Overview
The GB/T9073-1999 centrifugal cryogenic liquid pump is a centrifugal pump designed for use in air separation equipment and is suitable for pumping cryogenic (temperatures ≤-150℃ ) liquid (such as air, oxygen, nitrogen and the like). In terms of materials, GB/T9073-1999 centrifugal cryogenic liquid pump use materials that are resistant to liquid nitrogen or liquid oxygen corrosion.
General Description
The centrifugal cryogenic liquid pump is generally composed of a centrifugal pump body, a motor, a cover, a support, a sealing device (mechanical seal), and the like.
The pump body is made of ferrous alloy such as cast iron, cast steel, and austenitic stainless steel, and stainless steel alloy. Its inlet and outlet flanges are wide and flat type, with high strength and good sealing.
The motor is designed according to the drive requirements of the pump. All motors should meet the requirements of 50 Hz/380V AC power supply.
The cover is generally made of carbon steel, and the corrosion-resistant stainless steel plate is used to fill the gap between the pump body and the cover.
The seal is generally the mechanical seal, which is selected according to the medium and the working environment parameters.
The support part is generally provided with a lifting device, and a fixed support is also available. The lift height is generally between 0.5-3 meters.
Performance Characteristics
The performance characteristics of the GB/T9073-1999 centrifugal cryogenic liquid pump are low noise, high efficiency and long service life.
In terms of noise, GB/T9073-1999 centrifugal cryogenic liquid pump can reduce the noise to a relatively low level with the help of rational structure design and properly selected bearing.
In terms of efficiency, the pump can achieve a relatively high efficiency by a reasonable comprehensive design and a reliable hydraulic part.
In terms of service life, GB/T9073-1999 centrifugal cryogenic liquid pump can reach a long service life with the help of advanced process equipment, material selection and sound quality assurance system.
Application Scope
GB/T9073-1999 centrifugal cryogenic liquid pump is mainly used for cryogenic temperature (≤-150℃ ) liquid (such as air, oxygen, nitrogen, etc.) pressure boost, leakage, transfer and other purposes. For example, in air separation equipment, these pumps are used to pressurize and transfer gaseous mixtures of various components.
Conclusion
The GB/T9073-1999 centrifugal cryogenic liquid pump is mainly used for the pressurization, leakage and transfer of cryogenic liquid materials in air separation equipment. This pump has the advantages of low noise, high efficiency and long service life. It is widely used in chemical, metallurgy, food and other industries.
