WO2014192013A2

WO2014192013A2 - Borewell, openwell, creek and canal pumping using screw rod mechanism

Info

Publication number: WO2014192013A2
Application number: PCT/IN2014/000275
Authority: WO
Inventors: Chakravarthy D.P.; Sankar Banda Ravi
Original assignee: Eesavyasa Technologies Pvt. Ltd
Priority date: 2013-04-26
Filing date: 2014-04-28
Publication date: 2014-12-04
Also published as: WO2014192013A3

Abstract

In this method of invention, a cylindrical vessel is having a screw rod type of circular mechanism which lifts water when rotated in clockwise direction. But as rotation of such designed cylinder requires high torque and needs a vertical axial support, certain direct current based motors and mechanical advantage principles are used in achieving the task. This can be used for lifting of water or liquids or even gaseous fluids to pull out from lower depths to higher heights wherever required.

Description

DESCRIPTION

BOREWELL, OPENWELL, CREEK AND CANAL PUMPING USING SCREW

ROD MECHANISM

FIELD OF THE INVENTION

The present invention relates to borewell, openwell, creek and canal pumping. Particularly, present invention relates to a borewell, openwell, creek and canal pumping using screw rod mechanism.

BACKGROUND OF THE INVENTION

Several pumping systems involving different pumping and extraction devices have been developed for transfer of fluids from an open well/pond. These pumping systems run on AC motor and require electricity for operation and the electricity consumption increases as the depth of suction increases. In case of Centrifugal pumps, the efficiency tends to decline as flow rates rise after peak efficiency is reached. The pump efficiencies also tend to decline over time to wear. In case of plunger pumps, lot of energy is wasted when the fluid is accelerated in the piping system, hence decreases efficiency of any plunger pump system.

There are various methods which are used for lifting of water available in market like induction motors, rotary vein motors, submersible motors etc. Many of these motors are making use of centrifugal pumping concept whose efficiency is genuinely stated by the suppliers as low as 40% to the energy consumed.

Publication No CN203189608 relates to a torque-adjustable buffer and provides a buffer device used on a pumping station water pump flap valve. The torque-adjustable buffer comprises a piston, a screw serving as a piston rod, a mounting base arranged outside the piston and a screw base arranged outside the screw. In practical when estimated to the amount of work done in lifting the water it can be found that more than 80% of the energy utilized goes as a waste heat to the surroundings and needs cooling. Thus there is need for appropriate improvised designs in pumping solutions avoiding waste heat generation.

The present invention makes the design simple with nano materials and makes corrosion free. The pumping system requires a very little/no power because of mechanical advantage principle involved in it. Hence it eliminates the cost incurred in expensive maintenance, cable cost, panel boards and frequent motor burn outs making the system complete electricity independent.

SUMMARY OF THE INVENTION

Primary object of the present invention is to provide a water pumping device that consumes little or no power because of mechanical systems involved.

Another object of the present invention is to provide a water pumping device by making the design simple with nano materials and corrosion free.

Yet another object of the present invention is to eliminate the cost incurred in expensive maintenance, cable cost, panel boards and frequent motor burn outs making the system complete electricity independent.

Still another object of the present invention is to provide high efficiency throughout the pump lifecycle as the nano material is very less prone to wear out.

Accordingly the present invention provides a borewell, openwell, creek and canal pumping using screw rod mechanism. Present invention provides a system and method for lifting water comprising a cylindrical vessel having a screw rod type of circular mechanism which lifts water when rotated in clockwise direction. But as rotation of such designed cylinder requires high torque and needs a vertical axial support, certain direct current based motors and mechanical advantage principles are used in achieving the task. This can be used for lifting of water or liquids or even gaseous fluids to pull outj om Jower ide.pthsl.to higher heights wherever required. In a preferred embodiment of the present invention, a cylindrical vessel is having a screw rod type of circular mechanism which lifts water when rotated in clockwise direction. But as rotation of such designed cylinder requires high torque and needs a vertical axial support, certain direct current based motors and mechanical advantage principles are used in achieving the task. This can be used for lifting of water or liquids or even gaseous fluids to pull out from lower depths to higher heights wherever required.

In another embodiment of the present invention, inlet of a pump is connected to a pipe. The other end of connected pipe is dipped in closed well or bore well. This pipe is split into two parts. Each splitted pipe is connected to an inlet NRV, which is connected to cylinder. There is a piston in cylinder which is connected to screw rod. This screw rod is displaced using internal threads of a gear which is driven by other gear connected to air compressed engine. When piston reciprocates fluid inside cylinder come out through other set of NRVs which are connected to a pipe which serves as outlet.

In another embodiment of the present invention, a graphite layer inside the cylinder is provided for lubrication which helps in free fall of the piston

In another embodiment of the present invention, there are two rotatable gears a and b with grooves. The grooves are connected in a way that b inspires the rotation of a. The diameter of b is smaller than a. The screw rod is connected to a. On rotating b, a is rotated at an angle and hence the screw is pushed down accordingly.

In another embodiment of the present invention, positive displacement system has the movement with the screw rod attached to driven gear and the driving gear is the compressed air engine.

In another embodiment of the present invention, the positive displacement system has the movement with the rack & pinion attached to the driving gear of the compressed air engine.

In another embodiment of the present invention, the positive displacement system has the movement with the rope pulley attached to the unidirectional pulley system.. In another embodiment of the present invention, the positive displacement systems are such as but not limited to piston or plunger or any other similar devices. BRIEF DESCRIPTION OF THE DRAWINGS

The subject matter of the invention will be explained in more detail in the following text with reference to preferred exemplary embodiments which are illustrated in the attached drawings, of which

FIG. 1 shows linear guide way and bearing mechanism for water pumping according to the present invention:

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Fig. 1 describes the system and method for bore well, open well, creek and canal pumping using screw rod mechanism. The system consists of Screw rod 1, Driving gear 2, 12, Compressed air engine 3, Suction equipment 4, Inlet NRV 5, 8,. Piston 6, Cylinder 7, Suction equipment 9, Outlet NRV 10· , 11, Driving gear 12. The cylindrical vessel 7 is having a screw rod 1 type of circular mechanism which lifts water when rotated in clockwise direction. But as rotation of such designed cylinder requires high torque and needs a vertical axial support, certain direct current based motors and mechanical advantage principles are used in achieving the task. Inlet of the pump is connected to a pipe. The other end of connected pipe is dipped in closed well or bore well. This pipe is split into two parts. Each splited pipe is connected to an inlet NRV, which is connected to cylinder. There is a piston in cylinder which is connected to screw rod. This screw rod is displaced using internal threads of a gear which is driven by other gear connected to air compressed engine. When piston reciprocates, fluid inside cylinder comes out through other set of NRVs which are connected to a pipe which serves as outlet. There are two rotatable gears 2 and 12 with grooves. The grooves are connected in a way that gear 12 inspires the rotation of gear 2. The diameter of gear 12 is smaller than gear 2. The screw rod is connected to gear 2. On rotating gear 12, gear 2 is rotated at an angle and hence the screw is pushed down accordingly. This can be used for lifting of water or liquids or even gaseous fluids to pull out from lower depths to higher heights wherever required. The mechanism can lift water till 7th floor. According to another embodiment of the present invention, the invention may comprise three types of mechanical advantage systems namely chain & pulley, screw rod and rack & pinion.

According to an embodiment, the pumping technique has positive displacement systems like piston or plunger or any other similar devices and cylinder with 4 NRV's (Non returning valves) both for inlet and outlet of water at different positions on cylinder. Positive displacement system has the movement with the screw rod attached to driven gear and the driving gear is the compressed air engine. Two NRV's, which are for outlet, and located at one side of the cylinder top & bottom. For inlet, one NRV is at the base of the cylinder and another at the top side opposite to the outlet NRV. Inlet NRVs are connected to a pipe and this pipe is immersed into the water for suction of water. When the positive displacement system moves up, water is pumped out of one outlet NRV which is placed at the top of the cylinder and simultaneously water is sucked inside from the bottom inlet NRV through suction principle. When the positive displacement systems moves down water is pumped out from bottom outlet NRV and water is sucked inside through top inlet NRV. Large capacities of water can be lifted with minimal effort and mechanical power input is also low.

According to another embodiment, the pumping technique has a positive displacement system like piston and cylinder with 4 NRV's (Non returning valves) both for inlet and outlet of water at different positions on cylinder. Piston has the movement with the rack & pinion attached to the driving gear of the compressed air engine. 2 NRV's, which are for outlet and located at one side of the cylinder top & bottom. For inlet, one NRV is at the base of the cylinder and another at the top side opposite to the outlet NRV. Inlet NRVs are connected to a pipe and this pipe is immersed into the water for suction of water.

When the piston moves up, water is pumped out of one outlet NRV which is placed at the top of the cylinder and simultaneously water is sucked jnside from the bottom inlet NRV through suction principle. When piston moves down, water is pumped ,out from" b©£tpnj, outlet NRV and water is sucked inside through top inlet NRV. Large capacities of water can be lifted with minimal effort and mechanical power input is also low.

According to another embodiment, the pumping technique has a positive displacement system like piston and cylinder with 4 NRV's (Non returning valves) both for inlet and outlet of water at different positions on cylinder. Piston has the movement with the rope pulley attached to the unidirectional pulley system. This unidirectional pulley system is driven by compressed air engine. Counter weight is added to the piston for the downward movement. 2 NRV's, which are for outlet and located at one side of the cylinder top & bottom. For inlet, one NRV is at the base of the cylinder and another at the top side opposite to the outlet NRV. Inlet NRVs are connected to a pipe and this pipe is immersed into the water for suction of water. When the piston moves up, water is pumped out of one outlet NRV which is placed at the top of the cylinder and simultaneously water is sucked inside from the bottom inlet NRV through suction principle. When piston moves down water is pumped out from bottom outlet NRV and water is sucked inside through top inlet NRV. Large capacities of water can be lifted with minimal effort and mechanical power input is also low.

Claims

PATENT CLAIMS

1. A water pumping system and method comprising of a cylindrical vessel having a screw rod mechanism to lift water when rotated in clockwise direction, driving gears,

Compressed air engine, Suction equipment, Inlet NRV/s, Piston, Suction equipment, Outlet NRV/s, pipe to connect pump at one end and closed well at other end.

2. The water pumping system and method as claimed in claim 1 wherein, a graphite layer inside the cylinder is provided for lubrication which helps in free fall of the piston.

3. The water pumping system and method as claimed in claim 1 wherein, two rotatable driving gears are provided with grooves such that the grooves are connected in a way that the second gear inspires the rotation of first.

4. The water pumping system and method as claimed in claim 1 wherein, the diameter of second gear is smaller than first gear.

5. The water pumping system and method as claimed in claim 1 wherein, the screw rod is connected to first gear and on rotating second gear, first gear is rotated at an angle and the screw is pushed down accordingly.

6. The water pumping system- and method as claimed in claim 1 wherein, pumping of water comprises the steps of - splitting the pipe into two parts and connecting each part to an inlet NRV wherein NRVs are connected to the cylinder, connecting a piston in cylinder to screw rod, displacing the screw rod using internal threads of a first gear which is driven by second gear connected to air compressed engine, pumping the fluid inside cylinder out when piston reciprocates through other set of NRVs which are connected to a pipe which serves as outlet.