PVC Hydraulic Ram Pump in Thailand. Maewang Chiangmai . ตะบันน้ำ ที่บ้านห้วยทราย ต.แม่วิน อ.แม่วาง จ.เชียงใหม่ ขนาดท่อเข้า 1นิ้วครึ่ง ท่อออก 4หุน สร้างโดย นายชาติชาย ภาคีนุยะ www.biogaseasy.synthasite.com
Wednesday, November 30, 2011
Saturday, November 26, 2011
Pneumatic and Hydraulic Cylinders - Single and Double Action Solutions
Anybody who has ridden a bike with spring coil shock absorbers on hard undulating surfaces would know how different and efficient the damping is on a pneumatic and hydraulic shock. The present day shock is a very state of the art shock and vibration damping equipment that works on either compressed air power or fluids to dissipate the energy and the vibrations generated from tyre contact with road surface. The shock impulse is dissipated through the Pneumatic and hydraulic cylinders with a sliding piston setup inside. The cylinder is filled with a fluid or air, as the requirement might be. Shock absorbers find use not only in the motor and automobile suspensions but in aircraft landing gear, in drilling equipment, in earth moving equipment, in oil rigs and many other huge industrial machineries. The same principle behind shock absorbers is employed in rail transport which limits the yawing of bogies from side to side in a fast moving train.
Pneumatic and hydraulic damping systems contain pneumatic cylinders or hydraulic cylinders which employ a steel piston, a piston rod, a cylinder barrel setup to help deliver the damping effect. As compressed air or fluid moves into a pneumatic or hydraulic cylinders, it pushes the piston up or down through the length of the cylinder. The reflex action of the piston is either activated by either the compressed air or by a spring mechanism, which brings back the spring to its original position. These are also called Single Action Cylinders. Cylinders come in a variety of types and may either be pneumatic cylinders, electro pneumatic cylinder, hydraulic cylinders or electro hydraulic cylinders. Double Acting Cylinders (DAC) employ the force of air to move in two ways, in an extend stroke and a retract stroke. Double Acting Cylinders have two ports, one for outstroke and one for in-stroke.
As the industry requirements may vary, pneumatic and hydraulic cylinder come in a variety of bores and strokes configurations. These may vary between being smaller than an inch all the way up to several feet. The power of compressed air or air may range from a few pounds per square inch to hundreds of pounds creating enough power and force of a few thousands of pounds. The pistons rods are usually made of toughened alloy steel. Cylinder pipes are seamless drawn and are precisely honed to the smoothest finish to prevent corrosion and provide long life for piston-seals.
Valves present inside the pneumatic and cylinder help regulate the flow of compressed air or fluids and maintain the pressure inside the pressure inside the pneumatic or hydraulic cylinder. Some pneumatic cylinders reach 1000 mm in diameter, and are used in place of cylinders for special circumstances where leaking hydraulic oil could impose an extreme hazard. Pneumatic and hydraulic cylinders also find application in automated shutters in train and tram doors, and automated exits that are monitored and activated by sensors. The low friction nature of arrangement in Pneumatic and hydraulic cylinders enable a smooth, slow-speed operation and at a low pressure which is a safety consideration in human traffic areas.
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Monday, November 21, 2011
The Great Pyramid Water Ram Design: Part One
The Great Pyramid Water Ram Design: Part One. A man named Kunkel once spurred on the exploration of water lift and water ram design technologies within the Great Pyramid structure. With pursuits based in the 40's are we being lead in the proper direction or have we overlooked new discoveries and applications?
Wednesday, November 16, 2011
Elevators - Top 4 Most Used Types of Home Elevators
Some people are thinking that installing an elevator is luxury and some people, necessity. If you are one of those who think that means luxury, it's all right; I'm not saying that installing home elevators is a must. At least that you can do is to read this article and maybe you'll learn something new about the lifts. If you are one of those who think that means necessity I want to tell you some details about the most used types of elevators for home appliance.
The most used types of home elevators are: hydraulic elevators, electric (traction) elevator, pneumatic lift elevator and overhead winding drum. Hydraulic lifts are the most secure and the most used home elevators. These lifts are operated by hydraulic rams also known as a "hydro rams". They are pumps that cycle the water, supplied by hydro-power.
There are a few types of hydraulic elevators, known as "roped-hydraulic", "hole less", and "in ground". "In ground" systems must have a huge hole at the lowest level of the house and has to be drilled down, with depth same as the length of the lift trajectory. That's because the cylinder is moving down through the hole as the cab is moving up. Sometimes there are no possibilities to drill this hole. In that case are using "hole less" systems because on each side of the elevator they are using a pair of hydraulic jacks as a moving force. Roped-hydraulic system is alternative when it's not possible to drill hole for the cylinder and the cab travel is greater than the "hole less" systems can provide. They are combination of hydraulics and ropes connected to jacks, controlled by friction governor and governor-tension sheave.
Electric also known as traction elevators have two types of traction systems. The traction systems can be geared or gear less. The geared systems can be power supplied by alternative or direct current. Geared machines are using to control the moving of the cab. The cab is connected by big steel ropes and they are rolled by high-speed motor over drive sheave. The gear less system includes alternative or direct current high-speed gear less motor which is attached to the drive sheave directly without using steel ropes.
The third type is the pneumatic elevators. These lifts can carry only one or two people and their cab is moved by pneumatic system by creating air pressure difference between the top and the bottom of the cylinder tube. No cables, no pistons and no pulleys, just like the elevators in the "sci-fi" movies. The aluminum and glass are the only materials used in the process of manufacturing of these residential lifts.
The last of the four types is overhead winding drum elevator. As we can assume from their name these types of residential lifts, an overhead winding drum is used to manipulate with the elevation cab, so there's no need for machine room because the winding drum machine is placed at the top of the elevator hoist-way.
I hope that this information was quite helpful for you and as a potential buyer you've got some clarifications about the types and subtypes of home elevators. I'm sure that you'll make the right choice and you'll install the most suitable elevator, according to your requirements.
Friday, November 11, 2011
All About Hydraulic Ram Pumps
!±8± All About Hydraulic Ram Pumps
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The ram pump, or water ram, is a very useful 'old-tech' device that has been around for many years and is as useful today as ever. It can pump water from a flowing source of water to a point ABOVE that source with no power requirement other than the force of gravity. Invented before electric water pumps, this rugged, simple and reliable device works continuously with only 2 moving parts and very little maintenence. Typically installed at remote home sites for domestic water supply, watering livestock, gardens, decorative lily and fish ponds, water wheels and fountains. Because it uses no power, a ram pump can be used where water would normally not be used and would flow on downstream.
This book explains in simple terms and with illustrations how the ram pump works, where and how it can be set up, and how to keep it going. The second section of the book gives step-by-step plans for building a fully operational Atlas Ram Pump from readily available plumbing fittings and which require NO welding, drilling, tapping or special tools to fabricate. The final chapter shows how to build an inexpensive ferro-cement water storage tank.
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