CN110195465B - Converging node structure of municipal drainage pipe network and converging method thereof - Google Patents
Converging node structure of municipal drainage pipe network and converging method thereof Download PDFInfo
- Publication number
- CN110195465B CN110195465B CN201910585067.9A CN201910585067A CN110195465B CN 110195465 B CN110195465 B CN 110195465B CN 201910585067 A CN201910585067 A CN 201910585067A CN 110195465 B CN110195465 B CN 110195465B
- Authority
- CN
- China
- Prior art keywords
- main channel
- ball
- water flow
- channel
- main
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 abstract description 11
- 230000000739 chaotic effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 239000010865 sewage Substances 0.000 description 6
- 230000007774 longterm Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010017472 Fumbling Diseases 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a confluence node structure of a municipal drainage pipe network and a confluence method thereof, comprising a main channel and a branch channel vertically intersected with the main channel, wherein the main channel is provided with a protruding part opposite to the branch channel, and the protruding part and the branch channel are respectively positioned at two sides of the main channel along the axial direction; the guide ball is arranged on the intersection line of the main channel and the protruding part, can rotate around the connecting shaft, and is vertically distributed. The invention aims to provide a converging node structure of a municipal drainage pipe network and a converging method thereof, which are used for solving the problems of chaotic water flow and serious erosion at the junction of a branch canal and a main canal in the municipal drainage pipe network in the prior art, and achieving the purposes of reducing the influence of erosion on the junction and improving the stability and the drainage efficiency of the water flow at the junction.
Description
Technical Field
The invention relates to the field of urban drainage, in particular to a converging node structure of a municipal drainage pipe network and a converging method thereof.
Background
Urban drainage systems are engineering facility systems for treating and removing urban sewage and rainwater, and are an integral part of urban public facilities. Urban drainage system planning is an integral part of urban overall planning. Urban drainage systems are generally composed of drainage pipelines and sewage treatment plants. Under the condition of diversion of sewage and rainwater, the sewage is collected by a drainage pipeline, sent to sewage treatment and then drained into water or recycled; after being collected by the drainage pipeline, the rainwater runoff is closely discharged into the water body. Urban drainage networks are generally classified as either drainage ditches or drainage pipes. In the prior art, a large number of junctions are arranged in a city drainage pipe network, and water flow enters a main channel from a branch channel to be converged. At such junctions, the side walls of the main channel are flushed by the side channels for a long time, and the erosion phenomenon is serious in both the channels and the pipelines. And for urban drainage pipe networks, the intersection with a naturally formed river is generally provided with an inclined angle which can buffer the erosion phenomenon, and in order to facilitate pipeline connection or construction, branch channels are generally arranged perpendicular to a main channel, so that the water flow directions of the intersection are mutually perpendicular, the water flow is mutually impacted and disturbed, the erosion effect of the intersection is further aggravated, the water flow directions of the intersection are extremely disordered, and the water flow of the main channel and the branch channels are mutually influenced, so that the rapid drainage of sewage is not facilitated.
Disclosure of Invention
The invention aims to provide a converging node structure of a municipal drainage pipe network and a converging method thereof, which are used for solving the problems of chaotic water flow and serious erosion at the junction of a branch canal and a main canal in the municipal drainage pipe network in the prior art, and achieving the purposes of reducing the influence of erosion on the junction and improving the stability and the drainage efficiency of the water flow at the junction.
The invention is realized by the following technical scheme:
the confluence node structure of the municipal drainage pipe network comprises a main channel and branch channels vertically intersected with the main channel, wherein the main channel is provided with a protruding part opposite to the branch channels, and the protruding part and the branch channels are respectively positioned at two sides of the main channel along the axial direction; the guide ball is arranged on the intersection line of the main channel and the protruding part, can rotate around the connecting shaft, and is vertically distributed.
Aiming at the problems of chaotic water flow and serious erosion at the junction of a branch canal and a main canal in a municipal drainage pipe network in the prior art, the invention provides a converging node structure of the municipal drainage pipe network, wherein the main canal and the branch canal are vertically intersected, and a convex part opposite to the branch canal is arranged on the main canal, so that the convex part and the branch canal are respectively positioned at two sides of the main canal along the axial direction. The guide ball is arranged at the junction of the main channel and the bulge, so that the spherical center of the guide ball is positioned on the intersection line of the main channel and the bulge, and therefore, half of the guide ball is necessarily positioned in the main channel and the other half is positioned in the bulge. The connecting shaft is vertically distributed and penetrates through the guide ball, the connecting column is fixed, and the guide ball is rotationally connected to the connecting shaft, so that the guide ball can rotate around the connecting shaft under the action of external force. When the invention works, water flow in the main channel flows from upstream to downstream, the diversion ball is impacted to rotate, the rotation direction of the part of the diversion ball outside the convex part always rotates from the upstream to downstream direction of the main channel, and then the water flow in the main channel is driven to move in an arc shape, and stable water flow flowing from the junction of the branch channel and the main channel to the downstream direction of the main channel is generated in the main channel; the water flow in the branch canal enters the main canal and then is carried by the water flow in the main canal to flow, and then the water flow can quickly enter the downstream of the main canal. The invention forms stable arc vortex at the junction of the main channel and the branch channel due to the existence of the diversion ball, so that the water flow in the branch channel can not directly wash the opposite sides of the main channel when entering the main channel, but can quickly flow towards the downstream direction of the main channel along with the water flow in the main channel under the inertia effect of the water flow, so that the water in the branch channel stably merges into the main channel, and further the problems of disordered water flow and serious erosion at the junction in the prior art are solved. In addition, due to the diversion effect of the diversion ball, the side channel water flow can be converged with the main channel water flow more quickly, so that the water flow stability and the drainage efficiency of the junction are improved. And because the flow guiding ball is half located in the main channel, the flow guiding ball can narrow the flow passage at the junction of the main channel, so that the flow speed of the water flow in the main channel is increased at the junction, the rapid bypass of the flow guiding ball is in an arc shape and passes through the junction, and the faster water flow of the main channel has larger kinetic energy, so that the water flow of the branch channel can be carried to flow in the downstream direction of the main channel more effectively. The flow guiding ball in the application does not need to be additionally provided with power equipment for driving, and the main channel can be driven to continuously rotate according to the required direction by utilizing the kinetic energy of the upstream water flow in the main channel, so that long-term and automatic stable work can be ensured, and the flow guiding ball is environment-friendly and energy-saving.
And N guide balls are sleeved on the connecting shaft, wherein N is more than or equal to 2. The connecting axle is vertical to be set up, therefore N water conservancy diversion ball longitudinal distribution on it can work respectively to the main canal rivers of different depths for this application has better commonality.
The top and bottom of the guide ball are both fixed with a sleeve, a bearing is embedded in the inner side of the sleeve, and the connecting shaft penetrates through the sleeve and is connected with the bearing. The sleeve is fixed relatively to the guide ball, and the sleeve is connected with the connecting shaft through a bearing, so that the guide ball can rotate stably through the bearing.
The guide ball is hollow, one end of the sleeve in the axial direction is positioned in the guide ball, the other end of the sleeve is positioned outside the guide ball, and sealing rings are arranged at the upper end and the lower end of the bearing. The flow guiding ball is hollow, so that the weight of the flow guiding ball is reduced, and the flow guiding ball can be driven to rotate by water flow in the main channel more easily, and the water consumption for rotation is reduced. Specifically, the flow guiding balls at different junctions can be used for selecting different weights, materials and hollow degrees according to specific water quantity, so that the lighter the better the strength requirement is met. Sealing rings are arranged at the upper end and the lower end of the bearing, so that the total weight of the diversion ball is prevented from being increased due to the fact that water flows enter the diversion ball.
The guide ball is made of plastic, and the wall thickness of the guide ball is 8-10 cm. The plastic material is light, is favorable for reducing the dead weight of the diversion ball, and has good waterproof capability. The flow guiding ball has the advantages of small wall thickness, limited strength and overlarge wall thickness, and is unfavorable for high-speed rotation, so that 8-10 cm is an optimal scheme obtained by the applicant after a large amount of fumbling.
The junction of the main canal and the branch canal is connected through a four-way joint, the protruding part is one port of the four-way joint, and a plug is arranged at the port of the four-way joint serving as the protruding part. The main canal is connected with two opposite ports of the four-way joint, one port is connected with the branch canal, the remaining port is used as a protruding part, construction is simple, and connection is convenient. For the drainage pipe network of the pipeline, the existing structure is not required to be greatly changed, the type of the connecting joint is only required to be changed, the traditional three-way joint is changed into a four-way joint, the protruding part is plugged by the plug, and the low cost can be realized.
The converging method of the converging node structure based on the municipal drainage pipe network comprises the following steps:
(a) The water flow in the main channel flows from the upstream to the downstream, and the diversion ball is impacted to rotate, so that the rotation direction of the part of the diversion ball outside the convex part always rotates from the upstream to the downstream of the main channel;
(b) The diversion ball rotates to drive the water flow in the main channel to move in an arc shape, and stable water flow flowing in the downstream direction of the main channel from the junction of the branch channel and the main channel is generated in the main channel;
(c) The water flow in the branch channel enters the main channel and then is carried by the water flow in the main channel to flow, and the water flow rapidly enters the downstream of the main channel.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the converging node structure of the municipal drainage pipe network and the converging method thereof, due to the existence of the guide ball, stable arc-shaped vortex is formed at the junction of the main channel and the branch channel, so that water flow in the branch channel does not directly wash the opposite sides of the main channel when entering the main channel, but flows rapidly towards the downstream direction of the main channel along with the water flow in the main channel under the inertia effect, and the water in the branch channel stably merges into the main channel, and further the problems of confusion and serious erosion of the water flow at the junction in the prior art are solved. Due to the diversion effect of the diversion ball, the side canal water flow can be converged with the main canal water flow more quickly, so that the water flow stability and the drainage efficiency of the junction are improved.
2. According to the converging node structure of the municipal drainage pipe network and the converging method thereof, as one half of the guide balls are positioned in the main channel, the flow of the main channel at the junction is narrowed due to the existence of the guide balls, so that the flow speed of the water flow in the main channel at the junction is increased, the flow can quickly bypass the guide balls to pass through the junction in an arc shape, and the faster water flow of the main channel has larger kinetic energy, so that the water flow of the branch channel can be carried to flow in the downstream direction of the main channel more effectively. The flow guiding ball in the application does not need to be additionally provided with power equipment for driving, and the main channel can be driven to continuously rotate according to the required direction by utilizing the kinetic energy of the upstream water flow in the main channel, so that long-term and automatic stable work can be ensured, and the flow guiding ball is environment-friendly and energy-saving.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a top view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view through the axis of a connecting shaft in accordance with an embodiment of the present invention;
fig. 3 is a partial enlarged view at a in fig. 2.
In the drawings, the reference numerals and corresponding part names:
the device comprises a main channel 1, a branch channel 2, a 3-protruding part, a 4-flow guiding ball, a 5-connecting shaft, a 6-sleeve, a 7-bearing, an 8-four-way joint and a 9-plug.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1:
the confluence node structure of the municipal drainage pipe network shown in fig. 1 and 2 comprises a main channel 1 and a branch channel 2 vertically intersecting with the main channel 1, wherein a protruding part 3 opposite to the branch channel 2 is arranged on the main channel 1, and the protruding part 3 and the branch channel 22 are respectively positioned at two sides of the main channel 1 along the axial direction; the novel water diversion device is characterized by further comprising a diversion ball 4 and a connecting shaft 5 passing through the spherical center of the diversion ball 4, wherein the spherical center of the diversion ball 4 is positioned on the intersection line of the main channel 1 and the protruding portion 3, the diversion ball 4 can rotate around the connecting shaft 5, and the connecting shaft 5 is vertically distributed. In this embodiment, due to the existence of the diversion ball 4, stable arc-shaped vortex is formed at the junction of the main channel 1 and the branch channel, so that the water flow in the branch channel does not directly wash the opposite sides of the main channel 1 when entering the main channel 1, but flows rapidly towards the downstream direction of the main channel 1 along with the water flow in the main channel 1 under the inertia effect, so that the water in the branch channel stably merges into the main channel 1, and further the problems of confusion and serious erosion of the water flow at the junction in the prior art are solved. In addition, due to the diversion effect of the diversion ball 4, the water flow in the branch canal can be converged with the water flow in the main canal 1 more quickly, so that the water flow stability and the drainage efficiency at the junction are improved. And because some half of the guide ball 4 is positioned in the main channel 1, the main channel 1 is narrowed at the flow passage of the junction due to the existence of the guide ball 4, so that the flow speed of water flow in the main channel 1 is increased at the junction, the guide ball 4 can be quickly bypassed to pass through the junction in an arc shape, and the faster water flow of the main channel 1 has larger kinetic energy, so that the water flow of the branch channel can be carried by the water flow of the branch channel to flow in the downstream direction of the main channel 1 more effectively. In this embodiment, the diversion ball 4 is not required to be additionally provided with power equipment to drive, and the kinetic energy of the upstream water flow in the main channel 1 can be utilized to drive the main channel 1 to continuously rotate in the required direction, so that long-term and automatic stable work can be ensured, and the device is environment-friendly and energy-saving.
Example 2:
in the structure of the confluence node of the municipal drainage pipe network shown in fig. 1 to 3, on the basis of embodiment 1, two diversion balls 4 are sleeved on the connecting shaft 4. The top and bottom of the guide ball 4 are both fixed with a sleeve 6, a bearing 7 is embedded in the inner side of the sleeve 6, and the connecting shaft 5 passes through the sleeve 6 and is connected with the bearing 7. The guide ball 4 is hollow, one end of the sleeve 6 along the axial direction is positioned in the guide ball 4, the other end of the sleeve is positioned outside the guide ball 4, and sealing rings are arranged at the upper end and the lower end of the bearing 7. The guide ball 4 is made of ABS plastic, and the wall thickness of the guide ball 4 is 10cm. The junction of the main canal 1 and the branch canal 2 is connected through a four-way joint 8, the protruding part 3 is one port of the four-way joint 8, and a plug 9 is arranged at the port of the four-way joint 8 serving as the protruding part 3.
The converging method of the embodiment is as follows:
the water flow in the main channel 1 flows from the upstream to the downstream, and the diversion ball 4 is impacted to rotate the diversion ball 4, so that the rotation direction of the part of the diversion ball 4 outside the convex part 3 always rotates from the upstream to the downstream of the main channel 1;
the diversion ball 4 rotates to drive the water flow in the main channel 1 to move in an arc shape, and stable water flow flowing in the downstream direction of the main channel 1 from the junction of the branch channel 2 and the main channel 1 is generated in the main channel 1;
the water flow in the branch canal 2 enters the main canal 1 and then is carried by the water flow in the main canal 1 to flow, and then quickly enters the downstream of the main canal 1.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The confluence node structure of the municipal drainage pipe network comprises a main channel (1) and a branch channel (2) which is vertically intersected with the main channel (1), and is characterized in that a protruding part (3) which is opposite to the branch channel (2) is arranged on the main channel (1), and the protruding part (3) and the branch channel (2) are respectively positioned at two sides of the main channel (1) along the axial direction; the device further comprises a guide ball (4) and a connecting shaft (5) passing through the spherical center of the guide ball (4), wherein the spherical center of the guide ball (4) is positioned on the intersection line of the main channel (1) and the protruding part (3), the guide ball (4) can rotate around the connecting shaft (5), and the connecting shaft (5) is vertically distributed;
n diversion balls (4) are sleeved on the connecting shaft (5), wherein N is more than or equal to 2;
the top and bottom of the guide ball (4) are both fixed with a sleeve (6), a bearing (7) is embedded in the inner side of the sleeve (6), and the connecting shaft (5) penetrates through the sleeve (6) and is connected with the bearing (7).
2. The confluence node structure of the municipal drainage pipe network according to claim 1, wherein the diversion ball (4) is hollow, one end of the sleeve (6) along the axial direction is positioned in the diversion ball (4), the other end of the sleeve is positioned outside the diversion ball (4), and sealing rings are arranged at the upper end and the lower end of the bearing (7).
3. The confluence node structure of the municipal drainage pipe network according to claim 1, wherein the diversion balls (4) are made of plastic, and the wall thickness of the diversion balls (4) is 8-10 cm.
4. The confluence node structure of the municipal drainage pipe network according to claim 1, wherein the junction of the main canal (1) and the branch canal (2) is connected through a four-way joint (8), the protruding part (3) is one port of the four-way joint (8), and a plug (9) is arranged at the port of the four-way joint (8) serving as the protruding part (3).
5. A method of converging based on the converging node structure of the municipal drainage network according to any one of claims 1 to 4, comprising the steps of:
(a) The water flow in the main channel (1) flows from the upstream to the downstream, the diversion ball (4) is impacted to rotate the diversion ball (4), and the rotating direction of the part of the diversion ball (4) outside the convex part (3) always rotates from the upstream to the downstream of the main channel (1);
(b) The diversion ball (4) rotates to drive the water flow in the main channel (1) to move in an arc shape, and stable water flow flowing from the junction of the branch channel (2) and the main channel (1) to the downstream direction of the main channel (1) is generated in the main channel (1);
(c) The water flow in the branch canal (2) enters the main canal (1) and then is carried by the water flow in the main canal (1) to flow, and then quickly enters the downstream of the main canal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585067.9A CN110195465B (en) | 2019-07-01 | 2019-07-01 | Converging node structure of municipal drainage pipe network and converging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585067.9A CN110195465B (en) | 2019-07-01 | 2019-07-01 | Converging node structure of municipal drainage pipe network and converging method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110195465A CN110195465A (en) | 2019-09-03 |
| CN110195465B true CN110195465B (en) | 2024-02-06 |
Family
ID=67755568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910585067.9A Active CN110195465B (en) | 2019-07-01 | 2019-07-01 | Converging node structure of municipal drainage pipe network and converging method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110195465B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500997A (en) * | 1974-04-25 | 1978-02-15 | Sony Corp | Peak detector circuits |
| CN101929144A (en) * | 2010-09-02 | 2010-12-29 | 青岛光明环保技术有限公司 | Oil containment backwater bay |
| CN203200711U (en) * | 2013-04-23 | 2013-09-18 | 河海大学 | River way intersection zone rapid-slow flow smooth transition flow guiding structure |
| CN204083605U (en) * | 2014-07-10 | 2015-01-07 | 杭州宏升塑胶有限公司 | The vertical anti-cyclone tee pipe fitting of a kind of drainage pipe |
| CN104594469A (en) * | 2015-01-15 | 2015-05-06 | 上海深海宏添建材有限公司 | Helical single-blade cyclone for building drainage |
| CN205978938U (en) * | 2016-08-22 | 2017-02-22 | 浙江富源制冷设备股份有限公司 | Tee bend three -jaw special -shaped pipe fitting |
| CN108793491A (en) * | 2018-06-08 | 2018-11-13 | 四川盈乾建设工程有限公司 | Artificial water enters Lake Water cleaning treatment structure |
| CN108999152A (en) * | 2018-09-11 | 2018-12-14 | 中国水利水电科学研究院 | The distribution method and garbage barrier net of garbage barrier net in a kind of bend water intaking open channel |
| CN109024492A (en) * | 2018-09-03 | 2018-12-18 | 桂林市水利电力勘测设计研究院 | Channel |
| CN210194816U (en) * | 2019-07-01 | 2020-03-27 | 中信国安建工集团有限公司 | Confluence node structure of municipal drainage pipe network |
-
2019
- 2019-07-01 CN CN201910585067.9A patent/CN110195465B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500997A (en) * | 1974-04-25 | 1978-02-15 | Sony Corp | Peak detector circuits |
| CN101929144A (en) * | 2010-09-02 | 2010-12-29 | 青岛光明环保技术有限公司 | Oil containment backwater bay |
| CN203200711U (en) * | 2013-04-23 | 2013-09-18 | 河海大学 | River way intersection zone rapid-slow flow smooth transition flow guiding structure |
| CN204083605U (en) * | 2014-07-10 | 2015-01-07 | 杭州宏升塑胶有限公司 | The vertical anti-cyclone tee pipe fitting of a kind of drainage pipe |
| CN104594469A (en) * | 2015-01-15 | 2015-05-06 | 上海深海宏添建材有限公司 | Helical single-blade cyclone for building drainage |
| CN205978938U (en) * | 2016-08-22 | 2017-02-22 | 浙江富源制冷设备股份有限公司 | Tee bend three -jaw special -shaped pipe fitting |
| CN108793491A (en) * | 2018-06-08 | 2018-11-13 | 四川盈乾建设工程有限公司 | Artificial water enters Lake Water cleaning treatment structure |
| CN109024492A (en) * | 2018-09-03 | 2018-12-18 | 桂林市水利电力勘测设计研究院 | Channel |
| CN108999152A (en) * | 2018-09-11 | 2018-12-14 | 中国水利水电科学研究院 | The distribution method and garbage barrier net of garbage barrier net in a kind of bend water intaking open channel |
| CN210194816U (en) * | 2019-07-01 | 2020-03-27 | 中信国安建工集团有限公司 | Confluence node structure of municipal drainage pipe network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110195465A (en) | 2019-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103510493A (en) | Low overflow dam cave depot type hydropower station | |
| CN110195465B (en) | Converging node structure of municipal drainage pipe network and converging method thereof | |
| KR20120126503A (en) | Pipe Member For Water Supply And Drainage | |
| CN105257454B (en) | A kind of water channeling type swirling water current electricity generation system | |
| CN104773831A (en) | Reaeration device and reaeration method for constructed wetland | |
| CN210194816U (en) | Confluence node structure of municipal drainage pipe network | |
| CN101092815A (en) | System of hydraulic power station located at side of river in use for reducing water level of river | |
| CN105089016B (en) | Hawser draws herringbone check dam | |
| CN213868162U (en) | City planning municipal drainage pipe | |
| CN212564802U (en) | Anti-blocking pipeline for irrigation and water conservancy | |
| CN208056238U (en) | A kind of ring-type drainage pipeline networks | |
| CN207569390U (en) | A kind of anti-corrosion reinforced concrete sewer pipe | |
| CN208501857U (en) | A kind of drainage system that Box-shaped Drainage Culvert is not deposited | |
| CN214034017U (en) | Double-flow-guide rainwater sand settling device | |
| CN206222750U (en) | Bushing type ground heat exchanger | |
| CN105714746B (en) | Pressure slope formula ventilation shaft for high water head flood discharging tunnel mid-gate chamber | |
| CN210797683U (en) | Basalt fiber drainage pipeline with multiple apertures | |
| CN220058189U (en) | Drainage device | |
| CN213709787U (en) | Highway construction is with drainage pipe who has fixed establishment | |
| CN216379873U (en) | Unpowered flow-stopping and flow-limiting backflow-preventing system | |
| CN220978284U (en) | Novel rain and sewage diversion intercepting well structure | |
| CN204153375U (en) | Pipeline structure | |
| CN108487413A (en) | The sewage pipe and its installation method of energy water conservancy diversion | |
| CN211898858U (en) | Siphon drain pipe and siphon drain pipe | |
| CN212866249U (en) | Rainwater and sewage diversion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |