Anti-icing equipment for spillway gate of hydropower station

Abstract

The invention relates to the technical field of building molds, in particular to anti-icing equipment for a spillway gate of a hydropower station, which comprises a limiting frame and a lifting mechanism, the anti-icing equipment of the spillway gate of the hydropower station further comprises a gate body, the gate body is connected to the lifting mechanism, a mounting cavity is formed in the rear end of the gate body, and a sealing plate is mounted at an opening of the mounting cavity. The adopted mounting hole can be used for placing the exhaust part, so that the exhaust part and the gate body form a whole, the mounting hole is sealed by the hole sealing part under the non-working condition, the phenomenon that the exhaust part is blocked due to sludge accumulation in water is effectively avoided, the exhaust part does not need to be separated from the gate body, the space occupied by the exhaust part is reduced, and the service life of the exhaust part is prolonged. And during working, the exhaust part does not need to be cleaned, the preparation steps of anti-icing work are reduced, the exhaust part does not need to be installed on the gate body again, and the convenience of anti-icing work operation of anti-icing equipment is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building molds, in particular to an ice prevention equipment for a spillway gate of a hydropower station. BACKGROUND

[0002] The spillway of a hydropower station is an overflow discharge building with an open type or a breast wall inlet, mainly used for discharging flood exceeding the storage capacity of a reservoir or reducing the water level of the reservoir to ensure the safety of the project.

[0003] In cold regions or seasonal low-temperature environments, the water body of a hydropower station may freeze, ice movement and freeze-thaw cycle may occur, which may easily cause damage or adverse effects to the buildings and facilities of the hydropower project and the operation safety, thus the water body needs to be prevented from freezing.

[0004] The existing ice prevention method for a hydropower station usually adopts a bubble ice prevention method, in which compressed air in a bubble generator release pipeline is released, a water flow with a higher temperature is driven by the bubbles to shoot towards the water surface or ice cover, a strong turbulent flow is formed to melt the ice layer on the water surface or inhibit ice formation. However, the existing bubble ice prevention equipment is in water for a long time, and sludge in the water may gradually accumulate on the bubble ice prevention equipment, causing the air outlet to be blocked, and dredging treatment is needed during use. In order to avoid the blockage of sludge, the existing bubble ice prevention equipment is taken out of the water when not working and installed on the gate or dam body in the water when working. Since the hydropower station is large, the contact range of the water body with the dam body and the gate of the hydropower station is wide, and the bubble ice prevention equipment is long, resulting in high difficulty in installation and disassembly of the bubble ice prevention equipment. Not only does this increase the working steps of the bubble ice prevention, but also a space for placing the disassembled bubble ice prevention equipment is needed, and the working range of each bubble generator of the existing bubble ice prevention equipment cannot be adjusted. In order to ensure the ice prevention effect, a large number of bubble generators need to be arranged, which increases the cost of ice prevention.

[0005] Therefore, it is necessary to provide an ice prevention equipment for a spillway gate of a hydropower station which is simple and convenient to operate and has low ice prevention cost. SUMMARY

[0006] Therefore, it is necessary to provide an ice prevention equipment for a spillway gate of a hydropower station which is simple and convenient to operate and has low ice prevention cost.

[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: an ice prevention equipment for a spillway gate of a hydropower station, comprising: a limiting frame and a lifting mechanism.

[0008] The ice prevention equipment for a spillway gate of a hydropower station further comprises a gate body connected to the lifting mechanism, an installation cavity is formed at the rear end of the gate body, and a sealing plate is installed at the opening of the installation cavity.

[0009] The front end of the gate body is provided with a plurality of groups of vertically uniformly distributed mounting hole groups, each of which is composed of a plurality of horizontally uniformly distributed mounting holes, and the mounting holes are communicated with the mounting cavities through the communication holes.

[0010] The ice prevention equipment of the spillway gate of the hydropower station further comprises aeration mechanisms, the aeration mechanisms are provided in plurality, the aeration mechanisms comprise mounting portions arranged in the corresponding mounting holes and gas flow-through portions, the front end of each gas flow-through portion is provided with at least two groups of exhaust portions from inside to outside, each group of exhaust portions is composed of a plurality of circumferentially uniformly distributed exhaust portions, the front end of each mounting hole is provided with a hole sealing portion for sealing the mounting hole, and the rear ends of the plurality of gas flow-through portions are jointly connected with an air inlet portion.

[0011] The exhaust portion comprises an exhaust pipe one hinged with the gas flow-through portion, the exhaust pipe one is communicated with the gas flow-through portion through a flexible pipe, the outer surface of the exhaust pipe one is fixedly connected with a traction steel rope one, and a plurality of exhaust holes are arranged in the exhaust pipe one.

[0012] The ice prevention equipment of the spillway gate of the hydropower station further comprises a pushing mechanism, which is arranged in the mounting cavity and used for pushing the air inlet portion.

[0013] When not preventing ice, the hole sealing portion seals the mounting hole and prevents sludge from blocking the exhaust portion; when preventing ice, the pushing mechanism first drives the hole sealing portion to separate from the mounting hole, and then pushes the air inlet portion, so that the plurality of gas flow-through portions push the plurality of exhaust portions out of the mounting hole and aerate.

[0014] Preferably, the pushing mechanism comprises two pushing portions symmetrically arranged in the mounting cavity, and the two pushing portions are jointly connected with a plurality of vertically distributed traction rods.

[0015] Preferably, the mounting portion comprises an annular mounting plate arranged in the mounting hole and abutting with the vertical side wall of the mounting hole, two screw rods are symmetrically arranged at the rear end of the annular mounting plate, and the rear end of each screw rod penetrates the gate body and is threadedly connected with a nut arranged in the mounting cavity.

[0016] Preferably, the gas flow-through portion comprises a communication pipe simultaneously slidingly arranged in the middle portion of the communication hole and the middle portion of the annular mounting plate, and an annular gas collecting frame is arranged at the front end of the communication pipe, a plurality of connecting holes corresponding to the plurality of exhaust portions are arranged in the front frame wall of the gas collecting frame, and an arc-shaped hinged seat is arranged in each connecting hole.

[0017] Preferably, the hinged seat is hinged with the corresponding exhaust pipe one, the hinged seat is fixedly connected with and communicated with the corresponding flexible pipe, a threading pipe penetratingly arranged on the gas collecting frame is arranged on the side of the hinged seat away from the axis of the gas collecting frame, and the traction steel rope one slidingly penetrates through the corresponding threading pipe and is fixedly connected with the annular mounting plate.

[0018] Preferably, the sealing part includes a guide frame installed at the front end of the gate body, a sealing plate is slidably connected in the guide frame, two connecting springs are installed between the upper end of the sealing plate and the transverse section of the guide frame, and a threading hole is provided above the mounting hole and is opened on the gate body. Two traction steel ropes slide through the threading hole, and the two ends of the two traction steel ropes are respectively fixedly connected to the corresponding upper end of the sealing plate and the corresponding traction rod.

[0019] Preferably, the air intake portion includes a plurality of transverse air intake pipes evenly distributed from top to bottom, the air intake pipes are fixedly connected to a plurality of connecting pipes at the same height, and a connecting pipe is commonly installed at the ends of the same side of the plurality of air intake pipes.

[0020] Preferably, the pushing portion includes a mounting groove provided on the top wall of the mounting cavity, a driving member is installed in the mounting groove, an L-shaped lifting frame is installed at the lower end of the driving member, a plurality of evenly distributed trapezoidal pushing blocks are installed at the front end of the vertical section of the lifting frame, the trapezoidal pushing blocks are fixedly connected to the corresponding traction rods, the inclined surfaces of the trapezoidal pushing blocks face downward, and a reset block fixedly connected to the vertical section of the lifting frame is provided below the trapezoidal pushing blocks.

[0021] Preferably, the pushing portion further comprises a plurality of limiting rods respectively mounted on the upper ends of the plurality of trapezoidal pushing blocks, and the front ends of the limiting rods are rotatably connected to rollers.

[0022] Preferably, the rear end of the exhaust pipe is hemispherical, and the rear end of the exhaust pipe is hinged to the hinge seat.

[0023] Preferably, a second exhaust pipe is installed in the middle of the front end of the gas collecting frame and is connected to the second exhaust pipe, and air outlet holes are evenly arranged on the second exhaust pipe.

[0024] In summary, the present invention includes the following beneficial technical effects: 1. The mounting hole adopted in the present invention can be used to place the exhaust part so that it forms a whole with the gate body. When not working, the sealing part seals the mounting hole, effectively avoiding the phenomenon of sludge accumulation in the water causing blockage of the exhaust part, and there is no need to separate the exhaust part from the gate body, which reduces the space occupied by the exhaust part stacking. There is no need to clean the exhaust part during work, which reduces the preparation steps for anti-icing work and there is no need to reinstall the exhaust part on the gate body, which effectively improves the convenience of anti-icing operation of the anti-icing equipment.

[0025] 2. The aeration mechanism and the pushing mechanism used in the present invention cooperate to not only effectively increase the working range of the aeration mechanism and improve the anti-icing effect, but also reduce the laying density of the aeration mechanism, thereby reducing the cost of the anti-icing work of the anti-icing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0027] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the present invention.

[0028] Figure 2 It shows a structural schematic diagram of the present invention without the limiting frame, lifting mechanism and sealing plate.

[0029] Figure 3 A front view of the present invention is shown.

[0030] Figure 4 Shown Figure 3 Partial cross-sectional view of AA.

[0031] Figure 5 A schematic diagram of the connection between the sealing portion and the traction rod of the present invention is shown.

[0032] Figure 6 A schematic diagram of the three-dimensional structure of the mounting portion, gas circulation portion and exhaust portion of the present invention is shown.

[0033] Figure 7 A cross-sectional view of the mounting portion, gas flow portion, and exhaust portion of the present invention is shown.

[0034] Figure 8 Shown is a schematic diagram of the working state of the present invention.

[0035] The above drawings include the following reference numerals: 1. limit frame; 2. lifting mechanism; 20. transmission module; 21. threaded rod; 3. gate body; 30. mounting cavity; 31. sealing plate; 32. mounting hole; 33. connecting hole; 4. aeration mechanism; 40. mounting portion; 400. annular mounting plate; 401. screw; 41. gas flow portion; 410. connecting pipe; 411. gas collecting frame; 412. hinge seat; 413. threading pipe; 414. exhaust pipe 2; 42. exhaust portion; 420. exhaust Trachea 1; 421, flexible through-tube; 422, traction steel rope 1; 423, exhaust hole; 43, sealing part; 430, guide frame; 431, sealing plate; 432, connecting spring; 433, threading hole; 434, traction steel rope 2; 44, air inlet part; 440, air inlet pipe; 441, connecting pipe; 5, pushing mechanism; 50, pushing part; 500, driving part; 501, lifting frame; 502, trapezoidal pushing block; 503, reset block; 504, limit rod; 505, roller; 51, traction rod. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] See Figure 1 and Figure 3 , an anti-icing device for a spillway gate of a hydropower station, including a limit frame 1 and a lifting mechanism 2.

[0038] See Figure 1 and Figure 3 The lifting mechanism 2 includes a transmission module 20 detachably mounted on the limiting frame 1 , and a threaded rod 21 is connected to the transmission module 20 .

[0039] During the specific work, before work, the limit frame 1 is first installed on the concrete support seat of the existing spillway. The transmission module 20 is a motor device that is threadedly matched with the threaded rod 21. Then the transmission module 20 is installed on the limit frame 1 through bolts. The transmission module 20 controls the lifting and lowering of the threaded rod 21.

[0040] See Figure 1 、 Figure 2 and Figure 4 The anti-icing equipment of the spillway gate of the hydropower station also includes a gate body 3. The lower end of the threaded rod 21 is hinged to the gate body 3. The rear end of the gate body 3 is provided with an installation cavity 30. A sealing plate 31 is fixedly installed at the opening of the installation cavity 30 by welding.

[0041] During specific operation, the gate body 3 is located in the spillway and the transmission module 20 controls the lifting and lowering of the threaded rod 21 to change the position of the gate body 3 in the spillway, thereby realizing the function of opening or closing the spillway. Before the gate body 3 is installed and used, the installation cavity 30 and the sealing plate 31 are in a separated state.

[0042] See Figure 1 and Figure 5 The front end of the gate body 3 is provided with multiple groups of vertically evenly distributed mounting holes, and the mounting hole group consists of multiple horizontally evenly distributed mounting holes 32. The mounting holes 32 are connected to the mounting cavity 30 through a connecting hole 33.

[0043] See Figure 1 、 Figure 2 、 Figure 5 and Figure 6The ice prevention equipment of the spillway gate of the hydropower station further comprises aeration mechanisms 4, the aeration mechanisms 4 are provided in plurality, and the aeration mechanisms 4 comprise mounting portions 40 provided in the corresponding mounting holes 32 and gas flow-through portions 41.

[0044] Referring to Figure 5 , Figure 6 and Figure 7 , the mounting portion 40 comprises an annular mounting plate 400 provided in the mounting hole 32 and abutting against the vertical side wall of the mounting hole 32, two screw rods 401 are symmetrically mounted at the rear end of the annular mounting plate 400, the rear end of the screw rod 401 penetrates through the gate body 3 and is threadedly connected with a nut in the mounting cavity 30.

[0045] In specific work, before the gate body 3 is installed, the plurality of annular mounting plates 400 are respectively placed in the corresponding mounting holes 32, the annular mounting plate 400 drives the two screw rods 401 to penetrate through the gate body 3 and realizes the installation limiting function of the annular mounting plate 400 through cooperation with the nut.

[0046] Referring to Figure 5 , Figure 6 and Figure 7 , the gas flow-through portion 41 comprises a communication pipe 410 which is simultaneously slidably arranged in the middle of the communication hole 33 and the middle of the annular mounting plate 400, an annular gas collecting frame 411 is mounted at the front end of the communication pipe 410, a plurality of connecting holes corresponding to the plurality of exhaust portions 42 are formed in the front frame wall of the gas collecting frame 411, and an arc-shaped hinged seat 412 is mounted in the connecting hole.

[0047] In specific work, the communication pipe 410 and the gas collecting frame 411 are moved into the corresponding mounting hole 32 at the same time when the annular mounting plate 400 is installed, and after the annular mounting plate 400 is installed, the communication pipe 410 is slidably arranged in the communication hole 33, and a sealing ring is arranged in the communication hole 33 to seal the gap between the communication pipe 410 and the communication hole 33.

[0048] Referring to Figure 4-Figure 7 , the rear ends of the plurality of gas flow-through portions 41 are commonly connected with an air inlet portion 44, the air inlet portion 44 comprises a plurality of horizontally arranged air inlet pipes 440 which are uniformly distributed from top to bottom, the air inlet pipe 440 is fixedly connected with the plurality of communication pipes 410 which are at the same height, and a pipe connector 441 is commonly mounted at the same side end portion of the plurality of air inlet pipes 440.

[0049] During specific operation, after the multiple connecting tubes 410 are slid through the connecting holes 33, the multiple connecting tubes 410 are fixedly connected and connected to the corresponding multiple air inlet pipes 440 by welding. It should be noted that the connecting tube 410 can also be fixedly connected and connected to the air inlet pipe 440 through the existing quick clamping mechanism, which is not shown in this embodiment. Subsequently, the connecting pipe 441 is connected to the existing high-pressure gas output equipment through the existing flexible metal tube. After the multiple air inlet pipes 440 and the multiple connecting tubes 410 are installed, the sealing plate 31 is welded to the opening of the installation cavity 30, and then the gate body 3 is installed in the working position of the spillway.

[0050] See Figure 6 and Figure 7 Two groups of exhaust parts 42 are provided at the front end of the gas circulation part 41 from the inside to the outside. Each group of exhaust parts 42 is composed of a plurality of exhaust parts 42 evenly distributed circumferentially. The exhaust part 42 includes an exhaust pipe 420 hinged to the gas circulation part 41. The exhaust pipe 420 is connected to the gas circulation part 41 through a flexible through pipe 421. A traction steel rope 422 is fixedly connected to the outer surface of the exhaust pipe 420, and a plurality of exhaust holes 423 are opened on the exhaust pipe 420.

[0051] See Figure 6 and Figure 7 The hinged seat 412 is hinged to the corresponding exhaust pipe 420, and the hinged seat 412 is fixedly connected and communicated with the corresponding flexible through pipe 421. A wire threading tube 413 installed on the air collecting frame 411 is provided on the side of the hinged seat 412 away from the axis of the air collecting frame 411. The traction steel rope 422 slides through the corresponding wire threading tube 413 and is fixedly connected to the annular mounting plate 400.

[0052] See Figure 6 and Figure 7 The middle part of the front end of the gas collecting frame 411 is installed with an exhaust pipe 2 414 and is connected to the exhaust pipe 2 414 , and air outlet holes are evenly arranged on the exhaust pipe 2 414 .

[0053] During specific operation, after the multiple air collecting frames 411 are installed, in the initial state, the air collecting frame 411 drives the two groups of exhaust parts 42 and the exhaust pipe 2 414 to be located in the mounting hole 32, and the multiple exhaust pipes 420 are in a state of being close to each other. The traction steel rope 422 passes through the threading tube 413 and is respectively connected to the exhaust pipe 420 and the annular mounting plate 400. The traction steel rope 422 can be pulled to be in a straight state by changing the distance between the multiple exhaust pipes 420 and the annular mounting plate 400. Then the air collecting frame 411 continues to move, and the multiple traction steel ropes 422 pull the multiple exhaust pipes 420 to rotate in a direction away from the axis of the air collecting frame 411. The multiple exhaust pipes 420 are distributed in a fanned-out manner, thereby achieving the purpose of increasing the working range of the multiple exhaust pipes 420.

[0054] See Figure 4 and Figure 5 A sealing portion 43 for closing the mounting hole 32 is provided at the front end of the mounting hole 32. The sealing portion 43 includes a guide frame 430 mounted at the front end of the gate body 3 by welding. A sealing plate 431 is slidably connected to the guide frame 430. Two connecting springs 432 are installed between the upper end of the sealing plate 431 and the transverse section of the guide frame 430. A wire threading hole 433 is provided above the mounting hole 32 and is opened on the gate body 3. A traction steel rope 434 slides through the wire threading hole 433.

[0055] During specific operation, when no antifreeze is required, the two connecting springs 432 move the lower end of the sealing plate 431 out of the guide frame 430 and seal the end of the mounting hole 32. When the gate body 3 is in water for a long time, it can effectively prevent sludge in the water from adhering to and accumulating on the exhaust pipe 1 420 and the exhaust pipe 2 414, thereby avoiding the blockage of multiple exhaust holes 423. There is no need to clean the exhaust pipe 1 420 and the exhaust pipe 2 414 when antifreeze is used, which reduces the preparation steps for bubble antifreeze, and the aeration mechanism 4 only needs to be installed once. When antifreeze is not working, there is no need to separate the aeration mechanism 4 from the gate body 3, and no additional space is required to place the aeration mechanism 4. There is no need to install the aeration mechanism 4 and the gate body 3 multiple times during multiple antifreeze operations. The operating steps of the bubble antifreeze work are simple and convenient.

[0056] See Figure 2 and Figure 5 The anti-icing device of the spillway gate of the hydropower station further includes a pushing mechanism 5 , which is arranged in the installation cavity 30 and is used to push the air inlet part 44 .

[0057] See Figure 2 and Figure 5 The pushing mechanism 5 includes two pushing parts 50 symmetrically arranged in the installation cavity 30. The two pushing parts 50 are commonly connected to a plurality of vertically distributed traction rods 51. The two ends of the traction steel rope 434 are respectively fixedly connected to the upper end of the corresponding sealing plate 431 and the corresponding traction rod 51.

[0058] See Figure 2 、 Figure 4 and Figure 5 The pushing portion 50 includes a mounting groove opened on the top wall of the mounting cavity 30, a driving member 500 is installed in the mounting groove, an L-shaped lifting frame 501 is installed at the lower end of the driving member 500, and a plurality of evenly distributed trapezoidal pushing blocks 502 are installed at the front end of the vertical section of the lifting frame 501, and the trapezoidal pushing blocks 502 are fixedly connected to the corresponding traction rods 51.

[0059] During specific operation, the driving member 500 is an existing hydraulic push rod. Before operation, the driving member 500 is connected to the existing hydraulic pump. When anti-freezing is performed in winter, the hydraulic pump is started. The hydraulic pump controls the two driving members 500 to drive the two lifting frames 501 to move downward. The two lifting frames 501 drive multiple trapezoidal pushing blocks 502 to move downward. The multiple trapezoidal pushing blocks 502 drive multiple traction rods 51 to move. The multiple traction rods 51 drive the corresponding multiple sealing plates 431 to rise through multiple traction steel ropes 434 and compress the two connecting springs 432 until the sealing plate 431 opens the end of the mounting hole 32. At this time, the trapezoidal pushing block 502 is located on the upper side of the air intake pipe 440 at the corresponding position.

[0060] See Figure 2 、 Figure 4 and Figure 5 The inclined surface of the trapezoidal pushing block 502 faces downward, and a reset block 503 is provided below the trapezoidal pushing block 502, which is fixedly connected to the vertical section of the lifting frame 501 and is located below the corresponding air intake pipe 440. The reset block 503 is in an inclined state.

[0061] See Figure 2 、 Figure 4 and Figure 5 The pushing portion 50 further includes a plurality of limiting rods 504 respectively mounted on the upper ends of the plurality of trapezoidal pushing blocks 502 , and the front ends of the limiting rods 504 are rotatably connected to rollers 505 .

[0062] See Figure 7 The rear end of the exhaust pipe 420 is hemispherical, and the rear end of the exhaust pipe 420 is hinged to the hinge seat 412.

[0063] During specific operation, after the mounting hole 32 is opened, the two driving members 500 continue to drive the two lifting frames 501 to move downward, and the lifting frames 501 drive the inclined surfaces of the multiple trapezoidal pushing blocks 502 to push the multiple air intake pipes 440 at the same time. The multiple air intake pipes 440 are forced to move and push the multiple connecting pipes 410. The multiple connecting pipes 410 are forced to move and drive the multiple exhaust pipes 1 420 and the exhaust pipe 2 414 to move out of the mounting hole 32 through the gas collecting frame 411. During this process, the exhaust pipe 1 420 gradually moves away from the annular mounting plate 400 and the traction rope 1 422 is gradually in a straightened state. As the exhaust pipe 1 420 moves, the straightened traction rope 1 422 drives the exhaust pipe 1 420 to rotate at the hinge seat 412 in a direction away from the axis of the gas collecting frame 411 until the exhaust pipe 1 420 rotates to the maximum angle and the driving member 500 stops working. At this time, the multiple exhaust pipes 1 420 and the exhaust pipe 2 414 are all moved out of the mounting hole 32, and the multiple annularly distributed exhaust pipes 1 420 on the same gas collecting frame 411 are in a state of diverging outwards (such as Figure 8As shown), the working range of the plurality of exhaust pipes 420 is effectively increased, that is, the range of bubble generation, which effectively improves the effect of preventing water from freezing. Moreover, the increased range of bubble generation can reduce the density of bubble generator arrangement, thereby reducing the use of bubble generators. At the same time, the trapezoidal pushing block 502 drives the limit rod 504 to move, and the limit rod 504 slides on the front cavity wall of the installation cavity 30 through the roller 505. The limit rod 504 cooperates with the corresponding air inlet pipe 440 to limit the movement of the lifting frame 501 to prevent the lifting frame 501 from descending too far. The limit rod 504, the roller 505 and the lifting frame 501 cooperate to support the space of the installation cavity 30 and improve the overall force strength of the gate body 3.

[0064] After the multiple exhaust pipes 1 420 and exhaust pipe 2 414 are all moved out of the mounting hole 32, the high-pressure gas output device is started. The high-pressure gas output device injects the high-pressure gas into the connecting pipe 441 through the flexible metal tube. The connecting pipe 441 injects the high-pressure gas into the multiple air inlet pipes 440 respectively. The high-pressure gas then enters the gas collecting frame 411 through the multiple connecting pipes 410. The high-pressure gas in the gas collecting frame 411 enters the multiple exhaust pipes 1 420 through the multiple flexible through pipes 421. At the same time, the high-pressure gas in the gas collecting frame 411 directly enters the exhaust pipe 2 414, and then is discharged through the multiple exhaust holes 423 on the exhaust pipe 1 420 and the multiple air outlet holes on the exhaust pipe 2 414, thereby realizing the bubble antifreeze function.

[0065] After the antifreeze time is over, the two driving parts 500 drive the two lifting frames 501 to move upward, and the two lifting frames 501 drive multiple reset blocks 503 to move upward. The reset blocks 503 push the corresponding air intake pipe 440, and the air intake pipe 440 is reset by force and drives multiple air collecting frames 411 to move into the corresponding mounting hole 32 through multiple connecting pipes. The air collecting frame 411 drives multiple exhaust pipes 1 420 and exhaust pipe 2 414 to move back into the mounting hole 32. During this process, the squeezed connecting spring 432 is reset and drives the sealing plate 431 to move downward and re-seal the end of the mounting hole 32, and the antifreeze work is completed.

[0066] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0067] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0068] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-icing device for a spillway gate of a hydropower station, comprising a limit frame and a lifting mechanism, characterized in that: The gate body is connected to the lifting mechanism, and a mounting cavity is provided at the rear end of the gate body; The front end of the gate body is provided with a plurality of vertically distributed mounting hole groups, the mounting hole groups are composed of a plurality of horizontally distributed mounting holes, and the mounting holes are connected to the mounting cavity through a connecting hole; Aeration mechanisms are provided in plurality, each comprising a mounting portion and a gas circulation portion provided in a corresponding mounting hole, at least two exhaust portion groups being provided at the front end of the gas circulation portion from the inside to the outside, each exhaust portion group being composed of a plurality of circumferentially distributed exhaust portions, a sealing portion being provided at the front end of the mounting hole, and an air inlet portion being commonly connected to the rear ends of the plurality of gas circulation portions; The exhaust portion includes an exhaust pipe 1 hingedly connected to the gas circulation portion, the exhaust pipe 1 being connected to the gas circulation portion through a flexible through-tube, a traction steel rope 1 being fixedly connected to the outer surface of the exhaust pipe 1, and a plurality of exhaust holes being opened on the exhaust pipe 1; A pushing mechanism is arranged in the installation cavity; When antifreeze is not applied, the sealing part seals the mounting hole and prevents sludge from clogging the exhaust part; when antifreeze is applied, the pushing mechanism first separates the sealing part from the mounting hole, and then pushes the air inlet part, so that the multiple gas circulation parts push the multiple exhaust parts out of the mounting hole and aerate.

2. The anti-icing device for a spillway gate of a hydropower station according to claim 1, characterized in that: The pushing mechanism comprises two pushing parts symmetrically arranged in the installation cavity, and the two pushing parts are commonly connected to a plurality of vertically distributed traction rods.

3. The anti-icing device for a spillway gate of a hydropower station according to claim 1, characterized in that: The mounting portion includes an annular mounting plate arranged in the mounting hole and fitted with the vertical side wall of the mounting hole. Two screws are symmetrically mounted on the rear end of the annular mounting plate. The rear ends of the screws penetrate the gate body and are threadedly connected to nuts located in the mounting cavity.

4. The anti-icing device for a spillway gate of a hydropower station according to claim 3, characterized in that: The gas circulation part includes a connecting pipe that slides through the middle of the connecting hole and the middle of the annular mounting plate at the same time. A gas collecting frame with an annular structure is installed at the front end of the connecting pipe. A plurality of connecting holes corresponding to the plurality of exhaust parts are opened on the front frame wall of the gas collecting frame, and a hinge seat with an arc-shaped structure is installed in the connecting hole.

5. The anti-icing device for a spillway gate of a hydropower station according to claim 4, characterized in that: The articulated seat is hinged to the corresponding exhaust pipe, and the articulated seat is fixedly connected and communicated with the corresponding flexible through pipe. A wire threading tube installed on the air collecting frame is provided on the side of the articulated seat away from the axis of the air collecting frame. The traction steel rope slides through the corresponding wire threading tube and is fixedly connected to the annular mounting plate.

6. The anti-icing device for a spillway gate of a hydropower station according to claim 2, characterized in that: The sealing part includes a guide frame installed at the front end of the gate body, a sealing plate is slidably connected in the guide frame, two connecting springs are installed between the upper end of the sealing plate and the transverse section of the guide frame, a threading hole is provided above the mounting hole and is opened on the gate body, and two traction steel ropes are slid through the threading hole, and the two ends of the two traction steel ropes are respectively fixedly connected to the corresponding upper end of the sealing plate and the corresponding traction rod.

7. The anti-icing device for a spillway gate of a hydropower station according to claim 4, characterized in that: The air intake portion includes a plurality of transverse air intake pipes evenly distributed from top to bottom. The air intake pipes are fixedly connected to a plurality of connecting pipes at the same height. A connecting pipe is commonly installed at the ends of the same side of the plurality of air intake pipes.

8. The anti-icing device for a spillway gate of a hydropower station according to claim 2, characterized in that: The pushing portion includes a mounting groove provided on the top wall of the mounting cavity, a driving member is installed in the mounting groove, an L-shaped lifting frame is installed at the lower end of the driving member, a plurality of evenly distributed trapezoidal pushing blocks are installed at the front end of the vertical section of the lifting frame, the trapezoidal pushing blocks are fixedly connected to the corresponding traction rods, the inclined surfaces of the trapezoidal pushing blocks face downward, and a reset block fixedly connected to the vertical section of the lifting frame is provided below the trapezoidal pushing blocks.

9. The anti-icing device for a spillway gate of a hydropower station according to claim 8, characterized in that: The pushing portion further comprises a plurality of limiting rods respectively mounted on the upper ends of the plurality of trapezoidal pushing blocks, and the front ends of the limiting rods are rotatably connected to rollers.

10. The anti-icing device for a spillway gate of a hydropower station according to claim 4, characterized in that: The rear end of the exhaust pipe is hemispherical and is hinged to the hinge seat.

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