Efficient remote control type hydraulic power generation safety detection device

Abstract

The utility model relates to the technical field of hydroelectric power generation, in particular to an efficient remote control type hydroelectric power generation safety detection device. An efficient remote control type hydraulic power generation safety detection device comprises a first flow meter, the first flow meter is arranged at an inlet of a water flow channel, a second flow meter is arranged at an outlet of the water flow channel, and a multi-stage adjusting mechanism is arranged on the water flow channel between the first flow meter and the second flow meter. Monitoring of the first flow meter is fed back to the main control unit in real time, the main control unit regulates and controls the rotating directions of the first rotating vane and the second rotating vane and the expansion and contraction amount of the second telescopic cylinder body according to the water quantity, and therefore the water flow can be regulated according to the real-time water flow, it is ensured that the water turbine operates in the best state, and the power generation efficiency is improved; overload or underload of the water turbine is avoided, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic power generation, in particular to a high-efficiency remote-controlled safety detection device for hydraulic power generation. Background Art

[0002] At present, in the hydraulic power generation industry, in order to ensure the safe operation of hydropower stations and improve power generation efficiency, the monitoring and regulation of water flow are key links to ensure power generation efficiency and the safe operation of equipment.

[0003] However, the existing safety detection devices do not have the function of monitoring water flow, and cannot accurately monitor the changes in water flow in real time. When sudden changes in water volume occur in hydropower stations, they cannot react in time, which may cause the water turbine to be overloaded or underloaded, affecting power generation efficiency and equipment safety; most of the existing devices rely on manual intervention to regulate water flow, which not only increases the workload of operators, but also is prone to untimely or inaccurate regulation due to human factors.

[0004] Therefore, it is necessary to provide a high-efficiency remote-controlled safety detection device for hydraulic power generation to solve the problems in the above background art. Summary of the Utility Model

[0005] In view of the above problems, the present application provides a high-efficiency remote-controlled safety detection device for hydraulic power generation. Through the monitoring of the first flowmeter, it is fed back to the main control unit in real time. The main control unit controls the rotation directions of the first and second rotating blades and the telescopic amount of the second telescopic cylinder according to the size of the water volume, so that the water flow can be adjusted according to the real-time water flow, ensuring that the water turbine operates in the best state, improving power generation efficiency, avoiding overload or underload of the water turbine, and increasing safety.

[0006] To achieve the purpose of the present application, the following technical solutions are provided:

[0007] The present application provides a high-efficiency remote-controlled safety detection device for hydraulic power generation, including: a first flowmeter and a second flowmeter. Among them, the first flowmeter is installed at the entrance of the water flow channel, the second flowmeter is installed at the exit of the water flow channel, and a multi-stage adjustment mechanism is arranged on the water flow channel between the first flowmeter and the second flowmeter. The first flowmeter and the second flowmeter are both electrically connected to the main control unit, and the main control unit is electrically connected to the multi-stage adjustment mechanism. The multi-stage adjustment mechanism includes a disk frame fixedly arranged between the water flow channels. A first rotating blade assembly and a second rotating blade assembly are rotatably arranged in the disk frame. The first rotating blade assembly is configured with at least two groups, and the first rotating blade assembly is symmetrically arranged in the disk frame. The second rotating blade assembly is configured with at least two groups, and the second rotating blade assembly is symmetrically arranged in the disk frame.

[0008] In a possible implementation, the multi-stage adjustment mechanism further includes a frame fixedly arranged on the disc frame. A first telescopic cylinder body is hingedly arranged at the lower end of the frame. The output end of the first telescopic cylinder body is hingedly provided with a hinge frame. A plurality of guide vanes are rotatably arranged on the hinge frame, and the other ends of the guide vanes are respectively fixed to the first vane assembly and the second vane assembly.

[0009] In a possible implementation, the first vane assembly includes: a first vane. A first arched seat is fixedly arranged at the axis center of the first vane. The first arched seat and the first vane are fixed by a plurality of first rib plates, and a first rotating shaft is fixedly arranged through the axis center of the first vane.

[0010] In a possible implementation, the second vane assembly includes: a second vane. A second arched seat is fixedly arranged at the axis center of the second vane. The second arched seat and the second vane are fixed by a plurality of second rib plates. A second rotating shaft is fixedly arranged through the axis center of the second vane, and a drainage hole is opened at the center position of the second vane.

[0011] In a possible implementation, a second telescopic cylinder body is fixedly arranged in the second arched seat. A mixing vane is fixed to the output end of the second telescopic cylinder body. A flow-changing hole is opened on the mixing vane, and the diameter of the flow-changing hole is the same as that of the drainage hole.

[0012] In a possible implementation, the guide vanes are respectively fixed to the first rotating shaft and the second rotating shaft.

[0013] In a possible implementation, a guide rail is fixedly arranged in the second vane.

[0014] In a possible implementation, the mixing vane is movably arranged on the guide rail.

[0015] The beneficial effects of the present utility model are:

[0016] 1. Through the monitoring of the first flowmeter, the present utility model feeds back to the main control unit in real time. When the water flow rate is large, the main control unit adjusts the rotation directions of the first rotor blade and the second rotor blade according to the amount of water. The disk frame is in the fully open state. Then, through the monitoring of the second flowmeter, it further feeds back and adjusts the negative rotation directions of the first rotor blade and the second rotor blade to avoid excessive water flow rate. When the water flow rate decreases, the main control unit continues to adjust the negative rotation directions of the first rotor blade and the second rotor blade according to the amount of water to reduce the water output of the disk frame. When the water flow rate decreases to the threshold value, the main control unit adjusts the negative rotation directions of the first rotor blade and the second rotor blade according to the amount of water, and the disk frame is in the fully closed state. It adjusts the telescopic amount of the second telescopic cylinder body in real time, thereby increasing the water pressure. Furthermore, it can adjust the water flow size according to the real-time water flow rate, ensuring that the water turbine operates in the best state, improving the power generation efficiency, avoiding overloading or underloading of the water turbine, and increasing the safety.

[0017] 2. Through the monitoring of the first flowmeter and the second flowmeter, the present utility model can remotely monitor and adjust the water flow rate without on-site operation by personnel, improving the convenience and flexibility of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide further understanding of the present application, and constitute a part of the specification. They are used together with the embodiments of the present application to explain the present application, but do not constitute a limitation to the present application.

[0019] Figure 1 It is a schematic diagram of the overall module structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the multi-stage adjustment mechanism in the present utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the first rotor blade assembly in the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the second rotor blade assembly in the present utility model;

[0024] Figure 6 It is a schematic diagram of the internal sectional structure of the second rotor blade assembly in the present utility model;

[0025] Reference numerals: 1, water flow channel; 2, first flowmeter; 3, multi-stage adjustment mechanism; 4, second flowmeter; 31, disc frame; 32, first vane assembly; 33, second vane assembly; 34, frame; 35, first telescopic cylinder body; 36, hinge frame; 37, guide vane; 321, first vane; 322, first arched seat; 323, first rib; 324, first rotating shaft; 331, second vane; 332, second arched seat; 333, second rib; 334, second rotating shaft; 335, drainage hole; 336, second telescopic cylinder body; 337, mixing vane; 338, flow-changing hole; 3331, guide rail. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0027] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the present application, unless otherwise stated, the meaning of "a plurality" is three or more.

[0028] Figures 1 - 6 A high-efficiency remote control type water power generation safety detection device provided for an embodiment of the present application includes: a first flowmeter 2 and a second flowmeter 4. Among them, the first flowmeter 2 is installed at the inlet of the water flow channel 1, the second flowmeter 4 is installed at the outlet of the water flow channel 1, and a multi-stage adjustment mechanism 3 is provided on the water flow channel 1 between the first flowmeter 2 and the second flowmeter 4. The first flowmeter 2 and the second flowmeter 4 are both electrically connected to the main control unit, and the main control unit is electrically connected to the multi-stage adjustment mechanism 3. The multi-stage adjustment mechanism 3 includes a disc frame 31 fixedly provided between the water flow channels 1. A first vane assembly 32 and a second vane assembly 33 are rotatably provided in the disc frame 31. The first vane assembly 32 is at least configured in two groups and is symmetrically arranged in the disc frame 31. The second vane assembly 33 is at least configured in two groups and is symmetrically arranged in the disc frame 31.

[0029] Based on the above technical solution, under normal circumstances, the main control unit adjusts the rotation directions of the first vane assembly 32 and the second vane assembly 33 to make the tray 31 in a fully open state. When the first flowmeter 2 detects an increase in water flow and the second flowmeter 4 detects that the water flow reaches the threshold value, the main control unit controls the first vane assembly 32 and the second vane assembly 33 to deflect negatively to reduce the water output of the tray 31; when the first flowmeter 2 detects a decrease in water flow, the main control unit controls the first vane assembly 32 and the second vane assembly 33 to continue to deflect negatively to further reduce the water output of the tray 31, so that the water flow size can be adjusted according to the real-time water flow, ensuring that the water turbine operates in the best state, improving the power generation efficiency, avoiding overloading or underloading of the water turbine, and increasing the safety.

[0030] Based on the above technical solution, in this application, through the monitoring of the first flowmeter 2 and the second flowmeter 4, the water flow can be remotely monitored and adjusted without on-site operation by personnel, improving the convenience and flexibility of operation.

[0031] In a possible implementation manner, the multi-stage adjustment mechanism 3 further includes a frame 34 fixedly arranged on the tray 31. The lower end of the frame 34 is hinged with a first telescopic cylinder body 35. The output end of the first telescopic cylinder body 35 is hinged with a hinge frame 36. A plurality of guide vanes 37 are rotatably arranged on the hinge frame 36. The other ends of the guide vanes 37 are respectively fixed to the first vane assembly 32 and the second vane assembly 33. After the first telescopic cylinder body 35 expands and contracts, the rotation directions of the first vane assembly 32 and the second vane assembly 33 can be adjusted through the movement of the hinge frame 36 and the guide vanes 37, thereby adjusting the water output of the tray 31.

[0032] In a possible implementation manner, the first vane assembly 32 includes: a first vane 321. A first arched seat 322 is fixedly arranged at the axis center of the first vane 321. The first arched seat 322 and the first vane 321 are fixed by a plurality of first rib plates 323. And a first rotating shaft 324 is fixedly arranged through the axis center of the first vane 321.

[0033] It should be noted that the first vane 321 is preferably rotatably arranged at the uppermost and lowermost ends of the tray 31. When the water flow decreases, during the gradual closing process of the first vane 321, the water pressure at the middle position of the tray 31 can be increased.

[0034] In a possible implementation manner, the second rotating vane assembly 33 includes: a second rotating vane 331, at the axis center of the second rotating vane 331, a second arched seat 332 is fixedly arranged, the second arched seat 332 and the second rotating vane 331 are fixed by a plurality of second rib pieces 333, a second rotating shaft 334 is fixedly arranged through the axis center of the second rotating vane 331, and a drainage hole 335 is opened at the central position of the second rotating vane 331.

[0035] In a possible implementation manner, a second telescopic cylinder body 336 is fixedly arranged in the second arched seat 332, the output end of the second telescopic cylinder body 336 is fixed with a mixing vane 337, a flow-changing hole 338 is opened on the mixing vane 337, and the diameter of the flow-changing hole 338 is the same as that of the drainage hole 335.

[0036] It should be noted that when the first flowmeter 2 monitors that the water flow rate decreases to the threshold value, the main control unit controls the deflection of the first rotating vane 321 and the second rotating vane 331, the disc frame 31 is in a fully closed state, and then according to the size of the water flow rate, the telescopic amount of the second telescopic cylinder body 336 is feedback-adjusted, and synchronously, the conduction amount of the flow-changing hole 338 and the drainage hole 335 can be adjusted.

[0037] In a possible implementation manner, the guide pieces 37 are respectively fixed to the first rotating shaft 324 and the second rotating shaft 334.

[0038] Through the above technical solution, when the first telescopic cylinder body 35 extends, the hinge frame 36 moves downward, the guide piece 37 drives the first rotating vane 321 and the second rotating vane 331 to deflect, so that both sides of the disc frame 31 are gradually conducted; when the first telescopic cylinder body 35 contracts, the hinge frame 36 moves upward, the guide piece 37 drives the first rotating vane 321 and the second rotating vane 331 to deflect, so that both sides of the disc frame 31 are gradually closed.

[0039] In a possible implementation manner, a guide rail 3331 is fixedly arranged in the second rotating vane 331.

[0040] In a possible implementation manner, the mixing vane 337 is movably arranged on the guide rail 3331, the guide rail 3331 can limit the displacement direction of the mixing vane 337, when the second telescopic cylinder body 336 extends, the flow-changing hole 338 can be gradually conducted with the drainage hole 335, and the overall water output of the disc frame 31 can be adjusted, and the disc frame 31 can be adjusted to the fully open state; when the second telescopic cylinder body 336 extends and contracts, the flow-changing hole 338 can be gradually not conducted with the drainage hole 335, so as to adjust the disc frame 31 to the fully closed state.

[0041] With the above technical solution, when the first flowmeter 2 monitors that the water flow rate decreases to the threshold value, the main control unit controls the deflection of the first rotating blade 321 and the second rotating blade 331, so that the disc frame 31 is in a fully closed state, and adjusts the expansion and contraction amount of the second expansion cylinder 336 according to the magnitude of the water flow rate, so that the variable flow hole 338 is communicated with the diversion hole 335 within a certain range, thereby increasing the pressure of the water flow in the water flow channel 1.

[0042] Working principle:

[0043] Under normal circumstances, the first rotating blade 321 and the second rotating blade 331 are both open, and the disc frame 31 is in a fully open state. When the first flowmeter 2 monitors an increase in the water flow rate and the second flowmeter 4 monitors that the water flow rate reaches the threshold value, the main control unit controls the negative deflection of the first rotating blade 321 and the second rotating blade 331 to reduce the water output of the disc frame 31; when the first flowmeter 2 monitors a decrease in the water flow rate, the main control unit controls the deflection of the first rotating blade 321 and the second rotating blade 331 to further reduce the water output of the disc frame 31; when the first flowmeter 2 monitors that the water flow rate decreases to the threshold value, the main control unit controls the deflection of the first rotating blade 321 and the second rotating blade 331, the disc frame 31 is in a fully closed state, and adjusts the expansion and contraction amount of the second expansion cylinder 336 according to the magnitude of the water flow rate, so that the variable flow hole 338 is communicated with the diversion hole 335 within a certain range.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting it. The present application is not limited to the exact structure already described and illustrated in the drawings, and it cannot be considered that the specific implementation of the present application is only limited to these descriptions. For those of ordinary skill in the technical field to which the present application belongs, without departing from the concept of the present application, various changes and deformations made should be regarded as belonging to the protection scope of the present application.

Claims

1. An efficient remote-controlled hydropower generation safety detection device, characterized in that: include: A first flow meter (2) and a second flow meter (4), wherein the first flow meter (2) is arranged at the inlet of a water flow channel (1), the second flow meter (4) is arranged at the outlet of the water flow channel (1), a multi-stage regulating mechanism (3) is arranged on the water flow channel (1) between the first flow meter (2) and the second flow meter (4), the first flow meter (2) and the second flow meter (4) are both electrically connected to a main control unit, and the main control unit is electrically connected to the multi-stage regulating mechanism (3). The multi-stage regulating mechanism (3) comprises a disc rack (31) fixedly arranged between the water flow channels (1), a first rotating blade assembly (32) and a second rotating blade assembly (33) being rotatably arranged in the disc rack (31), the first rotating blade assembly (32) being configured into at least two groups, and the first rotating blade assembly (32) being symmetrically arranged in the disc rack (31), and the second rotating blade assembly (33) being configured into at least two groups, and the second rotating blade assembly (33) being symmetrically arranged in the disc rack (31).

2. According to claim 1, a highly efficient remote-controlled hydropower generation safety detection device is characterized in that: The multi-stage adjustment mechanism (3) further comprises a frame (34) fixedly arranged on the disc frame (31); a first telescopic cylinder (35) is hingedly arranged at the lower end of the frame (34); a hinge frame (36) is hingedly arranged at the output end of the first telescopic cylinder (35); a plurality of guide plates (37) are rotatably arranged on the hinge frame (36); the other ends of the guide plates (37) are respectively fixed to the first rotating blade assembly (32) and the second rotating blade assembly (33).

3. The high-efficiency remote-controlled hydropower generation safety detection device according to claim 2 is characterized in that: The first rotating blade assembly (32) comprises: a first rotating blade (321); a first arch seat (322) is fixedly arranged at the axis center of the first rotating blade (321); the first arch seat (322) and the first rotating blade (321) are fixed via a plurality of first ribs (323); and a first rotating shaft (324) is passed through and fixed at the axis center of the first rotating blade (321).

4. The high-efficiency remote-controlled hydropower generation safety detection device according to claim 3 is characterized in that: The second rotating blade assembly (33) comprises: a second rotating blade (331); a second arch seat (332) is fixedly arranged at the axis of the second rotating blade (331); the second arch seat (332) and the second rotating blade (331) are fixed via a plurality of second ribs (333); a second rotating shaft (334) is passed through and fixed at the axis of the second rotating blade (331); and a drainage hole (335) is opened at the center of the second rotating blade (331).

5. The high-efficiency remote-controlled hydropower generation safety detection device according to claim 4 is characterized in that: A second telescopic cylinder (336) is fixedly disposed in the second arch seat (332), a blending leaf (337) is fixedly disposed at the output end of the second telescopic cylinder (336), a flow-changing hole (338) is provided on the blending leaf (337), and the flow-changing hole (338) has the same diameter as the drainage hole (335).

6. The high-efficiency remote-controlled hydropower generation safety detection device according to claim 4 is characterized in that: The guide plates (37) are respectively fixed to the first rotating shaft (324) and the second rotating shaft (334).

7. The high-efficiency remote-controlled hydropower generation safety detection device according to claim 5, characterized in that: A guide rail (3331) is fixedly arranged inside the second rotating blade (331).

8. The high-efficiency remote-controlled water power generation safety detection device according to claim 7, characterized in that: The blending leaf (337) is movably arranged on the guide rail (3331).

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