CN103979657A - Changeable grid used in water treatment reaction tank - Google Patents
Changeable grid used in water treatment reaction tank Download PDFInfo
- Publication number
- CN103979657A CN103979657A CN201410219650.5A CN201410219650A CN103979657A CN 103979657 A CN103979657 A CN 103979657A CN 201410219650 A CN201410219650 A CN 201410219650A CN 103979657 A CN103979657 A CN 103979657A
- Authority
- CN
- China
- Prior art keywords
- grid
- reaction tank
- variable
- water
- flow
- 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.)
- Granted
Links
Abstract
The invention belongs to the technical field of water treatment and in particular relates to a changeable grid used in a water treatment reaction tank. The changeable grid used in the water treatment reaction tank is formed by connecting a fixed grid metal frame with a changeable plastic fragment in an embedding way; in an operational process of the grid, the changeable plastic fragment can be bent downward in different degrees when water at different flows flows through holes of the grid, so that aperture of each hole of the grid is changed, and the aims of adjusting flow velocity of the water flow and turbulence intensity are realized. The changeable grid used in the water treatment reaction tank has the advantages that the aperture size of each hole of the grid can be automatically adjusted by virtue of variation of the flow, the flow velocity of the water flow is homogenized, and hydraulic power stirring strength is stabilized, so that impact load is resisted and management and operation are convenient.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of variable grid for treatment reaction pond.
Background technology
Flocculation is dosing coagulant former water after sufficiently mixing, and under flow action, micro-wadding grain is in contact with one another collision, forms the process of larger wadding grain.The structures that complete flocculation process are flocculation basin, traditionally also referred to as reaction tank.At present in water treatment practice, the reaction tank of widespread use have hydraulic reverse should with the large class of automatic reaction two, hydraulic reverse should mainly contain grid reaction pond, flap reaction tank, partition plate reaction tank, automatic reaction mainly contains automatic reaction pond.Grid reaction pond experiences years development so far from being born, and applies more and more universally, has become the main pond type of water supply industry water treatment.
Grid reaction pool process design according to being turbulent theory.Grid reaction pond is comprised of many lattice vertical shaft, and each lattice area of plane equates, in every lattice vertical shaft, some layers of grid is installed, staggered perforate up and down, stroke channels in series.When current from top to bottom, or from bottom to top when the grid, current expand after shrinking again, cause flow turbulence, form whirlpool, impel the mutual collision coalescence of particle in water, reach good flocculating effect.
The advantage of grid flocculation:
Applied widely, head loss is less, flocculating effect good, flocculation time is shorter, reduce dosage of PAC, has promoted the raising of production efficiency.
The shortcoming in grid reaction pond:
(1) be difficult to adapt to the large situation of miniature water factory and office reason fluctuations in discharge
The little water factory in cities and towns is when application grid reaction pond, because its treatment scale is less, can not guarantee to process the water yield, it processes the water yield can there is larger variation within the different periods of one day, make can produce larger difference through the flow of grid, cause the water-carrying section flow velocity of grid also can change along with fluctuations in discharge.The unsettled phenomenon of this flow velocity there are differences G value, the GT value of grid reaction pond within the different processing periods, and different hydraulic mixing conditions can not be stabilized in good scope its flocculating effect.
(2) velocity flow profile in same grid passage is inhomogeneous
The pattern of conventional mesh size uniform makes current be subject to the impact of wall effect larger, and in-channel water stream forms main flow area at region intermediate, and the larger flow velocity of flow is higher, and near the wall of limit, forms area of slack water, and flow is lower compared with minimum velocity.Flow velocity unbalanced phenomena in this same grid passage has affected flocculation efficiency and effect.
Both at home and abroad for the problems referred to above in grid reaction pond, there is scholar to propose a kind of solution that becomes aperture grid flocculating apparatus at present.Its grid that becomes in the graticule mesh of aperture is to be interweaved and process mutually by some net bars, the net bar interweaving from spare to dense from the inside to the outside, formed mesh aperture increases from inside to outside gradually, adjusts the distribution of flow and flow velocity in homogenizing passage by becoming aperture grid flocculating apparatus.But because the aperture of this change aperture grid flocculating apparatus is still changeless, its flow velocity homogenizing can only solve the problem of flow distribution inequality in grid passage, can not solve by the even problem of the processing mass flow discrepancy of grid.In actual applications, the tremendous influences to avoid fluctuations in discharge to produce flocculating effect of mechanical reaction tank can directly be selected by some small-sized water factories, but the investment in automatic reaction pond, operation, maintenance cost are higher, can not in all kinds of small-sized water factories, promote widely.
Summary of the invention
The object of the invention is to provide a kind of grid reaction pond that can meet small-sized water factory in the situation that of fluctuations in discharge, also can guarantee the variable grid of stable flocculating effect.
The variable grid for treatment reaction pond that the present invention proposes, is comprised of waffle slab 1 and reaction tank body of wall 3, and several waffle slabs 1 by supporting 2 different positionss that are fixed on reaction tank body of wall 3, form vertical multi-layer net reaction tank from top to bottom; Described every waffle slab 1 is connected and is formed fenestral fabric by the metal strip distributing in length and breadth, the grid frame 6 that the single grid hole on waffle slab 1 is rectangular configuration, and the interior symmetry of grid frame 6 is inlaid with two pairs of variable shell fragments 5; Described variable shell fragment 5 inside are resilient metal strip 7, and skin is flexiplast coating 8; Waffle slab 1 is arranged in the water stream channel 4 of reaction tank body of wall 3, in operational process, because the flow difference of current brings different shock strengths to variable shell fragment, make variable shell fragment occur different lower curved amplitudes, thereby by regulating grid hole pore size to regulate current via hole flow velocity, when great deal running water passes through grid, grid area is larger, and when low discharge current pass through grid, grid area is less, according to
v=Q/A (
vfor flow velocity, Q is flow, and A is active cross-section area), can reach the object of stablizing grid in-channel water stream flow velocity, thereby stablize G value, the GT value in the operational process of grid reaction pond and then stablize hydraulic mixing intensity, guarantee flocculating effect.
In the present invention, waffle slab 1 adopts stainless steel or plastics.
In the present invention, variable shell fragment 5 adopts flexiplast.
Beneficial effect of the present invention: by regulating mesh size homogenizing current via hole flow velocity, guarantee the stability of flocculating effect in (1) the present invention; (2) according to the variation of water flow, regulate mesh size in real time, adaptable; (3) automatically utilize different hydraulics, without machinery, participate in or manual intervention.
Accompanying drawing explanation
Fig. 1 is grid structure vertical view.
Fig. 2 is that single-row water stream channel grid is arranged diagrammatic cross-section.
Fig. 3 is that waffle slab detail structure chart shows.
Fig. 4 is variable shell fragment drawing.
Number in the figure: 1 is waffle slab, 2 for supporting, and 3 is reaction tank body of wall, and 4 is water stream channel, and 5 is variable shell fragment, and 6 is grid frame, and 7 is resilient metal strip, and 8 is flexiplast coating.
Embodiment
Below by embodiment, further illustrate by reference to the accompanying drawings the present invention.
Embodiment 1:
As shown in Figure 1, for the variable grid integral body in grid reaction pond, by waffle slab 1, reaction tank body of wall 3, formed, in grid metal sheet framework, have numerous grid holes.As shown in Figure 2, numerous waffle slabs 1, by supporting 2 different positionss that are fixed on reaction tank body of wall 3, is configured to vertical multi-layer net reaction tank to section.
Grid hole as shown in Figure 3, in single grid hole, variable plastic shrapnel 5 is embedded in the metal strip that grid distributes in length and breadth, in actual moving process, because the flow difference of current brings different shock strengths to variable plastic shrapnel, make variable plastic shrapnel occur different lower curved amplitudes, thereby by regulating grid hole size to regulate current via hole flow velocity, when great deal running water passes through grid, grid area is larger, and when low discharge current pass through grid, grid area is less, according to
v=Q/A, can reach the object of stablizing grid in-channel water stream flow velocity, thereby stablize G value, the GT value in the operational process of grid reaction pond and then stablize hydraulic mixing intensity, guarantees flocculating effect.
Waffle slab 1 can adopt stainless steel or plastic material, and layering is arranged in flocculation basin water stream channel 4.
Variable plastic shrapnel 5 symmetries are embedded in the both sides of grid frame 6, have 4 variable shell fragments 5 that are symmetric in single grid hole.
Variable shell fragment 5 inside are resilient metal strip 7, and skin is flexiplast coating 8, and when having current to pass through, the curved degree of the change of resilient metal strip 7 can be along with the size variation of water flow velocity, thereby change the size in grid aperture.
During former water process variable grid reaction tank, by water stream channel 4, enter single-row grid, current are when by waffle slab 1, can cause that variable shell fragment 5 bends, discharge is larger, and flow velocity is larger, the degree of bending is just larger, the borehole enlargement of grid hole, thus reduce flow velocity; On the contrary, when discharge reduces, 5 recoveries of variable shell fragment, the aperture of grid hole diminishes, from increasing flow velocity.Variable shell fragment 5 has weakened the impact that fluctuations in discharge causes.
Embodiment 2: certain grid flocculation following adopted tube settling, designing treatment scale is 5000m
3/ d, the flocculation basin residence time is 15min.Because the water yield often fluctuates, processing the water yield, be 5000m
3during/d, being settled out water turbidity is 3NTU; Processing the water yield, be 7000m
3during/d, being settled out water turbidity is 5NTU; After adopting variable grid of the present invention to transform, flocculating effect gets a promotion, and processing the water yield, is 5000m
3during/d, being settled out water turbidity is 2.5NTU; Processing the water yield, be 7000m
3during/d, being settled out water turbidity is 3.5NTU; Treatment effect obviously improves.
Claims (3)
1. the variable grid for treatment reaction pond, by waffle slab (1) and reaction tank body of wall (3), formed, it is characterized in that several waffle slabs (1) are fixed on the different positions of reaction tank body of wall (3) from top to bottom by supporting (2), form vertical multi-layer net reaction tank; Described every waffle slab (1) is connected and is formed fenestral fabric by the metal strip distributing in length and breadth, the grid frame (6) that single grid hole on waffle slab (1) is rectangular configuration, the interior symmetry of grid frame (6) is inlaid with two pairs of variable shell fragments (5); Described variable shell fragment (5) inside is resilient metal strip (7), and skin is flexiplast coating (8); Waffle slab (1) is arranged in the water stream channel (4) of reaction tank body of wall (3), in operational process, because the flow difference of current brings different shock strengths to variable shell fragment, make variable shell fragment occur different lower curved amplitudes, thereby by regulating grid hole pore size to regulate current via hole flow velocity, when great deal running water passes through grid, grid area is larger, and when low discharge current pass through grid, grid area is less, according to
v=Q/A,
vfor flow velocity, Q is flow, and A is active cross-section area, can reach the object of stablizing grid in-channel water stream flow velocity, thereby stablize G value, the GT value in the operational process of grid reaction pond, and then stable hydraulic mixing intensity, guarantee flocculating effect.
2. the variable grid for treatment reaction pond according to claim 1, is characterized in that waffle slab (1) adopts stainless steel or plastics.
3. the variable grid for treatment reaction pond according to claim 1, is characterized in that variable shell fragment (5) adopts flexiplast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219650.5A CN103979657B (en) | 2014-05-23 | 2014-05-23 | A kind of for the variable grid in treatment reaction pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219650.5A CN103979657B (en) | 2014-05-23 | 2014-05-23 | A kind of for the variable grid in treatment reaction pond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103979657A true CN103979657A (en) | 2014-08-13 |
| CN103979657B CN103979657B (en) | 2015-10-28 |
Family
ID=51271863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410219650.5A Expired - Fee Related CN103979657B (en) | 2014-05-23 | 2014-05-23 | A kind of for the variable grid in treatment reaction pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979657B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386788A (en) * | 2014-10-13 | 2015-03-04 | 池万青 | Vortex mixed reaction device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479008Y (en) * | 2001-01-23 | 2002-02-27 | 台州中昌水处理设备有限公司 | Continuous wave vertical corrugated plate reactor |
| CN2560635Y (en) * | 2002-07-25 | 2003-07-16 | 长春联创水务有限责任公司 | Variable aperture lattice floculating apparatus |
| CN201008763Y (en) * | 2007-03-16 | 2008-01-23 | 江苏金山环保工程有限公司 | Bucket grid flocculation device |
| CN101181673A (en) * | 2006-11-13 | 2008-05-21 | 周永生 | High-efficiency feedwater coagulating sedimentation pool |
| CN201543280U (en) * | 2009-09-29 | 2010-08-11 | 汉川市洁波净化有限公司 | ABS three-dimensional grid and flocculoreaction device applied by same |
| KR100988474B1 (en) * | 2010-06-01 | 2010-10-18 | 주식회사두합크린텍 | Flocculation basin for treatment of drinking water and wastewater |
| CN201793414U (en) * | 2010-05-18 | 2011-04-13 | 王绍文 | Local grid device with small meshes |
| CN103382043A (en) * | 2013-06-06 | 2013-11-06 | 西安建筑科技大学 | Flocculation reaction framed bent device equipped with flexibly-connected impellers |
-
2014
- 2014-05-23 CN CN201410219650.5A patent/CN103979657B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479008Y (en) * | 2001-01-23 | 2002-02-27 | 台州中昌水处理设备有限公司 | Continuous wave vertical corrugated plate reactor |
| CN2560635Y (en) * | 2002-07-25 | 2003-07-16 | 长春联创水务有限责任公司 | Variable aperture lattice floculating apparatus |
| CN101181673A (en) * | 2006-11-13 | 2008-05-21 | 周永生 | High-efficiency feedwater coagulating sedimentation pool |
| CN201008763Y (en) * | 2007-03-16 | 2008-01-23 | 江苏金山环保工程有限公司 | Bucket grid flocculation device |
| CN201543280U (en) * | 2009-09-29 | 2010-08-11 | 汉川市洁波净化有限公司 | ABS three-dimensional grid and flocculoreaction device applied by same |
| CN201793414U (en) * | 2010-05-18 | 2011-04-13 | 王绍文 | Local grid device with small meshes |
| KR100988474B1 (en) * | 2010-06-01 | 2010-10-18 | 주식회사두합크린텍 | Flocculation basin for treatment of drinking water and wastewater |
| CN103382043A (en) * | 2013-06-06 | 2013-11-06 | 西安建筑科技大学 | Flocculation reaction framed bent device equipped with flexibly-connected impellers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386788A (en) * | 2014-10-13 | 2015-03-04 | 池万青 | Vortex mixed reaction device |
| CN104386788B (en) * | 2014-10-13 | 2016-05-25 | 浙江联池水务设备有限公司 | Vortex mixed reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979657B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103979657A (en) | Changeable grid used in water treatment reaction tank | |
| CN208995185U (en) | Coagulating formula inclined tube horizontal sedimentation tank | |
| CN204295858U (en) | Defense equipment door leaf spray equipment | |
| CN202043538U (en) | Sewage discharge structure at bottom of high-density aquaculture pond | |
| CN209554853U (en) | Subsider | |
| CN103819035A (en) | Fast-separation type sewage treatment system | |
| CN205676173U (en) | A kind of scalable water leg supporting construction | |
| CN201848130U (en) | Activated sludge settling tank | |
| KR101009747B1 (en) | Non-power mixing device for vortex | |
| CN206417877U (en) | A kind of pretreatment unit of high-concentration hardly-degradable organic wastewater containing ammonia | |
| CN105617725A (en) | Inclined plate sedimentation device and sedimentation tank | |
| CN204125220U (en) | A kind of graticule mesh flocculation plant and flocculation tank | |
| CN202011775U (en) | Contact oxidation pond of suspended fillers | |
| CN207566961U (en) | Natural mixing stirring device and potassium permanganate composites | |
| CN210303064U (en) | Tubular water curtain sealing device | |
| CN103073097B (en) | Mixed reaction treatment device | |
| CN203033816U (en) | Outlet water interception device and reaction tank for sewage treatment | |
| CN108046391B (en) | Grating type flocculation settling device | |
| CN207294516U (en) | Photovoltaic integrated sewage treating apparatus | |
| CN206529330U (en) | A kind of mobile integrated sewage treatment unit | |
| CN202087093U (en) | Cage type grid reactor | |
| CN203058112U (en) | Pond culture drainage system | |
| CN104383724A (en) | Vertically arranged inclined plate sedimentation tank and operating method thereof | |
| CN204932966U (en) | A kind of distribution channel of V-type filter tank | |
| CN203437043U (en) | Salt melting device for producing saturated salt water based on softened water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20180523 |