First, the common rotary vane vacuum pump 1. 2X two-stage rotary vane vacuum pump 2X two-stage rotary vane vacuum pump is used to remove the gas in a specific sealed container, so that the container can obtain a certain degree of vacuum. Due to the rapid development of modern science and technology, the application of vacuum pump covers various scientific fields and various enterprises and institutions. It can be used for scientific research, production and teaching by metallurgical, chemical, light industry, petroleum, medical, pharmaceutical, printing and dyeing, electrical appliances, electric vacuum, semiconductor, food, atomic energy, textile and other scientific research institutions, colleges and universities, industrial and mining enterprises. Instructions for use Roll Forming Line,Floor Deck Roll Forming Machine,Decking Roll Forming Line,Decking Roll Forming Machine Xinxiang Tianfeng Machinery Manufacture Co., Ltd. , http://www.tfrollforming.com
Rotary vane vacuum pump performance evaluation basis
Rotary vane vacuum pump performance evaluation basis
Since the vacuum pump is made of ferrous metal and is relatively precise, the entire pump is associated with oil, so it is not suitable for the removal of oxygenated, toxic, explosive etched ferrous metals. It is also not used as a compressor and transfer pump for various gases that chemically act on vacuum oil. If there is a pump with a gas ballast device, a certain amount of condensable vapor can be removed.
The vacuum pump can be used to directly obtain vacuum work with a vacuum of 10-3 Torr or less, and with other vacuum equipment to obtain a vacuum of 10.3 Torr or more. The vacuum pump is generally used in an environment of not lower than 5 ° C and a relative temperature of not higher than 90%.
Model meaning
For example: 2X-15 2- represents two-stage X- represents a rotary vane vacuum pump 15-extraction rate is 15 per second
2. Direct-connected two-stage rotary vane vacuum pump product overview
The 2XZ rotary vane vacuum pump is one of the basic equipment for removing gas from a sealed container. It can be used alone or as a fore pump for booster pumps, diffusion pumps, molecular pumps, etc., to maintain pumps, pre-pumps for titanium pumps. Can be used in electric vacuum device manufacturing, thermos manufacturing, vacuum welding, printing, plastic, refrigeration equipment repair and instrumentation. Because it has the advantages of small size, light weight and low sound, it is more suitable for use in the laboratory.
In the range of ambient temperature 540, the inlet pressure is less than 1.3 × 103 Pa, allowing long-term continuous operation. When the relative humidity of the pumped gas is greater than 90%, the valve should be opened.
The air inlet shall be continuously and smoothly operated for no more than one minute.
It is not suitable for removing gases that are corrosive to metals, chemically reacting to pump oil, containing particulate dust, and oxygen-containing, explosive, toxic gases.
working principle
The 2XZ rotary vane vacuum pump is a two-stage high-speed direct-coupled rotary vane vacuum pump (hereinafter referred to as the pump). It has a rotor that is eccentrically mounted in the pump chamber and a rotary vane in the rotor slot. When the rotor drives the rotary vane to rotate, the rotary vane is in close contact with the wall of the chamber, separating the inlet and outlet ports, and the volume of the intake manifold is periodically expanded to inhale, and the volume of the exhaust chamber is periodically reduced. Compress the gas and push the exhaust valve exhaust to obtain a vacuum. Figure 1 is a schematic diagram of the working principle of a single-stage pump. The two stages are two single stages connected in series.
The 2XZ pump is equipped with a gas ballast valve, which has the function of prolonging the pump oil usage time and preventing the pump oil from mixing.
2XZ pump has small size, light weight and noise