【 Weak current College 】 screw pump selection of categories---Power By 【 China power house network 】

<br> is a positive displacement screw pump rotor pump, which is a screw pump and pump sets of teeth sealed chamber formed by the displacement of a number of suction and discharge liquid. .Screw inside the sealed chamber between two adjacent channel leakage is not as strictly theoretical sealed screw, whereas a non-strict sealed screw. .<BR> <BR> Noted in the practical application of current and relevant information, the application of a wide range of screw pump, which is characterized by a smooth flow, pressure pulsation, a self-absorption capacity, low noise, high efficiency, long life, .small size, reliable. .Outstanding advantage is the transmission medium does not form a vortex, can deliver a wide range of viscosity of various media, both can transport a variety of viscosity of lubricating or corrosive media, can also transport all kinds of non-Newtonian fluid viscosity, but also .can be fluid with gas, solid-liquid mixed transportation. .It is widely used in offshore platform construction, petrochemicals, shipping, electrical, mechanical hydraulic systems, food, paper, sugar, military, and sewage treatment and other industrial sectors. .Al Wheeler German sales manager as saying: "Nowhere in the world media, is the screw which can not be delivered." <BR> <BR> Said screw pump can transport any media. .Does not mean that a particular screw pump can transport all of the media, but by the media, the number of features and performance parameters required can choose different types of screw. .Usually divided by the number of screw screw screw pump, two, three and five screw pumps, each with advantages, promote the use of screw must be given the choice, only the full use of its own characteristics, in order to better .implementation of energy, materials, increase efficiency or to meet some special requirements. .<BR> <BR> Sets of single screw pump is a non-metallic elastic material (usually rubber) system to do, in the hole-like spiral groove, spiral metal it with a number of the sealed chamber formed between the screw .. .Metal screw for eccentric rotation, the sealed chamber from the pump to move the location of low pressure high pressure zone to complete the inhalation, the pressure discharge of liquid and the formation of the whole process. .In addition to general media, the single screw pump can transport the suspension and the metal particles, including fibers and other special media. .In dealing with sewage, mud, the commonly used single screw, usually working pressure is not high. .<BR> <BR> Traditional twin-screw pump is a non-strict sealed pump, made by metal material comprising a two phase pump cut the cylindrical cavity, each cavity of the two screw meshing, meshing .screw sets and screw in the pump profile is formed between a number of seal cavity. .Screw rotates, the sealing area of low pressure from the pump chamber shifted to high-pressure zone. .A single-head screw, there are double helical screw pump, the lubricating medium, if the helix angle is large enough, the main vice screw screw can be driven directly. .If coupled with synchronized gears, in theory, be no contact between the two screw. .Although not strictly traditional twin-screw pump seal, work pressure is not high, but very wide viscosity range transport of various media, you can transport all kinds of non-Newtonian fluid viscosity can also be fluid with gas, solid-liquid mixed transportation .. .Therefore, the industry is great interest in its place, especially in petroleum, chemical industry. .<BR> <BR> Is strict in theory, three screw-type sealing screw. .In textbooks, usually as a typical screw to be introduced. .Three screw pump is a metal pump comprising the main screw driven screw drive consisting of two. .Each has two helical screw, pump sets and screw in the number of the sealed chamber formed between the screw rotates, the sealing area of low pressure from the pump chamber shifted to high-pressure zone. .Three screw pump maximum operating pressure up to 30MPa, transmission medium is clean, non-corrosive lubricant, for special occasions can deliver high-viscosity, non-corrosive media (such as: ink, glue, etc.). .1:3:5 ratio of the structure of the three screw size constraints and other reasons, three screw transmission medium viscosity range is limited, generally limited to lubricating medium. .<BR> <BR> Five screw-type sealing screw usually non-strict. .A main vice screw driving four screws, each screw has two spirals. .As the pump chamber section of a larger unit over-current, and thus a large amount of media delivery. .Five screw 0.8MPa working pressure is usually less often restricted in installation size special occasions (such as: ship, ships, etc.) for the fuel pump. .<BR> <BR>.