CN214660774U - On-line monitoring device for technical water supply pump - Google Patents
On-line monitoring device for technical water supply pump Download PDFInfo
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- CN214660774U CN214660774U CN202120459913.5U CN202120459913U CN214660774U CN 214660774 U CN214660774 U CN 214660774U CN 202120459913 U CN202120459913 U CN 202120459913U CN 214660774 U CN214660774 U CN 214660774U
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- water supply
- supply pump
- technical water
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- monitoring device
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Abstract
The utility model discloses an online monitoring device for a technical water supply pump, which comprises a temperature probe for measuring the temperature of a technical water supply pump motor, a technical water supply pump cable box and a technical water supply pump bearing, and a vibration probe for measuring the vibration swing of the water supply pump motor and a pump shaft, wherein the temperature probe and the vibration probe are both connected with a PLC (programmable logic controller), and the PLC is connected with a control panel of a technical water supply control cabinet; the utility model discloses can monitor the technique working shaft in real time to send alarm signal and send the request of switching the pump to the control according to the condition.
Description
Technical Field
The utility model relates to a technical water supply pump technical field specifically indicates a technical water supply pump on-line monitoring device.
Background
In a hydroelectric power plant, the stable operation of technical water supply of a unit and technical water supply of a main transformer plays an important role in the safe and stable operation of the unit and the main transformer. However, in the actual operation of the pump, the problems of excessive vibration, excessive temperature and the like often occur, and at present, the hydraulic power plant mostly adopts modes of temperature measurement by a temperature measuring gun, observation of the runout of the pump and the like by a duty worker to check and process; in addition, when the pump needs to be changed to operate, a person on duty is still arranged to check whether the pump is reversed on site after the pump is changed, the traditional mode consumes a large amount of time and manpower and cannot monitor in real time, so that the stability and the reliability of technical water supply cannot be guaranteed, and the safe and stable operation of a unit and a main transformer is further influenced. In addition, in the future, large and medium-sized hydroelectric power plants develop towards the tendency of unattended operation and unattended operation, and the mode of artificially measuring the temperature and checking the vibration is low in efficiency and cannot realize automation and intellectualization.
Disclosure of Invention
An object of the utility model is to overcome the aforesaid not enough, provide a technique working shaft on-line monitoring device, can monitor technique working shaft in real time to send alarm signal and send the request of switching the pump to the control according to the condition.
The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a technology feed pump on-line monitoring device, it is including the temperature probe that is used for measuring technology feed pump motor, technology feed pump cable box and technology feed pump bearing temperature, including the pendulum probe that shakes that is used for measuring technology feed pump motor and pump shaft vibration throw, temperature probe and pendulum probe all are connected with the PLC controller, the PLC controller is connected with the control panel of technology water supply switch board.
Preferably, the PLC controller is also respectively connected with the monitoring system and the alarm.
Preferably, the temperature probe is installed on the bearing surfaces of a technical water supply pump motor, a technical water supply pump cable box and the technical water supply pump, the technical water supply pump motor is fixed on the side plate, the oscillating probe is fixed on the side plate through a mounting ring, and the mounting ring is sleeved on the periphery of the technical water supply pump motor.
Preferably, the mounting ring is provided with a threaded hole matched with the oscillating probe.
Preferably, the oscillation probe is arranged in the adjusting sleeve, and an external thread matched with the threaded hole is formed outside the adjusting sleeve.
The utility model has the advantages that:
(1) the utility model discloses a hydraulic power plant, technical water supply pump temperature is high, the vibration is big to be that unit technical water supply and main technical water supply system appear most easily, also is the biggest problem of defect rate, can realize the real-time supervision to technical water supply pump temperature and runout through this device, greatly increased two technical water supply system stability and reliability.
(2) Compared with the traditional mode of artificially measuring the temperature and manually observing the vibration condition of the pump on site, the device greatly liberates the manpower, saves the time, has stronger intelligence, higher automation degree and more obvious working efficiency.
(3) When the water supply pump is operated by a remote stopping technology and a switching technology, the phenomenon of pump reversal often occurs because a pump control valve is not tightly closed, particularly when the pump is slightly reversed, if the pump is not checked on site, the pump is not easy to be perceived, and the phenomenon of the pump can be found by measuring the vibration data of the pump shaft by the device.
(4) When the temperature and the vibration of the technical water supply pump reach or are higher than the fixed values, the device has the functions of sending out an alarm signal and sending out a request for applying for switching the pump, so that the running reliability of the two technical water supply systems is greatly improved, and the safe and stable running of the unit and the main transformer is ensured.
Drawings
FIG. 1 is a schematic view showing the structure of an on-line monitoring apparatus for a technical water supply pump;
FIG. 2 is a schematic side view of the water supply pump motor of the technique of FIG. 1 with a wobble probe mounted by a mounting ring;
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 2, the on-line monitoring device for the technical water supply pump comprises a temperature probe 4 for measuring the temperature of a motor 1 of the technical water supply pump, a cable box 2 of the technical water supply pump and a bearing 3 of the technical water supply pump, and a vibration probe 6 for measuring the vibration swing of the motor 1 of the technical water supply pump and a pump shaft 5, wherein the temperature probe 4 and the vibration probe 6 are both connected with a PLC controller 7, and the PLC controller 7 is connected with a control panel 8 of a technical water supply control cabinet.
Preferably, the PLC controller 7 is also connected to a monitoring system 9 and an alarm 10, respectively.
Preferably, the temperature probe 4 is installed on the surface of the technical water supply pump motor 1, the technical water supply pump cable box 2 and the technical water supply pump bearing 3, the technical water supply pump motor 1 is fixed on the side plate 12, the oscillating probe 6 is fixed on the side plate 12 through the mounting ring 11, and the mounting ring 11 is sleeved on the periphery of the technical water supply pump motor 1. After the design like this, can install a plurality of runout probes 6 through collar 11 to follow a plurality of angles and carry out the measurement of vibration throw to technical water supply pump motor 1 and pump shaft 5, generally only install a runout probe 6 in the past, but there is uncertainty in the direction of vibration throw, and the direction that probably installs a runout probe 6 can't the accurate measurement vibration throw, and this patent is a plurality of runout probes 6 of circumference array form installation through addding collar 11, can solve this problem well.
Preferably, the mounting ring 11 is provided with a threaded hole matched with the oscillation probe 6.
Preferably, the oscillation probe 6 is arranged in the adjusting sleeve 12, and an external thread matched with the threaded hole is formed outside the adjusting sleeve 12. With this design, the adjustment sleeve 12 can be adjusted in the threaded hole of the mounting ring 11 to change the distance between the oscillation probe 6 and the surface of the technical water supply pump motor 1 and the surface of the pump shaft 5.
The working principle of the embodiment is as follows:
in this embodiment, the 3 temperature probes 4 monitor and collect the temperatures of the technical water supply pump motor 1, the technical water supply pump cable box 2 and the technical water supply pump bearing 3 in real time, after calculation processing by the PLC controller 7, on one hand, a real-time value is displayed on the control panel 8 of the technical water supply control cabinet, and simultaneously, the real-time value is sent to the monitoring system 9, when the temperature value reaches or is higher than a set value, an alarm signal is sent by the alarm 10, a request for switching the technical water supply pump is sent out on the monitoring system 9, and the switching of the pump can be performed after the monitoring screen personnel click confirmation.
The technical water supply control cabinet comprises a technical water supply control cabinet, a plurality of vibration probes 6, a PLC (programmable logic controller) controller 7, a monitoring system 9, an alarm 10 and a control panel, wherein the technical water supply control cabinet comprises a control panel 8, a technical water supply pump motor 1, a pump shaft 5, a vibration swing detector, a vibration sensor and a vibration sensor, wherein the technical water supply pump motor 1 and the pump shaft 5 are monitored and collected in real time, real-time values are displayed on the control panel 8 of the technical water supply control cabinet after calculation processing of the PLC controller 7, and meanwhile, the real-time values are sent to the monitoring system 9; in addition, if the pump is reversely rotated in the process of stopping or switching the pump by the remote monitoring system 9, the alarm 10 sends out an alarm signal when the oscillation value reaches a set value through the detection of the oscillation value measuring value.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (5)
1. The utility model provides a technique working shaft on-line monitoring device which characterized in that: it is including temperature probe (4) that is used for measuring technology feed pump motor (1), technology feed pump cable box (2) and technology feed pump bearing (3) temperature, including pendulum probe (6) that shakes that are used for measuring technology feed pump motor (1) and pump shaft (5) vibration throw degree, temperature probe (4) and pendulum probe (6) all are connected with PLC controller (7), PLC controller (7) are connected with control panel (8) of technology water supply switch board.
2. The on-line monitoring device for the technical water supply pump according to claim 1, wherein: the PLC (7) is also respectively connected with a monitoring system (9) and an alarm (10).
3. The on-line monitoring device for the technical water supply pump according to claim 1, wherein: the temperature probe (4) is installed on the surface of a technical water supply pump motor (1), a technical water supply pump cable box (2) and a technical water supply pump bearing (3), the technical water supply pump motor (1) is fixed on a side plate (12), the oscillating probe (6) is fixed on the side plate (12) through a mounting ring (11), and the mounting ring (11) is sleeved on the periphery of the technical water supply pump motor (1).
4. The on-line monitoring device for the technical water supply pump according to claim 3, wherein: and the mounting ring (11) is provided with a threaded hole matched with the oscillating probe (6).
5. The on-line monitoring device for the technical water supply pump according to claim 4, wherein: the vibration probe (6) is arranged in the adjusting sleeve (13), and external threads matched with the threaded hole are formed in the outer portion of the adjusting sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120459913.5U CN214660774U (en) | 2021-03-03 | 2021-03-03 | On-line monitoring device for technical water supply pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120459913.5U CN214660774U (en) | 2021-03-03 | 2021-03-03 | On-line monitoring device for technical water supply pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214660774U true CN214660774U (en) | 2021-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120459913.5U Active CN214660774U (en) | 2021-03-03 | 2021-03-03 | On-line monitoring device for technical water supply pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214660774U (en) |
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2021
- 2021-03-03 CN CN202120459913.5U patent/CN214660774U/en active Active
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