Concrete dam body anti-icing device

Abstract

The present invention discloses an anti-icing device for a concrete dam body, comprising an air pump, an air delivery pipe body and a transmission pipe body, wherein the output end of the air pump is connected to the air delivery pipe body, and a plurality of transmission pipe bodies are evenly connected to the air delivery pipe body, and further comprising a bubble generating unit, wherein the bubble generating unit comprises a first bubble tube and a second bubble tube, each of the transmission pipe bodies is respectively installed with a first bubble tube, each of the first bubble tubes is respectively installed with a second bubble tube in a sliding seal, and each of the first bubble tubes and the second bubble tubes is evenly provided with a plurality of air outlet holes, and the number of air outlet holes can be adjusted by adjusting the position of the second bubble tube on the first bubble tube; since the first bubble tube and the second bubble tube are both provided with air outlet holes, gas is discharged into the water through the air outlet holes to release a large number of microbubbles, and the movement of the microbubbles in the water disturbs the water body to form heat exchange, thereby effectively preventing the formation of an ice layer.

Description

Technical Field

[0001] The present invention relates to the technical field related to water conservancy and hydropower engineering buildings, and specifically to an anti-icing device for a concrete dam body. Background Art

[0002] It is well known that in cold regions, ice loads on hydraulic structures include static ice pressure, ice pullout, and ice climbing force. The interaction between ice and hydraulic structures is a complex phenomenon involving many factors. Based on the differences in ambient temperature, hydraulic structure geometry, atmospheric temperature rise rate, sunlight angle, reservoir water level fluctuation, etc., any one or several mixed damage modes may occur. It is well known that ice damage (in various forms) is an important factor in the damage of hydraulic structures in cold regions.

[0003] In winter, there are many cases where water bodies freeze and the ice expands, thus affecting the normal operation of water conservancy facilities. The harm caused by freezing damage cannot be underestimated. In winter, on the one hand, the freezing of water bodies such as reservoirs, rivers, and sluices can easily cause the water level to rise seriously, which can lead to flooding and pose a great safety hazard to the reservoir area; on the other hand, the huge thrust formed by the expansion of the ice surface may also cause sluices and dams to be squeezed and deformed, affecting the safe operation of water conservancy projects. Therefore, effective anti-freezing measures are essential.

[0004] For example, the anti-icing device for concrete arch dams disclosed with announcement number CN21823330U and publication date January 6, 2023, discloses an anti-icing device for concrete arch dams, which belongs to the technical field of water conservancy and hydropower construction engineering; the utility model includes multiple bubble generators; a truss structure carrying the bubble generator; the truss structure has a lower chord and an upper chord arranged above the lower chord, and a web connecting the lower chord and the upper chord; the upper chord is an air supply pipeline, which is used to communicate with the bubble generator and supply air to the bubble generator; wherein, it also includes a leg assembly installed on the upper chord; one end of the leg assembly can be fixedly connected to the positioning plate on the upper chord at any angle through a positioning piece, so that the leg assembly and the truss structure form a triangular structure with the ground, and support the upper chord to remain above the truss structure. The upper chord of the utility model is fixedly connected to the leg assembly at any angle through the positioning plate, which can effectively prevent the truss from flipping over, thereby avoiding contact between the bubble generator and the ground, so that it maintains efficient foaming.

[0005] The shortcoming of the existing technology is that when the water temperature changes greatly, it is necessary to adjust the number of air outlets to adapt to the change in water temperature, thereby preventing the water surface from freezing. Since the number of air outlets on the bubble generator is fixed, more bubbles cannot be generated according to the change in water temperature, thereby affecting the anti-icing effect of the water surface. Summary of the invention

[0006] The purpose of the present invention is to provide a concrete dam body anti-icing device to solve the technical problems in the related art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-icing device for a concrete dam body, comprising an air pump, an air pipe body and a transmission pipe body, the output end of the air pump is connected to the air pipe body, and a plurality of transmission pipe bodies are evenly connected to the air pipe body, and also comprises a bubble generating unit, the bubble generating unit comprises a first bubble tube and a second bubble tube, each of the transmission pipe bodies is respectively installed with a first bubble tube, each of the first bubble tubes is respectively installed with a second bubble tube in a sliding seal, each of the first bubble tubes and the second bubble tubes is evenly provided with a plurality of air outlet holes, and the number of air outlet holes can be adjusted by adjusting the position of the second bubble tube on the first bubble tube.

[0008] As mentioned above, a plurality of thread grooves are evenly arranged on the gas delivery pipe body, and each of the transmission pipe bodies is connected to the thread groove on the gas delivery pipe body by thread connection.

[0009] As mentioned above, the transmission tube body is a telescopic structure, and the length of the transmission tube body can be adjusted.

[0010] As mentioned above, a first air blowing tube is slidably and sealably installed on the inner wall of the end of each of the first bubble tubes away from the transmission tube body, a second air blowing tube is slidably and sealably arranged inside each of the first air blowing tubes, and a third air blowing tube is slidably and sealably installed inside each of the second air blowing tubes, so that each of the first air blowing tubes, the second air blowing tube and the third air blowing tube form a tubular structure that can slide and retract.

[0011] As mentioned above, a connecting rod is provided at the end of each of the second bubble tubes, an auxiliary ring is provided on the connecting rod, and the third air blowing tube is rotatably installed in the auxiliary ring.

[0012] As mentioned above, a plurality of follower blocks are evenly arranged on the inner wall of the end of each of the second bubble tubes along the circumferential direction thereof, and the top end of each of the follower blocks is an arc-shaped inclined surface.

[0013] As mentioned above, each of the third air blowing pipes is arranged at an angle, and the air outlet portion of each of the third air blowing pipes faces the arc-shaped inclined surface of the driven block.

[0014] As mentioned above, each of the second bubble tubes and the transmission tube body connected thereto is connected via a second elastic member.

[0015] As mentioned above, the gap between two connected air outlet holes arranged on each of the first bubble tube and the second bubble tube is smaller than the diameter of the air outlet hole.

[0016] As mentioned above, a dispersion unit is provided at the end of the second bubble tube, and the dispersion unit is used to disperse the bubbles.

[0017] The beneficial effects of the present invention are as follows: gas is transported into each transmission tube body through an air pump and a gas transmission tube body, and the transmission tube body transports gas into the first bubble tube and the second bubble tube. Since both the first bubble tube and the second bubble tube are provided with air outlets, gas is discharged into the water through the air outlets to release a large number of microbubbles. The movement of the microbubbles in the water disturbs the water body to form heat exchange. The energy of the microbubble rupture can also prevent the aggregation of ice crystals in the water, thereby effectively preventing the formation of an ice layer. When the water temperature is low, it is necessary to increase the release of microbubbles in the water, and push the second bubble tube to slide on the first bubble tube, so that the overall length of the second bubble tube and the first bubble tube is increased, the number of air outlets in the water is increased, and the release of microbubbles in the water is increased. When the water temperature is high, the release of microbubbles in the water is reduced, and the second bubble tube is pushed to slide on the first bubble tube, so that the overall length of the second bubble tube and the first bubble tube is reduced, the number of air outlets in the water is reduced, and the release of microbubbles in the water is reduced. The water temperature is changed, and the number of air outlets is adjusted, which can effectively prevent the water surface from freezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of a partial cross-sectional structure from a first viewing angle;

[0021] Figure 3 For the present invention Figure 2 A schematic diagram of a partially enlarged cross-sectional structure at L;

[0022] Figure 4 For the present invention Figure 2 A schematic diagram of a partially enlarged cross-sectional structure at M;

[0023] Figure 5 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention from a first viewing angle;

[0024] Figure 6 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention from a second viewing angle;

[0025] Figure 7A schematic diagram of a partial cross-sectional structure of another embodiment of the present invention in a motion state;

[0026] Figure 8 A partial cross-sectional structural schematic diagram of another embodiment provided by the present invention;

[0027] Fig. 9 For the present invention Figure 1 A schematic cross-sectional structure diagram of a second viewing angle;

[0028] Fig.10 For the present invention Fig. 9 A schematic diagram of a partially enlarged cross-sectional structure at N;

[0029] Fig.11 For the present invention Fig. 9 A schematic diagram of a partially enlarged cross-sectional structure at P;

[0030] Fig.12 It is a schematic diagram of the cross-sectional structure of the gas transmission pipe body and the transmission pipe body of the present invention installed in a concrete dam.

[0031] Description of reference numerals:

[0032] 1. Gas transmission pipe body; 2. Transmission pipe body; 3. First bubble tube; 4. Second bubble tube; 5. Air outlet; 6. Second elastic member; 7. First pipe body; 8. Second pipe body; 9. Concave hole; 10. Insertion rod; 11. First elastic member; 12. First air blowing pipe; 13. Second air blowing pipe; 14. Third air blowing pipe; 15. Connecting rod; 16. Auxiliary ring; 17. Follower block; 18. First spherical rod; 19. Follower rod; 20. Slide groove; 21. First slider; 22. Straight groove; 23. Second slider; 24. Transmission rod; 25. Dispersing circular plate; 26. Fan blade; 27. Square groove; 28. Pressing block; 29. ​​Third elastic member; 30. Ball; 31. Arc groove; 32. Second spherical rod; 33. Concrete dam; 34. Water surface of dam body; 35. Vertical line of water surface. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Fig.12 The present invention is further described in detail.

[0034] An embodiment provided by the present invention relates to an anti-icing device for a concrete dam body, comprising an air pump, a gas pipe body 1 and a transmission pipe body 2, wherein the output end of the air pump is connected to the gas pipe body 1, and a plurality of transmission pipe bodies 2 are evenly connected to the gas pipe body 1, and further comprising a bubble generating unit, wherein the bubble generating unit comprises a first bubble tube 3 and a second bubble tube 4, each of the transmission pipe bodies 2 is respectively installed with a first bubble tube 3, each of the first bubble tubes 3 is respectively installed with a second bubble tube 4 in a sliding seal, and each of the first bubble tubes 3 and the second bubble tubes 4 are evenly provided with a plurality of air outlet holes 5, and the number of the air outlet holes 5 can be adjusted by adjusting the position of the second bubble tube 4 on the first bubble tube 3.

[0035] Specifically, the air pump is used to transport gas to the gas delivery pipe body 1, the gas delivery pipe body 1 is arranged on the concrete dam body, the gas delivery pipe body 1 is connected to the output end of the air pump (not shown in the figure), and multiple transmission pipe bodies 2 are evenly connected to the gas delivery pipe body 1, so that the air pump can transport gas from the gas delivery pipe body 1 to each transmission pipe body 2, and multiple transmission pipe bodies 2 can cover a certain width of water area, each transmission pipe body 2 is connected to a first bubble tube 3, and each first bubble tube 3 is slidably sealed and installed with a second bubble tube 4. Preferably, each second bubble tube 4 is connected to the transmission pipe body 2 connected thereto through a second elastic member 6. The gap between the two connected air outlets 5 provided on each of the first bubble tubes 3 and the second bubble tubes 4 is smaller than the diameter of the air outlets 5. The first bubble tubes 3 and the second bubble tubes 4 are extended into a suitable anti-icing position in the water. When the gas is transported from the transmission tube body 2 to the first bubble tube 3, the gas pushes the second bubble tube 4 to slide on the first bubble tube 3, and at the same time, the gas is discharged from the air outlets 5, so that the gas in the transmission tube body 2 is discharged from the air outlets 5 into the water to release a large number of microbubbles. The movement of the microbubbles in the water disturbs the water body to form heat exchange, and the energy of the microbubble rupture can also prevent the aggregation of ice crystals in the water, thereby effectively preventing the formation of an ice layer. When the water temperature is low, it is necessary to increase the release of microbubbles in the water. At this time, it is necessary to increase the delivery of gas by controlling the air pump. The delivery amount of gas is large, and the gas pushes the sliding distance of the second bubble tube 4 on the first bubble tube 3 to increase. At this time, the second bubble tube 4 stretches the second elastic member 6 (the second elastic member 6 is an original member that can be retracted and reset, such as: a rubber band, a spring, etc.), so that the second elastic member 6 is in a stretched state, so that the overall length of the second bubble tube 4 and the first bubble tube 3 is increased, so that the number of the air outlet holes 5 on the first bubble tube 3 and the second bubble tube 4 is increased, thereby increasing the microbubbles in the water. Release; when the water temperature is high, the release of microbubbles in the water is reduced. At this time, the air pump is controlled to reduce the delivery of gas. Under the pullback action of the second elastic member 6, the second bubble tube 4 slides on the first bubble tube 3, so that the overall length of the second bubble tube 4 and the first bubble tube 3 is reduced, and the number of air outlet holes 5 in the water is reduced, thereby reducing the release of microbubbles in the water. The length of the first bubble tube 3 and the second bubble tube 4 (that is, the overall number of air outlet holes 5 on the first bubble tube 3 and the second bubble tube 4) can change according to the change of water temperature. The change in the number of air outlet holes 5 can adapt to the water temperature, which can effectively prevent the water surface from freezing.

[0036] The disadvantage of the prior art is that, when the water temperature changes greatly, it is necessary to adjust the number of air outlets 5 to adapt to the change in water temperature, thereby preventing the water surface from freezing. Since the number of air outlets 5 on the bubble generator is fixed, more bubbles cannot be generated according to the change in water temperature, thereby affecting the anti-icing effect of the water surface. In this embodiment, the gas is transported to each transmission tube body 2 through the air pump and the gas transmission tube body 1, and the transmission tube body 2 transports the gas to the first bubble tube 3 and the second bubble tube 4. Since the first bubble tube 3 and the second bubble tube 4 are both provided with air outlets 5, the gas is discharged into the water through the air outlets 5 to release a large number of microbubbles. The movement of the microbubbles in the water disturbs the water body to form heat exchange, and the microbubbles burst. The energy can also prevent the aggregation of ice crystals in the water, thereby effectively preventing the formation of ice layers. When the water temperature is low, it is necessary to increase the release of microbubbles in the water, push the second bubble tube 4 to slide on the first bubble tube 3, so that the overall length of the second bubble tube 4 and the first bubble tube 3 is increased, increase the number of air outlet holes 5 in the water, and then increase the release of microbubbles in the water. When the water temperature is high, the release of microbubbles in the water is reduced, push the second bubble tube 4 to slide on the first bubble tube 3, so that the overall length of the second bubble tube 4 and the first bubble tube 3 is reduced, reduce the number of air outlet holes 5 in the water, and then reduce the release of microbubbles in the water. By changing the water temperature, the number of air outlet holes 5 is adjusted to effectively prevent the water surface from freezing.

[0037] Furthermore, the gas delivery pipe body 1 is evenly provided with a plurality of thread grooves, and each of the transmission pipe bodies 2 is connected to the thread groove on the gas delivery pipe body 1 by a threaded connection; the transmission pipe body 2 is a telescopic structure such as a bellows structure or a telescopic tube, so that the length of the transmission pipe body 2 can be adjusted, and the transmission pipe body 2 is optionally divided into a first pipe body 7 and a second pipe body 8, the first pipe body 7 is installed in the thread groove in a threaded connection manner, the second pipe body 8 is slidingly sealed in the first pipe body 7, and a plurality of recessed holes 9 are evenly opened on the outer wall of the second pipe body 8, and a plurality of plug rods 10 are provided on the outer wall of the end of the first pipe body 7 away from the gas delivery pipe body 1, each of the plug rods 10 penetrates the second pipe body 8, and each of the plug rods 10 is plugged into and matched with the recessed holes 9 on the second pipe body 8, and a first elastic member 11 is sleeved on the outer wall of each of the plug rods 10, one end of each of the first elastic members 11 is connected to the corresponding plug rod 10, and the other end of each of the first elastic members 11 is connected to the outer wall of the first pipe body 7.

[0038] Specifically, when the number and position of the transmission tube bodies 2 on the gas transmission tube body 1 need to be adjusted, the transmission tube body 2 is connected to the thread groove of the gas transmission tube body 1 by threaded matching. Since the transmission tube body 2 is threadedly connected in the thread groove, when the number of the transmission tube bodies 2 needs to be reduced, the transmission tube body 2 can be screwed out of the gas transmission tube body 1, and then the thread groove on the gas transmission tube body 1 is sealed by a sealing nut (a nut with a sealing effect) or a sealing plug, so that the number and position of the transmission tube bodies 2 on the gas transmission tube body 1 can be adjusted. When the length of the transmission tube body 2 needs to be adjusted (that is, when the depth of the first bubble tube 3 and the second bubble tube 4 in the water needs to be adjusted), the staff pulls the insertion rod 10 on the first tube body 7 out of the recessed hole 9, so that the insertion rod 10 is against the first elastic member 11 (the first elastic member 11 is an original member that can be telescopically reset, The first elastic member 11 is preferably a spring) for stretching, so that the first elastic member 11 is in a stretched state, pushing the second tube body 8 to slide on the first tube body 7 until the length of the second tube body 8 and the first tube body 7 reaches a suitable length (that is, the overall length of the transmission tube body 2 reaches a suitable length), so that the first bubble tube 3 and the second bubble tube 4 on the second tube body 8 are extended into the water to a depth that reaches a suitable anti-icing position, and then the insertion rod 10 is released. Under the rebound effect of the first elastic member 11, the first elastic member 11 drives the insertion rod 10 to be inserted into the recessed hole 9, and the length of the transmission tube body 2 can be adjusted, so that the first bubble tube 3 and the second bubble tube 4 on the second tube body 8 can be extended to a suitable water depth position, so that the microbubbles released in the first bubble tube 3 and the second bubble tube 4 reach a suitable anti-icing position, which can effectively prevent the water surface from freezing.

[0039] Furthermore, a first air blowing tube 12 is slidably and sealably installed on the inner wall of the end of each of the first bubble tubes 3 away from the transmission tube body 2, a second air blowing tube 13 is slidably and sealably installed in each of the first air blowing tubes 12, and a third air blowing tube 14 is slidably and sealably installed in each of the second air blowing tubes 13, so that each of the first air blowing tubes 12, the second air blowing tubes 13 and the third air blowing tubes 14 form a tubular structure that can slide and retract; a connecting rod 15 is provided at the end of each of the second bubble tubes 4, and an auxiliary ring 16 is provided on the connecting rod 15, and the third air blowing tube 14 is rotatably installed in the auxiliary ring 16.

[0040] Specifically, when the gas is delivered to the first bubble tube 3, the gas pushes the second bubble tube 4 to slide on the first bubble tube 3, the second bubble tube 4 drives the connecting rod 15 and the auxiliary ring 16 to move, the auxiliary ring 16 drives the third air blowing tube 14 to slide on the second air blowing tube 13, when the third air blowing tube 14 slides to the end of its stroke on the second air blowing tube 13 (that is, the third air blowing tube 14 slides to the end of its end and the end of the second air blowing tube 13 abuts against each other), the second air blowing tube 13 slides on the first air blowing tube 12, and when the second bubble tube 4 slides to the end of its stroke on the first bubble tube 3 (that is, the end of the second bubble tube 4 abuts against the end of the first bubble tube 3), the second air blowing tube 1 The first air blowing tube 12 slides to the end of its stroke, so that the first air blowing tube 12, the second air blowing tube 13 and the third air blowing tube 14 can be extended and retracted, and the overall length of the first air blowing tube 12, the second air blowing tube 13 and the third air blowing tube 14 is adapted to the extension length of the first bubble tube 3 and the second bubble tube 4, so that the gas in the first bubble tube 3 can be transported to the end of the second bubble tube 4 through the first air blowing tube 12, the second air blowing tube 13 and the third air blowing tube 14, so that the gas can be transported, and the extension and retraction of the first air blowing tube 12, the second air blowing tube 13 and the third air blowing tube 14 are extended and retracted along with the extension and retraction of the first bubble tube 3 and the second bubble tube 4.

[0041] Furthermore, a plurality of raised follower blocks 17 are evenly arranged on the inner wall of the end of each of the second bubble tubes 4 along its circumferential direction, and the top of each of the follower blocks 17 is an arc-shaped inclined surface; each of the third air blowing tubes 14 is arranged at an angle, that is, the air outlet of the third air blowing tube 14 is arranged at an angle to align with the follower block 17, so that the gas blown out of the third air blowing tube 14 acts on the arc-shaped inclined surface at the top of the follower block 17, so that the arc-shaped inclined surface at the top of the follower block 17 is subjected to a greater force, and the air outlet part of each of the third air blowing tubes 14 is facing the arc-shaped inclined surface of the follower block 17.

[0042] Specifically, when the gas is transported from the first air blowing pipe 12, the second air blowing pipe 13 and the third air blowing pipe 14 to the end of the second bubble tube 4, the gas acts on the driven block 17, so that the arc-shaped inclined surface on the driven block 17 is pushed by the gas to rotate, so that the driven block 17 drives the second bubble tube 4 to rotate, so that the released microbubbles on the second bubble tube 4 rotate, so that the microbubbles can form a bubble spiral in the water, and the bubbles rise upward due to the buoyancy in the water. When the bubbles rise, the surrounding fluid is affected by the movement of the bubbles to form a rotating flow field, which will generate a rotating force on the bubbles, so that the bubbles continue to rotate and rise. In the water, the rotation speed of the bubbles is faster, and the bubble spiral formed is also faster, so that the bubbles can prevent the water surface from freezing. When the second bubble tube 4 rotates, the bubbles released in the second bubble tube 4 have a certain initial velocity, so that the coverage range of the bubbles is wider.

[0043] In another embodiment provided by the present invention, a dispersion unit is provided at the end of the second bubble tube 4, and the dispersion unit is used to disperse the bubbles. The dispersion unit includes a first spherical rod 18, and a first spherical rod 18 is provided at the center position of the end of each of the second bubble tubes 4. A driven rod 19 is movably installed on each of the first spherical rods 18, and two slide grooves 20 are provided on the outer wall of each of the driven rods 19. The two slide grooves 20 on the same driven rod 19 are symmetrically arranged about the axis of the gas delivery pipe body 1, and each of the A first slider 21 is slidably installed in each slide groove 20, and two straight grooves 22 are provided on the outer wall of the end of each second bubble tube 4. The two straight grooves 22 on the same second bubble tube 4 are symmetrically arranged about the axis of the gas delivery pipe body 1. A second slider 23 is slidably installed in each straight groove 22. Each first slider 21 is rotatably connected to the corresponding second slider 23 through a transmission rod 24. A dispersion circular plate 25 is provided on the driven rod 19, and a plurality of fan blades 26 are evenly arranged on the dispersion circular plate 25 along its circumferential direction.

[0044] Specifically, when the positions where the first bubble tube 3 and the second bubble tube 4 extend into the water are not perpendicular to the water surface, that is, the contact surface between the concrete dam 33 and the water surface is an inclined surface, the gas transmission pipe body 1 is installed on the concrete dam 33, and the transmission pipe body 2, the first bubble tube 3, and the second bubble tube 4 are parallel to the concrete dam 33, so that the positions where the transmission pipe body 2, the first bubble tube 3, and the second bubble tube 4 extend into the water are inclined surfaces (such as Fig.12 As shown in the figure, the water surface 34 of the dam body and the transmission pipe body 2, the first bubble tube 3 and the second bubble tube 4 are arranged at an angle. Since the transmission pipe body 2 is vertically arranged on the gas transmission pipe body 1, the gas transmission pipe body 1 and the water surface are arranged parallel to each other. Since the tube radius of the gas transmission pipe body 1 is greater than the radius of the transmission pipe body 2, the first bubble tube 3 and the second bubble tube 4 are suspended in the concrete dam 33. At this time, the transmission pipe body 2 and the water surface are not perpendicular to each other, but there is a certain angle between the transmission pipe body 2 and the water surface (that is, the first bubble tube 3 and the second bubble tube 4 and the concrete dam 33 and the concrete dam 33 are at an angle to each other). The dam 33 is parallel to each other), and the position of the driven rod 19 on the first spherical rod 18 (the end of the first spherical rod 18 connected to the second bubble tube 4 is cylindrical, and the other end of the first spherical rod 18 is a spherical surface, and one end of the spherical surface is movably connected to the driven rod 19), the driven rod 19 is rotated on the first spherical rod 18 by a certain angle, so that the driven rod 19 and the water surface are perpendicular to each other (because the driven rod 19 has a certain gravity, the driven rod 19 is in a vertical state with the water surface under the action of its own gravity, and the driven rod 19 is parallel to the vertical line 35 of the water surface, such as Fig.12As shown in FIG. 1 , during the process in which the driven rod 19 rotates a certain angle on the first spherical rod 18: the driven rod 19 drives the first slider 21 to slide in the slide groove 20, and at the same time, the driven rod 19 drives the second slider 23 to slide in the straight groove 22, so that the transmission rod 24 connected between the first slider 21 and the second slider 23 rotates a certain angle, so that the position and angle of the transmission rod 24, the first slider 21 and the second slider 23 change to adapt to the rotation angle of the driven rod 19 (as shown in FIG. 1 ). Figure 7 As shown in the figure, the driven rod 19 is always in a position parallel to the vertical line 35 of the water surface. The driven rod 19 and the dispersion circular plate 25 drive the fan blades 26 to rotate, which can drive the water flow to form a vortex, so that the vortex can drive the microbubbles released in the inclined first bubble tube 3 and the second bubble tube 4 to be transported perpendicular to the water surface. When the gas acts on the arc-shaped inclined surface on the driven block 17, the driven block 17 drives the second bubble tube 4 to rotate, and the transmission rod 24 passed by the second bubble tube 4 drives the driven rod 19 to rotate, and the driven rod 19 drives the dispersion circular plate 25 to rotate, and the dispersion circular plate 25 drives The moving blades 26 rotate, and the blades 26 can drive the water flow to form a vortex, so that the vortex drives the bubbles to move toward the water surface, which can effectively prevent the water surface from freezing. The vortex formed by the rotation of the blades 26 can prevent the bottom of the water from freezing, and can effectively prevent the bottom and the water surface from freezing, so that the vortex can drive the microbubbles released in the first bubble tube 3 and the second bubble tube 4 to perform stable transportation operations. The vortex generated when the blades 26 rotate can be relatively parallel to the vertical line 35 of the water surface, and can transport the microbubbles released in the first bubble tube 3 and the second bubble tube 4 to the water surface, which can prevent the water surface from freezing.

[0045] A square groove 27 is provided on each of the first sliding blocks 21 and each of the second sliding blocks 23, and a pressing block 28 is slidably installed in each of the square grooves 27. Each of the pressing blocks 28 and the inner wall of the corresponding square groove 27 are connected by a third elastic member 29. A ball 30 is rotatably installed on each of the pressing blocks 28. A plurality of arc grooves 31 are evenly provided in the two straight grooves 22 and the two slide grooves 20 of the second bubble tube 4, and each of the balls 30 and the corresponding arc grooves 31 are pressed against each other.

[0046] Specifically, during the process in which the driven rod 19 drives the first slider 21 to slide in the slide groove 20 and the second slider 23 to slide in the straight groove 22, the first slider 21 drives the pressing block 28 and the ball 30 to move in the slide groove 20, and the second slider 23 drives the pressing block 28 and the ball 30 to slide in the straight groove 22. When the first slider 21 slides to a suitable position in the slide groove 20, the ball 30 is pressed by the third elastic member 29 (the third elastic member 29 is a member capable of telescopic reset, preferably a spring). When the second slider 23 slides to a suitable position in the straight groove 22, the ball 30 is pressed against the arc groove 31 by the third elastic member 29, so that the ball 30 can position the second slider 23 to ensure the stability of the driven rod 19 after rotation, and the driven rod 19 will not rotate when the fan blades 26 rotate, thereby improving the rotation stability of the fan blades 26.

[0047] In another embodiment provided by the present invention, a plurality of slide grooves 20 are provided on the outer wall of each of the driven rods 19, a first slider 21 is slidably installed in each of the slide grooves 20, a plurality of straight grooves 22 are evenly provided on the outer wall of the end of each of the second bubble tubes 4 along its circumferential direction, a first slider 21 is slidably installed in each of the slide grooves 20, a second slider 23 is slidably installed in each of the straight grooves 22, and each of the first sliders 21 and the corresponding second slider 23 are rotatably connected via a second spherical rod 32.

[0048] Specifically, in another embodiment provided by the present invention, the driven rod 19 can only rotate in two directions (that is, the driven rod 19 can only rotate in the directions of the two slide grooves 20 and the two straight grooves 22). When the installation angle of the gas transmission pipe body 1 and the transmission pipe body 2 deviates from the water surface, due to the limited rotation angle of the driven rod 19, the driven rod 19 cannot be adjusted to be perpendicular to the water surface, so that the vortex generated by the rotation of the fan blades 26 affects the bubble spiral. At this time, the second spherical rod 32 (both ends of the second spherical rod 32 are spherical surfaces, and the two spherical surfaces of the second spherical rod 32 are connected by a cylindrical rod) is movably connected to the first slider 21 and the second slider 23 (that is, the second spherical rod 32 The spherical surface at one end is movably connected to the first slider 21, and the spherical surface at the other end of the second spherical rod 32 is movably connected to the second slider 23). The first slider 21 and the second slider 23 are connected by the second spherical rod 32, so that the rotation angle of the driven rod 19 is increased. Even if the installation angle of the gas transmission pipe body 1 and the transmission pipe body 2 and the water surface deviates, the driven rod 19 can be always perpendicular to the water surface by adjusting the angle of the driven rod 19, so that when the fan blades 26 rotate, vortices are generated at the bottom of the water, so that the vortices drive the bubbles to move vertically toward the water surface, which can effectively prevent the water surface from freezing. The vortices formed by the rotation of the fan blades 26 can prevent the bottom of the water from freezing, and can effectively prevent ice from forming on the bottom and the water surface.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A concrete dam anti-icing device, comprising an air pump, an air delivery pipe body and a transmission pipe body, wherein the output end of the air pump is connected to the air delivery pipe body, and the air delivery pipe body is evenly connected to a plurality of transmission pipe bodies, characterized in that: It also includes a bubble generating unit, the bubble generating unit includes a first bubble tube and a second bubble tube, each of the transmission tube bodies is equipped with a first bubble tube, each of the first bubble tubes is slidably and sealably equipped with a second bubble tube, each of the first bubble tubes and the second bubble tubes is evenly provided with a plurality of air outlet holes, and the number of the air outlet holes can be adjusted by adjusting the position of the second bubble tube on the first bubble tube; The gas delivery pipe body is evenly provided with a plurality of thread grooves, and each of the transmission pipe bodies is connected to the thread groove on the gas delivery pipe body by thread connection; A dispersion unit is provided at the end of the second bubble tube, and the dispersion unit is used to disperse the bubbles; The dispersion unit comprises a first spherical rod, a first spherical rod is arranged at the center position of the end of each of the second bubble tubes, a driven rod is movably installed on each of the first spherical rods, two slide grooves are arranged on the outer wall of each of the driven rods, the two slide grooves on the same driven rod are symmetrically arranged about the axis of the gas delivery pipe body, a first slider is slidably installed in each of the slide grooves, two straight grooves are arranged on the outer wall of the end of each of the second bubble tubes, the two straight grooves on the same second bubble tube are symmetrically arranged about the axis of the gas delivery pipe body, a second slider is slidably installed in each of the straight grooves, each of the first sliders is rotatably connected to the corresponding second slider via a transmission rod, a dispersion circular plate is arranged on the driven rod, and a plurality of fan blades are evenly arranged on the dispersion circular plate along its circumferential direction; A first air blowing tube is slidably and sealably mounted on the inner side wall of the end of each of the first bubble tubes away from the transmission tube body, a second air blowing tube is slidably and sealably mounted inside each of the first air blowing tubes, and a third air blowing tube is slidably and sealably mounted inside each of the second air blowing tubes, so that each of the first air blowing tubes, the second air blowing tubes and the third air blowing tubes form a tubular structure that can slide and retract; A connecting rod is provided at the end of each of the second bubble tubes, an auxiliary ring is provided on the connecting rod, and the third air blowing tube is rotatably installed in the auxiliary ring; A plurality of follower blocks are evenly arranged on the inner wall of the end of each of the second bubble tubes along the circumferential direction thereof, and the top of each of the follower blocks is an arc-shaped inclined surface; Each of the third air blowing pipes is arranged at an angle, and the air outlet portion of each of the third air blowing pipes faces the arc-shaped inclined surface of the driven block.

2. The concrete dam anti-icing device according to claim 1, characterized in that: The transmission tube body is a telescopic structure, and the length of the transmission tube body can be adjusted.

3. The anti-icing device for concrete dam according to claim 1, characterized in that: Each of the second bubble tubes is connected to the transmission tube body connected thereto via a second elastic member.

4. The anti-icing device for concrete dam according to claim 1, characterized in that: The gap between two connected air outlet holes arranged on each of the first bubble tube and the second bubble tube is smaller than the diameter of the air outlet hole.

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