CN212954515U

CN212954515U - Inverted umbrella-shaped aerator

Info

Publication number: CN212954515U
Application number: CN202020885804.5U
Authority: CN
Inventors: 王爽; 郭亚兵; 冯国红
Original assignee: Taiyuan University of Science and Technology
Current assignee: Taiyuan University of Science and Technology
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-04-13
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to an inverted umbrella shape aeration machine belongs to surface aeration equipment technical field, including motor, shaft coupling, reducing gear box and impeller shaft, wherein: the motor is vertically arranged downwards, a rotor of the motor is connected with a power input shaft of the reduction gearbox through a coupler, an inverted umbrella seat is vertically and downwards arranged below the reduction gearbox, the impeller shaft is vertically and downwards arranged on the inverted umbrella seat, a power output shaft of the reduction gearbox is connected with the upper end of the impeller shaft, a blade seat is fixedly arranged at the lower end of the impeller shaft, an inverted conical surface body is arranged on the lower surface of the blade seat, a plurality of blades are uniformly distributed along the circumferential direction of the blade seat, and the blades are long trapezoidal, so that the water-gas mixing effect can be effectively enhanced, the diving depth of the aerator is improved, the oxygen charging amount is increased, and; and a lifting device is arranged between the lower part of the reduction gearbox and the ground plane. The utility model relates to a novelty, simple structure through with the long trapezoidal form of blade design, has effectively improved the aeration machine dive degree of depth, has increaseed oxygen charging volume, and the aeration effect is better.

Description

Inverted umbrella-shaped aerator

Technical Field

The utility model belongs to the technical field of surface aeration equipment, a surface aeration machine is related to, especially relate to a strong inverted umbrella shape aeration machine of oxygenating ability.

Background

With the progress of society, the high importance of municipal drainage work by government departments and the good development demand of healthy society, the problem of municipal sewage treatment has become one of the problems that must be solved in recent years. The oxidation ditch is an activated sludge treatment system which has longer hydraulic retention time, lower organic load and longer sludge age, so the oxidation ditch is widely applied to the fields of urban sewage, industrial wastewater treatment and the like. The aerator is the most important mechanical equipment of the oxidation ditch, and determines the treatment efficiency and energy consumption of the oxidation ditch process. The inverted umbrella-shaped aerator is widely applied, and mainly throws sewage out of the edge of the impeller under the rotating propulsion action of the impeller to form a water curtain to wrap a large amount of air; the impeller is expanded in a conical shape from bottom to top, so that sewage is forced to flow circularly up and down, the sewage and the activated sludge are fully mixed, and the liquid level is continuously updated; the bottom and back of the impeller form negative pressure due to the flow of water to suck air, so that enough oxygen is provided for microorganisms in the activated sludge to degrade pollutants in the sewage, and finally the water quality is purified.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an inverted umbrella-shaped aerator which can greatly improve the oxygenation capacity.

The utility model discloses a following technical scheme realizes.

An inverted umbrella-shaped aerator comprises a motor, a coupler, a reduction box and an impeller shaft, wherein: the motor is vertically arranged downwards, a rotor of the motor is connected with a power input shaft of the reduction gearbox through a coupler, an inverted umbrella seat is vertically and downwards arranged below the reduction gearbox, the impeller shaft is vertically and downwards arranged on the inverted umbrella seat, a power output shaft of the reduction gearbox is connected with the upper end of the impeller shaft, a blade seat is fixedly arranged at the lower end of the impeller shaft, an inverted conical surface body is arranged on the lower surface of the blade seat, a plurality of blades are uniformly distributed along the circumferential direction of the blade seat, and the blades are long trapezoidal, so that the water-gas mixing effect can be effectively enhanced, the diving depth of the aerator is improved, the oxygen charging amount is increased, and; and a lifting device is arranged between the lower part of the reduction gearbox and the ground plane.

Furthermore, the blades are detachably inserted on the blade seat, and the plane where the blades are located is perpendicular to the plane where the upper end face of the blade seat is located.

Further, the length of each blade is 1.2 times of the diameter of the end face of the inverted conical surface body, and the number of the blades is an odd number or an even number which is not zero.

Furthermore, the outlet of the blade and the inverted conical surface body form an included angle of 45-60 degrees.

Further, elevating gear includes step motor, lead screw and lead screw slider, and step motor is vertical upwards to be installed in the ground, and step motor's rotor and the lower extreme fixed connection of lead screw, lead screw slider and lead screw cooperate, and lead screw slider fixed mounting is on the lower surface of reducing gear box.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a novelty, simple structure through with the long trapezoidal form of blade design, has effectively improved the dive degree of depth of aeration machine, has increaseed oxygen charging volume, and the aeration effect is better.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of an assembly structure of a blade and a blade seat.

In the figure, 1 is a motor, 2 is a coupler, 3 is a reduction box, 4 is a lifting device, 5 is an inverted umbrella seat, 6 is an impeller shaft, 7 is a blade, 8 is a blade seat, and 9 is an inverted conical surface body.

Detailed Description

An inverted umbrella-shaped aerator as shown in fig. 1 and 2 comprises a motor 1, a coupling 2, a reduction box 3 and an impeller shaft 6, wherein: the motor 1 is vertically arranged downwards, a rotor of the motor 1 is connected with a power input shaft of a reduction gearbox 3 through a coupler 2, an inverted umbrella seat 5 is vertically and downwards arranged below the reduction gearbox 3, an impeller shaft 6 is vertically and downwards arranged on the inverted umbrella seat 5, a power output shaft of the reduction gearbox 3 is connected with the upper end of the impeller shaft 6, a blade seat 8 is fixedly arranged at the lower end of the impeller shaft 6, an inverted conical surface body 9 is arranged on the lower surface of the blade seat 8, a plurality of blades 7 are uniformly distributed along the circumferential direction of the blade seat 8, and the blades 7 are in a long trapezoid shape; and a lifting device 4 is arranged between the lower part of the reduction gearbox 3 and the ground plane.

Furthermore, the blade 7 is detachably inserted into the blade seat 8, and the plane where the blade 7 is located is perpendicular to the plane where the upper end surface of the blade seat 8 is located.

Further, the length of the blades 7 is 1.2 times of the diameter of the end face of the inverted conical surface body 9, and the number of the blades 7 is an odd number or an even number which is not zero.

Furthermore, the outlet of the blade 7 and the inverted conical surface body 9 form an included angle of 45-60 degrees, so that the resistance of the blade 7 to the water body is reduced in the process that the water body rises along the surface of the blade 7; the length of the long trapezoidal blade is 1.2 times of the end face of the conical surface body, so that the diving depth of the aerator can be improved, the entrainment capacity of liquid is increased, and the oxygenation capacity of the aerator is effectively improved.

Further, elevating gear 4 includes step motor, lead screw and lead screw slider, and step motor is vertical upwards to be installed in the ground, and step motor's rotor and the lower extreme fixed connection of lead screw, lead screw slider and lead screw cooperate, and lead screw slider fixed mounting is on the lower surface of reducing gear box 3.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an inverted umbrella shape aeration machine, includes motor (1), shaft coupling (2), reducing gear box (3) and impeller shaft (6), its characterized in that: the motor (1) is vertically arranged downwards, a rotor of the motor (1) is connected with a power input shaft of the reduction gearbox (3) through a coupler (2), an inverted umbrella seat (5) is vertically and downwards arranged below the reduction gearbox (3), an impeller shaft (6) is vertically and downwards arranged on the inverted umbrella seat (5), a power output shaft of the reduction gearbox (3) is connected with the upper end of the impeller shaft (6), a blade seat (8) is fixedly arranged at the lower end of the impeller shaft (6), an inverted conical surface body (9) is arranged on the lower surface of the blade seat (8), a plurality of blades (7) are uniformly distributed along the circumferential direction of the blade seat (8), and the blades (7) are arranged in a long trapezoid shape; and a lifting device (4) is arranged between the lower part of the reduction gearbox (3) and the ground plane.

2. The inverted umbrella-shaped aerator of claim 1, wherein: the blades (7) are detachably inserted on the blade seat (8), and the plane where the blades (7) are located is perpendicular to the plane where the upper end face of the blade seat (8) is located.

3. The inverted umbrella-shaped aerator of claim 1, wherein: the length of the blades (7) is 1.2 times of the diameter of the end face of the inverted conical surface body (9), and the number of the blades (7) is an odd number or an even number which is not zero.

4. The inverted umbrella-shaped aerator of claim 1, wherein: the outlet of the blade (7) and the inverted conical surface body (9) form an included angle of 45-60 degrees.

5. The inverted umbrella-shaped aerator of claim 1, wherein: the lifting device (4) comprises a stepping motor, a lead screw and a lead screw sliding block, the stepping motor is vertically and upwards installed in the foundation, a rotor of the stepping motor is fixedly connected with the lower end of the lead screw, the lead screw sliding block is matched with the lead screw, and the lead screw sliding block is fixedly installed on the lower surface of the reduction gearbox (3).