G screw pump life is short? Jiangyin Elm Vacuum Equipment Co., Ltd. has something to say

There are many kinds of Vacuum pumps, such as Oil-less Vacuum Pump, Liquid Vacuum Pump, Two Stage Water Ring Vacuum Pump, today we are going to talk about G screw pump.

G-type screw pump according to turn to engage the positive displacement of the new type of pump work, screw pump originated in the early 1980s. Early in the oil field has been widely used, and achieved significant economic benefits. G screw pump running at a constant speed without mechanical and fluid inertia losses, both for general crude oil production wells, but also for high viscosity, high sand production wells. G-type selection or improper use of screw pump, screw pump not only to reduce the pump efficiency, but also affect the life of the screw pump.

The main working parts of the G-type screw pump are the eccentric screw (rotor) and the fixed bush (stator), both of which are vulnerable parts of the screw pump, of course, the mechanical seal is also an easily damaged part. Comprehensive market feedback from the customer data, Shanghai Kai too pump is responsible for the manufacturing process of the screw pump Zhao told the author, users in the purchase of G screw pump, screw pump must know some of the knowledge, grasp the G screw pump performance and features , It should be possible to eliminate the problem of short life of the screw pump.

How to extend the service life of G-type screw pump, the key to understand the following points.

First, the quality of the screw pump

Now on the market more types of screw pumps, relatively speaking, the imported screw pump design, excellent material, but the higher prices, some services are not in place, parts prices, ordering a long period of time, may affect the normal production run.

Most of the domestic production of imported products imitation, product quality varies greatly in the choice of domestically produced products, considering its cost-effective time, the choice of low speed, long lead, transmission parts of good quality, long life rating of the product.

Second, the selection of screw pump speed

Screw pump flow and speed into a linear relationship, relative to the low-speed screw pump, screw pump with high speed although it can increase the flow and lift, but the power was significantly increased, high speed accelerated wear between the rotor and stator, must make Early failure of the screw pump, screw rotor and high-speed fixed rotor length is very short, easy to wear, thus shortening the life of the screw pump.

Through reducer or stepless speed regulation mechanism to reduce the speed, the exploration speed maintained at a reasonable range of three hundred revolutions per minute, and high-speed operation of the screw pump, the service life can be extended several times.

Third, to ensure that debris does not enter the pump body

Solid impurities mixed in the wet sludge will damage the rubber material stator of the screw pump. Therefore, it is very important to ensure that the sundries do not enter the cavity of the pump. Many sewage plants add a shredder before the pump and some install Grille device or filter, block debris into the screw pump, grill should be promptly cleared to avoid clogging.

Fourth, to avoid broken material

Screw pump is never allowed to run in the case of broken material, once occurred, the rubber stator due to dry friction, instantaneous heat generated and burned, so the grinder intact grille is one of the necessary conditions for the normal operation of the screw pump is In this case, some screw pumps are still installed in the pump body off material shutdown device, when there is a broken material, due to its self-priming screw pump features, the cavity will have a vacuum, the vacuum device will make the screw pump stop running.

Fifth, to maintain a constant export pressure

Screw pump is a positive displacement rotary pump, when the outlet is blocked, the pressure will gradually increase, so that the pressure exceeds the predetermined value. At this time the motor load increased dramatically. Transmission machinery related parts load will exceed the design value, severe motor burn occurs, the transmission parts broken. In order to avoid damage to the screw pump, generally installed at the outlet of the screw pump bypass relief valve to stabilize the outlet pressure to maintain the normal operation of the pump.

Through the above explanation, we believe that how to buy g type screw pump and the use of matters to pay attention to, then the service life of g type screw pump can be greatly extended.