CN206143751U - Swing -arm type water top layer water conservancy suck -back removes algae deoiling device - Google Patents
Swing -arm type water top layer water conservancy suck -back removes algae deoiling device Download PDFInfo
- Publication number
- CN206143751U CN206143751U CN201621207778.0U CN201621207778U CN206143751U CN 206143751 U CN206143751 U CN 206143751U CN 201621207778 U CN201621207778 U CN 201621207778U CN 206143751 U CN206143751 U CN 206143751U
- Authority
- CN
- China
- Prior art keywords
- water
- arc
- suction nozzle
- top layer
- spiral arm
- 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- Withdrawn - After Issue
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The utility model discloses a swing -arm type water top layer water conservancy suck -back removes algae deoiling device. The device is including the arc suction head, flexible straw, the suction pump, electric -magnetic flow meter, the spiral arm, the hinge, water depth sensor, the lift carousel, the storage water tank, the hull, the arc suction head pass through suction ducts through the suction pump with adorn in the tank connection of hull, last butterfly valve and the electric -magnetic flow meter of being equipped with of suction ducts, the one end of spiral arm is passed through the spiral arm gallows and is linked to each other with the arc suction head, the spiral arm other end can be realized rotatoryly and then driven the rotation of arc suction head by rotary mechanism, still be connected with the lift carousel on the spiral arm, the lift carousel is used for adjusting the spiral arm and going up and down to inhale head position with the control arc and flood the depth of water in predetermineeing according to the depth of water of flooding of water depth sensor real -time supervision arc suction head. The utility model discloses concentrating on the characteristic on water top layer according to alga and greasy dirt, utilizing water depth sensor and lift carousel, accurate control arc suction head floods the depth of water, make pointed references and absorbs the alga and the greasy dirt on water top layer, and the water consumption is few, and is efficient.
Description
Technical field
The utility model is related to a kind of machinery except algae degreasing unit, specifically a kind of swing-arm type water body top layer waterpower suck-back
Except algae degreasing unit.
Background technology
Recent decades, due to body eutrophication, cause large area wawter bloom, and water ecological environment and drinking water source are made safely
Into significant threat；And the Algae toxins that algae produces affect human health.Algae during wawter bloom is mainly enriched in water body top layer,
Thickness is usually no more than 5cm.According to statistics, current China has reached the lake of eutrophication and coastal cities immediate offshore area exceedes
70%, the content of its area, intensity and Algae toxins is increasing substantially.In recent years, often there is waters oil leak event both at home and abroad
Generation, to water ecological environment, hydraulic structure and human health produce significant damage.The common feature of algae and water and greasy dirt
It is to be mainly distributed on water body top layer.At present, some are had both at home and abroad except the method for algae oil removing, mainly including physical method, chemistry
Method and biological method.
Physical method mainly fishes for the thread algae in water body except algae, and the method has instant effect, pollution less and can be long-term
The advantage for using, is relatively specific for that concentration of algae is higher, formed the waters of serious algal bloom；Physical method oil removing is mainly adopted
Asphalt felt or oil suction equipment, but generally draw not thorough enough.Chemical method is the physicochemical property according to algal bloom and greasy dirt, plus
Enter appropriate chemical agent；Chemical method instant effect, but can not regular, chronicity use, in order to avoid the accumulation of chemical substance is to water
Body causes secondary pollution.Biotechnology is by aquatic food chain, planting aquatic plants or to add appropriate fishes and shrimps seedling, progressively to build
Erect an artificial ecological system；Biological method there are certain requirements to water body environment, and the energy of slowly effect, removal algae and greasy dirt
Power is limited.
At present, remove algae and water and still mainly adopt physical method.Patent (U of CN 201834183) discloses a kind of machine
Tool algae-removing device, the suction nozzle that it is adopted is less, the distance between easily blocking, and uncontrollable suction nozzle and the water surface, except algae effect
Typically.Patent (U of CN 203996816) discloses a kind of mechanical algae removal device, and its equipment for collecting algae is water inlet pipe, and is entered
Water pipe is single, and import is less, easily blocking, also the distance between uncontrollable water inlet pipe and the water surface, overall to remove algae efficiency not
It is high.Patent (A of CN 103552665) discloses a kind of water oil stain cleaning ship, and using oil suction roller greasy dirt, patent (CN are drawn
103938600 B) disclose a kind of water oil stain and remove retracting device, the equal sphere of action of two kinds of devices is little, and oil removal is inadequate
Thoroughly, it is and less efficient, compared with suitable for the big regional area of greasy dirt concentration height, thickness.
At present, using mechanical system except the patent of algae oil removing, the suction nozzle for being adopted or water inlet pipe design relatively extensive, no
Meet the hydraulic characteristic of fluid, energy loss is larger；The suction nozzle major part for being adopted cannot rotate, except algae oil removing scope has
Limit；And uncontrollable suction nozzle and the distance of the water surface, a large amount of water have been aspirated while except algae oil removing, except algae oil removal efficiency relatively
It is low.
Utility model content
The utility model is for the defect for overcoming prior art to exist, there is provided a kind of for water body top layer algae and greasy dirt
Swing-arm type water body top layer waterpower suck-back removes algae degreasing unit, and it adopts arc suction nozzle to greatly reduce resistance to water-flow, by hinge, rotation
Arm and lifting turntable drive the 270 ° of rotations of arc suction nozzle, and can accurately control arc suction nozzle depth of the water submerging, are capable of achieving low energy consumption, height
Algae oil removing is efficient removed on a large scale.
To achieve these goals, the utility model is employed the following technical solutions：
A kind of swing-arm type water body top layer waterpower suck-back remove algae degreasing unit, including arc suction nozzle, flexible drinking straw, suction pump,
Electromagnetic flowmeter, spiral arm, hinge, water depth sensor, lifting turntable, storage tank, hull, arc suction nozzle is taken out by suction channel Jing
Water pump is connected with the storage tank loaded on hull, and suction channel is provided with butterfly valve and electromagnetic flowmeter, and one end of spiral arm passes through spiral arm
Suspension bracket is connected with arc suction nozzle, and the other end of spiral arm can realize rotation and then drive the rotation of arc suction nozzle, spiral arm by rotating mechanism
On be also connected with lifting turntable, lifting turntable be used for according to the depth of the water submerging of water depth sensor real-time monitoring arc suction nozzle adjust revolve
Arm lifting is located at depth of the water submerging set in advance accurately to control arc suction nozzle.
Further, the power of suction pump and lifting turntable is provided by the generator loaded on hull.
Further, the rotating mechanism is hinge, and spiral arm is connected by hinge with the generator drive loaded on hull.
Further, spiral arm rotation is controlled by hinge and is capable of achieving 270 ° of arc suction nozzle rotation.
Further, described suction channel is made up of rigid conduit and flexible drinking straw, rigid conduit and flexible drinking straw it
Between connection arrangement pipe joint, linked together by retainer ring between flexible drinking straw and spiral arm.
Further, the pipe diameter determing of rigid conduit is 10-20cm, and the pipe diameter determing of flexible drinking straw is 8-20cm.
Further, the arc suction nozzle adopts 1/4 circular arc, facade to adopt inverted tubaeform shape, and plane is using circular or long
It is square.
Further, the radius of arc suction nozzle is 40-50cm, is highly 40-50cm, the edge of the nearly hull of arc suction nozzle away from
The distance of hull is 100-300cm.
The beneficial effects of the utility model and advantage are：
1. this device makes full use of fluid mechanics principle, using arc suction nozzle, suction nozzle and communicating pipe resistance it is little, current are put down
Suitable, energy loss is less, and blocking is less likely to occur, except algae oil removal efficiency height.
2. this device adopts swing-arm type structure, the 270 ° of rotations of arc suction nozzle is affected by spiral arm, except algae oil removing sphere of action
Extensively.
3. this device concentrates on the characteristic on water body top layer according to algae and greasy dirt, using water depth sensor and lifting turntable,
Arc suction nozzle depth of the water submerging is accurately controlled in real time, algae and the greasy dirt on water body top layer is targetedly absorbed, and water consumption is few, efficiency
It is high.
Description of the drawings
Fig. 1 is the utility model swing-arm type water body top layer waterpower suck-back except the profilograph of algae degreasing unit；
Fig. 2 is the utility model swing-arm type water body top layer waterpower suck-back except the top view of algae degreasing unit；
Fig. 3 is the flow field comparison diagram of triangle suction nozzle and arc suction nozzle, and wherein Fig. 3 (a) is the flow field figure of triangle suction nozzle,
Fig. 3 (b) is the flow field figure of arc suction nozzle；
Fig. 4 is the flow field comparison diagram of different suction nozzle depth, flow field when wherein Fig. 4 (a) is suction nozzle depth of the water submerging about 40cm
Figure, flow field figure when Fig. 4 (b) is suction nozzle depth of the water submerging about 10cm；
Fig. 5 is the flow field comparison diagram of the different flow velocitys that draw water；Wherein Fig. 5 (a) be draw water flow velocity for 1.0m/s when flow field figure,
Fig. 5 (b) be draw water flow velocity for 2.0m/s when flow field figure.
In figure：1- arc suction nozzles, 2- rigid conduits, 3- connecting tubes, 4- flexible drinking straws, 5- butterfly valves, 6- suction pumps, 7- electromagnetism
Flowmeter, 8- storage tanks, 9- radial davits, 10- spiral arms, 11- hinges, 12- lifting turntables；13- generators, 14- hulls, 15-
Rigid support, 16- pipe joints, 17- retainer rings, 18- water depth sensors.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is carried out clearly and completely
Description.
Refer to Fig. 1, the utility model swing-arm type water body top layer waterpower suck-back except algae degreasing unit include arc suction nozzle 1,
Flexible drinking straw 4, suction pump 6, electromagnetic flowmeter 7, spiral arm 10, hinge 11, water depth sensor 18, lifting turntable 12, storage tank 8,
Hull 14.
Please further refer to Fig. 2, arc suction nozzle 1 adopts 1/4 circular arc, facade to adopt inverted tubaeform shape, and plane is using circular
Or rectangle；The radial design of arc suction nozzle 1 is 40-50cm, is highly designed as 40-50cm, the side of the nearly hull 14 of arc suction nozzle 1
Distance of the edge away from hull 14 is designed as 100-300cm；Arc suction nozzle 1 adopts stainless steel.Arc suction nozzle 1 and rigid conduit 2
It is connected, along drawing water, direction is sequentially connected again arc connecting tube 3, pipe joint 16, flexible drinking straw 4, pipe joint 16, rigid conduit
2nd, butterfly valve 5, water pump 6, electromagnetic flowmeter 7, subsequently into storage tank 8.Rigid conduit 2 and arc connecting tube 3 are using common firm
Property material, rigid conduit 2 and arc connecting tube 3 pipe diameter determing be 10-20cm；Flexible drinking straw 4 adopts water-fast, corrosion resistant rubber
Glue material, and with certain retractility, the pipe diameter determing of flexible drinking straw 4 is 8-20cm.Inhale for ease of flexible in the course of work
Pipe 4 is moved with spiral arm 10, and flexible drinking straw 4 is fixed on into the top of spiral arm 10 using retainer ring 17.
Described arc suction nozzle 1 drives spiral arm 10 to realize 270 ° of rotations by hinge 11.The energy source of the rotation of hinge 11
In generator 13, rotating speed is adjustable.In order to take into account except the stability of algae oil removal efficiency and spiral arm 10, the Design of length of spiral arm 10 is
100-300cm, spiral arm 10 adopts high intensity, corrosion resistance steel pipe.Spiral arm 10 is connected by radial davit 9 with arc suction nozzle 1,
Radial davit 9 is connected to the both sides of suction nozzle 1, using the bar reinforcement of high intensity.
Described water depth sensor 18 can in real time show the depth of the water submerging of arc suction nozzle 1, and drive rotation by lifting turntable 12
Arm 10 realizes the precise control of the depth of the water submerging of arc suction nozzle 1.As work is carried out, the oil-containing containing algae on hull 14 in storage tank 8
Water body is more and more, and the weight of hull 14 will be caused to increase, and the draft of hull 14 increases, and arc suction nozzle 1 is rigidity with hull
Connect, therefore the depth of the water submerging of arc suction nozzle 1 is increased therewith, affects to remove algae deoiling effect.By adjusting lifting turntable 12, drive
The oscilaltion of spiral arm 10, the scope of the depth of the water submerging of precise control arc suction nozzle 1 in 5-10cm.Lifting turntable 12 is tied using hydraulic pressure
Structure, controls manually or automatically controls, generator 13 of the hydraulic system with the energy for automatically controlling on hull 14.
According to the technical parameter that the utility model is adopted, the radius of arc suction nozzle 1 is 40-50cm, height 40-50cm, is taken out
Water flow velocity is 1.5m/s, and pumping conduit caliber is 10-20cm, suction nozzle depth of the water submerging about 5-10cm.Spiral arm rotates 270 ° of time
1-5 minutes are designed as, the single under hull static position is except the direct absorption water surface area about 20m of algae oil removing2(areas of Tu2Zhong I),
Water surface area about 90m is absorbed indirectly2(areas of Tu2Zhong II).
This device builds a floating platform using hull 14.During work, hull 14 is sailed the waters of algae oil removing to be removed into, it is existing
Field install arc suction nozzle 1 and with 1 suction channel for connecting of arc suction nozzle；Regulate depth of the water submerging (the about 5- of arc suction nozzle 1
After 10cm), starter-generator 13 after engine 13 is stable, starts suction pump 6, and slow opened butterfly valve 5, and top layer contains
Algae oil-containing water body is inhaled into arc suction nozzle 1 under the effect of suction pump 6, and storage tank 8 is entered Jing after pipeline；Then slow regulating butterfly valve
5, (now correspond to caliber and draw water flow velocity for 1.5m/ for the pipeline of 20cm when electromagnetic flowmeter 7 shows that reading is 47L/s or so
S), stop butterfly valve 5 to adjust.Under the drive of hinge 11, spiral arm 10 drives the slow at the uniform velocity rotation (rotating speed is adjustable) of arc suction nozzle 1,
Absorb the algae in the range of 270 ° and greasy dirt.After the algae in the region and greasy dirt exhaustion, slow mobile hull 14 drives towards next
Individual operating area.As equipment runs, the water yield of oil-containing containing algae in storage tank 8 gradually increases, in order to continue to keep arc suction nozzle 1
Depth of the water submerging, by water depth sensor 18 and adjusts lifting turntable 12, it is ensured that the depth of the water submerging of arc suction nozzle 1 maintains 5-10cm.
After storage tank 8 is filled, ship is sailed into go back to bank, storage tank 8 is included into algae oil-containing water body be transported to appointed place and processed, it is complete
Into entirely except algae oil removal process.
The main design parameters such as suction nozzle pattern, suction nozzle depth and speed of drawing water are by setting up facade two in the utility model
Dimension hydrodynamic force Mathematical Modeling science determines, is specifically described as follows：
(1) suction nozzle pattern
Designed suction nozzle point triangle suction nozzle (is arranged symmetrically, suction nozzle opening is 90 ° of right angles, length of side 50cm, suction nozzle connects
Pipe caliber 20cm, wall thickness 2cm) and arc suction nozzle (be arranged symmetrically, radius is 50cm, suction nozzle connecting tube caliber 20cm, wall thickness
2cm).The result of calculation of different suction nozzle patterns shows, current irregularity of the triangle suction nozzle at suction nozzle entrance and constriction, energy
Loss is larger, and blocking (Fig. 4 (a)) easily occurs；Arc suction nozzle current are smoothed out, and disturbance is few, and energy loss is less, and is not susceptible to
Blocking (Fig. 4 (b)).Therefore, the absorption effect using arc suction nozzle is preferable.
(2) suction nozzle depth
The result of calculation of different suction nozzle depth shows that when suction nozzle is deeper with water surface distance, the water yield into suction nozzle is larger, leads
Cause the pumping efficiency of top layer algae and greasy dirt relatively low, absorb effect on driving birds is not good (the suction nozzle depth of the water submerging about 40cm of Fig. 4 (a))；Suction nozzle
When shorter with water surface distance, the water body into suction nozzle is inhaled essentially from top layer, but in view of the water fluctuation during foot
When head depth of the water submerging is less than 5cm, suction nozzle may be caused easily to surface and water cannot be sucked；Therefore, waterpower suck-back removes algae oil removing
Device need to accurately control the distance between suction nozzle and water surface, the suction nozzle depth of the water submerging about 5-10cm effects preferably (suction nozzle of Fig. 4 (b)
Depth of the water submerging about 10cm).
(3) draw water speed
The draw water result of calculation of flow velocity of difference shows that when flow velocity is less, suction nozzle top forms whirlpool, and part algae and greasy dirt will
Collect here and do not enter pipeline, affect suction effect (Fig. 5's (a) draws water flow velocity for 1.0m/s)；Flow velocity is bigger, into pipeline
Air it is more, water body mainly flows along tube wall, and final suction algae amount reduces on the contrary, and because the presence of air is easily caused pipeline
Strenuous vibration, affects operation stability (Fig. 5's (b) draws water flow velocity for 2.0m/s).Therefore, when the flow velocity that draws water is 1.5m/s, inhale
Algae oil absorbing effect is preferable and runs relatively stable (Fig. 3's (b) draws water flow velocity for 1.5m/s).
Therefore, the utility model adopt arc suction nozzle, its radius 50cm, upper wide 120cm, lower wide 20cm, highly be 50cm.
Suction nozzle depth of the water submerging is controlled in 5-10cm or so by lifting turntable, the flow velocity that draws water is set to 1.5m/s or so, now arc inhales algae
Oil absorbing effect is optimal.
Claims (8)
1. a kind of swing-arm type water body top layer waterpower suck-back removes algae degreasing unit, it is characterised in that：Including arc suction nozzle (1), flexibility
Suction pipe (4), suction pump (6), electromagnetic flowmeter (7), spiral arm (10), hinge (11), water depth sensor (18), lifting turntable
(12), storage tank (8), hull (14), arc suction nozzle (1) is by suction channel Jing suction pumps (6) and the storage tank loaded on hull
(8) connect, suction channel is provided with butterfly valve (5) and electromagnetic flowmeter (7), one end of spiral arm (10) by radial davit (9) and
Arc suction nozzle (1) is connected, and the other end of spiral arm (10) can realize rotation and then drive arc suction nozzle (1) rotation by rotating mechanism,
Also it is connected with lifting turntable (12) on spiral arm (10), lifting turntable (12) is for according to water depth sensor (18) real-time monitoring arc
The depth of the water submerging of suction nozzle (1) adjusts spiral arm (10) lifting accurately to control arc suction nozzle (1) positioned at depth of the water submerging set in advance.
2. waterpower suck-back in swing-arm type water body top layer according to claim 1 removes algae degreasing unit, it is characterised in that：Suction pump
(6) and lifting turntable (12) power by loaded on hull generator (13) provide.
3. waterpower suck-back in swing-arm type water body top layer according to claim 1 removes algae degreasing unit, it is characterised in that：The rotation
Rotation mechanism is hinge, and spiral arm (10) is by hinge and generator (13) drive connection loaded on hull.
4. waterpower suck-back in swing-arm type water body top layer according to claim 3 removes algae degreasing unit, it is characterised in that：By hinge
Chain (11) control spiral arm (10) rotation is capable of achieving arc suction nozzle (1) and rotates 270 °.
5. waterpower suck-back in swing-arm type water body top layer according to claim 1 removes algae degreasing unit, it is characterised in that：Described
Suction channel is made up of rigid conduit (2) and flexible drinking straw (4), the connection arrangement between rigid conduit (2) and flexible drinking straw (4)
Pipe joint (16), is linked together between flexible drinking straw (4) and spiral arm (10) by retainer ring (17).
6. waterpower suck-back in swing-arm type water body top layer according to claim 5 removes algae degreasing unit, it is characterised in that：Rigid pipe
The pipe diameter determing in road (2) is 10-20cm, and the pipe diameter determing of flexible drinking straw (4) is 8-20cm.
7. waterpower suck-back in swing-arm type water body top layer according to claim 1 removes algae degreasing unit, it is characterised in that：The arc
Using 1/4 circular arc, facade adopts inverted tubaeform shape to shape suction nozzle (1), and plane is using circular or rectangle.
8. waterpower suck-back in swing-arm type water body top layer according to claim 7 removes algae degreasing unit, it is characterised in that：Arc is inhaled
The radius of head (1) is 40-50cm, is highly 40-50cm, the edge of the nearly hull (14) of arc suction nozzle (1) far from hull (14) away from
From for 100-300cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207778.0U CN206143751U (en) | 2016-11-09 | 2016-11-09 | Swing -arm type water top layer water conservancy suck -back removes algae deoiling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207778.0U CN206143751U (en) | 2016-11-09 | 2016-11-09 | Swing -arm type water top layer water conservancy suck -back removes algae deoiling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206143751U true CN206143751U (en) | 2017-05-03 |
Family
ID=58624084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621207778.0U Withdrawn - After Issue CN206143751U (en) | 2016-11-09 | 2016-11-09 | Swing -arm type water top layer water conservancy suck -back removes algae deoiling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206143751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284263A (en) * | 2016-11-09 | 2017-01-04 | 长江水利委员会长江科学院 | A kind of rotary-arm type water body top layer waterpower suck-back is except algae degreasing unit and method |
-
2016
- 2016-11-09 CN CN201621207778.0U patent/CN206143751U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284263A (en) * | 2016-11-09 | 2017-01-04 | 长江水利委员会长江科学院 | A kind of rotary-arm type water body top layer waterpower suck-back is except algae degreasing unit and method |
| CN106284263B (en) * | 2016-11-09 | 2019-03-15 | 长江水利委员会长江科学院 | A kind of swing-arm type water body surface layer waterpower suck-back removes algae degreasing unit and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205623583U (en) | Water -saving irrigating device is used to rice | |
| CN206342944U (en) | A kind of Oil sucking device | |
| CN107047244A (en) | A kind of water conservancy irrigation device | |
| CN206118674U (en) | Novel park and garden irrigating device | |
| CN205953675U (en) | Wind -force microcirculation aeration machine | |
| CN106284263B (en) | A kind of swing-arm type water body surface layer waterpower suck-back removes algae degreasing unit and method | |
| CN206143751U (en) | Swing -arm type water top layer water conservancy suck -back removes algae deoiling device | |
| CN107416983A (en) | Water environment treatment system and method based on water pumping of the wind-force technology | |
| CN1872741A (en) | Blade, aeration combined typed bleeding machine | |
| CN106386640A (en) | Greening system for sturgeon breeding | |
| CN109024519B (en) | Novel lake surface blue algae collecting device | |
| CN208870013U (en) | A kind of novel lake surface blue algae collecting device | |
| CN108755632A (en) | A kind of water surface foreign matter fishing device used for aquiculture | |
| CN210382301U (en) | Automatic water changing and oxygen increasing device for mudflat aquaculture pond | |
| CN207110018U (en) | A kind of hydraulic engineering pipe dredging device | |
| CN103535300A (en) | Nest floating method | |
| CN207581461U (en) | A kind of modified siphon type pulse water device | |
| CN203891174U (en) | Swinging sewage disposal device | |
| CN105766774B (en) | A kind of cultivating pool sewage suction device | |
| CN207047061U (en) | Ecological wetland system and its wastewater treatment equipment | |
| CN206101148U (en) | Bury formula shower nozzle | |
| CN105724308B (en) | A kind of cultivating pool soil pick-up method | |
| CN207476513U (en) | A kind of irrigation rig | |
| CN107840470A (en) | A kind of device for improving culturing pool pond water quality using wind-power water-pumping machine | |
| CN104521869B (en) | Siphonopods high density hatching barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170503 Effective date of abandoning: 20190315 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170503 Effective date of abandoning: 20190315 |