CN2871522Y

CN2871522Y - Reversed-umbrella impeller of detachable large-diameter deep water

Info

Publication number: CN2871522Y
Application number: CNU2005200766642U
Authority: CN
Inventors: 许成法
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-19
Filing date: 2005-10-19
Publication date: 2007-02-21
Anticipated expiration: 2015-10-19

Abstract

The utility model is a detachable deep water aeration impeller, which has a big size and an upside down umbrella shape. The utility model has the structure advantages that a detachable structure is designed, the lower vanes parts are composed of an impeller principal axis, a plurality of lower vanes and a middle disc; and each vane is an independent component. The upper vanes are detachably connected with the middle disc by bolts. The structure of the utility model is simple for arrangement, maintenance and transportation. The independent vanes are general for batched production to shorten production time and reduction of the manufacture cost. By combination with different size vanes, a big size deep water aeration impeller with the shape of an upside down umbrella is made with a diameter of 2.8 to 4m saving cost of 30%.

Description

The reassembling type major diameter deep water type aeration impeller of falling the umbrella

Technical field:

The utility model relates to employed aerator in the municipal sewage treatment oxidation ditch process, the large-diameter deep water type of more specifically the saying so aeration impeller of falling the umbrella.

Background technology:

At present, the aeration impeller of falling the umbrella of domestic maximum diameter reaches 3.75 meters, and match power is 132KW, and the service depth of water is 4.5 meters, and oxygenation capacity is 277 kilograms/hour.What adopt in the prior art is the steel plate integral solder, and large diameter member integral solder like this is given transportation and installed, and keeps in repair and all brought great difficulty, and therefore increases expense greatly.In the practical application, for satisfying client's different needs, design department generally all adopts nonstandard design impeller, brings problems such as manufacturing cycle length, cost height thus.

Summary of the invention:

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of reassembling type major diameter deep water type aeration impeller of falling the umbrella is provided, installation process is conveniently transported, simplified to structure formation by assembling, simultaneously, improve standardization level, thereby shorten the production cycle and reduce manufacturing cost.

The technical scheme that the utility model technical solution problem is adopted is:

Constructional feature of the present utility model is to adopt removable structure formation, constitutes whole of lower blade group with impeller spindle, each lower blade and mid-game, and each blade is an individual member, and described each blade is connected by bolt and mid-game are removable.

Constructional feature of the present utility model is that also whole of described lower blade group is general part, and each blade of supporting setting has the different size model on blade radial length and depth of blade optional.

Constructional feature of the present utility model is that also described blade is a circular arc vane at its upstream face, the base of circular arc vane is to be used for the blade joint flange that is connected with mid-game, top margin backwater one side of circular arc vane is provided with web plate, and the base of web plate is the web plate flange that is connected with mid-game.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

The utility model is simple in structure, convenient for installation and maintenance, the structure formation that blade is removable is very easy to transportation, independently whole of lower blade group is set to general part and can produces in batches, shorten the production cycle, reduce manufacturing cost, undertaken supportingly by blade, can form major diameter deep water type the fall umbrella aeration impeller of diameter, can save manufacturing expense 30% at 2.8-4 rice different performance with different size.

Description of drawings:

Fig. 1 is the application structure synoptic diagram of the utility model on aerator.

Fig. 2 is the utility model packaging assembly synoptic diagram.

Fig. 3 is whole structural representation of the utility model lower blade group.

Fig. 3 a looks synoptic diagram for Fig. 3 master.

Fig. 3 b is Fig. 3 schematic top plan view.

Fig. 4 is the utility model blade structural representation.

Fig. 4 a looks synoptic diagram for Fig. 4 master.

Fig. 4 b is Fig. 4 schematic top plan view.

Fig. 4 c looks synoptic diagram for Fig. 4 left side.

Number in the figure: 1 impeller spindle, 2 lower blades, 3 mid-games, whole of 4 lower blade groups, 5 blades, 6 circular arc vanes, 7 blade joint flanges, 8 web plates, 9 web plate flanges, 10 spindle flanges, 11 extension shafts, 12 step-down gears, 13 drive-motor.

Embodiment:

Referring to Fig. 2, present embodiment adopts removable structure formation, with whole 4 of the lower blade group shown in impeller spindle 1, each lower blade 2 and mid-game 3 pie graphs 3, Fig. 3 a and Fig. 3 b.Each blade 5 is an individual member shown in Figure 4, and each blade 5 is by bolt and 3 removable connections of mid-game.Only expressed the assembling mode of two blades among Fig. 2, the screwhole position shown in the figure is the rigging position of all the other blades, and the assembling mode is identical.

In concrete the enforcement, between impeller spindle 1 and mid-game 3, implement welding, each lower blade 2 welds with impeller spindle 1 and mid-game 3 respectively with its both sides, constitute whole 4 of lower blade group, whole 4 of lower blade group is set to general part, can carry out batch and produce, each blade 5 of supporting setting has the different size model on blade radial length and depth of blade optional.

Referring to Fig. 4, Fig. 4 a, Fig. 4 b and Fig. 4 c, blade 5 is a circular arc vane 6 at its upstream face, the base of circular arc vane 6 is to be used for the blade joint flange 7 that is connected with mid-game 3, top margin backwater one side of circular arc vane 6 is provided with web plate 8, and the base of web plate 8 is the web plate flanges 9 that are connected with mid-game 3.Each blade 5 is by blade joint flange 7 and web plate flange 9, with bolt, nut, packing ring is removable is fixedly connected in the mid-game 3.In order to ensure on-the-spot setting accuracy and impeller balance Hydrants degree, can between each blade 5 and mid-game, steady brace be set.

In the present embodiment, lower blade 2 can have 4-16 only, and its upstream face is a circular arc, and radius is a 0.4-4 rice, and central angle is the 5-43 degree, and length is 0.5-1.5 rice, highly is 0.4-1.2 rice that steel plate thickness is the 4-16 millimeter, adopts the high-strength alloy steel plate.Blade 5 can have 4-16 only, and its upstream face is for being similarly circular arc, and radius is a 1.1-3.5 rice, central angle is the 5-49 degree, and length is 0.3-1.9 rice, is 0.4-0.95 rice for 0.15-0.5 rice, width highly, steel plate thickness is the 6-20 millimeter, adopts the high-strength alloy steel plate.

Referring to Fig. 1, in the practical application, technology connects extension shaft 11 on the spindle flange 10 of impeller spindle 1 routinely, at the other end of extension shaft 11 step-down gear 12 and drive-motor 13 is set.

Claims

1, the reassembling type major diameter deep water type aeration impeller of falling the umbrella, it is characterized in that adopting removable structure formation, constitute whole of group of lower blade (4) with impeller spindle (1), each lower blade (2) and mid-game (3), each blade (5) is an individual member, and described each blade (5) is by bolt and removable connection of mid-game (3).

2, the reassembling type major diameter deep water type aeration impeller of falling the umbrella according to claim 1 is characterized in that described lower blade group whole (4) is general part.

3, the reassembling type major diameter deep water type aeration impeller of falling the umbrella according to claim 1, it is characterized in that described blade (5) is circular arc vane (6) at its upstream face, the base of circular arc vane (6) is to be used for the blade joint flange (7) that is connected with mid-game (3), top margin backwater one side of circular arc vane (6) is provided with web plate (8), and the base of web plate (8) is the web plate flange (9) that is connected with mid-game (3).