WO2024031855A1 - Remote monitoring system for oil and gas in high-voltage bushing - Google Patents

Abstract

The present invention provides a remote monitoring system for oil and gas in a high-voltage bushing, comprising a hydrogen-temperature-pressure integrated sensor, a data access device, an intelligent remote transmission device, and a remote monitoring platform. The hydrogen-temperature-pressure integrated sensor is used for collecting monitoring data of dissolved hydrogen, temperature and pressure in the high-voltage bushing in real time and sending the monitoring data to the data access device; the data access device sends the received monitoring data to the intelligent remote transmission device; the intelligent remote transmission device sends the monitoring data to the remote monitoring platform; the remote monitoring platform identifies the state of the high-voltage bushing according to the monitoring data, generates a control instruction, and sends the control instruction to the intelligent remote transmission device; the intelligent remote transmission device sends the control instruction to the hydrogen-temperature-pressure integrated sensor; and the hydrogen-temperature-pressure integrated sensor performs an early-warning operation or an alarm operation according to the control instruction. The present invention implements on-line monitoring of the multi-detection amount of oil and gas in the high-voltage bushing without power failure, improving the monitoring efficiency and convenience.

Description

A high-voltage casing oil and gas remote monitoring system Technical field

The invention belongs to the technical field of electric power online monitoring, and specifically relates to a high-voltage casing oil and gas remote monitoring system.

Background technique

High-voltage bushings are the main insulation device outside the transformer box, and their insulation status is crucial to the safe operation of the transformer. As the voltage level of transformers increases, power accidents caused by bushing failure or damage occur frequently. High-voltage busbars are applied to both ends of the bushing. Under the action of high voltage, because the insulation structure of the bushing, such as oil-paper insulation, is composed of highly polymerized hydrocarbons, the carbon-hydrogen bonding energy is low, and hydrogen is first produced during the decomposition process. The casing is easily affected by the environment when exposed to the outside world for a long time. When the inside of the casing becomes damp, the water content in the insulating medium increases. Under the action of the electric field, hydrogen will also be electrolyzed to produce hydrogen. Hydrogen is the main component of the gas in the casing oil.

When the casing fails such as partial discharge, overheating, or moisture, the pressure and oil temperature inside the casing will also change significantly as the characteristic gas generated inside increases. Therefore, through comprehensive monitoring of the basic characteristics of oil and characteristic gas content, more comprehensive monitoring data can be provided for fault diagnosis of oil-less equipment.

However, at present, the oil chromatography method is mostly used to detect the oil and gas status of high-voltage casings. However, this method has a long test cycle, a single detection amount, and a small amount of oil inside the casing. Due to the need for on-site oil detection, a power outage is required when taking oil, and live detection is effective. The performance is poor and there is a lack of effective and reliable online monitoring methods. Therefore, there is an urgent need for a monitoring system that can remotely monitor the oil and gas status of high-voltage casings.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the above background technology and provide a high-voltage casing oil and gas remote monitoring system, which can remotely monitor the casing oil and gas status in real time and predict the status quantity in time, thereby realizing early warning of equipment hazards. Quickly diagnose faults.

The technical solution adopted by the present invention is: a high-pressure casing oil and gas remote monitoring system, including a hydrogen-temperature-pressure integrated sensor, a data access device, an intelligent remote transmission device and a remote monitoring platform; the hydrogen-temperature-pressure integrated sensor is used for The monitoring data of dissolved hydrogen, temperature and pressure in the high-voltage casing are collected in real time and sent to the data access device; the data access device is used to standardize the received monitoring data and then send it to the intelligent remote transmission device; intelligent remote transmission The device is used to send the received monitoring data to the remote monitoring platform; the remote monitoring platform is used to identify the status of the high-voltage casing based on the monitoring data, and generate control instructions based on the identification results to send to the intelligent remote transmission device; the intelligent remote transmission device It is used to send control instructions to the hydrogen-temperature-pressure integrated sensor through the data access device; the hydrogen-temperature-pressure integrated sensor is used to perform early warning operations or alarm operations according to the control instructions.

In the above technical solution, the data access device is electrically connected to multiple hydrogen-temperature-pressure integrated sensors; the remote monitoring platform communicates with multiple intelligent remote transmission devices. The present invention realizes large-scale monitoring by arranging data access devices and intelligent remote transmission devices respectively at multiple sites, and by arranging hydrogen-temperature-pressure integrated sensors on the tee branch pipes of high-voltage casing oil inlets at each site. Monitor a wide range of high-voltage bushings and identify the specific location of the failed high-voltage bushing based on the address information of different hydrogen-temperature-pressure integrated sensors.

The above technical solution also includes a cloud data platform and an APP/Web client; the remote monitoring platform communicates with the APP/Web client through the cloud data platform, and users access the remote monitoring platform data through the APP/Web client. Users can remotely monitor on-site high-voltage bushings through the APP/Web client. Users can generate fault diagnosis opinions through the high-voltage bushing data observed on the client.

In the above technical solution, the hydrogen-temperature-pressure integrated sensor includes a sensor body, an A/D converter, a communication module, a sampling control module, an alarm control module and an alarm module; the sensor body includes a hydrogen sensor, a temperature sensor and a pressure sensor. Sensor; the sensor body is electrically connected to the A/D converter; the A/D converter converts the monitoring data collected by the sensor body from analog signals into digital signals and transmits them to the communication module; the communication module sends the received monitoring data to the data access device; the communication module is also used to receive control instructions sent by the data access device, and send the control instructions to the sampling control module and alarm control module; the sampling control module drives the sensor body to adjust the sampling cycle of the sensor body according to the control instruction content; The alarm control module drives the alarm module to start the corresponding working mode according to the control instruction content. The hydrogen-temperature-pressure integrated sensor is installed on the tee branch of the oil intake port of the casing to ensure the subsequent sampling function of the oil intake port. The invention ensures the effective transmission of information through the A/D converter and the communication module, and ensures the effective execution of the control instructions through the connection between the sampling control module and the alarm control module and the communication module.

In the above technical solution, the intelligent remote transmission device includes an I1 protocol communication module, a data collection module, an information management module and an I2 protocol communication module; the I1 protocol communication module is communicatively connected with the data access device, and is also connected with the data collection module, The information management module is communicatively connected; the I2 protocol communication module is communicatively connected with the remote monitoring platform, and is also communicatively connected with the data collection module and the information management module; the data collection module is used to receive monitoring data sent by the data access device; the The information management module is used to receive control instructions issued by the remote monitoring platform. The invention ensures the effective transmission of information and the two-way communication between the sensor and the remote monitoring platform through the connection of the protocol communication module and the data collection module with the information management module.

In the above technical solution, the remote monitoring platform includes a data processing module, a threshold setting module, a threshold comparison module, a status monitoring module, a monitoring and early warning module, a fault alarm module and a fault maintenance module;

The data processing module is used to filter, convert, and combine the monitoring data received in real time to form the real-time operating status of the high-voltage casing;

The threshold setting module is used to set thresholds for determining whether the high-voltage bushing is in different states;

The threshold comparison module is used to correspond to the startup status monitoring module, monitoring and early warning module or fault alarm module fault diagnosis module based on the comparison results between the real-time operating status of the high-voltage bushing and the set threshold;

The status monitoring module is used to display the real-time operating status of high-voltage bushings;

The monitoring and early warning module is used to predict the future operating status of the high-voltage bushing and compare it with the set early warning value; for future operating status indicators that exceed the early warning value, it generates control instructions for early warning operations;

The fault alarm module is used to determine the fault type of the high-voltage bushing and generate corresponding control instructions for alarm operations for different fault types.

The remote monitoring platform of the present invention not only effectively realizes the operating status of high-voltage casing, but also predicts and alarms the status of high-voltage casing based on real-time detection data, distinguishes and diagnoses fault status, and generates corresponding prompt information to facilitate operators. Respond to high-voltage bushing failures in a timely manner.

In the above technical solution, the remote monitoring platform also includes a troubleshooting module; the troubleshooting module generates corresponding maintenance suggestions based on the fault type determined by the fault alarm module to help on-site personnel maintain and repair the equipment.

In the above technical solution, the threshold setting module is used to set the first threshold, the second threshold and the third threshold in order from small to large;

If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is lower than the first threshold, it is determined that the high-voltage bushing is not operating;

If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is higher than the first threshold and lower than the second threshold, the status monitoring module is started;

If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is higher than the second threshold and lower than the third threshold, the monitoring and early warning module is started;

If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is higher than the third threshold, the fault alarm module and fault maintenance module are started.

The present invention effectively distinguishes the operating status of the high-voltage casing through threshold division, and starts a corresponding model based on the operating status of the high-voltage casing to prompt the operator of the status of the high-voltage casing, making it easier for the operator to intuitively understand the status of the high-voltage casing.

In the above technical solution, the early warning operation includes driving the sampling control module to shorten the sampling cycle of the body sensor, and driving the alarm control module to control the alarm module to start the early warning working mode. The present invention further accurately predicts state changes by increasing the frequency of sensor sampling data.

In the above technical solution, the alarm operation includes driving the alarm control module to control the alarm module to start the corresponding alarm working mode based on the determined fault type, so as to facilitate the operator to intuitively understand the status of the high-voltage bushing.

The beneficial effects of the present invention are:

(1) Provide a complete remote monitoring system with the functions of intelligent monitoring of high-voltage bushing status quantities, data storage, status prediction, early warning and fault alarm maintenance. It can realize high-voltage bushing monitoring without power outage. Online monitoring of multiple detection quantities of oil and gas.

(2) Through the hydrogen-temperature-pressure integrated sensor, the operating status of the high-voltage casing can be accurately sensed based on changes in multiple state quantities, and timely early warning and alarm can be provided. The remote monitoring platform of the present invention can synchronously monitor multiple different high-voltage bushings at different sites, thereby helping site personnel quickly and conveniently locate faulty equipment and perform maintenance.

(3) The remote monitoring platform can set corresponding thresholds for different states of different types of high-voltage bushings to determine the operating status of high-voltage bushings, and output control instructions to the corresponding high-voltage bushings to realize the operation of high-voltage bushings. Local warning.

Description of drawings

Figure 1 is a framework diagram of a high-voltage casing oil and gas remote monitoring system provided by an embodiment of the present invention;

Figure 2 is a schematic diagram of a hydrogen-temperature-pressure integrated sensor module provided by an embodiment of the present invention;

Figure 3 is a schematic module diagram of an intelligent remote transmission device provided by an embodiment of the present invention;

Figure 4 is a module schematic diagram of the remote monitoring platform provided by the embodiment of the present invention;

Figure 5 is a monitoring flow chart of the remote monitoring platform provided by the embodiment of the present invention.

Among them, 1-hydrogen-temperature-pressure integrated sensor, 2-data access device, 3-intelligent remote transmission device, 4-remote monitoring platform, 5-cloud data platform, 6-APP/Web client; 11-sensor body , 111-hydrogen sensor, 112-temperature sensor, 113-pressure sensor, 12-A/D converter, 13-communication module, 14-sampling control module, 15-alarm control module, 16-alarm module, 17-power module ; 31-I1 protocol communication module, 32-data acquisition module, 33-information management module, 34-I2 protocol communication module, 35-power supply module; 41-data processing module, 42-threshold setting module, 43-threshold comparison Module, 44-status monitoring module, 45-monitoring and early warning module, 46-fault alarm module, 47-troubleshooting module.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention.

However, they do not limit the invention.

As shown in Figure 1, the invention provides a high-voltage casing oil and gas remote monitoring system, including: hydrogen-temperature-pressure integrated sensor 1, data access device 2, intelligent remote transmission device 3, remote monitoring platform 4, cloud data Platform 5, APP/Web client 6.

The hydrogen-temperature-pressure integrated sensor 1 is communicated with the data access device 2, and wired data communication and wireless data communication can be used. Wired data communication can use optical fiber communication, RS485, etc., and wireless data communication can use radio frequency, ZigBee, WiFi, Bluetooth, etc. to achieve communication diversification.

The data access device 2 can convert monitoring data that does not meet the IEC61850 communication protocol into monitoring data that meets the IEC61850 communication protocol, thereby ensuring standardized access of monitoring data from different interfaces and compatible with access of sensor monitoring information of different communication methods. .

The data access device 2 is communicatively connected with the intelligent remote transmission device 3 . The communication protocol adopts I1 protocol. Communication methods can use WiFi, ZigBee, RFID radio frequency and other methods.

The intelligent remote transmission device 3 is communicatively connected to the remote monitoring platform 4. The communication protocol adopts the I2 protocol, and the communication method can adopt 5G, GPRS or CDMA. The intelligent remote transmission device 3 carries out two-way communication with the remote monitoring platform. On the one hand, the monitoring data is uploaded to the remote monitoring platform, and on the other hand, the control instructions from the remote monitoring platform are received and sent to the hydrogen-temperature-pressure integrated sensor.

The data access device 2 can be connected to multiple hydrogen-temperature-pressure integrated sensors 1 . The remote monitoring platform 4 can be connected to multiple intelligent remote transmission devices 3 . Each site that needs to be monitored can have more than one data access device 2 and intelligent remote transmission device 3. Hydrogen-temperature-pressure integrated sensors 1 can be installed on multiple high-pressure bushings in a single site. The remote monitoring platform 4 is used to collect information from each hydrogen-temperature-pressure integrated sensor 1 to determine the status of each high-voltage bushing, and then generate corresponding control instructions and send them to the corresponding high-voltage bushing. pipe, thereby activating the alarm module corresponding to the high-voltage bushing to realize local alarm and early warning prompts for the high-voltage bushing.

The remote monitoring platform 4 is connected to the APP/Web client 6 through the cloud data platform 5. Users can directly access the data of each functional module of the remote monitoring platform 4 through the APP/Web client 6, and conduct remote monitoring of on-site equipment. Monitoring and remote guidance.

As shown in Figure 2, the hydrogen-temperature-pressure integrated sensor 1 is composed of a sensor body 11, an A/D converter 12, a communication module 13, a sampling control module 14, an alarm control module 15, an alarm module 16 and a power supply module 17 .

Among them, the sensor body 11 is composed of hydrogen, temperature and pressure sensor packages. The hydrogen sensor 111 uses a palladium alloy nano-film hydrogen sensor to convert the hydrogen concentration into a metal resistance value. The temperature sensor 112 uses a semiconductor sensor, which uses temperature to cause changes in semiconductor resistance. The pressure sensor 113 uses a piezoresistive sensor to convert pressure through the piezoresistive effect. The signal is converted into an electrical signal for output.

Among them, the hydrogen sensor 111 is integrated with a temperature compensation chip to improve the sensitivity of the hydrogen sensor.

The sensor body 11 is communicatively connected with the A/D converter 12 . The A/D converter 12 converts the monitoring data sensed by the sensor body 11 from analog signals into digital signals, and transmits them to the communication module 13. The communication module 13 communicates with the data access device 2 and sends monitoring data thereto.

The communication module 13 is also connected to the sampling control module 14 and the alarm control module 15, and sends the received control instructions from the data access device 2 to the sampling control module 14 and the alarm control module 15.

The sampling control module 14 is communicatively connected with the sensor body 11 and controls the sampling cycle of the sensor body 11 based on the received control instructions.

The alarm control module 15 is communicatively connected with the alarm module 16 and controls the startup mode of the alarm module 16 based on the received control instructions.

The alarm module 16 adopts an audible and visual alarm. When the high-voltage bushing or the sensor body fails, according to different faults, it will alarm by driving LED lights and buzzers in different combinations to remind on-site personnel to locate and carry out operations in a timely manner. repair.

The power module 17 is used to supply power to the sensor body 11 , the A/D converter 12 , the communication module 13 , the sampling control module 14 , the alarm control module 15 and the alarm module 16 .

The hydrogen-temperature-pressure integrated sensor 1 is installed on the tee branch of the oil intake port of the high-pressure casing to ensure the subsequent sampling function of the oil intake port.

In the present invention, by arranging data access devices 2 and intelligent remote transmission devices 3 respectively at multiple sites, and by arranging hydrogen-temperature-pressure integrated sensors 1 on the tee branch pipes of each high-voltage casing oil inlet at each site, Realize the monitoring of a wide range of high-voltage bushings, and identify the specific location of the failed high-voltage bushing based on the address information of different hydrogen-temperature-pressure integrated sensors 1. The hydrogen-temperature-pressure integrated sensor 1 sends the type information, address information and real-time status quantity of the corresponding high-voltage bushing to the remote monitoring platform 4 via the data access device 2 and the intelligent remote transmission device 3.

As shown in FIG. 3 , the intelligent remote transmission device 3 includes an I1 protocol communication module 31 , a data collection module 32 , an information management module 33 , an I2 protocol communication module 34 and a power supply module 35 .

The I1 protocol communication module 31 is communicatively connected with the data access device 2, and is also connected with the data collection module 32 and the information management module 33.

The I2 protocol communication module 34 is communicatively connected with the remote monitoring platform 4, and is also communicatively connected with the data collection module 32 and the information management module 33.

The data collection module 32 is used to receive monitoring data collected by the sensor body.

The information management module 33 is used to receive control instructions issued by the remote monitoring platform 4 .

The intelligent remote transmission device 3 carries out two-way communication with the remote monitoring platform 4. On the one hand, the monitoring data is uploaded to the remote monitoring platform; on the other hand, the control instructions of the remote monitoring platform are received and the address information is analyzed, and the control instructions are sent to the designated hydrogen-temperature-pressure integrated sensor 1.

As shown in Figure 4, the remote monitoring platform 4 includes: data processing module 41, threshold setting module 42, threshold comparison module 43, status monitoring module 44, monitoring and early warning module 45, fault alarm module 46 and fault maintenance module 47 .

The data processing module 41 is used to filter, convert, and combine the received original monitoring data of each high-voltage bushing. Remove bad data and interference signals, establish a database, and form the real-time operating status of each high-voltage bushing. The real-time operating status quantity of each high-voltage bushing is classified according to the type of high-voltage bushing, so that the historical data of the real-time operating status quantity of each high-voltage bushing is used as historical status indicator data.

The threshold setting module 42 is used to set thresholds for different operating states of various types of high-voltage bushings.

Specifically, the threshold setting module 42 compares the historical status indicator data with the empirical data of similar high-voltage bushings based on the high-voltage bushing type, and sets each indicator of the status quantity of each type of high-voltage bushing from small to large. The first threshold, the second threshold and the third threshold are increased in sequence. The state quantity indicators include temperature indicators, pressure indicators and hydrogen concentration indicators.

The threshold setting method of the threshold setting module 42 includes the following steps:

High-voltage bushings are classified according to different manufacturers, models, and working conditions. For similar high-voltage bushings, statistical analysis is performed on the historical status indicator data and the empirical data of similar high-voltage bushings, so as to obtain the historical data distribution model of each status quantity indicator of each type of high-voltage bushing in different operating states, such as Weibull Distribution model, AR distribution model, etc. The historical status indicator data and similar high-voltage casing experience data can be obtained through manual export or automatic collection by the system. The threshold setting module 42 calculates the thresholds of each state quantity indicator of various types of high-voltage bushings under different operating states based on the statistical distribution model of historical data, and sets the first threshold, the second threshold and the third threshold based on the calculated thresholds. . The first threshold is used to represent the critical value when the high-voltage bushing is not in operation or the remote monitoring system has not yet collected data. The second threshold is used to characterize the critical value of the failure tendency of the high-voltage bushing. The third threshold is used to characterize the critical value of high-voltage bushing failure.

The threshold comparison module 43 queries the first threshold, the second threshold and the third threshold corresponding to each state quantity indicator based on the type of each high-voltage bushing. According to the threshold interval in which each status quantity indicator in the real-time operating status quantity of a certain high-voltage bushing is located, the status monitoring module 44, the monitoring and early warning module 45, the fault alarm module 46 and the fault diagnosis module 47 are respectively started for the high-voltage bushing. , and perform the corresponding functions of the activated module for the high-voltage bushing.

If the threshold comparison module 43 determines that the three indicators in the real-time operating status of a certain high-voltage bushing are all lower than the corresponding first threshold, then it is determined that the high-voltage bushing is not operating;

If the threshold comparison module 43 determines that any indicator in the real-time operating status quantity of a certain high-voltage bushing is higher than the corresponding first threshold and lower than the second threshold, then the status monitoring module is started for the high-voltage bushing;

If the threshold comparison module 43 determines that any indicator of the real-time operating status of a certain high-voltage bushing is higher than the corresponding second threshold and lower than the third threshold, then the monitoring and early warning module is started for the high-voltage bushing;

If the threshold comparison module 43 determines that any indicator of the real-time operating status of the high-voltage bushing is higher than the corresponding third threshold, the fault alarm module and the fault maintenance module are started for the high-voltage bushing.

The status monitoring module 44 uses curves, graphics, tables and other methods to visually display the real-time operating status of all high-voltage bushings.

The monitoring and early warning module 45 uses an appropriate prediction algorithm to evaluate the future health status development trend of the high-voltage casing, and sets an early-warning value for the corresponding high-voltage casing status monitoring quantity based on the evaluation results. A certain indicator of the real-time operating status quantity that exceeds the early warning value , issue an early warning message. The monitoring and early warning module sends early warning information to the corresponding high-voltage bushing based on the address information. The alarm control module of the high-voltage bushing activates the alarm module based on the early warning information.

Assessing the future health status development trend of equipment is to perform status inference on a high-voltage casing based on its real-time operating status and historical data. The prediction methods include: curve fitting method, short-term time series (ARIMA) method, Based on neural network methods, etc. Based on the condition prediction results of a certain high-voltage bushing, the future deterioration state of the high-voltage bushing can be warned in advance.

The fault alarm module 46 performs fault identification on the abnormal real-time operating status of a certain high-voltage bushing, determines the fault type, and issues different alarm messages for different fault types. The fault alarm module 46 sends alarm information to the corresponding high-voltage bushing based on the address information. The alarm control module of the high-voltage bushing activates the alarm module based on the alarm information.

The fault maintenance module 47 puts forward corresponding maintenance suggestions based on different fault types and possible fault causes to help on-site personnel maintain and repair the equipment.

Based on the abnormal real-time operating status of a certain high-voltage bushing, the fault alarm module 46 can use fault identification methods such as fault tree methods and neural network methods to conduct fault cause analysis and fault handling suggestions for the equipment.

Among them, the main fault types of high-voltage bushings include oil leakage, porcelain bushing flashover, insulation moisture, bushing heating, etc.

The fault alarm module 46 determines the corresponding fault problem based on the abnormal indicators in the real-time operating status of a certain high-voltage bushing. For example, if the hydrogen concentration exceeds the standard, it can be judged that the insulation inside the bushing is damp, etc.; if the pressure exceeds the standard, it can be judged that an internal insulation fault has occurred; if the temperature exceeds the standard, It can be judged that overheating insulation defects have occurred; the simultaneous increase of hydrogen and pressure can be judged to cause sudden insulation failure due to moisture; the simultaneous increase of hydrogen and temperature can be judged to be an insulation fault such as partial discharge; the increase of temperature and the decrease of pressure can be judged It is a fault such as oil leakage.

The fault maintenance module 47 obtains the corresponding possible fault cause according to the fault type output by the fault alarm module 4 . If the insulation becomes damp, it may be caused by insufficient drying or aging of the casing insulation paper. To ensure the service life of the casing, corresponding drying treatment or replacement can be taken, which is the corresponding maintenance suggestion. There is a one-to-one correspondence between fault type, fault cause and maintenance suggestions. The fault maintenance module 47 can output the corresponding fault cause and maintenance suggestions according to the fault type.

As shown in Figure 5, the monitoring process of a high-voltage casing oil and gas remote monitoring system provided by the present invention for a certain high-voltage casing is:

(1) Complete the normal start-up of each device of the high-voltage casing oil and gas remote monitoring system.

(2) The hydrogen-temperature-pressure integrated sensor senses real-time monitoring data of dissolved hydrogen, temperature, and pressure in the high-pressure casing, and the data access device sends the monitoring data to the intelligent remote transmission device.

(3) The intelligent remote transmission device uploads monitoring data to the remote monitoring platform.

(4) The remote monitoring platform analyzes and determines the received monitoring data after data processing:

If the real-time monitoring data of dissolved hydrogen, temperature, and pressure are all lower than the first threshold, it is determined that the high-voltage casing equipment is not operating;

If any data indicator of the real-time monitoring data of dissolved hydrogen, temperature, and pressure is higher than the first threshold and lower than the second threshold, start the status monitoring module;

If any data index of the real-time monitoring data of dissolved hydrogen, temperature, and pressure is higher than the second threshold and lower than the third threshold, the monitoring and early warning module is started, and a control instruction to shorten the sensor sampling cycle is issued, which is sent to the computer through the intelligent remote transmission device. The hydrogen-temperature-pressure integrated sensor increases the frequency of sensor sampling data, further accurately predicts state changes, and issues early warning information for monitoring data indicators that exceed the early warning value and sends it to the intelligent remote transmission device. The intelligent remote transmission device will issue the early warning The information is sent to the hydrogen-temperature-pressure integrated sensor, and the alarm module is controlled to issue corresponding early warning information;

If any data indicator of the real-time monitoring data of dissolved hydrogen, temperature, and pressure is higher than the third threshold, the fault alarm module and the fault maintenance module are started, and different control instructions are issued according to different fault types detected based on the real-time detection data. The intelligent remote transmission module and data access device send different control instructions to the hydrogen-temperature-pressure integrated sensor control alarm module to issue alarms in different forms. At the same time, the troubleshooting module puts forward corresponding maintenance suggestions based on the diagnosed fault type. Users can check the maintenance suggestions through the APP/Web client to assist the on-site maintenance process.

The present invention is also applicable to online monitoring quantities such as oil chromatography, partial discharge, vibration, etc. of high-voltage bushings. By setting different integrated sensors and adjusting corresponding prediction programs and fault diagnosis programs in each module, corresponding functions can be realized.

Contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims (10)

1. A high-pressure casing oil and gas remote monitoring system, characterized by: including a hydrogen-temperature-pressure integrated sensor, a data access device, an intelligent remote transmission device and a remote monitoring platform;

   The hydrogen-temperature-pressure integrated sensor is used to collect monitoring data of dissolved hydrogen, temperature, and pressure in the high-voltage casing in real time and send it to the data access device;

   The data access device is used to standardize the received monitoring data and then send it to the intelligent remote transmission device;

   The intelligent remote transmission device is used to send the received monitoring data to the remote monitoring platform;

   The remote monitoring platform is used to identify the status of the high-voltage casing based on monitoring data, and generate control instructions based on the identification results to send to the intelligent remote transmission device;

   The intelligent remote transmission device is used to send control instructions to the hydrogen-temperature-pressure integrated sensor through the data access device;

   The hydrogen-temperature-pressure integrated sensor is used to perform pre-warning operations or alarm operations according to control instructions.
2. A high-pressure casing oil and gas remote monitoring system according to claim 1, characterized in that: the data access device is electrically connected to a plurality of hydrogen-temperature-pressure integrated sensors; the remote monitoring platform is connected to a plurality of intelligent remote device to communicate.
3. A high-voltage casing oil and gas remote monitoring system according to claim 1, characterized in that: it also includes a cloud data platform and an APP/Web client; the remote monitoring platform communicates with the APP/Web client through the cloud data platform. , users access remote monitoring platform data through the APP/Web client.
4. A high-pressure casing oil and gas remote monitoring system according to claim 1, characterized in that: the hydrogen-temperature-pressure integrated sensor includes a sensor body, an A/D converter, a communication module, a sampling control module, and an alarm control module. and alarm module;

   The sensor body includes a hydrogen sensor, a temperature sensor and a pressure sensor; the sensor body is electrically connected to the A/D converter;

   The A/D converter converts the monitoring data collected by the sensor body from analog signals into digital signals and transmits them to the communication module;

   The communication module sends the received monitoring data to the data access device;

   The communication module is also used to receive control instructions sent by the data access device, and send the control instructions to the sampling control module and alarm control module;

   The sampling control module drives the sensor body to adjust the sampling cycle of the sensor body according to the control instruction content;

   The alarm control module drives the alarm module to start the corresponding working mode according to the control instruction content.
5. A high-voltage casing oil and gas remote monitoring system according to claim 1, characterized in that: the intelligent remote transmission device includes an I1 protocol communication module, a data acquisition module, an information management module and an I2 protocol communication module;

   The I1 protocol communication module is communicatively connected with the data access device, and is also communicatively connected with the data acquisition module and the information management module;

   The I2 protocol communication module is connected to the remote monitoring platform, and is also connected to the data collection module and the information management module;

   The data acquisition module is used to receive monitoring data sent by the data access device; the information management module is used to receive control instructions issued by the remote monitoring platform.
6. A high-voltage casing oil and gas remote monitoring system according to claim 4, characterized in that: the remote monitoring platform includes a data processing module, a threshold setting module, a threshold comparison module, a status monitoring module, a monitoring and early warning module, a fault monitoring module, and a fault monitoring module. Alarm module and troubleshooting module;

   The data processing module is used to filter, convert, and combine the monitoring data received in real time to form the real-time operating status of the high-voltage casing;

   The threshold setting module is used to set thresholds for determining whether the high-voltage bushing is in different states;

   The threshold comparison module is used to correspond to the startup status monitoring module, monitoring and early warning module or fault alarm module fault diagnosis module based on the comparison results between the real-time operating status of the high-voltage bushing and the set threshold;

   The status monitoring module is used to display the real-time operating status of high-voltage bushings;

   The monitoring and early warning module is used to predict the future operating status of the high-voltage bushing and compare it with the set early warning value; for future operating status indicators that exceed the early warning value, it generates control instructions for early warning operations;

   The fault alarm module is used to determine the fault type of the high-voltage bushing and generate corresponding control instructions for alarm operations for different fault types.
7. A high-voltage casing oil and gas remote monitoring system according to claim 6, characterized in that: the remote monitoring platform further includes a fault maintenance module; the fault maintenance module generates corresponding maintenance suggestions according to the fault type determined by the fault alarm module.
8. A high-voltage casing oil and gas remote monitoring system according to claim 7, characterized in that: the threshold setting module is used to set the first threshold, the second threshold and the third threshold in order from small to large;

   If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is lower than the first threshold, it is determined that the high-voltage bushing is not operating or the remote monitoring system has not collected data;

   If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is higher than the first threshold and lower than the second threshold, the status monitoring module is started;

   If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is higher than the second threshold and lower than the third threshold, the monitoring and early warning module is started;

   If the threshold comparison module determines that the real-time operating status of the high-voltage bushing is higher than the third threshold, the fault alarm module and fault maintenance module are started.
9. A high-voltage casing oil and gas remote monitoring system according to claim 8, characterized in that: the early warning operation includes driving the sampling control module to shorten the sampling cycle of the body sensor, and driving the alarm control module to control the alarm module to start the early warning working mode.
10. A high-voltage casing oil and gas remote monitoring system according to claim 8, characterized in that the alarm operation includes driving the alarm control module to control the alarm module to activate the corresponding alarm working mode based on the determined fault type.

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