CN211291864U - Pressure pulsation on-line monitoring system - Google Patents
Pressure pulsation on-line monitoring system Download PDFInfo
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- CN211291864U CN211291864U CN201921785659.7U CN201921785659U CN211291864U CN 211291864 U CN211291864 U CN 211291864U CN 201921785659 U CN201921785659 U CN 201921785659U CN 211291864 U CN211291864 U CN 211291864U
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Abstract
The utility model discloses a pressure pulsation on-line monitoring system for the on-line monitoring of hydraulic turbine runner pressure pulsation, the system includes: the monitoring master control device is used for remotely monitoring the pressure pulsation of the flow channel of the water turbine; the in-situ monitoring device comprises at least one in-situ monitoring device, the in-situ monitoring device is connected with the monitoring master control device through Ethernet in a data mode, the in-situ monitoring device comprises an online monitoring analyzer and at least one pressure pulsation sensing instrument, the pressure pulsation sensing instrument is installed at each runner of the water turbine and used for sensing and acquiring pressure pulsation signals of the runner of the water turbine, and the online monitoring analyzer is connected with the at least one pressure pulsation sensing instrument in a signal mode and used for monitoring the pressure pulsation of the runner of the water turbine in situ. The utility model discloses a system composition structure is succinct and the reliability is high, is convenient for maintain, and monitoring data is detailed, can carry out in situ monitoring and remote monitoring simultaneously, has higher real-time and stability.
Description
Technical Field
The utility model discloses the general speaking relates to hydraulic turbine monitoring field particularly, relates to a pressure pulsation on-line monitoring system.
Background
The hydraulic turbine is a hydraulic prime mover which converts water flow energy into rotating mechanical energy of a rotating wheel, mainly utilizes the kinetic energy and the potential energy of water flow to do work, is main power equipment of a hydropower station and is used for driving a generator to work to obtain electric energy, but the hydraulic instability in a water turbine runner during the operation process of the hydraulic turbine generates pressure pulsation, and the vibration and output swing of a unit are caused when the condition is serious, so that the component damage of the unit is caused, and the safe, stable and economic operation of the unit is threatened. However, the traditional pressure pulsation monitoring system is complex in composition structure, local data cannot be transmitted to responsible personnel in real time, the running condition of a unit cannot be effectively monitored in time, the maintenance and protection cannot be carried out in real time, and the risk of accidents of equipment and personnel is high.
Therefore, a real-time reliable online monitoring system for pressure pulsation is needed in the art.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to overcome at least one of the above-mentioned drawbacks of the prior art, and to provide a real-time and reliable pressure pulsation on-line monitoring system.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
according to the utility model discloses an aspect provides a pressure pulsation on-line monitoring system for the on-line monitoring of hydraulic turbine runner pressure pulsation, the system includes:
the monitoring master control device is used for remotely monitoring the pressure pulsation of the flow channel of the water turbine;
the system comprises an on-site monitoring device, at least one on-site monitoring device and at least one pressure pulsation sensing instrument, wherein the on-site monitoring device is connected with a monitoring master control device through Ethernet in a data mode and comprises the on-site monitoring analyzer and the pressure pulsation sensing instrument, the pressure pulsation sensing instrument is installed at each runner of a water turbine and used for sensing and acquiring pressure pulsation signals of the runner of the water turbine, and the on-site monitoring analyzer is connected with the at least one pressure pulsation sensing instrument in a signal mode and used for monitoring the pressure pulsation of the runner of the water turbine in the on-site mode;
the on-line monitoring analyzer comprises a controller, a data collector, a power supply module, a display, a relay alarm output device, an analog quantity output device and a network communication device, wherein the data collector is connected with the pressure pulsation sensing instrument and used for collecting pressure pulsation signals obtained by the pressure pulsation sensing instrument, the power supply module is used for supplying power to electrical appliances, the controller is respectively connected with the data collector, the display, the relay alarm output device, the analog quantity output device and the network communication device through signals and used for processing the pressure pulsation signals collected by the data collector and outputting processing results, the display is used for displaying the processing results, the relay alarm output device is used for outputting acousto-optic alarm signals, the analog quantity output device is used for converting the processing results into analog quantities and outputting the analog quantities, and the network communicator is used for transmitting the processing result to the monitoring master control device.
According to an embodiment of the present invention, the controller includes an embedded ARM CPU.
According to the utility model discloses an embodiment, the total controlling means of monitoring includes state database server, state database server is used for receiving and storing the in situ monitoring device the network communication ware conveys the processing result.
According to the utility model discloses an embodiment, the total controlling means of monitoring includes upper processor, upper processor with state database server network links to each other, is used for following state database server acquires processing result and analysis obtain hydraulic turbine runner pressure pulsation's state data, and will state data transmits back state database server.
According to the utility model discloses an embodiment, monitoring total controlling means includes the printer, the printer with superior treater data links to each other for receive the state data that superior treater sent is exported with the paper form.
According to the utility model discloses an embodiment, monitoring total controlling device still includes the SMS alarm, the SMS alarm with state database server network links to each other for send measuring station alarm state and state data to mobile communication terminal with the SMS form.
According to the utility model discloses an embodiment, monitoring total controlling means includes web server, and the remote access user end passes through web server with state database server network links to each other for carry out remote access and diagnosis to the hydraulic turbine in situ.
According to an embodiment of the present invention, the web server has a remote analysis and diagnosis interface.
According to the utility model discloses an embodiment, the network communicator has RS485 communication interface and ethernet interface, relay alarm output ware has 32 way relay alarm output interfaces, and analog output ware has 32 way 4-20mA analog output interfaces, and data collection station has 32 way data acquisition interfaces.
According to the utility model discloses an embodiment, power module adopts two redundant power module.
According to the above technical scheme, the utility model discloses a pressure pulsation on-line monitoring system's advantage lies in with positive effect:
the utility model discloses in, the hydraulic power flow state signal of hydraulic turbine runner is gathered and handled on the spot to the on-the-spot monitoring device, the monitoring master control device that links to each other with it data carries out remote monitoring to the pressure pulsation of hydraulic turbine runner, the succinct and reliability of system component structure is higher, be convenient for maintain, monitoring data is more detailed, can carry out on-the-spot monitoring and remote monitoring simultaneously, and have higher real-time and stability, improve the quality and the efficiency of pressure pulsation monitoring work, very high economic nature has, very be fit for using widely in the industry.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an overall structure of an online pressure pulsation monitoring system according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
1. a site monitoring device; 11. an on-line monitoring analyzer; 12. a pressure pulse dynamic detector; 2. monitoring a master control device; 21. an upper processor; 22. a state database server; 23. a web server; 24. a printer; 25. a short message alarm.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the following description of various examples of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized, and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "top," "bottom," "front," "back," "side," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., as to the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures to fall within the scope of the invention.
Fig. 1 is a schematic view of an overall structure of an online pressure pulsation monitoring system according to an embodiment of the present invention.
As shown in fig. 1, the pressure pulsation on-line monitoring system of the embodiment includes a plurality of on-site monitoring devices 1 and a monitoring master control device 2, each on-site monitoring device includes an on-line monitoring analyzer 11 and a plurality of pressure pulsation sensing instruments 12 connected to the on-line monitoring analyzer 11, and the pressure pulsation sensing instruments are installed at each runner of the water turbine and are used for acquiring pressure pulsation signals of the runner of the water turbine; the on-line monitoring analyzer comprises a data collector, a power supply module, a display, a relay alarm output device, an analog output device (4-20mA) and a network communicator, wherein the power supply module supplies power to the data collector, the display, the relay alarm output device, the analog output device (4-20mA) and the network communicator, the data collected by the data collector and transmitted by the pressure pulsation sensing device is displayed by the display, a touch display screen is adopted in the embodiment, and the collected pressure information is uploaded to a monitoring master control device by the network communicator; the monitoring master control device of the embodiment comprises an upper processor 21, a state database server 22, a Web server 23, a printer 24 and an online pressure pulsation detection module arranged in the upper processor, wherein the upper processor is connected with an online monitoring analyzer Ethernet network, the upper processor also provides a display window for the online pressure pulsation detection module, and the Web server of the embodiment is provided with a remote diagnosis interface to realize remote monitoring analysis and diagnosis of field equipment.
In this embodiment, the online pressure pulsation monitoring system is used for online monitoring of pressure pulsation of a runner of a water turbine, and the system includes: the monitoring master control device is used for remotely monitoring the pressure pulsation of the flow channel of the water turbine; the system comprises a site monitoring device and a main monitoring control device, wherein at least one site monitoring device is arranged, the site monitoring device is in data connection with the main monitoring control device through an Ethernet, the site monitoring device comprises an online monitoring analyzer and at least one pressure pulsation sensing instrument, the pressure pulsation sensing instrument is arranged at each runner of the water turbine and used for sensing and acquiring pressure pulsation signals of the runner of the water turbine, and the online monitoring analyzer is in signal connection with the at least one pressure pulsation sensing instrument and used for in-situ monitoring the pressure pulsation of the runner of the water turbine; the on-line monitoring analyzer comprises a controller, a data collector, a power supply module, a display, a relay alarm follower, an analog quantity follower and a network communicator, wherein the data collector is connected with the pressure pulsation sensing instrument and used for collecting pressure pulsation signals obtained by the pressure pulsation sensing instrument, the power supply module is used for supplying power to an electric appliance, the electric appliance comprises the controller, the data collector, the display, the relay alarm follower, the analog quantity follower and the network communicator of the on-line monitoring analyzer, the controller is respectively connected with the data collector, the display, the relay alarm follower, the analog quantity follower and the network communicator in a signal mode and used for processing the pressure pulsation signals collected by the data collector and outputting processing results, the display is used for displaying the processing results, the relay alarm follower is used for outputting acousto-optic alarm signals, the analog quantity follower is used for converting the processing results into analog quantities and outputting the analog quantities, the network communicator is used for transmitting the processing result to the monitoring master control device.
In this embodiment, the pressure pulsation sensing device may be a pressure pulsation sensor, and the pressure pulsation sensing device has various standard electrical connectors such as an mPm interface, an M12 interface, a Packard interface, and a cable interface; and (3) output selection: 4-20mA in 2-wire system, 0-10V in 3-wire system, 0.5-4.5V in 3-wire system, etc.
In this embodiment, the controller includes an embedded ARM CPU.
In this embodiment, the monitoring master control device includes a status database server, and the status database server is configured to receive and store a processing result transmitted by the network communicator of the in-situ monitoring device.
In the embodiment, the monitoring master control device comprises an upper processor, wherein the upper processor is connected with the state database server through a network and is used for acquiring a processing result from the state database server, analyzing the processing result to obtain state data of the pressure pulsation of the runner of the water turbine, and transmitting the state data back to the state database server.
In this embodiment, the monitoring master control device includes a printer, and the printer is connected to the upper processor for receiving the status data sent by the upper processor and outputting the status data in a paper form.
In this embodiment, the monitoring master control device further includes a short message alarm 25, which is connected to the status database server network and is configured to send the measurement point alarm status and status data to the mobile communication terminal in a form of short message. The short message alarm is used for a general dual-frequency communication module for transmitting and receiving signals, and the module can transmit data of a measuring point alarm state and a pressure pulsation state concerned by a user to a mobile communication terminal, such as a mobile phone, in a short message mode, so that the function that the user can master the real-time running condition of a unit at any time when the user is not on site is realized.
In the embodiment, the monitoring master control device comprises a web server, and the remote access user side is connected with the state database server through the web server and is used for remotely accessing and diagnosing the local water turbine.
In this embodiment, the web server has a remote analytics diagnostic interface.
In this embodiment, the on-line monitoring analyzer includes an RS485 communication interface, 32 data acquisition interfaces, an ethernet interface, 32 relay alarm output interfaces, and 32 4-20mA analog output interfaces. The network communicator is provided with an RS485 communication interface and an Ethernet interface, the relay alarm output device is provided with 32 relay alarm output interfaces, the analog quantity output device is provided with 32 4-20mA analog quantity output interfaces, and the data acquisition device is provided with 32 data acquisition interfaces.
In this embodiment, the power supply module employs a dual redundant power supply module.
The utility model discloses in, the hydraulic power flow state signal of hydraulic turbine runner is gathered and handled on the spot to the on-the-spot monitoring device, the monitoring total control device that links to each other with it data carries out remote monitoring to the pressure pulsation of hydraulic turbine runner, keep watch on hydraulic power excitation factor, know the influence of hydraulic power excitation factor to runner stability, through the monitoring of the state signal of the pressure frequency change to the fluid, reflect the damage that overflows the part, the prediction overflows the safe state of part, provide the foundation for overhauing the decision-making, the succinct and reliability of system component structure is higher, be convenient for maintain, monitoring data is more detailed, can carry out on-the-spot monitoring and remote monitoring simultaneously, and have higher real-time and stability, improve the quality and the efficiency of pressure pulsation monitoring work, have very high economic nature, very be fit for using widely in.
It is to be understood by one of ordinary skill in the art that the specific structures and processes shown in the detailed description are exemplary only and not limiting. Moreover, a person skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions, or make other modifications, all of which fall within the scope of the present invention.
Claims (10)
1. An online pressure pulsation monitoring system, which is used for online monitoring of pressure pulsation of a runner of a water turbine, and comprises:
the monitoring master control device is used for remotely monitoring the pressure pulsation of the flow channel of the water turbine;
the system comprises an on-site monitoring device, at least one on-site monitoring device and at least one pressure pulsation sensing instrument, wherein the on-site monitoring device is connected with a monitoring master control device through Ethernet in a data mode and comprises the on-site monitoring analyzer and the pressure pulsation sensing instrument, the pressure pulsation sensing instrument is installed at each runner of a water turbine and used for sensing and acquiring pressure pulsation signals of the runner of the water turbine, and the on-site monitoring analyzer is connected with the at least one pressure pulsation sensing instrument in a signal mode and used for monitoring the pressure pulsation of the runner of the water turbine in the on-site mode;
the on-line monitoring analyzer comprises a controller, a data collector, a power supply module, a display, a relay alarm output device, an analog quantity output device and a network communication device, wherein the data collector is connected with the pressure pulsation sensing instrument and used for collecting pressure pulsation signals obtained by the pressure pulsation sensing instrument, the power supply module is used for supplying power to electrical appliances, the controller is respectively connected with the data collector, the display, the relay alarm output device, the analog quantity output device and the network communication device through signals and used for processing the pressure pulsation signals collected by the data collector and outputting processing results, the display is used for displaying the processing results, the relay alarm output device is used for outputting acousto-optic alarm signals, the analog quantity output device is used for converting the processing results into analog quantities and outputting the analog quantities, and the network communicator is used for transmitting the processing result to the monitoring master control device.
2. The online pressure pulsation monitoring system as claimed in claim 1, wherein said controller comprises an embedded ARM CPU.
3. The system for on-line monitoring pressure pulsation according to claim 1, wherein said monitoring master control device comprises a status database server for receiving and storing said processing results transmitted by said network communicator of said on-site monitoring device.
4. The system for on-line monitoring of pressure pulsation according to claim 3, wherein the monitoring master control device comprises an upper processor, the upper processor is connected with the state database server through a network, and is used for obtaining the processing result from the state database server, analyzing the processing result to obtain the state data of the pressure pulsation of the flow channel of the water turbine, and transmitting the state data back to the state database server.
5. The system for on-line monitoring of pressure pulsation according to claim 4, wherein the monitoring master control device comprises a printer, and the printer is in data connection with the upper processor and is used for receiving the status data sent by the upper processor and outputting the status data in a paper form.
6. The pressure pulsation on-line monitoring system according to claim 3, wherein the monitoring master control device further comprises a short message alarm, and the short message alarm is connected with the state database server network and used for sending the measuring point alarm state and the state data to the mobile communication terminal in a short message form.
7. The system for on-line monitoring of pressure pulsation according to claim 3, wherein the monitoring master control device comprises a web server, and a remote access user terminal is connected with the state database server network through the web server and is used for remote access and diagnosis of the local water turbine.
8. The on-line pressure pulsation monitoring system according to claim 7, wherein said web server has a remote analysis and diagnosis interface.
9. The system for on-line monitoring of pressure pulsation according to claim 1, wherein the network communicator is provided with an RS485 communication interface and an Ethernet interface, the relay alarm output device is provided with 32 relay alarm output interfaces, the analog quantity output device is provided with 32 4-20mA analog quantity output interfaces, and the data acquisition device is provided with 32 data acquisition interfaces.
10. The system for on-line monitoring of pressure pulsation according to any one of claims 1 to 9, wherein said power module employs a dual redundant power module.
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| CN201921785659.7U CN211291864U (en) | 2019-10-23 | 2019-10-23 | Pressure pulsation on-line monitoring system |
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| CN201921785659.7U CN211291864U (en) | 2019-10-23 | 2019-10-23 | Pressure pulsation on-line monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790398A (en) * | 2021-08-31 | 2021-12-14 | 安徽农业大学 | Intelligent hydraulic bidirectional pressure regulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790398A (en) * | 2021-08-31 | 2021-12-14 | 安徽农业大学 | Intelligent hydraulic bidirectional pressure regulating device |
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