Anti-rollover trash holding floating row for hydraulic power plant
By combining the floating box structure and pulley locking device, the rollover problem of traditional wastewater interceptor drift discharge in complex water flow environments is solved, and the stability and flexibility are improved, ensuring the safe operation of the hydropower plant.
Patent Information
- Application Number
- CN202421979139.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The traditional sewage and drift structure lacks flexibility and stability in complex water flow environments and is prone to overturning, resulting in equipment damage and unstable operation, affecting the normal operation of the power plant.
Using a combined structure consisting of a first floating box, a second floating box and a third floating box, the first floating box is fixed on the dam wall and is movable, the second floating box is connected by a connecting rope, and the third floating box can be flexibly installed on the side to provide additional buoyancy, combining pulleys and locking devices to enhance stability.
It improves the stability and flexibility of the wastewater evacuation in complex water flow environments, reduces the risk of rollover, reduces equipment maintenance costs, and ensures the safe and efficient operation of the power plant.
Smart Images
Figure CN223048004U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of water conservancy and hydropower equipment, and particularly relates to an anti-overturning trash rack floating row for a hydropower plant. Background Technique
[0002] During the operation of a hydropower plant, the trash rack floating row is an important facility to ensure the safe and efficient operation of the generator set. The traditional structure of the trash rack floating row is often composed of a single type of floating box, lacking flexibility and stability. Especially during the operation of the hydropower plant unit, the water flow rate is large and the velocity is fast in some local areas, resulting in problems such as partial floating rows being prone to overturning and damage. This will not only affect the trash interception effect, but also may lead to an increase in equipment maintenance costs and even affect the normal operation of the power plant.
[0003] The existing anti-overturning technologies mainly focus on enhancing the impact resistance of the floating box and increasing the self-weight of the floating box, but these measures often cannot fundamentally solve the problem of the floating box overturning. Especially when the floating box is in a relatively harsh water flow environment for a long time, there is still a great risk of overturning. In addition, the traditional floating box design is usually fixedly installed on the dam or other fixed structures, lacking flexibility and being difficult to be adjusted and optimized according to actual needs, resulting in insufficient adaptability in complex water flow environments.
[0004] Therefore, developing an anti-overturning trash rack floating row structure that can operate stably under complex water flow conditions and has good flexibility and adaptability has become an important requirement in the field of hydropower plants. Content of the Utility Model
[0005] The purpose of the utility model is to provide an anti-overturning trash rack floating row for a hydropower plant to solve the problems raised in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: an anti-overturning trash rack floating row for a hydropower plant, which is composed of a first floating box, a second floating box and a third floating box. The first floating box includes a first box body. A first guardrail is arranged on the top of the first box body. A first box door is arranged on the top of the first box body. A connecting block is arranged at the end of the first box body. A pulley is arranged on the connecting block. A winch is arranged on the connecting block. A first locking block is arranged on the upper surface of the first box body. A first U-shaped lock is arranged on the first locking block. The second floating box includes a second box body. A second guardrail is arranged on the top of the second box body. A second box door is arranged on the top of the second box body. A trash interception fence is arranged at the bottom of the second box body. A second locking block is arranged on the top of the second box body. A second U-shaped lock is arranged on each second locking block. The third floating box includes a third box body. A third box door is arranged on the top of the third box body. A plurality of connecting rods are fixed on the upper part of the third box body. The first floating box and the second floating box are connected by a connecting rope.
[0007] As a preferred embodiment of the present utility model, there are two rows of pulleys, which are connected to the rails installed on the dam wall. As a preferred embodiment of the present utility model, the pulleys are driven by a motor.
[0008] As a preferred embodiment of the present utility model, the first box body is provided with a plurality of first locking blocks.
[0009] As a preferred embodiment of the present utility model, the distance between the first U-shaped locks on the first locking blocks is the same as the distance between the winches.
[0010] As a preferred embodiment of the present utility model, the number of the second locking blocks on the second box body is two. As a preferred embodiment of the present utility model, first anti-collision pads are further provided on both side surfaces at the two ends of the second box body.
[0011] As a preferred embodiment of the present utility model, the second U-shaped lock is provided with a metal clip to fix the relative positions of the second floating box and the connecting rope.
[0012] As a preferred embodiment of the present utility model, the distance between the second U-shaped locks on the second locking blocks is the same as the distance between the winches.
[0013] As a preferred embodiment of the present utility model, a second anti-collision pad is further provided at the end of the third box body.
[0014] A kind of anti-overturning trash rack for hydropower plants proposed by the present utility model can effectively enhance the stability of the trash rack by adopting the combined structure of the first floating box, the second floating box and the third floating box. The third floating box can be flexibly installed on the side of the first floating box or the second floating box according to the actual water flow condition on site, providing additional buoyancy and further reducing the risk of overturning of the floating box under the impact of water flow. The first floating box is fixed on the dam wall and can move up and down along the wall, making the installation and maintenance of the trash rack more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is a front view of the present utility model;
[0017] Figure 3 is a top view of the present utility model;
[0018] Figure 4 is a schematic structural diagram of the first floating box of the present utility model;
[0019] Figure 5 is a front view of the first floating box of the present utility model;
[0020] Figure 6 is a top view of the first floating box of the present utility model;
[0021] Figure 7 This is a schematic structural view of the second floating box of the present utility model;
[0022] Figure 8 This is a front view of the second floating box of the present utility model;
[0023] Figure 9 This is a schematic structural view of the third floating box of the present utility model;
[0024] Wherein: 1. First floating box, 2. Second floating box, 3. Third floating box, 4. Connecting rope, 11. First box body, 12. First guardrail, 13. First box door, 14. First locking block, 15. First U-shaped lock, 16. Winch, 17. Connecting block, 18. Pulley, 21. Second box body, 22. Second box door, 23. Second guardrail, 24. Trash rack, 25. Second locking block, 26. Second U-shaped lock, 27. First anti-collision pad, 31. Third box body, 32. Third box door, 33. Second anti-collision pad, 34. Connecting rod. Specific embodiments
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] Please refer to Figures 1-9 , a specific implementation manner of the present utility model is:
[0027] As shown in Figure 1 、 2 、3, a trash rack for preventing side overturning in a hydropower plant is composed of a first floating box 1, a second floating box 2 and a third floating box 3. The first floating box 1 is fixed on the side dam walls and can move up and down along the walls. Multiple second floating boxes 2 can be placed between the two first floating boxes 1. The first floating box 1 and the second floating box 2 are connected by a connecting rope 4. The third floating box 3 can be installed on the side of any first floating box 1 or second floating box 2 to provide additional buoyancy for the installation side of the first floating box 1 and the second floating box 2, and reduce the risk of side overturning of the first floating box 1 and the second floating box 2.
[0028] As shown in Figure 4 、 5, as shown in Figures 6, the main body of the first floating box 1 is the first box body 11. There is a first guardrail 12 at the top edge of the first box body 11, a first box door 13 on the top of the first box body 11. The end of the first box body 11 is connected with a connecting block 17. There are two rows of pulleys 18 on the connecting block 17. The pulleys 18 are driven by a motor and are connected to the rails installed on the dam wall, and the lifting of the first floating box 1 can be controlled by the motor. On the side of the connecting block 17 close to the first box body 11, two winches 16 are installed. Connecting ropes 4 can be installed on the winches 16, and the retraction and release of the connecting ropes 4 are controlled by the winches 16. There are multiple first locking blocks 14 on the upper surface of the first box body 11. There are two first U-shaped locks 15 on each first locking block 14, and the distance between the two first U-shaped locks is the same as the distance between the two winches 16.
[0029] As Figure 7 , 8 shown, the main body of the second floating box 2 is the second box body 21. There are second guardrails 23 on both sides of the top of the second box body 21, a second box door 22 on the top of the second box body 21, a trash rack 24 at the bottom of the second box body 21. There are two second locking blocks 25 on the top of the second box body 21. There are two second U-shaped locks 26 on each second locking block 25, and the distance between the two second U-shaped locks 26 is the same as the distance between the two winches 16. The second U-shaped locks 26 are equipped with metal clips, which can clamp the passing connecting ropes 4 to fix the relative position between the second floating box 2 and the connecting ropes 4. First anti-collision pads 27 are provided on both ends of the side surface of the second box body 21.
[0030] As Figure 9 shown, the main body of the third floating box 3 is the third box body 31. There is a third box door 32 on the top of the third box body 31, a second anti-collision pad 33 at the end of the third box body 31. Multiple connecting rods 34 are fixed on the upper part of the third box body 31. The third floating box 3 is connected to the first floating box 1 and the second floating box 2 through the connecting rods 34.
[0031] In this embodiment, first, determine the installation position of the trash floating row, measure the length of the installation line of the trash floating row, and calculate the number of required second floating boxes 2; install rails on the dam wall at the designed position for installing the first floating box 1; install the first floating box 1 on the dam rails on both sides. The lifting of the first floating box 1 can assist in transporting the second floating box 2 and the third floating box 3; install the connecting rope 4 on the winch 16 of one end of the first floating box 1, install the second floating box 2 on the connecting rope 4, and fix it with the second U-shaped lock 26. Use the downtime of the generator set to pull the end of the connecting rope 4 to the winch 16 of the first floating box 1 on the other side for fixation; observe the water flow condition during the operation of the generator set, install the third floating box 3 at an appropriate position, and fix the connecting rod 34 to the first floating box 1 and the second floating box 2 with bolts; add counterweights to the floating boxes through the first box door 13, the second box door 22, and the third box door 32 to ensure the stability of the floating boxes during the operation of the unit.
[0032] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A hydropower plant anti-rollover pollution interception and floating discharge, characterized in that: The invention is composed of a first pontoon (1), a second pontoon (2) and a third pontoon (3), wherein the first pontoon (1) comprises a first box body (11), a first guardrail (12) is provided on the top of the first box body (11), a first box door (13) is provided on the top of the first box body (11), a connecting block (17) is provided at the end of the first box body (11), a pulley (18) is provided on the connecting block (17), two winches (16) are provided on the connecting block (17), a first locking block (14) is provided on the upper surface of the first box body (11), and two first U-shaped locks (15) are provided on the first locking block (14); the second pontoon (2) comprises a second box body (21), a second guardrail (23) is provided on the top of the second box body (21), a second box door (22) is provided on the top of the second box body (21), a trash fence (24) is provided on the bottom of the second box body (21), a second locking block (25) is provided on the top of the second box body (21), and each second locking block (25) is provided with two second U-shaped locks (26); the third buoyancy box (3) includes a third box body (31), a third box door (32) is provided on the top of the third box body (31), and a plurality of connecting rods (34) are fixed to the upper part of the third box body (31); the first buoyancy box (1) and the second buoyancy box (2) are connected by a connecting rope (4).
2. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The pulleys (18) are arranged in two rows and connected to tracks installed on the dam wall.
3. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The pulley (18) is driven by a motor.
4. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The first box body (11) is provided with a plurality of first locking blocks (14).
5. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The distance between the two first U-shaped locks on the first locking block (14) is the same as the distance between the two winches (16).
6. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The number of the second locking blocks (25) on the second box body (21) is two.
7. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: First anti-collision pads (27) are also provided on the side surfaces at both ends of the second box body (21).
8. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The second U-shaped lock (26) is provided with a metal clip, which can fix the relative position of the second buoyancy box (2) and the connecting rope (4).
9. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1 is characterized in that: The distance between the two second U-shaped locks (26) on the second locking block (25) is the same as the distance between the two winches (16).
10. The anti-rollover pollution-blocking and floating device for a hydropower plant according to claim 1, characterized in that: A second anti-collision pad (33) is also provided at the end of the third box body (31).