CN202449919U - Fall-jump type thin water layer artificial wetland reoxygenation tank - Google Patents
Fall-jump type thin water layer artificial wetland reoxygenation tank Download PDFInfo
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- CN202449919U CN202449919U CN2012200689468U CN201220068946U CN202449919U CN 202449919 U CN202449919 U CN 202449919U CN 2012200689468 U CN2012200689468 U CN 2012200689468U CN 201220068946 U CN201220068946 U CN 201220068946U CN 202449919 U CN202449919 U CN 202449919U
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- reoxygenation
- diversion section
- flow deflector
- water layer
- jumping
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Abstract
The utility model discloses a fall-jump type thin water layer artificial wetland reoxygenation tank, which comprises a reoxygenation tank bed body, wherein the reoxygenation tank bed body has slope in the length direction; a plurality of flow guide plates are arranged in the reoxygenation tank bed body from a water inlet to a water outlet and are connected together end to end in sequence; the front sections of the flow guide plates are downward curved surfaces, and the rear sections of the flow guide plates are upward curved surfaces; and the front sections of the flow guide plates are higher than the rear section of the flow guide plates. The fall-jump type thin water layer artificial wetland reoxygenation tank has the advantages of simple structure, high efficiency, convenience in manufacturing and mounting, no need of increasing an external energy source, low water head loss and capability of effectively solving the problem of oxygen deficiency of an artificial wetland main body.
Description
Technical field
The utility model relates to environmental protection technology, dirty wastewater processing technology, is specifically related to a kind of thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls.
Background technology
The research that artificial swamp carries out sewage purification starts from a kind of wastewater treatment new technology that grows up the end of the seventies; Its characteristics are reduced investment, cost is low, treatment effect good, maintenance is simple and the operation convenient; It is less relatively to be fit to the water yield; Variation water quality is little, the villages and small towns WWT that level of management are not high.
The dissolved oxygen deficiency is the important factor of restriction artificial swamp processing efficiency, and dissolved oxygen is mainly secreted the oxygen that oxygen and sewage carry from atmosphere natural reaeration, root system of plant in the conventional artificial wetland.Most mikrobe all belongs to aerobic in WWT, and therefore under anoxia condition, biology can not carry out normal aerobic repiration, so sufficient dissolved oxygen is to improve the effective way of artificial swamp purification efficiency.Conventional reoxygenation technology comprises aeration aerating, drop reoxygenation and groove reoxygenation etc. in the artificial swamp.Watercourse aeration has quick, efficient, simple and easy to do characteristics, but needs to consume lot of energy; The drop reoxygenation is a kind of effective natural oxygenation mode, but needs bigger physical features drop, and is more suitable in the place with certain slope; General reoxygenation groove reoxygenation energy consumption is low, but the reoxygenation effect can not guarantee.
The utility model content
The purpose of the utility model provides a kind of thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls, and it is simple in structure, efficient, energy-conservation and cost is low, can solve problems such as prior art reoxygenation effect is low, power consumption is high, head loss is big.
The described thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls of the utility model; Comprise reoxygenation troughstand body, reoxygenation troughstand body has the gradient along its length, from the water-in to the water outlet, is provided with a plurality of flow deflectors in the said reoxygenation troughstand body; Join end to end successively together between the said flow deflector; The leading portion of said flow deflector is downward curved surface, and its back segment is curved surface upwards, and the leading portion of flow deflector is higher than back segment.
The landing edge and first diversion section before the leading portion of said flow deflector comprises; Its back segment comprises second diversion section, the 3rd diversion section and back landing edge; Said first diversion section is downward smooth surface, and second diversion section is smooth surface upwards, and the 3rd diversion section is made up of at least two folding faces that make progress; First diversion section and the 3rd diversion section are through the second diversion section smooth transition, and the front end of first diversion section is higher than the rear end of the 3rd diversion section.
The preceding landing edge overlap joint of chopped-off head flow deflector is at the water-in of reoxygenation troughstand body; The preceding landing edge of non-chopped-off head flow deflector overlaps below the back landing edge of previous stage flow deflector; The back landing edge overlap joint of final stage flow deflector prevents that at the water outlet of reoxygenation troughstand body current from leaking.
Said the 3rd diversion section is made up of the first folding face that makes progress, the second folding face and the 3rd folding face from the front end to the rear end successively, the angle of the first folding face and horizontal plane
1Be acute angle, the angle of the second folding face and horizontal plane
2Be acute angle, the angle of the 3rd folding face and horizontal plane
3Be acute angle, and α
1＞α
2＞α
3, the corner angle that adjacent two folding faces form can be strengthened flow turbulence effectively.
Further, the cross-directional length of said first diversion section is L
1, the cross-directional length sum of second diversion section and the 3rd diversion section is L
2, and L
1＞L
2
Further, the cross-directional length of said first diversion section is L
1, the cross-directional length sum of second diversion section and the 3rd diversion section is L
2, and L
1: L
2=4:1.
Further, the front end of first diversion section of said flow deflector is 0.7%～2% with respect to the gradient of the rear end of the 3rd diversion section.
Further, the said reoxygenation troughstand body gradient along its length is 0.7%～2%.
Said flow deflector and reoxygenation troughstand body are wide, and the lap length of adjacent two flow deflectors is at least 0.05m, reduce current and leak.
Said reoxygenation troughstand body is a plain concrete, carries flow deflector.Said flow deflector adopts potter's clay to fire or plastic shaping, and surface irregularity is so that cause flow turbulence.
It is following to fall the thin water layer artificial swamp reoxygenation groove natural reaeration process of the formula of jumping: sewage gets into reoxygenation troughstand body through water-in, forms about 5 ~ 20mm thickness water layer, and thin water layer gets into the chopped-off head flow deflector.Sewage descends along the smooth surface of first diversion section of flow deflector, and effluent flow rate strengthens; Afterwards, sewage leans on inertia to get into next flow deflector through second diversion section, the 3rd diversion section generation hydraulic jump of flow deflector, and a hydraulic jump takes place current in whole process, and has strengthened flow turbulence, increases current and air contact area greatly.In the reoxygenation troughstand body a plurality of flow deflectors are arranged, through hydraulic jump repeatedly, dissolved oxygen amount increases sewage gradually, reaches the reoxygenation requirement at last successively, gets into the main part of artificial swamp through water outlet.Originally falls the thin water layer artificial swamp reoxygenation groove of the formula of jumping through being provided with at interval in the wetland, reoxygenation repeatedly helps to improve denitrification effect at interval, and at utmost reduces in the wetland organic residually, prolongs work-ing life of wetland.
The beneficial effect of the utility model:
1, simple in structure, make, install all very convenient, need not to increase outside resources and head loss is less.
2, in whole reoxygenation process, after sewage gets into, only need under gravity and action of inertia, just in flow deflector, to accomplish hydraulic jump and enter into next flow deflector, need not to increase outside resources and head loss is less.In whole hydraulic jump process, sewage mainly relies on the structure of flow deflector to accomplish hydraulic jump, and is less demanding to the physical features drop of artificial swamp.In addition, the corner angle of coarse surface of flow deflector and the 3rd diversion section have also been strengthened the turbulent fluctuation of current.Thereby hydraulic jump has each time all increased the contact area of sewage and air greatly, has solved artificial swamp main body anoxybiotic problem effectively, helps the degraded of pollutent.
3, the reoxygenation groove can be provided with along the wetland flow process according to practical situation at interval; Make the artificial swamp main body present the recurrent state of aerobic-anaerobic-anoxic-aerobic-anaerobic-anoxic; Help to grow the microbial population of difference in functionality, thereby improved artificial swamp Pollutant Treatment effect.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of flow deflector.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls as shown in Figure 1 comprises reoxygenation troughstand body 1, and reoxygenation troughstand body 1 gradient along its length is 0.7%, in reoxygenation troughstand body 1, is provided with a plurality of flow deflectors 2 wide with reoxygenation troughstand body 1.Make things convenient for building operation, reoxygenation troughstand body 1 adopts plain concrete.
As shown in Figure 2, flow deflector 2 is made up of preceding landing edge 21, first diversion section 22, second diversion section 23, the 3rd diversion section and back landing edge 27 from the front end to the rear end successively.First diversion section 22 is downward smooth surface; Second diversion section 23 is smooth surface upwards; The 3rd diversion section is made up of the first folding face 24, the second folding face 25 and the 3rd folding face 26 from the front end to the rear end successively; The first folding face 24, the second folding face 25 and the 3rd folding face 26 all upwards are provided with, the angle of the first folding face 24 and horizontal plane
1Be acute angle, the angle of the second folding face 25 and horizontal plane
2Be acute angle, the angle of the 3rd folding face 26 and horizontal plane
3Be acute angle, and α
1＞α
2＞α
3First diversion section 22 and the 3rd diversion section are through second diversion section, 23 smooth transition, and the front end of first diversion section 22 is higher than the rear end of the 3rd diversion section, and the front end of first diversion section 22 is 0.7% with respect to the gradient of the rear end of the 3rd diversion section.The cross-directional length of first diversion section 22 is L
1, the cross-directional length sum of second diversion section 23 and the 3rd diversion section is L
2, and L
1: L
2=4:1.Flow deflector 2 materials adopt potter's clay to fire or plastic shaping, and surface irregularity is so that cause flow turbulence.
As shown in Figure 1; Preceding landing edge 21 overlap joints of chopped-off head flow deflector 2 are at the water-in 11 of reoxygenation troughstand body 1; The preceding landing edge 21 of non-chopped-off head flow deflector 2 overlaps below the back landing edge 27 of previous stage flow deflector 2; The lap length of adjacent two flow deflectors 2 is 0.05m, and back landing edge 27 overlap joints of final stage flow deflector 2 are at the water outlet 12 of reoxygenation troughstand body 1.
It is following to fall the thin water layer artificial swamp reoxygenation groove natural reaeration process of the formula of jumping: sewage gets into reoxygenation troughstand body 1 through water-in 11, forms about 5 ~ 20mm thickness water layer, and thin water layer gets into chopped-off head flow deflector 2.Sewage descends along the smooth surface of first diversion section 22 of flow deflector 2, and effluent flow rate strengthens; Afterwards, sewage leans on inertia to get into next flow deflector 2 through second diversion section 23, the 3rd diversion section generation hydraulic jump of flow deflector 2, and a hydraulic jump takes place current in whole process, and has strengthened flow turbulence, increases current and air contact area greatly.A plurality of flow deflectors 2 are arranged in the reoxygenation troughstand body 1, and through hydraulic jump repeatedly, dissolved oxygen amount increases sewage gradually, reaches the reoxygenation requirement at last successively, the main part that gets into artificial swamps through water outlet 12.Falls the thin water layer artificial swamp reoxygenation groove of the formula of jumping through this is set at interval in the wetland, reoxygenation repeatedly helps to improve denitrification effect at interval, and at utmost reduces in the wetland organic residually, prolongs work-ing life of wetland.
The above-mentioned gradient of falling the reoxygenation troughstand body 1 of the thin water layer artificial swamp reoxygenation groove of the formula of jumping also can be 1.3% or 2%; The front end of flow deflector 2 first diversion sections 22 also can be 1.3% or 2% with respect to the gradient of the rear end of the 3rd diversion section, generally the gradient of reoxygenation troughstand body 1 is consistent with the front end of first diversion section 22 gradient with respect to the rear end of the 3rd diversion section.The lap length of adjacent two flow deflectors 2 can increase the length of overlap joint according to concrete needs.
Claims (10)
1. one kind is fallen the thin water layer artificial swamp reoxygenation groove of the formula of jumping; Comprise reoxygenation troughstand body (1), reoxygenation troughstand body has the gradient along its length, it is characterized in that: from the water-in to the water outlet, be provided with a plurality of flow deflectors (2) in the said reoxygenation troughstand body; Join end to end successively between the said flow deflector; The leading portion of said flow deflector is downward curved surface, and its back segment is curved surface upwards, and the leading portion of flow deflector is higher than back segment.
2. the thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls according to claim 1 is characterized in that: overlap from beginning to end successively between the said flow deflector; The leading portion of said flow deflector (2) comprises preceding landing edge (21) and first diversion section (22); Its back segment comprises second diversion section (23), the 3rd diversion section and back landing edge (27); Said first diversion section is downward smooth surface, and second diversion section is smooth surface upwards, and the 3rd diversion section is made up of at least two folding faces that make progress; First diversion section and the 3rd diversion section are through the second diversion section smooth transition, and the front end of first diversion section is higher than the rear end of the 3rd diversion section.
3. the thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls according to claim 2; It is characterized in that: preceding landing edge (21) overlap joint of chopped-off head flow deflector (2) is at the water-in (11) of reoxygenation troughstand body (1); The preceding landing edge overlap joint of non-chopped-off head flow deflector is in the below of the back landing edge (27) of previous stage flow deflector, and the back landing edge overlap joint of final stage flow deflector is at the water outlet (12) of reoxygenation troughstand body.
4. according to claim 2 or the 3 described thin water layer artificial swamp reoxygenation grooves of the formula of jumping that fall; It is characterized in that: said the 3rd diversion section is made up of the first folding face (24) that makes progress, the second folding face (25) and the 3rd folding face (26) from the front end to the rear end successively, the angle of the first folding face and horizontal plane
1Be acute angle, the angle of the second folding face and horizontal plane
2Be acute angle, the angle of the 3rd folding face and horizontal plane
3Be acute angle, and α
1＞α
2＞α
3
5. according to claim 2 or the 3 described thin water layer artificial swamp reoxygenation grooves of the formula of jumping that fall, it is characterized in that: the cross-directional length of said first diversion section (22) is L
1, the cross-directional length sum of second diversion section (23) and the 3rd diversion section is L
2, and L
1＞L
2
6. the thin water layer artificial swamp reoxygenation groove of the formula of jumping that falls according to claim 5, it is characterized in that: the cross-directional length of said first diversion section (22) is L
1, the cross-directional length sum of second diversion section (23) and the 3rd diversion section is L
2, and L
1: L
2=4:1.
7. according to claim 2 or the 3 described thin water layer artificial swamp reoxygenation grooves of the formula of jumping that fall, it is characterized in that: the front end of first diversion section (22) of said flow deflector (2) is 0.7%～2% with respect to the gradient of the rear end of the 3rd diversion section.
8. according to claim 2 or the 3 described thin water layer artificial swamp reoxygenation grooves of the formula of jumping that fall, it is characterized in that: said reoxygenation troughstand body (1) gradient along its length is 0.7%～2%.
9. according to claim 2 or the 3 described thin water layer artificial swamp reoxygenation grooves of the formula of jumping that fall, it is characterized in that: said flow deflector (2) is wide with reoxygenation troughstand body (1), and the lap length of adjacent two flow deflectors (2) is at least 0.05m.
10. according to claim 2 or the 3 described thin water layer artificial swamp reoxygenation grooves of the formula of jumping that fall, it is characterized in that: said reoxygenation troughstand body (1) is a plain concrete, and said flow deflector (2) adopts potter's clay to fire or plastic shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200689468U CN202449919U (en) | 2012-02-29 | 2012-02-29 | Fall-jump type thin water layer artificial wetland reoxygenation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200689468U CN202449919U (en) | 2012-02-29 | 2012-02-29 | Fall-jump type thin water layer artificial wetland reoxygenation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202449919U true CN202449919U (en) | 2012-09-26 |
Family
ID=46865801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200689468U Expired - Lifetime CN202449919U (en) | 2012-02-29 | 2012-02-29 | Fall-jump type thin water layer artificial wetland reoxygenation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202449919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583760A (en) * | 2012-02-29 | 2012-07-18 | 重庆大学 | Drop-jump type thin-water layer constructed wetland reaeration groove |
| CN105923667A (en) * | 2016-06-17 | 2016-09-07 | 扬州大学 | Pressurizing algae control aeration device for inhibiting growth of blue-green algae in aquaculture water and control method for such device |
-
2012
- 2012-02-29 CN CN2012200689468U patent/CN202449919U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583760A (en) * | 2012-02-29 | 2012-07-18 | 重庆大学 | Drop-jump type thin-water layer constructed wetland reaeration groove |
| CN105923667A (en) * | 2016-06-17 | 2016-09-07 | 扬州大学 | Pressurizing algae control aeration device for inhibiting growth of blue-green algae in aquaculture water and control method for such device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20130417 |
|
| RGAV | Abandon patent right to avoid regrant |