ourpump.com blog

Ontario Beach seaweed is always a headache the other swimmers, and now the government has come up with a good way to use the pump to clear the algae

Algae, the bane of swimmers at local Lake Ontario beaches, were thick enough that the area was closed to swimming for the day.

But for a small crew of workers who gathered at the beach’s east end, the algae were almost a welcome sight — for it provided one last chance to test a system to pump algae-laden water away from the beach.

The monthlong test, conducted by the U.S. Army Corps of Engineers and Monroe County, was intended to see whether algae could be removed from near-shore waters, thus minimizing the chances that the foul-smelling aquatic growth would force closure of the beach.
The system uses a portable pump to suck water from the east end of the beach and deposit it in the nearby Genesee River, which carries it out into Lake Ontario.

The general assessment was that the system, funded with $230,000 from the corps, worked well at removing algae that otherwise would have festered on the beach, possibly prompting closures or aesthetic complaints.

“We’re very happy with the results. I think we have shown that it can work,” said Bryan Hinterberger, project manager for the Army Corps in Buffalo.

That was before the final challenge on Wednesday, the day the test was scheduled to end. Overnight Tuesday, a wind shift had allowed copious amounts of algae to drift toward the sandy beach, creating a larger and more spread-out algal assault than others during the test.

So the pump, connected to an intake attached to the end of a long-armed excavator, was fired up. A front-loader motored back and forth through the surf just off the shore, herding algae-tainted water toward the intake.

By day’s end, thanks partly to uncooperative winds and waves, officials had decided to extend work into today to remove remaining algae.

“There might be times when it’s going to be a more efficient operation than others because of the meteorological conditions, but my sense was that it was working today,” said Charles Knauf, a county environmental health analyst working on the test.

Public swimming areas on Lake Ontario have been bedeviled for years by algae that grow on the lake bottom, break loose and wash ashore. By making the water cloudy and sometimes creating a habitat for bacteria, algae contribute to beach closures.

Ontario Beach has it bad because the west pier at the river mouth traps algae that otherwise would be carried away by the lake’s current.

Beginning more than a decade ago, the Corps of Engineers spent more than $2 million investigating various ideas for addressing the problem. One approach was construction of a large fixed-in-place pumping system, but its $10 million cost was considered far too high by local officials, who would have to foot the bill for any permanent algae-removal system.

This summer’s test, billed as one final effort to find an affordable solution, involved a small, portable system that could be deployed when needed. Two or three people are needed to run it, but some of them work at the beach already.

There’s no cost estimate yet of how much it would cost to make the system a fixture at the beach, though Knauf said it likely would be “extremely inexpensive” compared to the larger fixed pump system.

Ironically, the test period was extended because, until recent days, there had been little algae to test.

“The conditions right until two weeks ago were just astronomical,” Knauf said. “In general, conditions have been the best I’ve seen in 15 years down there.”

So far this summer, Ontario Beach has been closed only five days. Durand-Eastman beach, to the east, has closed only three days.

Fighting against global warming and increasing greenhouse gas concentrations, the regimentation of CO2 emission are the justification for the European Commission to set up the European Directive 2005/32/EC. This and several amending directives describe a framework of eco-design requirements for energy using products asking for increased efficiencies. New standards and norms have been written and others have been updated which now need to be considered in new product engineering projects. Furthermore, energy costs are rising constantly and will continue to rise in the future.

Considering these aspects the design of modern furnaces has changed recently. New designed vacuum furnaces are operating much more efficient than older furnaces. Also modern steel degassing plants use more and more mechanical vacuum systems instead of energy-wasting steam ejector systems. Also here, modern vacuum pumps and pump systems, designed to support these energy saving attempts, have proven their capabilities.

High reliability can be reached by using traditional technologies as e.g. oil-sealed rotary piston or rotary-vane pumps, roots blowers and diffusion pumps, but also also more modern technologies such as dry screw pumps already have a proven track record to work most reliable even under harshest conditions. Today’s standard dry pumps are screw pumps with variable pitch rotor design. Continues compression along the rotor length minimizes the energy demand. Older technologies with constant screw pitch or even dry pumps based on multiple stages of roots- or claw type rotors, have significantly higher power consumption due to design and pumping principle. But even the plurality of today’s screw-pumps with variable pitch differs a lot from each other. Most pumps of the 600 m³/h class demand app. 10 kW power at typical furnace operation pressures below 1 mbar, which is a clearly higher value as those of a comparable rotary-vane pump.

The Dryvac pump series of Oerlikon Leybold Vacuum are optimized with regard to the mechanical rotor design, the electrical motor concept and by selection of a perfectly matched build-in frequency converter.The achieved result in energy saving is substantial, as the pump only consumes 6.9 kW at 1 mbar, is even more energy efficient than a rotary-vane pump and therefore is the new bench mark for power consumption in the market. The build-in frequency converter also offers potential for additional savings and higher process control. Many process steps do not require “full-power” suction speed, especially during operation at rougher pressures, e.g. during carburizing.

Soft start and ramping functionality can be realized with the variable frequency drive. Chamber pressure can be controlled by varying the rotational speed. The customer can even realize a process specific “standby condition” considering certain valve positions to save for example the volume of supplied Nitrogen. Next to these environmental issues, the modern design of the Dryvac eliminates sensitive components as shaft- seals or couplings which clearly increase robustness and reliability of the pump.

Modern designed pumps improve the energy consumption, but several measures can also improve the situation with traditional pumps. Oil-sealed pumps and roots-pumps need to be equipped with newest standard IE2-motors and can be operated with frequency converters to deliver just as much suction speed as required. Oil-diffusion pumps can be equipped with innovative control-systems which can identify the actual power demand and regulate the power supply of the heaters accordingly. These measures diminish the power consumption of a diffusion pump by more than 30 per cent.

The concave shape of the barrel allows the pump to be attached direct to the frame without the need for separate pump clips or a bottle-cage-mounted holder. A good idea in principle, but this assumes your frame tubes are cylindrical or ovoid - at least in the area where you want to fix the pump. In most cases, assuming you’ve got two bottle cages, this means putting the pump on the underside of the top- tube, but that’s only possible if your back brake cable runs along the upper side.

Once you’ve got over that hurdle, the pump is secured by two nylon straps with Velcro tabs. Fitting the pump before a test-ride, I couldn’t get the Velcro straps tight enough, and the pump rattled very slightly. There are small rubber studs on the pump to prevent damage to the frame, but these seemed not totally effective at stopping movement. Actually, they’re not rubber, but something called Kraton, which is also used on things like knife handles and golf clubs. All good stuff; perhaps if these studs were bigger, the rattling wouldn’t occur.

Having said that, the BBB website indicates that the pump comes with a rubber strap, rather than the nylon straps that came with our test model. This should help keep the pump tight against the frame. I got round the problem by fixing the pump onto my frame with insulation tape. Employing the same technique, you could also possibly attach the pump to a seat-tube or down-tube, thereby avoiding the need for a top-tube with cable on the upper side.

The Oval Integrate pump comes in three sizes. A true mini version (230mm), a large version (430mm) and a medium (330mm) which we’re testing here. The medium version seems to be a good compromise and avoids the issues common to all minipumps (low weight but takes all day to get a tyre up to pressure) and full-sized pumps (get the tyre up quickly, but weigh a lot and don’t fit many modern frames). The slim-line design of the Oval Integrate also compares well against some other medium-sized pumps which are bulky and spoil the lines of a nice bike.

Medium or not, the concave shape of the barrel inevitably means it has a smaller capacity than a cylinder the same diameter, so it still takes a while to get a road tyre up to pressure. In the road.cc lab, it took 220 thrusts on the medium sized pump to get a
700×23 tyre up to 100psi. And the last 10psi were a bit of an effort to get in - maybe not surprising, as the pump’s maximum psi is given as 115psi. If you’re using it for get-you-home emergency situations, then 70psi will be fine and much easier to attain. And if you’re touring or commuting and normally run your tyres at around 70psi anyway, then all this high pressure talk is academic.

Whatever pressure you go for, pumping is made more comfortable by the shape of the handle, which swivels out to form a broad pad in the palm of your hand (and also has a covering of Kraton), although if you don’t hold it firmly it rocks on its pivot, which is annoying and actually makes pumping harder. The piston also rocks a little in the barrel when you pump hard, but the seals seem good, and there’s no sign of air escaping. The pump has a direct push-on fit with a small lock/unlock lever, so no hose to screw separately onto the valve.

The Oval Integrate’s unusual design and attachment technique takes a while to get your head around, and you need to make sure you’ve got the pump tightly and safely fixed to your frame, but if you don’t like genuine mini pumps (because they’re too slow) or some other medium-sized pumps (because they’re too bulky and look ugly on your bike), or full-size pumps (because they’re too heavy or don’t fit your frame), then the medium-sized Oval Integrate might be a good option to consider.

All the Oval Integrate pumps are available in black or silver, with the medium retailing at around £25 in bike shops, and around £20 at the usual on-line stores. I was going to say ‘this is a fair price compared to other similar products’. But as there’s nothing
else like it, I’ll just have to say it’s a fair price, period.

Water pumping station in order to start the pump light load is usually required to close the pump outlet valve, and then start the water pump, when its speed up to rated speed then, and then gradually open the outlet valve; system in order to prevent the media back,You must also pump outlet check valve; as ordinary swing check valve closure often produce instantaneous water hammer pump system-threatening accident, therefore I have set the device to effectively eliminate water hammer.

More use of electric current butterfly (gate) valve supporting micro Slow Close Check Valve to achieve these goals, but in the field of electric butterfly (gate) valve closed often appear lax, the motor burned out, and gear transmission corruption and other failures:Micro Slow Close Check Valve narrow scope of adaptation, can not adapt to traffic, large changes in pressure, and the adjustment needle easily blocked, leading to damper movement and other faults can not affect the normal safe water supply.

A multifunctional pump control valve Profile

Multifunctional Pump Control Valve is a new hydraulic control valve, a valve can replace electric butterfly valve, gate valve, check valve and water hammer eliminator three kinds of devices. It can automatically open when the pump is slow to open, stop the pump when the speed of closing and slow closing, without any electrical power and control and other human, and without hydraulic device.

Multifunctional Pump Control Valve The main advantages are:
(1) No action control. Before and after pump start and stop using the water pressure when the valve as the control power, with open and close automatically with the pumps open and close function.
(2) the process of valve opening and closing action can effectively prevent water hammer due to the increase of the pressure wave generated by an accident. According to the survey and measured field use, stop pump water hammer pressure peaks were less than 1.3 times the working pressure.
(3) No on-site commissioning for a wide range of conditions.
(4) Basic maintenance-free. Due to a valve replacement three valves, maintenance and repair workload greatly reduced.
(5) resistance loss. The streamlined, wide-body design, the resistance loss than similar foreign products by 50% or more, such as DN200 products in the v = 2m / s flow rate of economic conditions, the multifunctional pump control valve loss of 0.7m, while the similar foreign products of 1.5m.

Second, multifunctional pump control valve structure and working principle

2.1 Structure
Multifunctional pump control valve structure shown in Figure 1, the main valve and exterior accessories. Including the main valve body,main valve plate, slowly closing the valve plate, stem, seat and diaphragm controller (with valve cap, diaphragm seat, diaphragm, diaphragm plate): exterior accessories include control valves, filters , emptying valve, micro valve. Which micro check valve is specially designed accessories, located in the direction of its limited flow-return hole.

2.2 Works
Pump before the start of the valve outlet pressure in the main valve plate, valve in the closed position, while the upper diaphragm chamber controller connected pressure water, then with the valve chamber under low pressure inlet connected.

Pump starts, the valve inlet pressure gradually increased, while the water pressure through the valve inlet side of the connection tube slowly into the diaphragm chamber under control, the slow realization of the main valve plate opening, opening speed can be adjusted through the control valve.

Pump shutdown, the valve inlet pressure to reduce, when close to zero flow, the main valve plate in its own gravity quickly closed. Reduced due to the valve inlet pressure, the valve outlet pressure water through the connecting pipe into diaphragm chamber on the controller, under water through the valve inlet chamber side of the connecting pipe back to the valve inlet pressure, slow closing valve plate slowly closed, Slow off time can be adjusted through the control valve. The speed of closing the main valve plate closing the valve plate of slow relaxation in line with a two-stage closed-off law, can effectively eliminate water hammer.

Third, several technical problems

3.1 connecting pipe design components
The role of micro check valve is to ensure that the valve open longer than the motor start-up time, light load motor start; the same time to avoid opening the valve too fast and cause water hammer Kai pump. Valve open time by the control valve pressure settings according to scene conditions.
Diaphragm control valve controller can be adjusted up and down the chamber and out of the water flow rate to adjust slowly closing time; off controller can overhaul patch; in normal operation the pump can also manually operate the valves to open and close the valve.
Membrane filter is to ensure that the controller up and down the chamber of water cleanliness. As the valve is in an open process flow back and forth out of itself with the backwash effect, it can also be used for medium poor condition.

With more and more heart disease, the use of heart pumps more and more frequent.When an ailing heart can’t move blood on its own, an implanted pump can help keep it flowing smoothly. But there’s a major drawback: the power supply is large, must be housed outside the body, and is usually connected to the pump via an electric cord that runs through the abdominal wall—a source of constant irritation and potential infection.

Researchers have now demonstrated a prototype wireless heart pump that eliminates the need for the cord altogether. And unlike some wireless implants, it is reliable and efficient over a range of distances, from a few centimeters to a meter or more.

The pump was developed by Josh Smith, associate professor of computer science and electrical engineering at the University of Washington, and Pramod Bonde, a heart surgeon at the University of Pittsburgh Medical Center, and presented at the American Society for Artificial Internal Organs’ annual meeting in Washington, D.C., last month.

Most implanted medical devices, such as pacemakers and defibrillators, can work with internal batteries, but heart pumps and artificial hearts require more power. An artificial heart called the AbioCor is powered wirelessly, but the power transmitter,
affixed to the skin, has to stay aligned with the receiver inside the body. “Just a few millimeters of separation and misalignment results in energy loss,” says Bonde.

Smith and Bonde’s new wireless pump gets around the alignment problem by modifying the way power is sent and received. The external power transmitter is a metal coil that emits an oscillating magnetic field around 6.78 megahertz and 13.56 megahertz. The receiving coil inside the body is tuned to resonate with the frequency of the transmitting coil at about 80 percent efficiency. When the distance between the coil changes, however, the efficiency drops, unless it is possible to adjust the frequency over which the power is transferred. Smith has designed a feedback system that maximizes efficiency by automatically adjusting the frequency of the power transfer.

Transferring power via a magnetic field instead of an electric field avoids harmful heating, but there is still a slight rise in temperature from a residual electric field. Smith says that eliminating some of the coil packaging will ultimately reduce heating to
a negligible amount.

The new wireless power system could free up heart-pump designers to innovate. A power supply that can operate over a range of distances could be worn in a vest or even installed in a house. Smith and Bonde envision a whole-home system in which a person can move freely without wearing a power supply. A small implantable battery could also offer a half-hour of backup power.

Recent work in wireless power transfer has focused mainly on increasing efficiency, says Matt Reynolds, assistant professor of electrical and computer engineering at Duke University. “Adapting to movement by tuning the operating frequency and maintaining resonance,” he says, “is also critical to achieving widespread acceptance of this technology.”

Recent Chevron plans to pump oil with solar power

Chevron will tap sunlight to help it get more oil out of the ground in California. The company will partner with BrightSource
Energy—a solar start-up that Chevron helps fund—to develop 29 megawatts of thermal power from the sun’s rays.

The idea is simple (and ancient): use mirrors to concentrate the sun’s rays onto a water tank, turning said water to steam. The steam
can then be used to turn a turbine and produce electricity or, in this case, pumped down a well to loosen heavy oils.

The plant slated for the Coalinga Oil Field near Fresno will employ at least 3,000 mirrors to concentrate light on a more than
300-foot tower with water inside. Chevron hopes it will be fully operational by the end of next year. “The only problem we have is
when it’s cloudy,” said Sergio Hoyos, a business developer at Chevron Technology Ventures, at the city council meeting last week
where the plan was unveiled, according to Reuters.

As it stands, oil companies typically burn natural gas to produce the steam necessary to get the oil flowing, and that method will
still likely be the case at night and for most of the day. But this trial plant will enable Chevron to determine whether such solar
thermal projects might be appropriate for other oil fields.

Similar efforts are underway with other solar thermal companies: Ausra helps supply steam to a coal-fired power plant to boost
efficiency in Australia, and the Electric Power Research Institute is studying the technology for use in fossil-fuel burning power
plants.

Of course, BrightSource will also likely be busy building the 2.6 gigawatt’s worth of solar thermal power plants it has announced
contracts for in California alone. The company is a revived form of Luz, which built the world’s first operating solar thermal power
plants near Bakersfield, Calif., in the 1980s before becoming defunct.

 There’s no word on how much the oil-heating solar thermal facility will cost to build this time around, but perhaps this is why an
oil company would invest in a solar power resurrection. After all, with climate legislation looming, carbon dioxide emissions saved
are carbon dioxide emissions turned into cash.

You know it can be nanoscale pump it? You may not believe, but now the world’s smallest has been manufactured out,it is the nanoscale pump . The world’s smallest pump will be used for health care.

A team of engineers has created the world’s smallest pump. The minute device, similar in size to a human red blood cell, is powered by an electrode made from something that doesn’t usually conduct electricity — glass.

Applying an electrical current to nanodevices is inherently tricky. Using non-conductive materials makes it even more difficult because they require wires inserted into them, yet they tend to be too small to make the integration of all these moving parts possible.

To solve this problem, Alan Hunt from the University of Michigan in Ann Arbor and his colleagues used a laser to hollow out a bent pipe inside a piece of glass. This resulted in a tiny tunnel with a thin glass wall at one end.

Insulating materials such as glass, wood and plastic can conduct electricity at high voltages, but they usually suffer in the process. ”When lightning hits your house, the bolt will pass through your roof, but you end up with a lot of damage,” says Hunt.

But a few years ago, his team found that at the nanoscale, ordinary glass becomes conductive without breaking. “When you go down to the nanoscale, the world doesn’t behave as we’re used to,” says Hunt.

If Alice ate a mushroom in Wonderland and shrank to the size of a gnat, says Hunt, the thread in her dress would be about as thick as the conductive glass wall in the electrode.

Gas pump , also known as air compressors, is the main gas supply, it is the original motive (usually motor) of the mechanical energy into the gas pressure to the device, the air pressure generating device. Pump gas pump and in general different, it’s working medium gases, liquids or other media not.
Large side air-driven piston, a small area of high pressure gas output end to be. Output Pressure: 2690bar (269MPa), in which oxygen maximum 5000psi (34.5MPa). Series of two gas booster pump booster pump, low pressure can be increased to a high pressure gas, driving pressure =<7bar, gas input pressure range of 0.5-10bar, maximum to 90Mpa. Pump for the series and N series to the exactly the same way, the entire pump is used in all aluminum and stainless steel. Pump gas drive in the series required some type of gas lubrication, so seals and other internal parts to be lubricated, the series of pump-driven piston diameter of 160mm.. Series single-stage gas booster pump booster pump, gas pressure to achieve the desired input type requires a certain degree of pressure preload, increased pressure due to the pre-maximum pressure varies. Maximum boost to 80Mpa. The pump for the same way as B series, the difference is that the series B Series pumps manufactured on the basis of two-headed pump, the entire pump used in all aluminum and stainless steel.

The pump drive piston diameter of 160mm, drive pressure =<8bar. Both ends of the pump head are cooled with exhaust, factory two inlet and two exit lines can be connected to user requirements. H Series gas booster pump single air control valve to non-equilibrium distribution of the pump the gas back and forth movement, all aluminum and stainless steel. All seals are imported quality products, designed to drive the maximum pressure are 10bar, proposed in order to ensure the life of the pump-driven pressure <8bar. The pump drive piston diameter of 160mm, the role of a single pump, all pumps are single acting with exhaust cooling.

Centrifugal process pumps may perform a relatively straightforward task but they are often working in hostile and stressful operating conditions. As a result, they can often fail prematurely – resulting in lost productivity from unplanned downtime.

Improved pump reliability, reduced maintenance and lower energy consumption can all be achieved by ensuring that a process pump is operating at optimum speed and efficiency.

Common problems
One of the main problems that can occur in engineering components is cavitation, which is a significant cause of wear, notably where pressurised liquids are being handled. This makes pumps highly susceptible, especially if they are required to start quickly. It occurs when a liquid is subjected to rapid changes of pressure, causing the formation of cavities in the lower pressure regions of the liquid. When entering high pressure areas, these bubbles collapse on a metal surface continuously, causing cyclic stressing of the metal surface and resulting in surface fatigue of the metal.

Cavitation in pumps generally occurs in one of two forms: suction cavitation and discharge cavitation.

Suction cavitation occurs when the pump suction is under a low-pressure/high-vacuum condition where the liquid turns into a vapour at the eye of the pump impeller. This vapour is carried over to the discharge side of the pump, where it is compressed back into a liquid by the discharge pressure. This imploding action occurs violently and attacks the face of the impeller. An impeller that has been operating under a suction cavitation condition can lose either large chunks from its face or have small bits of material removed which will cause it to look spongelike. Both cases will cause premature failure of the pump, often due to bearing failure. Suction cavitation is often identified by a sound like gravel or marbles in the pump casing.

Discharge cavitation occurs when the pump discharge pressure is extremely high, normally when a pump is running at less than 10 per cent efficiency. The high discharge pressure causes the majority of the fluid to circulate inside the pump instead of being allowed to flow out. As the liquid flows around the impeller, it must pass through the small clearance between the impeller and the pump housing at extremely high velocity. This causes a vacuum to develop at the housing wall which turns the liquid into a vapour. A pump that has been operating under these conditions shows premature wear of the impeller vane tips and the pump housing. In addition, due to the high pressure conditions, premature failure of the pump’s mechanical seal and bearings can be expected. Under extreme conditions, this can break the impeller shaft.

Concrete pump, concrete pressure the use of continuous conveyor of the machine along the pipeline. By the pump and delivery tube. Structure divided by the piston, squeezetype, hydraulic diaphragm. Pump  installed in the vehicle’s chassis, and then equipment or inflection of the fabric retractable lever on the formation of pump.

A gigantic concrete pump is heading towards Japan, the largest in the world, increasing speculating that Japan will soon attempt to entomb the Fukushima reactors. “We either wait a few hundred thousand years for the radiation to cool, or we wait a few weeks to get organized and start filling those containments with concrete using boron sand,” says a physicist familiar with the reactors who is a former translator for TEPC.(Fukushima Dai-ichi plant operator and owner).  Boron is a widely found element in the earth’s crust and is used for everything from making glass to manufacturing wash day detergents and bleaches. It also has the property of being extremely good at stopping neutron type radiation, and is used as shielding in nuclear reactors.

If Japan is going to entomb the Fukushima reactors, they are calling on the same company that encased the Chernobyl reactor. In 1986, 11 specialized concrete boom pumps were sent by the German firm Putzmeister GmbH to Chernobyl that entombed the devastated reactor in concrete. already at work in Fukushima pumping water and delivering sufficient volume.But four more pumps by Putzmeister are on the way , two smaller ones from Germany, andtwo from the United States, one of which is the largest concrete pump in the world .

This mega pump was designed to the special requirements of an American company. If this is done, the pumps, which can be operated by remote control from as far away asthree kilometers, will be so radioactive that they will have to be abandoned. They’ll haveto haul the pumps off and bury them at a site.

However, other experts wonder if killing the Fukushima reactors by pumping them full of concrete is possible or viable. Recent articles in the prestigious magazine “Nature” considered one of the leading scientific magazines in the world, as well as comments by the American Nuclear Regulatory Committee cast doubt on a scenario of entombing the Fukushima reactors in concrete. Nature magazine quotes Jack DeVine, an independent nuclear consultant , who spent six years in the clean up following the Three Mile Island accident. “Following the partial meltdown of a reactor at Three Mile Island in 1979… the state of the reactor core was subject to ongoing debate that went on for months. But when a camera was eventually lowered into the core in 1982, the damage was far worse than anyone predicted.”DeVine, along with many other observers, believe that the Japanese would be very unwise to try to entomb Fukushima  in concrete as was done with Chernobyl. There is too much risk of another earthquake or even tsunami damaging this structure and creating problems exceptionally difficult to deal with.