Wind power lubrication system detection device

Abstract

The utility model relates to a wind power lubrication system detection device. The wind power lubrication system detection device comprises a data acquisition module, a controller and a state display module, the data acquisition module is connected with the main shaft oil pump module to acquire first operation data, and is connected with the generator oil pump module to acquire second operation data; the input end of the controller is connected with the data acquisition module and used for receiving operation data and outputting a detection signal, and the state display module is connected with the output end of the controller and controls the indicator light to be lightened according to the detection signal; according to the utility model, the working state of the oil pump of the fan system can be detected on line in real time, thereby keeping the continuous normal operation of the lubricating system and avoiding the failure of each bearing caused by poor lubrication; meanwhile, state display is output in time, overhaul and maintenance are facilitated, fault existence time is shortened, shutdown waiting time is further shortened, production efficiency is improved, compatibility is high, and long-term and stable operation of a fan system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation fan lubrication system, in particular to a wind power generation lubrication system detection device. Background Art

[0002] The fan lubrication system is an important part of the fan system, among which the main shaft lubrication oil pump and the generator lubrication oil pump are key components of the fan lubrication system. Their working status is related to whether the bearings can operate normally. After the lubrication oil pump fails, lubricating grease cannot be added and the bearings cannot be effectively lubricated. Long-term lack of lubrication will cause bearing damage, requiring shutdown and possible repair or replacement costs, affecting the normal operation of the fan system. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the technical difficulty of the lack of real-time fault detection of the lubrication system in the wind turbine system in the prior art, and to provide a wind power lubrication system detection device, which can promptly alarm when the main shaft oil pump and the generator oil pump are blocked, thereby ensuring effective lubrication of the bearings.

[0004] In order to solve the above technical problems, the utility model provides a wind power lubrication system detection device, which includes:

[0005] A data acquisition module, the data acquisition module comprising a first acquisition component and a second acquisition component, the first acquisition component is connected to the spindle oil pump module to collect first operating data, and the second acquisition component is connected to the generator oil pump module to collect second operating data;

[0006] A controller, wherein an input end of the controller is connected to the data acquisition module for receiving the first operation data and the second operation data and outputting a detection signal;

[0007] A status display module, the status display module includes a first indicator light and a second indicator light, the status display module is connected to the output end of the controller, and controls the first indicator light and the second indicator light to light up selectively according to the detection signal.

[0008] In one embodiment of the present invention, the first acquisition component includes a first control signal acquisition end, one end of the first control signal acquisition end is connected to the signal line of the spindle oil pump module, and the other end thereof is connected to the first pin of the controller.

[0009] In one embodiment of the utility model, the first operating data includes a spindle oil pump level signal, and the second operating data includes a generator oil pump level signal; the spindle oil pump level signal and the generator oil pump level signal are respectively output to the second pin and the third pin of the controller, and the second pin and the third pin are each provided with a control switch.

[0010] In one embodiment of the utility model, the first operating data also includes a spindle oil pump current signal; the first acquisition component includes a first current sensing switch, one end of the first current sensing switch is connected to the ground wire of the spindle oil pump module, and the other end of the first current sensing switch is connected to the fourth pin of the controller.

[0011] In one embodiment of the present invention, the first current sensing switch is configured as a through-hole current sensing switch, and the ground wire of the spindle oil pump module is wound twice in the through-hole of the first current sensing switch.

[0012] In one embodiment of the present invention, the threshold current of the first current sensing switch is 0.4A, and one end of the first current sensing switch connected to the controller is configured to output a high level signal when the induced current value obtained by the first current sensing switch exceeds the threshold current.

[0013] In one embodiment of the utility model, the second operating data also includes a generator oil pump current signal; the second acquisition component includes a second current sensing switch, one end of the second current sensing switch is connected to the ground wire of the generator oil pump module, and the other end of the second current sensing switch is connected to the fifth pin of the controller.

[0014] In one embodiment of the utility model, the second current sensing switch is configured as a through-hole current sensing switch, the ground wire of the generator oil pump module is wound twice in the through-hole of the second current sensing switch, and the threshold current of the second current sensing switch is 0.4A.

[0015] In one embodiment of the present invention, a reset module is further included, and when the reset module is triggered, the detection signal output by the controller is reset.

[0016] In one embodiment of the utility model, a power supply module is further included, and the power supply module includes a power supply wiring, one end of the power supply wiring is connected to the spindle oil pump module, and the other end thereof is connected to the power supply pin of the controller.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The wind power lubrication system detection device described in the utility model can detect the working status of the oil pump of the fan system online in real time, thereby maintaining the continuous normal operation of the lubrication system and avoiding failure of each bearing due to poor lubrication;

[0019] The utility model outputs the status display in time after the fault is detected, which is convenient for inspection and maintenance, shortens the existence time of the fault, thereby reducing the downtime waiting time and improving production efficiency;

[0020] The utility model adds an independent detection device on the basis of the existing fan system, which has simple layout, low cost and strong compatibility, ensures the long-term and stable operation of the fan system, reduces maintenance costs, and greatly improves the fan utilization rate and power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0022] Figure 1 This is a topological schematic diagram of a wind power lubrication system detection device in a preferred embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of a data acquisition module in a preferred embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of a controller and a status display module in a preferred embodiment of the utility model.

[0025] Description of the accompanying drawings in the specification: 1. Data acquisition module; 11. First acquisition component; 12. Second acquisition component. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Example

[0028] Reference Figure 1 to Figure 3 As shown, the utility model provides a wind power lubrication system detection device, which includes a data acquisition module 1, a controller 3A1, a status display module and a reset module; the utility model adds a lubrication system status detection on the basis of the existing wind turbine system U1 through line connection, referring to Figure 1 As shown, the data acquisition module 1 is used to collect the unit operation data, and the controller 3A1 is used to determine whether the operation status of the main shaft oil pump and the generator oil pump is normal according to the collected data, and the output result is displayed by the status display module. When the main shaft oil pump and the generator oil pump distributor are blocked, an alarm is issued in time to achieve continuous lubrication of the bearings.

[0029] Specifically, refer to Figure 2The figure shows the connection relationship between the data acquisition module 1 and the existing fan system U1 in the preferred embodiment of the utility model. The data acquisition module 1 includes a first acquisition component 11. The first acquisition component 11 is connected to the spindle oil pump module to collect first operation data. The first operation data includes a plurality of level signals, which are collected as high level or low level according to the operation state of the spindle oil pump. The first operation data includes the main control signal of the spindle oil pump, the spindle oil pump liquid level signal and the spindle oil pump current signal; correspondingly, the first acquisition component 11 includes a first control signal acquisition terminal, a first liquid level signal acquisition terminal and a first current sensing switch 1P1.

[0030] Furthermore, one end of the first control signal acquisition end is connected to the signal line of the spindle oil pump module, and the other end thereof is connected to the first pin DI1 of the controller 3A1; the signal line of the spindle oil pump is used to transmit oil pressure information to the control unit to ensure operation safety and stability; when the signal line works normally, the main control signal is transmitted normally, and after the first control signal acquisition end acquires the main control signal, the first pin DI1 receives it and is judged as a high level by the controller 3A1; when the main control signal is sent abnormally, the first pin DI1 receives a low level signal.

[0031] Furthermore, one end of the first liquid level signal acquisition end is located in the oil storage box of the spindle oil pump, and the other end thereof is connected to the second pin DI2 of the controller 3A1; the second pin DI2 is configured to receive a low level when the liquid level in the oil storage box of the spindle oil pump is normal, and to receive a high level when the liquid level is abnormal.

[0032] Furthermore, one end of the first current sensing switch 1P1 is connected to the ground wire of the spindle oil pump module, and the ground wire serves as the power line of the oil pump motor to convert the current into power so that the oil pump can work; the other end of the first current sensing switch 1P1 is connected to the fourth pin DI4 of the controller 3A1; when the operating current of the spindle oil pump is abnormal, the fourth pin DI4 is at a low level; when the operating current of the spindle oil pump is normal, the fourth pin DI4 is at a high level.

[0033] Next, in a preferred embodiment of the utility model, the first current sensing switch 1P1 is configured as a perforated current sensing switch, and the ground wire of the spindle oil pump module is wound twice in the perforation of the first current sensing switch 1P1. According to the law of electromagnetic induction, the induced current value collected by the first current sensing switch 1P1 is twice the current of the spindle oil pump; preferably, the operating voltage of the spindle oil pump is 230V AC, the rated current is 0.5A, and the peak current is less than 3A; when the current value of the spindle oil pump is small during operation, the perforated two circles can amplify the collected data Improve detection accuracy and avoid errors; in a preferred embodiment of the utility model, it also includes a first relay for data acquisition, the threshold current of the first current sensing switch 1P1 is 0.4A, when the induced current value obtained by the first current sensing switch 1P1 exceeds the threshold current, it is considered that the power obtained by the current conversion can enable the normal operation of the spindle oil pump, and the fourth pin DI4 outputs a high-level signal; on the contrary, the collected induced current value is less than or equal to 0.4A, it is determined that the spindle oil pump current is too low and the operation is abnormal, and the fourth pin DI4 outputs a low-level signal.

[0034] Reference Figure 2 As shown, the data acquisition module 1 also includes a second acquisition component 12, and the second acquisition component 12 is connected to the generator oil pump module to collect second operation data, and the second operation data includes a plurality of level signals, which are collected as high level or low level according to the operation state of the generator oil pump. Specifically, the second operation data includes the generator oil pump liquid level signal and the generator oil pump current signal, and correspondingly, the second acquisition component 12 includes a second liquid level signal acquisition terminal and a second current sensing switch 1P2.

[0035] Furthermore, one end of the second liquid level signal acquisition terminal is located in the oil storage box of the generator oil pump, and the other end thereof is connected to the third pin DI3 of the controller 3A1; the third pin DI3 is configured to be judged as a low level when the liquid level in the generator oil pump oil storage box is normal, and the third pin DI3 is judged as a high level when the liquid level is abnormal. In some embodiments, the second pin DI2 is set to control the on-off of the control switch K1, and the third pin DI3 is set to control the on-off of the control switch K2.

[0036] Furthermore, one end of the second current sensing switch 1P2 is connected to the ground wire of the generator oil pump module, and the other end of the second current sensing switch 1P2 is connected to the fifth pin DI5 of the controller 3A1; the second current sensing switch 1P2 is configured as a perforated current sensing switch, and the ground wire of the generator oil pump module is wound twice in the perforation of the second current sensing switch 1P2. According to the law of electromagnetic induction, the induced current value collected by the second current sensing switch 1P2 is twice the current of the generator oil pump; preferably, the operating voltage of the generator oil pump is 24V DC, its rated current is 1A, and the peak current is less than 3.8A; the generator oil pump is amplified during collection. The operating current of the motor oil pump avoids detection errors, ensuring that the first operating data range detected when the generator oil pump is operating normally is reasonable and effective; in a preferred embodiment of the utility model, a second relay is also included for data acquisition, and the threshold current of the second current sensing switch 1P2 is 0.4A. When the induced current value obtained by the second current sensing switch 1P2 exceeds the threshold current, it is considered that the power converted from the current can enable the normal operation of the generator oil pump, and the fifth pin DI5 receives a high-level signal; otherwise, the collected induced current value is less than or equal to 0.4A, and it is determined that the generator oil pump current is too low and the operation is abnormal, and the fifth pin DI5 receives a low-level signal.

[0037] Specifically, refer to Figure 3 As shown, the first pin DI1, the second pin DI2, the third pin DI3, the fourth pin DI4 and the fifth pin DI5 are all located at the input end of the controller 3A1; the input end of the controller 3A1 is connected to the data acquisition module 1, and each pin receives a high level or a low level according to the first operation data and the second operation data. The output end of the controller 3A1 includes a first output pin DO1 and a second output pin DO2, the first output pin DO1 outputs a detection signal to the spindle oil pump module, and when the controller 3A1 determines that the spindle oil pump is faulty, the first output pin DO1 outputs a high level to trigger the spindle oil pump alarm signal; when the controller 3A1 determines that the spindle oil pump is not faulty, the first output pin DO1 outputs a low level and does not trigger a fault signal; the second output pin DO2 outputs a detection signal to the generator oil pump module, and when the controller 3A1 determines that the generator oil pump is faulty, the second output pin DO2 outputs a high level to trigger the generator oil pump alarm signal; when the controller 3A1 determines that the generator oil pump is not faulty, the second output pin DO2 outputs a low level and does not trigger a fault signal.

[0038] Continue, refer to Figure 3As shown, the controller 3A1 also includes a third output pin DO3 and a fourth output pin DO4, and the wind power lubrication system detection device also includes a status display module, and the third output pin DO3 and the fourth output pin DO4 are connected to the status display module to instruct the staff to perform maintenance and troubleshooting. The status display module includes a first indicator light H1 and a second indicator light H2, and the first indicator light H1 and the second indicator light H2 are selected to light up. In this embodiment, the first indicator light H1 is set to a green lamp bead, and when the first indicator light H1 is lit, it indicates that the lubrication system is operating normally; the second indicator light H2 is set to a red lamp bead, and when the second indicator light H2 is lit, it indicates that the lubrication system is operating abnormally.

[0039] Next, the first indicator light H1 is connected to the third output pin DO3, and the second indicator light H2 is connected to the fourth output pin DO4; when the third output pin DO3 outputs a high level, the fourth output pin DO4 outputs a low level, the first indicator light H1 is turned on and the second indicator light H2 is turned off; when the third output pin DO3 outputs a low level, the fourth output pin DO4 outputs a high level, the second indicator light H2 is turned on and the first indicator light H1 is turned off.

[0040] Specifically, the wind power lubrication system detection device also includes a reset module and a power supply module; when the reset module is triggered, the detection signal output by the controller 3A1 is reset and is back in the detection state; the power supply module includes a power supply connection, one end of the power supply connection is connected to the spindle oil pump module, and the other end is connected to the power supply pin of the controller 3A1. The wind power lubrication system detection device of the utility model can be modified on the basis of the existing fan system U1, with low additional cost. Compared with the detection system in the prior art, it is more compatible with the fan system U1, and has the advantages of small size, simple operation, high real-time performance, and high practical value.

[0041] The working principle of the wind power lubrication system detection device described in the utility model is as follows:

[0042] On the one hand, when the spindle oil pump module has no faults, the main control signal is sent to make the first pin DI1 receive a high-level signal; the liquid level of the oil storage box is normal, so that the second pin DI2 receives a low-level signal; the collected induced current value is normal, so that the fourth pin DI4 receives a high-level signal; all three receive the corresponding signals for more than 10s, the controller 3A1 determines that the spindle oil pump module has no faults, the first output pin DO1 outputs a low level, no fault signal triggers an alarm, and the green first indicator light H1 lights up.

[0043] Next, the main control signal is sent out normally, so that the first pin DI1 receives a high-level signal; on the basis of the first pin DI1 receiving a high-level signal, the second pin DI2 receives a high-level signal, or the fourth pin DI4 receives a low-level signal, that is, when the signal of any pin of the second pin DI2 and the fourth pin DI4 is different from the aforementioned fault-free situation, it is determined that the spindle oil pump module has a fault, and the first output pin DO1 outputs a high level, triggering an alarm signal; the second indicator light H2 is on and the first indicator light H1 is off, indicating a lubrication system fault, and the maintenance personnel are informed through the SCADA system as soon as possible. After receiving the message, the maintenance personnel check the lubrication system as soon as possible, find the cause of the fault and deal with it, and after troubleshooting, press and hold the reset button of the reset module for 2s to restore to the above-mentioned fault-free state of the spindle oil pump module, and continue online detection.

[0044] Secondly, if the liquid level in the generator oil pump oil storage box is normal, the third pin DI3 will receive a low-level signal; if the collected induced current value is normal, the fifth pin DI5 will receive a high-level signal; within 24 hours of online detection, if the third pin DI3 receives a low level and the fifth pin DI5 receives a high level for a duration of more than 10s and at least once, it is determined that the generator oil pump has no fault, the second output pin DO2 outputs a low level, no fault signal triggers an alarm, and the green first indicator light H1 lights up.

[0045] Next, within 24 consecutive hours of online detection, if the generator oil pump fault-free judgment condition cannot be met for at least once and continuously for 10 seconds, it is determined that the generator oil pump module has a fault. At this time, the second output pin DO2 outputs a high level, triggering an alarm signal; the second indicator light H2 lights up and the first indicator light H1 goes out, indicating a lubrication system fault so that the staff can inspect and repair it. After troubleshooting, press and hold the reset button of the reset module for 2 seconds to restore to the above-mentioned generator oil pump module fault-free state, and continue online detection.

[0046] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A wind power lubrication system detection device, characterized in that: include, A data acquisition module, the data acquisition module comprising a first acquisition component and a second acquisition component, the first acquisition component is connected to the spindle oil pump module to collect first operating data, and the second acquisition component is connected to the generator oil pump module to collect second operating data; A controller, wherein an input end of the controller is connected to the data acquisition module for receiving the first operation data and the second operation data and outputting a detection signal; A status display module, the status display module includes a first indicator light and a second indicator light, the status display module is connected to the output end of the controller, and controls the first indicator light and the second indicator light to light up selectively according to the detection signal.

2. The wind power lubrication system detection device according to claim 1 is characterized in that: The first acquisition component includes a first control signal acquisition end, one end of which is connected to the signal line of the spindle oil pump module, and the other end of which is connected to the first pin of the controller.

3. The wind power lubrication system detection device according to claim 1 is characterized in that: The first operating data includes a spindle oil pump level signal, and the second operating data includes a generator oil pump level signal; the spindle oil pump level signal and the generator oil pump level signal are respectively output to the second pin and the third pin of the controller, and the second pin and the third pin are each provided with a control switch.

4. The wind power lubrication system detection device according to claim 1 is characterized in that: The first operating data also includes a spindle oil pump current signal; the first acquisition component includes a first current sensing switch, one end of the first current sensing switch is connected to the ground wire of the spindle oil pump module, and the other end of the first current sensing switch is connected to the fourth pin of the controller.

5. The wind power lubrication system detection device according to claim 4 is characterized in that: The first current sensing switch is configured as a through-hole current sensing switch, and the ground wire of the spindle oil pump module is wound twice in the through-hole of the first current sensing switch.

6. The wind power lubrication system detection device according to claim 5 is characterized in that: The threshold current of the first current sensing switch is 0.4A, and one end of the first current sensing switch connected to the controller is configured to output a high level signal when the sensed current value obtained by the first current sensing switch exceeds the threshold current.

7. The wind power lubrication system detection device according to claim 1 is characterized in that: The second operating data also includes a generator oil pump current signal; the second acquisition component includes a second current sensing switch, one end of the second current sensing switch is connected to the ground wire of the generator oil pump module, and the other end of the second current sensing switch is connected to the fifth pin of the controller.

8. The wind power lubrication system detection device according to claim 7 is characterized in that: The second current sensing switch is configured as a through-hole current sensing switch, the ground wire of the generator oil pump module is wound twice in the through-hole of the second current sensing switch, and the threshold current of the second current sensing switch is 0.4A.

9. The wind power lubrication system detection device according to claim 1, characterized in that: It also includes a reset module, and when the reset module is triggered, the detection signal output by the controller is reset.

10. The wind power lubrication system detection device according to claim 1, characterized in that: It also includes a power supply module, which includes a power supply wiring, one end of which is connected to the spindle oil pump module, and the other end of which is connected to the power supply pin of the controller.

Images