The transmission process operation has become the latest scientific and technological achievements in the modern high-tech fields such as the nuclear fuel enrichment industry. It also has guiding significance for the operation of the gas material pressurization and transmission process for claw-type oil-free vacuum pumps in chemical and other industries. This article briefly describes the design basis, technical requirements for the drive system, the selection of the drive mechanism, and the working principle of the claw-type oil-free supercharged transmission vacuum pump. The system has also achieved good results in practical applications. The claw-type oil-free vacuum pump is one of the main types of dry vacuum pumps. It was originally produced by certain German and British manufacturers. The domestic research, design, and production were conducted by Beijing Longsun Technology Co., Ltd. In order to expand the application of claw-type oil-free vacuum pumps in the chemical industry and other fields, especially in the nuclear industry, experts and scholars of Beijing Lanxun Technology Co., Ltd. and Lanzhou Uranium Uranium Enrichment Plant jointly studied the design and manufacture of uranium for nuclear fuel. The pressure-transmitting vacuum pump produced by the concentrating process has passed several research tests. At present, the pressure-transmitting vacuum pump has achieved a relatively ideal design index, satisfies the requirements for the use of nuclear fuel uranium enrichment production technology, and breaks through the technical monopoly of foreign products in this field. Blockade, and has a good promotion before the development of the most we are very willing to share this achievement with peers, will be a brief introduction of the design points of the pressure transmission vacuum pump, welcome experts from all walks of life to discuss the technical design of 1 claw oil-free supercharged transmission vacuum pump Key points 1.1 Technical requirements for the supercharged transfer pump The pressurized transfer of uranium hexafluoride gas, which is radioactive and corrosive, does not allow any leakage; the inlet pressure range of the pump: Bu 4 kPa (absolute pressure); 1.2 Supercharged transfer pump The design basis 105) In the pressure range of Pa, there is a high compression ratio. The compression ratio of the stage is between 25 and 25; there is a certain gap between the pair of claw pump rotors and the pump chamber. When the vacuum pump is running, there is no friction between the rotor and the inner wall of the pump chamber, which is suitable for continuous operation for a long time; the conventional claw pump has been batch-produced Experience in successful production and uninterrupted operation in a variety of harsh environments such as chemical environments. 1.3 Turbocharging Transmission Pumps Using Magnetic Couplings as Drive Couplings Magnetic Couplings are mature technology and have many advantages over other couplings. In particular, the leakage rate of the pump can be achieved by the user in terms of sealing. 1.4 The structure of the supercharging transmission pump The vertical structure of the pump: the two spindles are perpendicular to the horizontal plane; the structure is more complicated and the cost is higher; the horizontal structure: the two spindles are parallel. At the water level; the structure is relatively simple and the cost is relatively low.
Through the comprehensive comparison of the working principle of the relatively simple horizontal structure 1.5 booster transmission pump used in the styling product (see) The purpose of completing the pumping or gas transport by the volume effect produced by the simultaneous movement of the claw rotor in the opposite direction is K
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