CN208727220U

CN208727220U - A kind of recirculation unit

Info

Publication number: CN208727220U
Application number: CN201820962459.3U
Authority: CN
Inventors: 张显超
Original assignee: Shanghai Supratec Film Technology Co Ltd
Current assignee: Shanghai Supratec Film Technology Co Ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2019-04-12
Anticipated expiration: 2028-06-21

Abstract

The utility model discloses a kind of recirculation units, the device includes immersible pump (1), pipeline (2) and reduced pipe (3), the water inlet of the pipeline (2) is connected to the water outlet of the immersible pump (1), and the reduced pipe (3) is installed on the water outlet of the pipeline (2)；The pipeline (2) is obliquely installed along water outlet direction.The device utilizes the cooperation of pipeline and reduced pipe, reduces recirculation unit volume；And stain disease is discharged using reduced pipe, jet stream state is formed, increases water flow impact pressure, mixing effect is good.

Description

A kind of recirculation unit

Technical field

The utility model relates to a kind of agitating devices, more particularly, to a kind of recirculation unit.

Background technique

In stain disease processing technique, mainly the pollutants such as organic matter in stain disease are carried out using microorganism in water Degradation, realizes the removal of pollutant.In order to farthest send out the microorganism in the confined space (stain disease treatment reactor tank) Maximum effect is shot, often needs to be stirred stain disease using agitating device, to realize in tank body microorganism and oxygen everywhere The substances such as gas are uniformly distributed.

Existing agitating device is mainly submersible agitator, but the general volume of submersible agitator is big, power consumption is high.In large size In stain disease processing item, reaction pool volume is larger, more practical using submersible agitator；But at the limited sewage in space It manages in reactor tank, submersible agitator can not be installed, and power consumption is too big, and economic benefit is lower.

Utility model content

The utility model in order to solve the problems, such as that recirculation unit volume is big in the processing of existing stain disease, power consumption is high, This is designed to provide a kind of recirculation unit small in size, low in energy consumption, mixing effect is good.

In order to realize the purpose of this utility model, herein provided by recirculation unit include immersible pump, pipeline and different Diameter pipe, the water inlet of the pipeline are connected to the water outlet of the immersible pump, and the reduced pipe is installed on the water outlet of the pipeline At mouthful；The pipeline is obliquely installed along water outlet direction.

The device using immersible pump by sewage treatment reactor tank stain disease promoted certain altitude after through pipeline and reducing Pipe discharge, stain disease realizes the mixed liquor circulation stirring in sewage treatment reactor tank in immersible pump and pipeline, most afterwards through different The outflow of diameter pipe.For conventional agitating device, which only needs immersible pump, pipeline and reduced pipe, using this three it Between cooperation, it can be achieved that realizing optimal circulation stirring effect with the smallest volume, minimum power consumption, and be discharged using reduced pipe Stain disease forms jet stream state, increases water flow impact pressure, mixing effect is good.

Further, the pipeline is U-typed pipeline.

Further, the pipeline is in symmetrical shape using the immersible pump as axis.Using symmetrical shape, further Improve the mixing effect in sewage treatment reactor tank.

Further, the reduced pipe is installed on the water outlet of the pipeline by one eighth bend.Pass through one eighth bend Keep the flow direction of stain disease downward in 45° angle with vertical direction, part potential energy is kinetic energy, is further increased in pipeline The flow velocity of stain disease reaches more preferably mixing effect.

Further, the microcephaly of the reduced pipe is directed toward the immersible pump.Water discharge speed in pipe is further increased, is increased Water flow impact pressure makes water exit end in jet stream state, forms whirlpool, reach optimal mixing effect in the confined space.

The beneficial effects of the utility model are: the device utilizes the cooperation of pipeline and reduced pipe, circulation stirring dress is reduced The volume set；And stain disease is discharged using reduced pipe, jet stream state is formed, increases water flow impact pressure, mixing effect is good.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of recirculation unit provided by the utility model；

Fig. 2 is the front view of recirculation unit provided by the utility model；

In figure: 1- immersible pump, 2- pipeline, 3- reduced pipe.

Specific embodiment

It is herein that specific embodiment is further detailed to the application recirculation unit claimed work in conjunction with attached drawing Thin explanation.

It is a kind of small in size, good circulation stirring of mixing effect that the application is claimed herein combined with Figure 1 and Figure 2, Device, the device include immersible pump 1, pipeline 2 and reduced pipe 3, and the water inlet of pipeline 2 is connected to the water outlet of immersible pump 1, different The major part of diameter pipe 3 is installed on the water outlet of pipeline 2；Pipeline 2 is obliquely installed along water outlet direction.Wherein, immersible pump 1 is low function Immersible pump is consumed, the power consumption of whole device is reduced, realizes low in energy consumption.

Above-mentioned apparatus is placed in sewage treatment reactor tank, immersible pump 1 is started, stain disease is promoted centainly through immersible pump 1 Highly, stain disease obtains kinetic energy and potential energy, the 20%- of general hoisting depth control available depth in sewage treatment reactor tank 30%, the excessively high power consumption that will increase immersible pump of hoisting depth, the too low then mixing effect of hoisting depth is unobvious.It is mentioned through immersible pump 1 Stain disease after rising certain altitude out of, immersible pump 1 water outlet feed line 2, realize in immersible pump 1 and pipeline 2 by stain disease Stirring, is finally discharged through reduced pipe 3；The stain disease of discharge forms vortex in sewage treatment reactor tank, realizes mixing effect.

Pipeline 2 in recirculation unit provided herein can be any structure, it is preferred that being with immersible pump 1 The symmetrical symmetrical shape of axis such as uses U-typed pipeline.In order to further increase the flow velocity of stain disease in pipeline, this Shen Please herein the technical solution adopted is that set pipeline 2 to vertical direction in 45 degree of angles, stain disease is from hoisting depth by the road 2 It shunts, flow direction is downward in 45° angle with vertical direction, and part potential energy is kinetic energy, therefore further increases dirty in pipeline The flow velocity of waste water.

In addition, the major part of the reduced pipe 3 of recirculation unit provided herein can be directly mounted at going out for pipeline 2 At the mouth of a river, it is preferred that being installed on the water outlet of pipeline 2 by one eighth bend.The microcephaly of reduced pipe 3 can be into as water outlet Interior water discharge speed is managed in the increase of one step, and increased water flow impact force makes water exit end in jet stream state, forms whirlpool, in a limited space Optimal mixing effect is realized with minimum energy consumption.Wherein, the microcephaly of reduced pipe 3 can be not directed to immersible pump 1, it is preferred that referring to To immersible pump 1.

In order to which the structure and principle of recirculation unit provided by the utility model is better described, the application gives herein Following embodiment out.

Embodiment one:

It is illustrated so that available depth in sewage treatment reactor tank is 3m as an example in the present embodiment, the outlet of immersible pump 1 is promoted Height h=3 × 20%=0.6m, it is the low-power consumption immersible pump of 0.3kw that immersible pump 1, which selects power, and flow velocity is in pipeline after promotion 0.8m/s, line size use DN50, and through reduced pipe 3, having a size of DN50-25, velocity in pipes can promote four times, and exit velocity can Reach 3.2m/s, left and right both direction forms two opposite vortexs, and stain disease in entire reactor tank is driven to flow, each in tank body Place's reaction is uniform.

Embodiment two:

It is illustrated so that available depth in sewage treatment reactor tank is 3.5m as an example in the present embodiment, the outlet of immersible pump 1 mentions Rise h=3.5 × 20%=0.7m, it is the low-power consumption immersible pump of 0.37kw that immersible pump 1, which selects power, stream in pipeline after promotion Speed is 0.8m/s, and line size uses DN50, and through reduced pipe 3, having a size of DN50-25, velocity in pipes can promote four times, outlet stream For scooter to 3.2m/s, left and right both direction forms two opposite vortexs, drives stain disease in entire reactor tank to flow, tank body Inside reaction is uniform everywhere.

Embodiment three:

It is illustrated so that available depth in sewage treatment reactor tank is 5m as an example in the present embodiment, the outlet of immersible pump 1 is promoted Height h=5 × 20%=1m, it is the low-power consumption immersible pump of 0.52kw that immersible pump 1, which selects power, and flow velocity is in pipeline after promotion 1.0m/s, line size use DN50, and through reduced pipe 3, having a size of DN50-25, velocity in pipes can promote four times, and exit velocity can Reach 4m/s, left and right both direction forms two opposite vortexs, drives stain disease in entire reactor tank to flow, in tank body everywhere Reaction is uniform.

Stain disease in sewage treatment reactor tank realizes circulation, mixing effect by utility model device in reactor tank Good, sludge concentration, oxygen concentration in reactor tank everywhere etc. are uniformly distributed, and the intracorporal activated sludge of tank is fully used, out Water water quality is preferable.

Recirculation unit provided by the utility model can be used in any sewage treatment reactor tank, such as apply to In following reactor tank:

1, in anaerobic jar, the main organic matter absorbed using polyP bacteria in stain disease, while Quadrafos is released, will have Machine nitrogen is converted into ammonia nitrogen.

2, in anoxic tank, mainly denitrifying bacteria is converted the nitrate nitrogen in stain disease using the organic matter in stain disease The removal of nitrogen is realized for nitrogen, while removing part phosphorus using Denitrifying Phosphate Accumulating Organisms.

It 3, is mainly nitrate nitrogen mineralized nitrogen in water using nitrifier and oxygen, while in water of degrading in aerobic tank Organic matter.

4, in activated sludge sewage waste water treatment process, in order to reduce the loss of the substances such as activated sludge, it is often necessary to will get well The sludge reflux of oxygen unit is to anoxic unit, and the activity sludge reflux of anoxic unit is to anaerobic unit, and in different reactor tanks Activated sludge concentration is different, this just needs recirculation unit to be uniformly mixed two kinds of activated sludge as early as possible, reduces and lives The adaptation period of property sludge.

Although recirculation unit provided by the utility model applies to the difference of the effect in each sewage reaction treatment tank, But it is fundamentally provided to make sludge concentration, oxygen concentration in reactor tank everywhere etc. to be uniformly distributed, increases reaction contact area, Improve the treatment effect of stain disease.

The above-mentioned description to embodiment is for the ease of those skilled in the art it will be appreciated that and using this Case technology, person skilled in the art obviously can make various modifications to these examples easily, and described herein one As principle be applied in other embodiments without having to go through creative labor.Therefore, this case is not limited to above embodiments, ability According to the disclosure of this case, the improvement and modification made for this case all should be in the protection scopes of this case by the technical staff in domain.

Claims

1. a kind of recirculation unit, it is characterised in that: the device includes immersible pump (1), pipeline (2) and reduced pipe (3), described The water inlet of pipeline (2) is connected to the water outlet of the immersible pump (1), and the reduced pipe (3) is installed on going out for the pipeline (2) At the mouth of a river；The pipeline (2) is obliquely installed along water outlet direction.

2. a kind of recirculation unit according to claim 1, it is characterised in that: the pipeline (2) is U-typed pipeline.

3. a kind of recirculation unit according to claim 1 or 2, it is characterised in that: the pipeline (2) is with the diving Pumping (1) is axis, is in symmetrical shape.

4. a kind of recirculation unit according to claim 1 or 2, it is characterised in that: the reduced pipe (3) passes through 45 degree Elbow is installed on the water outlet of the pipeline (2).

5. a kind of recirculation unit according to claim 3, it is characterised in that: the reduced pipe (3) is curved by 45 degree Head is installed on the water outlet of the pipeline (2).

6. a kind of recirculation unit according to claim 1 or 2, it is characterised in that: the microcephaly of the reduced pipe (3) refers to To the immersible pump (1).

7. a kind of recirculation unit according to claim 3, it is characterised in that: the microcephaly of the reduced pipe (3) is directed toward The immersible pump (1).

8. a kind of recirculation unit according to claim 4, it is characterised in that: the microcephaly of the reduced pipe (3) is directed toward The immersible pump (1).

9. a kind of recirculation unit according to claim 5, it is characterised in that: the microcephaly of the reduced pipe (3) is directed toward The immersible pump (1).