![]() ![]() Thus, a maximum of 0.80 GPM will be pumped if a hydraulic ram pump is used under these conditions.Table 1 lists characteristics of hydraulic ram pumps which will help when making your selection. ![]() The vertical elevation from the pump to the tank at which the water is to be delivered is 60 feet. The pump is located so that the vertical fall along the drive pipe is 8 feet. V = available flow through the drive pipe (GPM) Į = vertical distance that the water is to be raised (ft.) Ġ.60 = efficiency of a ram installation (this will vary).Īssume that a ram pump is to be installed on a creek which flows at a rate of 10 GPM. Q = pumping flow rate gallons per minute (GPM) į = vertical fall from the drive pipe (ft.) The relationship between pump output and water source can be expressed as follows: Hydraulic Ram Installation For A Farmstead. The speed of flow will depend on the change of elevation or fall between the inlet to the drive pipe and between the inlet to the pump.įigure 2. The quantity should be determined by measuring the water source flow. The pump flow rate and pressure depend on the quantity and speed of flow of the water source. The ram pump you select should produce the flow rate needed for your particular situation. It also allows the proper amount of air to be maintained in the air tank so that its expansion and contraction allows the water to flow smoothly through the delivery pipe rather than surging strongly with each stroke.ĭepending upon the quantity and velocity of the flow, between 25 and 100 strokes will occur per minute as the pump operates. This prevents the air chamber from becoming water logged. That pressure is released as the water flows through the delivery pipe to its destination.ĭue to the design of the valve system, a small amount of air is trapped and forced into the air chamber with each stroke. As the rebound, or expansion of compressed air begins, the interior valve closes, trapping the water under pressure in the air tank. At the proper operating velocity, equilibrium is not approached gradually rather, the water surges into the tank, compressing the air in the tank, and then the air attempts to rebound. Water moves into the air tank until the pressure inside the air chamber equalizes and overcomes the driving force behind it. The momentum of the flowing fluid forces water into the air chamber under pressure. Water is diverted through an interior valve and into the air chamber. When a suitable high velocity is obtained, the valve suddenly closes. It is diverted around the pump through an exterior valve until the maximum velocity is obtained for existing flow conditions. In a hydraulic ram pump, water flows down the drive pipe to the ram. They are: (1) a water supply from a lake, spring, creek, canal, or artesian well (2) a drive pipe (diverting water from the source to the pump) (3) a hydraulic ram pump and (4) a delivery pipe to the discharge point. The components of a hydraulic ram pumping system are shown in Figures 1 and 2. Water can be lifted to elevations of up to 400 feet, depending upon the quantity and velocity of water flow at the source. ![]() When hydraulic ram pumps are properly sized and installed, flow rates of 14 gallons per minute or 20,000 gallons per day are possible. It is also practical where conventional power for pumping water is not available, such as remote areas where the installation of electric service would be uneconomical or where an internal combustion engine would be impractical. The hydraulic ram can be used where small quantities of water are required, such as for domestic water supplies or livestock watering. The hydraulic ram pump is a motorless low-flow-rate pump which uses flowing water as its energy source. Ted W.Tyson, Biosystems Engineer-Irrigation ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |