US 10,202,296 B2Granted

Aeration device

AssigneeSun Won Jang

InventorsSun Won Jang, Jin Il Jeong

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Abstract

Aeration device includes a hollow casing having a motor therein; a mixing unit formed on front side of the casing and having a discharge hole formed in radial direction and an intake hole formed on front thereof; an impeller located inside the mixing unit and coupled to a driving shaft of the motor, the driving shaft extended to the mixing unit, so as to be rotated with the driving shaft, to generate flow in outward radial direction upon rotation, an air inflow unit having one side end located in front of the impeller and serving as an air inflow pipe for introducing air to the mixing unit; and an auxiliary intake unit located on front side of the impeller to be rotated with the driving shaft of the motor and inserted into the air inflow unit to allow fluid in the air inflow unit to flow backward upon rotation.

Claims14

Dependent claims

An aeration device comprising:

a hollow casing (91) having a motor (913) mounted therein;
a mixing unit (92) formed on the front side of the casing (91) and having, a discharge hole (923) formed in a radial direction and an intake hole (941) formed on the front thereof;
an impeller (93) located inside the mixing unit (92) and coupled to a driving shaft (9135) of the motor (913) in such a manner as to be rotated unitarily with the driving shaft (9135) to generate a flow in an outward radial direction upon the rotation, wherein the driving shaft (9135) is extended to the mixing unit (92);
an air inflow unit (96) having one end portion located in front of the impeller (93) and serving as an air inflow pipe to introduce air to the mixing unit (92);
a discharge unit (97) formed on the mixing unit (92) in such a manner as to communicate with the discharge hole (923);
and
an auxiliary intake unit (99) located on the front side of the impeller (93) in such a manner as to be rotated unitarily with the driving shaft (9135) of the motor (913) and adapted to be inserted into the air inflow unit (96) in such a manner as to allow fluid in the air inflow unit (96) to flow toward the impeller (93) upon the rotation,
wherein the auxiliary intake unit (99) comprises:
an extension shaft (991) extended from the impeller (93) into the air inflow unit (96);
and
an auxiliary impeller (992) located on the front end portion of the extension shaft (991), and located inside the air inflow unit (96),
wherein the discharge unit (97) comprises a discharge member (973) having a hollow pipe (9731) open on both ends thereof, the hollow pipe (9731) having a sectional area reduction portion (9732) formed on the rear side thereof so that an internal flow sectional area is decreased as the hollow pipe (9731) goes toward the rear side thereof in the longitudinal direction thereof, and
wherein the discharge member (973) comprises a guide portion (9733) extended backward from the rear side end portion of the hollow pipe (9731) on which an injection hole (9739) is formed, bent from one end portion in the radial direction of the hollow pipe (9731) toward the other end portion hereof, and guiding the fluid injected through the injection hole (9739) in such a manner as to allow the fluid to flow in the radial direction.

10 more elements

An aeration device comprising:

a hollow casing (91) having a motor (913) mounted therein;
a mixing unit (92) formed on the front side of the casing (91) and having a discharge hole (923) formed in a radial direction and an intake hole (941) formed on the front thereof;
an impeller (93) located inside the mixing unit (92) and coupled to a driving shaft (9135) of the motor (913) in such a manner as to be rotated unitarily with the driving shaft (9135) to generate a flow in an outward radial direction upon the rotation, wherein the driving shaft (9135) is extended to the mixing unit (92);
an air inflow unit (96) having one end portion located in front of the impeller (93) and serving as an air inflow pipe to introduce air to the mixing unit (92);
and
an auxiliary intake unit (99) located on the front side of the impeller (93) in such a manner as to be rotated unitarily with the driving shaft (9135) of the motor (913) and adapted to be inserted into the air inflow unit (96) in such a manner as to allow fluid in the air inflow unit (96) to flow toward the impeller (93) upon the rotation,
wherein the auxiliary intake unit (99) comprises:
an extension shaft (991) extended from the impeller (93) into the air inflow unit (96);
an auxiliary impeller (992) located on the front end portion of the extension shaft (991), and located inside the air inflow unit (96);
and
a discharge unit (97) formed on the mixing, unit (92) in such a manner as to communicate with the discharge hole (923),
wherein the discharge unit (97) comprises a hollow discharge pipe open on, one side and the other side thereof in such a manner as to communicate with the mixing unit (92) on one end thereof and to communicate with the outside on the other end thereof, the hollow discharge pipe having a plurality of protrusions protruding therefrom, and
wherein the mixing unit (92) comprises:
a plurality of protrusions (9731b) protruding therefrom in such a manner as to come into contact with the fluid;
and
a guide groove (923a) formed concavedly on the rear side surface thereof in the circumferential direction thereof in such a manner as to communicate with the hollow discharge pipe, the guide groove (923a) having a plurality of protrusions protruding therefrom.

13 more elements

An aeration device comprising:

a hollow casing (91) having a motor (913) mounted therein;
a mixing unit (92) formed on the front side of the casing (91) and having a discharge hole (923) formed in a radial direction and an intake hole (941) formed on the front thereof;
an impeller (93) located inside the mixing unit (92) and coupled to a driving shaft (9135) of the motor (913) in such a manner as to be rotated unitarily with the driving shaft (9135) to generate a flow in an outward radial direction upon the rotation, wherein the driving shaft (9135) is extended to the mixing unit (92);
an air inflow unit (96) having one end portion located in front of the impeller (93) and serving as an air inflow pipe to introduce air to the mixing unit (92);
and
an auxiliary intake unit (99) located on the front side of the impeller (93) in such a manner as to be rotated unitarily with the driving shaft (9135) of the motor (913) and adapted to be inserted into the air inflow unit (96) in such a manner as to allow fluid in the air inflow unit (96) to flow toward the impeller (93) upon the rotation,
wherein the auxiliary intake unit (99) comprises:
an extension, shaft (991) extended from the impeller (93) into the air inflow unit (96);
and
an auxiliary impeller (992) located on the front end portion of the extension shaft (991), and located inside the air inflow unit (96),
wherein the air inflow unit (96) comprises an air adjusting valve (967) adapted to control an amount of air introduced therethrough, and
wherein the impeller (93) comprises a mixing accelerating unit (939) located in front thereof in, such a manner as to be rotated unitarily with the driving shaft (9135), the mixing accelerating unit (939) having a plurality of through holes (9391) penetrated from the front to the rear.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/904,827Filed 15 Jul 2014
Priority: KR 10-2013-008497818 Jul 2013
Published: US 2016/0207805 A121 Jul 2016
Granted: 12 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

C02F 3/1278
Activated sludge processes: provisions for mixing or aeration of the mixed liquor
B01F 23/2332
Using driven stirrers with completely immersed stirring elements: the stirrer rotating about a horizontal axis; Stirrers therefor
B01F 27/25
Mixers with rotary stirring devices in fixed receptacles ; Kneaders: mixers with both stirrer and drive unit submerged in the material being mixed
C02F 7/00
Aeration of stretches of water