Rotational flow well inner barrel supporting and anti-floating structure

Abstract

The invention belongs to the technical field of rotational flow wells, and particularly relates to a rotational flow well inner barrel supporting and anti-floating structure which comprises a rotational flow well inner barrel, a rotational flow well outer barrel and a water suction well, a flow stabilizing plate is arranged at the bottom of the rotational flow well inner barrel, and the outer side of the flow stabilizing plate is connected with the inner wall of the rotational flow well outer barrel; the bottom of the flow stabilizing plate is arranged on a foundation slab of a rotational flow well outer barrel, and the inner side of the flow stabilizing plate is of a variable cross-section structure. Compared with the prior art, the flow stabilizing plate is subjected to variable cross-section treatment, the bottom space is reserved, slag grabbing of the grab bucket is facilitated, and meanwhile collision of the grab bucket to the flow stabilizing plate can be reduced. A circle of annular plate is arranged on the outer cylinder wall of the rotational flow well, inclined columns and inclined walls are arranged on the annular plate, the annular plate, the inclined columns and the inclined walls form a whole, and counter weights are added in the well depth range of the rotational flow well to resist buoyancy.

Description

Technical Field

[0001] This invention belongs to the field of vortex well technology, specifically relating to a vortex well inner cylinder support and anti-buoyancy structure. Background Technology

[0002] For cyclone wells with an inner cylinder, the inner cylinder wall generally does not need to extend to the bottom plate due to process requirements. In order to support the inner cylinder wall, a varying number of flow stabilizing plates need to be installed on the bottom plate to support the inner cylinder. The number of flow stabilizing plates is determined according to the diameter of the outer cylinder wall of the cyclone well. When the diameter is less than or equal to 20m, 8 plates are installed, and when the diameter is greater than 20m but less than or equal to 30m, 10 plates are installed.

[0003] The conventional method for using a flow stabilizer plate involves connecting its outer side to the outer wall of the cyclone well, with its bottom resting on the foundation slab, extending 50mm beyond the inner cylinder wall along its length. However, during use, this method has been found to have several drawbacks. Firstly, the grab bucket's swaying motion causes it to shake from side to side when grabbing sediment from the bottom of the cyclone well, easily colliding with the sides of the flow stabilizer plate. Prolonged collisions can damage the sides of the flow stabilizer plate, leading to safety issues and affecting the safety of the inner cylinder. Secondly, this method reduces the sedimentation space at the bottom of the cyclone well, and large amounts of sediment tend to accumulate on both sides of the flow stabilizer plate, making it difficult to grab. This accumulation over time negatively impacts the sedimentation efficiency of the cyclone well.

[0004] Furthermore, for areas with high groundwater levels, the design of vortex wells must also consider anti-buoyancy stabilization measures. To resist the buoyancy of groundwater, the common design approach is to thicken the bottom slab or sidewalls, thereby increasing the weight of the vortex well itself to counteract buoyancy. This approach is time-consuming, labor-intensive, and increases project investment.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a vortex well inner cylinder support and anti-buoyancy structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A vortex well inner cylinder support and anti-buoyancy structure includes a vortex well inner cylinder, a vortex well outer cylinder, and a water intake well. A flow stabilizing plate is provided at the bottom of the vortex well inner cylinder. The outer side of the flow stabilizing plate is connected to the inner wall of the vortex well outer cylinder. The bottom of the flow stabilizing plate is provided on the foundation plate of the vortex well outer cylinder. The inner side of the flow stabilizing plate has a variable cross-section structure.

[0009] Preferably, one end of the flow stabilizer is provided with a straight section, a first ramp section and a second ramp section in sequence.

[0010] Preferably, an inner inclined column is connected to the inner side of the flow stabilizer plate, the upper part of the inner inclined column is connected to the bottom of the outer cylinder of the vortex well, and the bottom of the inner inclined column is set on the foundation plate of the outer cylinder of the vortex well.

[0011] Preferably, a ring beam is provided at the top of the inner ring inclined column, and the ring beam connects the tops of all the inner ring inclined columns.

[0012] Preferably, a ring plate is provided on the outer wall of the outer cylinder of the vortex well, and an outer ring of inclined columns are evenly arranged on the ring plate.

[0013] Preferably, the ring plate is a reinforced concrete structure, with one end of the ring plate fixedly connected to the outer wall of the vortex well outer cylinder, and the other end hinged to the outer ring inclined column.

[0014] Preferably, an inclined wall is provided between the outer inclined column and the outer wall of the vortex well outer cylinder.

[0015] Preferably, the outer ring inclined columns are evenly arranged at 30-degree intervals around the axis of the outer cylinder of the vortex well.

[0016] Compared with the prior art, the vortex well inner cylinder support and anti-buoyancy structure provided by the present invention has the following beneficial effects:

[0017] 1. The present invention provides a vortex well inner cylinder support and anti-buoyancy structure, which makes the flow stabilizing plate variable cross-section to make room at the bottom, so as to facilitate the grab bucket to grab slag, and at the same time reduce the collision between the grab bucket and the flow stabilizing plate.

[0018] 2. The present invention provides a vortex well inner cylinder support and anti-buoyancy structure. When the diameter and depth of the vortex well are less than 20m and the distance between the inner cylinder and the bottom plate is relatively close, the flow stabilizing plate can be designed as an inclined column supporting the upper inner cylinder. A ring beam is set at the top of the inclined column to connect the inclined columns into a whole, ensuring the overall stability of the inclined columns.

[0019] 3. The present invention provides a vortex well inner cylinder support and anti-buoyancy structure. By adding counterweights within the depth range of the vortex well, buoyancy can be resisted. A ring plate is set on the outer cylinder wall of the vortex well, and inclined columns and inclined walls are set on the ring plate. The three form a whole and jointly bear the weight of the upper backfill material.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the arrangement of flow stabilizers in the prior art.

[0023] Figure 2 for Figure 1 AA section view.

[0024] Figure 3 This is a schematic diagram of a vortex well inner cylinder support and anti-buoyancy structure provided in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the variable cross-section of the flow stabilizing plate in the inner cylinder support and anti-buoyancy structure of a vortex well, provided in an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the flow stabilizing plate connected to the inclined column in the inner cylinder support and anti-buoyancy structure of a vortex well, provided in an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the planar arrangement of the flow stabilizing plate in the inner cylinder support and anti-buoyancy structure of a vortex well, provided as an embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the planar arrangement of a ring plate on the outer wall of the outer cylinder of a vortex well, which is provided in an embodiment of the present invention as a support and anti-buoyancy structure for the inner cylinder of a vortex well.

[0029] Figure 8 This is a schematic diagram of the inner ring plate, outer inclined column, and inclined wall in a vortex well inner cylinder support and anti-buoyancy structure provided in an embodiment of the present invention.

[0030] The diagram is shown below:

[0031] 1. Inner cylinder of the vortex well; 2. Outer cylinder of the vortex well; 3. Suction well; 4. Flow stabilizing plate; 5. Straight section; 6. First slope section; 7. Second slope section; 8. Inner ring inclined column; 9. Ring beam; 10. Ring plate; 11. Outer ring inclined column; 12. Inclined wall. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] like Figure 1-2 As shown, for vortex wells with an inner cylinder, due to process requirements, the inner cylinder wall generally does not need to extend to the bottom plate. In order to support the inner cylinder wall, a varying number of flow stabilizing plates 4 need to be installed on the bottom plate to support the inner cylinder. The number of flow stabilizing plates 4 is determined according to the diameter of the outer cylinder 2 of the vortex well. When the diameter is less than or equal to 20m, 8 plates are installed; when the diameter is greater than 20m and less than or equal to 30m, 10 plates are installed.

[0034] During use, it was found that the grab bucket's swaying motion, when grabbing sediment from the bottom of the cyclone well, causes it to shake left and right, easily colliding with the sides of the flow stabilizer plate 4. Prolonged collisions can damage the sides of the flow stabilizer plate 4, leading to safety issues and affecting the safety of the inner cylinder. Secondly, this design of the flow stabilizer plate 4 reduces the sediment space at the bottom plate, and a large amount of sediment easily accumulates on both sides of the flow stabilizer plate 4, making it difficult to grab. Prolonged accumulation will affect the sedimentation effect of the cyclone well.

[0035] like Figure 3-8 As shown, to solve the above-mentioned technical problems, this embodiment of the invention provides a support and anti-buoyancy structure for the inner cylinder 1 of a vortex well, including an inner cylinder 1, an outer cylinder 2, and a suction well 3. A flow stabilizing plate 4 is provided at the bottom of the inner cylinder 1. The outer side of the flow stabilizing plate 4 is connected to the inner wall of the outer cylinder 2. The bottom of the flow stabilizing plate 4 is provided on the foundation plate of the outer cylinder 2. The inner side of the flow stabilizing plate 4 has a variable cross-section structure.

[0036] Specifically, the structure of the flow stabilizer 4 includes the following two types:

[0037] In the first scenario, when the diameter and depth of the vortex well are greater than 20m, one end of the flow stabilizing plate 4 is sequentially provided with a straight section 5, a first inclined section 6, and a second inclined section 7. Generally, the slope of the second inclined section 7 is greater than the slope of the first inclined section 6. The lengths of the straight section 5, the first inclined section 6, and the second inclined section 7 are determined according to the specific process and the size of the grab bucket.

[0038] In the second scenario, when the diameter and depth of the vortex well are less than 20m, the distance between the inner cylinder 1 and the bottom plate of the vortex well is relatively short. The inner side of the flow stabilizing plate 4 is also connected to an inner ring of inclined columns 8. The top of the inner ring of inclined columns 8 is connected to the bottom of the outer cylinder 2 of the vortex well, and the bottom of the inner ring of inclined columns 8 is set on the foundation plate of the outer cylinder 2. A ring beam 9 is provided at the top of the inner ring of inclined columns 8, and the ring beam 9 connects the tops of all the inner ring of inclined columns 8. This invention ensures the overall stability of the inclined columns by connecting them into a whole. When using inclined column support, the amount of concrete can be reduced by approximately 360m³ compared to the flow stabilizing plate 4, the amount of concrete formwork can be reduced by 1500m², and the construction period can be reduced by approximately one week. Its economic benefits are significant.

[0039] This invention provides a support and anti-buoyancy structure for the inner cylinder 1 of a vortex well. For areas with high groundwater levels, the design of vortex wells also needs to consider anti-buoyancy stability measures. To resist the buoyancy of groundwater, the common design approach is to thicken the bottom plate or sidewalls, thereby increasing the weight of the vortex well itself to resist buoyancy. This approach is time-consuming, labor-intensive, and increases engineering investment.

[0040] Based on the concept of anti-buoyancy, adding counterweights within the depth range of the vortex well can resist buoyancy. Therefore, a ring plate 10 is installed at a certain position on the outer wall of the vortex well. The ring plate 10 is backfilled with high-density, low-porosity filler, such as cement-mixed soil, or, to speed up construction, C15 plain concrete. Inclined columns and inclined walls 12 are installed on the ring plate 10, forming a whole to jointly bear the weight of the upper backfill material.

[0041] Specifically, a ring plate 10 is provided on the outer wall of the outer cylinder 2 of the vortex well, and outer inclined columns 11 are evenly arranged on the ring plate 10. The ring plate 10 is a reinforced concrete structure, one end of which is fixed to the outer wall of the outer cylinder 2 of the vortex well, and the other end is hinged to the outer inclined column 11. An inclined wall 12 is provided between the outer inclined column 11 and the outer wall of the outer cylinder 2 of the vortex well. The outer inclined columns 11 are evenly arranged at 30-degree intervals around the axis of the outer cylinder 2 of the vortex well.

[0042] Compared with the prior art, the present invention provides a support and anti-buoyancy structure for the inner cylinder 1 of a vortex well. The flow stabilizing plate 4 is treated with a variable cross-section to allow for bottom space, which facilitates the grab bucket's slag removal and reduces the collision between the grab bucket and the flow stabilizing plate 4. At the same time, a ring plate 10 is set on the outer cylinder 2 wall of the vortex well, and inclined columns and inclined walls 12 are set on the ring plate 10. The three form a whole, and the buoyancy is resisted by adding counterweights within the depth range of the vortex well.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A vortex well inner cylinder support and anti-buoyancy structure, characterized in that, It includes an inner cylinder of a vortex well, an outer cylinder of a vortex well, and a suction well. A flow stabilizing plate is provided at the bottom of the inner cylinder of the vortex well. The outer side of the flow stabilizing plate is connected to the inner wall of the outer cylinder of the vortex well. The bottom of the flow stabilizing plate is provided on the foundation plate of the outer cylinder of the vortex well. The inner side of the flow stabilizing plate has a variable cross-section structure.

2. The vortex well inner cylinder support and anti-buoyancy structure according to claim 1, characterized in that, One end of the flow stabilizer is provided with a straight section, a first ramp section and a second ramp section in sequence.

3. The vortex well inner cylinder support and anti-buoyancy structure according to claim 1, characterized in that, The inner side of the flow stabilizer plate is also connected to an inner ring inclined column. The top of the inner ring inclined column is connected to the bottom of the outer cylinder of the vortex well. The bottom of the inner ring inclined column is set on the foundation plate of the outer cylinder of the vortex well.

4. The vortex well inner cylinder support and anti-buoyancy structure according to claim 1, characterized in that, A ring beam is provided at the top of the inner ring inclined column, and the ring beam connects the tops of all the inner ring inclined columns.

5. A vortex well inner cylinder support and anti-buoyancy structure according to claim 2 or 4, characterized in that, A ring plate is provided on the outer wall of the outer cylinder of the vortex well, and an outer ring of inclined columns are evenly arranged on the ring plate.

6. The vortex well inner cylinder support and anti-buoyancy structure according to claim 5, characterized in that, The ring plate is a reinforced concrete structure. One end of the ring plate is fixed to the outer wall of the outer cylinder of the vortex well, and the other end is hinged to the outer ring inclined column.

7. The vortex well inner cylinder support and anti-buoyancy structure according to claim 6, characterized in that, An inclined wall is provided between the outer ring inclined column and the outer wall of the vortex well outer cylinder.

8. The vortex well inner cylinder support and anti-buoyancy structure according to claim 7, characterized in that, The outer ring inclined columns are evenly arranged at 30-degree intervals around the axis of the outer cylinder of the vortex well.

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