how does a mud pump pulsation dampener work brands

Mud Pump Pulsation Dampener is usually installed on the discharge line to reduce the fluctuation of pressure and displacement of the drilling mud pump.

Mud Pump Pulsation Dampener is a pneumatic device built into the outflow line of each UUD pump to dampen the pressure fluctuations resulting from the action of the pump. Although presented as a surge tank, this device is really a device that can be tuned to greatly diminish the output pulsations transmitted downstream from the mud pump. Unfortunately, the effectiveness of the pulsation dampener is a function of both output pump pressure and frequency of the pump pulsations.

All pulsation dampeners utilize one of two methods for mitigating energy produced by reciprocating pumps; compression or exchange. The traditional gas-charged dampeners use a compressible gas cushion, either by a gas over liquid or gas-filled diaphragms, bladders, or cartridge. As the reciprocating pump produces pressure spikes, the gas compresses, thus absorbing the pressure difference and smoothing the pumped media flow. For maintenance free pulsation dampeners, rely on energy exchange. There is a common misconception regarding maintenance free pulsation control devices that the pumped media is compressible enough to absorb the reciprocating pumps’ pressure spikes. This is not true. However, the maintenance free pulsation dampeners work by utilizing the kinetic energy exchange. This kinetic energy exchange can only happen if the pulsation dampener’s volume is large enough to dissipate enough energy to reduce the adverse effects caused by the reciprocating pump. This is why maintenance free pulsation devices require massive volumes to be effective. Sigma Drilling Technologies has developed a pulsation dampening system that utilizes both methods for reducing the harmful effects of positive displacement pumps, both compression and exchange.

A properly serviced pulsation dampener is critical for your mud pumps’ efficiency, safety, and performance. Unfortunately, there aren’t many resources available to educate personnel on executing safe and effective servicing procedures. Please review the following steps with your personnel for safe pulsation dampener maintenance.

Should you or your personnel have any questions regarding pulsation dampener maintenance, please don’t hesitate to ask. Sigma is more than happy to help you to ensure safe and proper care is being completed on your pulsation dampening equipment.

A pulsation damper is an equipment capable of playing a very important role in the use of double diaphragm pumps. As can be seen from the name, this accessory is aimed at reducing pulsations and vibrations during pump operation, thus ensuring a “continuous” and precisely non-pulsed flow rate and a reduction of vibrations on the system pipes.

A pulsation damper works thanks to the same compressed air that feeds the pump. The compressed air introduced into the counter-pressure chamber behind the membrane creates a pneumatic damping cushion that self-adjusts according to the stress exerted by the pressure pulse of the fluid generated by the pump.

EQUAFLUX dampers are used with fluids of high apparent viscosity even in the presence of solid parts in suspension. They automatically adapt to the system conditions, without manual adjustment or calibration. The high ability to minimize pulsations, vibrations and water hammers makes this component a suitable equipment for safeguarding the system, giving regularity to the outgoing flow. The wide choice of construction materials allows you to determine the best chemical compatibility with the fluid and / or the environment without neglecting the correct temperature range. The dampers are also available for use in a potentially explosive environment (ATEX certification).

Inside the hydraulic systems, the pulsations of the fluid can cause phenomena called water hammer consisting of pressure peaks caused by a sudden change in the flow rate inside the pipes or by the sudden closure of a valve. The effects of water hammer vary according to the size of the pipeline and the speed and density of the fluid but can often cause extensive damage to the elements of a system. To preserve the system from water hammer and vibrations, it is possible to use the pulsation dampers of the Equaflux series that can automatically adapt to the operating conditions of the pump.

Equaflux pulsation dampers are normally applied to pneumatic double diaphragm pumps. The latter, during the phases of use, can record pressure peaks which, if not controlled, can damage the elements of a system. The main benefits associated with the use of pulsation dampers can be summarized in the following points.

The application of diaphragm pumps equipped with pulsation dampers refer to the entire process industry: hydraulic systems, use in chemical transformation processes, use within the petrochemical, mining sectors and much more. The EQUAFLUX series is also available with ATEX certification and therefore can be used directly within sectors with the presence of explosive risks.

Pulsation dampers are very versatile tools whose use can vary according to the needs of the operating processes and application sectors. For this reason, a sales team is at your disposal to support you in choosing the most suitable configuration for your needs. Contact the Debem team now.

A Pulsation Dampener is an inline dampening device used to smooth out pulsations in a pump’s output. They are used alongside a pump as a mounted accessory to help achieve certain flow rates for an application.  They can be used with a variety of Positive Displacement Pumps which typically generate a pulsed flow (Diaphragm Pumps, Peristaltic Pumps, Dosing Pumps, Piston Pumps etc)

Pulsation Dampeners are required in some process applications when the customer needs smooth flow into the next phase of the production line, for example, to get an accurate reading through a flow meter or to fill a hopper consistently. On the flip side, Dampeners can be used to reduce water hammer effects through pipework. Water hammer is where the pump causes the pipes to vibrate and potentially fail, a smooth flow from a Pulsation Dampener reduces this.

For example, Diaphragm Pumps inherently produce a very turbulent discharge flow meaning that in some instances a Pulsation Dampeners are required to give a smooth pulse-free flow.

In the Tapflo UK range, we focus on Pulsation Dampeners for Diaphragm and Peristaltic Pumps, although we can also supply them for other pump technologies.

The Active Pulsation Dampener works by supplying an equal pressure to the pulsation supplied by the pump. The Dampener supplies this pressure during the low-pressure points of the pump’s operation, as the pressure drops between pump strokes creating a pulsating flow. The pressure supplied by the dampener decreases pressure variations, therefore producing a steady flow from your Diaphragm Pump. You can see the pressure drops and Pulsation Dampener benefits in action in the diagram below.

Tapflo supplied a 2” Air Operated Diaphragm Pump to a bleach factory, the customer used the T400 PTT for a couple of days and then called us to explain that the bleach line, running along the roof of his production facility, was shaking. Due to the nature of the product being pumped health and safety on site could not allow this to continue.

To support our Peristaltic Pump customers, Tapflo offers an in-line Pulsation Dampener for our PT and PTL Series’. They can reduce the pulsation of your PT Pump by as much as 90% to reduce the vibration and water hammer effects on pipework. Another benefit of this accessory is its ability to be installed on-site horizontally or vertically for flexible installation.

Our custom-designed systems will absorb excess energy pulsing through the pump and piping system by creating a low-pressure area to dampen the excess shocks and vibrations. Because a pulsation dampener regulates the release of energy, your system will be better protected and run more smoothly. After installing a pulsation dampener, customers notice that their system:

When you choose to work with our team, we’ll help you find the right specifications across our product series, allowing us to customize features, including:

A mud pump (sometimes referred to as a mud drilling pump or drilling mud pump), is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi or 52,000 kPa) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling and manufactured according to API specification 7K.

The advantages of the drilling mud pump include the ability to move high-solids-content fluids laden with abrasives, the ability to pump large particles, ease of operation and maintenance, reliability, and the ability to operate over a wide range of pressures and flow rates by changing the diameter of pump liners and pistons.

The fluid end includes cylinders (module), valve assembly, cylinder liners, piston assembly, suction manifold, discharge manifold, piston rod, pulsation dampener assembly, etc.

As an important equipment for oilfield drilling operation, a drilling mud pump delivers circulating high-pressure drilling fluid or drilling mud to the bottom of the oil well, flushes the bottom of the well, breaks the rock, cools, lubricates and clean the drill bit, and carries the cuttings back to the ground.

The drilling mud is also used to suspend and carry out drill cuttings from the drill bits as it is brought in and out of the hole. This ensures that the drill bit does not clog and overheat, and makes the entire drilling operation smooth and safe.

Rotational power is supplied to the mud pump through an external power source like a diesel engine or electric motor. The power end of the mud pump converts the rotational energy through a crankshaft to a reciprocating motion of pistons.

The pistons move back and forth in mud pump liners, exerting a force on the cylinder chamber. During the retraction of the piston, valves open to allow the fluid to be drawn into the cylinder. Once the piston has fully retracted, it is pushed back into the cylinder.

At this time the intake valves are closed and the exhaust valves open, allowing the piston to force the fluid out of the cylinder under pressure. Once the piston reaches its maximum depth into the cylinder, the exhaust valves close and the process repeats.

For Fluid End: piston rod clamp, piston rod, piston assembly, cylinder cover, liner, liner flange, wear plate, cylinder, valve assembly, valve cover, valve guide, flashboard assy., cylinder cover flange, cylinder head, gaskets, studs, nuts, seal rings, pulsation dampener, bladder, discharge manifold, suction manifold, etc.

The EQUAFLUX 100 pulsation dampener is installed downstream of the pump to reduce pulsations and create a smooth and laminar flow. The casing can be manufactured in many materials, including; polypropylene, PVDF, PPS-V and stainless steel 316. The diaphragms come in PTFE as standard, the combinations of material options make this pulsation dampener suitable for use with a wide range of fluids.

A pulsation dampener works by creating an area of low pressure that absorbs the pulsations emitted by the pump. A diaphragm is fitted that has a cushion of compressed air, this flexes and absorbs the pulsations. The EQUAFLUX 100 is connected to the air line and fed with compressed air, the diaphragm and air work in conjunction and automatically adjust the pressure to minimise pulsations in the pipework.

The EQUAFLUX 100 pulsation dampener can be utilised for many fluids in the industrial and marine markets, including; fuels, oils, chemicals, acids, waste water, glues, resins, paints and inks. Applications for this pulsation dampener include; mechanical and metalworking industry, ceramic industry, petrochemical, waste water treatment, biofuels, marine (bilge, slop, sewage), mining, textile industry, automotive industry, paint industry, cosmetic industry, cleaning industry and ink and print industry

This pulsation dampener is Atex zone 2 as standard meaning it is suitable for operation in non safe potentially flammable environments. As an option, this can can come in an Atex zone 1 version if required.

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Bruce Suggs, vice president of marketing and sales for White Star, speaks with DC editorial coordinator Katherine Scott about White Star’s quadraplex mud pump at its headquarters in Waller, Texas, on 17 February.

Drilling Contractor visited the manufacturing facility of White Star Pump Company in Waller, Texas, on 17 February to view a demonstration of the company’s quadraplex mud pump, which was designed to address the challenges of the conventional triplex pump.

“After working on all the different brands of (triplex) pumps, it became evident that they all had the same common issues,” said Bruce Suggs, vice president of marketing and sales for White Star. “(We) tried to build a triplex and ended up with the Quatro.”

Instead of taking an existing triplex pump and trying to make it better, White Star approached the project with a clean-sheet design. The Quatro pump features a width of only 82 in. and easily fits on a standard-width trailer, a potential advantage in areas with limited space, such as on offshore rigs and in shale plays like the Marcellus. With the fluid modules sitting inside the frame, change-out time can be reduced to 23 minutes versus up to 10 hours for conventional triplex pumps. The quadraplex pump also uses a fully assembled crankshaft that requires no castings or welding. Using a crankshaft that is fully assembled and supported by modern bearing placement dramatically reduces crankshaft bending and cracking.

Additionally, the Quatro is equipped with two pulsation dampeners, one for each pair of pistons, unlike the triplex, which carries only one. This allows mud to be dampened before it gets to the strain across, creating a quieter, smoother fluid flow and reducing vibrations.