CN109356120B - Hemispherical dirt blocking structure of sewer pipeline - Google Patents
Hemispherical dirt blocking structure of sewer pipeline Download PDFInfo
- Publication number
- CN109356120B CN109356120B CN201811505205.XA CN201811505205A CN109356120B CN 109356120 B CN109356120 B CN 109356120B CN 201811505205 A CN201811505205 A CN 201811505205A CN 109356120 B CN109356120 B CN 109356120B
- Authority
- CN
- China
- Prior art keywords
- pipe
- supporting seat
- dirt blocking
- blocking cover
- hemispherical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 56
- 239000010865 sewage Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000003466 welding Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 3
- 239000010813 municipal solid waste Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
- Barrages (AREA)
Abstract
The invention discloses a hemispherical sewage blocking structure of a sewage pipeline, which comprises the sewage pipeline; the front end of the inlet of the sewer pipeline is embedded with a ring-shaped steel plate, the front end surface of the ring-shaped steel plate is welded with the supporting seat pipe, and the front end surface of the supporting seat pipe is connected with the hemispherical dirt blocking cover through a flange. The dirt blocking cover is uniform in overall stress, simple to manufacture, free of stress concentration caused by welding, less in material consumption, and less in dirt adhesion to the dirt blocking cover, and is beneficial to dirt blocking; the water flow can collide mutually when entering the drain pipe through the round hole, thereby being beneficial to reducing the flow speed of the drain pipe, reducing the vibration of the dirt blocking cover during the overflow and improving the running water head of the drain valve. The supporting seat pipe is arranged at the rear part of the dirt blocking cover, so that the dirt blocking cover is convenient to detach and assemble, and the dirt blocking cover is convenient to overhaul and maintain; the supporting seat pipe is internally provided with the equal-diameter pipe welded with the reinforcing ribs uniformly distributed along the circumference, so that the damping energy dissipation is locally increased, the flow speed of a drainage pipeline is effectively reduced again, and the running water head of the drainage valve is effectively improved again.
Description
Technical Field
The invention relates to a hemispherical dirt blocking structure of a sewer pipeline, and belongs to the technical field of metal structures of hydraulic and hydroelectric engineering.
Background
Based on environmental protection needs, the water conservancy and hydropower engineering is generally provided with a drain pipe at the bottom for discharging ecological flow, and the drain pipe is generally operated by adopting a drain valve because of a small orifice size and a high operation water head. Considering that the bottom suspended load or the bed load of the sewer pipeline enters the runner to possibly damage the valve body, a fixed trash rack is generally arranged at the inlet of the sewer pipeline. The traditional fixed trash rack adopts a welding structure, and because the grid plates are fixed only by welding seams at the contact parts of the grid plates and the trash rack frame, the trash rack is used in a sewer pipeline with overhigh flow rate, and the grid plates are easy to break, so that larger dirt enters the sewer pipeline to cause damage to a valve body, and the trash rack is only suitable for low flow rate occasions, so the prior art is still imperfect and needs to be further improved.
Disclosure of Invention
The invention aims to provide a hemispherical sewage blocking structure of a sewer pipe, which is used for preventing grid plates from being broken due to high flow speed in the sewer pipe, so that larger sewage enters the sewer pipe and a valve body is damaged, thereby overcoming the defects in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a hemispherical sewage blocking structure of a sewage pipeline, which comprises the sewage pipeline; the front end of the inlet of the sewer pipeline is embedded with a ring-shaped steel plate, the front end surface of the ring-shaped steel plate is welded with the supporting seat pipe, and the front end surface of the supporting seat pipe is connected with the hemispherical dirt blocking cover through a flange.
In the structure, the hemispherical dirt blocking cover comprises a hemispherical shell, a group of round holes are uniformly distributed on the hemispherical shell, and a flange is welded at the opening of the hemispherical shell.
In the above structure, the center lines of all the round holes meet at the center of the hemispherical shell.
In the structure, one end of the supporting seat pipe is a small-caliber section, the other end of the supporting seat pipe is a large-caliber section, and the small-caliber section and the large-caliber section are connected through an arc transition pipe; reinforcing ribs which are uniformly distributed along the circumference are arranged on the inner side and the outer side of the supporting seat pipe, and the inner side of the supporting seat pipe is welded with the constant diameter pipe; the small-caliber section of the supporting seat pipe is welded with the inner annular surface of the annular seat plate; the large-caliber section of the supporting seat pipe is welded with the inner ring surface of the flange.
In the structure, the inner diameter of the small-caliber section is the same as the caliber of the inlet of the sewer pipeline.
In the structure, the drainage pipeline behind the annular steel plate adopts a reducing pipe with a large front end and a small rear end.
Due to the adoption of the technical scheme, compared with the prior art, the dirt blocking cover is a hemispherical shell with circular holes uniformly arranged, the overall stress of the shell is uniform, the manufacture is simple, the stress concentration caused by welding is avoided, the material is saved, dirt is not easy to adhere to the dirt blocking cover, and the dirt blocking cover is beneficial to dirt blocking; in addition, when water flows enter the drain pipeline through the round holes, the water flows collide with each other to dissipate energy, so that the flow speed of the drain pipeline is reduced, the vibration of the dirt blocking cover during overflow is reduced, and the running water head of the drain valve is effectively improved. The back part of the dirt blocking cover is provided with the supporting seat pipe, the dirt blocking cover and the supporting seat pipe are connected by adopting a flange, so that the disassembly and the assembly are convenient, and the overhaul and the maintenance of the dirt blocking cover are also convenient; the supporting seat pipe is internally provided with the equal-diameter pipe welded with the reinforcing ribs uniformly distributed along the circumference, so that the damping energy dissipation is locally increased, the flow speed of a drainage pipeline is effectively reduced again, and the running water head of the drainage valve is effectively improved again. The annular steel plate is connected with the equal-diameter pipe by adopting a reducing pipe with a large front end and a small rear end, the flow speed of the dirt blocking cover can be reduced by locally increasing the overflow surface of the dirt blocking pipe, the vibration of the dirt blocking cover can be reduced, and the dirt blocking of the dirt blocking pipe with a high flow speed can be facilitated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a cross-sectional view of a bearing tube of the present invention.
The marks in the drawings are: 1-a drain pipeline, 2-an inlet, 3-an annular steel plate, 4-a supporting seat pipe, 5-a hemispherical dirt blocking cover, 6-a flange, 7-a round hole, 8-a hemispherical shell, 9-an equal diameter pipe, 10-a reinforcing rib, 11-an annular seat plate, 12-a large caliber section, 13-an arc transition pipe, 14-a small caliber section and 15-a reducing pipe.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The hemispherical sewage blocking structure of the sewer pipe, as shown in figure 1, comprises a sewer pipe 1; the front end of an inlet 2 of the sewer pipeline 1 is pre-embedded with a ring-shaped steel plate 3, the front end surface of the ring-shaped steel plate 3 is welded with a supporting seat pipe 4, and the front end surface of the supporting seat pipe 4 is connected with a hemispherical sewage blocking cover 5 through a flange 6. The hemispherical dirt blocking cover 5 comprises a hemispherical shell 8, a group of round holes 7 are uniformly distributed on the hemispherical shell 8, and a flange 6 is welded at the opening of the hemispherical shell 8. The center lines of all the round holes 7 meet at the center of the hemispherical shell 8. As shown in fig. 2, one end of the supporting seat pipe 4 is a small-caliber section 14, the other end is a large-caliber section 12, and the small-caliber section 14 and the large-caliber section 12 are connected through an arc transition pipe 13; reinforcing ribs 10 uniformly distributed along the circumference are arranged on the inner side and the outer side of the supporting seat pipe 4, and the inner side reinforcing ribs 10 are welded with the equal-diameter pipe 9; the small-caliber section 14 of the supporting seat pipe 4 is welded with the inner ring surface of the annular seat plate 11; the large-caliber section 12 of the supporting seat pipe 4 is welded with the inner annular surface of the flange 6. The inner diameter of the small-caliber section 14 is the same as the caliber of the sewer pipeline inlet 2. The sewer pipe 1 behind the annular steel plate 3 adopts a reducing pipe 15 with a large front end and a small rear end.
Examples
In the hemispherical sewage blocking structure of the sewage pipeline, as shown in fig. 1, a ring-shaped steel plate 3 is pre-buried at the front end of an inlet 2 of the sewage pipeline 1, a supporting seat pipe 4 is arranged on the ring-shaped steel plate 3, a hemispherical sewage blocking cover 5 is arranged on the supporting seat pipe 4, and the hemispherical sewage blocking cover 5 is connected with the supporting seat pipe 4 through a flange 6. The hemispherical dirt blocking cover 5 is a hemispherical shell 8 with circular holes 7 uniformly arranged in an annular shape; the supporting seat pipe 4 is formed by welding a constant diameter pipe 9, reinforcing ribs 10 which are annularly and uniformly distributed and an annular seat plate 11; the sewer pipe 1 behind the annular steel plate 3 adopts a reducing pipe 15 with a large front end and a small rear end. As shown in fig. 2, the supporting seat tube 4 consists of a large-caliber section 12, an arc transition tube 13 and a small-caliber section 14; the small-bore pipe section 14 has the same inner diameter as the inlet 2 of the sewer pipe 1.
The dirt blocking cover is a hemispherical shell with circular holes uniformly arranged in an annular manner, the overall stress of the shell is uniform, the manufacture is simple, the stress concentration caused by welding is avoided, the material is saved, dirt is not easy to adhere to the dirt blocking cover, and the dirt blocking cover is beneficial to dirt blocking; in addition, when water flows enter the drain pipe through the round holes, the water flows collide with each other to dissipate energy, so that the flow speed of the drain pipe is reduced, the vibration of the dirt blocking cover during overcurrent is reduced, and the running water head of the drain valve is improved. The back part of the dirt blocking cover is provided with the supporting seat pipe, the dirt blocking cover and the supporting seat pipe are connected by adopting a flange, so that the disassembly and the assembly are convenient, and the overhaul and the maintenance of the dirt blocking cover are also convenient; the supporting seat pipe is internally provided with the equal-diameter pipe welded with the reinforcing ribs uniformly distributed along the circumference, so that the damping energy dissipation is locally increased, the flow speed of a drainage pipeline is effectively reduced again, and the running water head of the drainage valve is effectively improved again. The annular steel plate is connected with the equal-diameter pipe by adopting a reducing pipe with a large front end and a small rear end, the flow speed of the dirt blocking cover can be reduced by locally increasing the overflow surface of the dirt blocking pipe, the vibration of the dirt blocking cover can be reduced, and the dirt blocking of the dirt blocking pipe with a high flow speed can be facilitated.
Claims (4)
1. A hemispherical sewage blocking structure of a sewage pipeline, which comprises a sewage pipeline (1); the method is characterized in that: the front end of an inlet (2) of the sewer pipeline (1) is pre-embedded with a ring-shaped steel plate (3), the front end surface of the ring-shaped steel plate (3) is welded with a supporting seat pipe (4), and the front end surface of the supporting seat pipe (4) is connected with a hemispherical dirt blocking cover (5) through a flange (6); the hemispherical dirt blocking cover (5) comprises a hemispherical shell (8), a group of round holes (7) are uniformly distributed on the hemispherical shell (8), and a flange (6) is welded at the opening of the hemispherical shell (8); one end of the supporting seat pipe (4) is a small-caliber section (14), the other end of the supporting seat pipe is a large-caliber section (12), and the small-caliber section (14) is connected with the large-caliber section (12) through an arc transition pipe (13); reinforcing ribs (10) uniformly distributed along the circumference are arranged on the inner side and the outer side of the supporting seat pipe (4), and the inner side reinforcing ribs (10) are welded with the equal-diameter pipe (9); the small-caliber section (14) of the supporting seat pipe (4) is welded with the inner annular surface of the annular seat plate (11); the large-caliber section (12) of the supporting seat pipe (4) is welded with the inner annular surface of the flange (6).
2. The sewer pipe hemispheric dirt blocking structure according to claim 1, wherein: the central lines of all the round holes (7) are intersected at the sphere center of the hemispherical shell (8).
3. The sewer pipe hemispheric dirt blocking structure according to claim 1, wherein: the inner diameter of the small-caliber section (14) is the same as the caliber of the inlet (2) of the sewer pipeline (1).
4. The sewer pipe hemispheric dirt blocking structure according to claim 1, wherein: the drainage pipeline (1) behind the annular steel plate (3) adopts a reducing pipe (15) with a large front end and a small rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505205.XA CN109356120B (en) | 2018-12-10 | 2018-12-10 | Hemispherical dirt blocking structure of sewer pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505205.XA CN109356120B (en) | 2018-12-10 | 2018-12-10 | Hemispherical dirt blocking structure of sewer pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356120A CN109356120A (en) | 2019-02-19 |
| CN109356120B true CN109356120B (en) | 2024-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811505205.XA Active CN109356120B (en) | 2018-12-10 | 2018-12-10 | Hemispherical dirt blocking structure of sewer pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356120B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374067A (en) * | 2019-07-15 | 2019-10-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Trash device for water filling level pressure valve of extra-high water head gate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200244694Y1 (en) * | 2001-05-24 | 2001-10-29 | 김종선 | Drainage Reverse Flow Preventing and Bad Smell Blocking Device |
| CN107794885A (en) * | 2017-11-03 | 2018-03-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake conical trash rack |
| CN108104073A (en) * | 2018-01-22 | 2018-06-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological flow hole import hemisphere type integral casting formula trash rack |
| CN207452847U (en) * | 2017-11-03 | 2018-06-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake trash device |
| CN209307977U (en) * | 2018-12-10 | 2019-08-27 | 中国电建集团贵阳勘测设计研究院有限公司 | Semi-spherical trash blocking structure of water drain pipeline |
-
2018
- 2018-12-10 CN CN201811505205.XA patent/CN109356120B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200244694Y1 (en) * | 2001-05-24 | 2001-10-29 | 김종선 | Drainage Reverse Flow Preventing and Bad Smell Blocking Device |
| CN107794885A (en) * | 2017-11-03 | 2018-03-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake conical trash rack |
| CN207452847U (en) * | 2017-11-03 | 2018-06-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake trash device |
| CN108104073A (en) * | 2018-01-22 | 2018-06-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological flow hole import hemisphere type integral casting formula trash rack |
| CN209307977U (en) * | 2018-12-10 | 2019-08-27 | 中国电建集团贵阳勘测设计研究院有限公司 | Semi-spherical trash blocking structure of water drain pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109356120A (en) | 2019-02-19 |
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