CN201648042U - Mixed pipe assembly for shallow pool air flotation water purifier - Google Patents

Abstract

The utility model relates to a mixed pipe assembly for a shallow pool air flotation water purifier, which comprises a mixed pipe and an air-dissolved water pipe, and the mixed pipe is connected with a central pipe. The mixed pipe assembly is characterized in that the air-dissolved water pipe is obliquely inserted into the mixed pipe, one end of the air-dissolved water pipe, which is inserted into the mixed pipe, is provided with a variable angle pipe, and the other end of the air-dissolved water pipe is provided with a releaser; the variable angel pipe is connected with a reducer horn mouth with a large end and a small end, the reducer horn mouth is connected with a flow stabilizing pipe, the reducer horn mouth and the flow stabilizing pipe are concentric with the mixed pipe, and the variable angle pipe, the reducer horn mouth and the flow stabilizing pipe are concentric with the mixed pipe. The mixed pipe assembly increases the purification rate, increases the removing rate of COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand), improves the processing capability of equipment and reduces relatively occupied area; on the other hand, the power of a reflux pump is reduced, and the energy consumption of the reflux pump accounts for a major part in the energy consumption of the whole water purifier, usually exceeding 70%; and thus, even the power of the reflux pump is not reduced obviously, the energy saving effect can be obvious.

Description

The mixer tube assembly that is used for shallow-pool air floatation water purifier

Technical field

The utility model relates to a kind of shallow-pool air floatation water purifier, especially a kind of mixer tube assembly that is used for shallow-pool air floatation water purifier.

Background technology

The structure of state-of-the-art super-effect shallow pool air-floatation water purifier is as shown in Figure 1, 2 on the our times:

Fig. 1, in 2: treating pond 13, turret mount 14, swivel joint 15, connecting hose 16, cloth bucket 17, water distributor 18, revolution drives stepless speed changer 19, shield cap 20, cast aside mud spoon 21, protective shield 22, cast aside mud spoon chain guard 23, cast aside the mud spoon and drive stepless speed changer 24, runway Scraping device 25, push rod 26, hang barrel 27, clear water riser tube 28, push rod 29, walk guidance tape 30, hang barrel 31, arc beam 32, hang screw rod 33, back support roller 34, centering wheel 35, cast aside mud spoon roller frame 36, driving wheel 37, follow-up pulley 38, rotary barrel 39, water level control apparatus 40, regulation of level bucket 41, sludge bucket 42, cast aside mud spoon bearing support 43, mixing tube 44, form 45, railing 46, walk guidance tape hanging feet 47.

As shown in Figure 1, 2: the pond body of the treating pond 13 of water purifier (hereinafter to be referred as the pond body) is a circular discoid, and the upper limb outer ring has endless track, and the bottom is by the crosslinked pallet that constitutes of longitudinal and transverse gusset.For ease of transportation, the pond body generally is made as three or five (during major diameter), in erecting stage assembling splicing, only diameter very little (being generally below the 3.5m), just is made as integral body.Shown in Fig. 1,2 is three chip architectures.The primary structure and the principle of work of water purifier are as follows:

Sewage is promoted by lift pump, following end interface from mixing tube 45 enters, and the dissolved air water after reliever discharges microbubble then enters from mixing tube 45 lateral inclined tubes, and two strands of current are behind uniform mixing, through pipe core, swivel joint 15, connecting hose 16, enter in the water distributor 18 successively.There are several downcomers water distributor 18 belows.Each downcomer opening respectively has a throttle plate, by screw rod and handwheel separately, can distribute the aquifer yield of each downcomer and regulate.Cloth bucket 17 have with water distributor 18 on the corresponding arc of downcomer quantity cut off.Current-sharing grid respectively are equipped with at the rear (referring to see Fig. 1 with respect to sense of rotation) that each arc cuts off, and the place ahead isolates with partition panel and pond body.Be equipped with in the bottom of partition panel and sweep the mud rubber, and the solid shape impurity that can sink not floating sweeps in the precipitation bucket of bottom, pond, regularly open the evacuated tube valve and discharge.The riser tube 28 that four or two (minor diameter is during low discharge) are used to promote clear water is housed on the rotary barrel 40, and there is trapezoid-shaped openings the below of riser tube 28.Clear water after flotation body come-up is separated is by the inside and outside waterhead of rotary barrel 40, flow into riser tube 28 through trapezoid-shaped openings, enter again in the annular space between rotary barrel 40 and the regulation of level bucket 42, little part (about 20%～30%) enters air dissolving system as recirculation water through the reflux pump pressurization through return line, air is dissolved in pressure, the preparation dissolved air water; Most through the 42 top overflows of regulation of level bucket, discharge by the clear water pipe.Rotary barrel 40 inside and outside waterheads are formed naturally by fluid resistance.The effect of regulation of level bucket 42 is the elevation of water surface in the equalizing tank, casts aside the degree of depth that mud spoon 21 casts aside scum layer thereby regulate, and the water ratio that scum silica frost has been cast aside in control satisfies the requirement of pressure filter.Sealed rubber is equipped with in rotary barrel 40 bottoms, prevents external short circuit in the rotary barrel 40.Regulation of level bucket 42 is made up of fixing bucket, adjusting bucket, setting device etc.Regulating bucket can upper and lower adjustings height by setting device, and fixing bucket is welded on the base plate of pond, and fixing bucket is provided with sealing with regulating between the bucket, and setting device has manual and electronic two kinds of structures, and shown in Fig. 1 is manual.The center welding pipe core of sludge bucket 43, pipe core top assembling swivel joint 15.Outer rim is welded with the centering flange on the sludge bucket 43, is welded with sludge pipe between bucket body and the pipe core.Sludge bucket 43 is welded on the center of pond body.The both sides, outer end of turret mount 14 are equipped with driving wheel and follow-up pulley respectively, all are bearing on the endless track of pond body upper limb, inner then by back support roller supporting 35 on plane on the centering flange of sludge bucket 43 upper limbs, realize 3 stable position.Cloth bucket 17, water distributor 18, rotary barrel 40 all are suspended in the below of turret mount 14 by suspender member, with casting aside mud spoon 21, constitute turning unit jointly.Driving wheel on the turret mount 14 drives rotation by stepless speed changer 19, by and runway between the counter-force of frictional force produce the power that makes the turning unit rotation.Also be provided with four centering wheels on the turret mount 14, they are along the centering to turning unit of the centering flange cylindrical scrolling realization of sludge bucket 43 upper limbs.Centering wheel is actual only to need two, and being provided with four is in order to prevent the drive-motor mis-wired, turning unit counter-rotating and having an accident.Left-falling stroke mud spoon 21 is made of the blade of two leaves or three leaf frustums, and an end is equipped with the mud pipe, and each blade all has casts aside helix angle.The outer end of casting aside mud spoon 21 is bearing in by spindle nose on the bearing support 44 that is fixed on the turret mount 14, and the other end then is bearing on two rollers of roller frame 37 of the left-falling stroke mud spoon 21 that is fixed on the swivel mount by the raceway circle.Cast aside mud spoon 21 and drive rotation (shown in Fig. 1 is chain drive) by the stepless speed changer 24 that is fixed on the turret mount 14, each blade is periodically cast aside into scum layer, and the scum silica frost of having cast aside (mud) utilizes gravity to flow in the sludge bucket through the mud pipe that falls, and is discharged by sludge pipe.

The water purifier complete installation is on the roof beam structure of " well " font.According to handling water yield size, regulate the angular velocity of rotation of turning unit by stepless speed changer 19, the correct simultaneously water yield of adjusting each downcomer on the water distributor 18 is distributed, can make from current-sharing grid each point from the rolling tangential speed (velocity of following) of cloth bucket 17 effusive flow velocities (speed of relative movement) and corresponding points cloth bucket 17 (direction is opposite) about equally, according to kinematic principle, the absolute velocity of current will be zero substantially, and water body is with basic transfixion in the pond! Here it is so-called " zero velocity principle ".

Super-effect shallow pool air-floatation water purifier (hereinafter to be referred as water purifier) is provided with mixing tube 45.Its effect is to make sewage and the dissolved air water that discharges microbubble (still being called dissolved air water traditionally) realize mixing more uniformly, improves microbubble simultaneously and catches the probability that adheres to suspended substance (below be abbreviated as SS), thus the raising purification rate.At present, the mixing tube structure of all size water purifier employing both at home and abroad as shown in Figure 3.Sewage promotes through lift pump among Fig. 3, enter through mixing tube 45 bottom interfaces, dissolved air water after reliever 49 discharges microbubble (to call dissolved air water in the following text) is then entered by the dissolved air water pipe 50 on the mixing tube sidewall, and the angle of cut α of dissolved air water pipe 50 medullary rays and mixing tube axial line is generally 30 °.

Research and experiment show that there is major defect in the mixing tube of this structure; More serious impact takes place in two strands of current in mixing tube, be directed at microbubble and grow up.

Microbubble is to lean on the impact force of air molecular thermalmotion in the surface tension balance bubble of water just to be maintained.As everyone knows, the surface tension of water very little (owing to the existence of organic pollutant, surface tension can increase to some extent, but still dislikes little in the sewage), so in water purifier, the stability of microbubble is on duty mutually, the disturbance that surpasses certain intensity will make it to destroy.

After microbubble was destroyed, the air molecule in the former bubble can not dissolve in the water under normal pressure again.Occur near the water surface if destroy, air molecule will volatilize rapidly and enter atmosphere, and in system, air molecule can only be assembled in certain core, forms bubble again.

Exist in the turbulent water, have a large amount of little vortexs, their center pressure is lower, becomes air molecule accumulative core, the bubble that the bubble that forms again after the gathering obviously discharges greater than reliever.Disturbance is big more, and the pressure of little vortex core is low more, and the aggregate amount of air molecule is big more, and the bubble diameter of Xing Chenging is big more again! The mixing tube of existing this structure impacts owing to exist, and disturbance is very big, can make the microbubble that discharges become quite big.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of mixer tube assembly that is used for shallow-pool air floatation water purifier is provided, and can make purification rate obtain more obviously improving.

The technical scheme that provides according to the utility model, the described mixer tube assembly that is used for shallow-pool air floatation water purifier, comprise mixing tube and dissolved air water pipe, mixing tube is connected with pipe core, it is characterized in that: described dissolved air water pipe oblique cutting is gone in the mixing tube, an end that inserts mixing tube at the dissolved air water pipe is provided with the angle pipe, and the other end of dissolved air water pipe is provided with reliever; The big little reducing hydraucone of described angle Guan Yuyi head links to each other, and the reducing hydraucone is connected with barretter, described reducing hydraucone and barretter, and described angle pipe, reducing hydraucone and barretter are concentric with mixing tube.

The utility model has the advantages that: purification rate obtains more obviously improving, and the clearance of COD, BOD improves more remarkable.If keep purification rate constant, adopt mixing tube described in the utility model after, can reduce reflux ratio morely, promptly reduce effluent recycling after handling to the amount of air dissolving system.The processing power that this has relatively improved equipment has on the one hand reduced relative floor space; Reduced the power of reflux pump on the other hand, noticed that the energy consumption of reflux pump accounts for major part in the energy consumption of whole water purifier, often surpassed 70%,, also can receive than remarkable energy saving effect so it is few that reflux pump power was reduced.

Description of drawings

Fig. 1 is a prior art shallow-pool air floatation water purifier vertical view.

Fig. 2 is a prior art shallow-pool air floatation water purifier sectional view.

Fig. 3 is the structural representation of prior art mixing tube.

Fig. 4 is a structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As shown in Figure 4: mixing tube comprises pipe core 1, barretter 2, reducing hydraucone 3, angle pipe 4, mixing tube 5, dissolved air water pipe 6, reliever 7 etc.

The utility model comprises mixing tube 5 and dissolved air water pipe 6, and mixing tube 5 is connected with pipe core 1, and described dissolved air water pipe 6 oblique cuttings are gone in the mixing tube 5, and an end that inserts mixing tube 5 at dissolved air water pipe 6 is provided with angle pipe 4, and the other end of dissolved air water pipe 6 is provided with reliever 7; Described angle pipe 4 links to each other with a big little reducing hydraucone 3, and reducing hydraucone 3 is connected with barretter 2, described reducing hydraucone 3 and barretter 2, and described angle pipe 4, reducing hydraucone 3 and barretter 2 are concentric with mixing tube 5.

Principle of work of the present utility model: the utility model is selected the angle of suitable reducing hydraucone 3, and promptly suitable concentric reducer ratio can accomplish to make two strands of current basic synchronization when entering pipe core 1, and promptly flow velocity is equal substantially, has further reduced disturbance.Because the insertion of dissolved air water pipe 6, can produce certain resistance, cause sewage bias current upward, promptly Shang Fang flow and flow velocity are greater than the below, but simultaneously, dissolved air water is because inertia, also can bias current upward in angle pipe 4, reducing hydraucone 3 and barretter 2, and the result is that two strands of current still can keep synchronous when entering pipe core 1 relatively substantially.Because partly sewage can produce stronger turbulent turbulence when walking around the dissolved air water pipe 6 that inserts in the mixing tube 5, barretter 2 can make this turbulent turbulence mitigation that becomes when two strands of water mix in pipe core 1.

Claims (1)

1. mixer tube assembly that is used for shallow-pool air floatation water purifier, comprise mixing tube (5) and dissolved air water pipe (6), mixing tube (5) is connected with pipe core (1), it is characterized in that: described dissolved air water pipe (6) oblique cutting is gone in the mixing tube (5), an end that inserts mixing tube (5) at dissolved air water pipe (6) is provided with angle pipe (4), and the other end of dissolved air water pipe (6) is provided with reliever (7); Described angle pipe (4) links to each other with a big little reducing hydraucone (3), reducing hydraucone (3) is connected with barretter (2), described reducing hydraucone (3) and barretter (2), described angle pipe (4), reducing hydraucone (3) and barretter (2) are concentric with mixing tube (5).

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