Characteristics of air-cooled Roots liquid ring vacuum system

Characteristics of air-cooled Roots liquid ring vacuum systemProduct Introduction

Based on over a decade of experience in this field, we have adopted a four stage unit consisting of a liquid ring, an air-cooled Roots vacuum pump, a Roots vacuum pump with a bypass valve, and a Roots vacuum pump with a bypass valve as a better solution to this working condition. Of course, some units may also recommend air-cooled Roots vacuum pumps for front-end pumps, which are definitely not a problem in use. However, when using air-cooled Roots pumps as front-end pumps, due to its pressure difference of several hundred millibars, high noise and vibration, the noise is more than 20 decibels higher than that of liquid ring pumps. Moreover, the pumping efficiency decreases significantly between atmospheric and 400mbar, while liquid ring pumps have a constant pumping speed between atmospheric and 400mbar. Therefore, we recommend liquid ring pumps as front-end pumps.

It is composed of one or several Roots vacuum pumps connected in series with a liquid ring vacuum pump. The specific structure is shown in the following figure. The JZJS unit uses a liquid ring vacuum pump as the front stage pump and can operate for a long time in the pressure range of atmospheric to several thousand pascals. It is particularly suitable for suctioning gases with high humidity, containing a lot of water vapor, and gases with certain corrosiveness and condensability. Therefore, the Roots liquid ring vacuum unit can be suitable for: vacuum distillation, vacuum evaporation, dehydration crystallization of chemical products; The processes of polyester chip drying in the textile industry, drying of leather products, freeze-drying in the food industry, and vacuum impregnation and drying of the three major components in the power industry.

Characteristics of air-cooled Roots liquid ring vacuum systemMain Features

1. The air-cooled Roots pump can be used alone, in series with multiple stages, or in series with a liquid ring pump.

When a single air-cooled Roots pump is directly discharged into the atmosphere, the high vacuum degree can reach 150mbar.

3. The series connection of multi-stage air-cooled Roots pumps or liquid ring vacuum pumps can achieve a medium vacuum range of 10-2pa.

4. The special structural design ensures that the air-cooled Roots pump will not overheat or overload under high pressure difference and high compression ratio.

5. Good dynamic balance testing and high-precision machining ensure smooth and quiet operation of the product.

6. Balanced mechanical seals enhance the sealing performance of air-cooled Roots pumps.

7. The pump chamber is an oil-free structure, suitable for extracting general air and various special gases.

Compared with other mechanical vacuum pumps, it is energy-saving.

This utility model provides an air-cooled Roots vacuum pump combination, belonging to the field of pump technology. It solves the technical problems of high noise and short service life in the existing air-cooled Roots vacuum pump combination. This air-cooled Roots vacuum pump combination includes a pump body with an inlet, an exhaust port, and a return cooling air port. A heat exchanger is connected to the exhaust port of the pump body, and the return cooling air port of the pump body is connected to the heat exchanger through a return cooling pipeline. A filter is also installed in the return cooling pipeline. This utility model has the advantages of low noise, long service life, and wider application range.