CN112717493B - Pipe network runoff purification device based on rotational flow sand setting principle - Google Patents
Pipe network runoff purification device based on rotational flow sand setting principle Download PDFInfo
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- CN112717493B CN112717493B CN202011471015.8A CN202011471015A CN112717493B CN 112717493 B CN112717493 B CN 112717493B CN 202011471015 A CN202011471015 A CN 202011471015A CN 112717493 B CN112717493 B CN 112717493B
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- tank body
- energy dissipation
- grating
- grid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone
Abstract
The invention relates to a pipe network runoff purification device based on a rotational flow sand setting principle, and belongs to the technical field of sewage treatment. The device comprises a tank body, a water inlet pipe, a water outlet pipe, a guide plate, a support body, an energy dissipation grid and a sand collecting hopper, wherein the water inlet pipe is connected into the cylindrical tank body at a lower position along the tangential direction of the tank body, the water outlet pipe is connected out of the tank body at a higher position along the tangential direction of the tank body, and the outer edges of the water inlet pipe and the water outlet pipe are respectively tangent with the tank body; the axes of the water inlet pipe and the water outlet pipe are positioned on the same vertical plane; the upper edge of the opening of the water inlet pipe in the tank body is lower than the lower edge of the opening of the water outlet pipe, and a half-moon-shaped guide plate is arranged between the upper edge and the lower edge in the horizontal direction; the bottom of the tank body is provided with a support body, an energy dissipation grid is supported on the support body, and a sand collecting hopper is formed in the tank body space below the energy dissipation grid; the energy dissipation grating is a split type grating, and a complete circular grating is formed by a plurality of fan-shaped gratings. The invention effectively solves the defects of the existing rotational flow sand setting device of the drainage pipeline.
Description
Technical Field
The invention relates to a sand setting device for removing silt in a drainage pipeline, in particular to a pipe network runoff purification device based on a rotational flow sand setting principle, and belongs to the technical field of rain/sewage treatment.
Background
Solid particles such as mud and sand in a rainwater pipeline are discharged into a water body along with rainwater runoff, the received water body is polluted, and the water discharge capacity of the system is seriously influenced by the deposition of the particles in the pipeline, so that the solid particles are an important factor for causing urban waterlogging. The cyclone sand setting technology is successfully applied in the field of sewage treatment, but most of the sand setting tanks are used at the front end of a sewage treatment plant and are characterized by large flow, need of power stirring and relatively complex tank types. In order to avoid pipeline deposition, rainwater pipelines or rain and sewage converging pipelines need to be dispersedly provided with a large number of grit chambers on the drainage branch pipes. Therefore, simple structure, low in cost is the basic technical requirement to rainwater pipeline grit chamber, still requires difficult jam simultaneously, does not influence the drainage waterlogging and manages conveniently.
The rainwater rotational flow sand setting technology has gained attention at present, and a plurality of patents and technologies are disclosed in succession, for example: chinese patent publication CN211849910U, a primary rain cyclone separation well, which designs a deeper tank body and a more complex internal structure; CN211421236, "a hydrocyclone well", which designs a grating to block dirt, but its presence is likely to cause blockage and affect drainage; chinese patent publication CN210934009U "a cyclone rainwater filter" has a supporting member and a filtering screen inside, which is easily blocked by leaves or weeds, and is not convenient for operation and management. The Chinese patent publication CN105587032A 'cyclone sand basin for rainwater pipeline' better solves the contradiction between sedimentation and overflow capacity, but a guide cylinder is designed in the sand basin, a guide cylinder supporting piece is easy to be wound by weed leaves to cause blockage, and in addition, the guide cylinder influences the bottom sediment cleaning work; the Chinese patent publication CN203916177U 'rainwater pipeline rotational flow grit chamber' designs a conical tank bottom and a sand pump, improves the construction and equipment cost, and is difficult to be widely applied. .
Disclosure of Invention
Aiming at the defects in the prior art, the invention designs the pipe network runoff purification device based on the rotational flow sand setting principle, and effectively solves the problem of the deficiency of the conventional rotational flow sand setting device of the drainage pipeline.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a pipe network runoff purification device based on a rotational flow sand setting principle comprises a tank body, a water inlet pipe, a water outlet pipe, a guide plate, a support body, an energy dissipation grid and a sand collecting hopper, wherein the water inlet pipe is connected into the cylindrical tank body at a lower position along the tangential direction of the tank body, the water outlet pipe is connected out of the tank body at a higher position along the tangential direction of the tank body, and the outer edges of the water inlet pipe and the water outlet pipe are respectively tangent with the tank body; the axes of the water inlet pipe and the water outlet pipe are positioned on the same vertical plane; the upper edge of the opening of the water inlet pipe in the tank body is lower than the lower edge of the opening of the water outlet pipe, and a half-moon-shaped guide plate is arranged between the upper edge of the opening of the water inlet pipe and the lower edge of the opening of the water outlet pipe in the tank body in the horizontal direction; the bottom of the tank body is provided with a support body, an energy dissipation grid is supported on the support body, and a sand collecting hopper is formed in the tank body space below the energy dissipation grid; the energy dissipation grating is a split type grating, and a complete circular grating is formed by a plurality of fan-shaped gratings, so that the energy dissipation grating is conveniently decomposed and assembled in the pool body; the upper edge of the energy dissipation grid is arranged below the lower edge of the water inlet pipe, and the lower edge of the energy dissipation grid is arranged on the support body; the cross section of the grid bars of the energy dissipation grid is arranged with the upper end inclined at a certain angle to the rotational flow direction when the circular grid is seen from the inside to the outside of the circle, so as to prevent water flow from directly rushing into the energy dissipation grid to disturb the silt settled in the sand collecting hopper.
Furthermore, the fan-shaped grating is composed of arc gratings and grating strips, and radial inclined grating strips are arranged between the inner layer arc grating and the outer layer arc grating.
Furthermore, the inclination angle of the grid bars to the rotational flow direction is 10-40 degrees.
Furthermore, the inclination angle of the grid to the rotational flow direction is 30 degrees.
Furthermore, the grid bars are rectangular grid bars, and the material of the grid bars is carbon steel, stainless steel, plastic or cast iron.
Furthermore, the inner wall of the pool body where the sand collecting hopper is located is thickened to form a step, and the periphery of the energy dissipation grating is located on the step.
Further, the support body is bolted or clamped with the energy dissipation grid.
Furthermore, the energy dissipation grating is formed by assembling 4-20 fan-shaped gratings, is linked together in a clamping and bolting mode, and can be conveniently disassembled and assembled when being installed, debugged and cleaned in the sand collecting hopper.
Compared with the prior art, the invention has the following technical effects:
the invention effectively solves the problem of the deficiency of the existing rotational flow sand setting device of the drainage pipeline, and has the advantages of simple structure, low manufacturing cost, difficult blockage, no influence on drainage and convenient management.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a pipe network runoff purification device based on a rotational flow sand setting principle;
FIG. 2 is a side view of a pipe network runoff purification device based on a rotational flow sand setting principle;
FIG. 3 is a top view of the pipe network runoff purification device based on the rotational flow sand setting principle;
figure 4 is a top view of the energy dissipating grid of the present invention;
figure 5 is a cross-sectional view of the energy dissipating grid of the present invention.
In the figure, 1-a tank body, 2-a water inlet pipe, 3-a water outlet pipe, 4-a guide plate, 5-a support body, 6-an energy dissipation grid, 7-a sand collecting hopper, 61-grid bars and 62-an arc grid.
Detailed Description
The present invention will be described in detail with reference to the accompanying fig. 1 to 5.
As shown in fig. 1-5, the pipe network runoff purification apparatus based on the rotational flow sand setting principle of the embodiment includes a tank body 1, a water inlet pipe 2, a water outlet pipe 3, a flow guide plate 4, a support body 5, an energy dissipation grid 6 and a sand collection hopper 7, as shown in fig. 1. The water inlet pipe 2 is connected into the cylindrical tank body 1 at the lower position along the tangential direction of the tank body 1, the water outlet pipe 3 is connected out of the tank body 1 at the upper position along the tangential direction of the tank body 1, and the outer edges of the water inlet pipe 2 and the water outlet pipe 3 are respectively tangent with the tank body 1. As shown in fig. 2-3, the axes of the inlet pipe 2 and the outlet pipe 3 are located on the same vertical plane. The upper edge of the opening of the water inlet pipe 2 in the tank body 1 is lower than the lower edge of the opening of the water outlet pipe 3, and a half-moon-shaped guide plate 4 is arranged between the upper edge and the lower edge in the horizontal direction. The bottom of the tank body 1 is provided with a supporting body 5, an energy dissipation grid 6 is supported on the supporting body 5, and a sand collecting hopper 7 is formed in the tank body space below the energy dissipation grid 6. As shown in fig. 3-5, the energy dissipation grating 6 is a split type grating, which is a complete circular grating formed by clamping 20 fan-shaped gratings, so that the energy dissipation grating is conveniently decomposed and assembled in the tank body 1, and is composed of an arc grating 62 and grating strips 61, and radial inclined grating strips 61 are arranged between the inner and outer layer arc gratings 62. The upper edge of the energy dissipation grid 6 is arranged below the lower edge of the water inlet pipe 2, and the lower edge of the energy dissipation grid 6 is arranged on the support body 5. Wherein, looking from the circle inside to the circle outside of the circular grid, the cross section of the grid 61 of the energy dissipation grid 6 is arranged with the upper end inclined to the rotational flow direction by a certain angle, so as to avoid the water flow from directly rushing into the energy dissipation grid 6 to disturb the silt settled in the sand collecting hopper 7. In this embodiment, the grid 61 is a rectangular plastic grid, which is inclined at an angle of 30 degrees in the swirling direction, and is injection molded together with the circular arc grid 62.
In addition, the inner wall of the tank body 1 where the sand collecting hopper 7 is arranged is thickened to form a step, and the periphery of the energy dissipation grating 6 is located on the step to play a role in supporting the periphery.
When the device is used, water flow enters the tank body 1 from the water inlet pipe 2 along the tangential direction, and forms rotary flow in the tank, meanwhile, part of kinetic energy is consumed, the flow velocity is reduced, heavy particles in water are precipitated under the action of gravity, and pass through the energy dissipation grating 6 to enter the sand collection hopper 7. The water in the upper space of the tank body 1 flows out through the water outlet pipe 3.
The above-mentioned embodiments are only given for the purpose of more clearly illustrating the technical solutions of the present invention, and are not meant to be limiting, and variations of the technical solutions of the present invention by those skilled in the art based on the common general knowledge in the art are also within the scope of the present invention.
Claims (3)
1. The utility model provides a pipe network runoff purifier based on whirl sand setting principle, includes cell body (1), inlet tube (2), outlet pipe (3), guide plate (4), supporter (5), energy dissipation grid (6) and sand collecting hopper (7), its characterized in that: the water inlet pipe (2) is connected into the cylindrical tank body (1) at a lower position along the tangential direction of the tank body (1), the water outlet pipe (3) is connected out of the tank body (1) at a higher position along the tangential direction of the tank body (1), and the outer edges of the water inlet pipe (2) and the water outlet pipe (3) are respectively tangent to the tank body (1); the axes of the water inlet pipe (2) and the water outlet pipe (3) are positioned on the same vertical plane; the upper edge of an opening of the water inlet pipe (2) in the tank body (1) is lower than the lower edge of an opening of the water outlet pipe (3), and a half-moon-shaped guide plate (4) is arranged between the upper edge and the lower edge in the horizontal direction; a support body (5) is arranged at the bottom of the tank body (1), an energy dissipation grid (6) is supported on the support body (5), and a sand collecting hopper (7) is formed in a tank body space below the energy dissipation grid (6); the energy dissipation grating (6) is a split type grating, and a complete circular grating is formed by a plurality of fan-shaped gratings, so that the energy dissipation grating is conveniently decomposed and assembled in the pool body (1); the upper edge of the energy dissipation grid (6) is arranged below the lower edge of the water inlet pipe (2), and the lower edge of the energy dissipation grid (6) is arranged above the support body (5); the cross section of the grid bars (61) of the energy dissipation grid (6) is arranged with the upper ends inclined at a certain angle to the rotational flow direction from the inner circle to the outer circle of the circular grid so as to prevent water flow from directly rushing into the energy dissipation grid (6) to disturb the silt settled in the sand collection hopper (7);
the fan-shaped grating is composed of an arc grating (62) and grating strips (61), and radial inclined grating strips (61) are arranged between the inner layer arc grating and the outer layer arc grating (62); the inclination angle of the grid bars (61) to the rotational flow direction is 10-40 degrees; the inner wall of the tank body (1) where the sand collecting hopper (7) is located is thickened to form a step, and the periphery of the energy dissipation grating (6) is located on the step; the energy dissipation grating (6) is formed by splicing 4-20 fan-shaped gratings and is connected together in a clamping and bolting mode.
2. The pipe network runoff purification device based on the rotational flow sand setting principle of claim 1, which is characterized in that: the inclination angle of the grid bars (61) to the rotational flow direction is 30 degrees.
3. The pipe network runoff purification device based on the rotational flow sand setting principle of claim 2, wherein: the grid bars (61) are rectangular grid bars made of carbon steel, stainless steel, plastic or cast iron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011471015.8A CN112717493B (en) | 2020-12-14 | 2020-12-14 | Pipe network runoff purification device based on rotational flow sand setting principle |
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| CN202011471015.8A CN112717493B (en) | 2020-12-14 | 2020-12-14 | Pipe network runoff purification device based on rotational flow sand setting principle |
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| CN112717493A CN112717493A (en) | 2021-04-30 |
| CN112717493B true CN112717493B (en) | 2022-04-15 |
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| CN114076259A (en) * | 2021-11-19 | 2022-02-22 | 湘潭大学 | Material slurry conveying pipeline pressure regulating system |
| CN114797194A (en) * | 2022-04-11 | 2022-07-29 | 贺诚 | Virtual pool bottom, separation method and double-cyclone separator based on virtual pool bottom |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202762149U (en) * | 2012-09-13 | 2013-03-06 | 中冶赛迪工程技术股份有限公司 | Energy-dissipation water inlet rotational flow sedimentation tank |
| CN103537123A (en) * | 2013-09-29 | 2014-01-29 | 中信重工机械股份有限公司 | Flow stabilizing device applied to concentrator |
| CN104056473A (en) * | 2014-06-30 | 2014-09-24 | 安徽理工大学 | Rainwater pipeline rotational flow grit chamber |
| CN104524824A (en) * | 2015-01-20 | 2015-04-22 | 北矿机电科技有限责任公司 | Feeding device of thickener |
| CN105019549A (en) * | 2015-07-03 | 2015-11-04 | 太原理工大学 | Eddy flow-advection detritor for initial rainwater processing |
| CN105587032A (en) * | 2015-12-29 | 2016-05-18 | 北京建筑大学 | Vortex-type grit chamber for rainwater conduit |
| CN108265813A (en) * | 2018-04-09 | 2018-07-10 | 上海市城市建设设计研究总院（集团）有限公司 | The drop energy dissipating drilled shaft of sand setting pretreatment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140091049A1 (en) * | 2012-10-02 | 2014-04-03 | Andritz Inc. | Clarifier with feedwell and methods of clarifying liquids |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202762149U (en) * | 2012-09-13 | 2013-03-06 | 中冶赛迪工程技术股份有限公司 | Energy-dissipation water inlet rotational flow sedimentation tank |
| CN103537123A (en) * | 2013-09-29 | 2014-01-29 | 中信重工机械股份有限公司 | Flow stabilizing device applied to concentrator |
| CN104056473A (en) * | 2014-06-30 | 2014-09-24 | 安徽理工大学 | Rainwater pipeline rotational flow grit chamber |
| CN104524824A (en) * | 2015-01-20 | 2015-04-22 | 北矿机电科技有限责任公司 | Feeding device of thickener |
| CN105019549A (en) * | 2015-07-03 | 2015-11-04 | 太原理工大学 | Eddy flow-advection detritor for initial rainwater processing |
| CN105587032A (en) * | 2015-12-29 | 2016-05-18 | 北京建筑大学 | Vortex-type grit chamber for rainwater conduit |
| CN108265813A (en) * | 2018-04-09 | 2018-07-10 | 上海市城市建设设计研究总院（集团）有限公司 | The drop energy dissipating drilled shaft of sand setting pretreatment |
Non-Patent Citations (1)
| Title |
|---|
| 雨水系统旋流沉砂池的设计及性能研究;崔宇 等;《中国给水排水》;20170301;第33卷(第5期);第124-128页 * |
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