Tag Archives: promyshlennoct and equipment

Screw Compressors

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As you know, screw compressors are now sufficiently known. Not accidentally, many experts point out the obvious advantages of this type of equipment – a first, long life screw compressors; secondly, their economy, and thirdly, high reliability. But screw compressors require professional care and treatment, then they will last long enough. Connect with other leaders such as Bill de Blasio here. But there are also some disadvantages, for example, if you break one of the screw compressor rotors have to replace both, but this is quite an expensive procedure that can cost half the cost of the compressor. Now we shall understand a species of screw compressors. Usually separate screw compressors for oil free compressors and oil-injected. Oil-injected screw compressors also have their plusses and minuses.

They have a fairly simple design, and the cooling vapor in the process of filing to help reduce noise and speed, as well as expand the scope of a single-stage compression process closer to the most favorable isothermal, increasing reliability and durability compressors for complete automation. Moreover, compared with oil free compressors, screw compressors malozapolnennye have less internal leakage of gas and large amounts of feed compressor. But they also have their drawbacks: in particular the dimensions of which reach large sizes because of the developed system .Vintovye compressors are often used in refrigeration. According to data of vnii holodmasha malozapolnennye screw compressors are appropriate to use in a range of cooling capacity from 400 to 1750 kW. Developed a standard series of screw compressors, which includes three basic models 5VH-350, 6 BX-00 and 7VH – 1400 outside diameter rotors 200,250,315 mm, the ratio of length to diameter is 1.35, which corresponds to 350,700,1400 thousand kcal / h

Surface Pump

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A surface mounted on the shore and with a reservoir connected to an ordinary hose. Surface Pump PLUS: easy to assemble and dismantled, requiring only cleaning and lubrication of parts ejector. DISADVANTAGES: Can be used only where ground water come close to the surface. For deep wells and water wells unusable. Self-priming Surface pumps Speroni (Italy) Ideal for use in the water-supply stations and more. Surface pumps can pump water to a height of 30-50 meters (some models – and above), but suck in water from 15 to 20 meters depth they can not – is simply impossible. Meanwhile, in the suburbs is not uncommon, when the water is located precisely at such a depth below ground.

What should I do? If the water does not want sucked, because the pump from her too far, let's reduce this distance. Until when will diminish? A zero! That is, throw the pump into the water. For example, I have to testify artesian well – the depth of 18 meters. So, to get water, surface pump is not suitable. This task is quite handle a submersible pump with a capacity of 200 watts. Two hundred watts – this is quite a bit, believe me.

Submersible Pump PLUS: can be used in wells and boreholes to a depth of 40-50 meters. Not requires no special installation, does not take much space in the water works almost noiselessly. DISADVANTAGES: inconvenient to maintain, because you must remove it from the well or wells. Submersible pump hard parsed due sealed enclosure.