Archive for the ‘Pump Technology’ Category

Triple the service life by a stator adjustment unit

Thursday, April 26th, 2018 von admin

The xLC unit was added to the product portfolio of the Nemo progressing cavity pump from Netzsch. This triples the service life of the pump, particularly when conveying difficult, abrasive media. When wear occurs in the rotor-stator system, this new unit allows the performance of the pump to be re-established by adjusting the preload between the conveyor elements.

 

 

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New plunger pump head reaches up to more than 1,000 bar

Friday, April 13th, 2018 von admin

The plunger pumps feature an integrated gear, which enables very compact construction with maximum efficiency.

For the purpose of upgrading a cracker in a Chinese refinery a total of five plunger pump skids should be brought into operation by Lewa. Those in charge of the project opted for three triplex and two quintuplex plunger pumps in accordance with the API 674 standard. These pumps are equipped with the new KMC-L pump head with reduced clearance volume. This head consists of a single forging: The suction manifold is integrated as a result, allowing for a reduction in the sealing surface and thus in any potential leak points. An additional advantage is the fact that the suction side can be designed to handle backpressure, eliminating the need for a safety valve in the suction line. The new design makes it possible to realize pressures up to 1,075 bar. All pumps in use have been produced in Germany and mounted to a complete system in the Chinese plant.

These plunger pumps have a drive output of 260 kW and a flow rate of 25 m3/h. The suction pressure loss of the pump heads is very low, therefore a low suction pressure is needed and it is often possible to operate without a booster pump.

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Pumping hazardous liquids with environmental safety in mind

Wednesday, April 11th, 2018 von admin

Fig. 1

Sero PumpSystems GmbH is a German based manufacturer of side channel pumps.  These pumps are designed for low flow and medium to high pressure / head applications.  Side channel pumps are self priming, able to handle up to 50% entrained gas and require low NPSH.  Sero provide reliable solutions for oil and gas production / processing, petro-chemical / chemical services, marine applications and many other industrial pump requirements.

  • The flow range is 0.3 to 42 m³/h with heads of 30 to 1,100 m.
  • Temperature range is – 60 to + 220 °C.

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Pumps for wet flue gas desulfurization

Tuesday, April 10th, 2018 von admin

A cement factory in Texas was among the first in the USA  to install wet flue gas scrubbers in order to reduce the sulfur dioxide emissions. This is a demanding application for pumps because the gypsum slurry that “scrubs” the gas is highly abrasive and corrosive.

Special pumps with housings and impellers made of mineral cast prove to be a perfect solution here.

Wet Flue Gas Desulfurization Scrubber systems are a vital component in various industries due to strict environmental regulations. First applications were coal fired power plants and waste incineration plants. Today, other industries utilize wet scrubbers in their day to day operations as well to scrub flue gas emissions from burners that utilize coal as a fuel source.

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Sulzer at Achema 2018

Wednesday, March 21st, 2018 von admin

Sulzer will be offering chances to discover the latest developments in pumping technology and rotating equipment services.

At Achema in Hall 8.0, Stand A71 Sulzer offers an insight into the latest designs as well as developments in asset management and pump optimization software. One of the latest additions to the product lineup is the heavy duty axial flow CAHR pump range which is for applications involving highly corrosive liquids and slurries.

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Predicting Performance Curves of Centrifugal Pumps In the Absence of OEM Data

Wednesday, January 3rd, 2018 von admin

Technical paper by: Jayanthi Vijay Sarathy

M.E, CEng, MIChemE, Chartered Chemical Engineer, IChemE, UK

Chemical and Mechanical Engineers in the oil & gas industry often carry out the task of conducting technical studies to evaluate piping and pipeline systems during events such as pump trips and block valve failures that can lead to

  • pipes cracking at the welded joints,
  • pump impellers rotating in the reverse direction and
  • damaged pipe supports due to excessive vibrations

to name a few. Although much literature is available to mitigate such disturbances, a key set of data to conduct transient studies are pump performance curves. A pump performance curve is a plot between pump head and flow rate. In Greenfield projects, when no pump vendor data is available, a necessity arises to use performance curves to conduct pipeline/piping studies to check for parameters such as design pressure.

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Heat transfer oil circulation pump acc. to DIN EN 733

Saturday, December 9th, 2017 von admin

Fig.1 The new NKX heat transfer oil circulation pump

The pump manufacturer Dickow has developed a new pump line NKX for circulation of thermal oil. The pump casing is designed for 16 bar and 350 °C. The new pump line extends the application limit of the previous NKLs-type. The new NKX will replace the series NKLs with exactly the same dimensions in future.

The NKX is used as a circulation pump for hot oils in industrial heating plants/units. The performance range covers capacities up to 400 m3/h and differential heads up to 90 m in 50 Hz services; and capacities up to 2,500 US-gpm and differential heads up to 400 ft in 60 Hz services. The dimensions and performance range of these centrifugal pumps are according to DIN EN 733, that means range is subdivided into different pump sizes in order to achieve best efficiency for all service conditions inside the envelope.

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Monitor your pump online – at any time, at any place

Friday, December 8th, 2017 von admin

Fig. 1

The generation of maintainers who check the condition of pumps on a daily basis by listening and touching the equipment is dying out. Nevertheless, pumps must operate reliably. To solve this problem, BestSens has developed the Bearing Monitoring System, BeMoS for short (Figure 1).

BeMoS monitors roller bearings in machinery and plants from the very first second of operation. What is so special about it is the underlying technology:

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Pump Engineer – Study Courses 2018 in German and English

Thursday, December 7th, 2017 von admin

Since 2005 the study programme for pump engineers provides specific training and know-how in terms of academic extra occupational, distance-learning study courses. During these 12 years approximately 30 lecturers have trained more than 300 pump experts coming from different branches – be it manufacturers, operators or planners.

According to Prof. Dr.-Ing Helmut Jaberg, who initiated the pump engineer study programme, the reasons for its success are the following: “The high level of appreciation with regard to our training offers can be measured by the fact that companies, whose employees have already graduated from the study courses, are increasingly encouraging their staff to take this training. Thus, the German study course which started in July 2017 reached the record number of 37 participants. We are really glad to see that companies repeatedly send employees to participate in our programme. Obviously the way it is performed – with a certain rigour and yet with a good sense of proportion – is well received by them.”

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How screw pumps work

Wednesday, December 6th, 2017 von admin

Blackmer is showing in YouTube videos how its S Series

  • twin screw pumps and
  • triple screw pumps

are working. Offered with or without external timing gears and bearings, the S Series pumps are self-priming, double-ended positive displacement pumps.

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