What is the reason why the asphalt insulation pump does not discharge oil or the oil discharge amount is small?

Asphalt insulation pump and Roots insulation pump are both commonly used pumps. Although they are all insulation pumps, there are still some differences. Different pumps are used to transport different media in different environments. Next, let's introduce the difference between asphalt insulation pump and Roots insulation pump.

When the asphalt thermal insulation gear pump works, the medium enters the liquid suction cavity, the medium is pressed into the liquid discharge cavity and flows out through the rotation of the gear. The output flow can be changed by adjusting the handwheel. When the handwheel rotates to the right, the safety valve is pushed open, and the pump loses its output pressure and stops discharging. When the handwheel rotates to the left, the safety valve will resume its function and the medium will be output normally.

Roots pump is an ideal pump specially produced according to customer's demand, which is suitable for conveying high viscosity media. This product has the characteristics of strong working ability, large flow rate, simple structure, strong self-priming ability and strong pump wear resistance. The pump has strong sealing performance,

With long service life, it is an ideal conveying equipment for petrochemical, grease, impurity, food, asphalt, light industry and other industries.

Asphalt thermal insulation gear pump and thermal insulation Roots pump are used in similar working occasions, but under the same conditions, the performance of Roots pump is much superior to that of thermal insulation asphalt pump, mainly in the following four points:

First of all, Roots pump adopts double bearing positioning and synchronous gear transmission to make the pump more stable. Thermal insulation asphalt pump is not driven by synchronous gear.

Secondly, the viscosity of the medium transported by Roots pump is much higher than that transported by gear-type thermal insulation asphalt pump.

Thirdly, the rotor gear of Roots pump adopts large-modulus three-blade or four-blade gear, while the thermal insulation asphalt pump adopts ordinary involute helical gear or spur gear, which has low noise and low conveying viscosity.

Fourthly, Roots pump adopts reducer drive or belt drive, which has low rotating speed, slow gear wear and long service life. However, thermal insulation asphalt pump mostly adopts motor straight chain mode, which has high pump speed and fast gear wear.