Hydroelectric generator vibration early warning device and hydroelectric generator

Abstract

The utility model relates to the technical field of hydroelectric generators, and discloses a hydroelectric generator vibration early warning device and a hydroelectric generator, the hydroelectric generator vibration early warning device comprises a power generation assembly, a vibration detection assembly, a data processing assembly and an early warning assembly, the power generation assembly comprises a water wheel and a motor, and a main shaft of the water wheel is connected with a main shaft of the motor; a water inlet and a water outlet of the water wheel are respectively connected with a water inlet pipe and a tail pipe; the vibration detection assembly comprises a vibration sensor and a sensor protection box, the sensor protection box is connected to the motor, and the vibration sensor is installed in the sensor protection box to detect the vibration amplitude of the power generation assembly; the data processing assembly is electrically connected with the vibration detection assembly to receive detection data of the vibration detection assembly; the early warning assembly is electrically connected with the data processing assembly so as to give an early warning when the detected data is abnormal. In the scheme, the vibration detection assembly feeds back the vibration condition to the data processing assembly for analysis, and the early warning assembly reminds detection personnel to handle in time when the vibration condition is abnormal, so that normal operation of the hydroelectric generator is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic generators, in particular to a hydraulic generator vibration early warning device and a hydraulic generator. Background Art

[0002] Hydroelectric generators are an important part of hydroelectric power generation. Water flowing in high places such as rivers and lakes has potential energy. When it flows to lower places, it is converted into mechanical energy of the turbine through the turbine, and then drives the generator to generate electricity, converting the mechanical energy into electrical energy.

[0003] When a hydroelectric generator is working, vibrations may occur due to various reasons. These vibrations may be caused by the impact of water flow, or by the loosening or wear of components due to long-term operation. The amplitude of these vibrations may be very small at the beginning and will not affect the normal operation of the hydroelectric generator, but they will continue to intensify with the continuous operation of the hydroelectric generator, and eventually lead to the output failure of the hydroelectric generator. If it is not handled in time, it will have a great impact on the service life of the equipment, and sometimes even directly damage the equipment. Therefore, it is very important to predict and solve the fault of the hydroelectric generator in time. However, at this stage, there is no matching fault diagnosis equipment for the hydroelectric generators that are developing rapidly. When the hydroelectric generators are running, it is impossible to give a timely warning of the vibration faults of the hydroelectric generators, resulting in greater damage to the equipment when subsequent faults occur, and high maintenance costs. Utility Model Content

[0004] The main purpose of the utility model is to provide a hydraulic generator vibration early warning device, aiming to realize vibration early warning of the hydraulic generator, so as to detect the vibration anomaly of the hydraulic generator set in advance for easy maintenance and reduce the failure rate of the hydraulic power generation system.

[0005] In order to achieve the above-mentioned purpose, the hydraulic generator vibration early warning device proposed in the utility model comprises:

[0006] A power generation assembly, the power generation assembly comprising a water wheel and a motor, the main shaft of the water wheel is connected to the main shaft of the motor, and the water inlet and the water outlet of the water wheel are respectively connected to the water inlet pipe and the tail pipe;

[0007] A vibration detection component, the vibration detection component includes a vibration sensor and a sensor protection box, the sensor protection box is connected to the motor, and the vibration sensor is installed in the sensor protection box to detect the vibration amplitude of the power generation component;

[0008] a data processing component, the data processing component being electrically connected to the vibration detection component to receive and process detection data of the vibration detection component;

[0009] An early warning component is electrically connected to the data processing component and is used to issue an early warning when abnormalities occur in the detected data.

[0010] The vibration detection components include two, one of which is arranged on the side of the motor facing the water wheel, and the other is arranged on the back side of the motor relative to the water wheel.

[0011] The sensor protection box comprises a base and a protection cover, wherein the protection cover is connected to the base, a waterproof joint is provided on a side wall of the protection cover, and the vibration sensor is installed on the base.

[0012] Optionally, the vibration detection component also includes a first water speed detector, which is arranged at one end of the water inlet pipe close to the water wheel to detect the water speed at the water inlet of the hydroelectric generator.

[0013] Optionally, the vibration detection component also includes a second water speed detector, which is arranged at one end of the tail pipe close to the water wheel to detect the water speed at the water outlet of the hydroelectric generator.

[0014] Optionally, the data processing component includes a data processing module and a display screen, and the data processing module, the display screen and the vibration detection component are electrically connected.

[0015] Optionally, the data processing component further includes a data storage module, and the data storage module is used to store data of the data processing component.

[0016] Optionally, the early warning component includes a warning light, and the warning light is electrically connected to the data processing component.

[0017] Optionally, the early warning component further includes a warning horn, and the warning horn is electrically connected to the data processing component.

[0018] The utility model also provides a hydroelectric generator, the hydroelectric generator comprising a hydroelectric generator, the hydroelectric generator comprising:

[0019] A power generation assembly, the power generation assembly comprising a water wheel and a motor, the main shaft of the water wheel is connected to the main shaft of the motor, and the water inlet and the water outlet of the water wheel are respectively connected to the water inlet pipe and the tail pipe;

[0020] A vibration detection component, the vibration detection component includes a vibration sensor and a sensor protection box, the sensor protection box is connected to the motor, and the vibration sensor is installed in the sensor protection box to detect the vibration amplitude of the power generation component;

[0021] a data processing component, the data processing component being electrically connected to the vibration detection component to receive and process detection data of the vibration detection component;

[0022] An early warning component is electrically connected to the data processing component and is used to issue an early warning when abnormalities occur in the detected data.

[0023] In the technical solution of the utility model, a vibration warning device for a hydroelectric generator is proposed, including a vibration detection component, a data processing component and a warning component. The vibration generated by the hydroelectric generator during operation is detected by the vibration detection component and fed back to the data processing component, and the data processing component and the preset vibration data are analyzed. When the amplitude of the vibration of the detected hydroelectric generator is greater than the preset critical value, the warning component is used to warn the detection personnel, so as to further process the hydroelectric generator in time to ensure the normal operation of the hydroelectric generator. In addition, the vibration sensor is installed in the sensor protection box to reduce the influence of the external environment on the vibration sensor, so that the vibration sensor can have a relatively stable working environment and extend the service life of the vibration sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 A schematic structural diagram of an embodiment of a hydraulic generator vibration warning device provided by the utility model;

[0026] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the vibration warning device of the hydroelectric generator;

[0027] Figure 3 for Figure 1 Schematic diagram of the structure of the sensor protection box.

[0028] Description of Figure Numbers:

[0029]

[0030]

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Hydroelectric generators are an important part of hydroelectric power generation. Water flowing in high places such as rivers and lakes has potential energy. When it flows to lower places, it is converted into mechanical energy of the turbine through the turbine, and then drives the generator to generate electricity, converting the mechanical energy into electrical energy.

[0036] When a hydroelectric generator is working, vibrations may occur due to various reasons. These vibrations may be caused by the impact of water flow, or by the loosening or wear of components due to long-term operation. The amplitude of these vibrations may be very small at the beginning and will not affect the normal operation of the hydroelectric generator, but they will continue to intensify with the continuous operation of the hydroelectric generator, and eventually lead to the output failure of the hydroelectric generator. If it is not handled in time, it will have a great impact on the service life of the equipment, and sometimes even directly damage the equipment. Therefore, it is very important to predict and solve the fault of the hydroelectric generator in time. However, at this stage, there is no matching fault diagnosis equipment for the hydroelectric generators that are developing rapidly. When the hydroelectric generators are running, it is impossible to give a timely warning of the vibration faults of the hydroelectric generators, resulting in greater damage to the equipment when subsequent faults occur, and high maintenance costs.

[0037] To solve the above problems, the utility model proposes a hydraulic generator vibration warning device, which aims to achieve vibration warning for the hydraulic generator set, so as to ensure that the vibration anomaly of the hydraulic generator set can be detected in advance for maintenance and reduce the swelling rate of the hydraulic power generation system. Figures 1 to 3 The present invention is a schematic structural diagram of an embodiment of a hydraulic generator vibration warning device provided by the present invention.

[0038] Please refer to Figure 1 The utility model proposes a vibration warning device 1000 for a hydroelectric generator, comprising a power generation component 1, a vibration detection component 2, a data processing component and a warning component, wherein the power generation component 1 comprises a water wheel 11 and a motor 12, wherein the main shaft of the water wheel 11 is connected to the main shaft of the motor 12, and the water inlet and the water outlet of the water wheel 11 are respectively connected to the water inlet pipe 111 and the tail pipe 112; the vibration detection component 2 comprises a vibration sensor 21 and a sensor protection box 21, wherein the sensor protection box 21 is connected to the motor 12, and the vibration sensor 21 is installed in the sensor protection box 21 to detect the vibration amplitude of the power generation component 1; the data processing component is electrically connected to the vibration detection component 2 to receive and process the detection data of the vibration detection component 2; the warning component is electrically connected to the data processing component to issue a warning when the detection data is abnormal.

[0039] In the technical solution of the utility model, the vibration condition generated by the hydroelectric generator during operation is detected by the vibration detection component 2 and fed back to the data processing component, and the data processing component and the preset vibration data are analyzed. When the amplitude of the vibration of the detected hydroelectric generator is greater than the preset critical value, the early warning component is used to warn the detection personnel, so as to further process the hydroelectric generator in time to ensure the normal operation of the hydroelectric generator. In addition, the vibration sensor 21 is installed in the sensor protection box 22 to reduce the influence of the external environment on the vibration sensor 21, so that the vibration sensor 21 can have a relatively stable working environment and extend the service life of the vibration sensor 21.

[0040] In order to further detect the vibration position of the motor 12 and the water wheel 11, the vibration detection components 2 include two, one of which is arranged on the side of the motor 12 facing the water wheel 11, and the other is arranged on the back side of the motor 12 relative to the water wheel 11. Figure 1 and Figure 2When the vibration conditions of the water wheel 11 and the motor 12 are actually detected, when the main shafts of the water wheel 11 and the motor 12 are loose, or when the connection parts of the main shafts of the two are loose, the vibration of the hydroelectric generator will be caused. Therefore, the vibration detection components 2 can be respectively set at both ends of the motor 12 to detect the vibration conditions of the hydroelectric generator. This can not only improve the reliability of vibration detection, but also determine which part has an abnormality by detecting the amplitude of the vibration, which is convenient for maintenance personnel to troubleshoot.

[0041] In an optional embodiment, in order to protect the vibration sensor 21, the sensor protection box 22 includes a base 221 and a protection cover 222, the protection cover 222 is connected to the base 221, the side wall of the protection cover 222 is provided with a waterproof joint 223, and the vibration sensor 21 is installed on the base 221. Please refer to Figure 3 The protective cover 222 is connected to one side of the base 221, and the vibration sensor 21 is connected to the base 221. The protective cover 222 covers the vibration sensor 21 on one side of the base 221 to protect the vibration sensor 21. Optionally, a waterproof joint 221 can be opened on the side wall or top wall of the protective cover 222. On the one hand, it can facilitate the wiring of the vibration sensor 21, and on the other hand, it can prevent external water vapor from entering the protective cover 222 to affect the normal operation of the internal vibration sensor 21. The base 221 can be connected to the motor 12 by bonding or screwing, etc., which can be selected according to the actual use environment. It only needs to ensure that the connection is stable, and no specific limitation is made here.

[0042] In an optional embodiment, in order to detect the cause of the vibration of the hydroelectric generator caused by the fluid, the vibration detection component 2 also includes a first water speed detector, which is arranged at one end of the water inlet pipe 111 close to the water wheel 11 to detect the water speed at the water inlet of the hydroelectric generator. When the hydroelectric generator is rotated by the thrust of the water flow, when the water flow at the water inlet is in a turbulent or rapid state, the water wheel 11 of the hydroelectric generator is impacted by the water flow and vibrates. In order to detect whether the impact of the water flow impact on the hydroelectric generator will affect the normal operation of the hydroelectric generator, the first water speed detector can be set at the water inlet of the hydroelectric generator to detect the water speed out of the water inlet, and then the impact force on the hydroelectric generator can be analyzed and calculated by the data processing component to measure whether the water speed out of the water inlet is too fast and will affect the normal operation of the hydroelectric generator, and then timely remind the maintenance personnel to further check the water inlet pipe 111 of the hydroelectric generator to see whether there is a problem inside the water inlet pipe 111 that causes the water flow in the water inlet pipe 111 to generate turbulence, so as to ensure the normal operation of the hydroelectric generator.

[0043] Furthermore, in order to detect the influence of the water flow at the tail pipe 112 on the vibration of the hydroelectric generator, the vibration detection component 2 also includes a second water speed detector, which is arranged at one end of the tail pipe 112 close to the water wheel 11 to detect the water speed at the water outlet of the hydroelectric generator. When water flows through the inlet pipe to push the water wheel 11 of the hydroelectric generator to be discharged from the tail pipe 112, when the tail pipe 112 is impacted by the water flow or eroded by water, the structure of the tail pipe 112 is corroded or otherwise damaged, resulting in changes in the structure of the tail pipe 112. When the water flows through the tail pipe 112, the water flow is blocked and becomes turbulent when passing through the defective part, and then the tail pipe 112 is impacted by the abnormal water flow at various places and transmitted to the rotating part of the hydroelectric generator, which is easy to cause abnormal vibration of the hydroelectric generator. Therefore, in order to timely discover the abnormal vibration at the tail pipe 112 and avoid such abnormal vibration from continuing to ferment and eventually affecting the normal operation of the hydroelectric generator, a second water speed detector can be set at the tail pipe 112 to detect the water speed at the tail pipe 112, and then the peak value of the water flow at the tail pipe 112 is detected, and the influence of the peak value of the water flow impact force at the tail pipe 112 on the hydroelectric generator is calculated, so that maintenance personnel can repair the tail pipe 112 in time.

[0044] In an optional embodiment, in order to facilitate maintenance personnel to understand the detection data of the vibration detection component, the data processing component includes a data processing module and a display screen, and the data processing module, the display screen and the vibration detection component 2 are electrically connected. The vibration detection component 2 transmits the detected data to the data processing module for analysis and processing, and displays it more intuitively through the display screen, so that maintenance personnel can view it to judge the vibration of the hydraulic generator, understand whether the vibration of the hydraulic generator is normal or abnormal, and take corresponding countermeasures.

[0045] In an optional embodiment, in order to store the vibration data of the hydroelectric generator, the data processing component includes a data storage module, and the data storage module is used to store the data of the data processing component. When processing the vibration data of the hydroelectric generator, the data storage module can be used to collect and process the data of the vibration conditions of each component of the hydroelectric generator in each time period, and the corresponding data processing module can be used to compare and analyze these data, so as to calculate the interval size of the amplitude of each component of the hydroelectric generator in normal operation and in abnormal vibration state, so as to more accurately judge whether each component of the hydroelectric generator is in an abnormal state through the detected vibration data, improve the accuracy of maintenance warning, reduce the maintenance workload of maintenance personnel, and ensure the normal operation of the hydroelectric generator.

[0046] In an optional embodiment, in order to warn the maintenance personnel when the hydroelectric generator is abnormal, the early warning component includes a warning light, and the warning light is electrically connected to the data processing component. Optionally, by setting the warning light to timely remind the maintenance personnel, it is convenient for the maintenance personnel to deal with the abnormal state in time, avoid eliminating the potential hidden dangers before the hydroelectric generator fails, so as to avoid the maintenance costs and maintenance time costs caused by overhauling the hydroelectric generator after a larger failure occurs. Optionally, the warning light can be set near the data processing component so that the maintenance personnel can more easily notice the warning light, and then find the abnormal working state of the hydroelectric generator in the first time. The warning light can be set in two states. For example, when the hydroelectric generator is in a normal state, the warning light is green or off. When the hydroelectric generator is abnormal, the warning light is red or flashing red, so that the maintenance personnel can find and deal with it in time, reduce the operation time of the hydroelectric generator in abnormal state, thereby reducing the damage of abnormal vibration to the hydroelectric generator and extending the service life of the hydroelectric generator set.

[0047] Optionally, in order to further improve the warning effect of the hydraulic generator vibration warning device 1000, the warning component also includes a warning speaker, and the warning speaker is electrically connected to the data processing component. In order to prevent the maintenance personnel from being not near the warning light and unable to observe the abnormal changes of the warning light in time, a warning speaker can be set to remind the maintenance personnel of the abnormal state of the hydraulic generator through a warning sound, so as to ensure that the maintenance personnel can deal with the abnormal vibration of the hydraulic generator in the first time and ensure the normal operation of the hydraulic generator.

[0048] The utility model also proposes a hydroelectric generator, which includes a hydroelectric generator vibration warning device 1000. The specific structure of the hydroelectric generator vibration warning device 1000 refers to the above embodiment. Since the hydroelectric generator adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0049] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hydraulic generator vibration warning device, characterized in that: include: A power generation assembly, the power generation assembly comprising a water wheel and a motor, the main shaft of the water wheel is connected to the main shaft of the motor, and the water inlet and the water outlet of the water wheel are respectively connected to the water inlet pipe and the tail pipe; A vibration detection component, the vibration detection component includes a vibration sensor and a sensor protection box, the sensor protection box is connected to the motor, and the vibration sensor is installed in the sensor protection box to detect the vibration amplitude of the power generation component; a data processing component, the data processing component being electrically connected to the vibration detection component to receive and process detection data of the vibration detection component; An early warning component is electrically connected to the data processing component and is used to issue an early warning when abnormalities occur in the detected data.

2. The hydraulic generator vibration warning device according to claim 1, characterized in that: The vibration detection components include two, one of which is arranged on the side of the motor facing the water wheel, and the other is arranged on the back side of the motor relative to the water wheel.

3. The hydraulic generator vibration warning device according to claim 2, characterized in that: The sensor protection box comprises a base and a protection cover, wherein the protection cover is connected to the base, a waterproof joint is provided on a side wall of the protection cover, and the vibration sensor is installed on the base.

4. The hydraulic generator vibration warning device according to any one of claims 2 to 3, characterized in that: The vibration detection component also includes a first water speed detector, which is arranged at one end of the water inlet pipe close to the water wheel and is used to detect the water speed at the water inlet of the hydroelectric generator.

5. The hydraulic generator vibration warning device according to claim 4, characterized in that: The vibration detection assembly also includes a second water speed detector, which is arranged at one end of the tail pipe close to the water wheel and is used to detect the water speed at the water outlet of the hydroelectric generator.

6. The hydraulic generator vibration warning device according to claim 5, characterized in that: The data processing component comprises a data processing module and a display screen, and the data processing module, the display screen and the vibration detection component are electrically connected.

7. The hydraulic generator vibration early warning device as claimed in claim 6, characterized in that: The data processing component further comprises a data storage module, and the data storage module is used to store the data of the data processing component.

8. The hydraulic generator vibration warning device according to claim 7, characterized in that: The early warning component includes a warning light, and the warning light is electrically connected to the data processing component.

9. The hydraulic generator vibration warning device according to claim 8, characterized in that: The early warning component also includes a warning speaker, and the warning speaker is electrically connected to the data processing component.

10. A hydroelectric generator, characterized in that: It comprises a hydraulic generator vibration early warning device as claimed in any one of claims 1 to 9.

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