CN105110507A - Self-cleaning-floatation-filtration treatment facility - Google Patents
Self-cleaning-floatation-filtration treatment facility Download PDFInfo
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- CN105110507A CN105110507A CN201510552208.9A CN201510552208A CN105110507A CN 105110507 A CN105110507 A CN 105110507A CN 201510552208 A CN201510552208 A CN 201510552208A CN 105110507 A CN105110507 A CN 105110507A
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Abstract
The invention discloses a self-cleaning-floatation-filtration treatment facility which is divided into three layers from top to bottom in the vertical direction, wherein the first layer is provided with a coagulation reaction region and a floatation region; the second layer is provided with a facility layout region and a self-cleaning water storage region; and the third layer is provided with a stable regulation region, a filtration region and a drainage region. The self-cleaning-floatation-filtration treatment facility completely implements the self-cleaning process by reasonably regulating the water inflow and water production on the basis of the hardware configuration, can complete the technical process of coagulation, floatation, filtration, stable disinfection and the like in one facility, and can overcome the defects of complex structure, large occupied area, complex automatic control configuration, low reliability, high operating maintenance cost and the like, thereby implementing the advantages of integrated structure, small occupied area, simple automatic control configuration, high reliability and low operating maintenance cost.
Description
Technical field
The present invention relates to water-treatment technology field, particularly, relate to a kind of self-stip and float drainage treatment facility.
Background technology
In engineering of water treatment field, coagulation, air supporting and filtration are all apply very wide water technology, and are usually used by series connection.No matter be in the Water purification engineering of earth's surface, in recycling sewage generated by making engineering, in landscape water circularly purifying process engineering, or in reverse osmosis membrane Seawater Desalination Project, coagulation, air supporting and filtration process all have application widely.But traditional coagulation, air-float technology also exist affects effluent quality fluctuation comparatively greatly, the problems such as uneven, the easy short stream of water outlet, easily heavy mud by impact load such as water quality such as water inlet suspended substance, turbidity etc.In addition, although the integrated novel process of the multiple Airfloat filtering pond combination occurred successively in recent years solves the problem of air supporting water outlet homogeneity, but better good plan is not tackled in design to the impact of the water inlet impact load such as suspended substance, turbidity, the length that adjusts filtration cycle can only be relied in operational process to guarantee stablizing of effluent quality under impact load.The connect technique of isolated operation of existing coagulation, Airfloat filtering pond combination process and coagulation, air supporting and filter tank compares that equipment configratioin requirement is higher, robot control system(RCS) is also more complicated.
Current existing Airfloat filtering pond combination process has, but is not limited to:
1. the Airfloat filtering pond technique that is combined into of coagulation, air supporting+conventional rapid filter
2. the Airfloat filtering pond technique that is combined into of coagulation, air supporting+V-type filter tank
3. the Airfloat filtering pond technique that is combined into of coagulation, air supporting+movable Hood Filter
4. the Airfloat filtering pond technique that is combined into of coagulation, air supporting+shutter filter
Existing Airfloat filtering pond technique has: the Airfloat filtering pond that the Airfloat filtering pond of traditional air supporting and conventional rapid filter combination, traditional air supporting and the Airfloat filtering pond of V-type filter tank combination, traditional air supporting and the Airfloat filtering pond of movable Hood Filter combination, traditional air supporting and shutter filter combine.Airfloat filtering pond technique is due to together with air supporting and filtration two kinds of process combination, although spatially saved occupation of land, but separately independent operating is compared separately with it, relevant supporting electric installation quantity does not reduce, automatic control system also becomes more complicated, and facility investment and operation and maintenance cost are also higher.In addition, in reply water inlet in the affecting of the water quality such as concentration of suspension and turbidity impact load, the length of adjustment filtration cycle can only be relied on to answer impact load on the impact of producing water water quality.
Defects such as realizing in process of the present invention, contriver finds at least there is complex structure in prior art, floor space is large, reliability is low, the complicated and operation expense of automatic control configuration is high.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of self-stip and float drainage treatment facility, rely on own hardware configuration Reasonable Regulation And Control water inlet and produce water and realize self-stip process completely, and coagulation, air supporting, filtration and sterilization be stable etc., and technological process can complete in a set of equipment, integrated with implementation structure, take up an area little, that reliability is high, automatic control configuration is simple and operation expense is low advantage.
For achieving the above object, the technical solution used in the present invention is: drainage treatment facility is floated in a kind of self-stip, comprises and is divided into three floor from top to bottom by vertical direction: the first layer is coagulating district, air flotation zone; The second layer is equipment layout district, self-stip storage area; Third layer is stable regulation district, filtrating area and drained zone.
Further, described coagulating district is made up of many lattice subregion; Air flotation zone is made up of the air supporting air-water contact district of centre, the flotation separation zone of both sides and air supporting catchment area;
Spoil disposal process at the bottom of coagulating district and air flotation zone: shore pipe P is set bottom coagulating district
sc1, P
sc2, P
sc3, every root shore pipe is arranged manually or/and automatic mud removing valve V
sc1, V
sc2, V
sc3, guarantee that the heavy mud in each lattice all can be discharged;
Be evenly equipped with multiple bucket bottom each disengaging zone of air flotation zone and catchment area, in each bucket, configure a perforated sludge discharge pipe P
sd1, P
sd2, P
sd3, every root perforated sludge discharge pipe is arranged manually or/and automatic mud removing valve V
sd1, V
sd2, V
sd3the spoil disposal house steward P of each air flotation zone
f1and P
f2respectively with two scum pipe P
z1and P
z2connect, and two under meter F are set respectively before access scum pipe
s1and F
s2; The shore pipe P in coagulating district
sc1, P
sc2, P
sc3access the spoil disposal house steward P of each air flotation zone nearby respectively
f1and P
f2, access point must before under meter.
Further, described self-stip storage area and filtrating area are arranged up and down, identical with the form of Conventional gravity valveless filtering pool, and immediately below air flotation zone, and by self-stip storage area and UNICOM of stable regulation district; Equipment layout district is arranged in the middle of coagulating district and stable regulation district;
Continuous filtration process: have and compress into water through water inlet manifold P straight up
0to intake through always valve V manually or automatically
0, under meter F
0, line mixer, after deceleration water distribution threeway, points of two strands the first lattice entering coagulating district 1, then order flows through the second lattice, the 3rd lattice ... and last lattice;
Dosing coagulant in line mixer, completes the mixing process of coagulating agent and water inlet; In first lattice in coagulating district 1, selectivity adds coagulant aids, and completes coagulating process under agitator effect in every lattice; Process water after coagulating enters the air-water contact district in mid-way, air flotation zone through tapering type water distribution closed conduit, do after process water fully contacts with dissolved air water and move to upwelling, on upper strata, air-water contact district again uniform divided flows to the disengaging zone of both sides, complete the clear water after mud-water separation and flow through the catchment area that water conservancy diversion inclined tube that disengaging zone region intermediate installs or swash plate, again horizontal flow collect in both sides, air flotation zone distal lower portion downwards, air supporting produces two reverse-flow pressure bend pipes that water installs on the outer side wall of pond, two catchment areas respectively to two filtrating area water distributions; The ash pit of both sides, air flotation zone distal upper is collected under the scum machine effect that scum silica frost after mud-water separation is installed by top, both sides, air flotation zone on water surface top layer, then through scum pipe P corresponding to each scum silica frost groove
z1and P
z2discharge;
And/or,
Described tapering type water distribution closed conduit, its water-carrying section is convergent on water distribution direction, guarantees that flow velocity is uniform and stable; Its canal top by equidimension rectangle cross water seam to the water distribution of air-water contact district, guarantee even water distribution and in water alumen ustum stablize.
The under meter F of water respectively on two reverse-flow pressure bend pipe water distribution standpipes is produced in air flotation zone
1and F
2, automatic regulating valve V on water distribution transverse tube
c1and V
c2, two-position three way automatic switch valve V
a1and V
a2after after two siphon bends, enter two filtrating areas again, intake after being slowed down by overboard baffle plate, filtration procedure is completed again through filter material layer and supporting layer and water distribution base plate, filter and produce water and be introduced into self-stip water distributing area below water distribution base plate, cross water channel through triangle and enter self-stip storage area above filtrating area, then store through the stable regulation district that overflow weir drop enters side, filtrating area next-door neighbour; If necessary, can at overflow weir drop place design sterilizing agent toss area, after drop mixing effect, water after filter is carried out disinfection stabilizing treatment; Uniform filter on water distribution base plate, meets the homogeneity of water distribution, and plays certain supporting role to filter material layer and supporting layer; Above the base plate of each self-stip water distributing area, emptying pipe P is set respectively
sf1and P
sf2, each emptying pipe is furnished with manually-operated gate V
sf1and V
sf2, emptying tube opening divides the draining emptying district being located at correspondence.
And/or,
Described reverse-flow pressure bend pipe is made up of water distribution standpipe, under meter, water distribution transverse tube, automatic regulating valve door and two-position three way automatic switch valve.
Further, described drained zone is made up of the drain water seal district of centre and the draining emptying district of both sides;
Automatic self-cleaning process: the water level in filtrating area because filter material layer constantly retains suspended substance, causes the increase of filter material layer resistance in continuous filtration process, impels the water level in siphon bend constantly to raise; When water level reaches the auxiliary siphon tube mouth of pipe, the water inlet of Partial filtration district falls formation air-extraction function automatically from this auxiliary siphon tube, so as to taking away the air in siphon bend, forms vacuum gradually in siphon bend; When the vacuum tightness in siphon bend reaches certain value, just syphonic effect occurs, the filtration in self-stip storage area produces water from bottom to up back through filter material layer and supporting layer, and carry out automatic backwash to filtrate, self-stip process starts automatically; Whole waters of the waste water that self-stip process produces and air flotation zone, enter self-stip soil stack through siphon bend, after entering drain water seal district, overflow is arranged to the emptying district of both sides again; The local pipeline section of siphon bend and self-stip soil stack is provided with transparent tube, water level conditions in field observation pipe; When the water level decreasing of self-stip storage area is to the effect water level of siphon destructive device, air enters siphon bend through siphon destructive device, and vacuum environment and syphonic effect are destroyed, and self-stip process stops automatically; Automatic self-cleaning process completes, and system enters into the next work period; Two self-stip soil stack ends, drain water seal districts design above flood level and install valve V manually or automatically again
m1and V
m2, by the adjustment of its valve seat opening in order to control back washing strength;
Force self-stip process: as pressure back flushing need be carried out to the filtrate of filtrating area, the two-position three way automatic switch valve V on the reverse-flow pressure bend pipe water distribution transverse tube that first artificial involved switching is corresponding
a1or V
a2to the second valve position, controlling air flotation zone water outlet and all to enter in self-stip soil stack and to fall formation air-extraction function with full-section pipe-flow form, so as to taking away the air in siphon bend, in siphon bend, forming vacuum gradually; When the vacuum tightness in siphon bend reaches certain value, just syphonic effect occurs, after the filter in self-stip storage area, water is from bottom to up back through filter material layer and supporting layer, carries out pressure back flushing to filtrate, and self-stip process is forced to start; Establish liquidometer L in self-stip storage area, a certain low level-set point after force start self-stip process, control V through automatic linkage
a1or V
a2return to the first valve position; The waste water that self-stip process produces, enter self-stip soil stack through siphon bend, after entering drain water seal district, overflow is arranged to the emptying district of both sides again; When the water level decreasing of self-stip storage area is to siphon destructive device effect water level, air enters siphon bend through siphon destructive device, and the vacuum environment in siphon bend and syphonic effect are destroyed, and self-stip process stops automatically; Force self-stip process to complete, system enters into the next work period; Install manually or/and automatic regulating valve door V above two self-stip soil stack ends, drain water seal district design flood level
m1and V
m2, by the adjustment of its valve seat opening in order to coordinate force start self-stip process and to control back washing strength, guarantee that whole waters of air flotation zone fall with full-section pipe-flow form from this standpipe.
And/or,
Described self-stip soil stack is by soil stack with manually or/and automatic regulating valve door forms.
Drainage treatment facility is floated in the self-stip of various embodiments of the present invention, is divided into three floor owing to comprising from top to bottom by vertical direction: the first layer is coagulating district, air flotation zone; The second layer is equipment layout district, self-stip storage area; Third layer is stable regulation district, filtrating area and drained zone; Thus complex structure in prior art can be overcome, take up an area large, that automatic control configuration is complicated, reliability is low and maintenance cost is high defect, integrated with implementation structure, take up an area little, that automatic control configuration is simple, reliability is high and maintenance cost is low advantage.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification sheets, or understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the external perspective structural representation that drainage treatment facility is floated in self-stip of the present invention;
Fig. 2 is the vertical view that drainage treatment facility is floated in self-stip of the present invention;
Fig. 3 is the front view that drainage treatment facility is floated in self-stip of the present invention;
Fig. 4 is the left view that drainage treatment facility is floated in self-stip of the present invention;
Fig. 5 is the right view that drainage treatment facility is floated in self-stip of the present invention;
Fig. 6 is the A-A view of Fig. 2;
Fig. 7 is the B-B view of Fig. 6;
Fig. 8 is the C-C view of Fig. 6.
By reference to the accompanying drawings, in the embodiment of the present invention, Reference numeral is as follows:
1-coagulating district; 2-air flotation zone; 3-equipment layout district; 4-self-stip storage area; 5-stable regulation district; 6-filtrating area; 7-drained zone; 8-line mixer; 9-deceleration water distribution threeway; The tapering type water distribution closed conduit of 10-; 11-water conservancy diversion inclined tube or swash plate; The reverse-flow pressure bend pipe of 12-; 13-siphon bend; The overboard baffle plate of 14-; 15-filter material layer and supporting layer; 16-water distribution base plate; 17-triangle crosses water channel; 18-auxiliary siphon tube; 19-siphon destructive device; 20-self-stip soil stack.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
According to the embodiment of the present invention, as Figure 1-Figure 8, provide a kind of self-stip and float drainage treatment facility.
Now coagulation, airfloat equipment and gravity valveless filter filter plant are coupled into a kind of self-stip and float drainage treatment facility.Each function division such as coagulating, air supporting, filtration, product water storage, discharge of wastewater of this equipment had both independently separated, and became an organic whole again by rational water distribution system nature UNICOM.The support equipment that this equipment is auxiliary and each function division are integrated and are arranged, greatly reduce the construction investment of piping system and power distribution system, are also convenient to maintenance management; Set up in air flotation zone water conservancy diversion inclined tube or swash plate to process water play the same Cheng Zuoyong of cocurrent flow, air supporting precipitation altogether effect carry out mud-water separation, while avoiding occurring producing water non-uniform phenomenon, also can improve system capacity of resisting impact load, strengthening mud-water separation effect, optimize air supporting product water water quality, extend filtration cycle; Air flotation zone adopts reverse-flow pressure bend pipe constant flow uniform water distribution to filtrating area, not only guaranteed that the permanent water level of air flotation zone runs, but also can avoid the risk that in self-stip process, siphon condition is destroyed; Retain gravity valveless filter gravity backwash function, save the setting forcing rinser and aux. pressure water system, the air flotation zone of this equipment itself is utilized to produce water, switched by the valve position of two-position three way automatic switch valve on reverse-flow pressure bend pipe water distribution transverse tube, overboard in filtrating area self-stip soil stack, bleed, valve position on soil stack is coordinated to control, realize the function of force start self-stip process, also can give flexible control to backwash intensity, siphon piping system is also simplified.
This device layout is compact, Appropriate application space, saves and takes up an area; By producing the optimization of water water quality to air supporting process, extend the work period of filtration procedure; The water distribution point of rational allocation air flotation zone to filtrating area, by original for gravity valveless filter siphon pipeline system simplification, realizes the complete self-stip process to filtrating area; The configuration of equipment, instrument and automatic control system is simple, investment and operation expense low.This equipment can in water treatment field wide popularization and application such as earth's surface Water purification, recycling sewage generated by making, landscape water circularly purifying, seawater desalinization pretreatment.
The functional zone such as coagulating, air supporting, filtration, self-stip water storage, stable regulation, discharge of wastewater and supporting equipment layout district are coupled into a kind of self-stip and float drainage treatment facility by the present invention.Although each function division is independent but the connecting portion in each district realizes nature conversion by different water distribution forms; Increase water conservancy diversion inclined tube or swash plate setting in air flotation zone, the cocurrent flow realizing air supporting process evenly produces water with journey and plays auxiliary shallow layer precipitating effect to product water; Air flotation zone adopts reverse-flow pressure bend pipe constant flow water distribution form to filtrating area, water distribution standpipe arranges under meter, transverse tube arranges automatic regulating valve, by the constant water outlet in PID regulable control air flotation zone, the permanent liquid level of the constant water inlet in filtrating area and indirect control air flotation zone; By switching the two-position three way automatic switch valve valve position on reverse-flow pressure bend pipe water distribution transverse tube, adjustment air flotation zone is to the different water distribution points of filtrating area, coordinating auxiliary siphon tube and siphon destructive device again, forcing rinser and aux. pressure water system just can realize automatic self-cleaning and artificial dual purpose of forcing self-stip without the need to arranging; Self-stip process relies on the gravity head effect of self-stip storage area to complete, without the need to arranging relevant flushing water pump; Stable regulation district both can be used as the intermediate regulations pond of filtering and producing water, also can be used as disinfection pool; The space of stable regulation district and centre, coagulating district, can arrange relevant support equipment (water circulating pump, air compressor machine, dissolved air water tank, low-voltage distribution and housing etc.), this equipment each several part is combined more compact, reasonable.
The present invention relates to a kind of self-stip and float drainage treatment facility, these structures can divide three floor from top to bottom by vertical direction: the first layer is coagulating district 1, air flotation zone 2; The second layer is equipment layout district 3, self-stip storage area 4; Third layer is stable regulation district 5, filtrating area 6 and drained zone 7.Wherein, air flotation zone is made up of (air supporting) air-water contact district of centre, (air supporting) disengaging zone of both sides and (air supporting) catchment area; Self-stip storage area and filtrating area are arranged up and down, identical with the form of Conventional gravity valveless filtering pool; Drained zone is made up of (draining) water seal district of centre and (draining) emptying district of both sides.
Continuous filtration process (normal operating condition): have and compress into water through water inlet manifold P straight up
0to intake through always valve V manually or automatically
0, under meter F
0, line mixer 8, after deceleration water distribution threeway 9, points of two strands the first lattice entering coagulating district 1, then order flows through the second lattice, the 3rd lattice ... and last lattice.Dosing coagulant in line mixer 8, completes the mixing process of coagulating agent and water inlet; In first lattice in coagulating district 1, selectivity adds coagulant aids, and completes coagulating process under agitator effect in every lattice.Process water after coagulating enters the air-water contact district in mid-way, air flotation zone through tapering type water distribution closed conduit 10, do after process water fully contacts with dissolved air water and move to upwelling, on upper strata, air-water contact district again uniform divided flows to the disengaging zone of both sides, complete the clear water after mud-water separation and flow through the catchment area that water conservancy diversion inclined tube that disengaging zone region intermediate installs or swash plate 11, again horizontal flow collect in both sides, air flotation zone distal lower portion downwards, air supporting produces two reverse-flow pressure bend pipes 12 that water installs on the outer side wall of pond, two catchment areas respectively to two filtrating area water distributions; The ash pit of both sides, air flotation zone distal upper is collected under the scum machine effect that scum silica frost after mud-water separation is installed by top, both sides, air flotation zone on water surface top layer, then through scum pipe P corresponding to each scum silica frost groove
z1and P
z2discharge.The under meter F of water respectively on two reverse-flow pressure bend pipe 12 water distribution standpipes is produced in air flotation zone
1and F
2, automatic regulating valve V on water distribution transverse tube
c1and V
c2, two-position three way automatic switch valve V
a1and V
a2after after two siphon bends 13, enter two filtrating areas 6 again, after water inlet is slowed down by overboard baffle plate 14, filtration procedure is completed again through filter material layer and supporting layer 15 and water distribution base plate 16, filter and produce water and be introduced into self-stip water distributing area below water distribution base plate 16, cross water channel 17 through triangle and enter self-stip storage area 4 above filtrating area 6, then store through the stable regulation district 5 that overflow weir drop enters side, filtrating area 6 next-door neighbour; Uniform filter on water distribution base plate, meets the homogeneity of water distribution, and plays certain supporting role to filter material layer and supporting layer.Above the base plate of each self-stip water distributing area, emptying pipe P is set respectively
sf1and P
sf2, each emptying pipe is furnished with manually-operated gate V
sf1and V
sf2, emptying tube opening divides the draining emptying district being located at correspondence.
Automatic self-cleaning process (filtrating area automatic back-washing state): the water level in a certain filtrating area 6 because filter material layer constantly retains suspended substance, causes the increase of filter material layer resistance in continuous filtration process, impels the water level in siphon bend 13 constantly to raise; When water level reaches auxiliary siphon tube 18 mouth of pipe, the water inlet of Partial filtration district falls formation air-extraction function automatically from this auxiliary siphon tube, so as to taking away the air in siphon bend, forms vacuum gradually in siphon bend; When the vacuum tightness in siphon bend reaches certain value, just syphonic effect occurs, the filtration in self-stip storage area 4 produces water from bottom to up back through filter material layer and supporting layer 15, and carry out automatic backwash to filtrate, self-stip process starts automatically; Whole waters of the waste water that self-stip process produces and air flotation zone, enter self-stip soil stack 20 through siphon bend 13, after entering drain water seal district, overflow is arranged to the emptying district of both sides again; The local pipeline section of siphon bend and self-stip soil stack is provided with transparent tube, can water level conditions in field observation pipe; When the water level decreasing of self-stip storage area is to the effect water level of siphon destructive device 19, air enters siphon bend through siphon destructive device, and vacuum environment and syphonic effect are destroyed, and self-stip process stops automatically; Automatic self-cleaning process completes, and system enters into the next work period.Two self-stip soil stack ends, drain water seal districts design above flood level and install manually or/and automatic regulating valve door V again
m1and V
m2, by the adjustment of its valve seat opening in order to coordinate force start self-stip process and to control certain back washing strength.
Force self-stip process (the manual backwash in filtrating area state): as pressure back flushing need be carried out to the filtrate of a certain filtrating area 6, the two-position three way automatic switch valve V on the reverse-flow pressure bend pipe 12 water distribution transverse tube that first artificial involved switching is corresponding
a1or V
a2to the second valve position, controlling air flotation zone water outlet and all to enter in self-stip soil stack 20 and to fall formation air-extraction function with full-section pipe-flow form, so as to taking away the air in siphon bend, in siphon bend, forming vacuum gradually; When the vacuum tightness in siphon bend reaches certain value, just syphonic effect occurs, after the filter in self-stip storage area 4, water is from bottom to up back through filter material layer and supporting layer 15, carries out pressure back flushing to filtrate, and self-stip process is forced to start; Establish liquidometer L in self-stip storage area, a certain low level-set point (note: this setting point forbids the effect water level lower than siphon destructive device) after force start self-stip process, control V through automatic linkage
a1or V
a2return to the first valve position; The waste water that self-stip process produces, enter self-stip soil stack 20 through siphon bend 13, after entering drain water seal district, overflow is arranged to the emptying district of both sides again; When the water level decreasing of self-stip storage area acts on water level to siphon destructive device 19, air enters siphon bend through siphon destructive device, and the vacuum environment in siphon bend and syphonic effect are destroyed, and self-stip process stops automatically; Force self-stip process to complete, system enters into the next work period.Two self-stip soil stack ends, drain water seal districts design above flood level and install manually or/and automatic regulating valve door V
m1and V
m2, by the adjustment of its valve seat opening in order to coordinate force start self-stip process and to control certain back washing strength, also can guarantee that whole waters of air flotation zone fall with full-section pipe-flow form from this standpipe.Cheng Qian is crossed in certain filtrating area self-stip of force start, and the liquid level need proofreading self-stip storage area should be in higher position, otherwise cannot ensure enough self-stip heads and scavenging period, should not start and force self-stip process.
Spoil disposal process (spoil disposal state) at the bottom of coagulating district and air flotation zone: shore pipe P is set bottom coagulating district 1
sc1, P
sc2, P
sc3, every root shore pipe is arranged manually or/and automatic mud removing valve V
sc1, V
sc2, V
sc3, guarantee that the heavy mud in each lattice all can be discharged.Be evenly equipped with multiple bucket bottom each disengaging zone of air flotation zone 2 and catchment area, in each bucket, configure a perforated sludge discharge pipe P
sd1, P
sd2, P
sd3, every root perforated sludge discharge pipe is arranged manually or/and automatic mud removing valve V
sd1, V
sd2, V
sd3The spoil disposal house steward P of each air flotation zone
f1and P
f2respectively with two scum pipe P
z1and P
z2connect, and two under meter F are set respectively before access scum pipe
s1and F
s2; The shore pipe P in coagulating district
sc1, P
sc2, P
sc3access the spoil disposal house steward P of each air flotation zone nearby respectively
f1and P
f2, access point must before under meter.Under normal operating condition, above-mentioned each mud valve needs the regular short period of time to open spoil disposal; Meanwhile, each shore pipe and mud valve also have the emptying effect to coagulating district and air flotation zone concurrently.
With unit cleared-out power 12000m
3drainage treatment facility working drawing is floated in the self-stip of/d and Fig. 1-Fig. 8 is that example is explained in detail, illustrates.
The major equipment design variable of the protection point one of technical solution of the present invention:
(1) unit design cleared-out power should not be greater than 12000m
3/ d, design maximum flooding quantity designs the 104%-107% of cleared-out power for unit.
(2) unit coagulating district hydraulic detention time is about 15min.The first lattice design water inlet flow velocity in coagulating district is about 0.7-0.8m/s.
(3) coagulating district to air flotation zone adopts tapering type water distribution closed conduit and UNICOM of air-water contact district, flow velocity 0.08-0.10m/s in design canal.And water distribution closed conduit water-carrying section convergent on water distribution direction, guarantee that flow velocity is uniform and stable.
(4) the equal establishing water seam in tapering type water distribution closed conduit top, designed seam flow velocity 0.08-0.10m/s, design seam is long wide identical with tapering type water distribution closed conduit, stitches wide≤50mm.And water stitches as equidimension rectangle guarantees that the alumen ustum formed in even water distribution, process water is stablized excessively.
(5) be air-water contact district in the middle of air flotation zone, design upflow velocity is 0.01-0.02m/s, respectively to two even plug-flow water distributions in disengaging zone above air-water contact district.
(6) design surface load in unit flotation separation zone is 15-20m
3/ m
2h, divides 2 lattice in the longitudinal direction, divides and is located at both sides, air-water contact district.
(7) every uniform water conservancy diversion inclined tube in mid-way, lattice flotation separation zone or swash plate, inclined tube or swash plate mounted angle 60 degree, mounting height is about 0.9m, and vergence direction points to catchment area.
(8) unit filtrating area design filtering velocity≤10m/h, point 2 lattice on elongatedness direction.The total long-width ratio in filtrating area is about 2:1, and single lattice long-width ratio is about 1:1.
(9) air flotation zone to filtrating area adopts the water distribution of reverse-flow pressure bend pipe, air flotation zone lattice and filtrating area lattice one_to_one corresponding, and design water distribution flow velocity is about 0.9-1.0m/s.And reverse-flow pressure bend pipe is made up of water distribution standpipe, under meter, water distribution transverse tube, automatic regulating valve door and two-position three way automatic switch valve.
(10) the every lattice in filtrating area configure a siphon bend, and self-stip design maximum flow velocity is about 2.4-2.5m/s; The every lattice in filtrating area configure a self-stip soil stack, design overboard flow velocity and are about 3.0-3.1m/s.And self-stip soil stack is by soil stack with manually or/and automatic regulating valve door forms.
(11) uniform filter, the water distribution of employing filter on filtrating area water distribution base plate, filter gap area is about 1%-2.5% with filtration area ratio.
(12) filtrating area adopts gravity backwash mode, and final head loss is about 1.7-2.0m; Filtrate rate of expansion about 50%; 15L/m is about at average backwash rate
2under the condition of s, flush time is about 5-8min.
(13) supporting layer thickness 50-100mm, grain size 2-4mm.
(14) homogeneous filtering material quartz sand particle size 0.5-1.0mm, floor height 0.9-1.0m, nonuniformity coefficient K
80<2.0.Double-layer filter material quartz sand particle size 0.5-1.0mm, lower floor quartz sand floor height 0.6m, nonuniformity coefficient K
80<2.0; Anthracite granule size 1.2-1.6mm, lower floor hard coal floor height 0.3-0.4m, nonuniformity coefficient K
80<2.0.
(15) be water seal district in the middle of drained zone, both sides are emptying district; Water seal district design flood level is about 0.2m; Each emptying district establishes an outer comb, and outer comb design current velocity is about 0.7-0.8m/s.
(16) stable regulation district hydraulic detention time is about 30min, and in establish flow deflector or partition wall, prevent short flow phenomenon from occurring; The design form of flow deflector or partition wall must consider the supporting role to stable regulation district top board.
(17) water outlet form in stable regulation district can require to select according to equipment flowsheet: 1. adopt the water outlet of overflow gravity; 2. water pump suction pressurization water outlet is adopted.
(18) equipment layout district overhead clearance should not be less than 2.0m, and should meet the requirement of equipment installation and running maintenance.
Two device control of the protection point of technical solution of the present invention and operation method:
(1) under meter F is installed on the water inlet manifold in coagulating district
0, show total flooding velocity Q
0; Under meter F installed by the total shore pipe in air flotation zone
s1and F
s2, show total spoil disposal flow and be respectively Q
s1and Q
s2.Participate in the automatic control that the permanent liquid level operation in air flotation zone, constant flow water outlet and filtrating area constant flow are intake.
(2) the water distribution standpipe of two of air flotation zone to filtrating area reverse-flow pressure bend pipes installs under meter F respectively
1and F
2, display distributed water flow is respectively Q
1and Q
2; Automatic regulating valve V installed respectively by water distribution transverse tube
c1, V
c2with two-position three way automatic switch valve V
a1, V
a2.Participate in the automatic control that the permanent liquid level operation in air flotation zone, constant flow water outlet and filtrating area constant flow are intake.
(3) the total flooding velocity Q of coagulating Qu
0, air flotation zone is respectively Q to two lattice distributed water flows of filtrating area
1and Q
2, the total spoil disposal flow in coagulating district and air flotation zone is respectively Q
s1and Q
s2.Under normal running (operation) conditions, by PID regulable control V
c1and V
c2aperture, make Q
1=Q
2=0.5 [Q
0-(Q
s1+ Q
s2)-δ], wherein δ is that row's scum silica frost total amount of calculating through theory according to the water inlet parameter such as concentration of suspension, chemical feeding quantity and actual motion are arranged after scum silica frost total amount empirical parameter contrasts and optimized the value determined, all flux units are identical.
(4) by two-position three way automatic switch valve V on the water distribution transverse tube of the reverse-flow pressure bend pipe of artificial involved switching
a1or V
a2to the second valve position, control air flotation zone water outlet all enter overboard in self-stip soil stack, bleed, the self-stip process of force start filtrating area; Establish liquidometer L in self-stip storage area, a certain low level-set point after force start self-stip process, control V through automatic linkage
a1or V
a2return to the first valve position, for the next cycle of operation prepares.
(5) self-stip soil stack end is installed manually or/and automatic regulating valve door V
m1and V
m2, by controlling the aperture of this manually-operated gate in order to 1. to coordinate force start self-stip process; 2. self-stip intensity is regulated; 3. guarantee that filtrating area solid flooding is overboard from self-stip soil stack with full-section pipe-flow form, bleed, vacuum action is formed to siphon bend.
The advantage of technical solution of the present invention is derived by inference mode:
(1) coagulating district adopts water-carrying section tapering type water distribution closed conduit 10 to air flotation zone water distribution, the equal establishing water seam in canal top, has not only met the homogeneity of water distribution, but also has met suitable water distribution flow velocity, guarantees the stability of alumen ustum.
(2) the setting increasing water conservancy diversion inclined tube or swash plate 11 at flotation separation zone region intermediate both can guarantee air supporting process process water the same Cheng Zuoyong of cocurrent flow, prevent air supporting from producing the short stream of water, again water is produced to air supporting and plays the auxiliary effect of shallow layer precipitating in the same way, in air supporting with improve capacity of resisting impact load under precipitating dual mud-water separation effect, optimize and produce water water quality.
(3) the lattice of Appropriate application flotation separation zone completes the two lattice uniform water distributions to filtrating area.
(4) air flotation zone adopts the water distribution continuously of reverse-flow pressure bend pipe 12 to filtrating area, both can guarantee air flotation zone level stability, can effectively avoid again the siphon condition in filtrating area self-stip process to be destroyed.
(5) on the water distribution standpipe of reverse-flow pressure bend pipe 12, under meter is installed, the working conditions that under meter is good can be guaranteed; The automatically controlled valve that the water distribution transverse tube of reverse-flow pressure bend pipe 12 is installed can according to flow feedback signal, and the water flow being controlled air flotation zone by PID modification stability is constant, indirectly controls the operation constant liquid level of air flotation zone; Two-position three way automatic switch valve installed by the water distribution transverse tube of reverse-flow pressure bend pipe 12, can guarantee that air supporting outlet pipeline remains unobstructed, the full water overflow risk avoiding air flotation zone freely not caused by water outlet.
Artificial get involved air flotation zone water outlet forced be incorporated into overboard in the self-stip soil stack 20 of filtrating area, bleed, forced back washing is carried out to filter tank, the setting of supporting pressure rinser and aux. pressure water system can be saved.
(7) overflow water outlet in self-stip storage area is directly dropped and is entered stable regulation district, saves relevant connection pipeline; This drop region can be used as the toss area of sterilizing agent, is conducive to mixing and disinfection reactions process.
(8), compared with designing with Conventional gravity formula valveless filtering pool drained zone, the self-stip draining of this equipment is by the emptying district of the water seal district overflow in the middle of drained zone to both sides, and the change of water seal district design flood level is less, and emptying district drain pipe diameter is less.
(9) the design maximum caliber of this coordinative composition of equipments tubing system is DN600.In highly corrosive engineering of water treatment field, as the water treatment field such as purifying treatment, trade effluent regeneration of reverse osmosis membrane seawater desalinization pretreatment, seawater or bittern, the pipeline of UPVC material all can be adopted to design, play larger technology, economic advantages.
(10) this equipment Appropriate application space; Support equipment is simple, compact in design; Save and take up an area and construction investment; Be convenient to maintenance management; Running cost is low.
(11) although automatic control system (comprising: under meter, automatic valve, the liquidometer etc.) configuration of this equipment is simple, but by with siphon piping system (comprising: siphon bend 13, auxiliary siphon tube 18, siphon destructive device 19, self-stip soil stack 20 etc.) ingenious fusion, make this equipment be provided with the feature of " robot control system(RCS) configuration is simple, level of automation is higher ", can unmanned be realized.
For technical scheme of the present invention, whether also have other replacement scheme can complete goal of the invention equally?
(1) air flotation zone can substitute with two auto-switch two-position valves to the two-position three way automatic switch valve on filtrating area water distribution transverse tube.
(2) the total water intaking valve of coagulating Qu both can adopt manually-operated gate, also can adopt automatic valve.
(3) the mud valve of coagulating district and air flotation zone both can adopt manually-operated gate, also can adopt automatic valve.If employing automatic valve, fast-open type valve must be used.
(4) the automatic valve adopted in this equipment can be electrically operated valve, also can be operated pneumatic valve.
(5) the liquidometer installed in self-stip storage area also can replace with liquid level switch.
System UPVC material pipeline can replace with other material pipelines, as stainless steel pipeline, glass steel material pipeline, PE material pipeline etc.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a drainage treatment facility is floated in self-stip, it is characterized in that, comprises and is divided into three floor from top to bottom by vertical direction: the first layer is coagulating district, air flotation zone; The second layer is equipment layout district, self-stip storage area; Third layer is stable regulation district, filtrating area and drained zone.
2. drainage treatment facility is floated in self-stip according to claim 1, it is characterized in that, described coagulating district is made up of many lattice subregion; Air flotation zone is made up of the air supporting air-water contact district of centre, the flotation separation zone of both sides and air supporting catchment area;
Spoil disposal process at the bottom of coagulating district and air flotation zone: shore pipe P is set bottom coagulating district
sc1, P
sc2, P
sc3, every root shore pipe is arranged manually or/and automatic mud removing valve V
sc1, V
sc2, V
sc3, guarantee that the heavy mud in each lattice all can be discharged;
Be evenly equipped with multiple bucket bottom each disengaging zone of air flotation zone and catchment area, in each bucket, configure a perforated sludge discharge pipe P
sd1, P
sd2, P
sd3, every root perforated sludge discharge pipe is arranged manually or/and automatic mud removing valve V
sd1, V
sd2, V
sd3the spoil disposal house steward P of each air flotation zone
f1and P
f2respectively with two scum pipe P
z1and P
z2connect, and two under meter F are set respectively before access scum pipe
s1and F
s2; The shore pipe P in coagulating district
sc1, P
sc2, P
sc3access the spoil disposal house steward P of each air flotation zone nearby respectively
f1and P
f2, access point must before under meter.
3. drainage treatment facility is floated in the self-stip according to claim 1 or-2 any one, it is characterized in that, described self-stip storage area and filtrating area are arranged up and down, identical with the form of Conventional gravity valveless filtering pool, and immediately below air flotation zone, and by self-stip storage area and UNICOM of stable regulation district; Equipment layout district is arranged in the middle of coagulating district and stable regulation district;
Continuous filtration process: have and compress into water through water inlet manifold P straight up
0to intake through always valve V manually or automatically
0, under meter F
0, line mixer, after deceleration water distribution threeway, points of two strands the first lattice entering coagulating district 1, then order flows through the second lattice, the 3rd lattice ... and last lattice;
Dosing coagulant in line mixer, completes the mixing process of coagulating agent and water inlet; In first lattice in coagulating district 1, selectivity adds coagulant aids, and completes coagulating process under agitator effect in every lattice; Process water after coagulating enters the air-water contact district in mid-way, air flotation zone through tapering type water distribution closed conduit, do after process water fully contacts with dissolved air water and move to upwelling, on upper strata, air-water contact district again uniform divided flows to the disengaging zone of both sides, complete the clear water after mud-water separation and flow through the catchment area that water conservancy diversion inclined tube that disengaging zone region intermediate installs or swash plate, again horizontal flow collect in both sides, air flotation zone distal lower portion downwards, air supporting produces two reverse-flow pressure bend pipes that water installs on the outer side wall of pond, two catchment areas respectively to two filtrating area water distributions; The ash pit of both sides, air flotation zone distal upper is collected under the scum machine effect that scum silica frost after mud-water separation is installed by top, both sides, air flotation zone on water surface top layer, then through scum pipe P corresponding to each scum silica frost groove
z1and P
z2discharge;
And/or,
Described tapering type water distribution closed conduit, its water-carrying section is convergent on water distribution direction, guarantees that flow velocity is uniform and stable; Its canal top by equidimension rectangle cross water seam to the water distribution of air-water contact district, guarantee even water distribution and in water alumen ustum stablize;
The under meter F of water respectively on two reverse-flow pressure bend pipe water distribution standpipes is produced in air flotation zone
1and F
2, automatic regulating valve V on water distribution transverse tube
c1and V
c2, two-position three way automatic switch valve V
a1and V
a2after after two siphon bends, enter two filtrating areas again, intake after being slowed down by overboard baffle plate, filtration procedure is completed again through filter material layer and supporting layer and water distribution base plate, filter and produce water and be introduced into self-stip water distributing area below water distribution base plate, cross water channel through triangle and enter self-stip storage area above filtrating area, then store through the stable regulation district that overflow weir drop enters side, filtrating area next-door neighbour; If necessary, can at overflow weir drop place design sterilizing agent toss area, after drop mixing effect, water after filter is carried out disinfection stabilizing treatment; Uniform filter on water distribution base plate, meets the homogeneity of water distribution, and plays certain supporting role to filter material layer and supporting layer; Above the base plate of each self-stip water distributing area, emptying pipe P is set respectively
sf1and P
sf2, each emptying pipe is furnished with manually-operated gate V
sf1and V
sf2, emptying tube opening divides the draining emptying district being located at correspondence.
And/or,
Described reverse-flow pressure bend pipe is made up of water distribution standpipe, under meter, water distribution transverse tube, automatic regulating valve door and two-position three way automatic switch valve.
4. drainage treatment facility is floated in the self-stip according to claim 1-3 any one, it is characterized in that, described drained zone is made up of the drain water seal district of centre and the draining emptying district of both sides;
Automatic self-cleaning process: the water level in filtrating area because filter material layer constantly retains suspended substance, causes the increase of filter material layer resistance in continuous filtration process, impels the water level in siphon bend constantly to raise; When water level reaches the auxiliary siphon tube mouth of pipe, the water inlet of Partial filtration district falls formation air-extraction function automatically from this auxiliary siphon tube, so as to taking away the air in siphon bend, forms vacuum gradually in siphon bend; When the vacuum tightness in siphon bend reaches certain value, just syphonic effect occurs, the filtration in self-stip storage area produces water from bottom to up back through filter material layer and supporting layer, and carry out automatic backwash to filtrate, self-stip process starts automatically; Whole waters of the waste water that self-stip process produces and air flotation zone, enter self-stip soil stack through siphon bend, after entering drain water seal district, overflow is arranged to the emptying district of both sides again; The local pipeline section of siphon bend and self-stip soil stack is provided with transparent tube, water level conditions in field observation pipe; When the water level decreasing of self-stip storage area is to the effect water level of siphon destructive device, air enters siphon bend through siphon destructive device, and vacuum environment and syphonic effect are destroyed, and self-stip process stops automatically; Automatic self-cleaning process completes, and system enters into the next work period; Install manually or/and automatic regulating valve door V above two self-stip soil stack ends, drain water seal district design flood level
m1and V
m2, by the adjustment of its valve seat opening in order to control back washing strength;
Force self-stip process: as pressure back flushing need be carried out to the filtrate of filtrating area, the two-position three way automatic switch valve V on the reverse-flow pressure bend pipe water distribution transverse tube that first artificial involved switching is corresponding
a1or V
a2to the second valve position, controlling air flotation zone water outlet and all to enter in self-stip soil stack and to fall formation air-extraction function with full-section pipe-flow form, so as to taking away the air in siphon bend, in siphon bend, forming vacuum gradually; When the vacuum tightness in siphon bend reaches certain value, just syphonic effect occurs, after the filter in self-stip storage area, water is from bottom to up back through filter material layer and supporting layer, carries out pressure back flushing to filtrate, and self-stip process is forced to start; Establish liquidometer L in self-stip storage area, a certain low level-set point after force start self-stip process, control V through automatic linkage
a1or V
a2return to the first valve position; The waste water that self-stip process produces, enter self-stip soil stack through siphon bend, after entering drain water seal district, overflow is arranged to the emptying district of both sides again; When the water level decreasing of self-stip storage area is to siphon destructive device effect water level, air enters siphon bend through siphon destructive device, and the vacuum environment in siphon bend and syphonic effect are destroyed, and self-stip process stops automatically; Force self-stip process to complete, system enters into the next work period; Two self-stip soil stack ends, drain water seal districts design above flood level and install manually-operated gate V
m1and V
m2, by the adjustment of its valve seat opening in order to coordinate force start self-stip process and to control back washing strength, guarantee that whole waters of air flotation zone fall with full-section pipe-flow form from this standpipe;
And/or,
Described self-stip soil stack is by soil stack with manually or/and automatic regulating valve door forms.
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| CN109260781A (en) * | 2018-09-07 | 2019-01-25 | 江苏大学 | A kind of full-automatic gravity valveless filter |
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