A rubber water-stopping spray device for the steel gate of the Yellow River diversion gate

Abstract

This utility model belongs to the technical field of water conservancy engineering devices, specifically relating to a rubber water-stopping spray device for a steel gate of the Yellow River diversion project. The rubber water-stopping spray device for the steel gate of the Yellow River diversion project described in this utility model includes a water pump for extracting the spraying medium, with a floating inlet at the end of the water pump's inlet pipe; a water storage tank for settling the spraying medium; a booster spray pump, a low-water-level sensor, and a high-water-level sensor for the rubber water-stopping spraying structure, with a spray pipe connected to the spraying end of the booster spray pump; a mud-guiding plate for silt treatment and re-storage; the outlet pipe of the water pump is connected to the inside of the water storage tank, the booster spray pump is located inside the water storage tank, and the low-water-level sensor and high-water-level sensor are installed inside the water storage tank; the mud-guiding plate is set at an inclined angle at the bottom of the water storage tank. The rubber water-stopping spray device for the steel gate of the Yellow River diversion project provided by this utility model reduces economic costs, increases the service life of the rubber water-stopping system, and reduces safety hazards.

Description

Technical Field

[0001] This utility model belongs to the technical field of water conservancy engineering devices, specifically relating to a rubber water-stopping spray device for a Yellow River diversion gate steel gate. Background Technology

[0002] The working gates of the Yellow River Diversion Gate in Shandong Province are designed with high water heads, and their flow capacity is often controlled by the opening degree. They are frequently opened and closed and must operate in a dynamic water environment. Gate leakage not only wastes water resources, but also, especially during high-head operation, can easily lead to gate vibration, cavitation of embedded parts, and wear. This will affect the safe flood control of the entire diversion gate and the integrity of the structure, increasing the probability of accidents. To prevent leakage between the gate and the gate slot, a waterstop is installed on the gate leaf, and a stainless steel seat plate is installed in the gate slot to ensure no leakage when the gate is closed. Depending on the location and function, the bottom waterstop is generally arranged on the panel side, while the side waterstop can be installed on the panel side or the back plate side of the gate, respectively referred to as the upstream waterstop or downstream waterstop. Most Yellow River Diversion Gates are submerged gates, and a top waterstop and breast wall closure are also required. When the gate opening is high and segmented gates are used, an intermediate waterstop must be installed between each segment.

[0003] Currently, commonly used water-stopping types include knife-shaped bottom waterstops, and P-shaped side and top waterstops; while square-headed P-shaped and L-shaped waterstops are commonly used for arc-shaped gates. Waterstops are typically clamped with pressure plates and fixed to the gate leaf with bolts. Considering that the bending deformation of the gate leaf under stress may cause the waterstop to detach from the stainless steel base plate, the design requires a pre-compression of 2-4 mm between the waterstop and the stainless steel base plate. During the culvert reconstruction (phase one) construction, it was found that even if the verticality of the gate slot was controlled within the error range after pouring, problems such as excessive deformation of the rubber waterstop and difficulty in opening and closing the gate could still occur due to the pre-compression of the waterstop being only at the millimeter level.

[0004] The main material of rubber sealants is vulcanized rubber, which has good elasticity and wear resistance in everyday environments. However, under constant alternation of wet and dry conditions and temperature changes, oxygen in the air reacts with rubber molecules in a free radical chain reaction, causing the molecular chains to break or become excessively cross-linked. Simultaneously, the rubber absorbs light energy, which can trigger or accelerate oxidation chain reactions, leading to accelerated aging. Therefore, the actual service life of rubber sealants is difficult to generalize and varies significantly depending on the material formulation and the environment in which they are used.

[0005] To reduce the aging process and frictional resistance of rubber waterstops, corresponding rubber waterstop spraying devices have emerged in China and are already in operation in other river basins. Examples include the outlet gate of the Linyi An'di Reservoir, the spillway gate of the Jilin Xiaoshan Hydropower Station, the spillway gate of the Lijiang Liyuan Hydropower Station, and the working gate of the Cao'e River Dam in Zhejiang. However, these sluice gates mostly use arc-shaped gates, and the water quality in these environments is relatively good, with clean water being the primary spraying medium. The main function of this device is to reduce the frictional resistance of the rubber waterstops when opening and closing the gates, thereby reducing the load on the gate hoist.

[0006] However, in the specific environment of the Yellow River Diversion Gate in Shandong, the water diversion conditions have changed with the operation of the Xiaolangdi Reservoir, resulting in a drop in water level at the same flow rate. This causes the gate top waterstop, which is not in contact with the water body year-round, to be exposed to air and sunlight for extended periods. Compared to waterstops in other locations, this leads to accelerated aging, manifested as increased hardness and loss of elasticity. Furthermore, the Yellow River has a high sediment content, and fine sand particles in the sediment are adsorbed onto the rubber waterstop surface under the action of electrostatic force or the mechanical meshing force of surface protrusions, and their Shore hardness is much higher than that of the waterstop material. When the Yellow River Diversion Gate operates at low to medium water levels for extended periods, the upper part of the gate side waterstop is essentially not in contact with the water body. Under pre-pressure, the waterstop experiences hard friction with the stainless steel base plate in sandy conditions, causing rubber damage and easily leading to leakage problems, thus recurring the aforementioned safety risks.

[0007] Given the inherent properties of rubber materials and their performance in the specific application environment of the Yellow River Diversion Gate, it is necessary to conduct in-depth research on the rubber waterstops used in the steel gates of the Yellow River Diversion Gate in Shandong. Specifically, this includes developing corresponding spraying devices, taking effective measures to slow down the environmental aging process of rubber, flush away fine sand deposits, and reduce the risk of freezing damage, thereby significantly improving the reliability of the waterstop system and providing optimized solutions for subsequent culvert reconstruction projects and the operation and maintenance of rubber waterstops. Utility Model Content

[0008] The technical problem to be solved by this utility model is to overcome the above-mentioned defects in the existing technology and provide a rubber water-stopping spray device for the steel gate of the Yellow River diversion gate, which reduces economic costs, increases the service life of the rubber water stop, and reduces safety hazards.

[0009] The rubber water-stopping spray device for the Yellow River diversion gate steel gate of this utility model includes a spray medium extraction structure, a spray medium settling structure, a rubber water-stopping spray structure, and a silt treatment and re-storage structure. The spray medium extraction structure includes a water inlet pump, and a floating water inlet is provided at the end of the water inlet pipe of the water inlet pump; the spray medium settling structure includes a water storage tank; the rubber water-stopping spray structure includes a booster spray pump, a low water level sensor, and a high water level sensor, and a spray pipe is connected to the spray end of the booster spray pump; the silt treatment and re-storage structure includes a mud guide plate.

[0010] The outlet pipe of the inlet pump is connected to the inside of the water storage tank. The booster spray pump is located inside the water storage tank. The water storage tank is equipped with low water level sensors and high water level sensors. The mud guide plate is set at an inclined angle at the bottom of the water storage tank.

[0011] The mud guide plate is set at an angle of 15° to the bottom of the water storage tank.

[0012] One end of the mud guide plate is close to the inside of the water storage tank, and the corresponding position on the other end of the water storage tank is equipped with a drain outlet.

[0013] The water inlet pipe of the water pump is a fixed inlet pipe, nested with a flexible hose at one end. The other end of the flexible hose connects to a floating inlet, which is located on the underwater portion of a floating platform, which is fitted onto the other end of the flexible hose. The floating inlet has a filtration function. This filtration inlet is a floating inlet, and to adapt to seasonal changes in the Yellow River's water level, a rotatable stainless steel flexible hose connects the floating inlet to the water pump inlet pipe.

[0014] The water inlet pump is connected to the water outlet pipe at its outlet end, and the water outlet pipe is connected to the water outlet of the water inlet pump. The water outlet of the water inlet pump is located inside the water storage tank.

[0015] A triangular bracket is fixed to the inner wall of the water storage tank, and a booster spray pump is fixed to the bracket. The booster spray pump is equipped with a booster spray pump inlet pipe and a booster spray pump outlet pipe. The booster spray pump inlet pipe is inside the water storage tank, and its end is flush with the low water level sensor. The booster spray pump outlet pipe passes through the top of the water storage tank and connects to the external spray pipe. The spray pipe has a double row of pipes, each equipped with multiple nozzles. The spraying time can be adjusted automatically or manually. Spraying begins after settling is completed and stops when the water level drops to the low water level sensor. The booster spray pump is installed inside the water storage tank.

[0016] The high water level sensor is set at the same position as the inlet of the booster spray pump.

[0017] The mud guide plates are laid flat at an inclined angle at the bottom of the water storage tank and fixed in a high-low state by a support frame. The low water level sensor is fixed at the high end of the mud guide plates.

[0018] The support frame is a tripod, fixed to the bottom of the water tank.

[0019] The water inlet pump is installed in a waterproof and windproof device. The water inlet pump is fixed inside by a welded steel frame, and the six sides are surrounded by waterproof and windproof materials.

[0020] The sedimentation of the spraying medium can be selected according to seasonal changes, either by natural sedimentation or by flocculant-accelerated sedimentation. The inlet pump is installed outside the water storage tank, and a waterproof and windproof device is installed on the outside.

[0021] The silt treatment and re-storage are carried out by the mud guide plate, the sewage outlet, and the high water level sensor and low water level sensor. The mud guide plate is set at the bottom of the water tank, and the sewage outlet is at the bottom of the mud guide plate. When the water level in the water tank drops to the low water level sensor, the water pump starts to work. When the water level rises to the high water level sensor, the water pump stops working.

[0022] The operation time of the booster spray pump is controlled by the high water level sensor, the low water level sensor, and manual operation. In order to prevent the booster spray pump from sucking in the mud and sand at the bottom of the water tank, the inlet of the booster spray pump inlet pipe is set as a floating inlet that can change with the water level. The start and end time of the booster spray pump operation is between the drop of the water level in the water tank from the high water level sensor to the low water level sensor.

[0023] The working steps of the rubber water-stopping spray device for the steel gate of the Yellow River diversion gate of this utility model include:

[0024] (1) Spraying medium extraction: The spraying medium used is Yellow River water. The spraying medium is extracted by an inlet pump installed outside the water storage tank. In order to avoid the impact of Yellow River water level changes in summer and winter and floating objects at the Yellow River diversion gate on the normal operation of the inlet pump, a floating inlet with a filtration function is set at the end of the inlet pipe.

[0025] (2) Settling of spraying medium: Since the Yellow River contains a large amount of silt, it is unreasonable to use the spraying medium as soon as it is taken. The extracted spraying medium should be allowed to settle naturally or be accelerated to settle with flocculants so that it meets the spraying standard before spraying the rubber waterstop.

[0026] (3) Rubber water stop spraying: The rubber water stop spraying is carried out by a booster spray pump and a spray pipe equipped with double rows of multi-nozzle nozzles. The spraying time is adjusted by both automatic and manual methods. The spraying work starts after the settling is completed and stops when the water level drops to the low water level sensor.

[0027] (4) Sediment treatment and re-storage: The sediment after settling slides down the slope of the guide plate to the sewage outlet under the action of gravity. The sediment at the bottom is cleaned manually or by flushing with the water inlet pipe at the top of the water tank.

[0028] Compared with the prior art, the beneficial effects of this utility model are:

[0029] (1) The rubber water-stopping spray device of the Yellow River diversion gate steel gate of this utility model extracts surface water with low sand content through the floating water inlet. Combined with the 15° inclined mud guide plate in the water storage tank and the mud and sand directional drainage structure of the sewage outlet, it effectively solves the problems of nozzle blockage and water pump wear caused by the sedimentation of Yellow River cement and sand. The settling efficiency reaches more than 92%, which significantly reduces the equipment maintenance frequency.

[0030] (2) The rubber water-stopping spray device of the Yellow River diversion gate steel gate of this utility model adopts a double-row spray pipe and multi-nozzle layout. The booster spray pump provides stable water pressure to ensure that the water flow fully covers the long-term exposed areas such as the top water stop and the upper section of the side water stop of the gate, flushing away the attached fine sand and delaying the aging of the rubber, avoiding hard friction damage under sand-containing working conditions.

[0031] (3) The rubber water-stopping spray device of the Yellow River diversion gate steel gate of this utility model is based on the linkage control of low water level sensor and high water level sensor (which are flush with / level with the pump inlet end respectively), automatically starts and stops the water pump, reduces the frequency of water replenishment while ensuring continuous spraying, saves 40% of water compared with traditional devices, and realizes the recycling of sedimentation clean water. Attached Figure Description

[0032] Figure 1 A schematic diagram of the rubber water-stopping spray device for the steel gate of the Yellow River diversion gate;

[0033] Figure 2 This is a schematic diagram of the spray pipe structure;

[0034] Figure 3 A schematic diagram of the water level sensor installation;

[0035] In the diagram: 1. Water storage tank; 2. Inlet pump outlet pipe; 3. Inlet pump; 4. Inlet pump inlet pipe; 5. Floating inlet; 6. Sewage outlet; 7. Mud guide plate; 8. Low water level sensor; 9. Booster spray pump inlet pipe; 10. High water level sensor; 11. Booster spray pump; 12. Spray pipe; 13. Inlet pump outlet; 14. Booster spray pump outlet pipe; 15. Sprinkler head; 16. Floating platform; 17. Hose; 18. Support frame; 19. Waterproof and windproof device; 20. Triangular bracket. Detailed Implementation

[0036] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Where this utility model is not exhaustive, existing technologies can be used.

[0039] Example 1

[0040] like Figure 1 As shown, the rubber water-stopping spray device for the Yellow River diversion gate includes a spray medium extraction structure, a spray medium settling structure, a rubber water-stopping spray structure, and a silt treatment and re-storage structure. The spray medium extraction structure includes an inlet pump 3, with a floating inlet 5 at the end of the inlet pipe of the inlet pump 3. The spray medium settling structure includes a water storage tank 1. The rubber water-stopping spray structure includes a booster spray pump 11, a low water level sensor 8, and a high water level sensor 10. The spray end of the booster spray pump 11 is connected to a spray pipe 12. The silt treatment and re-storage structure includes a mud guide plate 7.

[0041] The outlet pipe of the inlet pump 3 is connected to the inside of the water storage tank 1. The booster spray pump 11 is installed inside the water storage tank 1. The water storage tank 1 is equipped with a low water level sensor 8 and a high water level sensor 10. The mud guide plate 7 is installed at an inclined angle at the bottom of the water storage tank 1.

[0042] The mud guide plate 7 is set at an angle of 15° to the bottom of the water storage tank 1.

[0043] One end of the mud guide plate 7 is close to the inside of the water storage tank 1, and the corresponding position on the other end of the water storage tank 1 is provided with a drain outlet 6.

[0044] The inlet pipe of the water pump 3 is a fixed inlet pipe 4, which is nested with a flexible hose 17 at one end. The other end of the flexible hose 17 is connected to a floating inlet 5, which is located on the underwater part of the floating platform 16, which is fitted onto the other end of the flexible hose 17. The floating inlet 5 has a filtration function. The inlet with the filtration function is the floating inlet 5. To adapt to the changes in the Yellow River water level in different seasons, a rotatable stainless steel flexible hose 17 is connected between the floating inlet 5 and the inlet pipe 4.

[0045] The outlet end of the water inlet pump 3 is connected to the water inlet pump outlet pipe 2, which is connected to the water inlet pump outlet 13. The water inlet pump outlet 13 is located inside the water storage tank 1.

[0046] A triangular bracket 20 is fixed on the inner wall of the water storage tank 1. The booster spray pump 11 is fixed on the triangular bracket 20. The booster spray pump 11 is equipped with a booster spray pump inlet pipe 9 and a booster spray pump outlet pipe 14. The booster spray pump inlet pipe 9 is inside the water storage tank 1 and its end is flush with the low water level sensor 8. The booster spray pump outlet pipe 14 passes through the top of the water storage tank 1 and is connected to the external spray pipe 12.

[0047] like Figure 2 As shown, the spray pipe 12 is equipped with a double row of pipes, each with multiple nozzles 15. The spraying time can be adjusted automatically or manually. Spraying begins after settling is completed and stops when the water level drops to the low water level sensor. The booster spray pump is installed inside the water storage tank.

[0048] like Figure 3 As shown, the high water level sensor 10 is set at the same position as the water inlet of the booster spray pump 11.

[0049] The mud guide plate 7 is laid flat at an inclined angle at the bottom of the water storage tank 1 and is fixed in a high and low state by the support frame 18. The low water level sensor 8 is fixed at the high state end of the mud guide plate 7.

[0050] The support frame 18 is a tripod, which is fixed to the bottom of the water storage tank 1.

[0051] The water inlet pump 3 is installed inside the waterproof and windproof device 19. The water inlet pump 3 is fixed inside by a welded steel frame, and its six sides are surrounded by waterproof and windproof material. The waterproof and windproof device 19 is made of galvanized steel plate.

[0052] The sedimentation of the spraying medium can be selected according to seasonal changes, either by natural sedimentation or by flocculant-accelerated sedimentation. The inlet pump 3 is installed outside the water storage tank 1, and a waterproof and windproof device 19 is installed on the outside.

[0053] The silt treatment and re-storage are carried out by the mud guide plate 7, the sewage outlet 6, the high water level sensor 10, and the low water level sensor 8. The mud guide plate 7 is located at the bottom of the water storage tank 1, and the sewage outlet 6 is at the bottom of the mud guide plate 7. When the water level in the water storage tank drops to the low water level sensor 8, the water inlet pump 3 starts to work. When the water level rises to the high water level sensor 10, the water inlet pump 3 stops working.

[0054] The operation time of the booster spray pump 11 is controlled by the high water level sensor 10, the low water level sensor 8, and manual operation. In order to prevent the booster spray pump 11 from sucking in the mud and sand at the bottom of the water storage tank 1, the inlet of the water inlet pipe of the booster spray pump 11 is set as a floating inlet 5 that can change with the water level. The start and end time of the operation of the booster spray pump 11 is between the water level in the water storage tank dropping from the high water level sensor 10 to the low water level sensor 8.

[0055] The rubber water-stopping spray device of the Yellow River diversion gate steel gate shall be operated according to the following working steps:

[0056] (1) Spraying medium extraction: The spraying medium used is Yellow River water. The spraying medium is extracted by the water pump 3 installed outside the water storage tank 1. In order to avoid the impact of the Yellow River water level changes in summer and winter and the floating objects at the Yellow River diversion gate on the normal operation of the water pump 3, a floating water inlet 5 with a filtering function is set at the end of the water pump inlet pipe 4.

[0057] (2) Settling of spraying medium: Since the Yellow River contains a large amount of silt, it is unreasonable to use the spraying medium as soon as it is taken. The extracted spraying medium should be allowed to settle naturally or be accelerated to settle with flocculants so that it meets the spraying standard before spraying the rubber waterstop.

[0058] (3) Rubber water stop spraying: The rubber water stop spraying is carried out by booster spray pump 11 and spray pipe 12 equipped with double row of multi-nozzle head. The spraying is adjusted by both automatic and manual methods. The spraying work starts after the settling is completed. When the water level drops to the low water level sensor 8, the spraying work stops.

[0059] (4) Sediment treatment and re-storage: The sediment after settling slides down the slope of the guide plate 7 to the sewage outlet 6 under the action of gravity. The sediment at the bottom is cleaned manually or by flushing and cleaning the sediment through the water inlet pipe at the top of the water storage tank 1.

[0060] Example 2

[0061] like Figure 1-3 As shown, the rubber water-stopping spray device of the Yellow River diversion gate steel gate is used to extract the spraying medium by the water inlet pump 3, the floating water inlet 5, the water inlet pump outlet pipe 2 and the water inlet pump inlet pipe 4.

[0062] The settling of the sprayed medium takes place in water storage tank 1;

[0063] The rubber water stop spraying is carried out by a booster spray pump 11, a spray pipe 12 equipped with double rows of multi-nozzle nozzles and a booster spray pump inlet pipe 9. The spraying time is adjusted by both automatic and manual methods. The spraying work starts after the settling is completed. When the water level drops to the low water level sensor 8, the spraying work stops. The booster spray pump 11 is installed inside the water storage tank 1.

[0064] The silt treatment and re-storage are carried out by the mud guide plate 7, the sewage outlet 6, the low water level sensor 8, and the high water level sensor 10. The mud guide plate 7 is located at the bottom of the water storage tank 1, and the sewage outlet 6 is located at the bottom of the mud guide plate 7. When the water level in the water storage tank 1 drops to the low water level sensor 8, the water inlet pump 3 starts to work. When the water level rises to the high water level sensor 10, the water inlet pump 3 stops working.

[0065] Example 3

[0066] Based on Example 2, in order to facilitate efficient and rapid cleaning of the silt generated after the settling of the spray medium and to prevent the inlet pipe 9 of the booster spray pump from sucking in the silt after the spray medium has settled, a guide plate 7 with a slope of 15° is installed at the bottom of the water storage tank 1, and a drain outlet 6 is installed at the bottom of the guide plate 7. The silt in the spray medium accumulates at the drain outlet 6 under its own weight and the slope of the guide plate 7. During subsequent cleaning, the silt at the bottom is quickly flushed out by running the inlet pump 3.

[0067] Example 4

[0068] Based on Example 3, the operating time of the booster spray pump 11 is controlled by the low water level sensor 8, the high water level sensor 10, and the spray pressure of the booster spray pump 11. In addition, manual intervention is also possible. To prevent the booster spray pump 11 from sucking in the mud and sand at the bottom of the water storage tank 1, the hose 17 is set as a rubber hose that can change with the water level. The start and end time of the booster spray pump 11 is between the water level in the water storage tank 1 dropping from the high water level sensor 10 to the low water level sensor 8.

[0069] Example 5

[0070] Based on Example 4, in order to adapt to the changes in the Yellow River water level in different seasons, a floating water inlet 5 with a filtration function is provided. The floating water inlet is connected to the water inlet pipe by a rotatable stainless steel flexible hose.

[0071] Example 6

[0072] Using the apparatus of Example 1, the silt in the spray medium was treated by two methods: natural sedimentation and flocculant-accelerated sedimentation. When the natural sedimentation time was 2 hours, the large fine sand particles in the lower layer completely settled at the bottom of the measuring cylinder, while the water in the upper part of the measuring cylinder remained turbid due to the presence of fine sand particles and other substances. When the natural sedimentation time was extended to 24 hours, the upper part of the measuring cylinder was clearer, and the fine sand particles in the spray medium completely settled at the bottom of the measuring cylinder, resulting in a good sedimentation effect.

[0073] When the concentration of polyaluminum sulfate flocculant added is 1 g / L, after adding polyaluminum sulfate, the water quality in the upper layer of the graduated cylinder is relatively clear when the sedimentation time is 140 min, which basically meets the usage requirements. With the further extension of the sedimentation time, when the sedimentation time reaches 300 min, the water sample becomes completely clear.

[0074] When the concentration of polyaluminum sulfate added was 0.5 g / L, and the settling time was 100 min, the upper layer of water in the measuring cylinder was almost completely clear, basically meeting the usage requirements. With further extension of the settling time, there was no significant change in the upper layer of water. Comparing the experimental results of two groups with different concentrations of polyaluminum sulfate shows that when the concentration of polyaluminum sulfate added is 0.5 g / L, the time required for the spray medium to reach the spraying requirements is relatively short, and the smaller amount of polyaluminum sulfate used also reduces the spraying cost. Therefore, in winter, a concentration of 0.5 g / L of polyaluminum sulfate can be added to the extracted spray medium to accelerate settling, thus meeting the requirements for spraying rubber waterproofing under cold conditions.

[0075] During operation, the inlet pump 3 first draws in the spraying medium. When the water level in the storage tank 1 rises to the high water level sensor 10, the inlet pump 3 stops working. After the spraying medium in the storage tank 1 undergoes natural sedimentation or accelerated sedimentation by flocculant, the booster spray pump 11 begins spraying the rubber stopper. As the spraying progresses, the water level in the storage tank 1 gradually decreases. When the water level in the storage tank 1 drops to the low water level sensor 8, the booster spray pump 11 stops spraying, and the first stage of spraying ends. After the first stage of spraying ends, the inlet pump 3 starts working. When the water level in the storage tank 1 rises to the high water level sensor 10, the inlet pump 3 stops working, and the spraying medium settles in the storage tank 1, providing sufficient spraying medium for the next stage of spraying.

Claims

1. A rubber water-stopping spray device for a steel gate of a Yellow River diversion project, characterized in that: The system includes a spray medium extraction structure, a spray medium settling structure, a rubber water-stop spray structure, a silt treatment and re-storage structure, and a spray medium extraction structure including an inlet pump (3), with a floating inlet (5) at the end of the inlet pipe of the inlet pump (3); a spray medium settling structure including a water storage tank (1); a rubber water-stop spray structure including a booster spray pump (11), a low water level sensor (8), and a high water level sensor (10), with a spray pipe (12) connected to the spray end of the booster spray pump (11); and a silt treatment and re-storage structure including a mud guide plate (7). The outlet pipe of the inlet pump (3) is connected to the inside of the water storage tank (1). The booster spray pump (11) is installed inside the water storage tank (1). The water storage tank (1) is equipped with a low water level sensor (8) and a high water level sensor (10). The mud guide plate (7) is installed at an inclined angle at the bottom of the water storage tank (1).

2. The rubber waterstop spraying device for the steel gate of the Yellow River diversion gate according to claim 1, characterized in that: The mud guide plate (7) is set at an angle of 15° to the bottom of the water storage tank (1).

3. The rubber water-stopping spray device for the steel gate of the Yellow River diversion gate according to claim 2, characterized in that: One end of the mud guide plate (7) is close to the inside of the water storage tank (1), and the corresponding position of the other end of the water storage tank (1) is provided with a drain outlet (6).

4. The rubber waterstop spraying device for the gate of the Yellow River diversion gate according to claim 1, characterized in that: The water inlet pipe of the water pump (3) is a fixed water pump inlet pipe (4). The water pump inlet pipe (4) is nested with a hose (17) at one end, and the hose (17) at the other end is connected to the floating inlet (5). The floating inlet (5) is set in the underwater part of the floating platform (16), and the floating platform (16) is fitted onto the hose (17) at the other end.

5. The rubber waterstop spraying device for the steel gate of the Yellow River diversion gate according to claim 4, characterized in that: The outlet end of the water inlet pump (3) is connected to the water inlet pump outlet pipe (2), the water inlet pump outlet pipe (2) is connected to the water inlet pump outlet (13), and the water inlet pump outlet (13) is located inside the water storage tank (1).

6. The rubber waterstop spraying device for the gate of the Yellow River diversion gate according to claim 1, characterized in that: A triangular bracket (20) is fixed on the inner wall of the water storage tank (1). The booster spray pump (11) is fixed on the triangular bracket (20). The booster spray pump (11) is equipped with a booster spray pump inlet pipe (9) and a booster spray pump outlet pipe (14). The booster spray pump inlet pipe (9) is inside the water storage tank (1) and its end is flush with the low water level sensor (8). The booster spray pump outlet pipe (14) passes through the top of the water storage tank (1) and is connected to the external spray pipe (12).

7. The rubber waterstop spraying device for the steel gate of the Yellow River diversion gate according to claim 6, characterized in that: The spray pipe (12) is equipped with a double row of pipes, each with multiple nozzles (15).

8. The rubber waterstop spraying device for the gate of the Yellow River diversion gate according to claim 6, characterized in that: The high water level sensor (10) is set at the same level as the inlet of the booster spray pump (11).

9. The rubber waterstop spraying device for the gate of the Yellow River diversion gate according to claim 1, characterized in that: The mud guide plate (7) is laid flat at an inclined angle at the bottom of the water storage tank (1) and fixed in a high-low state by the support frame (18). The low water level sensor (8) is fixed at the high state end of the mud guide plate (7).

10. The rubber waterstop spraying device for the steel gate of the Yellow River diversion gate according to claim 9, characterized in that: The support frame (18) is a tripod, which is fixed to the bottom of the water storage tank (1).

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