The main features of the cryogenic pump and the sealing form (magnetic pump, high temperature magnetic pump, stainless steel magnetic pump, pipe pump, vertical pipe pump, horizontal pipe pump, pneumatic diaphragm pump, electric diaphragm pump) today's most effective order information free to send! Morning latest buyers information free to send! Punch grab Rob here! (1) The bag-type cryogenic pump is often buried in the ground and is not affected by the hot air, air temperature and learning photos of the electric motor. It is easy to keep cold and can reduce the installation height of the pump, increase the filling pressure head and increase the effective NPSH. ② The overall structure of the pump strives for a symmetrical arrangement so that it can be uniformly deformed in a cold state. ③ In order to facilitate the cold, is conducive to the transport of hazardous medium, the pump body is double shell, the inner shell to withstand pumping pressure, between the inner and outer shell to withstand the suction pressure of the medium, which may be appropriate to reduce the strength requirements of the inner shell. (3) Pump seal ①seal configuration 1 (single-end mechanical seal). Configuration l (single-ended mechanical seal) Simple structure, less auxiliary equipment. In the past, the sealing surfaces often freeze and flash during use, thus affecting their use. Many seal manufacturers are now considering this phenomenon in the design, when the liquefied gas temperature is below -80 ℃, the use of methanol or nitrogen sealed liquefied gas method to solve the sealing surface icing problem. ② seal configuration 2 (no pressure double mechanical seal). In many cases, especially over long distance pipelines, it is desirable to be able to detect seal damage and consequential leakage from the beginning. In this case, seal configuration 2 can be used, as shown in Figure 2-129. Its inside seal functions as a single-ended, in-line seal that fills only the liquid from the reservoir by the sealed chamber without pressurization. Therefore, the lubrication of the inside seal is provided by the process medium, rather than by the fluid tank. Once the inner seal fails, causing the pressure inside the sealed chamber to rise, it can be displayed on the pressure gauge on the reservoir by recording or alarming for timely access. The outer seal can take up the shaft seal and contain the role of leakage of liquid.
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