CN107327014A - A kind of anti-block apparatus of the pre-buried pipeline of water conservancy - Google Patents
A kind of anti-block apparatus of the pre-buried pipeline of water conservancy Download PDFInfo
- Publication number
- CN107327014A CN107327014A CN201710607296.7A CN201710607296A CN107327014A CN 107327014 A CN107327014 A CN 107327014A CN 201710607296 A CN201710607296 A CN 201710607296A CN 107327014 A CN107327014 A CN 107327014A
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- CN
- China
- Prior art keywords
- pipeline
- water conservancy
- fie screen
- coarse strainer
- pipeline body
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
- E03F9/002—Cleaning sewer pipes by mechanical means
- E03F9/005—Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
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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)
- Filtration Of Liquid (AREA)
Abstract
A kind of anti-block apparatus of the pre-buried pipeline of water conservancy, the pipeline body being connected including the pre-buried pipeline of delivery port and water conservancy, in pipeline body coarse strainer and fie screen are disposed with along its water inlet to delivery port direction, pipeline body circumferencial direction uniform intervals multiple crush is provided with wall in pipeline body of the fie screen away from coarse strainer side to cut into slices, the lower end of the coarse strainer and the lower end of fie screen are respectively protruding into the first desilting pipeline with the second desilting pipeline, and the discharge outlet of first blow-off line and the second blow-off line is respectively arranged with the first valve and the second valve.The present invention can effectively prevent the pre-buried line clogging of water conservancy, and when there is stopping state generation, cleaning is convenient and rapid, the need for meeting production and life.
Description
Technical field
The present invention relates to the pre-buried pipeline technical field of water conservancy, and in particular to a kind of anti-block apparatus of the pre-buried pipeline of water conservancy.
Background technology
China's gross amount of water resources enriches, and occupancy volume per person is low, and water resource is distributed uneven and distribution over time and space
It is incompatible with population, arable land layout.As the size of population ceaselessly increases, China's water resource is more and more nervous, at present, China
There are some areas and city water deficiency occur, therefore we need rationally efficiently to utilize water, and build hydraulic engineering
It is the important way and approach for solving water deficiency.Hydraulic engineering includes dredging waterway and flood control works, farmland water conservancy works, water
Power generation engineering, water supply and drainage system and maritime engineering etc., the hydraulic engineering of mentioned kind all be unable to do without water conservancy built-in pipe
Road.
The pre-buried pipeline of water conservancy is the device for being used to convey liquid for having pipeline body and valve etc. to connect into.Generally, liquid is passed through
Cross after supercharging, flowed at the high pressure of pipeline body at low pressure, pressure or the gravity conveying of liquid itself can also be used.In daily life
In production and life process, the pre-buried pipeline for transporting liquid is widely used in every field.
The normal work of the pre-buried pipeline of water conservancy is the key factor for ensureing Quality of Water Conservancy Projects, by the liquid that is transported
Inevitably containing debris such as silt and rubbish, therefore cause the pre-buried pipeline of water conservancy clogging easily occur, be limited to existing
Limitation in technology in water conservancy built-in pipe road structure and design, the existing pre-buried pipeline of water conservancy can not very efficiently, fast
Ground is filtered and removed to debris, and filter effect is also very undesirable.Water is not only influenceed after the pre-buried line clogging of water conservancy
The speed and flow of stream, can also damage water conservancy pre-buried pipeline when serious, so as to influence the normal of the pre-buried pipeline of water conservancy to use.
At present, sewer pipe is easily blocked by house refuse, and rainwater dredging pipeline is easily deposited and is hardened in pipeline bottom
Silt block.When line clogging, it is necessary to by being manually entered progress dredging cleaning in pipeline, clear up difficult and efficiency very
It is low, all made troubles to production and life.
The application documents of existing Application No. " 201610897454.2 " disclose a kind of anti-blocking dress of the pre-buried pipeline of water conservancy
Put, the anti-block apparatus internal structure is complicated and takes big quantity space, so as to reduce water velocity, and causes water conservancy built-in pipe
Road drainage rates reduction.The application documents of Application No. " 201620361615.1 " also disclose that a kind of the anti-of the pre-buried pipeline of water conservancy
The hardening thing of deposition is cleared up in block apparatus, the anti-block apparatus with stainless steel ball, stainless steel ball surface is smooth, cleaning effect and speed
Rate is not ideal enough.Therefore, the need for the anti-block apparatus of the pre-buried pipeline of above two water conservancy can not meet existing production and living.
The content of the invention
Easily blocked to solve the pre-buried pipeline of water conservancy, block after be difficult to the technical problem cleared up, the purpose of the present invention is
A kind of anti-block apparatus of the pre-buried pipeline of water conservancy is provided, the pre-buried line clogging of water conservancy is effectively prevented, and when there is stopping state generation,
Cleaning is convenient and rapid, the need for meeting production and life.
The technical solution adopted in the present invention is：A kind of anti-block apparatus of the pre-buried pipeline of water conservancy, including delivery port and water conservancy
Coarse strainer and fie screen are disposed with along its water inlet to delivery port direction in the pipeline body of pre-buried pipeline connection, pipeline body,
Pipeline body circumferencial direction uniform intervals multiple crushing are provided with wall in pipeline body of the fie screen away from coarse strainer side to cut
Piece, the crushing section is obliquely installed and its width is gradually reduced along coarse strainer to fie screen direction, crushes section close to fine filtering
The thickness of net one end is gradually reduced by fie screen to coarse strainer direction, the end face of the end for along along pipeline body wall into pipeline body
The arc-shaped curved surface that axis direction is tilted upward, crushes end of the section away from fie screen one end and is seamlessly transitted with wall in pipeline body,
The coarse strainer and fie screen are respectively arranged below the first blow-off line and the second blow-off line connected with pipeline body phase, institute
State the lower end of coarse strainer and the lower end of fie screen be respectively protruding into the first desilting pipeline and the second desilting pipeline in, described first
The discharge outlet of blow-off line and the second blow-off line is respectively arranged with the first valve and the second valve.
Further, dredging mechanism is provided with the pipeline body, dredging mechanism includes pull bar and slided to be located in
Dredging bar on coarse strainer and fie screen, one end of dredging bar is stretched in the pre-buried pipeline of water conservancy, and the other end is entered by pipeline body
The mouth of a river is stretched out simultaneously to be fixedly connected with pull bar, and the dredging bar is located at the bottom of the body of rod of one end in the pre-buried pipeline of water conservancy along its axle
To be arranged at intervals with it is multiple scrape tooth, scrape tooth and scrape lever by three and constitute, three one scraped in lever scrape lever and dredging
Bar bottom is vertically fixedly connected, and two other is scraped lever and is symmetricly set in positioned at the middle both sides for scraping lever, described to scrape lever
Including the tri-prismoid, cone and hemisphere being from top to bottom sequentially connected, a rib and current side in the tri-prismoid
To being oppositely arranged.
Further, the first through hole and second that lever matches is respectively arranged with and scraped on the coarse strainer and fie screen
Through hole, the fie screen and the scraping to be provided between tooth and be set in dredging bar limit baffle ring recently apart from fie screen position.
Further, certain distance is separated between at the top of the coarse strainer between pipeline body top.
Further, the crushing section has four.
Further, the mesh diameter of the coarse strainer is more than the mesh diameter of fie screen.
Further, water inlet of the coarse strainer along pipeline body is set diagonally downward to delivery port direction, the fine filtering
Water inlet of the net along pipeline body is set diagonally downward to delivery port direction.
Compared with prior art, the invention has the advantages that：
First, the anti-block apparatus of the pre-buried pipeline of a kind of water conservancy of the present invention, by setting coarse strainer and fie screen, effectively
The larger rubbish filtering of volume in the liquid that the pre-buried pipeline of water conservancy is conveyed comes out, and the rubbish of filtering respectively falls in first
Discharged in blow-off line and the second blow-off line and periodically, so as to prevent bulky refuse from blocking the pre-buried pipeline of water conservancy；
2nd, the crushing section in the present invention can will the cutting such as the pockets of clod of aggregation, soil block it is broken, make the mud in transport liquid
Block and soil block volume diminish, weight, soil block and clod is flowed away with current, effectively prevent soil block and clod precipitate and
Hardened after precipitation in duct bottom, further prevent the pre-buried line clogging of water conservancy；
3rd, when there is hardening deposit on the tube wall of the pre-buried pipeline of water conservancy, by push-and-pull dredging mechanism and current are coordinated
Hardening deposit can quickly and efficiently be cleared up by washing away, and greatly save manpower, scraped tooth and scraped lever by three and constitute, and scraped tooth and fitted
Share in the curved pre-buried pipeline bottom of water conservancy, scrape lever positioned at middle will to be effectively deposited on the pre-buried pipeline of water conservancy minimum
The deposit of point is scraped, and the lever of scraping positioned at both sides is used for scraping the deposit for being deposited in minimum point both sides, and it is heavy to be scraped in guarantee
On the basis of product thing is comprehensive, effectively prevent that scraping tooth scratches duct wall, further ensures the service life of the pre-buried pipeline of water conservancy.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the side structure schematic view for crushing section；
Fig. 3 is the structural representation for scraping tooth；
Marked in figure：1st, pipeline body, 101, delivery port, 102, water inlet, 2, coarse strainer, 3, fie screen, 4, crush section,
5th, the first blow-off line, the 6, second blow-off line, 7, dredging mechanism, 701, dredging bar, 702, pull bar, 703, scrape tooth,
7031st, lever is scraped, 70311, tri-prismoid, 70312, cone, 70313, hemisphere, 7032, pull bar, 704, limiting block
Ring, the 8, first valve, the 9, second valve.
Embodiment
The present invention is elaborated with specific embodiment below in conjunction with the accompanying drawings.
As illustrated, a kind of anti-block apparatus of the pre-buried pipeline of water conservancy, including delivery port 101 is connected with the pre-buried pipeline of water conservancy
In pipeline body 1, pipeline body 1 coarse strainer 2 and fie screen 3 are disposed with along its water inlet 102 to the direction of delivery port 101 so that
Rubbish filtering obtains more abundant, and the mesh diameter of the coarse strainer 2 is more than the mesh diameter of fie screen 3, and coarse strainer 2 reduces water
Flow the impact to fie screen 3 so that fie screen 3 is hardly damaged.
Set on pipeline body 1 inwall of the fie screen 3 away from the side of coarse strainer 2 along the circumferencial direction uniform intervals of pipeline body 1
Have four crush section 4, it is described crush section 4 close to the one end of fie screen 3 thickness by fie screen 3 to the direction of coarse strainer 2 gradually
Reduce, the end face of the end is the arc-shaped curved surface tilted upward along the inwall of pipeline body 1 to the axis direction of pipeline body 1, ensureing
Crush makes to be difficult stuck foreign matter in crushing section 4 while dynamics is cut in section 4.The crushing section 4 arrives fine filtering along coarse strainer 2
The direction of net 3 is obliquely installed, and the width for crushing section 4 is gradually reduced along coarse strainer 2 to the direction of fie screen 3, crushes section 4 away from thin
The end of the one end of filter screen 3 and the interior walls be smooth transition of pipeline body 1 so that the current formation eddy flow after crushing section 4, are enhanced
The conveying capacity of pipeline body 1, improves drainage speed, from without influenceing the drainage rates of the pre-buried pipeline of current.
The coarse strainer 2 and fie screen 3 are respectively arranged below the first blow-off line 5 being connected with pipeline body 1 and
Two blow-off lines 6, the lower end of the coarse strainer 2 and the lower end of fie screen 3 are respectively protruding into the first blow-off line 5 and second row
In dirty pipeline 6, water inlet 102 of the coarse strainer 2 along pipeline body 1 is set and coarse strainer 2 diagonally downward to the direction of delivery port 101
Bottom is connected with the inwall of the first blow-off line 5, and water inlet 102 of the fie screen 3 along pipeline body 1 inclines to the direction of delivery port 101
Set obliquely and the bottom of fie screen 3 is fixedly connected with the inwall of the second blow-off line 6, so that entering one enhances filter effect.Institute
The discharge outlet for stating the first blow-off line 5 and the second blow-off line 6 is respectively arranged with the first valve 8 and the second valve 9, when first
It is have collected in the blow-off line 6 of blow-off line 5 and second after a certain amount of rubbish, open the first valve 8 and the second valve 9 arranges rubbish
Go out, it is convenient and swift, so that the present invention normally can work in order.
Dredging mechanism 7 is provided with the pipeline body 1, dredging mechanism 7 includes pull bar 702 and slided to be located in coarse filtration
Dredging bar 701 on net 2 and fie screen 3, one end of dredging bar 701 is stretched in the pre-buried pipeline of water conservancy, and the other end is by pipeline body 1
Water inlet 102 stretch out and be fixedly connected with pull bar 702, it is described dredging bar 701 be located at the pre-buried pipeline of water conservancy in one end bar
The bottom of body along its axially spaced-apart be provided with it is multiple scrape tooth 703, when the pre-buried duct bottom of water conservancy have hardening deposit when, pass through
Pull bar 702 described in push-and-pull, makes to scrape tooth 703 and is scraped off deposit is hardened, and hydrous water stream is washed away, and makes to scrape off
Hardening deposit be flushed away, effectively solve the blockage problem of the pre-buried pipeline of water conservancy, save artificial, it is time saving and energy saving, meet production
The need for life.
It is described scrape tooth 703 and scrape lever 7031 by three constitute, three one scraped in lever 7031 scrape lever 7031 with
Dredging bar 701 bottom is vertically fixedly connected, and two other is scraped lever 7031 and is symmetricly set in positioned at middle lever 7031 of scraping
Both sides, and scrape positioned at two of both sides lever 7031 in isosceles triangle setting, make to scrape tooth 702 scrape power it is strong while protect
Demonstrate,prove and scraped the intensity of the structure of tooth 702 in itself, extended the service life for scraping tooth 702.
It is described to scrape tri-prismoid 70311, cone 70312 and hemisphere that lever 7031 includes from top to bottom being sequentially connected
70313, a rib in the tri-prismoid 70311 is oppositely arranged with water (flow) direction, so that scraping the active force of lever 7031
Stronger, hardening deposit is easily scraped, and the surface of hemisphere 70313 is smooth, so as to prevent plowing from the pre-buried inner-walls of duct of water conservancy.
First through hole that lever 7031 matches is respectively arranged with and scraped on the coarse strainer 2 and fie screen 3 and second logical
Hole, scrape lever 7031 in first through hole and the second through hole can slidably, the fie screen 3 with apart from the position of fie screen 3 most
It is near scrape to be provided between tooth 703 be set in the dredging limit baffle ring 704 of bar 701, limit baffle ring 704 limits dredging bar 701
Movement, limit baffle ring 704 prevents that, in mobile dredging bar 701, the tooth 703 that scrapes on dredging bar 701 scrapes fie screen 3, has
Effect prevents fie screen 3 from damaging, and then extends the service life of the present invention.
Certain distance is separated between the top of coarse strainer 2 and the top of pipeline body 1 so that current pass through the spacer
From being rinsed to fie screen 3, effectively rinse out the impurity adhered on fie screen 3.
The present embodiment gives detailed embodiment and specific operating process premised on technical solution of the present invention,
But protection scope of the present invention is not limited to the above embodiments.
Claims (7)
1. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy, including the pipeline body that delivery port (101) is connected with the pre-buried pipeline of water conservancy
(1), it is characterised in that：In pipeline body (1) coarse strainer (2) is disposed with along its water inlet (102) to delivery port (101) direction
With fie screen (3), along pipeline body (1) circumferencial direction on pipeline body (1) inwall of fie screen (3) away from coarse strainer (2) side
Uniform intervals are provided with multiple crush and cut into slices (4), and the crushing section (4) is obliquely installed and its width arrives thin along coarse strainer (2)
Filter screen (3) direction is gradually reduced, and crushes section (4) close to the thickness of fie screen (3) one end by fie screen (3) to coarse strainer (2)
Direction is gradually reduced, and the end face of the end is the arc tilted upward along pipeline body (1) inwall to pipeline body (1) axis direction
Curved surface, crushes end of the section (4) away from fie screen (3) one end and pipeline body (1) interior walls be smooth transition, the coarse strainer (2)
The first blow-off line (5) and the second blow-off line (6) being connected with pipeline body (1) are respectively arranged below with fie screen (3),
The lower end of the coarse strainer (2) and the lower end of fie screen (3) are respectively protruding into the first blow-off line (5) and the second blow-off line
(6) in, the discharge outlet of first blow-off line (5) and the second blow-off line (6) is respectively arranged with the first valve (8) and the
Two valves (9).
2. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy as claimed in claim 1, it is characterised in that：In the pipeline body (1)
Dredging mechanism (7) is provided with, dredging mechanism (7) includes pull bar (702) and slided to be located in coarse strainer (2) and fie screen
(3) the dredging bar (701) on, one end of dredging bar (701) is stretched in the pre-buried pipeline of water conservancy, and the other end is by pipeline body (1)
Water inlet (102) stretches out and is fixedly connected with pull bar (702), and the dredging bar (701) is located at one end in the pre-buried pipeline of water conservancy
The body of rod bottom along its axially spaced-apart be provided with it is multiple scrape tooth (703), scrape tooth (703) and lever (7031) structure scraped by three
Scrape lever (7031) and dredging into, three one scraped in lever (7031) bar (701) bottom is vertical and be fixedly connected, two other
Scrape lever (7031) to be symmetricly set in positioned at the middle both sides for scraping lever (7031), the lever (7031) of scraping is included by up to
Under the tri-prismoid (70311), cone (70312) and the hemisphere (70313) that are sequentially connected, the tri-prismoid (70311)
In a rib be oppositely arranged with water (flow) direction.
3. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy as claimed in claim 2, it is characterised in that：The coarse strainer (2) and
Be respectively arranged with and scrape first through hole and the second through hole that lever (7031) matches on fie screen (3), the fie screen (3) with
It is provided with apart from fie screen (3) position scraping recently between tooth (703) and is set in dredging bar (701) limit baffle ring (704).
4. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy as claimed in claim 1, it is characterised in that：Coarse strainer (2) top
Certain distance is separated between at the top of portion and pipeline body (1).
5. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy as claimed in claim 1, it is characterised in that：It is described to crush section (4)
Have four.
6. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy as claimed in claim 1, it is characterised in that：The coarse strainer (2)
Mesh diameter is more than the mesh diameter of fie screen (3).
7. a kind of anti-block apparatus of the pre-buried pipeline of water conservancy as claimed in claim 1, it is characterised in that：Coarse strainer (2) edge
The water inlet (102) of pipeline body (1) is set diagonally downward to delivery port (101) direction, and the fie screen (3) is along pipeline body (1)
Water inlet (102) set diagonally downward to delivery port (101) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607296.7A CN107327014B (en) | 2017-07-24 | 2017-07-24 | A kind of anti-block apparatus of the pre-buried pipeline of water conservancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607296.7A CN107327014B (en) | 2017-07-24 | 2017-07-24 | A kind of anti-block apparatus of the pre-buried pipeline of water conservancy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327014A true CN107327014A (en) | 2017-11-07 |
| CN107327014B CN107327014B (en) | 2019-01-01 |
Family
ID=60199874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710607296.7A Active CN107327014B (en) | 2017-07-24 | 2017-07-24 | A kind of anti-block apparatus of the pre-buried pipeline of water conservancy |
Country Status (1)
| Country | Link |
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| CN (1) | CN107327014B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147556A (en) * | 2018-02-08 | 2018-06-12 | 苏中起 | A kind of frequency conversion resonance vibration water treatment system structure |
| CN109811877A (en) * | 2019-03-15 | 2019-05-28 | 李建岗 | A kind of water conservancy construction pipe-dredging guiding device |
| CN110270143A (en) * | 2019-06-25 | 2019-09-24 | 信元利 | A kind of dirty anti-blocking pre-buried pipeline of water conservancy of filter |
| CN111119041A (en) * | 2019-12-30 | 2020-05-08 | 安徽鑫盛市政工程有限公司 | Drainage system for highway bridge |
| CN111604144A (en) * | 2020-06-03 | 2020-09-01 | 赵军 | Water conservancy embedded pipeline prevents stifled device |
| CN111851693A (en) * | 2019-04-28 | 2020-10-30 | 江苏艾德卡建材科技有限公司 | Prevent stifled type municipal drainage pipe |
| CN112403188A (en) * | 2019-08-22 | 2021-02-26 | 安徽金叶碳素科技有限公司 | Multistage parallel activated carbon flue gas purification device |
| CN112796408A (en) * | 2020-12-30 | 2021-05-14 | 唐小于 | Anti-blocking device for pre-buried laying of hydraulic engineering pipeline |
| CN113863468A (en) * | 2021-10-12 | 2021-12-31 | 中国电建集团成都勘测设计研究院有限公司 | Self-cleaning pipeline for hydraulic engineering |
| CN114525840A (en) * | 2022-04-22 | 2022-05-24 | 江苏航运职业技术学院 | Intelligent operation optimization equipment and method for agricultural pump station |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147556A (en) * | 2018-02-08 | 2018-06-12 | 苏中起 | A kind of frequency conversion resonance vibration water treatment system structure |
| CN109811877A (en) * | 2019-03-15 | 2019-05-28 | 李建岗 | A kind of water conservancy construction pipe-dredging guiding device |
| CN109811877B (en) * | 2019-03-15 | 2020-07-17 | 李建岗 | Water conservancy construction pipeline mediation guiding device |
| CN111851693A (en) * | 2019-04-28 | 2020-10-30 | 江苏艾德卡建材科技有限公司 | Prevent stifled type municipal drainage pipe |
| CN110270143A (en) * | 2019-06-25 | 2019-09-24 | 信元利 | A kind of dirty anti-blocking pre-buried pipeline of water conservancy of filter |
| CN112403188A (en) * | 2019-08-22 | 2021-02-26 | 安徽金叶碳素科技有限公司 | Multistage parallel activated carbon flue gas purification device |
| CN111119041A (en) * | 2019-12-30 | 2020-05-08 | 安徽鑫盛市政工程有限公司 | Drainage system for highway bridge |
| CN111604144A (en) * | 2020-06-03 | 2020-09-01 | 赵军 | Water conservancy embedded pipeline prevents stifled device |
| CN112796408A (en) * | 2020-12-30 | 2021-05-14 | 唐小于 | Anti-blocking device for pre-buried laying of hydraulic engineering pipeline |
| CN113863468A (en) * | 2021-10-12 | 2021-12-31 | 中国电建集团成都勘测设计研究院有限公司 | Self-cleaning pipeline for hydraulic engineering |
| CN114525840A (en) * | 2022-04-22 | 2022-05-24 | 江苏航运职业技术学院 | Intelligent operation optimization equipment and method for agricultural pump station |
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| CN107327014B (en) | 2019-01-01 |
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