CN2402672Y

CN2402672Y - Electrically driven impeller aerator

Info

Publication number: CN2402672Y
Application number: CN00219059U
Authority: CN
Inventors: 肖萍之
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-05
Filing date: 2000-01-05
Publication date: 2000-10-25
Anticipated expiration: 2010-01-05

Abstract

The utility model relates to an electric impeller aerator which comprises a submersible motor (1), an impeller, and an air inlet pipe (7). The utility model is characterized in that the impeller is composed of at least two vanes (10), a wheel hub (12), an air guide pipe (6), and at least two radial plates (11), wherein, the vanes (10) are fixed around the outer margin of the air guide pipe (6), the wheel hub (12) is fixed at a rotary central position in the air guide pipe (6) through the radial plates (11), the wheel hub (12) is connected with an output shaft (2) of the submersible motor (1), and the air guide pipe (6) is communicated with an air inlet pipe (7) to form an air sucking passage. The utility model is characterized in that the air guide pipe arranged on the impeller is utilized reasonably and slickly to make the air sucking passage extend through the air guide pipe to a negative pressure area formed when the impeller rotates to push flows in order to directly mix and collide with water flows to realize oxygenation. Compared with the prior art, the negative pressure area generated by the rotaiton of the impeller is utilized for oxygenation all the same, and a water inlet passage and an air and water discharging passage are omitted.

Description

Electronic plugflow aeration machine

The utility model relates to the water treating equipment that a kind of environmental protection is used, and is specifically related to the aerator that a kind of biological sewage treatment is used.

In biology aerobic water treatment green technology, how to improve the dissolved oxygen rate and the service efficiency of aerator, simultaneously, reduce investment cost, running cost and noise, be the problem that many production firms and researchist are concerned about always.China patent CN 2189606Y (application number is: 94212639.4, and name is called: underwater aerator) this has been proposed reasonable technical scheme.Its primary structure is discharged seat by submersible machine, impeller, inlet pipe, air inlet seat, water inlet base, guide deflection sheave and aqueous vapor and is formed.Submersible machine links to each other with impeller, and inlet pipe and air inlet seat constitute induction trunk, and the water inlet base is provided with water entry, and guide deflection sheave and aqueous vapor are discharged seat and constituted the aqueous vapor exhaust channel.Annexation is relatively: impeller horizontal positioned, induction trunk are positioned at the impeller upper end, and water entry is positioned at the impeller lower end, and aqueous vapor exhaust channel wound impeller outer rim in horizontal plane distributes.Above technical scheme is compared with air blast aerating type aerator, undoubtedly to improving dissolved oxygen rate, reduce facility investment, running cost and noise aspect and all played active effect, but still have following deficiency: 1, as aerator channel architecture complexity under water, manufacturing cost is higher; 2, because the aqueous vapor exhaust channel is a flow dividing structure in parallel, the aeration scope is little; 3, since during the channel architecture complex work passage loss higher, cause working efficiency to descend.

The utility model purpose provides a kind of high dissolved oxygen rate, high-level efficiency and aerator under water simple in structure.

For achieving the above object, the technical solution adopted in the utility model is: a kind of electronic plugflow aeration machine, comprise submersible machine, impeller and inlet pipe, described impeller is made up of at least two blades, wheel hub, airway and two disc at least, blade ring is fixed around the airway outer rim, the rotation center position of wheel hub in disc is fixed on airway, wheel hub links to each other with the output shaft of submersible machine, and airway is communicated with inlet pipe and constitutes air intake passage.

In the technique scheme, described inlet pipe is communicated with atmosphere.Described wheel hub is meant the part of impeller central fixed shaft.Described airway is meant a kind of channel-style structure of guiding air in the utility model, also can be understood as a kind of channel architecture that is located at impeller rotation center place, its core is that air intake passage is extended to impeller rotation center position from inlet pipe, and leads to impeller plug-flow direction.The airway exit end extends its best results of negative pressure center that the blade plug-flow is produced.The outlet of described airway can be cylindricality or taper, and its outlet edge is provided with ring-type square waveform or sawtooth waveform structure.Described disc plays the fixed support effect between airway and wheel hub.Can be provided with an air chamber on the described air intake passage, air chamber is fixedlyed connected with submersible machine, and airway is communicated with inlet pipe through air chamber.Described air chamber is positioned at output shaft one side of submersible machine for best, and the output shaft of submersible machine passes from air chamber and air chamber outlet, airway and air chamber outlet rotation socket, and inlet pipe links to each other with the air chamber import.Airway and air chamber outlet rotation socket place can adopt mechanically-sealing apparatus, barrier structure also can be set improve sealing effectiveness.Described air chamber can be provided with two imports, and two imports link to each other with two inlet pipe respectively.

Another purpose of the utility model provides a kind of high dissolved oxygen rate, high-level efficiency, simple in structure and to the aerator under water of the even oxygenation in waters.

On the technique scheme basis, impeller plug-flow direction described in the utility model is provided with rudder plate, and rudder plate is connected with submersible machine, and submersible machine is provided with base, and submersible machine horizontally rotates with base and is connected.Described rudder plate can be fixedly connected with being connected of submersible machine, also can be the flexible connection that is provided with latch-up structure.Rudder plate and impeller plug-flow direction are acute angle.

Principle of work of the present utility model is: shown in accompanying drawing 4, during submersible machine work, its output shaft impeller high speed rotating, promote the preceding flow at high speed of current direction, because the plug-flow effect of blade, according to fluid mechanics principle, produce a negative pressure region at the annular plug-flow center of impeller front end this moment, this negative pressuren zone sucks air and mix collision with current through air intake passage and forms gas-vapor mix liquid, thereby realizes water body oxygenation and plug-flow.After the utility model was installed rudder plate, swiftly flowing flow action produced vertical force and promotes aerator slowly rotation in horizontal plane, thereby realize evenly oxygenation purpose of zone in rudder plate.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, because the utility model forms air intake passage when airway extends to impeller rotation plug-flow negative pressuren zone, directly mix collision and realize oxygenation with current, the negative pressuren zone oxygenation that compared with prior art utilizes the impeller rotation to produce equally, but saved water entry and aqueous vapor exhaust channel, thus designs simplification many.

2, because the utility model utilizes airway set on the impeller directly air intake passage to be introduced the formed negative pressuren zone of plug-flow rationally, cleverly, this technical conceive has technical progress significantly and inventive features significantly.

3, because the utility model has compared with prior art saved water entry and aqueous vapor exhaust channel, reduce many passage losses when therefore working, improved working efficiency.

4, because the utility model impeller is the propeller formula, and the plug-flow that produces during work advances towards a direction, to be that flow dividing structure in parallel is compared the plug-flow effect much better than with the described aqueous vapor exhaust channel of prior art, and plug-flow is apart from also much bigger under the equal-wattage situation.Add described rudder plate and horizontally rotate the mating reaction that is connected, seemingly radar scanning of the utility model, the even oxygenation of water body in the scope of big waters with submersible machine and bearing.

Impeller high speed rotating during 5, owing to the utility model work, blade is the high-speed stirring water body in plug-flow, makes water body form turbulent flow back and air mixed, the further like this solubleness that increases air, the dissolved oxygen rate of water body is further improved, thereby reach the purpose of abundant dissolved oxygen.

6, because the utility model directly utilizes the impeller plug-flow, there are not water entry and aqueous vapor exhaust channel, compare with the aerator under water of pump drainage water structure of the prior art, the situation that passage stops up when having avoided work has effectively been guaranteed the works better of aerator under water.

Accompanying drawing 1 is the structure sectional view of the utility model embodiment one;

Accompanying drawing 2 is the structure sectional view of the utility model embodiment two;

Accompanying drawing 3 is the utility model blade wheel structure synoptic diagram;

Accompanying drawing 4 is the utility model fundamental diagram.

Wherein: [1], submersible machine; [2], output shaft; [3], case; [4], air chamber; [5], key; [6], airway; [7], inlet pipe; [8], clip; [9], cover cap; [10], blade; [11], disc; [12], wheel hub; [13], air chamber import; [14], air chamber outlet; [15], rudder plate; [16], support; [17], base; [18], steering strut; [19], negative pressuren zone.

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one: referring to accompanying drawing 1 and shown in Figure 3, a kind of fixedly pulling flow type aerator, comprise submersible machine [1], impeller, air chamber [4] and 2 inlet pipe [7], described impeller is made up of 3 blades [10], wheel hub [12], airway [6] and 3 disc [11], 3 blades [10] are fixed around airway [6] outer rim, the rotation center position of wheel hub [12] in 3 disc [11] are fixed on airway [6], wheel hub [12] links to each other through key [5] with the output shaft [2] of submersible machine [1].Output shaft [2] one sides of described submersible machine [1] are provided with an air chamber [4], air chamber [4] is made of case [3] and fixedlys connected with submersible machine [1], air chamber [4] is provided with 1 air chamber outlet [14] and 2 air chamber imports [13], 2 air chamber imports [13] link to each other with 2 inlet pipe [7] respectively and (can only see 1 inlet pipe [7] because of the sectional view relation in the accompanying drawing 1, and present embodiment is 2 inlet pipe [7]), the output shaft [2] of submersible machine [1] passes from air chamber [4] and air chamber outlet [14], airway [6] and air chamber outlet [14] rotation socket, airway [6] is communicated with inlet pipe [7] and constitutes air intake passage through air chamber [4].Inlet pipe [7] is fixing through clip [8], and is provided with cover cap [9] on inlet pipe [7] top.The outlet of described airway [6] can be taper, and airway [6] conical outlet edge can be provided with ring-type square waveform or sawtooth waveform structure, and its oxidation effect can be better like this.Present embodiment is used in groups, relatively is fit to the water body in big pond is carried out oxygenation.It is fixed that its array mode and layout arrangement can come according to pond shape and size, can utilize generally speaking one group fixedly pulling flow type aerator formation loop to the water body oxygenation.

Embodiment two: referring to accompanying drawing 2 and shown in Figure 3, a kind of rotary scanning pulling flow type aerator, on the basis of said structure, the described impeller plug-flow of present embodiment direction is provided with rudder plate [15], rudder plate [15] is acute angle with impeller plug-flow direction, rudder plate [15] is connected with submersible machine [1] through support [16], its connection can be for fixedly connected, also can be flexible connection through latch-up structure, can regulate the angle of rudder plate [15] and impeller plug-flow direction according to practical situation like this, to reach the purpose of control rotary scanning speed; Submersible machine [1] below is provided with base [17], and base [17] horizontally rotates with submersible machine [1] through steering strut [18] and is connected.The single use of present embodiment relatively is suitable for the water body of Xiao Chi is carried out oxygenation, also can be arranged in groups in the big pond and use.

Claims

1, a kind of electronic plugflow aeration machine, comprise submersible machine [1], impeller and inlet pipe [7], it is characterized in that: described impeller is made up of at least two blades [10], wheel hub [12], airway [6] and two disc [11] at least, blade [10] is fixed around airway [6] outer rim, the rotation center position of wheel hub [12] in disc [11] is fixed on airway [6], wheel hub [12] links to each other with the output shaft [2] of submersible machine [1], and airway [6] is communicated with inlet pipe [7] and constitutes air intake passage.

2, aerator according to claim 1 is characterized in that: described air intake passage is provided with an air chamber [4], and air chamber [4] is fixedlyed connected with submersible machine [1], and airway [6] is communicated with inlet pipe [7] through air chamber [4].

3, aerator according to claim 2, it is characterized in that: described air chamber [4] is positioned at output shaft [2] one sides of submersible machine [1], the output shaft [2] of submersible machine [1] passes from air chamber [4] and air chamber outlet [14], airway [6] and air chamber outlet [14] rotation socket, inlet pipe [7] links to each other with air chamber import [13].

4, aerator according to claim 3 is characterized in that: described air chamber [4] is provided with two imports, and two imports link to each other with two inlet pipe [7] respectively.

5, according to claim 1 or 2 or 3 or 4 described aerators, it is characterized in that: described impeller plug-flow direction is provided with rudder plate [15], rudder plate [15] is connected with submersible machine [1], and submersible machine [1] is provided with base [17], and submersible machine [1] horizontally rotates with base [17] and is connected.

6, aerator according to claim 5 is characterized in that: described rudder plate [15] flexibly connects through latch-up structure and submersible machine [1].

7, aerator according to claim 5 is characterized in that: described rudder plate [15] is fixedlyed connected with submersible machine [1].

8, according to claim 1 or 2 or 3 described aerators, it is characterized in that: the outlet of described airway [6] is taper.

9, aerator according to claim 8 is characterized in that: described airway [6] conical outlet edge is provided with ring-type square waveform or sawtooth waveform structure.