Wiki source code of Sampling pump
Version 13.1 by TerraIndex TerraIndex on 2021/09/09 13:01
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| 9 | Beforehand on sampling sometimes water needs to be removed and to sample also the water needs to be extracted from the subsoil. Various kinds of pumping systems are used for these operations, some are explained and listed below. | ||
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| 13 | = Bailer pump = | ||
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| 15 | The bailer pump is designed for prepumping of the subsoil. It recovers sand, gravel, gun debris or other loose fill from above or inside any subsurface flow control device. | ||
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| 17 | The bailer pump operates on the fundamental lift pump and piston principle. During the upstroke of the Bailer, suction is created, drawing in debris through the Bailer Check Sub where it is retained. A ball check valve, integral to the internal rod assembly allows maximum downstroke for continuous debris recovery until the chamber is full. | ||
| 18 | \\**Applications** | ||
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| 20 | * Recovering loose sand, gravel or gun debris from inside flow control devices | ||
| 21 | * Obtaining bottom hole debris samples for analysis [[Sandbox Test Page 3>>terraindexdevelopment:Sandbox.TestPage3]]] | ||
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| 23 | = Deepwell pump = | ||
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| 25 | A pump designed for pumping water from wells with water levels more than about seven meters below the pump location. Such pumps are designed so that the pump cylinder is near the well water level and the water is forced to the surface rather than being sucked to it. | ||
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| 27 | = Handpump = | ||
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| 29 | This is a pump operated by hand, can be any type of pump. | ||
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| 31 | = Ball valve pump = | ||
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| 33 | When pumping systems are part of very long piping systems, pump control valves are necessary to control water hammer or pressure surges. Pump control valves are typically quarter‐turn valves equipped with slow opening and closing electric motor or hydraulic cylinder actuators. The actuator is powered by an external electric or pressure source and must be electrically connected to the pump circuit for control purposes. The motion of the closure member in these valves is controlled by the power actuator so they are not subject to fluttering or slamming like automatic check valves. Battery systems or pressurized accumulator systems can be used to enable the pump control valve to close after a power failure. | ||
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| 35 | = Peristaltic pump = | ||
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| 37 | A peristaltic pump, also commonly known as a roller pump, is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained in a flexible tube fitted inside a circular pump casing. Most peristaltic pumps work through rotary motion, though linear peristaltic pumps have also been made. The rotor has a number of "wipers" or "rollers" attached to its external circumference, which compress the flexible tube as they rotate by. The part of the tube under compression is closed, forcing the fluid to move through the tube. Additionally, as the tube opens to its natural state after the rollers pass, more fluid is drawn into the tube. This process is called peristalsis and is used in many biological systems such as the gastrointestinal tract. Typically, there will be two or more rollers compressing the tube, trapping a body of fluid between them. The body of fluid is transported through the tube, toward the pump outlet. Peristaltic pumps may run continuously, or they may be indexed through partial revolutions to deliver smaller amounts of fluid. [1] | ||
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| 39 | == Working principle == | ||
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| 41 | The operation of a peristaltic pump is based on pipe pressing. The blackmail operation of the pipeline is done by a rotating wheel in the tube is located in the pipeline. Several pipe pressure points determine the accuracy of the pump. The elasticity of the pipeline causes its opening and produces a sub-pressure by increasing the volume that allows suction of up to approximately 0.9 bar. The actual pumping principle, called peristalsis, is based on alternating compression and relaxation of the hose or tube, drawing content in and propelling product away from the pump. Combining these suction and discharge principles results in a powerful self priming positive displacement action. Peristaltic pumps are designed for the dosing and transfer of various liquid substances, from chemicals, through sludges to ingredients and food products. [2] | ||
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| 43 | = Referenties = | ||
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| 45 | * [[https:~~/~~/en.wikipedia.org/wiki/Peristaltic_pump>>https://en.wikipedia.org/wiki/Peristaltic_pump]] | ||
| 46 | * [[https:~~/~~/www.mrclab.com/what_is_a_peristaltic_pump>>https://www.mrclab.com/what_is_a_peristaltic_pump]] | ||
| 47 | * [[https:~~/~~/www.peakwellsystems.com/products/well-intervention/wellbore-cleanup-systems/pump-bailer.aspx>>https://www.peakwellsystems.com/products/well-intervention/wellbore-cleanup-systems/pump-bailer.aspx]] | ||
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| 54 | **Contents** | ||
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| 56 | {{toc/}} | ||
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