CN102650123A - Floating oncomelania blocking device with clamping grooves - Google Patents
Floating oncomelania blocking device with clamping grooves Download PDFInfo
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- CN102650123A CN102650123A CN2011100432410A CN201110043241A CN102650123A CN 102650123 A CN102650123 A CN 102650123A CN 2011100432410 A CN2011100432410 A CN 2011100432410A CN 201110043241 A CN201110043241 A CN 201110043241A CN 102650123 A CN102650123 A CN 102650123A
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- oncomelania
- snail
- water
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Abstract
The invention provides a floating oncomelania blocking device with clamping grooves, which is arranged in an oncomelania sinking tank, and comprises oncomelania blocking walls and clamping grooves which are respectively arranged on the two side walls of the oncomelania sinking tank, wherein the oncomelania blocking walls are respectively inserted in the clamping grooves, and the height of the oncomelania blocking walls is 0.5-0.6m. The device utilizes the clamping grooves and the floating oncomelania blocking walls to replace the traditional bricking concrete wall, when the water flow which contains oncomelania passes by the oncomelania blocking walls, floaters on the water surface can be blocked so that oncomelania is prevented from being spread to the downstream along with the water flow; and moreover, the oncomelania blocking walls can float up and down along with the water level, so the technical problem of an overlarge current-obstruction area under the conditions of canal system drainage, irrigation and other high water levels are effectively solved. The oncomelania blocking walls are reasonable in design and simple in structure, are flexible to install and convenient for getting materials, completely meet the requirements of preventing and controlling oncomelania spreading in a shistosoma affected area, and have a good popularization prospect.
Description
Technical field
The present invention relates to water conservancy prevention and cure of schistosomiasis field, specifically is that a kind of draw-in groove floating is blocked the spiral shell device.
Background technology
Snail fever is serious harm people's health and life security, influence the serious infectious diseases of social and economic development.Once seriously be popular in 12 provinces such as Jiangsu, China south, Zhejiang, Jiangxi, Anhui, Fujian, Shanghai, Guangdong, Guangxi, Hunan, Hubei, Yunnan, Sichuan; Its appeal is strong; The propagation link is many, and popular scope is wide, the pathophorous first place of infection rate seasonal menstruation water.Oncomelania is the maximum pathogeny carrier of blood fluke, is bilharzial unique intermediate host.Facts have proved, control oncomelania diffusion effectively the blood blocked fluke disease in the propagation of locality and popular.
It mainly is through hydraulic engineerings such as rivers and lakes improvement, dyke building, water-saving irrigation, human livestock drinking water and comprehensive treatments of small watersheds that water conservancy combines prevention and cure of snail fever; Change the oncomelania living environment; Prevent that oncomelania from multiplying diffusion; Thereby reaching the purpose that reduces population infection snail fever probability, is the important component part of prevention and cure of snail fever work.Water conservancy prevention and cure of schistosomiasis engineering mainly comprises culverts and water gates water conservancy prevention and cure of schistosomiasis engineering measure, dyke water conservancy prevention and cure of schistosomiasis engineering measure, the canal system water conservancy engineering measure of the row of filling etc.
Culverts and water gates is one of water conservancy projects common in the agriculture irrigated area, and the water transfer of culverts and water gates rivers and canals is the main mode of water delivery between the zone, also is the main path that oncomelania spreads and spreads with the current direction downstream.Through the construction of infrastructure decades, irrigation and drainage system is perfect gradually, and irrigation canals and ditches are crisscross, forms the general layout that the network of rivers interweaves and gets in touch.In case oncomelania gets into canal system from culverts and water gates, will inevitably cause oncomelania to spread diffusion, cause serious consequence.Therefore, culverts and water gates resistance spiral shell is the problem that stops the most critical of oncomelania diffusion.
Snail sedimentation tank is one of common mode of culverts and water gates resistance spiral shell, and its principle is that the interior flow velocity of snail sedimentation tank is reduced, and when current pass through snail sedimentation tank, oncomelania is sunk in snail sedimentation tank, and do not cause oncomelania to spread downstream.Please refer to Fig. 1 and Fig. 2, the snail sedimentation tank 10 of prior art is arranged between culverts and water gates 20 and the irrigation canal 30, and snail sedimentation tank 10 generally includes upper reaches linkage section 11, active section 12 and downstream linkage section 13.In the middle of active section 12 was arranged in, oncomelania sedimentation in snail sedimentation tank 10 was convenient to greater than culverts and water gates 20 in the discharge area.Its bottom is lower than upstream and downstream channel bottom, can prevent that the heavy oncomelania that collects in the snail sedimentation tank bottom from producing the irrigation canal 30 that slides or roll the entering downstream.Snail sedimentation tank need be killed with desilting the oncomelania in the pond and handle after 10 operation a period of times, ensured the trouble-free operation of snail sedimentation tank.
Oncomelania displacement scope is little, can initiatively not be diffused into far distance, it spread that on a large scale, at a distance and mainly carry out by means of current.Being adsorbed on the floating things such as the residual leaf of deadwood, pasture and water branch and drifting about in the water, is the main mode of the long distance diffusion of oncomelania.Upper end at snail sedimentation tank 10 upper reaches linkage sections 11 can be provided with snail control wall; Its effect one is to stop floating thing to get into snail sedimentation tank 10, avoids blocking snail sedimentation tank 10, makes snail sedimentation tank 10 can normally bring into play the diversion function; The 2nd, can utilize the oncomelania that sticks on the floating thing to run into the characteristics that can separate with floating thing after the collision; Stop that through snail control wall oncomelania drifts about with floating thing, help oncomelania sedimentation in water, improve anti-spiral shell, control spiral shell effect.
Existing snail control wall exists following problem: (1) fixed-site, can't regulate.The present snail control wall overwhelming majority is by brick concrete constructions, and fixed-site is arranged underaction.(2) current obstruction area is big, and influence is controlled flood and drained flooded fields or diversion irrigation.The bottom outlet of snail control wall should be arranged in the following 0.5m of minimum operation water level.General channel water level exists certain luffing, and when high water level, snail control wall has tangible resistance effect.(3) control spiral shell effect is bad.Because the channel SEA LEVEL VARIATION is bigger, when water level covers snail control wall or be lower than the bottom outlet of snail control wall, do not reach the effect of interception floating thing.
Summary of the invention
The present invention provides a kind of draw-in groove floating to block the spiral shell device, and no matter the high low water stage floating thing of face that all can intercept water stops that oncomelania spreads downstream, effectively reduces current obstruction area simultaneously, is convenient to diversion or water drainage.
A kind of draw-in groove floating is blocked the spiral shell device, is arranged in the snail sedimentation tank, the draw-in groove that comprises snail control wall and on two sidewalls of snail sedimentation tank, be provided with respectively, and snail control wall is plugged in the draw-in groove, and the height of snail control wall is 0.5-0.6m.
The present invention has following advantage:
(1) construction, easy for installation.After building up draw-in groove, put into draw-in groove to snail control wall and get final product;
(2) current obstruction area is little.Snail control wall can fluctuate with SEA LEVEL VARIATION, in highstand, can effectively reduce current obstruction area, is convenient to diversion or water drainage, makes snail sedimentation tank can normally bring into play diversion or water drainage function;
(3) can reach tangible control spiral shell effect.Snail control wall can fluctuate with SEA LEVEL VARIATION, and no matter high low water stage all can float over the floating thing of tackling the water surface in the water, stops that oncomelania drifts about with floating thing; Help oncomelania sedimentation in water; Stop that oncomelania spreads downstream, can help oncomelania sedimentation in water, improve anti-spiral shell, control spiral shell effect.
Description of drawings
Fig. 1 is the vertical view of prior art snail sedimentation tank;
Fig. 2 be among Fig. 1 A-A to sectional view;
Fig. 3 is the vertical view that draw-in groove floating of the present invention is blocked the spiral shell device;
Fig. 4 be among Fig. 3 B-B to sectional view;
Fig. 5 is the lateral view that draw-in groove floating of the present invention is blocked the spiral shell device.
Among the figure: 10, the 40-snail sedimentation tank; 11,41-upper reaches linkage section; 12, the 42-active section; 13,43-downstream linkage section; 20, the 50-culverts and water gates; 30, the 60-irrigation canal; The 44-draw-in groove; The 45-snail control wall.
The specific embodiment
To combine the accompanying drawing among the present invention below, the technical scheme among the present invention will be carried out clear, intactly description.
Please in the lump with reference to figure 3 to Fig. 5, draw-in groove floating of the present invention is blocked the spiral shell device and is arranged in the snail sedimentation tank 40, the draw-in groove 44 that comprises snail control wall 45 and on 40 two sidewalls of snail sedimentation tank, be provided with respectively, snail control wall 45 is plugged in the draw-in groove 44, the height of snail control wall 45 is 0.5-0.6m.
The snail control wall 45 of the present invention's design is the draw-in groove floating structure, owing to use fixedly snail control wall 45 of draw-in groove 44, can prevent that snail control wall 45 from tilting.
The present invention adopts law of buoyancy that snail control wall is designed, and the weight that arranges the volume of water according to snail control wall equals the weight of self, if the height of design snail control wall is 0.5m, the degree of depth that is immersed in the water is 0.3m, can obtain:
ρ
ThingVg=3/5 ρ
WaterVg
Therefore: ρ
Thing=3/5 ρ
Water=0.6g/cm
3
The density of snail control wall is 0.6g/cm
3, therefore can adopt less veneer (the density 0.56g/cm of density
3), birch (density 0.61g/cm
3) wait material to make snail control wall.
Adopt the present invention to have following advantage:
(1) construction, easy for installation.After building up draw-in groove, put into draw-in groove to snail control wall and get final product;
(2) current obstruction area is little.Snail control wall can fluctuate with SEA LEVEL VARIATION, in highstand, can effectively reduce current obstruction area, is convenient to diversion or water drainage, makes snail sedimentation tank can normally bring into play diversion or water drainage function;
(3) can reach tangible control spiral shell effect.Snail control wall can fluctuate with SEA LEVEL VARIATION, and no matter high low water stage all can float over the floating thing of tackling the water surface in the water, stops that oncomelania drifts about with floating thing; Help oncomelania sedimentation in water; Stop that oncomelania spreads downstream, can help oncomelania sedimentation in water, improve anti-spiral shell, control spiral shell effect.
The present invention utilizes draw-in groove and floating snail control wall to replace traditional brick concrete wall, when the current that contain oncomelania when the novel snail control wall, can tackle the floating thing of the water surface, and then reach and stop that oncomelania spreads with the current direction downstream; This snail control wall can fluctuate with water level simultaneously, the excessive technical barrier of current obstruction area when effectively having solved high water level such as canal system water drainage, irrigation.This snail control wall is reasonable in design, and is simple in structure, flexible for installation, draws materials conveniently, satisfies the needs of blood fluke epidemic-stricken area prevention and control oncomelania diffusion fully, has good promotion prospect.
The above; Be merely the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who belongs to the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (4)
1. a draw-in groove floating is blocked the spiral shell device; It is characterized in that: said draw-in groove floating is blocked the spiral shell device and is arranged in the snail sedimentation tank (40); The draw-in groove (44) that comprises snail control wall (45) and on (40) two sidewalls of snail sedimentation tank, be provided with respectively; Snail control wall (45) is plugged in the draw-in groove (44), and the height of snail control wall (45) is 0.5-0.6m.
2. draw-in groove floating as claimed in claim 1 is blocked the spiral shell device; It is characterized in that: snail sedimentation tank (40) is arranged between culverts and water gates (50) and the irrigation canal (60); Snail sedimentation tank (40) comprises upper reaches linkage section (41), active section (42) and downstream linkage section (43), and draw-in groove (44) is arranged on two sidewalls that snail sedimentation tank (40) middle and upper reaches linkage section (41) locates.
3. draw-in groove floating as claimed in claim 2 is blocked the spiral shell device, it is characterized in that: active section (42) is arranged in the middle of the snail sedimentation tank (40), and the discharge area is greater than culverts and water gates (50).
4. draw-in groove floating as claimed in claim 1 is blocked the spiral shell device, it is characterized in that: snail control wall (45) adopts veneer or birch to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100432410A CN102650123A (en) | 2011-02-23 | 2011-02-23 | Floating oncomelania blocking device with clamping grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100432410A CN102650123A (en) | 2011-02-23 | 2011-02-23 | Floating oncomelania blocking device with clamping grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102650123A true CN102650123A (en) | 2012-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100432410A Pending CN102650123A (en) | 2011-02-23 | 2011-02-23 | Floating oncomelania blocking device with clamping grooves |
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| CN (1) | CN102650123A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758081A (en) * | 2014-01-27 | 2014-04-30 | 黄滨 | Floating self-adjustment water-stopping dam |
| CN104074175A (en) * | 2014-07-14 | 2014-10-01 | 长江水利委员会长江科学院 | Semi-open type swirling flow oncomelania discharge device |
| CN108951530A (en) * | 2018-09-30 | 2018-12-07 | 安徽理工大学 | It is a kind of navigation diversion works except spiral shell design |
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| CN1150200A (en) * | 1995-11-13 | 1997-05-21 | 同济医科大学 | Culvert and sluice canal system and method for separating and interception snail from water |
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| CN201952786U (en) * | 2011-02-23 | 2011-08-31 | 长江水利委员会长江科学院 | Clamping groove float type oncomelania obstructing device |
-
2011
- 2011-02-23 CN CN2011100432410A patent/CN102650123A/en active Pending
Patent Citations (6)
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| CN1150200A (en) * | 1995-11-13 | 1997-05-21 | 同济医科大学 | Culvert and sluice canal system and method for separating and interception snail from water |
| JP2003232026A (en) * | 2002-02-05 | 2003-08-19 | Hiroshi Inada | Block for water way for inhabitation of flora and fauna, and water way for inhabitation of flora and fauna |
| CN2784459Y (en) * | 2005-03-24 | 2006-05-31 | 长江水利委员会长江科学院 | Snail-depositing pond of culvert gate and channel water-delivery engineering |
| CN200971490Y (en) * | 2006-11-21 | 2007-11-07 | 黄怀炜 | Powerless self-float sewage arresting floating raft |
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| 卢金友等: "沉螺池阻螺措施优化试验研究", 《人民长江》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758081A (en) * | 2014-01-27 | 2014-04-30 | 黄滨 | Floating self-adjustment water-stopping dam |
| CN104074175A (en) * | 2014-07-14 | 2014-10-01 | 长江水利委员会长江科学院 | Semi-open type swirling flow oncomelania discharge device |
| CN104074175B (en) * | 2014-07-14 | 2015-09-23 | 长江水利委员会长江科学院 | A kind of semi-open type eddy flow row spiral shell device |
| CN108951530A (en) * | 2018-09-30 | 2018-12-07 | 安徽理工大学 | It is a kind of navigation diversion works except spiral shell design |
| CN108951530B (en) * | 2018-09-30 | 2024-04-16 | 安徽理工大学 | Spiral shell removing project of navigation diversion project |
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Application publication date: 20120829 |