A water turbine

Abstract

The present invention relates to the technical field of hydroelectric turbines, and specifically to a turbine. An embedded spiral ring is slidably connected to the inner side of the water inlet of the turbine volute, and the outer wall of the embedded spiral ring is provided with an external thread; a fixed thread is provided at the bottom end of the inner wall of the water inlet, and a limiting thread is provided at the top end of the inner wall of the water inlet. A positioning block is fixedly connected to the bottom end of the fixed thread, and the positioning block is located on the inner side of the water inlet; the fixed thread matches the embedded spiral ring, and the limiting thread matches the embedded spiral ring. A sealing cylinder is provided in the middle of the volute, and the sealing cylinder is consistent with the center of the volute. A first sealing ring is fixedly connected to the bottom end of the outer side of the sealing cylinder, and a second sealing ring is fixedly connected to the top end of the first sealing ring, and the second sealing ring is located at the top end of the outer side of the sealing cylinder. The situation that the flange near the volute breaks due to uneven force is reduced, the dust near the guide bearing and the control ring is effectively reduced, the normal operation of the turbine is guaranteed, maintenance is reduced, and work efficiency is increased.

Description

Technical Field

[0001] The invention relates to the technical field of hydroelectric turbines, and in particular to a water turbine. Background Art

[0002] In the prior art, a water turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It belongs to a turbine machine among fluid machines. In areas with abundant water resources, water turbines can be used to generate electricity. The existing water turbine includes a volute, and a water inlet is provided on one side of the bottom end of the volute. A plurality of fixings are fixedly connected to the outer periphery of the volute to limit and fix the water turbine as a whole. A control ring is fixedly connected to the middle of the volute, and a guide bearing is fixedly connected to the middle of the control ring. When water enters the inner side of the water turbine from the water inlet, it drives the control ring and the guide bearing to rotate, thereby generating mechanical kinetic energy. The water energy can be converted into mechanical kinetic energy through the control ring and the guide bearing.

[0003] The existing water turbine has certain problems when in use. Due to the large size and heavy weight of the water turbine, it is complicated and cumbersome to install, and it is difficult to align the water inlet of the water turbine with the connecting pipe. After the water turbine is installed, the flange near the water inlet breaks due to uneven force, which makes it difficult to repair and increases the economic cost. There is also a problem that there is no sealing device on the outside of the guide bearing. For this reason, we propose a water turbine. Summary of the invention

[0004] The purpose of the present invention is to provide a water turbine in view of the above-mentioned shortcomings, which reduces the fracture of the flange near the volute water inlet due to uneven force and is conducive to aligning the water inlet of the water turbine with the connecting pipe.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water turbine, comprising a volute, a water inlet is arranged on one side of the bottom end of the volute, a control ring is fixedly connected in the middle of the volute, a guide bearing is fixedly connected in the middle of the control ring, and the inner side of the water inlet is slidably connected with an embedded spiral ring, and the outer wall of the embedded spiral ring is provided with an external thread; a fixing thread is arranged at the bottom end of the inner wall of the water inlet, a limiting thread is arranged at the top end of the inner wall of the water inlet, a positioning block is fixedly connected at the bottom end of the fixing thread, and the positioning block is located on the inner side of the water inlet; the fixing thread matches the embedded spiral ring, and the limiting thread matches the embedded spiral ring.

[0006] In the above scheme,

[0007] Arc-shaped protrusions are evenly arranged around the positioning column.

[0008] A sealing cylinder is provided in the middle of the volute, and the sealing cylinder is consistent with the center of the volute, the outer bottom end of the sealing cylinder is fixedly connected with a first sealing ring, the top end of the first sealing ring is fixedly connected with a second sealing ring, and the second sealing ring is located at the top end of the outer side of the sealing cylinder.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The practicability of the turbine is greatly increased by the arrangement of the embedded screw ring and the positioning column. The water inlet of the turbine can be quickly aligned with the connecting pipe by the coordinated use of the embedded screw ring and the positioning column, making the installation smoother. At the same time, the embedded screw ring can be stored inside the water inlet, which will not affect the normal use of the turbine. The operation is simple and quick, which reduces the fracture of the flange near the volute due to uneven force and reduces the economic cost.

[0011] 2. The setting of the sealing mechanism effectively reduces the dust near the guide bearing and the control ring. Through the coordinated use of the sealing mechanism, after the turbine is connected to the bearing, the bearing housing and the sealing cylinder are sealed to effectively reduce the entry of dust, ensure the normal operation of the guide bearing and the control ring, and increase work efficiency.

[0012] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a side sectional view of the water inlet, fixed thread, positioning block and embedded screw ring of the present invention.

[0015] Figure 3 It is a bottom cross-sectional view of the water inlet, the embedded spiral ring, and the positioning column of the present invention.

[0016] Figure 4 It is a stereoscopic diagram of the sealing cylinder, the first sealing ring and the second sealing ring of the present invention. DETAILED DESCRIPTION

[0017] See also Figure 1-4 The names of the parts are as follows: 1. Volute; 2. Fixing piece; 3. Control ring; 4. Guide bearing; 5. Sealing cylinder; 6. Water inlet; 7. Fixing thread; 8. Positioning block; 9. Embedded screw ring; 10. Positioning column; 11. Eaves; 12. Limiting thread; 13. First sealing ring; 14. Second sealing ring.

[0018] See also Figure 1 A water turbine includes a volute 1, a water inlet 6 is provided at one side of the bottom end of the volute 1, and a plurality of fixing members 2 (fixing ears) are fixedly connected to the outer periphery of the volute 1. A control ring 3 is fixedly connected to the middle of the volute 1, and a guide bearing 4 is fixedly connected to the middle of the control ring 3.

[0019] See also Figure 2 , 3The bottom end of the water inlet 6 is fixedly connected with a ledge 11, the inner side of the water inlet 6 is slidably connected with an embedded screw ring 9, and the outer wall of the embedded screw ring 9 is provided with an external thread, and the bottom end of the inner wall of the water inlet 6 is provided with a fixed thread 7, and the fixed thread 7 matches the embedded screw ring 9. By rotating the embedded screw ring 9, the external thread on the outer side of the embedded screw ring 9 rotates with the fixed thread 7, so that the embedded screw ring 9 is fixed at the position of the fixed thread 7 by thread rotation, and a limiting thread 12 is provided at the top of the inner wall of the water inlet 6, and the limiting thread 12 matches the embedded screw ring 9. By rotating the embedded screw ring 9, the external thread on the outer side of the embedded screw ring 9 rotates with the limiting thread 12, so that the embedded screw ring 9 is fixed at the position of the limiting thread 12 by thread rotation.

[0020] The bottom end of the fixed thread 7 is fixedly connected with a positioning block 8, and the positioning block 8 is located on the inner side of the water inlet 6. The embedded screw ring 9 can be limited by the setting of the positioning block 8, so that the embedded screw ring 9 will not separate from the water inlet 6. A plurality of positioning columns 10 are evenly distributed on the edge of the embedded screw ring 9, and arc-shaped protrusions are evenly arranged around the positioning columns 10. The arc-shaped protrusions around the positioning columns 10 can prevent the rotation of the positioning columns 10, so that the water inlet 6 is more accurate during installation. The cross-section of the embedded screw ring 9 is a circular ring, and the outer circle diameter of the embedded screw ring 9 is consistent with the inner circle diameter of the eaves 11, which increases the practicability of the embedded screw ring 9 and reduces the situation where there is a gap between the embedded screw ring 9 and the water inlet 6.

[0021] When the turbine is installed, it is only necessary to rotate the embedded screw ring 9 so that the embedded screw ring 9 rotates through the thread, and rotate the embedded screw ring 9 from the position of the limiting thread 12 to the position of the fixing thread 7, so that the positioning column 10 at the bottom end of the embedded screw ring 9 is located on the outside of the water inlet 6, and then align the positioning column 10 with the required installation position, so that the positioning column 10 is deeply inserted into the groove at the installation position, so that the groove and the positioning column 10 are tightly fitted, and then the water inlet 6 is fixed by the flange connection, which reduces the situation that the flange near the volute 1 breaks due to uneven force. At the same time, the embedded screw ring 9 can be received into the inner side of the water inlet 6, which will not affect the normal use of the turbine, and the operation is simple and quick.

[0022] See also Figure 1 , 4 A sealing mechanism is provided in the middle of the volute 1, and the sealing mechanism includes a sealing cylinder 5, which is located in the middle position of the volute 1, and the sealing cylinder 5 is consistent with the center of the volute 1, and a first sealing ring 13 is fixedly connected to the bottom end of the outer side of the sealing cylinder 5, and a second sealing ring 14 is fixedly connected to the top of the first sealing ring 13, and the second sealing ring 14 is located at the top end of the outer side of the sealing cylinder 5. The first sealing ring 13 and the second sealing ring 14 are made of rubber material. The first sealing ring 13 and the second sealing ring 14 can be deformed to a certain extent by the force, and will return to the original state when the force is lost, and have waterproof performance.

[0023] When the guide bearing 4 and the control ring 3 connect the bearing and the bearing housing, the bearing housing will fit tightly against the sealing cylinder 5, and the first sealing ring 13 and the second sealing ring 14 on the outside of the sealing cylinder 5 will be deformed, thereby effectively isolating the gap between the sealing cylinder 5 and the bearing housing, thereby effectively reducing the entry of dust or solid particles into the inner side of the guide bearing 4.

[0024] Working principle and usage process: When the turbine is installed, it is only necessary to rotate the embedded screw ring 9 so that the embedded screw ring 9 rotates through the thread, and rotate the embedded screw ring 9 from the position of the limiting thread 12 to the position of the fixed thread 7, so that the positioning column 10 at the bottom end of the embedded screw ring 9 is located on the outside of the water inlet 6, and then align the positioning column 10 with the required installation position, so that the positioning column 10 is deeply inserted into the groove at the installation position, so that the groove and the positioning column 10 are tightly fitted, and then the water inlet 6 is fixed by the flange connection, which reduces the situation where the flange near the volute 1 breaks due to uneven force. At the same time, the embedded screw ring 9 can be received into the inner side of the water inlet 6, which will not affect the normal use of the turbine, and the operation is simple and quick.

[0025] The above description is only a specific implementation mode of the present invention, and various examples do not constitute a limitation on the essential content of the present invention.

Claims

1. A water turbine, comprising a volute (1), a water inlet (6) being provided at one side of the bottom end of the volute (1), a control ring (3) being fixedly connected in the middle of the volute (1), and a guide bearing (4) being fixedly connected in the middle of the control ring (3), characterized in that An embedded screw ring (9) is slidably connected to the inner side of the water inlet (6), and an outer wall of the embedded screw ring (9) is provided with an external thread; a fixing thread (7) is provided at the bottom end of the inner wall of the water inlet (6), and a limiting thread (12) is provided at the top end of the inner wall of the water inlet (6); a positioning block (8) is fixedly connected to the bottom end of the fixing thread (7), and the positioning block (8) is located on the inner side of the water inlet (6); the fixing thread (7) matches the embedded screw ring (9), and the limiting thread (12) matches the embedded screw ring (9).

2. The water turbine according to claim 1, characterized in that Arc-shaped protrusions are evenly arranged around the positioning column (10).

3. The water turbine according to claim 1, characterized in that A sealing cylinder (5) is provided in the middle of the volute (1), and the sealing cylinder (5) and the volute (1) have the same center of circle, a first sealing ring (13) is fixedly connected to the bottom end of the outer side of the sealing cylinder (5), a second sealing ring (14) is fixedly connected to the top end of the first sealing ring (13), and the second sealing ring (14) is located at the top end of the outer side of the sealing cylinder (5).

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