CN2354361Y

CN2354361Y - Underwater impeller aerator

Info

Publication number: CN2354361Y
Application number: CN98207516U
Authority: CN
Inventors: 王一平; 孙广明; 王德兴; 谢刚
Original assignee: BOPU SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd TIANJIN
Current assignee: BOPU SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd TIANJIN
Priority date: 1998-07-23
Filing date: 1998-07-23
Publication date: 1999-12-22
Anticipated expiration: 2008-07-23

Abstract

The utility model relates to an underwater impeller aerator, which relates to the aerator for increasing dissolved oxygen in culture water body. The utility model is composed of a floating platform, a flow-guiding bracket, a flow-guiding barrel, a submersible electric motor, the impeller and an air-guiding pipe. The impeller is a three-stage changeable helical angle impeller whose top is provided with a pneumatic trough and an impeller air hole. When the submersible electric motor drives the impeller to rotate, middle and lower layer water body is lifted and pressed along the flow-guiding barrel, and the water body is mixed with air which has negative pressure suction by the air-guiding pipe to realize aeration. The utility model has stable structure, low gravity center, the utility model can avoid electric motor overturn, a three-stage impeller has high aeration efficiency, and the water body has uniform aeration. The utility model not only is especially suitable for culture water body aeration, but also can be used for sewage aeration treatment.

Description

Diving power turbine formula aerator

The utility model relates to a kind of aerator that is used for increasing the breeding water body dissolved oxygen.

Dissolved oxygen in the breeding water body is the essential condition that guarantees aquaculture product normal growth growths such as fishes and shrimps, and therefore, aerator becomes the requisite oxygen increasing equipment in various aquacultures place.Though the structural shape of aerator is varied, the various paddle aerators that widely used aerator is still is simple in structure, oxygenation efficient is high.The main member of paddle aerator of the prior art be by electromotor by the reductor transmission impeller and be fixed on support on the floating drum, wherein electromotor and reductor are installed in the top of support and exceed the water surface, impeller then is installed in the below of support and stretches in the water body, the small-sized paddle aerator that also has has saved reductor, impeller is directly by motor driven, but still kept the tactic pattern of the wheeled aerator of conventional leaf.Though the paddle aerator of this class pattern is relatively simple for structure, machine volume is big and center of gravity is higher, and supporting is stable inadequately, and accidents such as motor overturning water inlet take place during operation easily.

The purpose of this utility model promptly is the improvement in addition suitable to paddle aerator structure of the prior art, to reduce the center of gravity of complete machine, improves the operation stability and avoids the generation of motor overturning water entering accident.

To achieve these goals, the utility model utilizes the water conservancy diversion frame that submersible motor and impeller are hung below raft, the output shaft of submersible motor up, the minor diameter three section type becomes the helical angle impeller and is directly installed on submersible motor output axle head, and its top has pneumatic trough of working in coordination with wireway and the impeller pore that is fed water body by pneumatic trough; Simultaneously, below impeller, establish a guide shell, the wireway of working in coordination with pneumatic trough then is installed above impeller.When submersible motor impeller high speed rotating, middle lower floor water body will along guide shell lifting, supercharging and with mix by wireway negative pressure inhaled air, realize oxygenation.Because submersible motor and impeller all slip in the water body, so machine gravity is very low, the generation that operates steadily and can stop motor overturning accident fully.And not only oxygenation efficient of three section type impeller height also can make the water body even oxygen aeration.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the utility model diving power turbine formula aerator.

Accompanying drawing 1 is the structural representation of the utility model diving power turbine formula aerator;

Accompanying drawing 2 is the structural representation of wireway and impeller pore.

With reference to the accompanying drawings 1,2, the utility model diving power turbine formula aerator mainly is made of raft, water conservancy diversion frame, guide shell, submersible motor, impeller and wireway.Raft is the equilateral triangle platform that is rigidly connected and forms with center terminal pad 3 respectively by 3 connecting rods 2 by 3 floating drums 1, and 3 floating drums lay respectively at 3 angles of equilateral triangle.The water conservancy diversion frame is formed by connecting by put on the shelf dish 4 and undercarriage dish 5, hangs below raft by 3 scalable pull bars 6, and the central authorities of undercarriage dish 5 have pod apertures.Guide shell 7 is for lower opening and have the cylinder of certain taper, is fixed on the below of water conservancy diversion frame undercarriage dish 5 and works in coordination with undercarriage dish 5.Submersible motor 8 is installed in the guide shell 7 by water conservancy diversion frame undercarriage dish 5, and its output shaft 9 up.Impeller 10 is the minor diameter impeller, is directly installed on submersible motor output shaft 9 axle heads, and its blade is divided into and enters the water lift section, supercharging section and discharge mixer, and each section helical angle is different.The top of impeller 10 has pneumatic trough 11 of working in coordination with wireway and the impeller pore 12 that is fed water body by pneumatic trough 11.Wireway 13 is a pipe, and the water conservancy diversion frame that is installed in impeller top is put on the shelf on the dish 4 and worked in coordination with impeller pneumatic trough 11.When submersible motor 8 impeller 10 high speed rotating, middle lower floor oxygen deprivation water body along guide shell promote supercharging and with mixes realization oxygenation by wireway negative pressure inhaled air.

The utility model Stability Analysis of Structures, machine gravity are low, can avoid the generation of motor overturning water entering accident, and three section type becomes the helical angle impeller and strengthened mass transfer effect, oxygenation efficient height; Guide shell can be avoided the water body short-circuit cycle, can make the water body even oxygen aeration.Therefore, the utility model is specially adapted to breeding water body oxygenation, also can be used for sewage aeration and handles.

Claims

1, a kind of diving power turbine formula aerator that is used for increasing the breeding water body dissolved oxygen is characterized in that being made of raft, water conservancy diversion frame, guide shell, submersible motor, impeller and wireway; Described raft is the equilateral triangle raft that is rigidly connected and constitutes with the center terminal pad respectively by 3 connecting rods by 3 floating drums; Described water conservancy diversion frame is formed by connecting by put on the shelf dish and undercarriage dish, hangs below raft by 3 scalable pull bars, and the central authorities of undercarriage dish have pod apertures; Described guide shell is lower opening and the cylinder that has certain taper, be fixed on the below of water conservancy diversion frame undercarriage dish; Described submersible motor is installed in the guide shell by water conservancy diversion frame undercarriage dish, and its output shaft up; Described impeller is three sections and becomes the helical angle impeller, is directly installed on the submersible motor output axle head of water conservancy diversion frame undercarriage dish top, and its top has pneumatic trough of working in coordination with wireway and the impeller pore that is fed water body by pneumatic trough; Described wireway is a pipe, is installed in the top of impeller and works in coordination with the pneumatic trough at impeller top by the water conservancy diversion frame dish of putting on the shelf.