Inner guide ring structure of water turbine shell

Abstract

The utility model relates to the technical field of water turbines, in particular to an inner guide ring structure of a water turbine shell, which comprises an inner guide ring main body, and is characterized in that a volute is arranged on the outer wall of the inner guide ring main body, the inner guide ring main body comprises an upper ring plate, a lower ring plate is arranged below the upper ring plate, a bottom ring plate is arranged below the lower ring plate, and the volute is arranged on the outer wall of the inner guide ring main body. The inner guide ring comprises an inner guide ring body, a lower annular plate is arranged on the inner guide ring body, a bottom annular plate is arranged on the inner guide ring body, fixing pins are arranged between the lower annular plate and the bottom annular plate, the upper annular plate and the lower annular plate are correspondingly arranged, fixing guide vanes are arranged between the upper annular plate and the lower annular plate, and a control ring is arranged on the inner wall of the inner guide ring body. And the stability of the whole structure is obviously improved. In addition, a protective coating on the outer wall of the volute further enhances the corrosion resistance and the service life of the structure; and an integrated sensor interface and a visual window enable an operator to monitor the running state of the water turbine in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbines, in particular to an inner guide ring structure of a water turbine casing. Background Art

[0002] With the continuous growth of global energy demand, hydropower has attracted widespread attention as a clean, renewable energy source. However, traditional hydraulic turbines suffer from several operational issues, such as insufficient stability, difficult maintenance, and low efficiency. These issues not only affect the normal operation of the turbine but also increase maintenance costs and safety risks. Therefore, the development of an efficient, stable, and easy-to-maintain guide ring structure within the turbine casing is particularly important.

[0003] A Chinese patent discloses a turbine and pump-turbine seat ring (publication number: CN 217712792U) comprising a first docking ring and a second docking ring fixedly connected, wherein the first docking ring comprises a first ring plate, and a first spliced ​​guide vane is evenly fixed along the circumference of the first ring plate on a side facing the second ring plate, and the first spliced ​​guide vane and the first ring plate are an integral structure; the second docking ring comprises a second ring plate, and a second spliced ​​guide vane is evenly fixed along the circumference of the second ring plate on a side facing the first ring plate. However, this turbine seat ring has the problems of insufficient stability, difficulty in maintenance, low efficiency, etc., which affects the normal operation of the turbine, increases maintenance costs and safety hazards, and therefore requires a guide ring structure inside the turbine casing. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the turbine seat ring in the prior art, such as insufficient stability, difficult maintenance, low efficiency, etc., which affect the normal operation of the turbine, increase maintenance costs and safety hazards, and propose a guide ring structure inside the turbine casing.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model is a water turbine casing inner guide ring structure, comprising an inner guide ring body, characterized in that: the outer wall of the inner guide ring body is provided with a volute, the inner guide ring body comprises an upper ring plate, a lower ring plate is provided below the upper ring plate, a bottom ring plate is provided below the lower ring plate, a fixing pin is provided between the lower ring plate and the bottom ring plate, the number of the fixing pins is 20 to 30 and they are arranged in an array with equal spacing, the upper ring plate and the lower ring plate are arranged correspondingly, a fixing guide vane is provided between the upper ring plate and the lower ring plate, the number of the fixing guide vanes is 20 to 30 and they are arranged obliquely with equal spacing, and a control ring is provided on the inner wall of the inner guide ring body, by increasing the number of fixing pins and arranging them in an array with equal spacing, the stability of the entire structure can be significantly improved, the setting of the fixed guide vane helps to optimize the water flow path and reduce the impact force of the water flow on the structure, and the combination of multiple ring plates and fixing pins increases the strength and durability of the structure.

[0006] Preferably, a lubrication system interface is provided on one side of the top of the control ring, through which automatic lubrication function can be realized, reducing the need for manual maintenance. Regular lubrication can reduce wear between components, thereby extending the service life of the entire structure.

[0007] Preferably, an integrated sensor interface is provided on one side of the upper ring plate, which can monitor the operating status of the turbine in real time through the sensor and detect potential problems in time. The data collected by the sensor can be used for subsequent analysis to help optimize the performance and maintenance strategy of the turbine.

[0008] Preferably, a visualization window is provided on the surface of the upper ring plate, and the visualization window is a ring structure. There are two visualization windows and they are arranged correspondingly in the upper and lower parts. The visualization window allows the operator to directly observe the internal working conditions, which is convenient for daily inspection and maintenance. Abnormal conditions can be discovered in time through the visualization window to avoid accidents.

[0009] Preferably, the outer wall of the volute is provided with a protective coating, which can effectively prevent corrosion damage to the volute caused by external environmental factors. Through the protection of the protective coating, the service life of the volute and even the entire turbine can be significantly extended.

[0010] Preferably, the control ring is provided with feet at the bottom, and the number of the feet is 3 and they are arranged at equal intervals. The design of the feet can further improve the stability of the entire structure and ensure that it will not shake or shift during operation; the presence of the feet also facilitates the installation process of the entire structure, making it more stable and reliable.

[0011] The utility model is beneficial in that:

[0012] This application significantly improves the stability of the entire structure by providing fixed pins and fixed guide vanes on the inner guide ring body and arranging them in an equidistant array. In addition, the protective coating on the outer wall of the volute further enhances the corrosion resistance and service life of the structure; the design of the fixed guide vanes helps optimize the water flow path and reduce the impact of the water flow on the structure, thereby improving the efficiency of the turbine; the integrated sensor interface and visualization window allow operators to monitor the operating status of the turbine in real time, promptly identify potential problems, and achieve automatic lubrication through the lubrication system interface, reducing the need for manual maintenance; the modular design of the upper and lower ring plates facilitates the rapid replacement of damaged parts, reducing maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic structural diagram of the utility model.

[0015] Figure 2 For this utility model Figure 1 Enlarged view of I in the middle.

[0016] Figure 3 This is a schematic diagram of the main structure of the utility model.

[0017] Figure 4 For this utility model Figure 3 Enlarged view of II.

[0018] In the figure: 1. Inner guide ring body; 2. Volute; 3. Protective coating; 4. Upper ring plate; 5. Fixed guide vane; 6. Lower ring plate; 7. Control ring; 8. Base; 9. Fixing pin; 10. Bottom ring plate; 11. Integrated sensor interface; 12. Visualization window; 13. Lubrication system interface. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1-4As shown, a turbine casing inner guide ring structure includes an inner guide ring body 1, characterized in that: the outer wall of the inner guide ring body 1 is provided with a volute 2, the inner guide ring body 1 includes an upper ring plate 4, a lower ring plate 6 is provided below the upper ring plate 4, a bottom ring plate 10 is provided below the lower ring plate 6, a fixing pin 9 is provided between the lower ring plate 6 and the bottom ring plate 10, the number of the fixing pins 9 is 20 to 30 and they are arranged in an array with equal spacing, the upper ring plate 4 and the lower ring plate 6 are arranged correspondingly, and a fixing guide vane 5 is provided between the upper ring plate 4 and the lower ring plate 6, the number of the fixing guide vanes 5 is 20 to 30 and they are arranged obliquely with equal spacing, and a control ring 7 is provided on the inner wall of the inner guide ring body 1. By increasing the number of fixing pins 9 and arranging them in an array with equal spacing, the stability of the entire structure can be significantly improved. The arrangement of the fixed guide vane 5 helps to optimize the water flow path and reduce the impact force of the water flow on the structure. The combination of multiple ring plates and fixing pins 9 increases the strength and durability of the structure.

[0022] In this embodiment, a lubrication system interface 13 is provided on one side of the top of the control ring 7. The lubrication system interface 13 can realize automatic lubrication function, reduce the need for manual maintenance, and regular lubrication can reduce wear between components, thereby extending the service life of the entire structure.

[0023] In this embodiment, an integrated sensor interface 11 is provided on one side of the upper ring plate 4. The integrated sensor interface 11 is an existing technology and can monitor the operating status of the turbine in real time through sensors to promptly detect potential problems. The data collected by the sensors can be used for subsequent analysis to help optimize the performance and maintenance strategy of the turbine.

[0024] In this embodiment, a visualization window 12 is provided on the surface of the upper ring plate 4. The visualization window 12 is a ring structure. There are two visualization windows 12 and they are arranged correspondingly up and down. The visualization window 12 allows the operator to directly observe the internal working conditions, which is convenient for daily inspection and maintenance. Abnormal conditions can be discovered in time through the visualization window 12 to avoid accidents.

[0025] In this embodiment, the outer wall of the volute 2 is provided with a protective coating 3. The protective coating 3 is a common product on the market and can be purchased directly. The protective coating 3 can effectively prevent corrosion damage to the volute 2 caused by external environmental factors. Through the protection of the protective coating 3, the service life of the volute 2 and even the entire turbine can be significantly extended.

[0026] In this embodiment, a foot 8 is provided at the bottom of the control ring 7, and the foot 8 is fixed to the control ring 7 by screwing or welding. The number of the foot 8 is 3 and they are arranged at equal intervals. The design of the foot 8 can further improve the stability of the entire structure and ensure that it will not shake or shift during operation; the presence of the foot 8 also facilitates the installation process of the entire structure, making it more stable and reliable.

[0027] The working principle of this embodiment is as follows: when water flows into the volute 2: When water flows into the turbine, it will first pass through the volute 2. The volute 2 is wrapped around the outer wall of the inner guide ring body 1, which plays a role in protecting the internal structure and also guides the water flow into the working area of ​​the turbine; after entering the volute 2, the water flow will encounter the fixed guide vanes 5,

[0028] The water flow drives the blades to rotate. After being guided by the fixed guide vanes 5, the water flow drives the blades of the turbine to rotate.

[0029] While the water flow propels the blades to rotate, the control ring 7 on the inner wall of the inner guide ring body 1 further reinforces the overall structure. During turbine operation, the integrated sensor interface 11 monitors the turbine's operating status in real time, including parameters such as temperature, pressure, and flow rate. If an abnormality is detected, the operator can directly observe the internal workings through the visualization window 12 and take appropriate measures. Furthermore, the lubrication system interface 13 enables automatic lubrication, regularly providing lubricant to bearings and other moving parts, reducing wear and extending service life.

[0030] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A turbine casing inner guide ring structure, comprising an inner guide ring body (1), characterized in that: The outer wall of the inner guide ring body (1) is provided with a volute (2), and the inner guide ring body (1) includes an upper ring plate (4), a lower ring plate (6) is provided below the upper ring plate (4), a bottom ring plate (10) is provided below the lower ring plate (6), and a fixing pin (9) is provided between the lower ring plate (6) and the bottom ring plate (10), and the number of the fixing pins (9) is 20 to 30 and they are arranged in an array at equal intervals. The upper ring plate (4) and the lower ring plate (6) are arranged correspondingly, and a fixing guide vane (5) is provided between the upper ring plate (4) and the lower ring plate (6), and the number of the fixing guide vane (5) is 20 to 30 and they are arranged obliquely at equal intervals. The inner wall of the inner guide ring body (1) is provided with a control ring (7).

2. The inner guide ring structure of a turbine casing according to claim 1, characterized in that: A lubrication system interface (13) is provided on one side of the top of the control ring (7).

3. The inner guide ring structure of a turbine casing according to claim 1, characterized in that: An integrated sensor interface (11) is provided on one side of the upper ring plate (4).

4. The inner guide ring structure of a turbine casing according to claim 1, characterized in that: The surface of the upper ring plate (4) is provided with a visualization window (12), the visualization window (12) is a ring structure, and the number of the visualization windows (12) is two and they are arranged correspondingly in the upper and lower parts.

5. The inner guide ring structure of a turbine casing according to claim 1, characterized in that: The outer wall of the volute (2) is provided with a protective coating (3).

6. The inner guide ring structure of a turbine casing according to claim 1, characterized in that: The bottom of the control ring (7) is provided with feet (8), and the number of the feet (8) is 3 and they are arranged at equal intervals.

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