1. Title of Invention
Ultra low power consuming various types of aerators used in aqua culture, STP, etp and other pond cleaning systems
2. Applicant
Name : EESAVYASA TECHONOLOGIES PVT. LTD
Nationality : INDIAN
Address : R&D centre, Plot No: 79, Phase - III, Balanagar, Hyderabad, R.R. District, Andhrapradesh, Pin - 500037, INDIA.
3. Preamble to the description:
Complete Specification:

Summary:

The main objective of this invention to reduce the power consumption and enhance the design supremacy in aerators. The purpose of using the patented design is to redefine the aquatic species growth, ease the pollution levels in STPs, ETPs.

The following are different aerators methods Wheel Paddle aerators
• This system has a water lifting bowl or bucket type which can lift the water in large quantities.
• It has an outlet to one side and some holes underneath to it.
• Beside the lifting bowl there will be an aerator paddle wheel.
• Water lifting bowl will be driven vertically by the positive displacement system attached to it and it is driven by the BLDC (Brushless DC) motor.
• When some quantity of water is lifted up, water will be out from the outlet and slides down on the paddle wheel meanwhile the paddle wheel rotates.
• The water which slips on the wheel is exposed to the atmosphere and thus more oxygen is dissolved into the water.
• The holes underneath the water lifting bowl also allow the water to spill outside and thus making contact with atmospheric oxygen dissolved into it.
• By this way more oxygen is dissolved into the water.
• Power required for the BLDC motor is very minimal.

Mesh Aerators
• This system has a water lifting bowl or bucket type which can lift the water in large quantities.
• It has an outlet to one side and some holes underneath to it.
• Beside the lifting bowl there will be layers of mesh with minute pores.
• Water lifting bowl will be driven vertically by the screw rod attached to it and this screw rod is driven by the BLDC motor.
• When some quantity of water is lifted up, water will be out from the outlet and slides down on the mesh.
• The water seeps from the layers of mesh slowly and exposed to the atmosphere and thus more oxygen is dissolved into the water.
• The holes underneath the water lifting bowl also allow the water to spill outside and thus making contact with atmospheric oxygen dissolved into it.
• By this way more oxygen is dissolved into the water.
• Power required for the BLDC motor is very minimal.

Rack and Pinion system based Aerators
• This mechanism has a paddle wheel with unique fins and a rack&pinion system.
• Paddle wheel rotates with the help of rack&pinion system.
• The rack and pinion system is driven by a BLDC (Brushless DC) motor which consumes very low electric power.
• Water is being lifted by the fins when it is rotated and thrown up in to the atmosphere.
• By this, oxygen in the atmosphere mixes up with the water and oxygen levels are maintained.
• Fins of the paddle wheel are unique data can dwell more water easily into the atmosphere.

4. Description

Water aeration is the process of increasing the oxygen saturation of the water. Water aeration is often required in water bodies that suffer from anoxic conditions, usually caused by adjacent human activities such as sewage discharges, agricultural run-off, or over-baiting a fishing lake. Aeration can be achieved through the infusion of air into the bottom of the lake, lagoon or pond or by surface agitation from a fountain or spray-like device to allow for oxygen exchange at the surface and the release of noxious gasses such as carbon dioxide, methane or hydrogen sulphide.

Dissolved oxygen (DO) is a major contributor to water quality. Not only do fish and other aquatic animals need it, but oxygen breathing aerobic bacteria decompose organic matter. When oxygen concentrations become low, anoxic conditions may develop which can decrease the ability of the water body to support life.

The present invention relates to aeration system used in aqua culture industry. The aquaculture sector is besets with issues of high input costs in the form of ever-increasing energy consumption and reduced yield due to lack of environmental control. This patent describes very low power consuming aerators based on BLDC running at high rpm.

Background of invention

There are several types of aerators available in the market like paddle type, wheel type, long arm wheel type, spiral type etc. to add oxygen in dissolved condition to the pond ecology. In many ponds like STP, ETP and aqua culture ponds, where toxinous chemicals, effluents, other dissolved chemicals are involved, the nature of water varies with respect to Oxygen quality standards. The problems of oxygen imbalances is well addressing of pouring the water into surface of water using high electricity consuming motors.

Conventional aerators work on low rpms and therefore serve to merely lift water into the air for a short height. Good aeration demands that water come into contact with oxygen for as long a time as possible, and at granular a level as possible.

Spiral aerators use tall spirals which have a torque-dampening effect thus reducing the efficiency of aeration. The submersible air injectors consume high power of 5HP.

Paddlewheel aerators also utilize air-to-water contact to transfer oxygen from the air in the atmosphere to the water body. They are most often used in the aquaculture (rearing aquatic animals or cultivating aquatic plants for food) field. Constructed of a hub with attached paddles, these aerators are usually powered by a tractor power take-off (PTO), a gas engine, or an electric motor. They tend to be mounted on floats. Electricity forces the paddles to turn, churning the water and allowing oxygen transfer through air-water contact. As each new section of water is churned, it absorbs oxygen from the air and then upon its return to the water, restores it to the water.

The patent describes an aerator system which works on a high rpm and at ultra-low energy. It serves to create fine particles of water and lift these particles to greater heights than conventional aerators, upwards of 8 feet. The degree of aeration is therefore vastly superior.

6. Brief description of drawing:
• paddles are used to lift water and expose each drop of water to fresh air
• This process refills oxygen in pond water.
• paddles are arranged in circular form
• Paddles are connected to unidirectional rack pinion mechanism, which is connected to a screw rod mounted BLDC motor.

7. Claims

1. This method of invention is used in aqua culture like fish, prawn, crab and similar type of any other marine species.

2. This method of invention is used in STP

3. This method of invention is used in ETP generated from industries for aeration purpose.

4. This method of invention is used in textile industry where weavers and king of fabric manufacturing equipments.

5. This method of invention is used in industrial blowers, fans, propellers, heat exchangers, cooling machines etc.

6. This method of invention is used in aeroplane shafts movement to run the propeller blades