CN112653169A - Online remote monitoring device for main pump of converter station valve cooling system - Google Patents
Online remote monitoring device for main pump of converter station valve cooling system Download PDFInfo
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- CN112653169A CN112653169A CN202011285046.4A CN202011285046A CN112653169A CN 112653169 A CN112653169 A CN 112653169A CN 202011285046 A CN202011285046 A CN 202011285046A CN 112653169 A CN112653169 A CN 112653169A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses an online remote monitoring device for a main pump of a converter station valve cooling system, which relates to the technical field of power grid data acquisition and comprises the following components: a data acquisition module: the device comprises a three-axis vibration sensor, a temperature sensor, a sucker and an LORA unit; a data receiving module: the intelligent valve cooling system comprises a main control unit, a second LORA unit, a main clock unit and a man-machine interaction interface, and can monitor the state and diagnose the fault of valve cooling system equipment, avoid abnormal sound in a pump or stop the pump for maintenance when a motor fails, and improve the operation and maintenance capacity of a power grid.
Description
Technical Field
The invention relates to the technical field of power grid data acquisition, in particular to a converter station valve cooling system main pump online remote monitoring device.
Background
In a direct current transmission system, a valve tower equipment cooling system is an important component of a converter station and is mainly used for cooling a silicon controlled rectifier valve, discharging power consumption and heat productivity of each element on the valve body to the outside of a valve hall and ensuring the operation junction temperature of a thyristor to be within a normal range. The valve cooling system adopts a water cooling mode, wherein the water cooling mode comprises external cold water and internal cold water, the internal cold water sends cooling water to each layer of the valve tower through a main circulating pump (called a main pump for short) to play a cooling role, and the external cold water cools the internal cold water which exchanges heat from the valve hall. Tripping factors of the direct current transmission system with the valve cooling system fault are many, wherein the main water flow and the valve tower pressure difference have great relation with the operation of a main pump.
In a valve cooling system, the main reasons of vibration and noise of a main pump motor and a water pump are mechanical faults, such as cavitation, poor assembly, non-coaxial pump and original motor, insufficient basic rigidity or basic sinking, poor pipe arrangement strength, damage of a balance disc or a bearing and the like. When the pump body vibrates abnormally, the screws or the basic screws of pump body parts are loosened, and the temperature of a motor or a bearing exceeds a set temperature, abnormal sound exists in the pump or the motor breaks down, and the pump must be stopped for maintenance, so that the problem of urgently solving the condition monitoring and fault diagnosis of valve cooling system equipment is solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the online remote monitoring device for the main pump of the converter station valve cooling system, which can be used for carrying out state monitoring and fault diagnosis on valve cooling system equipment, avoiding pump stopping and maintenance when abnormal sound exists in a pump or a motor fails, and improving the operation and maintenance capacity of a power grid.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a cold online remote monitoring device of system main pump of converter station valve, it includes:
a data acquisition module: the device comprises a three-axis vibration sensor, a temperature sensor, a sucker and an LORA unit, wherein the three-axis vibration sensor is used for acquiring vibration data of a valve cooling main pump and a main pump check valve of a converter station valve cooling system; the temperature sensor is used for acquiring temperature data of a valve cooling main pump and a main pump check valve of a converter station valve cooling system; the sucking disc is used for fixing the data acquisition module on a valve cooling main pump and a main pump check valve of a converter station valve cooling system respectively; the first LORA unit transmits the collected vibration data and the temperature data to a data receiving module;
a data receiving module: the system comprises a main control unit, a second LORA unit, a main clock unit and a human-computer interaction interface, wherein the second LORA unit is used for receiving the vibration data and the temperature data transmitted by the first LORA unit and transmitting the vibration data and the temperature data to the main control unit; the master clock unit is used for providing clock data for the master control unit.
The converter station valve cooling system main pump online remote monitoring device further comprises a main control module data storage unit and a data transmission indicating unit, wherein the main control module data storage unit is used for storing parameter setting information of a data receiving module; the data transmission indicating unit is used for displaying different indicating lamps according to the data transmission state when the main control unit and the main control module data storage unit perform data transmission.
The converter station valve cooling system main pump online remote monitoring device further comprises an alarm unit, wherein the alarm unit is connected with the human-computer interaction interface, the main control unit processes the vibration data and the temperature data to generate a fault instruction, and the alarm unit receives the fault instruction and sends alarm information.
The converter station valve cooling system main pump online remote monitoring device comprises a main control unit, a master control unit, a power isolation chip, a signal isolation chip, a power isolation chip and a power isolation chip, wherein the main control unit is connected with an upper computer through an RS485 interface; and the upper computer realizes data interaction with the main control unit and is used for monitoring the running states of a valve cooling main pump and a main pump check valve of a converter station valve cooling system on line.
The converter station valve cooling system main pump online remote monitoring device further comprises an external data storage unit, wherein the external data storage unit is connected with the human-computer interaction interface through a USB-TTL interface, and the external data storage unit is used for storing historical data of the vibration data and the temperature data.
According to the converter station valve cooling system main pump online remote monitoring device, further, the main clock unit adopts a high-precision clock chip DS3231 and is configured with a battery, so that clock operation can be kept when the device is powered down.
The on-line remote monitoring device for the main pump of the cold system of the converter station valve is characterized in that the main control unit adopts an STM32F1 series 32-bit CPU.
In the above online remote monitoring device for the main pump of the converter station valve cooling system, further, the first LORA unit and the second LORA unit both use SX1278 radio frequency chips manufactured by SEMTECH, and the operating frequency band is 410-441 MHz.
The on-line remote monitoring device for the main pump of the converter station valve cooling system further comprises a data acquisition module which adopts a sensor of a type of a capital-extension TX9L233 LORA.
According to the converter station valve cooling system main pump online remote monitoring device, the human-computer interaction interface adopts a step GL-100E touch screen.
Compared with the prior art, the invention has the beneficial effects that: the invention can monitor the state and diagnose the fault of the valve cooling system equipment, avoid the pump stopping for maintenance when abnormal sound exists in the pump or the motor has fault, and improve the operation and maintenance capability of the power grid.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a usage scenario diagram of an online remote monitoring device according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a data acquisition module and a data receiving module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example (b):
it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 2, fig. 1 is a usage scenario diagram of an online remote monitoring device according to an embodiment of the present invention; fig. 2 is a schematic circuit diagram of a data acquisition module and a data receiving module according to an embodiment of the present invention.
The utility model provides a cold online remote monitoring device of system main pump of converter station valve, it includes: the device comprises a data acquisition module and a data receiving module, wherein the data acquisition module comprises a three-axis vibration sensor, a temperature sensor, a sucker and an LORA unit, wherein the three-axis vibration sensor is used for acquiring vibration data of a valve cooling main pump and a main pump check valve of a converter station valve cooling system; the temperature sensor is used for acquiring temperature data of a valve cooling main pump and a main pump check valve of a converter station valve cooling system; the sucking disc is used for fixing the data acquisition module on a valve cooling main pump and a main pump check valve of a converter station valve cooling system respectively; the first LORA unit transmits the collected vibration data and the temperature data to a data receiving module. The data receiving module comprises a main control unit, a second LORA unit, a main clock unit and a human-computer interaction interface, wherein the second LORA unit is used for receiving the vibration data and the temperature data transmitted by the first LORA unit and transmitting the vibration data and the temperature data to the main control unit; the master clock unit is used for providing clock data for the master control unit.
The device detects and analyzes the vibration and the temperature of the main pump, and performs point distribution, data acquisition and frequency spectrum analysis on the vibration of the main pump from the motor and the rotating shaft. The frequency spectrum analysis of the motor bearing respectively collects data of the motor bearing cover in the three-axis direction running state, monitoring points are arranged at the motor and the pump shaft end, so that the monitoring of the pump body, the motor displacement, the vibration and the temperature parameters to a monitoring interface of a main control room can be realized, the running information can be continuously displayed and recorded, after the valve-cooled main pump online monitoring system is installed, important information can be provided for early discrimination of various mechanical faults of a main pump, and an alarm or stop signal is sent out when the preset running value is exceeded. The device is divided into a main pump working condition acquisition end and a receiving end (namely a data acquisition module and a data receiving module). The collection end contains the data acquisition module, and this module is gathered main pump operating condition motor, bearing vibration, motor temperature, long data when moving to transmit information to the receiving terminal through wireless transmission mode, realize the function of the long-distance online main pump operating condition in different positions. The data acquisition end and the receiving end of the converter station valve cooling main pump online monitoring device adopt an LORA spread spectrum wireless communication technology, and the converter station valve cooling main pump online monitoring device has the characteristics of long transmission distance, low power consumption, strong anti-interference capability and the like. The communication protocol between the data acquisition end and the receiving end of the device can be customized according to the user requirements, leakage of communication information is avoided, and the safety is high. The data acquisition end and the receiving end adopt the same hardware architecture, different data are switched and checked through receiving end software, hardware and a die are universal, and equipment development cost can be effectively reduced.
As an optional implementation manner, in some embodiments, the data processing system further includes a main control module data storage unit and a data transmission indicating unit, where the main control module data storage unit is used to store parameter setting information of the data receiving module; the data transmission indicating unit is used for displaying different indicating lamps according to the data transmission state when the main control unit and the main control module data storage unit perform data transmission.
As an optional implementation manner, in some embodiments, the system further includes an alarm unit, and the alarm unit is connected to the human-computer interaction interface, wherein the main control unit processes the vibration data and the temperature data to generate a fault instruction, and the alarm unit receives the fault instruction and sends out alarm information.
As an optional implementation manner, in some embodiments, the master control unit is connected to an upper computer through an RS485 interface, wherein the RS485 interface adopts a signal isolation chip to perform signal isolation and adopts a power isolation chip to isolate a power supply; and the upper computer realizes data interaction with the main control unit and is used for monitoring the running states of a valve cooling main pump and a main pump check valve of a converter station valve cooling system on line.
As an optional implementation manner, in some embodiments, the system further includes an external data storage unit, where the external data storage unit is connected to the human-computer interaction interface through a USB-TTL interface, and the external data storage unit is configured to store historical data of the vibration data and the temperature data.
As an optional implementation mode, in some embodiments, the master clock unit adopts a high-precision clock chip DS3231 and is configured with a battery, so that the clock operation can be kept when the device is powered down.
As an alternative implementation, in some embodiments, the main control unit employs an STM32F1 series 32-bit CPU.
As an optional implementation manner, in some embodiments, the first LORA unit and the second LORA unit both use radio frequency chips of SEMTECH corporation SX1278, and the operating frequency band is 410-.
As an alternative implementation, in some embodiments, the data acquisition module employs a sensor of the type of the metro core TX9L233 LORA.
As an alternative implementation, in some embodiments, the human-computer interaction interface is a touch screen GL-100E of the department of pediatrics.
In this embodiment, the hardware components of the main pump monitoring apparatus are described as follows:
(1) a main control unit: the transmitting end/receiving end CPU adopts STM32F1 series 32-bit CPU designed by embedded application with high performance, low cost and low power consumption of ST company, and the series CPU has rich hardware peripheral structure and strong operational capability. The control module integrates a working data transmission indicator light, the CPU board integrates a power indicator light and an integrated sound alarm, and the alarm is prompted when the received monitoring data exceeds a preset value; the power input interface is externally connected with a 12V and 1A power adapter; the data can be sent to a cloud platform, and a mobile phone computer checks and receives alarm information in an equivalent way; the system has a firmware upgrading function and internal logic calculation, and actively judges alarm abnormity; the mobile phone alarm system supports the matched use with upper computer software, configuration software and PLC equipment, supports a software platform to check data, and receives alarm information through mobile phone short messages and micro messages.
2) The signal acquisition interface is provided with interface overcurrent and overvoltage fault node protection, and the interface is provided with overvoltage and reverse connection protection measures, so that the signal acquisition interface has higher reliability and antijamming capability.
(3) First and second LORA units: the radio frequency chip is adopted by SEMTECH SX1278, and the working frequency band is 410-441 MHz.
(4) Data acquisition module adopts the one-tenth to open up the sensor of core TX9L233LORA model, the integrated LORA unit of sensor, support wireless data transmission, built-in "triaxial vibration + temperature measurement's novel data acquisition device, based on the LORA agreement, but low-power consumption long distance wireless transmission, it sends monitor platform with wireless mode to detect data, support characteristic value and original numerical value transmission, make things convenient for multiple application scene, the built-in battery power supply of sensor, also external power source supplies power, cooperation magnetic base mounting means can confirm mounted position at will.
(5) A human-computer interaction interface: the HMI unit adopts a GL-100E touch screen of a department of pediatrics, has an intuitive man-machine exchange function, has a wide working temperature range, and can normally work in a temperature range of-20 ℃ to +70 ℃. The touch screen supports data checking, data storage and historical data export functions, and supports an Ethernet interface and a general field protocol MODBUS. The HMI displays the vibration data graph of the unit, displays the marks of each measuring point and the current vibration value at the corresponding position on the graph, the system continuously checks and updates the alarm state of the current value of each measuring point, if the alarm occurs, the corresponding marks change the color, so that the operation and maintenance personnel of the converter station can timely know and master the running state of the main pump and analyze and diagnose the abnormality or the failure of the equipment. Meanwhile, other device management personnel on the network can know the running states of all devices and predict the change trend, and can consult the problems of different troubles of the devices.
(6) A master clock unit: the real-time clock circuit can be used for timing year, month, day, week, hour, minute and second, has a leap year compensation function, and has the working voltage of 2.5V-5.5V. The synchronous communication with CPU is carried out by three-wire interface, and the clock signal or RAM data of multiple bytes can be transmitted at one time by burst mode. The master clock unit is provided with a battery, and can keep the clock to continuously provide accurate timing when the device is powered down.
(7) The main control module data storage unit: the parameter information used for the storage device comprises data acquisition interval time, alarm parameters and the like, and important parameter information is ensured not to be lost when the device is powered down.
(8) An external data storage unit: and the method is used for storing the running data of the main pump motor. The portable intelligent storage device can support a 128G storage card, stores XYZ three-axis vibration data, temperature, running time and other data according to one sampling point per minute, and can store main pump information of not less than one year.
(9) The device alarm unit adopts a CK9561 four-tone alarm chip and adopts different alarm information for fault information such as temperature, vibration data interruption, exceeding of a fixed value, mutation and the like.
(10) An RS485 interface: the RS485 interface adopts the signal isolation chip to isolate signals, adopts the power isolation chip to isolate the power supply, and is used for carrying out background communication with a PC (personal computer), monitoring the working condition of the online monitoring device, and realizing the functions of a communication interface with an upper computer and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. The utility model provides a cold online remote monitoring device of system main pump of converter station valve which characterized in that includes:
a data acquisition module: the device comprises a three-axis vibration sensor, a temperature sensor, a sucker and an LORA unit, wherein the three-axis vibration sensor is used for acquiring vibration data of a valve cooling main pump and a main pump check valve of a converter station valve cooling system; the temperature sensor is used for acquiring temperature data of a valve cooling main pump and a main pump check valve of a converter station valve cooling system; the sucking disc is used for fixing the data acquisition module on a valve cooling main pump and a main pump check valve of a converter station valve cooling system respectively; the first LORA unit transmits the collected vibration data and the temperature data to a data receiving module;
a data receiving module: the system comprises a main control unit, a second LORA unit, a main clock unit and a human-computer interaction interface, wherein the second LORA unit is used for receiving the vibration data and the temperature data transmitted by the first LORA unit and transmitting the vibration data and the temperature data to the main control unit; the master clock unit is used for providing clock data for the master control unit.
2. The on-line remote monitoring device for the main pump of the cold system of the converter station valve as claimed in claim 1, further comprising a data storage unit of the main control module and a data transmission indicating unit, wherein the data storage unit of the main control module is used for storing parameter setting information of the data receiving module; the data transmission indicating unit is used for displaying different indicating lamps according to the data transmission state when the main control unit and the main control module data storage unit perform data transmission.
3. The on-line remote monitoring device for the main pump of the converter station valve cooling system according to claim 1, further comprising an alarm unit, wherein the alarm unit is connected with the human-computer interaction interface, wherein the main control unit processes the vibration data and the temperature data to generate a fault instruction, and the alarm unit receives the fault instruction and sends alarm information.
4. The on-line remote monitoring device for the main pump of the converter station valve cooling system according to claim 1, wherein the main control unit is connected with an upper computer through an RS485 interface, wherein the RS485 interface adopts a signal isolation chip for signal isolation and adopts a power isolation chip for power isolation; and the upper computer realizes data interaction with the main control unit and is used for monitoring the running states of a valve cooling main pump and a main pump check valve of a converter station valve cooling system on line.
5. The on-line remote monitoring device for the main pump of the valve cooling system of the converter station as claimed in claim 1, further comprising an external data storage unit, wherein the external data storage unit is connected with the human-computer interaction interface through a USB-TTL interface, and the external data storage unit is configured to store historical data of the vibration data and the temperature data.
6. The on-line remote monitoring device for the main pump of the cold system of the converter station valve as claimed in claim 1, wherein the main clock unit adopts a high-precision clock chip DS3231 and is configured with a battery, so as to keep clock running when the device is powered down.
7. The on-line remote monitoring device for the main pump of the cold system of the converter station valve as claimed in claim 1, wherein the main control unit adopts STM32F1 series 32-bit CPU.
8. The on-line remote monitoring device for the main pump of the valve cooling system of the converter station as claimed in claim 1, wherein the first LORA unit and the second LORA unit both use SEMTECH SX1278 radio frequency chips with an operating frequency of 410-441 MHz.
9. The on-line remote monitoring device for the main pump of the cold system of the converter station valve according to claim 1, wherein the data acquisition module adopts a sensor of a type of a capital-extension TX9L233 LORA.
10. The on-line remote monitoring device for the main pump of the converter station valve cooling system according to claim 1, wherein the human-computer interaction interface is a step GL-100E touch screen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285046.4A CN112653169A (en) | 2020-11-17 | 2020-11-17 | Online remote monitoring device for main pump of converter station valve cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011285046.4A CN112653169A (en) | 2020-11-17 | 2020-11-17 | Online remote monitoring device for main pump of converter station valve cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113759813A (en) * | 2021-10-08 | 2021-12-07 | 江苏久创电气科技有限公司 | Intelligent inspection comprehensive monitoring system for extra-high pressure valve hall |
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