CN104532809A - Trash blocking and cleaning rack device - Google Patents
Trash blocking and cleaning rack device Download PDFInfo
- Publication number
- CN104532809A CN104532809A CN201410556076.2A CN201410556076A CN104532809A CN 104532809 A CN104532809 A CN 104532809A CN 201410556076 A CN201410556076 A CN 201410556076A CN 104532809 A CN104532809 A CN 104532809A
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- CN
- China
- Prior art keywords
- trashrack
- dirt
- rack
- frame
- trash blocking
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 239000010813 municipal solid waste Substances 0.000 title abstract description 13
- 230000000903 blocking effect Effects 0.000 title abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract 1
- 238000011109 contamination Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 241000216843 Ursus arctos horribilis Species 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a trash blocking and cleaning rack device and belongs to the technical field of aquatic environment. The trash blocking and cleaning rack device comprises a frame lower edge, frame side edges, a frame upper edge, trash blocking rack bars, and rolling bearings, wherein the two ends of the frame upper edge are fixed on the inner rings of the rolling bearings, the outer rings of the rolling bearings are fixed on a bracket, the frame lower edge, the two frame side edges and the frame upper edge are fixedly connected to form a frame structure, and the trash blocking rack bars are arranged in the middle of the frame structure. The trash blocking and cleaning rack device also comprises a pressure sensor, a rotation driving mechanism, a controller and a discharge groove, wherein the pressure sensor detects the value of the push force of water stream on the trash blocking rack bars and transmits the detected push force signal to the controller, and the discharge groove is arranged on the back of the trash blocking rack bars and fixedly connected with a fixation rack. The each trash blocking rack bar main body comprises an upper-segment plane rack body and a lower-segment plane rack body, the included angle between the lower-segment rack body and the horizontal line is 15-30 degrees. The automatic trash cleaning function of suspended substances on river surface is achieved, and the technical problem of the prior art that the efficiency of cleaning the trashes on the trash blocking racks by manual work is low is solved.
Description
Technical field
The present invention relates to a kind of dirt-blocking dirt-cleaning grid device, belong to water environment technical field.
Background technology
Trashrack is made up of frame, diaphragm and grizzly bar, is bearing on concrete pier wall, generally manufactures with steel.Interval of grid strip is depending on dirt size, how many and utilization requirement.The interval of grid strip in power station depends on hydraulic turbine model and size, is as the criterion to ensure can not be stuck in water turbine overflowing component by the dirt of trashrack.Sluicing tunnel and spilled water hole generally do not establish trashrack, and as footpath, hole or aperture are little, and dead-wood is more when needing to arrange, and interval of grid strip should strengthen.
Trashrack load, except deadweight, mainly after dirt blocking, due to the water ballast(ing) that water-head is formed before and after grid, generally considers by 2 ~ 4m head.The grid face size of trashrack was decided by grid current amount and allowed grid current speed.For reducing head loss and being convenient to remove contamination, General Requirements is crossed grid current speed and is not more than about 1.0m/s.Trashrack can be made and fixing maybe can to lift by crane.
Trashrack can be arranged to linear or in the plane in the fold-line-shaped of semicircle, facade can be upright or tilts, according to water-borne dirt character, how many, use and to require and the mode of removing contamination determines.The water inlet of the power station at dam toe that head is higher is conventional upright semicircle; The multiplex linear of intake gate, hydraulic tunnel, aqueduct.
The trashrack height of deep type water inlet is relevant with mode of removing contamination with reservoir level.For what do not need often to remove contamination, its crest level can a little more than flood control; Need often to remove contamination, then should higher than the peak level needing remove contamination.Highly larger trashrack, can make a few joint, and the size often saved can be determined according to crane capacity.
At present, trashrack is mainly used in tackling the pollutant that power station and pumping station etc. send drainage works water inlet, as: branch, household garbage, pasture and water etc., prevent floating thing and creep material from entering pumping plant, guarantee the safe operation of pumping plant, reach better economic benefit, domestic many enterprises, because causing termination of pumping without trashrack or because trashrack structure design is not suitable for environment, damage pump configuration, or cause pump to corrode because dirt blocks, unit vibration, very harmful.
Domestic power plant unit is increasing, unit water requirement also increases more, and intake design increases more, and its supporting trashrack hierarchy structure requires also to increase, traditional trashrack is heavier and girder easily produces distortion more has victor to rupture, and there is very large potential safety hazard.User has strong complaints.So the trashrack of development of new formula, equipment performance is stablized, and meets the active demand in market.
The traditional trashrack used in China river course, reservoir, channel, is mostly fixed frame grid structure, is made up of frame, diaphragm and grizzly bar, can tackle the solid suspension in river course.
The drawback of tradition trashrack is that suspension removes problem, and traditional trashrack is fixed on both sides, riverbank usually, and during operation, suspended contaminant is easily suspended on above trashrack, is difficult to cleaning in water.In addition, utilize electric device to carry out the trashrack of Automatic clearance suspension in addition, suspension can be utilized the similar devices such as conveyer belt be sent to dustbin, the suspension solving traditional trashrack removes problem, but electronic trashrack uses the energy, installation and maintenance difficulty is large, and cost is high.Therefore, research and develop and a kind ofly not only can tackle suspended contaminant but also be convenient to the dirt-blocking dirt-cleaning grid cleared up, its cost is low, and does not need the device of additional energy source to be problem demanding prompt solution.
Application number is: the application for a patent for invention of 201210147035.9 discloses a kind of movable trash rack, make the fence that arranges in river course with block dirt or flood passage need carry out switch, effectively can block dirt, not affect again navigation and flood passage.But the trashrack of said structure needs manually to open or close trashrack, and it is more to there is structure member, the defect that volume is larger.
Application number is: the patent application of 201210584851.6, it discloses the cable-styled trashrack of a kind of automatic pollutant removal, it is characterized in that many single Suo Binglie, be combined into cable-styled trashrack, be arranged on power drum by its upper end, lower end makes cable-styled trashrack meet dirty face by reverse wheel to move upward. and centre has guide-localization to take turns and multiple locating wheel blocks dirty about Suo Jinhang locate cable-styled.Simultaneously equip decontamination clip blocking on dirty rope, block in dirty rope rotation process and automatically clear up by decontamination clip the dirt sticked on trashrack timely.But, the complex structure of the trashrack of this kind of structure, and or need to block under driving wheel drives dirty rope meet dirty towards on run, make dirt depart from the water surface, intelligence degree is not high.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, provide a kind of and tackle suspension and the trashrack of intelligence removing dirt, this trashrack is without the need to extra electric power, the device being convenient to pollutant removing.
Concrete technical scheme of the present invention is:
A kind of dirt-blocking dirt-cleaning grid device, comprise framework below, frame sides, framework top, trashrack bar, rolling bearing, two ends, described framework top are fixed on rolling bearing inner ring, housing washer is fixed on support, framework below, two frame sides and framework top be composed of a fixed connection frame construction, is provided with trashrack bar in the middle of frame construction; Also comprise pressure sensor, rotary drive mechanism, controller and blowpit, the thrust size that described pressure sensor is formed trashrack bar for detecting current, and the thrust signal of detection is transferred to described controller, controller and described rotary drive mechanism control connection; Two ends, described framework top are stretched out the inner ring of described bearing and are connected with the axis of rotation of described rotary drive mechanism, and described blowpit is arranged on the back side of described trashrack bar, is fixedly connected on support by fixed mount; It is characterized in that: described trashrack bar body comprises upper and lower two sections of planar gate bodies, and hypomere grid body and horizontal angle are 15o ~ 30o.
The reductor that described rotary drive mechanism comprises electric rotating machine, is connected with electric rotating machine output shaft, the output shaft of reductor is connected with the two ends of described framework top.
Described framework below, frame sides, framework top be pipe, and framework top external diameter is less than the internal diameter of rolling bearing inner ring.
Described trashrack body is provided with and prevents suspension anti-skid structure along the landing of trashrack bar under self gravitation effect.
Described anti-skid structure be fixed on framework below on rake teeth.
Compared with prior art, its beneficial effect is in the present invention:
The first, the present invention relies on flow dynamic to be transferred on grizzly bar by suspended contaminant, without the need to other power, overcomes traditional trashrack pollutant and stagnates in drawback on trashrack, easy for installation.
The second, the present invention tackles removing suspension, overcomes the drawback that traditional trashrack pollutant stagnates in not easy-clear on trashrack.
Three, Fencing system is provided with the sensor of induction drag force size automatically, when the suspension on current comparatively urgency or fence is more, the pressure that trashrack bar is subject to will increase, power is passed to controller by sensor at any time, controller controls electric rotating machine again and rotates, and trashrack bar is dug immediately, is slipped in blowpit by the effect of suspension self gravitation, achieve the Automated condtrol not needing manpower, significantly reduce the input of manpower.
Accompanying drawing explanation
Fig. 1 is overall structure lateral view of the present invention;
Fig. 2 is the structural representation of frame construction;
In figure: 1, frame construction; 2, support; 3, blowpit; 4, rake teeth; 5, rolling bearing; 11, framework is following; 12, frame sides; 13, framework top; 14, trashrack bar.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Embodiment one
As shown in Figures 1 and 2, a kind of dirt-blocking dirt-cleaning grid device, comprise that framework is following 11, inner ring that frame sides 12, framework top 13, trashrack bar 14, rolling bearing 5, two ends, described framework top 13 are fixed on rolling bearing 5, rolling bearing 5 outer ring is fixed on support 2, following 11, two frame sides 12 of framework and framework top 13 are composed of a fixed connection frame construction 1, are provided with trashrack bar 14 in the middle of frame construction 1; Also comprise pressure sensor, rotary drive mechanism and controller, the thrust size that described pressure sensor is formed trashrack bar 14 for detecting current, and the thrust signal of detection is transferred to described controller, controller and described rotary drive mechanism control connection, described blowpit 3 is arranged on the back side of described trashrack bar 14, be fixedly connected on support 2 by fixed mount, described trashrack bar 14 body comprises upper and lower two sections of planar gate bodies, and hypomere grid body and horizontal angle are 15o ~ 30o.
Two ends, described framework top 13 are stretched out the inner ring of described rolling bearing 5 and are connected with the axis of rotation of described rotary drive mechanism.
The reductor that described rotary drive mechanism comprises electric rotating machine, is connected with electric rotating machine output shaft, the output shaft of reductor is connected with the two ends of described framework top 13.
Described framework is following 11, frame sides 12, framework top 13 are pipe, and framework top 13 external diameter is less than the internal diameter of rolling bearing 5 inner ring.
Embodiment two
As another embodiment of the present invention, a kind of dirt-blocking dirt-cleaning grid device, comprise that framework is following 11, inner ring that frame sides 12, framework top 13, trashrack bar 14, rolling bearing 5, two ends, described framework top 13 are fixed on rolling bearing 5, rolling bearing 5 outer ring is fixed on support 2, following 11, two frame sides 12 of framework and framework top 13 are composed of a fixed connection frame construction 1, are provided with trashrack bar 14 in the middle of frame construction 1; Also comprise pressure sensor, rotary drive mechanism and controller, the thrust size that described pressure sensor is formed trashrack bar 14 for detecting current, and the thrust signal of detection is transferred to described controller, controller and described rotary drive mechanism control connection, described blowpit 3 is arranged on the back side of described trashrack bar 14, is fixedly connected on support 2 by fixed mount.Described trashrack bar 14 body comprises upper and lower two sections of planar gate bodies, and hypomere grid body and horizontal angle are 15o ~ 30o.Itself and first embodiment difference place are: described framework following 11 is provided with and prevents suspension anti-skid structure along trashrack bar 14 landing under self gravitation effect.
Embodiment three
As the 3rd embodiment of the present invention, a kind of dirt-blocking dirt-cleaning grid device, comprise that framework is following 11, inner ring that frame sides 12, framework top 13, trashrack bar 14, rolling bearing 5, two ends, described framework top 13 are fixed on rolling bearing 5, rolling bearing 5 outer ring is fixed on support 2, following 11, two frame sides 12 of framework and framework top 13 are composed of a fixed connection frame construction 1, are provided with trashrack bar 14 in the middle of frame construction 1; Also comprise pressure sensor, rotary drive mechanism and controller, the thrust size that described pressure sensor is formed trashrack bar 14 for detecting current, and the thrust signal of detection is transferred to described controller, controller and described rotary drive mechanism control connection, described blowpit 3 is arranged on the back side of described trashrack bar 14, is fixedly connected on support 2 by fixed mount.Described trashrack bar 14 body comprises upper and lower two sections of planar gate bodies, and hypomere grid body and horizontal angle are 15o ~ 30o.Itself and first embodiment difference place are: described framework following 11 is provided with and prevents suspension anti-skid structure along trashrack bar 14 landing under self gravitation effect, and further, described anti-skid structure is be fixed on the rake teeth 4 on framework following 11.
The working method of the third embodiment above-mentioned: framework following 11 is placed on the bottom, and support 2 is fixed on current two sides, in current, suspension is tackled by the trashrack bar 14 gathered.Fencing system is provided with the sensor of induction drag force size automatically, when the suspension on current comparatively urgency or trashrack bar 14 is more, the pressure that trashrack bar 14 is subject to will increase, power is passed to controller by sensor at any time, controller controls electric rotating machine again and rotates, trashrack bar 14 is dug immediately, and rake teeth 4 prevents suspension landing in water; When trashrack bar 14 turns to aerial eminence, suspension from trashrack bar 14 one end landing, places blowpit 3 in advance under self gravitation effect below suspension landing, achieves suspension in interception water, and removes the object of the suspension on trashrack bar 14.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on manual, must determine its technical scope according to right.
Claims (5)
1. a dirt-blocking dirt-cleaning grid device, comprise framework below, frame sides, framework top, trashrack bar, rolling bearing, two ends, described framework top are fixed on rolling bearing inner ring, housing washer is fixed on support, framework below, two frame sides and framework top be composed of a fixed connection frame construction, is provided with trashrack bar in the middle of frame construction; It is characterized in that: also comprise pressure sensor, rotary drive mechanism, controller and blowpit, the thrust size that described pressure sensor is formed trashrack bar for detecting current, and the thrust signal of detection is transferred to described controller, controller and described rotary drive mechanism control connection; Two ends, described framework top are stretched out the inner ring of described bearing and are connected with the axis of rotation of described rotary drive mechanism, and described blowpit is arranged on the back side of described trashrack bar, is fixedly connected on support by fixed mount; Described trashrack bar body comprises upper and lower two sections of planar gate bodies, and hypomere grid body and horizontal angle are 15o ~ 30o.
2. a kind of dirt-blocking dirt-cleaning grid device according to claim 1, is characterized in that, the reductor that described rotary drive mechanism comprises electric rotating machine, is connected with electric rotating machine output shaft, and the output shaft of reductor is connected with the two ends of described framework top.
3. a kind of dirt-blocking dirt-cleaning grid device according to claim 1, is characterized in that: described framework below (3), frame sides (4), framework top (5) is pipe, and framework top (5) external diameter is less than the internal diameter of rolling bearing (8) inner ring.
4. a kind of dirt-blocking dirt-cleaning grid device according to claim 1, is characterized in that: described trashrack body is provided with and prevents suspension anti-skid structure along the landing of trashrack bar under self gravitation effect.
5. a kind of dirt-blocking dirt-cleaning grid device according to claim 4, is characterized in that: described anti-skid structure be fixed on framework below on rake teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556076.2A CN104532809A (en) | 2014-10-20 | 2014-10-20 | Trash blocking and cleaning rack device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556076.2A CN104532809A (en) | 2014-10-20 | 2014-10-20 | Trash blocking and cleaning rack device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104532809A true CN104532809A (en) | 2015-04-22 |
Family
ID=52848417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410556076.2A Withdrawn CN104532809A (en) | 2014-10-20 | 2014-10-20 | Trash blocking and cleaning rack device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104532809A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354923A (en) * | 2017-08-28 | 2017-11-17 | 北京工业大学 | A kind of continuous type river course contaminants-collecting apparatus |
| CN107989004A (en) * | 2017-12-10 | 2018-05-04 | 泰兴市洁源环保工程有限公司 | A kind of new hydraulic engineering gate |
| CN108677900A (en) * | 2018-05-18 | 2018-10-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Trash blocking and cleaning device capable of automatically lifting along with water level |
| CN109507080A (en) * | 2018-11-14 | 2019-03-22 | 扬州大学 | Pumping plant trash rack dirt intercepts, crosses grid experimental rig and test analysis method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10230672A1 (en) * | 2002-07-04 | 2004-01-29 | August Frebe Gmbh | Waterway trash rack system exposes rack trash to ultrasound in cleaning bath for easier dewatering and organics removal. |
| CN2911008Y (en) * | 2006-06-20 | 2007-06-13 | 王金华 | Self-cleaning trash rack |
| CN202809575U (en) * | 2012-07-05 | 2013-03-20 | 诸暨市同城机械有限公司 | Automatic trash-removal trash rack for river channel |
| CN203144995U (en) * | 2013-05-31 | 2013-08-21 | 尹燕亮 | Riverway trash rack |
| CN103290820A (en) * | 2013-06-07 | 2013-09-11 | 中国水电顾问集团贵阳勘测设计研究院 | Frame structure of long-span trash rack |
| CN203821340U (en) * | 2014-03-24 | 2014-09-10 | 河海大学 | Overturning contaminant blocking and removing grid |
-
2014
- 2014-10-20 CN CN201410556076.2A patent/CN104532809A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10230672A1 (en) * | 2002-07-04 | 2004-01-29 | August Frebe Gmbh | Waterway trash rack system exposes rack trash to ultrasound in cleaning bath for easier dewatering and organics removal. |
| CN2911008Y (en) * | 2006-06-20 | 2007-06-13 | 王金华 | Self-cleaning trash rack |
| CN202809575U (en) * | 2012-07-05 | 2013-03-20 | 诸暨市同城机械有限公司 | Automatic trash-removal trash rack for river channel |
| CN203144995U (en) * | 2013-05-31 | 2013-08-21 | 尹燕亮 | Riverway trash rack |
| CN103290820A (en) * | 2013-06-07 | 2013-09-11 | 中国水电顾问集团贵阳勘测设计研究院 | Frame structure of long-span trash rack |
| CN203821340U (en) * | 2014-03-24 | 2014-09-10 | 河海大学 | Overturning contaminant blocking and removing grid |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354923A (en) * | 2017-08-28 | 2017-11-17 | 北京工业大学 | A kind of continuous type river course contaminants-collecting apparatus |
| CN107989004A (en) * | 2017-12-10 | 2018-05-04 | 泰兴市洁源环保工程有限公司 | A kind of new hydraulic engineering gate |
| CN108677900A (en) * | 2018-05-18 | 2018-10-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Trash blocking and cleaning device capable of automatically lifting along with water level |
| CN108677900B (en) * | 2018-05-18 | 2024-02-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Dirt blocking and cleaning device capable of automatically lifting along with water level |
| CN109507080A (en) * | 2018-11-14 | 2019-03-22 | 扬州大学 | Pumping plant trash rack dirt intercepts, crosses grid experimental rig and test analysis method |
| CN109507080B (en) * | 2018-11-14 | 2023-12-01 | 扬州大学 | Test device and test analysis method for waste interception and passing through waste racks in pumping stations |
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| PB01 | Publication | ||
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Application publication date: 20150422 |