vibration.

[0092] It should be noted that, in this embodiment, the vibration of the pipeline is affected by the following main frequencies: the frequency of fluid flow (the flow velocity of the fluid and the change of the pressure in the pipe will cause periodic vibration, and this vibration frequency depends on the velocity of the fluid, the geometry of the pipeline and the fluid characteristics); the operating frequency of the equipment (if the equipment connected to the pipeline (such as a pump or compressor) has a certain vibration frequency, this frequency may be transmitted to the pipeline. If this frequency is close to the natural frequency of the pipeline, it may cause resonance and increase the vibration amplitude); the natural frequency of the pipeline structure: the pipeline itself also has its natural frequency, which is related to its material, size, support method and fixed position. The natural frequency is the frequency at which the structure is most likely to vibrate after being externally excited.

[0093] When the external frequency (such as fluid frequency or equipment vibration frequency) is close to the natural frequency of the pipeline, resonance will occur, resulting in an increase in the vibration amplitude and even causing structural damage.

[0094] This application uses the set safety threshold as the target of regulation. Once the vibration beyond the range is detected, the regulation mechanism is automatically activated to gradually adjust the valve opening, change the flow rate and pressure of the fluid, and thus destroy the resonance condition. Specifically, adjusting the opening will affect the frequency and mode of the flow, moving it away from the natural frequency of the pipeline, thereby reducing the risk of resonance, which can effectively control the vibration amplitude and keep it within the safety threshold.

[0095] In some implementations, in response to the vibration amplitude being greater than a safety threshold and the valve not being fully open, the valve opening is reduced according to a predetermined adjustment step of 1% to 5%.

[0096] Then, during actual control and adjustment, the initial value of the valve opening is adjusted according to the valve opening adjustment step of 1% to 5% so that the vibration amplitude meets the preset safety threshold.

[0097] The core code of the above control strategy is as follows:

[0098] #include<Wire.h>

[0099] / / ADXL335 register address

[0100] #define ADXL335_ADDRESS(0x53)

[0101] #define ADXL335_DATAX0(0x32)

[0102] / / Valve controller PWM control pin

[0103] const int valveControlPin=3;

[0104] / / Vibration threshold

[0105] const int vibrationThreshold=50;

[0106] / / Valve opening adjustment step (1%-5%)

[0107] const int regulationStep=5;

[0108] / / Initial value of valve opening

[0109] int currentValveOpenPercentage=100;

[0110] / / Vibration amplitude history

[0111] int vibrationHistory

[10] = {0}; / / Record the most recent vibration amplitude

[0112] int historyIndex = 0;

[0113] void setup(){

[0114] Wire.begin(); / / Initialize I2C bus

[0115] Serial.begin(9600); / / Start serial communication

[0116] pinMode(valveControlPin,OUTPUT); / / Set the PWM control pin to output mode

[0117] analogWrite(valveControlPin, map(currentValveOpenPercentage, 0, 100, 0, 255)); / / Set the initial valve opening

[0118] }

[0119] void loop(){

[0120] int16_t x, y, z;

[0121] int vibrationMagnitude = 0;

[0122] int averageVibration = 0;

[0123] / / Read acceleration data and calculate vibration amplitude for(int i=0;i<3;i++){

[0124] Wire.beginTransmission(ADXL335_ADDRESS); Wire.write(ADXL335_DATAX0+i*2);

[0125] Wire.endTransmission(false);

[0126] Wire.requestFrom(ADXL335_ADDRESS, 2);

[0127] x=Wire.read()|(Wire.read()<<8);

[0128] vibrationMagnitude+=abs(x);

[0129] }

[0130] vibrationMagnitude / =3; / / Average

[0131] / / Update the vibration amplitude history

[0132] vibrationHistory[historyIndex]=vibrationMagnitude;historyIndex=(historyIndex+1)%10;

[0133] for(int i=0;i<10;i++){

[0134] averageVibration+=vibrationHistory[i];

[0135] }

[0136] averageVibration / =10; / / Calculate the average vibration amplitude

[0137] / / Adjust valve opening according to vibration amplitude

[0138] if(vibrationMagnitude>vibrationThreshold){

[0139] if(currentValveOpenPercentage>1){ / / Ensure that the valve opening does not drop to 0%

[0140] currentValveOpenPercentage-=regulationStep;

[0141] analogWrite(valveControlPin,map(currentValveOpenPercentage,0,100,0,255));

[0142] Serial.println("Vibration too high, reducing valve open percentage.");

[0143] }

[0144] }else if(vibrationMagnitude <vibrationThreshold&¤tValveOpenPercentage<100){

[0145] / / If the vibration amplitude is less than the threshold and the valve is not fully open, gradually increase the valve opening

[0146] currentValveOpenPercentage+=regulationStep;

[0147] if(currentValveOpenPercentage>100)currentValveOpenPercentage=100;

[0148] analogWrite(valveControlPin,map(currentValveOpenPercentage, 0, 100, 0, 255));

[0149] }

[0150] In some embodiments, it further comprises:

[0151] In response to the vibration amplitude decreasing and not reaching the safety threshold after adjusting the valve opening, negative feedback regulation is performed.

[0152] Specifically, in this embodiment, during the valve adjustment process, the microcontroller continuously monitors the vibration signal and adjusts the control strategy in real time according to the feedback signal. Once the vibration out of the range is detected, the adjustment mechanism is automatically started to gradually adjust the valve opening to ensure that the vibration is effectively controlled within the safety threshold and avoid impact on the pipeline system.

[0153] Furthermore, after controlling and adjusting the valve opening, if the vibration weakens and does not reach the safety threshold, negative feedback adjustment is performed to wake up each module and receive the vibration signal, and continue to adjust to reduce the vibration to a safe range.

[0154] In some embodiments, it further comprises:

[0155] In response to adjusting the valve opening, if the vibration amplitude remains unchanged or increases, a multi-level warning is triggered.

[0156] Specifically, in this embodiment, if the vibration does not weaken or intensifies after the control valve is adjusted, the system triggers a multi-level alarm mechanism. The primary alarm is to alert the staff, while continued abnormalities may trigger a higher level alarm requiring an immediate response.

[0157] The multi-level warning settings provided in this application have two levels, including the first warning level (medium) and the second warning level (high). The specific code implementation is as follows:

[0158] / / Provide early warning

[0159] if(averageVibration>=2*vibrationThreshold){

[0160] / / Warning level 2: High

[0161] Serial.println("Warning Level 2:High vibration detected.");

[0162] }else if(averageVibration>=vibrationThreshold&&averageVibration<2*vibrationThreshold){

[0163] / / Warning level 1: Medium

[0164] Serial.println("Warning Level 1:Moderate vibration detected.");

[0165] }

[0166] The control method described in this embodiment can achieve rapid response, precise adjustment and rapid warning to abnormal pipeline vibration through a closed-loop control strategy, thereby ensuring the safe and stable operation of the pipeline system. At the same time, remote monitoring technology is used to achieve comprehensive monitoring, evaluation and control of the vibration of long-distance pipelines laid on the ground, thereby improving the safety, stability and economy of the pipeline system.

[0167] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0168] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A vibration monitoring device for a long-distance pipeline laid on the ground, characterized in that: include: A housing, and a vibration monitoring module, a wireless transmission module, an energy storage battery and an electric drive actuator arranged in the housing, wherein the housing is mounted on a control valve body arranged on a long-distance pipeline, and the electric drive actuator is connected to a valve stem of the control valve body; The vibration monitoring module is used to collect pipeline vibration signals and control the action of the electric drive actuator according to the vibration signals to drive the valve opening of the control valve body. The vibration monitoring module communicates and interacts with the remote monitoring platform through the wireless transmission module to perform external monitoring and control of the vibration monitoring module. It also includes a vibration absorption module and a power generation module arranged on the long-distance pipeline, wherein the vibration absorption module is connected to the power generation module, and the power generation module is connected to the energy storage battery; The vibration absorption module is used to absorb the kinetic energy generated when the long-distance pipeline vibrates, and drive the power generation module to convert the vibration kinetic energy into electrical energy. The generated electrical energy is transmitted to the energy storage battery to provide power supply to each module.

2. The device according to claim 1, characterized in that: The vibration monitoring module includes a microcontroller, an analog-to-digital converter and a piezoelectric acceleration sensor; The piezoelectric acceleration sensor collects the vibration acceleration signal of the long-distance pipeline and converts it into an electrical signal. The electrical signal is transmitted to the microcontroller through the analog-to-digital converter. The microcontroller is connected to the electric drive actuator to control the action of the electric drive actuator.

3. The device according to claim 1, characterized in that: The vibration absorbing module and the power generation module are mounted on a clamping module, and the clamping module is fixedly clamped on the long-distance pipeline and fixed on the ground through supporting feet arranged at the bottom.

4. The device according to claim 1, characterized in that: It also includes an early warning module, which is connected to the wireless transmission module and is configured to trigger a multi-level early warning according to the pipeline vibration state.

5. A control method for a vibration monitoring device for a long-distance pipeline laid on the ground according to any one of claims 1 to 4, characterized in that: include: Collect the vibration signal of the pipeline monitoring point at a certain moment, and perform frequency domain analysis on the vibration signal through Fourier transform to identify the vibration frequency and vibration amplitude of the pipeline monitoring point at the current moment; Comparing the vibration frequency and the vibration amplitude with a preset safety threshold to evaluate whether the current pipeline vibration state exceeds the safety threshold; In response to exceeding the safety threshold, the valve opening is controlled and adjusted based on a pre-set control strategy to control the pipeline vibration within the safety threshold range.

6. The method according to claim 5, characterized in that The collecting of the vibration signal of the pipeline monitoring point at a certain moment, and performing frequency domain analysis on the vibration signal by Fourier transform algorithm to identify the vibration frequency and vibration amplitude of the pipeline monitoring point at the current moment, include: The vibration acceleration data of the pipeline on the three-dimensional space axis is collected by a piezoelectric acceleration sensor. The vibration frequency and vibration amplitude of the pipeline monitoring point at the current moment are obtained based on the vibration acceleration data and the Fourier transform result analysis, and the valve opening is adjusted according to the vibration frequency and the vibration amplitude.

7. The method according to claim 5, characterized in that In response to exceeding the safety threshold range, the valve opening is controlled and adjusted based on a pre-set control strategy to control the pipeline vibration within the safety threshold range, including: In response to the vibration amplitude being greater than the safety threshold and the valve not being fully open, the valve opening is reduced according to a predetermined adjustment step.

8. The method according to claim 7, characterized in that: The predetermined adjustment step is set to 1% to 5%.

9. The method according to claim 7, characterized in that: Also includes: In response to the vibration amplitude decreasing and not reaching the safety threshold after adjusting the valve opening, negative feedback regulation is performed.

10. The method according to claim 7, characterized in that Also includes: In response to adjusting the valve opening, if the vibration amplitude remains unchanged or increases, a multi-level warning is triggered.

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