Water turbine temperature monitoring device

Abstract

The utility model relates to the technical field of monitoring devices, and discloses a water turbine temperature monitoring device which is characterized in that a generator is arranged at the top of a water turbine; the control box is arranged on the generator; the switch base is arranged on the front surface of the control box; a protection assembly is arranged on the control box, and the protection assembly comprises a protection shell arranged on the front surface of the control box; the frame body is arranged on the front surface of the control box; one end of the bump is inserted into the frame body and connected with the protective shell; according to the monitoring device, movement of the protective shells is achieved through the protective assembly by means of the frame body and the protruding block, and butt joint of the two protective shells is controlled by means of the rotating block and the cylinder, so that the switch base is protected. Compared with an existing device, the protective shell is not prone to being lost in a sliding connection mode. According to the monitoring device, the stabilizing assembly pushes the bottom plate to move by utilizing springback of the second spring, the inserting rod is driven to be inserted into the cylinder to pull the L-shaped plate to limit the rotating block, and the situation that the groove is separated from the cylinder due to vibration during working is avoided.

Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, specifically a water turbine temperature monitoring device. Background Technology

[0002] A water turbine is a power machine that converts the energy of flowing water into rotational mechanical energy. It belongs to the category of turbine machinery within fluid machinery. Modern water turbines are mostly installed in hydroelectric power stations to drive generators. In a hydroelectric power station, water from the upstream reservoir is drawn to the turbine through a water intake pipe, driving the turbine runner to rotate and power the generator. The water that has done its work is then discharged downstream through the tailrace pipe. The higher the water head and the greater the flow rate, the greater the output power of the water turbine. Real-time temperature monitoring of the water turbine is necessary during operation.

[0003] Chinese utility model CN220108439U describes a turbine temperature monitoring device, which includes a switch box protection structure designed to prevent accidental contact with the switch box during use. The principle is to cover the outside of the switch box with a protective shell and drag it downwards so that the mounting plate and the rocker plate engage to complete the installation of the protective device.

[0004] However, in existing devices, the protective casing exists independently and is not connected to the control box. Given the large number of devices used at the site, the protective casing is very prone to falling off or being lost, thus failing to protect the switch housing. Therefore, a non-lost protective structure was designed to address the aforementioned problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a turbine temperature monitoring device that is not easily lost, thus solving the problem that existing devices are prone to loss due to the lack of component connections, which affects the protective effect.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a turbine temperature monitoring device, comprising: a turbine with a generator mounted on its top; a control box mounted on the generator; a switch base mounted on the front surface of the control box; and a protective assembly mounted on the control box, the protective assembly comprising: a protective shell mounted on the front surface of the control box; a frame mounted on the front surface of the control box; a protrusion inserted into the interior of the frame and connected to the protective shell; a rotating block rotatably mounted on the outer side wall of the protective shell; a groove formed on the outer side wall of one end of the rotating block; and a cylinder mounted on the outer side wall of the protective shell.

[0009] In some embodiments, the diameter of the protrusion is the same as the width of the inner sidewall of the frame.

[0010] In some embodiments, the protective component further includes: a spring disposed on the inner side of the protective housing, with both ends connected to the switch base and the inner sidewall of the protective housing.

[0011] In some embodiments, the protective assembly further includes: one end of a crossbar passing through the outer wall of the protective housing and through the spring to be connected to the switch base.

[0012] In some embodiments, the protective component further includes a sealing gasket disposed on the outside of the protective housing.

[0013] In some embodiments, a stabilizing component is provided inside the cylinder, the stabilizing component further comprising: one end of a plug inserted into the interior of the cylinder; a base plate disposed at one end of the plug; a second spring disposed on the outside of the plug; and an L-shaped plate disposed at one end of the plug.

[0014] In some embodiments, the insertion rod is a rectangular rod design.

[0015] In some embodiments, the stabilizing component further includes a handle disposed on the outer side wall of the L-shaped plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a turbine temperature monitoring device, which has the following features:

[0018] Beneficial effects:

[0019] 1. This monitoring device uses a protective frame and protrusions to move the protective housing, and a rotating block and cylinder to control the docking of the two protective housings, thereby protecting the switch base. Compared to existing devices with sliding connection of the protective housing, this method is less prone to loss.

[0020] 2. This monitoring device uses a stabilizing component to push the base plate to move by the return of a spring, which in turn drives the insertion rod to insert into the inside of the cylinder and pulls the L-shaped plate to restrict the rotating block, thus preventing vibration during operation from causing the groove to separate from the cylinder. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the control box of this utility model;

[0023] Figure 3 This is a schematic diagram of the unfolded protective shell of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the cylinder of this utility model.

[0025] In the diagram: 11. Water turbine; 12. Generator; 13. Control box; 14. Switch base;

[0026] 2. Protective components; 21. Protective shell; 22. Frame; 23. Protrusion; 24. Rotating block; 25. Groove; 26. Cylinder; 27. Spring 1; 28. Crossbar; 29. ​​Sealing gasket;

[0027] 3. Stabilizing component; 31. Insert rod; 32. Base plate; 33. Spring 2; 34. L-shaped plate; 35. Handle. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0032] In related technologies, the principle is to cover the outside of the switch box with a protective shell and drag it downwards, so that the mounting plate and the rocker arm engage to complete the installation of the protective device. However, in the existing device, the protective shell exists separately and is not connected to the control box. With many devices in the area, the protective shell is very easy to fall off or be lost, making it impossible to protect the switch box.

[0033] To address some of the problems in related technologies, this application provides a turbine temperature monitoring device. When the switch base needs protection, the two protective shells 21 are first dragged close together. While moving, the protrusion 23 slides inside the frame 22, ensuring stable movement of the protective shells 21 until the open ends of the two protective shells 21 are aligned. Then, the rotating block 24 is controlled to rotate, so that the groove 25 at one end of the rotating block 24 engages with the outer wall of the cylinder 26, making it difficult for the two protective shells 21 to separate and protecting the switch base 14 inside, preventing accidental contact. The control box 13 is equipped with a temperature sensor to monitor the temperature of the generator 12 and the turbine 11 in real time.

[0034] This application is described below with reference to the accompanying drawings and specific embodiments:

[0035] This application provides a turbine temperature monitoring device, comprising: a turbine 11 with a generator 12 mounted on its top; a control box 13 mounted on the generator 12; a switch base 14 mounted on the front surface of the control box 13; and a protective assembly 2 mounted on the control box 13, the protective assembly 2 comprising: a protective shell 21 mounted on the front surface of the control box 13; a frame 22 mounted on the front surface of the control box 13; a protrusion 23 having one end inserted into the interior of the frame 22 and connected to the protective shell 21; a rotating block 24 rotatably mounted on the outer side wall of the protective shell 21; a groove 25 formed on one end of the outer side wall of the rotating block 24; and a cylinder 26 mounted on the outer side wall of the protective shell 21.

[0036] Specifically, the working principle of turbine temperature monitoring mainly includes the following aspects:

[0037] The Importance of Temperature Monitoring: The bearings of a hydro-generator are a crucial part of the entire system, supporting the weight of the rotor and stator, bearing the rotor's load and inertial forces, and ensuring the relative position between the rotor and stator remains constant. The temperature of the bearing bushes is one of the important indicators for measuring the bearing's operating condition. If the bearing bush temperature is too high, it can cause problems such as poor bearing lubrication, increased wear, and equipment failure.

[0038] Monitoring Technology Principle: The hydro-generator bearing temperature monitoring technology uses bearing temperature sensors to detect the bearing temperature in real time, thereby monitoring the equipment status and providing early warnings. The monitoring system can output real-time temperature data and compare it with preset temperature thresholds; if the threshold is exceeded, an alarm will be triggered immediately.

[0039] Specific application scenarios: Hydroelectric generator sets require close monitoring of oil, gas, water, and the temperatures of the stator core and coils. The commonly used measuring element is the three-wire RTD platinum resistance thermometer, which is widely used due to its high measurement accuracy, stability, reliability, and ease of installation. RTD platinum resistance thermometers can be installed in embedded or inserted manner, requiring effective shielding and protection to ensure measurement accuracy.

[0040] Monitoring system composition: For example, the temperature and speed monitoring system of Chengdu Guoke WK2000 unit adopts imported embedded system hardware and Microsoft WinCE operating system. It is controlled by LCD touch screen and the fully intelligent temperature acquisition module communicates and transmits data to realize fixed-point / patrol monitoring and measurement of the temperature of the thrust shaft, guide bearing, stator coil, stator core, oil tank oil temperature, and cooler inlet and outlet temperatures.

[0041] The control box 13 is equipped with a temperature sensor, a data acquisition module, a data analysis module, and an alarm and control module. These modules work together to monitor the temperature of the turbine in real time. If the temperature is too high, it can be detected in time and an alarm can be triggered immediately.

[0042] There is a magnetic connection between the groove 25 and the cylinder 26, which can further stabilize the position of the rotating block 24.

[0043] When the switch base needs to be protected during use, first drag the two protective shells 21 close together. While moving, the protrusion 23 slides inside the frame 22 to ensure the stable movement of the protective shells 21 until the open ends of the two protective shells 21 are connected. Then control the rotating block 24 to rotate, so that the groove 25 at one end of the rotating block 24 engages with the outer wall of the cylinder 26, making it difficult for the two protective shells 21 to separate and protecting the switch base 14 inside, so that it is not easily bumped. The control box 13 is equipped with a temperature sensor to monitor the temperature of the generator 12 and the water turbine 11 in real time.

[0044] In some embodiments, the diameter of the protrusion 23 is the same as the width of the inner sidewall of the frame 22.

[0045] The consistent width design ensures that the gap between the protrusion 23 and the inner wall of the frame 22 is ≤0.5mm, making the protective shell 21 more stable during movement.

[0046] In some embodiments, the protective component 2 further includes: a spring 27 disposed on the inner side of the protective housing 21, and connected at both ends to the switch base 14 and the inner sidewall of the protective housing 21.

[0047] When in use, the design of spring 27 allows it to spring back and push the protective shell 21 away after the protective shell 21 is released, exposing the switch base 14 for easy operation.

[0048] In some embodiments, the protective assembly 2 further includes: one end of a crossbar 28 passing through the outer wall of the protective housing 21 and passing through the spring 27 to be connected to the switch base 14.

[0049] When in use, the design of the crossbar 28 can prevent the spring 27 from bending when it is compressed, thus better protecting the spring 27.

[0050] In some embodiments, the protective component 2 further includes a sealing gasket 29 disposed on the outside of the protective housing 21.

[0051] When in use, the design of the sealing gasket 29 can reduce the gap after the two protective shells 21 are joined together, which can block most of the dust and impurities.

[0052] In some embodiments, a stabilizing component 3 is provided inside the cylinder 26. The stabilizing component 3 further includes: one end of a rod 31 inserted into the interior of the cylinder 26; a base plate 32 disposed at one end of the rod 31; a spring 33 disposed on the outside of the rod 31; and an L-shaped plate 34 disposed at one end of the rod 31.

[0053] During use, the spring 33 rebounds and pushes the base plate 32 to move inside the cylinder 26, thereby driving the insertion rod 31 to be inserted into the cylinder 26. At the same time, it drives the L-shaped plate 34 to move, so that the L-shaped plate 34 can restrict the rotation of the rotating block 24. When the insertion rod 31 is fully inserted, the L-shaped plate 34 and the outer edge of the rotating block 24 form a 15° angle limit to prevent the vibration generated by the generator 12 during use from causing the groove 25 to detach from the cylinder 26.

[0054] In some embodiments, the insertion rod 31 is a rectangular rod design.

[0055] The rectangular design of the insertion rod 31 during use prevents rotation, thus ensuring the stable movement of the L-shaped plate 34.

[0056] In some embodiments, the stabilizing component 3 further includes a handle 35 disposed on the outer side wall of the L-shaped plate 34.

[0057] The handle 35 is designed for easy gripping and controlling the movement of the L-shaped plate 34 during use.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0059] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbine temperature monitoring device, comprising: A water turbine (11) with a generator (12) mounted on top; A control box (13) is mounted on the generator (12); A switch holder (14) is disposed on the front surface of the control box (13); The feature is that a protective component (2) is provided on the control box (13), and the protective component (2) includes: A protective shell (21) is disposed on the front surface of the control box (13); A frame (22) is disposed on the front surface of the control box (13); The protrusion (23) is inserted into the interior of the frame (22) and connected to the protective shell (21) at one end; Rotating block (24) is rotatably disposed on the outer side wall of the protective shell (21); A groove (25) is formed on the outer side wall of one end of the rotating block (24); A cylinder (26) is disposed on the outer side wall of the protective shell (21).

2. The turbine temperature monitoring device according to claim 1, characterized in that: The diameter of the protrusion (23) is the same as the width of the inner sidewall of the frame (22).

3. The turbine temperature monitoring device according to claim 1, characterized in that: The protective component (2) also includes: Spring 1 (27) is disposed on the inner side of the protective shell (21) and its two ends are connected to the switch base (14) and the inner sidewall of the protective shell (21).

4. The turbine temperature monitoring device according to claim 3, characterized in that: The protective component (2) also includes: A crossbar (28) passes through the outer wall of the protective shell (21) at one end and is connected to the switch base (14) through the spring (27).

5. The turbine temperature monitoring device according to claim 1, characterized in that: The protective component (2) also includes: A sealing gasket (29) is disposed on the outside of the protective shell (21).

6. The turbine temperature monitoring device according to claim 1, characterized in that: The cylinder (26) is internally provided with a stabilizing component (3), which further includes: The insertion rod (31) is inserted into the interior of the cylinder (26) at one end; A base plate (32) is disposed at one end of the insertion rod (31); Spring 2 (33) is disposed on the outside of the insert (31); An L-shaped plate (34) is disposed at one end of the insertion rod (31).

7. A turbine temperature monitoring device according to claim 6, characterized in that: The insertion rod (31) is a rectangular rod design.

8. A turbine temperature monitoring device according to claim 6, characterized in that: The stabilizing component (3) also includes: A handle (35) is provided on the outer side wall of the L-shaped plate (34).

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