CN108005208A - Based on the pressure sensing municipal drainage system of rainwater - Google Patents
Based on the pressure sensing municipal drainage system of rainwater Download PDFInfo
- Publication number
- CN108005208A CN108005208A CN201711264278.XA CN201711264278A CN108005208A CN 108005208 A CN108005208 A CN 108005208A CN 201711264278 A CN201711264278 A CN 201711264278A CN 108005208 A CN108005208 A CN 108005208A
- Authority
- CN
- China
- Prior art keywords
- siphunculus
- rainwater
- storm sewer
- pressure sensing
- drainage system
- 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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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- 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
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
The invention discloses one kind to be based on the pressure sensing municipal drainage system of rainwater, it is in the storm sewer and sewage conduct that are distributed up and down that this is included in underground based on the pressure sensing municipal drainage system of rainwater, and the hydraulic pressure sensor for sensed water level is provided with the storm sewer；The inner cavity top of the sewage conduct is provided with turbulated tube, and the port connected with sewage conduct inner cavity is provided with the tube wall of the turbulated tube；Siphunculus is provided with and communicated between the storm sewer and turbulated tube, the shut-off valve for starting to automatically open up when storm sewer water level reaches threshold value is provided with the siphunculus, each shut-off valve corresponds to a hydraulic pressure sensor, wherein threshold value reaches more than 1/3rd designated value of storm sewer depth of section for water level, with raising pipe-line system utilization rate, reduce that storm sewer is seasonal or periodic discharge pressure, the advantages of automatic dredging keeps two big pipe-line system drainings unobstructed.
Description
Technical field
It is more particularly to a kind of to be based on the pressure sensing municipal drainage system of rainwater the present invention relates to a kind of sewerage system
System.
Background technology
Municipal discharge principle should be the dirty shunting of rain, so municipal drainage pipe distribution system can be mainly divided into sewage pipe system
With rainwater guard system.Wherein the stringing of sewage conduct is normally at the deeper position of ground end relative to the stringing of storm sewer.
But in sewer system, since debris is more in sewage, pipeline can be infected with the long-term use compared with
More mud, greasy dirt etc., it is not easily cleaned, and long-term accumulation can block sewage conduct, and difficulty is brought to sewage drainage；Disposal costs
It is high.
Since its stringing is shallower but caliber and discharge capacity are to larger, its pipe distribution system can be subject to city in Stormwater Drainage System
The limitation of city's planning；In the city in China, due to many because rainfall changes greatly, storm sewer stringing is limited and is difficult to increase
Discharge capacity；Or because rain-water drainage facility imperfection, cause line clogging, and waterlogging is formed, influence the safety of pedestrian and vehicle.
And if by two big pipe-line system intercommunications, the pollutant in sewage can be spread again, increase storm sewer water quality
Processing cost.
Two big pipe-line systems how are balanced, improve pipe-line system utilization rate, keep two big pipe-line system drainings unobstructed, are solutions
The certainly key of sewage conduit cleaning problem and the spill-over problem of storm sewer.
The content of the invention
The object of the present invention is to provide one kind to be based on the pressure sensing municipal drainage system of rainwater, has and improves pipe-line system
The advantages of utilization rate, two big pipe-line system draining of holding is unobstructed.
The present invention above-mentioned technical purpose technical scheme is that：
One kind is based on the pressure sensing municipal drainage system of rainwater, and it is in the storm sewer and sewage pipe being distributed up and down to be included in underground
Road, the hydraulic pressure sensor for sensed water level is provided with the storm sewer；The inner cavity top of the sewage conduct is provided with
Turbulated tube, is provided with the port connected with sewage conduct inner cavity on the tube wall of the turbulated tube；The storm sewer and turbulated tube
Between be provided with and communicated with siphunculus, the cut-off for starting to automatically open up when storm sewer water level reaches threshold value is provided with the siphunculus
Valve, each shut-off valve correspond to a hydraulic pressure sensor, and wherein threshold value reaches 1/3rd of storm sewer depth of section for water level
Designated value above.
Using the above scheme, shut-off valve is in closed state under usual situation, thus keeps two pipelines separate；
It is right when somewhere water level is in higher since the different duct-like height in position can be slightly different in Stormwater Drainage System
Answer the detection of position hydraulic pressure sensor and feedback signal opened to shut-off valve, shut-off valve, turn on siphunculus, in the water in storm sewer into
Enter siphunculus and entered by the port of turbulated tube in sewage conduct.During this, the load of storm sewer is firstly reduce, is protected
Hold its good drainage performance；Secondly the water for entering sewage conduct is to enter sewage conduct in a manner of impacting from port
In, if not having sewage in sewage conduct, due to the effect of drop, the water poured can play what is washed away to the tube wall of sewage conduct
Effect, with to clearing up stain therein；If there is the sewage of trickling in sewage conduct, pouring water can be to the advection of sewage
State plays the role of upset, to become laminar flow as turbulent flow, so that the particulate matter for preventing to be suspended in sewage is attached to sewage conduct
Inner wall, the unobstructed of sewage conduct is ensured with this；In conclusion using this pipe-line system, pipe-line system utilization rate is improved, is protected
It is unobstructed to hold two big pipe-line system drainings.
More preferably：At least two prevention gases are provided with the siphunculus and flow to storm sewer from sewage conduct
Non-return valve.
Using the above scheme, non-return valve can prevent sewage in sewage conduct or pernicious gas reflux to storm sewer
It is interior.
More preferably：Top in the turbulated tube is provided with cage net, is provided with water-absorbing sponge in the cage net, institute
State cage net and be located at the end of siphunculus and between the port of siphunculus.
Using the above scheme, when crossing water, the water that water enters in turbulated tube mainly passes through from the lower part of cage net, and complete
The full lower part for being full of cage net, lower part encloses passage in a manner of water seal；And gas can be prevented after the water-absorbing sponge infiltration on top
Body by that and can keep water by can effectively prevent pernicious gas from entering from the top gap of barretter with this at the same time
In siphunculus.
More preferably：The internal diameter of the siphunculus is less than the radius of sewage conduct, and the turbulated tube is less than siphunculus
Diameter.
Using the above scheme, sewage conduct is also required to keep exhaust while draining, in a normal state sewage conduct
All be non-flowing full state, and general flow be continuation below radius section, storm sewer need urgent draining when
Time can utilize this space, this is and control to siphunculus flow；In addition, at nominal conditions, the caliber of storm sewer
At least more than twice of sewage conduct, is to be in flowing full state when siphunculus is opened；The caliber of turbulated tube is less than siphunculus,
Under the situation of siphunculus flowing full, the flow velocity of turbulated tube will be entered by siphunculus to be increased, and also improve the water that sewage conduct is poured from port
Impact force is flowed, upsets the flow regime of sewage conduct, and effectively clears up the deposit in sewage conduct.
More preferably：The port is inverted V-shape notch, and generation piece has been erected in the center of each port,
The diameter of the generation piece is identical with the internal diameter of turbulated tube, and the center that piece occurs offers compensation hole.
Using the above scheme, the structure of similar nozzle is formd between port and generation piece, the water of turbulated tube is in turbulated tube
When upper flowing, because of the stop and shock that are subject to piece occurs frequently so that most of water passes through port to sewage from turbulated tube
Pipeline produces subduction, is perturbed so that the mud to the residual buildup of sewage conduct adds one, so that being intended to sink originally
Product is continued to move in the sediment of the residual buildup of tube bottom under the action of turbulated tube；When sewage conduct lower part, appearance is more serious
During phenomenon of depositing, the increase of local pressure drag, the sewage of sewage conduct internal upper part is intended to change because of blocking at this time walks turbulated tube, at this time just and
Underriding fluid at nozzle produces convection current, at siltation, forms stronger turbulent flow, so that the mud of fluff packing, alleviates and block.
More preferably：/ 3rd of a diameter of generation piece diameter in the compensation hole arrive half.
Using the above scheme, the effect for compensating hole is the connection of turbulated tube fluid passage, in order to ensure circulation compensation hole
Aperture, which cannot be less than, occurs 1/3rd of piece diameter, while the generation piece where compensating hole is to stop fluid, is hit so as to change
Fluid direction forms the component of turbulent flow, so the internal diameter in compensation hole can not be too big, cannot generally be more than half.
More preferably：Every siphunculus is all connected with a turbulated tube, and the other end of the turbulated tube is closed so that piece occurs.
Using the above scheme so that it is respectively separate with the current of the turbulated tube of storm sewer indirect communication, to avoid because
To access the interface of storm sewer because there are the situation that drop causes adverse current；And the endcapped formula processing to turbulated tube can
To ensure the flow of port.
More preferably：The shut-off valve is electric check valve.
Using the above scheme, electric check valve reaction speed is fast, and can be regulated and controled in time, but it needs to access circuit
Will installation and maintenance cost loss.
More preferably：The hydraulic pressure sensor includes conduit, the floating ball in conduit and is articulated with floating ball bottom
The pull rod in portion, wherein the conduit is located at the top of the mouth of pipe of siphunculus；The shut-off valve includes the inner wall that upset is connected to siphunculus
Partition plate；The other end of the pull rod is articulated with partition plate, is provided with the inner wall of the siphunculus in distribution up and down and difference position
Stop part in partition plate center of rotation both sides, wherein, the stop part close to partition plate and the hinge joint side of pull rod is located at partition plate
Lower section.
Using the above scheme, sensed by the floating type automatic water level of floating ball, water level rises to threshold value in storm sewer
When, floating ball is just bubbled through the water column, and as water level rises, floating ball floats to be overturn with dynamic dividing plate, and opens the passage shape of siphunculus；Equally
In water level decreasing, the circulation passage passed through is closed；Conduit therein can limit the position of floating ball, and guiding is provided for floating ball,
And completely cut off influence of the current in storm sewer to floating ball at the same time；And the design of partition plate upset can then eliminate hydraulic pressure to switch
Interference.
More preferably：The partition plate is respectively arranged with two magnetic to attract each other with the side that stop part mutually abuts
Pole.
Using the above scheme, magnetic pole can improve sealing effect, and provide holding when strengthening being not turned on siphunculus
The precompression of closing.
In conclusion the invention has the advantages that：
1st, pipe-line system utilization rate is improved, reduces that storm sewer is seasonal or periodic discharge pressure, keeps two big pipeline systems
Draining of uniting is unobstructed；
2nd, the attachment in sewage conduct is cleared up automatically in a manner of turbulent flow and impact, reduce the blocking of sewage conduct；
3rd, the non-return protection of sufficient gas and water, prevents the sewage and waste pollution storm sewer of sewage conduct.
Brief description of the drawings
Fig. 1 is the structure diagram of the drainage system of embodiment 1；
Fig. 2 is the sewage conduct of embodiment 1 and the structure chart of turbulated tube；
Fig. 3 is enlarged drawings of the Fig. 2 of embodiment 1 at A；
Fig. 4 is the structure diagram of the drainage system of embodiment 2；
Fig. 5 is enlarged drawings of the Fig. 4 of embodiment 2 at B.
In figure, 1, storm sewer；2nd, sewage conduct；3rd, siphunculus；4th, turbulated tube；5th, hydraulic pressure sensor；6th, shut-off valve；7th, it is inverse
Only valve；8th, cage net；41st, port；42nd, piece occurs；421st, hole is compensated；51st, floating ball；52nd, conduit；53rd, pull rod；61st, partition plate；62、
Stop part；81st, water-absorbing sponge.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the protection domain of invention be subject to Patent Law.
Embodiment 1：Based on the pressure sensing municipal drainage system of rainwater, as shown in Figure 1, being included in underground in distribution up and down
Storm sewer 1 and sewage conduct 2；Wherein, the hydraulic pressure sensor 5 for sensed water level is provided with storm sewer 1；Sewage pipe
The inner cavity top in road 2 is provided with the turbulated tube 4 connected with 2 inner cavity of sewage conduct；Connection is set between storm sewer 1 and turbulated tube 4
Siphunculus 3 is equipped with, every siphunculus 3 is all connected with a turbulated tube 4.The internal diameter of siphunculus 3 is less than the radius of sewage conduct 2, turbulated tube 4
Less than the diameter of siphunculus 3.
The shut-off valve 6 for starting to automatically open up when 1 water level of storm sewer reaches threshold value and two resistances are provided with siphunculus 3
Only gas flows to the non-return valve 7 of storm sewer 1 from sewage conduct 2.Shut-off valve 6 is electric check valve 6, and each shut-off valve 6 corresponds to
One hydraulic pressure sensor 5, wherein threshold value reach more than 1/3rd designated value of 1 depth of section of storm sewer for water level；This
A threshold value can change according to the climate condition and stringing situation difference in city existing, generally using the peak level of non-flood period as
It is accurate.Non-return valve is located at the lower section of shut-off valve 6 and possesses the precompression for having and closing siphunculus 3 from the bottom to top.
With reference to Fig. 2 and Fig. 3, port 41 is provided with the tube wall of turbulated tube 4, port 41 is inverted V-shape notch, each
The center of port 41, which has been erected, occurs piece 42, and the diameter of generation piece 42 is identical with the internal diameter of turbulated tube 4, and the center that piece 42 occurs is opened
Equipped with compensation hole 421, the half of a diameter of 42 diameter of generation piece in compensation hole 421.The one end of turbulated tube 4 away from siphunculus 3
Closed so that piece 42 occurs.
Top in turbulated tube 4 is provided with cage net 8, and water-absorbing sponge 81 is provided with cage net 8, and cage net 8 is located at the end of siphunculus 3
Hold and between the port 41 of siphunculus 3.
Working method：
Under usual situation, the water flow in storm sewer 1 is less, and shut-off valve 6 is in closed state, and two pipelines are separate.
In flood season, flow is larger in storm sewer 1, and water level is higher, and at this time, hydraulic pressure sensor 5 detects water level information simultaneously
Opening stop valve 6 at the same time, the water in storm sewer 1 enters sewage conduct 2 via siphunculus 3, turbulated tube 4, to reduce storm sewer 1
Hydrophobic pressure reduce.Also, during water is from turbulated tube 4 into sewage conduct 2, shape between port 41 and generation piece 42
Into the structure of similar nozzle, the water of turbulated tube 4 on turbulated tube 4 when flowing, because of the stop for being subject to piece 42 occurs frequently
And shock so that most of water produces subduction from turbulated tube 4 by port 41 to sewage conduct 2, so as to give sewage conduct 2
The mud of delay add one and perturb so that the sediment of the residual buildup of original tube bottom to be deposited on was in turbulated tube 4
Under the action of continue to move to.When more serious siltation phenomenon occurs in 2 lower part of sewage conduct, local pressure drag increases, at this time sewage
The sewage of 2 internal upper part of pipeline is intended to change because of blocking walks turbulated tube 4, and the underriding fluid just and at nozzle produces convection current at this time, is becoming silted up
At product, stronger turbulent flow is formed, so that the mud of fluff packing, alleviates and block.
Reverse sealing gland, sealing gland mainly have three nodes, and two non-return valves 7 form sealing gland in non-flood period；Cage net 8 is in flood season
Sealing gland is formed, during flood season, water mainly passes through from the lower part of cage net 8, and is full of the lower part of cage net 8 completely, and lower part is with water seal
Mode encloses passage；And the water-absorbing sponge 81 on top can prevent gas by that and water can be kept to pass through at the same time after infiltrating.
For the relatively low sewage conduct 2 in position, non-return valve plays the role of preventing sewage backflow at the same time.
Embodiment 2：As shown in Figure 4 and Figure 5, the difference with embodiment 1 is, hydraulic pressure sensor 5 and shut-off valve 6 are
The mechanical mechanism of linkage is produced by buoyancy.Hydraulic pressure sensor 5 includes conduit 52, the floating ball 51 in conduit 52 and hinge
The pull rod 53 of 51 bottom of floating ball is connected to, wherein conduit 52 is located at the top of the mouth of pipe of siphunculus 3；Shut-off valve 6 is connected to including upset
The partition plate 61 of the inner wall of siphunculus 3；The other end of pull rod 53 is articulated with partition plate 61, is provided with the inner wall of siphunculus 3 in upper and lower point
Cloth and the stop part 62 for being located at 61 center of rotation both sides of partition plate respectively, wherein, close to the hinge joint side of partition plate 61 and pull rod 53
Stop part 62 be located at the lower section of partition plate 61.Partition plate 61 is respectively arranged with two with the side that stop part 62 mutually abuts and mutually inhales
The magnetic pole drawn.
Sensed by the floating type automatic water level of floating ball 51, when water level rises to threshold value in storm sewer 1, floating ball 51 is firm
Bubble through the water column well, as water level rises, floating ball 51 floats to be overturn with dynamic dividing plate 61, and opens the passage shape of siphunculus 3；Equally in water
When position declines, the circulation passage passed through is closed.
Claims (10)
1. one kind be based on the pressure sensing municipal drainage system of rainwater, be included in underground in the storm sewer (1) that is distributed up and down and
Sewage conduct (2), the interior hydraulic pressure sensor (5) being provided with for sensed water level of the storm sewer (1)；The sewage conduct
(2) inner cavity top is provided with turbulated tube (4), is provided with the tube wall of the turbulated tube (4) and is connected with sewage conduct (2) inner cavity
Port (41)；Siphunculus (3) is provided with and communicated between the storm sewer (1) and turbulated tube (4), is set in the siphunculus (3)
There is the shut-off valve (6) for starting to automatically open up when storm sewer (1) water level reaches threshold value, each shut-off valve (6) corresponds to a water
Pressure sensor (5), wherein threshold value reach more than 1/3rd designated value of storm sewer (1) depth of section for water level.
2. according to claim 1 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The siphunculus (3)
Inside it is provided with the non-return valve (7) that at least two prevention gases flow to storm sewer (1) from sewage conduct (2).
3. according to claim 2 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The turbulated tube
(4) top in is provided with cage net (8), is provided with water-absorbing sponge (81) in the cage net (8), the cage net (8) is located at siphunculus
(3) end and between the port (41) of siphunculus (3).
4. according to claim 1 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The siphunculus (3)
Internal diameter be less than sewage conduct (2) radius, the diameter less than siphunculus (3) of the turbulated tube (4).
5. according to claim 4 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The port (41)
For inverted V-shape notch, generation piece (42) has been erected in the center of each port (41), the diameter that piece (42) occurs with
The internal diameter of turbulated tube (4) is identical, and the center that piece (42) occurs offers compensation hole (421).
6. according to claim 5 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The compensation hole
(421) 1/3rd of a diameter of generation piece (42) diameter arrive half.
7. according to claim 5 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：Every siphunculus (3)
A turbulated tube (4) is all connected with, the other end of the turbulated tube (4) is closed so that piece (42) occurs.
8. according to claim 1 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The shut-off valve
(6) it is electric check valve.
9. according to claim 1 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The hydraulic pressure sensing
Device (5) includes conduit (52), the floating ball (51) in conduit (52) and the pull rod (53) for being articulated with floating ball (51) bottom, its
Described in conduit (52) be located at siphunculus (3) the mouth of pipe top；The shut-off valve (6) is connected to the interior of siphunculus (3) including upset
The partition plate (61) of wall；The other end of the pull rod (53) is articulated with partition plate (61), is provided with the inner wall of the siphunculus (3) and is in
It is distributed up and down and is located at the stop part (62) of partition plate (61) center of rotation both sides respectively, wherein, close to partition plate (61) and pull rod
(53) stop part (62) of hinge joint side is located at the lower section of partition plate (61).
10. according to claim 9 be based on the pressure sensing municipal drainage system of rainwater, it is characterized in that：The partition plate
(61) side mutually abutted with stop part (62) is respectively arranged with two magnetic poles to attract each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711264278.XA CN108005208A (en) | 2017-12-05 | 2017-12-05 | Based on the pressure sensing municipal drainage system of rainwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711264278.XA CN108005208A (en) | 2017-12-05 | 2017-12-05 | Based on the pressure sensing municipal drainage system of rainwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005208A true CN108005208A (en) | 2018-05-08 |
Family
ID=62056527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711264278.XA Pending CN108005208A (en) | 2017-12-05 | 2017-12-05 | Based on the pressure sensing municipal drainage system of rainwater |
Country Status (1)
| Country | Link |
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| CN (1) | CN108005208A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610596A (en) * | 2018-11-19 | 2019-04-12 | 温州丰成建设有限公司 | Based on the pressure sensing municipal pipeline of rainwater |
| CN109797628A (en) * | 2019-01-23 | 2019-05-24 | 温州谦全建设有限公司 | A kind of road drainage system |
| CN110206116A (en) * | 2019-06-06 | 2019-09-06 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of urban flood defence early warning assisted drainage system |
| CN110616790A (en) * | 2019-09-02 | 2019-12-27 | 皖建生态环境建设有限公司 | Sponge type inlet for stom water construction structure |
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| CN205134485U (en) * | 2015-11-30 | 2016-04-06 | 袁媛 | City rainwater sewage drainage system |
| CN205604419U (en) * | 2016-05-13 | 2016-09-28 | 江苏工程职业技术学院 | Deodorant type ground drain structure |
| CN206308771U (en) * | 2016-12-12 | 2017-07-07 | 深圳市海腾建设工程有限公司 | The complementary sewerage system of bilateral |
| CN206308773U (en) * | 2016-12-12 | 2017-07-07 | 深圳市海腾建设工程有限公司 | From dredging drainpipe road |
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2017
- 2017-12-05 CN CN201711264278.XA patent/CN108005208A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205134485U (en) * | 2015-11-30 | 2016-04-06 | 袁媛 | City rainwater sewage drainage system |
| CN205604419U (en) * | 2016-05-13 | 2016-09-28 | 江苏工程职业技术学院 | Deodorant type ground drain structure |
| CN206308771U (en) * | 2016-12-12 | 2017-07-07 | 深圳市海腾建设工程有限公司 | The complementary sewerage system of bilateral |
| CN206308773U (en) * | 2016-12-12 | 2017-07-07 | 深圳市海腾建设工程有限公司 | From dredging drainpipe road |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610596A (en) * | 2018-11-19 | 2019-04-12 | 温州丰成建设有限公司 | Based on the pressure sensing municipal pipeline of rainwater |
| CN109610596B (en) * | 2018-11-19 | 2021-02-09 | 温州丰成建设有限公司 | Municipal pipeline based on rainwater pressure sensing |
| CN109797628A (en) * | 2019-01-23 | 2019-05-24 | 温州谦全建设有限公司 | A kind of road drainage system |
| CN110206116A (en) * | 2019-06-06 | 2019-09-06 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of urban flood defence early warning assisted drainage system |
| CN110206116B (en) * | 2019-06-06 | 2020-09-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Auxiliary drainage system for urban flood control early warning |
| CN110616790A (en) * | 2019-09-02 | 2019-12-27 | 皖建生态环境建设有限公司 | Sponge type inlet for stom water construction structure |
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Application publication date: 20180508 |