Local vortex suppression facility

Abstract

The utility model discloses a local vortex suppression facility which comprises a vortex suppression mechanism and a vortex suppression mechanism, the vortex eliminating mechanism is arranged in a groove of the hydro-junction mechanism and used for reducing the vortex strength. The length L of the vortex eliminating mechanism is smaller than the width D of the groove of the hydro-junction mechanism; the height h of the vortex eliminating mechanism is 0.4-0.7 time of the normal water level h0; the width d of the vortex eliminating mechanism is 0.1-0.3 time of the length L of the vortex eliminating mechanism; on the premise that an original hydraulic building structure is not changed, the water flow state is optimized, the overflowing capacity is enhanced, the vortex elimination efficiency is improved, the installation and maintenance cost is low, benefits are high, the application range is wide, and installation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy engineering technical field especially is related to a local vortex breaking facility. BACKGROUND

[0002] Water conservancy engineering vortex breaking facility refers to the facility for reducing or eliminating vortex phenomenon in water flow, vortex phenomenon in water flow can cause energy loss and uneven flow velocity, affect the stability and efficiency of water flow, vortex breaking facility breaks the formation of vortex through specific design and technical means, makes water flow more uniform and stable.

[0003] The existing vortex breaking facility, such as CN2250977Y, discloses anti-vortex vortex breaking grid, anti-vortex vortex breaking grid is the device for preventing vortex generation and eliminating vortex in water inlet and flow passage in pump station, hydropower station and water gate and other water conservancy engineering. The bottom plate and the grid bar constitute the anti-vortex vortex breaking grid. The grid bar is arranged on the bottom plate. The bottom plate of the anti-vortex vortex breaking grid is connected and fixed on the wall, top and bottom of the water inlet and the flow passage, and the grid bar follows the direction of water flow. The vortex breaking facility in the prior art is vortex breaking grid or vortex breaking pier, which needs to pour the prefabricated facility together with the construction of the place where vortex needs to be broken, needs to change the original hydraulic structure, and destroys the vortex structure.

[0004] Therefore, the person skilled in the art urgently needs to provide a local vortex breaking facility for optimizing water flow pattern and enhancing flow capacity without changing the original hydraulic structure. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a local vortex breaking facility to solve the problems in the prior art.

[0006] A local vortex breaking facility, comprising: a vortex breaking mechanism; the vortex breaking mechanism is arranged in the groove of the water conservancy hub mechanism, and is used for reducing vortex intensity; the length L of the vortex breaking mechanism is less than the groove width D of the water conservancy hub mechanism; the height h of the vortex breaking mechanism is 0.4-0.7 times of normal water level h0; the width d of the vortex breaking mechanism is 0.1-0.3 times of the length L of the vortex breaking mechanism.

[0007] Preferably, the vortex elimination mechanism is a partial vortex elimination column in the shape of a cross section of a cross, the partial vortex elimination column in the shape of a cross includes a partial vortex elimination column in the shape of a cross outside, a partial vortex elimination column in the shape of a cross inside and an electric hydraulic push rod, the top surface of the partial vortex elimination column in the shape of a cross inside is open and the inner bottom surface is fixedly connected with a plurality of the electric hydraulic push rods, the bottom surface of the partial vortex elimination column in the shape of a cross outside is open and the inner top surface is fixedly connected with the pushing end of a plurality of the electric hydraulic push rods, the partial vortex elimination column in the shape of a cross outside is sleeved outside the partial vortex elimination column in the shape of a cross inside, the partial vortex elimination column in the shape of a cross inside is arranged at the center position in the groove of the water conservancy hub mechanism, the length L of the partial vortex elimination column in the shape of a cross outside is smaller than the groove width D of the water conservancy hub mechanism, the electric hydraulic push rod pushes the partial vortex elimination column in the shape of a cross outside upwards to the highest end, the height h of the highest end is 0.5 times of the normal water level h0, and the width d of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside is respectively 0.1 times of the length L of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside.

[0008] Preferably, the vortex elimination mechanism is a partial vortex elimination column in the shape of a cross section of a cross, the partial vortex elimination column in the shape of a cross includes a partial vortex elimination column in the shape of a cross outside, a partial vortex elimination column in the shape of a cross inside and an electric hydraulic push rod, the top surface of the partial vortex elimination column in the shape of a cross inside is open and the inner bottom surface is fixedly connected with a plurality of the electric hydraulic push rods, the bottom surface of the partial vortex elimination column in the shape of a cross outside is open and the inner top surface is fixedly connected with the pushing end of a plurality of the electric hydraulic push rods, the partial vortex elimination column in the shape of a cross outside is sleeved outside the partial vortex elimination column in the shape of a cross inside, the partial vortex elimination column in the shape of a cross inside is arranged at the center position in the groove of the water conservancy hub mechanism, the length L of the partial vortex elimination column in the shape of a cross outside is smaller than the groove width D of the water conservancy hub mechanism, the height h of the highest end is 0.5 times of the normal water level h0, and the width d of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside is respectively 0.1 times of the length L of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside.

[0009] Preferably, the vortex elimination mechanism is a partial vortex elimination column in the shape of a cross section of a cross, the partial vortex elimination column in the shape of a cross includes a partial vortex elimination column in the shape of a cross outside, a partial vortex elimination column in the shape of a cross inside and an electric hydraulic push rod, the top surface of the partial vortex elimination column in the shape of a cross inside is open and the inner bottom surface is fixedly connected with a plurality of the electric hydraulic push rods, the bottom surface of the partial vortex elimination column in the shape of a cross outside is open and the inner top surface is fixedly connected with the pushing end of a plurality of the electric hydraulic push rods, the partial vortex elimination column in the shape of a cross outside is sleeved outside the partial vortex elimination column in the shape of a cross inside, the partial vortex elimination column in the shape of a cross inside is arranged at the center position in the groove of the water conservancy hub mechanism, the length L of the partial vortex elimination column in the shape of a cross outside is smaller than the groove width D of the water conservancy hub mechanism, the height h of the highest end is 0.5 times of the normal water level h0, and the width d of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside is respectively 0.1 times of the length L of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside.

[0010] Preferably, the vortex elimination mechanism is a partial vortex elimination column in the shape of a cross section of a cross, the partial vortex elimination column in the shape of a cross includes a partial vortex elimination column in the shape of a cross outside, a partial vortex elimination column in the shape of a cross inside and an electric hydraulic push rod, the top surface of the partial vortex elimination column in the shape of a cross inside is open and the inner bottom surface is fixedly connected with a plurality of the electric hydraulic push rods, the bottom surface of the partial vortex elimination column in the shape of a cross outside is open and the inner top surface is fixedly connected with the pushing end of a plurality of the electric hydraulic push rods, the partial vortex elimination column in the shape of a cross outside is sleeved outside the partial vortex elimination column in the shape of a cross inside, the partial vortex elimination column in the shape of a cross inside is arranged at the center position in the groove of the water conservancy hub mechanism, the length L of the partial vortex elimination column in the shape of a cross outside is smaller than the groove width D of the water conservancy hub mechanism, the height h of the highest end is 0.5 times of the normal water level h0, and the width d of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside is respectively 0.1 times of the length L of the partial vortex elimination column in the shape of a cross outside and the partial vortex elimination column in the shape of a cross inside.

[0011] Preferably, the vortex-damping mechanism is a cross-shaped partial vortex-damping column with a cross-shaped cross section, which is arranged at a central position in the groove of the water conservancy hub mechanism; the length L of the cross-shaped partial vortex-damping column is smaller than the groove width D of the water conservancy hub mechanism; the height h of the cross-shaped partial vortex-damping column is 0.5 times the normal water level h0; and the width d of the cross-shaped partial vortex-damping column is 0.1 times the length L of the cross-shaped partial vortex-damping column.

[0012] Preferably, the vortex-damping mechanism is a W-shaped partial vortex-damping column with a W-shaped cross section, which is arranged at a central position in the groove of the water conservancy hub mechanism; the length L of the W-shaped partial vortex-damping column is smaller than the groove width D of the water conservancy hub mechanism; the height h of the W-shaped partial vortex-damping column is 0.5 times the normal water level h0; and the width d of the W-shaped partial vortex-damping column is 0.1 times the length L of the W-shaped partial vortex-damping column.

[0013] Preferably, the vortex-damping mechanism is an M-shaped partial vortex-damping column with an M-shaped cross section, which is arranged at a central position in the groove of the water conservancy hub mechanism; the length L of the M-shaped partial vortex-damping column is smaller than the groove width D of the water conservancy hub mechanism; the height h of the M-shaped partial vortex-damping column is 0.5 times the normal water level h0; and the width d of the M-shaped partial vortex-damping column is 0.1 times the length L of the M-shaped partial vortex-damping column.

[0014] Preferably, the water conservancy hub mechanism is a gate.

[0015] Preferably, the water conservancy hub mechanism is a triangular labyrinth side weir, and the groove of the triangular labyrinth side weir is provided with a plurality of V-shaped grooves.

[0016] Compared with the prior art, the partial vortex-damping facility has the following beneficial effects:

[0017] 1. The water flow state is optimized, the flow capacity is enhanced, and the vortex-damping efficiency is improved without changing the original water conservancy structure.

[0018] 2. The installation and maintenance cost is low, the benefit is high, the application range is wide, and the installation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a top view structure schematic diagram of the gate and the rice-shaped partial vortex elimination column of the utility model;

[0021] Figure 2 It is a front view structure schematic diagram of the gate and the rice-shaped partial vortex elimination column of the utility model;

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the gate and the rice-shaped partial vortex elimination column of the utility model;

[0023] Figure 4 It is a top view structure schematic diagram of the triangular labyrinth side weir and the rice-shaped partial vortex elimination column of the utility model;

[0024] Figure 5 It is a front view structure schematic diagram of the triangular labyrinth side weir and the rice-shaped partial vortex elimination column of the utility model;

[0025] Figure 6 It is a three-dimensional structure schematic diagram of the triangular labyrinth side weir and the rice-shaped partial vortex elimination column of the utility model;

[0026] Figure 7 It is a top view of the rice-shaped partial vortex elimination column of the utility model;

[0027] Figure 8 It is an exploded structure schematic diagram of the rice-shaped partial vortex elimination column of the utility model;

[0028] Figure 9 It is a three-dimensional view of the rice-shaped partial vortex elimination column of the utility model;

[0029] Figure 10 It is a top view of the T-shaped partial vortex elimination column of the utility model;

[0030] Figure 11 It is a three-dimensional view of the T-shaped partial vortex elimination column of the utility model;

[0031] Figure 12 It is a top view of the inverted T-shaped partial vortex elimination column of the utility model;

[0032] Figure 13 It is a three-dimensional view of the inverted T-shaped partial vortex elimination column of the utility model;

[0033] Figure 14 It is a top view of the Z-shaped partial vortex elimination column of the utility model;

[0034] Figure 15 It is a three-dimensional view of the Z-shaped partial vortex elimination column of the utility model;

[0035] Figure 16 It is a top view of the cross-shaped partial vortex elimination column of the utility model;

[0036] Figure 17The utility model discloses a cross type local vortex elimination stand three-dimensional view.

[0037] Figure 18 The utility model discloses a W type local vortex elimination stand plan view.

[0038] Figure 19 The utility model discloses a W type local vortex elimination stand three-dimensional view.

[0039] Figure 20 The utility model discloses an M type local vortex elimination stand plan view.

[0040] Figure 21 The utility model discloses an M type local vortex elimination stand three-dimensional view.

[0041] Figure 22 The utility model discloses a gate and rice character type local vortex elimination stand numerical simulation schematic view.

[0042] Figure 23 The utility model discloses a triangular labyrinth side weir and rice character type local vortex elimination stand numerical simulation schematic view.

[0043] Wherein: 1 is vortex elimination mechanism;101 is rice character type local vortex elimination stand;1011 is rice character type local vortex elimination outer stand;1012 is rice character type local vortex elimination inner stand;1013 is electric hydraulic push rod;102 is T type local vortex elimination stand;103 is inverted T type local vortex elimination stand;104 is Z type local vortex elimination stand;105 is cross type local vortex elimination stand;106 is W type local vortex elimination stand;107 is M type local vortex elimination stand;2 is water conservancy hub mechanism;201 is gate;202 is triangular labyrinth side weir. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative work are within the protection scope of the utility model.

[0045] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail with reference to the drawings and specific embodiments.

[0046] As Figures 1-6As shown, a local vortex elimination facility comprises: a vortex elimination mechanism 1; the vortex elimination mechanism 1 is arranged in a groove of a water conservancy hub mechanism 2 for reducing the vortex intensity; the length L of the vortex elimination mechanism 1 is less than the groove width D of the water conservancy hub mechanism 2; the height h of the vortex elimination mechanism 1 is 0.4-0.7 times of the normal water level h0; the width d of the vortex elimination mechanism 1 is 0.1-0.3 times of the length L of the vortex elimination mechanism 1.

[0047] In the utility model, the vortex elimination mechanism 1 is metal material; the setting number of the vortex elimination mechanism 1 is equal to the groove number of the water conservancy hub mechanism 2; the vortex elimination mechanism 1 is pre-buried at the vortex elimination place of the groove of the hub mechanism 2, and the multiple relationship between the vortex elimination mechanism 1, the water conservancy hub mechanism 2 and the normal water level h0 is used to achieve the vortex elimination effect; the vortex structure can be damaged without changing the original hydraulic structure, thereby optimizing the water flow state, enhancing the flow capacity, reducing the water flow pulsation and preventing the floating objects from being sucked and other problems.

[0048] Embodiment 1: as shown in the figure, Figures 7-9 The vortex elimination mechanism 1 is a local vortex elimination column 101 of a rice character type; the local vortex elimination column 101 of the rice character type comprises a local vortex elimination outer column 1011 of the rice character type, a local vortex elimination inner column 1012 of the rice character type and an electric hydraulic push rod 1013; the top surface of the local vortex elimination inner column 1012 of the rice character type is open, and the inner bottom surface is fixedly connected with a plurality of the electric hydraulic push rods 1013; the bottom surface of the local vortex elimination outer column 1011 of the rice character type is open, and the inner top surface is fixedly connected with the pushing end of a plurality of the electric hydraulic push rods 1013; the local vortex elimination outer column 1011 of the rice character type is sleeved outside the local vortex elimination inner column 1012 of the rice character type; the local vortex elimination inner column 1012 of the rice character type is arranged at the central position in the groove of the water conservancy hub mechanism 2; the length L of the local vortex elimination outer column 1011 of the rice character type is less than the groove width D of the water conservancy hub mechanism 2; the height h of the local vortex elimination outer column 1011 of the rice character type pushed upward by the electric hydraulic push rod 1013 to the highest end is 0.5 times of the normal water level h0; the width d of the local vortex elimination outer column 1011 of the rice character type and the local vortex elimination inner column 1012 of the rice character type is respectively 0.1 times of the length L of the local vortex elimination outer column 1011 of the rice character type and the local vortex elimination inner column 1012 of the rice character type.

[0049] As shown in the figure, Figures 1-3 And Figure 22 As shown in the figure, the water conservancy hub mechanism 2 is a gate 201, and the local vortex elimination inner column 1012 of the rice character type is arranged in the gate groove of the gate 201.

[0050] As shown in the figure, Figures 4-6 And Figure 23As shown, the water conservancy hub mechanism 2 is a triangular labyrinth side weir 202, and the grooves of the triangular labyrinth side weir 202 are provided with multiple V-shaped grooves; the grooves of the triangular labyrinth side weir 202 are provided with the local partial vortex elimination inner column 1012 in the form of a rice character.

[0051] In example 1, the electric hydraulic push rod 1013 drives the rice character-shaped local partial vortex elimination outer column 1011 to ascend and descend along the outer side of the rice character-shaped local partial vortex elimination inner column 1012; the electric hydraulic push rod 1013 has an IP68 or higher protection level; when the vortex is not needed to be eliminated, the electric hydraulic push rod 1013 drives the rice character-shaped local partial vortex elimination outer column 1011 to descend to be in close contact with the rice character-shaped local partial vortex elimination inner column 1012, so as to increase the flow velocity of the water flow; Figure 15 The numerical simulation result of the rice character-shaped local partial vortex elimination column 101 in the gate groove of the gate 201 is shown in the figure with a rice character; Figure 16 The numerical simulation result of the rice character-shaped local partial vortex elimination column 101 in the groove of the triangular labyrinth side weir 202 is shown in the figure with a rice character; it can be seen from the comparison between the figure with a rice character and the figure with a conventional character that, by destroying the vortex structure, cutting off the tangential and radial flow paths, and destroying the energy transport path of the vortex and enhancing the viscous loss, the energy loss of the vortex can be increased, the vortex dissipation area can be accelerated, the flow velocity distribution in the upper half part changes obviously, the change in the lower half part is less than that in the upper half part, the flow velocity distribution in the region is lower than that of other characters, the flow velocity distribution in the region is lower than that of other characters, and the flow velocity distribution in the region is lower than that of other characters; the flow velocity and the flow direction are optimized, so as to improve the uniformity of the flow velocity and the pressure, reduce or eliminate the generation of the vortex, reduce the influence of the vortex on the function of the hydraulic engineering facility, and improve the stability and safety of the hydraulic engineering facility.

[0052] Example 2: as shown in Figure 10 , Figure 11 , Figure 22 and Figure 23 , the vortex elimination mechanism 1 is a T-shaped local partial vortex elimination column 102, which is arranged at the center position in the groove of the water conservancy hub mechanism 2; the length L of the T-shaped local partial vortex elimination column 102 is less than the groove width D of the water conservancy hub mechanism 2; the height h of the T-shaped local partial vortex elimination column 102 is 0.5 times the normal water level h0; and the width d of the T-shaped local partial vortex elimination column 102 is 0.1 times the length L of the T-shaped local partial vortex elimination column 102.

[0053] In example 2, Figure 22 The numerical simulation result of the T-shaped local partial vortex elimination column 102 in the gate groove of the gate 201 is shown in the figure with a T character; Figure 23The T-shaped small graph in the figure is the numerical simulation result of the T-shaped partial vortex elimination column 102 in the groove of the triangular labyrinth side weir 202. The T-shaped small graph in the figure is compared with the conventional small graph, and it can be seen that the flow velocity in the area is reduced to a certain extent, and the distribution is relatively uniform. The flow velocity is reduced and the flow direction is optimized, so as to improve the uniformity of the flow velocity and the pressure, reduce or eliminate the generation of vortex, reduce the influence of vortex on the function of hydraulic facilities, and improve the stability and safety of the hydraulic facilities.

[0054] Embodiment 3: as shown in Figure 12 , Figure 13 , Figure 22 and Figure 23 , the vortex elimination mechanism 1 is a T-shaped partial vortex elimination column 103, which is arranged at the center position in the groove of the water conservancy hub mechanism 2; the length L of the T-shaped partial vortex elimination column 103 is less than the groove width D of the water conservancy hub mechanism 2; the height h of the T-shaped partial vortex elimination column 103 is 0.5 times the normal water level h0; the width d of the T-shaped partial vortex elimination column 103 is 0.1 times the length L of the T-shaped partial vortex elimination column 103.

[0055] In embodiment 3, Figure 22 the T-shaped small graph in the figure is the numerical simulation result of the T-shaped partial vortex elimination column 103 in the gate groove of the gate 201; Figure 23 the T-shaped small graph in the figure is the numerical simulation result of the T-shaped partial vortex elimination column 103 in the groove of the triangular labyrinth side weir 202; the T-shaped small graph in the figure is compared with the conventional small graph, and it can be seen that the vortex elimination effect of the T-shaped partial vortex elimination column 103 mainly reflects the upper half of the area, and the flow velocity is kept at a low level, and the flow velocity distribution in the lower half of the area is slightly inferior to that in the upper half; the flow velocity is reduced and the flow direction is optimized, so as to improve the uniformity of the flow velocity and the pressure, reduce or eliminate the generation of vortex, reduce the influence of vortex on the function of hydraulic facilities, and improve the stability and safety of the hydraulic facilities.

[0056] Embodiment 4: as shown in Figure 14 , Figure 15 , Figure 22 and Figure 23 , the vortex elimination mechanism 1 is a Z-shaped partial vortex elimination column 104, which is arranged at the center position in the groove of the water conservancy hub mechanism 2; the length L of the Z-shaped partial vortex elimination column 104 is less than the groove width D of the water conservancy hub mechanism 2; the height h of the Z-shaped partial vortex elimination column 104 is 0.5 times the normal water level h0; the width d of the Z-shaped partial vortex elimination column 104 is 0.1 times the length L of the Z-shaped partial vortex elimination column 104.

[0057] In Example 4, Figure 22 The numerical simulation results of the Z-shaped partial vortex-damping column 104 in the gate groove of the gate 201 are shown in the Z-shaped small graph in the figure; Figure 23 The numerical simulation results of the Z-shaped partial vortex-damping column 104 in the groove of the triangular labyrinth side weir 202 are shown in the Z-shaped small graph in the figure; the Z-shaped small graph and the conventional small graph are compared, and it can be seen that the overall flow rate is reduced, and the effect is similar to the W-shaped; the flow rate is reduced and the flow direction is optimized, so as to improve the uniformity of the flow rate and the pressure, so as to reduce or eliminate the generation of vortex, thereby reducing the influence of vortex on the function of the hydraulic structure, and improving the stability and safety of the hydraulic structure.

[0058] Example 5: as shown in Figure 16 , Figure 17 , Figure 22 and Figure 23 , the vortex-damping mechanism 1 is a cross-shaped partial vortex-damping column 105, which is arranged at the center position in the groove of the water conservancy hub mechanism 2; the length L of the cross-shaped partial vortex-damping column 105 is less than the groove width D of the water conservancy hub mechanism 2; the height h of the cross-shaped partial vortex-damping column 105 is 0.5 times the normal water level h0; the width d of the cross-shaped partial vortex-damping column 105 is 0.1 times the length L of the cross-shaped partial vortex-damping column 105.

[0059] In Example 5, Figure 22 The numerical simulation results of the Z-shaped partial vortex-damping column 104 in the gate groove of the gate 201 are shown in the Z-shaped small graph in the figure; Figure 23 The numerical simulation results of the Z-shaped partial vortex-damping column 104 in the groove of the triangular labyrinth side weir 202 are shown in the Z-shaped small graph in the figure; the Z-shaped small graph and the conventional small graph are compared, and it can be seen that the overall flow rate is reduced, and the effect is similar to the W-shaped; the flow rate is reduced and the flow direction is optimized, so as to improve the uniformity of the flow rate and the pressure, so as to reduce or eliminate the generation of vortex, thereby reducing the influence of vortex on the function of the hydraulic structure, and improving the stability and safety of the hydraulic structure.

[0060] Example 6: as shown in Figure 18 , Figure 19 , Figure 22 and Figure 23As shown, the vortex elimination mechanism 1 is a W-shaped partial vortex elimination column 106, which is arranged at the center position in the groove of the water conservancy hub mechanism 2; the length L of the W-shaped partial vortex elimination column 106 is smaller than the groove width D of the water conservancy hub mechanism 2; the height h of the W-shaped partial vortex elimination column 106 is 0.5 times the normal water level h0; and the width d of the W-shaped partial vortex elimination column 106 is 0.1 times the length L of the W-shaped partial vortex elimination column 106.

[0061] In example 6, Figure 22 The W-shaped small graph in the figure is the numerical simulation result of the W-shaped partial vortex elimination column 106 in the gate groove of the gate 201. Figure 23 The M-shaped small graph in the figure is the numerical simulation result of the M-shaped partial vortex elimination column 107 in the groove of the triangular labyrinth side weir 202; the M-shaped small graph in the figure is compared with the conventional small graph, and it can be seen that the flow velocity at the edge is reduced; the flow velocity is reduced and the flow direction is optimized, so as to improve the uniformity of the flow velocity and the pressure, so as to reduce or eliminate the generation of vortex, thereby reducing the influence of vortex on the function of the hydraulic engineering facility, and improving the stability and safety of the hydraulic engineering facility.

[0062] Example 7: as Figure 20 , Figure 21 , Figure 22 and Figure 23 As shown, the vortex elimination mechanism 1 is an M-shaped partial vortex elimination column 107, which is arranged at the center position in the groove of the water conservancy hub mechanism 2; the length L of the M-shaped partial vortex elimination column 107 is smaller than the groove width D of the water conservancy hub mechanism 2; the height h of the M-shaped partial vortex elimination column 107 is 0.5 times the normal water level h0; and the width d of the M-shaped partial vortex elimination column 107 is 0.1 times the length L of the M-shaped partial vortex elimination column 107.

[0063] In example 7, Figure 22 The M-shaped small graph in the figure is the numerical simulation result of the M-shaped partial vortex elimination column 107 in the gate groove of the gate 201. Figure 23 The M-shaped small graph in the figure is the numerical simulation result of the M-shaped partial vortex elimination column 107 in the groove of the triangular labyrinth side weir 202; the M-shaped small graph in the figure is compared with the conventional small graph, and it can be seen that the vortex elimination effect of this shape mainly reflects the upper half of the region, the flow velocity is maintained at a low level, and the flow velocity distribution in the lower half of the region is slightly inferior to that in the upper half; the flow velocity is reduced and the flow direction is optimized, so as to improve the uniformity of the flow velocity and the pressure, so as to reduce or eliminate the generation of vortex, thereby reducing the influence of vortex on the function of the hydraulic engineering facility, and improving the stability and safety of the hydraulic engineering facility.

[0064] In the utility model, the T-shaped local vortex-damping column 102, the inverted T-shaped local vortex-damping column 103, the Z-shaped local vortex-damping column 104, the cross-shaped local vortex-damping column 105, the W-shaped local vortex-damping column 106 and the M-shaped local vortex-damping column 107 can be arranged in the groove of the gate 201 or the triangular labyrinth lateral weir 202 according to the structure of the local vortex-damping column 101, and can be lifted according to the internal and external structures of the local vortex-damping column 101; the W-shaped local vortex-damping column 106 and the Z-shaped local vortex-damping column 104 arranged in the gate groove have more uniform flow velocity distribution than other vortex-damping mechanisms 1; the local vortex-damping column 101 arranged in the groove of the triangular labyrinth lateral weir has more uniform flow velocity distribution than other vortex-damping mechanisms.

[0065] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0066] The above-described embodiments are only preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical scheme of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope of the utility model.

Claims

1. A local de-swirler device, characterized in that include: Vortex suppression mechanism (1); The vortex-reducing mechanism (1) is installed in the groove of the hydraulic hub mechanism (2) to reduce the intensity of the vortex; The length L of the vortex-eliminating mechanism (1) is less than the groove width D of the hydraulic hub mechanism (2); the height h of the vortex-eliminating mechanism (1) is 0.4-0.7 times the normal water level h0; the width d of the vortex-eliminating mechanism (1) is 0.1-0.3 times the length L of the vortex-eliminating mechanism (1).

2. A localised vortex mitigation device according to claim 1, wherein: The vortex-eliminating mechanism (1) is a cross-section of a cross-section with a cross-shaped local vortex-eliminating column (101); The cross-shaped local vortex-eliminating column (101) includes a cross-shaped local vortex-eliminating outer column (1011), a cross-shaped local vortex-eliminating inner column (1012), and an electro-hydraulic push rod (1013); the top surface of the cross-shaped local vortex-eliminating inner column (1012) is open and its inner bottom surface is fixedly connected to multiple electro-hydraulic push rods (1013); the bottom surface of the cross-shaped local vortex-eliminating outer column (1011) is open and its inner top surface is fixedly connected to the pushing end of multiple electro-hydraulic push rods (1013); the cross-shaped local vortex-eliminating outer column (1011) is sleeved on the outside of the cross-shaped local vortex-eliminating inner column (1012); The cross-shaped local vortex-eliminating inner column (1012) is located at the center of the groove in the water conservancy hub structure (2); The length L of the cross-shaped local vortex-eliminating outer column (1011) is less than the groove width D of the hydraulic hub mechanism (2); the electric hydraulic push rod (1013) pushes the cross-shaped local vortex-eliminating outer column (1011) upward to a height h at the highest point, which is 0.5 times the normal water level h0; the width d of the cross-shaped local vortex-eliminating outer column (1011) and the cross-shaped local vortex-eliminating inner column (1012) are 0.1 times the length L of the cross-shaped local vortex-eliminating outer column (1011) and the cross-shaped local vortex-eliminating inner column (1012), respectively.

3. A localised vortex mitigation device according to claim 1, wherein: The vortex-eliminating mechanism (1) is a T-shaped local vortex-eliminating column (102) with a T-shaped cross-section. The T-shaped local vortex-eliminating column (102) is located at the center of the groove of the water conservancy hub mechanism (2). The length L of the T-shaped local vortex-eliminating column (102) is less than the groove width D of the hydraulic hub mechanism (2); the height h of the T-shaped local vortex-eliminating column (102) is 0.5 times the normal water level h0; the width d of the T-shaped local vortex-eliminating column (102) is 0.1 times the length L of the T-shaped local vortex-eliminating column (102).

4. A localised vortex mitigation device according to claim 1, wherein: The vortex-eliminating mechanism (1) is an inverted T-shaped local vortex-eliminating column (103) with an inverted T-shaped cross section. The inverted T-shaped local vortex-eliminating column (103) is located at the center of the groove in the water conservancy hub mechanism (2). The length L of the inverted T-shaped local vortex elimination column (103) is less than the groove width D of the water conservancy hub mechanism (2); the height h of the inverted T-shaped local vortex elimination column (103) is 0.5 times the normal water level h0; and the width d of the inverted T-shaped local vortex elimination column (103) is 0.1 times the length L of the inverted T-shaped local vortex elimination column (103).

5. A localised vortex mitigation device according to claim 1, wherein: The vortex elimination mechanism (1) is a Z-shaped local vortex elimination column (104) with a Z-shaped cross section, which is arranged at the center position in the groove of the water conservancy hub mechanism (2). The length L of the Z-shaped local vortex elimination column (104) is less than the groove width D of the water conservancy hub mechanism (2); the height h of the Z-shaped local vortex elimination column (104) is 0.5 times the normal water level h0; and the width d of the Z-shaped local vortex elimination column (104) is 0.1 times the length L of the Z-shaped local vortex elimination column (104).

6. A localised vortex mitigation device according to claim 1, wherein: The vortex elimination mechanism (1) is a cross-shaped local vortex elimination column (105) with a cross-shaped cross section, which is arranged at the center position in the groove of the water conservancy hub mechanism (2). The length L of the cross-shaped local vortex elimination column (105) is less than the groove width D of the water conservancy hub mechanism (2); the height h of the cross-shaped local vortex elimination column (105) is 0.5 times the normal water level h0; and the width d of the cross-shaped local vortex elimination column (105) is 0.1 times the length L of the cross-shaped local vortex elimination column (105).

7. A localised vortex mitigation device according to claim 1, wherein: The vortex elimination mechanism (1) is a W-shaped local vortex elimination column (106) with a W-shaped cross section, which is arranged at the center position in the groove of the water conservancy hub mechanism (2). The length L of the W-shaped local vortex elimination column (106) is less than the groove width D of the water conservancy hub mechanism (2); the height h of the W-shaped local vortex elimination column (106) is 0.5 times the normal water level h0; and the width d of the W-shaped local vortex elimination column (106) is 0.1 times the length L of the W-shaped local vortex elimination column (106).

8. A localised vortex mitigation device according to claim 1, wherein: The vortex elimination mechanism (1) is an M-shaped local vortex elimination column (107) with an M-shaped cross section, which is arranged at the center position in the groove of the water conservancy hub mechanism (2). The length L of the M-shaped local vortex elimination column (107) is less than the groove width D of the water conservancy hub mechanism (2); the height h of the M-shaped local vortex elimination column (107) is 0.5 times the normal water level h0; and the width d of the M-shaped local vortex elimination column (107) is 0.1 times the length L of the M-shaped local vortex elimination column (107).

9. A localised vortex mitigation device according to any one of claims 2 to 8, wherein: The water conservancy hub mechanism (2) is a gate (201).

10. A localised vortex mitigation device according to any one of claims 2 to 8, wherein: The water conservancy hub mechanism (2) is a triangular labyrinth side weir (202), and the groove of the triangular labyrinth side weir (202) is provided with a plurality of V-shaped grooves.

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