Rotational flow restraining device

Abstract

The utility model relates to the technical field of water flow control, and discloses a rotational flow suppression device, which comprises a flow suppression impeller, a damping ring and a mounting shaft, the flow suppression impeller comprises a fixing frame and a plurality of blades, the fixing frame is provided with a mounting through hole arranged along the vertical direction, the plurality of blades are respectively fixed on the side part of the fixing frame, and the damping ring is arranged on the mounting shaft. A mounting through hole is formed in the fixing frame, the multiple blades are evenly distributed along the axis of the mounting through hole, the damping ring is coaxially mounted in the mounting through hole, the mounting shaft is sleeved with the damping ring, the mounting shaft is inserted into the mounting through hole in a penetrating mode, and the fixing frame can rotate relative to the mounting shaft. The vortex generator is simple in structure and capable of inhibiting generation of vortexes.

Description

Technical Field

[0001] This utility model relates to the field of water flow control technology, and in particular to a vortex suppression device. Background Technology

[0002] In aquaculture ponds or biochemical treatment ponds, eddies are often encountered due to the water flowing in the same direction. For example, when the water is drained through the drain at the bottom of the pond, eddies are easily generated, causing instability in the water. When eddies occur, they cause significant shaking and accelerated water flow. When the water flow speed exceeds a certain level, the organisms in the water may be unable to escape the high-speed water flow area, resulting in production losses and potential production accidents. Therefore, it is necessary to suppress the formation of eddies. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vortex suppression device with a simple structure that can suppress the generation of vortices.

[0004] To solve the above-mentioned technical problems, this utility model provides a swirl suppression device, including a swirl suppression impeller, a damping ring, and a mounting shaft. The swirl suppression impeller includes a fixed frame and multiple blades. The fixed frame has a vertically arranged mounting through hole. The multiple blades are respectively fixed to the side of the fixed frame and are evenly distributed along the axis of the mounting through hole. The damping ring is coaxially installed in the mounting through hole and is sleeved on the mounting shaft. The mounting shaft passes through the mounting through hole, and the fixed frame is rotatable relative to the mounting shaft.

[0005] As a preferred embodiment of this utility model, the side of the fixing frame is provided with a plurality of positioning grooves evenly distributed around the mounting through hole, and the plurality of blades are inserted into the plurality of positioning grooves in a corresponding manner.

[0006] As a preferred embodiment of this utility model, the blade is provided with a slot at one end near the fixing frame, and the slot is engaged with the fixing frame.

[0007] As a preferred embodiment of this utility model, the fixing frame includes a first panel and a second panel arranged in parallel from top to bottom, the mounting through holes are respectively provided on the first panel and the second panel, the positioning groove includes a first positioning groove provided on the side of the first panel and a second positioning groove provided on the side of the second panel, the positions of the first positioning groove and the second positioning groove are corresponding, and the slot includes a first slot that is engaged on the first panel and a second slot that is engaged on the second panel.

[0008] As a preferred embodiment of this utility model, the blades are welded to the first panel and the second panel respectively.

[0009] As a preferred embodiment of this utility model, the inner side of the mounting through hole is provided with a mounting groove that mates with the damping ring.

[0010] As a preferred embodiment of this utility model, the damping ring is a rubber ring.

[0011] As a preferred embodiment of this utility model, the flow-suppressing impeller is one of polypropylene, polyethylene, and polyvinyl chloride.

[0012] As a preferred embodiment of this utility model, the flow-suppressing impeller is made of metal or glass fiber.

[0013] This utility model provides a vortex suppression device. Compared with the prior art, its advantages are as follows: In use, the mounting shaft is fixed to the bottom of the pool and located on one side of the pool's drain outlet. The vortex suppressor is rotatably mounted on the mounting shaft, and a damping ring is installed in the mounting through hole of the vortex suppressor and sleeved on the mounting shaft. When the pool drains water through the drain outlet, the water in the pool flows towards the drain outlet, thereby driving the vortex suppressor to rotate around the mounting shaft. Due to the damping ring, the flow velocity of the water around the vortex suppressor will be lower than that of the water in other areas. When the velocity difference is sufficient, turbulence will be generated around the vortex suppressor, disrupting the orderly flow of water, thereby suppressing the formation of vortices and preventing damage to the pool or equipment caused by water sloshing due to vortex generation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the damping ring of this utility model installed in the mounting through hole;

[0016] Figure 3 This is an exploded structural diagram of the fixing frame and blades of this utility model;

[0017] In the figure, the flow-damping impeller is 1; the fixing frame is 11; the mounting through hole is 111; the positioning groove is 112; the mounting groove is 113; the blade is 12; the slot is 121; the first slot is 122; the second slot is 123; the first panel is 13; the first positioning groove is 131; the second panel is 14; the second positioning groove is 141; the damping ring is 2; and the mounting shaft is 3. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figure 1-3 As shown, a preferred embodiment of the present invention provides a swirling suppression device, comprising a stagnation-suppressing impeller 1, a damping ring 2, and a mounting shaft 3. The stagnation-suppressing impeller 1 includes a fixed frame 11 and multiple blades 12. The fixed frame 11 has a vertically arranged mounting through hole 111. The multiple blades 12 are respectively fixed to the side of the fixed frame 11. The multiple blades 12 are evenly distributed along the axis of the mounting through hole 111. Generally, the blades 12 are arranged radially along the mounting through hole 111. The damping ring 2 is coaxially installed in the mounting through hole 111 and is sleeved on the mounting shaft 3. The mounting shaft 3 is inserted into the mounting through hole 111. The fixed frame 11 can rotate relative to the mounting shaft 3.

[0021] The working principle of this embodiment is as follows: Figure 1-2 As shown, during use, the mounting shaft 3 is fixed to the bottom of the pool and located on one side of the pool's drain outlet. The flow-suppressing impeller 1 is rotatably mounted on the mounting shaft 3. A damping ring 2 is installed in the mounting through hole 111 of the flow-suppressing impeller 1 and sleeved on the mounting shaft 3. When the pool drains water through the drain outlet, the water in the pool flows towards the drain outlet, thereby driving the flow-suppressing impeller 1 to rotate around the mounting shaft 3. Due to the setting of the damping ring 2, the flow velocity of the water around the flow-suppressing impeller 1 will be lower than the flow velocity of the water in other areas. When the velocity difference is sufficient, turbulence will be generated around the flow-suppressing impeller 1, which will disrupt the orderly flow of water and thus suppress the formation of vortices, avoiding damage to the pool or equipment caused by the sloshing of water due to the generation of vortices.

[0022] For example, the side of the fixing frame 11 is provided with a plurality of positioning grooves 112 evenly distributed around the mounting through hole 111. A plurality of blades 12 are inserted into the plurality of positioning grooves 112 in a corresponding manner. The positioning and assembly of the fixing frame 11 and the blades 12 are facilitated by the cooperation between the blades 12 and the positioning grooves 112.

[0023] For example, the blade 12 is provided with a slot 121 at one end near the fixing frame 11. The slot 121 is engaged on the fixing frame 11. During assembly, the end of the blade 12 with the slot 121 is first inserted into the positioning groove 112, and then until the slot 121 is engaged on the fixing frame 11. At this time, the slot 121 cooperates with the fixing frame 11, which can restrict the blade 12 from moving vertically along the edge of the blade. The positioning groove 112 can prevent the blade 12 from moving to both sides of the positioning groove 112, so that the connection structure between the blade 12 and the fixing frame 11 is stable.

[0024] For example, the fixing frame 11 includes a first panel 13 and a second panel 14 arranged in parallel from top to bottom. The mounting through holes 111 are respectively provided on the first panel 13 and the second panel 14. The positioning groove 112 includes a first positioning groove 131 provided on the side of the first panel 13 and a second positioning groove 141 provided on the side of the second panel 14. The positions of the first positioning groove 131 and the second positioning groove 141 are corresponding. A blade 12 is inserted into a pair of corresponding first positioning grooves 131 and second positioning grooves 141. The slot 121 includes a first slot 122 that is locked on the first panel 13 and a second slot 123 that is locked on the second panel 14. The flow-suppressing impeller 1 has a simple structure and is easy to assemble.

[0025] For example, the blade 12 is welded to the first panel 13 and the second panel 14 respectively, so that the blade 12, the first panel 13 and the second panel 14 are fixedly connected to form a whole.

[0026] For example, the inner side of the mounting through hole 111 is provided with a mounting groove 113 that mates with the damping ring 2, which facilitates the installation of the damping ring 2.

[0027] For example, the damping ring 2 is a rubber ring, which has a good damping effect.

[0028] When the water flow speed in the application scenario is slow, for example, the flow-suppressing impeller 1 is made of a material with a density less than that of water, such as one of polypropylene, polyethylene, or polyvinyl chloride. In use, the top of the mounting shaft 3 is higher than the water surface, and the flow-suppressing impeller 1 and the damping ring 2 can be directly fitted onto the mounting shaft 3, so that the flow-suppressing impeller 1 floats halfway on the water surface and can rotate relative to the mounting shaft 3 to work normally.

[0029] When the water flow speed in the application scenario is relatively fast, for example, the flow-suppressing impeller 1 is made of a material with a density greater than that of water, such as metal or glass fiber, which has a better damping effect. The flow-suppressing impeller 1 and the damping ring 2 can be mounted on the mounting shaft 3 through bearings or sliding sleeves.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A swirl suppression device, characterized in that: The device includes a flow-suppressing impeller, a damping ring, and a mounting shaft. The flow-suppressing impeller includes a fixed frame and multiple blades. The fixed frame has a vertically arranged mounting through hole. The multiple blades are respectively fixed to the side of the fixed frame and are evenly distributed along the axis of the mounting through hole. The damping ring is coaxially installed in the mounting through hole and is sleeved on the mounting shaft. The mounting shaft passes through the mounting through hole, and the fixed frame is rotatable relative to the mounting shaft.

2. The swirl suppression device according to claim 1, characterized in that: The side of the fixing frame is provided with multiple positioning grooves evenly distributed around the mounting through hole, and multiple blades are inserted into the multiple positioning grooves one by one.

3. The swirl suppression device according to claim 2, characterized in that: The blade has a slot at one end near the fixed frame, and the slot is engaged with the fixed frame.

4. The swirl suppression device according to claim 3, characterized in that: The fixing frame includes a first panel and a second panel arranged in parallel from top to bottom. The mounting through holes are respectively provided on the first panel and the second panel. The positioning groove includes a first positioning groove provided on the side of the first panel and a second positioning groove provided on the side of the second panel. The positions of the first positioning groove and the second positioning groove are corresponding. The slot includes a first slot that is engaged on the first panel and a second slot that is engaged on the second panel.

5. The swirl suppression device according to claim 4, characterized in that: The blades are welded to the first panel and the second panel, respectively.

6. The swirl suppression device according to claim 1, characterized in that: The inner side of the mounting through hole is provided with a mounting groove that mates with the damping ring.

7. The swirl suppression device according to claim 1, characterized in that: The damping ring is a rubber ring.

8. The swirl suppression device according to claim 1, characterized in that: The flow-suppressing impeller is made of one of polypropylene, polyethylene, or polyvinyl chloride.

9. The swirl suppression device according to claim 1, characterized in that: The flow-suppressing impeller is made of metal or glass fiber.

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