Volute water taking grate of water-turbine generator set

Abstract

The utility model relates to the technical field of recording devices, and discloses a water-turbine generator set volute water taking grate which comprises a water grate body, a drainage groove penetrating through the upper wall face and the lower wall face of the water grate body is formed in the upper side wall face of the water grate body, the upper side wall face of the water grate body is fixedly installed on a sealing box body, and the upper side wall face of the sealing box body is connected with a water inlet pipeline in a sealed mode. Water liquid moves to the lower side position of the water grate body through the drainage groove from the upper side of the water grate body, enters the sealing box body through the interior of the water inlet pipeline and then is discharged out of the sealing box body through the interior of the drainage pipeline, a circulation state is formed, and when entering the sealing box body, the water liquid can make contact with blades on the outer wall of a water wheel, so that the water flow is uniform. The water wheel is stressed to drive the reciprocating lead screw to rotate, under the limiting effect of the connecting guide rod, the movable push plate moves rightwards firstly, the movable push plate pushes large sundries blocking the drainage groove to the right side of the water grate body, and the blocking risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of recording devices, in particular to a water collecting grate for a spiral case of a water turbine generator unit. Background Art

[0002] A water grate is arranged on the spiral case of a water turbine generator unit to filter water liquid. However, there are often sundries in the water liquid, and some large sundries will stay on the wall surface at the water inlet end of the water grate. These large sundries will block the drainage grooves opened on the water grate. If they are not cleaned in time, there will be a risk of blockage, which will affect the normal water conveyance work.

[0003] Therefore, we propose a water collecting grate for a spiral case of a water turbine generator unit. Content of the Utility Model

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a water collecting grate for a spiral case of a water turbine generator unit.

[0005] To achieve the above object, the utility model adopts the following technical scheme. The water collecting grate for a spiral case of a water turbine generator unit includes a water grate main body. A drainage groove penetrating the upper and lower wall surfaces is opened on the upper side wall surface of the water grate main body. A sealing box body is fixedly installed on the upper side wall surface of the water grate main body. An inlet pipe is hermetically connected to the upper side wall surface of the sealing box body. A drainage pipe is hermetically connected to the rear end of the right side wall surface of the sealing box body. Check valves are arranged inside both the inlet pipe and the drainage pipe. A reciprocating lead screw horizontally arranged is rotatably installed on the right side wall surface of the sealing box body in a sealed manner. The outer wall of the reciprocating lead screw extends into the interior of the sealing box body. A water wheel is fixedly installed on the outer wall of the reciprocating lead screw. Blades are arranged on the outer wall of the water wheel. The blades on the water wheel correspond to the bottom wall surface of the inlet pipe. A connecting guide rod for limiting is fixedly installed on the right side wall surface of the sealing box body. The connecting guide rod is horizontally arranged. A moving push plate is movably installed on the upper side wall surface of the water grate main body. The moving push plate is threadedly connected to the reciprocating lead screw. The outer wall of the connecting guide rod movably penetrates the left and right wall surfaces of the moving push plate. A storage mechanism is arranged on the water grate main body.

[0006] Preferably, the storage mechanism includes a connecting through groove and a storage box body. The connecting through groove is opened at the right end of the upper side wall surface of the water grate main body. The storage box body is hermetically connected to the position on the bottom wall surface of the water grate main body corresponding to the connecting through groove. The interior of the connecting through groove and the storage box body communicate with each other. Drainage holes are uniformly distributed on the bottom wall surface of the storage box body.

[0007] Preferably, the storage mechanism further includes a movable baffle. The movable baffle is integrally L-shaped. The movable baffle is movably installed inside the connecting through groove. A connecting sliding groove for limiting is opened on the right side wall surface of the connecting through groove.

[0008] Preferably, the horizontal end of the movable baffle is adapted to the inside of the connecting chute, the horizontal end of the movable baffle is movably clamped into the inside of the connecting chute, and a fixed baffle is fixedly installed on the upper side wall surface of the water grate body.

[0009] Preferably, the connecting guide rod is fixedly installed on the left side wall surface of the fixed baffle, the reciprocating lead screw is rotatably installed on the left side wall surface of the fixed baffle, and a connecting slide rod for limiting is fixedly installed on the left side wall surface of the fixed baffle.

[0010] Preferably, the outer wall of the connecting slide rod movably penetrates through the left and right wall surfaces of the vertical end of the movable baffle, and a fixed connecting plate for limiting is fixedly installed on the left side wall surface of the connecting slide rod.

[0011] Preferably, an elastic element is fixedly installed on the wall surfaces of the movable baffle and the fixed baffle close to each other, and the outer wall of the connecting slide rod movably passes through the inside of the elastic element.

[0012] Beneficial effects

[0013] The utility model provides a water turbine generator set volute water grate. It has the following beneficial effects:

[0014] 1. For the water turbine generator set volute water grate, during the use of the utility model, the water liquid passes through the drainage groove from the upper side of the water grate body and moves to the lower side position of the water grate body. The water liquid enters the inside of the sealed box body through the inside of the water inlet pipe, and then is discharged from the inside of the sealed box body through the inside of the drainage pipe, forming a circulating state. When the water liquid enters the sealed box body, it will contact the blades on the outer wall of the water wheel. The water wheel will drive the reciprocating lead screw to rotate under the limiting action of the connecting guide rod. Under the limiting action of the connecting guide rod, the moving push plate will first move in the right direction. The moving push plate will push the large sundries blocking the drainage groove to the right side position of the water grate body, reducing the risk of blockage and ensuring normal filtering work.

[0015] 2. For the water turbine generator set volute water grate, during the use of the utility model, the rightward movement of the moving push plate will bring the sundries into contact with the movable baffle. The movable baffle is forced to move to the right, and the elastic element is forced to compress and deform. As the movable baffle moves, the movable baffle will release the occlusion of the connecting through groove, and the sundries will enter the inside of the storage box body through the inside of the connecting through groove for storage, which can avoid the phenomenon of sundries accumulating on the upper side wall surface of the water grate body and reduce the risk of blockage. Description of the drawings

[0016] Figure 1 It is a three-dimensional view of the whole utility model;

[0017] Figure 2 It is a three-dimensional view of the water grate body of the utility model;

[0018] Figure 3 It isFigure 1 Enlarged view of point A.

[0019] Legend: 1. Main body of the water grate; 2. Sealed box body; 3. Water inlet pipe; 4. Drainage pipe; 5. Reciprocating lead screw; 6. Water wheel; 7. Connecting guide rod; 8. Connecting through groove; 9. Storage box body; 10. Connecting sliding groove; 11. Fixed baffle; 12. Movable baffle; 13. Moving push plate; 14. Connecting slide bar; 15. Fixed connecting plate; 16. Elastic element. Specific implementation mode

[0020] Example 1: The spiral case water intake grate of the water turbine generator set is as Figure 1 and Figure 2 shown, including the main body 1 of the water grate. A drainage groove penetrating its upper and lower wall surfaces is provided on the upper side wall surface of the main body 1 of the water grate. The upper side wall surface of the main body 1 of the water grate is fixedly installed with a sealed box body 2. The upper side wall surface of the sealed box body 2 is sealingly connected with a water inlet pipe 3. The rear end of the right side wall surface of the sealed box body 2 is sealingly connected with a drainage pipe 4. Check valves are arranged inside both the water inlet pipe 3 and the drainage pipe 4. The right side wall surface of the sealed box body 2 is rotationally installed in a sealed manner with a horizontally arranged reciprocating lead screw 5. The outer wall of the reciprocating lead screw 5 extends into the interior of the sealed box body 2. A water wheel 6 is fixedly installed on the outer wall of the reciprocating lead screw 5. Blades are arranged on the outer wall of the water wheel 6. The blades on the water wheel 6 correspond to the bottom wall surface of the water inlet pipe 3. A connectable guide rod 7 for limiting is fixedly installed on the right side wall surface of the sealed box body 2. The connecting guide rod 7 is horizontally arranged. A moving push plate 13 is movably installed on the upper side wall surface of the main body 1 of the water grate. The moving push plate 13 is threadedly connected with the reciprocating lead screw 5. The outer wall of the connecting guide rod 7 movably penetrates the left and right wall surfaces of the moving push plate 13. A storage mechanism is arranged on the main body 1 of the water grate.

[0021] During the use of this utility model, the water liquid passes through the drainage groove from the upper side of the main body 1 of the water grate and moves to the lower side position of the main body 1 of the water grate. The water liquid enters the interior of the sealed box body 2 through the interior of the water inlet pipe 3 and is then discharged from the interior of the sealed box body 2 through the interior of the drainage pipe 4, forming a circulating state. When the water liquid enters the sealed box body 2, it will contact the blades on the outer wall of the water wheel 6. The water wheel 6 will drive the reciprocating lead screw 5 to rotate under the force. Under the limiting action of the connecting guide rod 7, the moving push plate 13 will first move in the right direction. The moving push plate 13 will push the large sundries blocking the drainage groove to the right side position of the main body 1 of the water grate, reducing the risk of blockage.

[0022] Example 2: On the basis of Example 1, as Figure 1 , Figure 2 and Figure 3As shown in the figure, the storage mechanism includes a connecting through groove 8 and a storage box body 9. The connecting through groove 8 is opened at the right end of the upper side wall surface of the water grating main body 1, and the storage box body 9 is hermetically connected to the bottom wall surface of the water grating main body 1 at a position corresponding to the connecting through groove 8. The interiors of the connecting through groove 8 and the storage box body 9 are mutually communicated, and the bottom wall surface of the storage box body 9 is provided with drain holes distributed in a uniform state.

[0023] The storage mechanism further includes a movable baffle 12. The movable baffle 12 is integrally L-shaped and is movably installed inside the connecting through groove 8. A connecting sliding groove 10 for limiting is opened on the right side wall surface of the connecting through groove 8.

[0024] The horizontal end of the movable baffle 12 is adapted to the inside of the connecting sliding groove 10, and the horizontal end of the movable baffle 12 is movably clamped into the inside of the connecting sliding groove 10. A fixed baffle 11 is fixedly installed on the upper side wall surface of the water grating main body 1.

[0025] A connecting guide rod 7 is fixedly installed on the left side wall surface of the fixed baffle 11, a reciprocating lead screw 5 is rotatably installed on the left side wall surface of the fixed baffle 11, and a connecting sliding rod 14 for limiting is fixedly installed on the left side wall surface of the fixed baffle 11.

[0026] The outer wall of the connecting sliding rod 14 movably penetrates through the left and right wall surfaces of the vertical end of the movable baffle 12, and a fixed connecting plate 15 for limiting is fixedly installed on the left side wall surface of the connecting sliding rod 14.

[0027] Elastic elements 16 are fixedly installed on the wall surfaces of the movable baffle 12 and the fixed baffle 11 close to each other, and the outer wall of the connecting sliding rod 14 movably passes through the inside of the elastic elements 16.

[0028] During the use of this utility model, when the moving push plate 13 moves to the right, it will contact the sundries and the movable baffle 12. The movable baffle 12 is forced to move to the right, and the elastic elements 16 are forced to compress and deform. As the movable baffle 12 moves, the movable baffle 12 will release the occlusion of the connecting through groove 8, and the sundries will pass through the inside of the connecting through groove 8 and enter the inside of the storage box body 9 for storage, which can avoid the phenomenon of sundries accumulating on the upper side wall surface of the water grating main body 1.

[0029] The above shows and describes the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of this utility model. Without departing from the spirit and scope of this utility model, this utility model will have various changes and improvements, and these changes and improvements all fall within the scope of this utility model claimed. The scope of protection claimed by this utility model is defined by the appended claims and their equivalents.

Claims

1. A water intake grate for a hydro-turbine generator volute, comprising a water grate body (1), wherein the upper wall of the water grate body (1) is provided with a drainage groove penetrating the upper and lower walls thereof, and wherein: The upper side wall of the water grate body (1) is fixedly mounted on the sealed box body (2); the upper side wall of the sealed box body (2) is sealedly connected to a water inlet pipe (3); the rear side end of the right side wall of the sealed box body (2) is sealedly connected to a drainage pipe (4); both the water inlet pipe (3) and the drainage pipe (4) are provided with a one-way valve inside; a reciprocating screw (5) arranged in a horizontal state is rotatably mounted on the right side wall of the sealed box body (2) in a sealed manner; the outer wall of the reciprocating screw (5) extends into the interior of the sealed box body (2); and a water inlet pipe (3) is fixedly mounted on the outer wall of the reciprocating screw (5). The water wheel (6) is provided with blades on its outer wall, and the blades on the water wheel (6) correspond to the bottom wall of the water inlet pipe (3). A connecting guide rod (7) capable of limiting position is fixedly installed on the right wall of the sealing box (2), and the connecting guide rod (7) is arranged in a horizontal state. A movable push plate (13) is movably installed on the upper wall of the water grate body (1), and the movable push plate (13) and the reciprocating screw (5) are threadedly connected together. The outer wall of the connecting guide rod (7) movably penetrates the left and right walls of the movable push plate (13), and a storage mechanism is arranged on the water grate body (1).

2. The water intake grate of the volute of the hydro-generator set according to claim 1, characterized in that: The storage mechanism comprises a connecting groove (8) and a storage box (9); the connecting groove (8) is provided at the right end of the upper side wall of the water grate body (1); the storage box (9) is sealed and connected to the bottom wall of the water grate body (1) at a position corresponding to the connecting groove (8); the connecting groove (8) and the interior of the storage box (9) are mutually connected; and the bottom wall of the storage box (9) is provided with drainage holes which are evenly distributed.

3. The water intake grate of the volute of the hydro-generator set according to claim 2 is characterized in that: The storage mechanism further comprises a movable baffle (12) which is L-shaped as a whole and is movably mounted inside the connecting slot (8). A connecting slide groove (10) capable of limiting position is provided on the right side wall of the connecting slot (8).

4. The water intake grate of the volute of the hydro-generator set according to claim 3 is characterized by: The horizontal end of the movable baffle (12) is adapted to the interior of the connecting chute (10), and the horizontal end of the movable baffle (12) is movably inserted into the interior of the connecting chute (10). The upper side wall of the water grate body (1) is fixedly mounted with a fixed baffle (11).

5. The water intake grate of the volute of the hydro-generator set according to claim 4, characterized in that: The connecting guide rod (7) is fixedly mounted on the left side wall of the fixed baffle (11), the reciprocating screw (5) is rotatably mounted on the left side wall of the fixed baffle (11), and a connecting slide rod (14) capable of limiting position is fixedly mounted on the left side wall of the fixed baffle (11).

6. The water intake grate of the volute of the hydro-generator set according to claim 5, characterized in that: The outer wall of the connecting slide bar (14) movably penetrates the left and right wall surfaces of the vertical end of the movable baffle (12), and a fixed connecting plate (15) capable of limiting position is fixedly installed on the left wall surface of the connecting slide bar (14).

7. The water intake grate of the volute of the hydro-generator set according to claim 6, characterized in that: An elastic element (16) is fixedly mounted on the wall surface where the movable baffle (12) and the fixed baffle (11) are close to each other, and the outer wall of the connecting slide rod (14) movably passes through the inside of the elastic element (16).

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