CN212248619U - Sewage intercepting well capable of preventing backflow - Google Patents
Sewage intercepting well capable of preventing backflow Download PDFInfo
- Publication number
- CN212248619U CN212248619U CN202020423434.3U CN202020423434U CN212248619U CN 212248619 U CN212248619 U CN 212248619U CN 202020423434 U CN202020423434 U CN 202020423434U CN 212248619 U CN212248619 U CN 212248619U
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- Prior art keywords
- weir
- sewage
- intercepting well
- well
- intercepting
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- 239000010865 sewage Substances 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 229920006351 engineering plastic Polymers 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a sewage intercepting well capable of preventing backflow, wherein a grid is arranged at the port of a water inlet pipe positioned at the front side of the intercepting well, a weir wall is arranged at the middle part of the intercepting well, a sewage pump is fixed at the bottom of the intercepting well between the grid and the weir wall, and the sewage pump is connected to a sewage treatment pool through an intercepting sewage pipe; the part of the weir wall close to the top is connected with a rotatable buoyancy check weir, and the rotating end of the buoyancy check weir corresponds to the effluent confluence pipe of the intercepting well; the top of the weir wall is equal to the top of the water inlet pipe and the water outlet pipe in height; the height of the tail end of the buoyancy check weir after the buoyancy check weir completely floats is larger than the height of the water surface of the river at the local large rainy season or flood season.
Description
Technical Field
The utility model belongs to the technical field of sanitation engineering, concretely relates to municipal sewage holds back processing apparatus.
Background
In current urban construction, because the earlier stage planning of city underground pipe network is owed all over and the construction is not comprehensive, including partial resident is not strong to the reposition of redundant personnel of rain and sewage, then the ubiquitous rain sewage pipeline thoughtlessly connects row, wrong grafting wrong row phenomenon in many present urban districts, including often empting sewage at will along street shops and stall dealer, lead to a large amount of sewage to get into rainwater pipeline by mistake, and then arrange into the river course, seriously pollute river course quality of water. In order to improve the water quality of a river channel, beautify the urban environment, create a more beautiful urban image and improve the living quality of residents, the mixed sewage and mixed drainage phenomenon needs to be remedied urgently. Aiming at the problem of sewage mixed drainage, the sewage mixed drainage method can generally adopt two modes of drought flow sewage interception and shunt reconstruction to carry out remediation, and the sewage intercepting well can effectively separate and discharge sewage in a rainwater pipeline into a sewage pipeline as a common mode. However, the conventional sewage intercepting well can intercept a large amount of backward flowing rainwater or river water to the sewage pipeline indiscriminately during rainstorm, increase the operation load of the peripheral sewage pipeline and increase the operation and treatment pressure and cost of a downstream treatment plant. There is a need for better solutions to overcome this situation.
Disclosure of Invention
The utility model aims at overcoming the defect that the river water flows backward during the rainstorm period in the existing sewage catch basin and causes the overload operation of the sewage treatment department, and providing a sewage catch basin structure which can automatically stop the river water flowing backward and can normally arrange the rainwater in sequence.
The purpose of the utility model is realized through the following technical scheme.
A sewage intercepting well capable of preventing backflow is characterized in that a grille is mounted at the port of a water inlet pipe positioned on the front side of the intercepting well, a weir wall is arranged in the middle of the intercepting well, a sewage pump is fixed at the bottom of the intercepting well between the grille and the weir wall, and the sewage pump is connected to a sewage treatment pool through an intercepting sewage pipe; the part of the weir wall close to the top is connected with a rotatable buoyancy check weir, and the rotating end of the buoyancy check weir corresponds to the effluent confluence pipe of the intercepting well; the top of the weir wall is equal to the top of the water inlet pipe and the water outlet pipe in height; the height of the tail end of the buoyancy check weir after the buoyancy check weir completely floats is larger than the height of the water surface of the river at the local large rainy season or flood season.
The non-return weir on the weir wall can ensure that the rainwater pipe works normally under the premise of no backflow by the difference between the water level in the well and the water level in the river channel, the water level of the river channel is higher than the water level in the well in sunny days, the sewage interception pump is in an open state at the moment, and all domestic sewage flows into the sewage interception pipe; in rainy days, the water level in the well gradually rises, the sewage intercepting pump is closed, and rainwater is directly discharged by turning over the non-return weir.
According to the preferable scheme, a well body of the intercepting well is made of concrete or reinforced concrete, an inspection well is arranged at the upper part of the well body, and the specification of the inspection well is determined according to the specification of the confluence pipe.
In the preferred scheme, the check weir is made of hard engineering plastics, and the check weir made of the hard engineering plastics is subjected to buoyancy increasing structural treatment to enable the integral average density to be less than the density of water; the non-return weir is hinged on one side of the weir wall facing the water outlet confluence pipe.
Preferably, the buoyancy increasing process includes a process of attaching a foam to an upper portion of the check weir, or a structure in which the check weir is designed to be a hollow body and is subjected to a sealing process.
In the preferable scheme, a vertical limiting shoulder is arranged at the rear side of the check weir near the hinge joint; two side wings of the non-return weir are provided with soft elastic structures which can be in sealing contact with the well wall, and the part in sealing contact with the well wall is coated with polytetrafluoroethylene.
In the preferred scheme, the intercepting sewer is made of HDPE winding pipes.
Preferably, the sewage pipe that dams chooses for use the HDPE winding pipe to be 300mm specification.
Preferably, the sewage pump is a submersible pump.
Preferably, the grid arranged at the port of the water inlet pipe is a shatter-type grid.
The utility model has the advantages that:
1. a rotatable buoyancy non-return weir is arranged, a one-way water flow channel is automatically formed under a certain water level condition, and the one-way water flow channel is arranged to flow downstream and stop the counter flow;
2. the grating arranged at the port of the water inlet pipe is a shatter type grating, so that sundry garbage such as plants, plastics, fibers and the like in a sewage pipe network can be intercepted and smashed by using an attached motor and a blade, and other equipment in a pump station, particularly a sewage pump, can be protected from normal operation;
3. the height of the tail end of the buoyancy check weir after the buoyancy check weir completely floats is greater than the height of the water surface of the river channel in the local large rainy season or flood season; ensuring that river water which is possibly poured backwards in rainstorm season is cut off;
4. the non-return weir is made of hard engineering plastics and is treated by a buoyancy increasing structure to ensure that the integral average density is less than the density of water;
5. 300mmHDPE winding pipe is selected for the intercepting sewer, and the HDPE plastic-steel winding pipe has the advantages of steel belt rigidity, polyethylene corrosion resistance, low friction resistance, abrasion resistance, long service life and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: an intercepting well 1; a water inlet pipe 2; a crushing type grid 3; a weir wall 4; a sewage pump 5; an intercepting sewer 6; a check weir 7; a confluence pipe 8; an inspection well 9; a vertical position-limiting shoulder 10.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
A sewage intercepting well capable of preventing backflow is characterized in that a pure type grating 3 is installed at the port of a water inlet pipe 2 located on the front side of the intercepting well 1, a weir wall 4 is arranged in the middle of the intercepting well 1, a sewage pump 5 is fixed at the bottom of the intercepting well 1 between the pure type grating 3 and the weir wall 4, and the sewage pump 5 is connected to a sewage treatment pool through an intercepting sewage pipe 6; the part of the weir wall 4 close to the top is hinged with a rotatable buoyancy check weir 7, and the rotating end of the buoyancy check weir 7 faces to an effluent confluence pipe 8 of the intercepting well; the top of the weir wall 4 is as high as the top of the water inlet pipe 2 and the confluence pipe 8; the height of the tail end of the buoyancy check weir 7 after the buoyancy check weir 7 completely floats is larger than the maximum height of the water surface of the river at the local large rainy season or flood season.
The well body of vatch basin 1 is concrete or reinforced concrete constitution, and the upper portion of well body is provided with inspection shaft 9, and the size, bottom plate arrangement of reinforcement, roof arrangement of reinforcement of inspection shaft 9 are all confirmed by the confluence pipe 8 specification.
The check weir 7 is made of hard engineering plastics, and the check weir 7 made of the hard engineering plastics needs to be subjected to structural treatment for increasing buoyancy to enable the integral average density to be less than the density of water. The rear side of the non-return weir 7 is provided with a vertical limiting shoulder 10 which is firm enough near the hinge, two side wings of the non-return weir 7 are provided with soft elastic structures which can be in sealing contact with the well wall, and the part in sealing contact with the well wall can be coated with polytetrafluoroethylene. The buoyancy increasing process includes a process of connecting a foam to the upper portion of the check weir 7, or a structure in which the check weir 7 is designed to be a hollow body and a plurality of reinforcing ribs are provided inside the hollow structure while being sealed. The non-return weir 7 is designed and manufactured into a hollow cavity by compression molding, and can also be finished by a secondary processing method of plastic plate welding. Because only a few kinds of common engineering plastics, such as polypropylene plastics, are plastics with density lower than that of water, and the rest plastics, including common hard engineering plastics, have density higher than that of water, the hard engineering plastics must be subjected to structural treatment with increased buoyancy to achieve the purpose of floating on the water surface in a rotating way. The non-return weir 7 is hinged on one side of the weir wall 4 towards the water outlet confluence pipe 8, so that the reverse flow of the river water outside the intercepting well 1 can be effectively prevented. The check weir 7 on the weir wall 4 is different from the river water level to ensure that the drainage normally works on the premise of not flowing backwards, the river water level is higher than the water level in the well in sunny days, the sewage pump 5 is in an open state at the moment, and all domestic sewage flows into the intercepting sewage pipe 6; in rainy days, the water level in the well gradually rises, the sewage pump 5 is closed, and the rainwater is directly discharged by turning over the non-return weir 7.
300mm HDPE winding pipes are selected as the intercepting sewer 6. The HDPE plastic steel winding pipe has the advantages of integrating the rigidity of a steel belt and the corrosion resistance, low frictional resistance, abrasion resistance and the like of polyethylene.
The sewage pump 5 is a submersible pump, and the opening and closing of the sewage pump 5 are automatically controlled by the liquid level in the intercepting well 1.
The shatter type grating 3 arranged at the port of the water inlet pipe 2 can intercept sundry garbage such as plants, plastics, fibers and the like in a sewage pipe network and shatter the sundry garbage by using an attached motor and a blade so as to protect other equipment in a pump station, particularly a sewage pump 5, from normal operation.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A sewage intercepting well capable of preventing backflow is characterized in that a grille is mounted at the port of a water inlet pipe positioned on the front side of the intercepting well, a weir wall is arranged in the middle of the intercepting well, a sewage pump is fixed at the bottom of the intercepting well between the grille and the weir wall, and the sewage pump is connected to a sewage treatment pool through an intercepting sewage pipe; the part of the weir wall close to the top is connected with a rotatable buoyancy check weir, and the rotating end of the buoyancy check weir corresponds to the effluent confluence pipe of the intercepting well; the top of the weir wall is equal to the top of the water inlet pipe and the water outlet pipe in height; the height of the tail end of the buoyancy check weir after the buoyancy check weir completely floats is larger than the height of the water surface of the river at the local large rainy season or flood season.
2. The intercepting well for sewage water capable of preventing backflow as claimed in claim 1, wherein the intercepting well body is made of concrete or reinforced concrete, and an inspection well is provided at an upper portion of the intercepting well body, and the specification of the inspection well is determined according to the specification of the confluence pipe.
3. The sewage intercepting well capable of preventing backward flow as claimed in claim 2, wherein the check weir is made of hard engineering plastics, and the check weir made of hard engineering plastics is subjected to a structural treatment of buoyancy increase so as to achieve an overall average density less than that of water; the non-return weir is hinged on one side of the weir wall facing the water outlet confluence pipe.
4. The sewage intercepting well preventing backflow according to claim 3, wherein the structural treatment for buoyancy increase comprises a treatment of attaching foam to an upper portion of the check weir, or a structure in which the check weir is designed to be a hollow body and is subjected to a sealing treatment.
5. A sewage intercepting well capable of preventing backflow according to claim 1, 2, 3 or 4, wherein a vertical limiting shoulder which is firm enough is arranged at the rear side of the non-return weir near the hinge joint; two side wings of the non-return weir are provided with soft elastic structures which can be in sealing contact with the well wall, and the part in sealing contact with the well wall is coated with polytetrafluoroethylene.
6. The intercepting well of sewage capable of preventing backward flow according to claim 5, wherein the intercepting sewer is a HDPE winding pipe.
7. The intercepting well of claim 6, wherein the sewage pump is a submersible pump.
8. The sewage intercepting well capable of preventing backflow according to claim 7, wherein the grating installed at the port of the water inlet pipe is a shatter type grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423434.3U CN212248619U (en) | 2020-03-30 | 2020-03-30 | Sewage intercepting well capable of preventing backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423434.3U CN212248619U (en) | 2020-03-30 | 2020-03-30 | Sewage intercepting well capable of preventing backflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212248619U true CN212248619U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020423434.3U Expired - Fee Related CN212248619U (en) | 2020-03-30 | 2020-03-30 | Sewage intercepting well capable of preventing backflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212248619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854416A (en) * | 2021-03-05 | 2021-05-28 | 无锡市政设计研究院有限公司 | Backflow-preventing intercepting well and operation method thereof |
-
2020
- 2020-03-30 CN CN202020423434.3U patent/CN212248619U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854416A (en) * | 2021-03-05 | 2021-05-28 | 无锡市政设计研究院有限公司 | Backflow-preventing intercepting well and operation method thereof |
| CN112854416B (en) * | 2021-03-05 | 2024-06-11 | 华昕设计集团有限公司 | Backflow-preventing intercepting well and operation method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |