Turbofan dry vacuum pump

Abstract

The invention relates to the field of vacuum pumps, in particular to a turbofan dry vacuum pump. The turbofan dry vacuum pump comprises a main frame, a driving motor, a driving shaft and a primary uptake ventilator. The driving motor, the driving shaft and the primary uptake ventilator are arranged on the main frame. The driving motor is connected with the driving shaft. The driving shaft is coaxial with the primary uptake ventilator. A first turbofan is arranged inside the primary uptake ventilator and fixedly connected with the driving shaft coaxially. A first air inlet is formed in the end, away from the driving shaft, of the primary uptake ventilator. The rotating direction of the first turbofan is opposite to the rotating direction of the driving shaft. A first turbine is arranged inside the primary uptake ventilator and arranged on the side, away from the first air inlet, of the first turbofan. A first air outlet is formed in the side wall of the primary uptake ventilator. The turbofan dry vacuum pump is high in pumping speed, small in power, low in cost and capable of being independently used, has the functions of dust removal, humidity removal and refrigeration to a certain extent, facilitates condensation, and is capable of condensing and recycling toxic and hazardous gas, durable and easy to maintain.

Description

Technical field [0001] The invention relates to the field of vacuum pumps, in particular to a turbofan dry vacuum pump. Background technique [0002] Oil-free dry mechanical vacuum pump (also referred to as dry mechanical pump) means that the pump can start pumping from atmospheric pressure, and can directly discharge the pumped gas to the atmosphere. There is no oil or other working medium in the pump cavity, and A mechanical vacuum pump whose ultimate pressure is equal to or close to that of an oil-sealed vacuum pump. [0003] As of 2013, most mechanical vacuum pumps used in the vacuum industry use fluids such as oil, water or other polymers as the working medium of the pump, which plays a role in cooling, sealing, and lubricating the pump. With the development of science and technology and the expansion of vacuum application fields, the original mechanical vacuum pump and its exhaust system have two urgent problems that need to be solved: First, the pump’s working medium contam...

AI Technical Summary

Problems solved by technology

With the development of science and technology and the expansion of vacuum application fields, there are two urgent problems to be solved in the original mechanical vacuum pump and the pumping system composed of it: one is that the working medium of the pump backflows and pollutes the pumped container, and this backflow Flow affects the quality, quantity of products in many cases and increases the maintenance cost of equipment

[0006] The advantages of dry vacuum pumps have been recognized by users, but the cost is high, the power demand is large, the service life of domestic pumps is limited, the pumps with high pumping speed are difficult to work reliably and continuously, the production cost is high, and it is not easy to popularize

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