CN104074175B - A kind of semi-open type eddy flow row spiral shell device - Google Patents
A kind of semi-open type eddy flow row spiral shell device Download PDFInfo
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- CN104074175B CN104074175B CN201410332494.3A CN201410332494A CN104074175B CN 104074175 B CN104074175 B CN 104074175B CN 201410332494 A CN201410332494 A CN 201410332494A CN 104074175 B CN104074175 B CN 104074175B
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Abstract
The invention discloses a kind of semi-open type eddy flow row spiral shell device, comprise water inlet pipe, spiral flow device, row's screwed pipe, collection spiral shell tank and effluent trough composition.Described water inlet pipe is made up of pressure conduit, regulating gate and Emergency Gate.Described spiral flow device is made up of water inlet, semi-open type overfall, spiral flow cylindricality bucket and spiral flow funnel.Described row's screwed pipe is made up of pressure conduit, regulating gate and Emergency Gate.Described collection spiral shell tank is made up of tank, energy dissipator, Ji Luogou and overflow weir.Described effluent trough is made up of holding groove, tank, energy dissipator and overflow weir.The advantages such as the present invention has that floor space is little, row's spiral shell efficiency high, unpowered gravity flow, device construction are simple, are adapted at vast Schistosomiasis Epidemic large-scale promotion application.
Description
Technical field
The present invention relates to water conservancy prevention and cure of schistosomiasis technical field, specifically a kind of semi-open type eddy flow row spiral shell device.
Background technology
Snail fever is serious harm body health of people and life security, the serious infectious diseases affecting epidemic-stricken area socio-economic development, and its appeal is strong, and propagate link many, Epidemic Scope is wide.Oncomelania is the maximum pathogeny carrier of blood fluke, is bilharzial unique intermediate host, facts have proved, controls oncomelania spread and effectively can block the spread and epidemic of snail fever in locality.Water conservancy prevention and cure of schistosomiasis engineering refers in hydraulic engineering to be anti-spiral shell, go out spiral shell and the engineering measure taked.Over more than 50 year, Schistosomiasis Epidemic is in conjunction with hydraulic engineering constructions such as dike construct, the regulation of lake, river, culverts and water gates transformation, Canal System Construction, drinking-water and Small Watershed Management, take various water conservancy prevention and cure of schistosomiasis measure, change oncomelania living environment, prevent Oncomelania Snails from spreading, reduce schistosomiasis infection probability, obtain very large achievement, have accumulated rich experience.
Along with expanding economy, also increasing to the demand of water resource, get more and more across basin and interregional water transfer, diversion works water diversion also progressively increases, considerably increase oncomelania from epidemic-stricken area to the risk that Pest-or disease-free area spreads, how taking effective measure to prevent oncomelania from being spread by diversion works is also one of water conservancy prevention and cure of schistosomiasis problem that must solve.The water conservancy prevention and cure of schistosomiasis engineering measure in the past especially resistance such as snail sedimentation tank and middle layer water withdrawal spiral shell technology has played important effect at control oncomelania by culverts and water gates diffusion, but the conventional measure such as snail sedimentation tank and middle layer water withdrawal to there is floor space wide, the problem that fund input is large, and the restriction of the factor such as topography and geomorphology and hydrologic condition of being subject to, the benefit of engineering is difficult to be not fully exerted, and the new technology and method being therefore badly in need of research control culverts and water gates and channel oncomelania spread adapts to the demand of new situations.
Eddy flow sand discharge technology can be divided into scroll sand discharge, strong spiral flow sand discharge funnel, other hydrocyclones etc. according to different form of structure.Spiral flow sand discharge utilizes the spiral flow produced in facility to get rid of diversion to carry out husky a kind of technology.The oncomelania characteristics of motion and rule of sediment movement have certain similitude, and eddy flow row spiral shell technology, is the principle using for reference eddy flow sand discharge, by spiral flow, water is separated with oncomelania.Current domestic correlative study mainly concentrates on spiral flow sand discharge technical elements, not yet has about spiral flow row spiral shell relation technological researching.
Summary of the invention
It is little that technical problem to be solved by this invention is to provide a kind of floor space, and combining efficient, energy-conservation, semi-open type eddy flow row spiral shell device easily, by manually arranging spiral flow, can be separated realizing oncomelania containing oncomelania epidemic disease water by spiral flow device with water body.
For achieving the above object, the technical solution used in the present invention is:
A kind of semi-open type eddy flow row spiral shell device, comprises water inlet pipe, spiral flow device, row's screwed pipe, collection spiral shell tank and effluent trough,
Described water inlet pipe comprises water inlet pipe pressure conduit and the water inlet pipe Emergency Gate that is arranged in water inlet pipe pressure conduit and water inlet pipe regulating gate, water inlet pipe regulating gate is for controlling the uninterrupted being entered spiral flow device by water inlet pipe, water inlet pipe Emergency Gate is used for pipe dredging and maintenance, before being arranged in water inlet pipe regulating gate;
Described spiral flow device is by water inlet, annular cover plate, semi-open type overfall, spiral flow cylindricality bucket and spiral flow funnel composition, spiral flow funnel is back taper, spiral flow funnel top seals with spiral flow cylindricality bucket and connects, spiral flow its lower portion arranges opening, water inlet is positioned at the middle and lower part of spiral flow cylindricality bucket, water inlet flow direction is spiral flow cylindricality bucket tangential direction, annular cover plate horizontal arrangement is in water inlet top, annular cover plate starting point is positioned at the positive top of water inlet, and cover water inlet completely, semi-open type overfall is positioned at spiral flow cylindricality bucket top, semi-open type overfall open height is a little more than annular cover plate,
Described row's screwed pipe forms by arranging screwed pipe pressure conduit, row's screwed pipe Emergency Gate and row's screwed pipe regulating gate, row screwed pipe pressure conduit top seals with spiral flow its lower portion opening and connects, row's screwed pipe Emergency Gate is arranged on row screwed pipe pressure conduit front end, the row's of setting screwed pipe regulating gate after row's screwed pipe Emergency Gate;
Described collection spiral shell tank by collect spiral shell tank energy dissipator, collection screw channel, Ji Luogou and collection spiral shell tank overflow weir form, collection screw channel connects with row's screwed pipe, collection spiral shell tank energy dissipator is arranged on collection screw channel front end, Ji Luogou to be arranged in collection screw channel bottom rear end, setting direction is collection screw channel cross-sectional direction, for the oncomelania of collecting precipitation, collection spiral shell tank overflow weir is arranged on collection screw channel tail end;
Described effluent trough is made up of holding groove, effluent trough energy dissipator, tank, effluent trough overflow weir, holding groove front end is connected with semi-open type overfall height incorrect bit, be positioned at below semi-open type overfall, for accept semi-open type overfall overflow without oncomelania current, holding groove tail end is connected with tank, and effluent trough Emergency Gate is arranged in the middle part of holding groove, and tank front end connects with holding groove tail end, effluent trough energy dissipator is arranged on tank front end, and effluent trough overflow weir is arranged on tank tail end.
Further, the pipeline import and export differential water pressures of water inlet pipe pressure conduit is greater than the water surface and water inlet water-head in spiral flow device.
Further, spiral flow Funnel diameter and spiral flow cylindricality bucket equal diameters, the gradient of spiral flow funnel is to be advisable between 1:10 ~ 1:5.
Further, water inlet shape is rectangle, circle or oval.
Further, annular cover plate shape is the annular between 90 ° ~ 180 °, and external diameter is identical with spiral flow cylindricality bucket, and structure is tightly connected with spiral flow cylindricality bucket, and annular cover plate internal diameter is that 75% ~ 85% of external diameter is advisable.
Further, semi-open type overfall opening starting point is consistent with annular cover plate starting point, and opening angle is advisable with 90 °.
Further, screw channel and sink structure form is integrated as open channel.
Further, the form of structure collecting spiral shell tank energy dissipator and effluent trough energy dissipator is common shutter board or drift plank.
Further, collect spiral shell ditch furrow width to be advisable with 0.1 ~ 0.3m.
Further, spiral shell tank overflow weir structure form is integrated as triangular-notch weir or broad crested weir.
The invention has the advantages that: floor space is little, high, the unpowered gravity flow of row's spiral shell efficiency, device construct simple advantage.This device utilizes spiral flow device to realize oncomelania and is separated with water body dynamic process, compared with traditional oncemelania-free intake engineerings such as snail sedimentation tank, with saving floor space more than 80% under flow, to provide convenience condition for realizing large discharge oncemelania-free intake.This device is different in nature according to the bulk density difference of oncomelania and water, utilize spiral flow centrifugal principle, oncomelania relatively large for unit weight is concentrated on spiral flow funnel bottom, discharge from together with few part water body through arranging screwed pipe, most water body is then overflowed by the semi-open type overfall on spiral flow cylindricality bucket top, as can safe utilization enter effluent trough without spiral shell water body.This device utilizes streaming potential, makes water body pass through gravity flow and forms spiral flow, can realize oncomelania be separated with water body without the need to other dynamic actions.This apparatus structure is simple, and between each building block structure and parts, connected mode is very clear, and device construction and installation are very simple, are adapted at vast Schistosomiasis Epidemic large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is the structural representation of semi-open type eddy flow of the present invention row spiral shell device;
Fig. 2 is the elevation of semi-open type eddy flow of the present invention row spiral shell device;
Fig. 3 is the lateral view of semi-open type eddy flow of the present invention row spiral shell device.
In figure: 1-water inlet pipe pressure conduit, 2-water inlet pipe Emergency Gate, 3-water inlet pipe regulating gate, 4-water inlet, 5-annular cover plate, 6-semi-open type overfall, 7-spiral flow cylindricality bucket, 8-spiral flow funnel, 9-row screwed pipe pressure conduit, 10-row screwed pipe Emergency Gate, 11-row screwed pipe regulating gate, 12-collection spiral shell tank energy dissipator, 13-collection screw channel, 14-Ji Luogou, 15-collection spiral shell tank overflow weir, 16-holding groove, 17-effluent trough Emergency Gate, 18-effluent trough energy dissipator, 19-tank, 20-effluent trough overflow weir.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described.
Figure 1 shows that the structural representation of semi-open type eddy flow of the present invention row spiral shell device, described semi-open type eddy flow row spiral shell device comprises water inlet pipe, spiral flow device, row's screwed pipe, collection spiral shell tank and effluent trough.
Described water inlet pipe comprises water inlet pipe pressure conduit 1 and the water inlet pipe Emergency Gate 2 that is arranged in water inlet pipe pressure conduit 1 and water inlet pipe regulating gate 3.Described water inlet pipe pressure conduit 1 material can be common steel tube, prefabricated reinforced concrete pipe or cast-in-situ reinforced concrete pipe, for ensureing that current enter spiral flow device smoothly, the pipeline of water inlet pipe pressure conduit 1 is imported and exported differential water pressures and need be greater than the water surface and water inlet water-head in spiral flow device.Water inlet pipe regulating gate 3 is for controlling the uninterrupted being entered spiral flow device by water inlet pipe.Water inlet pipe Emergency Gate 2 for pipe dredging and maintenance, before being arranged in water inlet pipe regulating gate 3.
Described spiral flow device is made up of water inlet 4, annular cover plate 5, semi-open type overfall 6, spiral flow cylindricality bucket 7 and spiral flow funnel 8.Spiral flow cylindricality bucket 7 material can be general steel plate or cast-in-situ reinforced concrete, and cylindricality bucket height and diameter are determined according to semi-open type eddy flow row spiral shell apparatus design flow scale.Spiral flow funnel 8 is back taper, material can be general steel plate or cast-in-situ reinforced concrete, spiral flow funnel 8 top seals with spiral flow cylindricality bucket 7 and connects, diameter and spiral flow cylindricality bucket 7 equal diameters, the gradient of spiral flow funnel 8 is generally to be advisable between 1:10 ~ 1:5, and concrete value of slope is determined according to semi-open type eddy flow row spiral shell apparatus design uninterrupted.Spiral flow funnel 8 bottom arranges opening, and opening diameter size is determined according to semi-open type eddy flow row spiral shell apparatus design uninterrupted.Water inlet 4 is positioned at the middle and lower part of spiral flow cylindricality bucket 7, and shape can be set to rectangle, circle or oval, and water inlet flow direction should be spiral flow cylindricality bucket 7 tangential direction, and water inlet 4 aperture is determined according to stream row spiral shell apparatus design uninterrupted.Annular cover plate 5 horizontal arrangement is in water inlet 4 top (as shown in Figures 2 and 3), material can be general steel plate or cast-in-situ slabs reinforced concrete, under Stability Analysis of Structures prerequisite, annular cover plate 5 thickness is advisable with thin, shape is the annular between 90 ° ~ 180 °, annular cover plate 5 starting point is positioned at the positive top of water inlet 4, water inlet 4 need be covered completely, annular cover plate 5 external diameter is identical with spiral flow cylindricality bucket 7, structure is tightly connected with spiral flow cylindricality bucket 7, and annular cover plate 5 internal diameter is generally 75% ~ 85% of external diameter and is advisable.Semi-open type overfall 6 is positioned at spiral flow cylindricality bucket 7 top, enters holding groove 16 for carrying without oncomelania water body, and semi-open type overfall 6 open height is a little more than annular cover plate 5, and opening starting point is consistent with annular cover plate 5 starting point, and opening angle is advisable with 90 °.
Described row's screwed pipe forms by arranging screwed pipe pressure conduit 9, row's screwed pipe Emergency Gate 10 and row's screwed pipe regulating gate 11.Row's screwed pipe pressure conduit 9 enters collection screw channel 13 for carrying oncomelania and small part water body, material can be common steel tube, prefabricated reinforced concrete pipe or cast-in-situ reinforced concrete pipe, row screwed pipe pressure conduit 9 top seals with spiral flow funnel 8 lower openings and connects, internal diameter and spiral flow funnel 8 lower openings equal diameters.Row screwed pipe Emergency Gate 10 row's of being arranged on screwed pipe pressure conduit 9 front end, for pipe dredging and maintenance.The row's of setting screwed pipe regulating gate 11 after row's screwed pipe Emergency Gate 10, for the uninterrupted of the row's of control screwed pipe pressure conduit 9.
Described collection spiral shell tank forms by collecting spiral shell tank energy dissipator 12, collection screw channel 13, collection spiral shell ditch 14 and collection spiral shell tank overflow weir 15.Collection screw channel 13 connects with row's screwed pipe, and material is cast-in-situ reinforced concrete, and form of structure is open channel, and size is determined according to semi-open type eddy flow row spiral shell apparatus design uninterrupted.Collection spiral shell tank energy dissipator 12 is arranged on collection screw channel 13 front end, and be convenient to current and tend towards stability fast, protection collects screw channel 13 structural safety and impels oncomelania to sink as early as possible, and the form of structure of collection spiral shell tank energy dissipator 12 can be common shutter board, drift plank etc.Collection spiral shell ditch 14 is arranged in collection screw channel 13 bottom rear end, and setting direction is collection screw channel 13 cross-sectional direction, and for the oncomelania of collecting precipitation, to focus on, collection spiral shell ditch 14 furrow width is advisable with 0.1 ~ 0.3m.Collection spiral shell tank overflow weir 15 is arranged on collection screw channel 13 tail end, and form of structure can be triangular-notch weir, broad crested weir etc., and material according to the demand of specific constructive form, can select general steel plate or cast-in-situ reinforced concrete.
Described effluent trough is made up of holding groove 16, effluent trough Emergency Gate 17, effluent trough energy dissipator 18, tank 19, effluent trough overflow weir 20.Holding groove 16 material is cast-in-situ reinforced concrete, form of structure is open channel, and holding groove 16 front end is connected with the high incorrect bit of semi-open type overfall 6, is positioned at below semi-open type overfall 6, for accept semi-open type overfall 6 overflow without oncomelania current, holding groove 16 tail end is connected with tank 19.Effluent trough Emergency Gate 17 is arranged in the middle part of holding groove 16, is convenient to effluent trough desilting and maintenance.Tank 19 front end connects with holding groove 16 tail end, and material is cast-in-situ reinforced concrete, and form of structure is open channel, and size is determined according to semi-open type eddy flow row spiral shell apparatus design uninterrupted.Effluent trough energy dissipator 18 is arranged on tank 19 front end, is convenient to current and tends towards stability fast, protection tank 19 structural safety, and the form of structure of effluent trough energy dissipator 18 can be common shutter board, drift plank etc.Effluent trough overflow weir 20 is arranged on tank 19 tail end, and form of structure can be triangular-notch weir, broad crested weir etc., and material according to the demand of specific constructive form, can select general steel plate or cast-in-situ reinforced concrete.
Claims (10)
1. a semi-open type eddy flow row spiral shell device, is characterized in that: comprise water inlet pipe, spiral flow device, row's screwed pipe, collection spiral shell tank and effluent trough,
Described water inlet pipe comprises water inlet pipe pressure conduit (1) and the water inlet pipe Emergency Gate (2) that is arranged in water inlet pipe pressure conduit (1) and water inlet pipe regulating gate (3), water inlet pipe regulating gate (3) is for controlling the uninterrupted being entered spiral flow device by water inlet pipe, water inlet pipe Emergency Gate (2) for pipe dredging and maintenance, before being arranged in water inlet pipe regulating gate (3);
Described spiral flow device is by water inlet (4), annular cover plate (5), semi-open type overfall (6), spiral flow cylindricality bucket (7) and spiral flow funnel (8) composition, spiral flow funnel (8) is back taper, spiral flow funnel (8) top seals with spiral flow cylindricality bucket (7) and connects, spiral flow funnel (8) bottom arranges opening, water inlet (4) is positioned at the middle and lower part of spiral flow cylindricality bucket (7), water inlet flow direction is spiral flow cylindricality bucket (7) tangential direction, annular cover plate (5) horizontal arrangement is in water inlet (4) top, annular cover plate (5) starting point is positioned at the positive top of water inlet (4), and cover water inlet (4) completely, semi-open type overfall (6) is positioned at spiral flow cylindricality bucket (7) top, semi-open type overfall (6) open height is a little more than annular cover plate (5),
Described row's screwed pipe forms by arranging screwed pipe pressure conduit (9), row's screwed pipe Emergency Gate (10) and row's screwed pipe regulating gate (11), row screwed pipe pressure conduit (9) top seals with spiral flow funnel (8) lower openings and connects, row screwed pipe Emergency Gate (10) row of being arranged on screwed pipe pressure conduit (9) front end, row's of setting screwed pipe regulating gate (11) after row's screwed pipe Emergency Gate (10);
Described collection spiral shell tank forms by collecting spiral shell tank energy dissipator (12), collection screw channel (13), Ji Luogou (14) and collection spiral shell tank overflow weir (15), collection screw channel (13) connects with row's screwed pipe, collection spiral shell tank energy dissipator (12) is arranged on collection screw channel (13) front end, Ji Luogou (14) is arranged on bottom the middle rear end of collection screw channel (13), setting direction is collection screw channel (13) cross-sectional direction, for the oncomelania of collecting precipitation, collection spiral shell tank overflow weir (15) is arranged on collection screw channel (13) tail end;
Described effluent trough is by holding groove (16), effluent trough Emergency Gate (17), effluent trough energy dissipator (18), tank (19), effluent trough overflow weir (20) forms, holding groove (16) front end is connected with semi-open type overfall (6) high incorrect bit, be positioned at semi-open type overfall (6) below, for accept that semi-open type overfall (6) overflows without oncomelania current, holding groove (16) tail end is connected with tank (19), effluent trough Emergency Gate (17) is arranged on holding groove (16) middle part, tank (19) front end connects with holding groove (16) tail end, effluent trough energy dissipator (18) is arranged on tank (19) front end, effluent trough overflow weir (20) is arranged on tank (19) tail end.
2. semi-open type eddy flow row spiral shell device as claimed in claim 1, is characterized in that: the pipeline of water inlet pipe pressure conduit (1) is imported and exported differential water pressures and is greater than the water surface and water inlet (4) water-head in spiral flow device.
3. semi-open type eddy flow row spiral shell device as claimed in claim 1, it is characterized in that: spiral flow funnel (8) diameter and spiral flow cylindricality bucket (7) equal diameters, the gradient of spiral flow funnel (8) is between 1:10 ~ 1:5.
4. semi-open type eddy flow row spiral shell device as claimed in claim 1, is characterized in that: water inlet (4) shape is rectangle, circle or oval.
5. semi-open type eddy flow row spiral shell device as claimed in claim 1, it is characterized in that: annular cover plate (5) shape is the annular between 90 ° ~ 180 °, external diameter is identical with spiral flow cylindricality bucket (7), structure is tightly connected with spiral flow cylindricality bucket (7), and annular cover plate (5) internal diameter is 75% ~ 85% of external diameter.
6. semi-open type eddy flow row spiral shell device as claimed in claim 1, it is characterized in that: semi-open type overfall (6) opening starting point is consistent with annular cover plate (5) starting point, opening angle is 90 °.
7. semi-open type eddy flow row spiral shell device as claimed in claim 1, is characterized in that: integrate screw channel (13) and tank (19) form of structure as open channel.
8. semi-open type eddy flow row spiral shell device as claimed in claim 1, is characterized in that: the form of structure of collection spiral shell tank energy dissipator (12) and effluent trough energy dissipator (18) is common shutter board or drift plank.
9. semi-open type eddy flow row spiral shell device as claimed in claim 1, is characterized in that: Ji Luogou (14) furrow width is 0.1 ~ 0.3m.
10. semi-open type eddy flow row spiral shell device as claimed in claim 1, is characterized in that: integrate spiral shell tank overflow weir (15) form of structure as triangular-notch weir or broad crested weir.
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| CN201410332494.3A CN104074175B (en) | 2014-07-14 | 2014-07-14 | A kind of semi-open type eddy flow row spiral shell device |
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| CN201410332494.3A CN104074175B (en) | 2014-07-14 | 2014-07-14 | A kind of semi-open type eddy flow row spiral shell device |
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| CN104074175B true CN104074175B (en) | 2015-09-23 |
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| CN115012371B (en) * | 2021-10-15 | 2024-01-12 | 长江水利委员会长江科学院 | Side seepage type bending spiral water-taking structure |
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| CN203939012U (en) * | 2014-07-14 | 2014-11-12 | 长江水利委员会长江科学院 | A kind of semi-open type eddy flow row spiral shell device |
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| JP3918043B2 (en) * | 1997-03-21 | 2007-05-23 | 全良 佐藤 | Sand discharge and mud drainage system method for water storage and intake dams and sand discharge and mud discharge method for water storage and intake dams |
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| CN102650123A (en) * | 2011-02-23 | 2012-08-29 | 长江水利委员会长江科学院 | Floating oncomelania blocking device with clamping grooves |
| CN203939012U (en) * | 2014-07-14 | 2014-11-12 | 长江水利委员会长江科学院 | A kind of semi-open type eddy flow row spiral shell device |
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