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Chemical industry is common a few kinds of vavuum pump and its actor defect
From;    Author:Stand originally

1, a few kinds of vavuum pump that chemical industry often uses -- the cent with the common OK and simple vavuum pump on chemical industry accumulates type vavuum pump and jet vavuum pump for transfiguration, vavuum pump of transfiguration accumulating type is to use the periodic change of pump antrum cubage to finish inspiratory the device with exhaust, vavuum pump of vavuum pump of piston vacuum pump, blade, pilot valve vavuum pump, water annulus vavuum pump, collect Ci belongs to transfiguration to accumulate type vavuum pump namely. Jet vavuum pump is to use the pressure of the effect in Wen Qiu to fall a kind of kinetic vacuum pump that the high speed efflux of generation transports gas to exit, vavuum pump of water jet vavuum pump, vapour jet vavuum pump, jet of soda water series connection, soda water combines jet vavuum pump to belong to jet vavuum pump together.
2, the working principle of vavuum pump of transfiguration accumulating type and actor defect
(1) , vavuum pump of piston vacuum pump, blade, pilot valve vavuum pump, Luo Ci vavuum pump is rely on piston reciprocate or rotate gas inspiratory, compress and eduction. Their advantage is new investment vacuum spends use pump to be compared relatively tall, but the piston is locomotive component, because of this piston wearing away cannot avoid, as frequency of overhaul increase working vacuum to spend will drop ceaselessly, till cannot satisfy manufacturing requirement. Noise of job of this kind of pump is big, amount of bad news oil is large, fault rate is high also be its deadly defect, need to reserve commonly, this virtually increased installation cost and moving charge. If use water vapour of pump of this kind of pump to wait,can coagulate additionally sexual gas, will make lube emulsification, because this can apply in pump do not coagulate only quality (air kind) gas, also cannot the medium that pump contains grain condition, this also limitted its suitable scope.
(2) , water annulus vavuum pump is to rely on to install the contains much lamina prejudicial rotor inside pump case to rotate, throw water to pump case to form as homocentric as pump case water link, water annulus and rotor lamina formed cubage cycle to change thereby gas inspiratory, compress and eduction. Its advantage is the rate of air sucked in required when low vacuum water vapour of OK and big, direct pump can coagulate sexual gas. Its defect is vacuum is spent low; Cannot the medium that pump contains grain condition; Rotor high speed rotates to do anticorrosive processing not easily, accordingly cannot pump has caustic medium.
3, the working principle of jet vavuum pump and actor defect
Jet vavuum pump is to use the pressure of the effect in Wen Qiu to fall a kind of kinetic vacuum pump that the high speed efflux of generation transports gas to exit. It divides vavuum pump of jet of series connection of vavuum pump of the jet that it is water, vapour jet vavuum pump, soda water, soda water to combine jet vavuum pump. Jet vavuum pump spends limits wide membrane pump with its vacuum, water vapour of OK and direct pump can coagulate sexual gas and the medium oil pump that contain grain condition, the structure is simple, the operation is convenient, without locomotive component maintenance is measured small, energy-saving fall in each technology that the application with the wider and wider advantage such as bad news manipulates in chemical industry, the pump of working principle blowdown of all sorts of jet vavuum pump introduces respectively below.
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