vacuum pump

Screw vacuum pump is a pumping equipment that uses a pair of screws to perform synchronous high-speed reverse rotation in the pump housing to produce suction and exhaust effects. It is an updated product of oil-sealed vacuum pump, which can remove gases containing a large amount of water vapor and a small amount of dust. It is widely used in domestic pharmaceutical, chemical, semiconductor and other enterprises with high requirements for clean vacuum.

Roots vacuum pump (abbreviation: Roots pump) refers to a kind of variable capacity vacuum pump with two leaf-shaped rotors that rotate synchronously in opposite directions in the pump. There is a small gap between the rotors and the inner wall of the rotor and the pump housing without contact with each other.
Roots vacuum pumps have been tested for long-term operation in petroleum, chemical industry, plastics, pesticides, steam turbine rotor dynamic balancing, aerospace space simulation and other devices, so they should be vigorously promoted and applied in China.At the same time, it is also widely used in petroleum, chemical, metallurgical, textile and other industries.Vacuum pump accessories are used as vacuum pump silencers for noise control of vacuum pumps.

A liquid ring vacuum pump is a rough pumping pump that uses liquid as the working medium.Among them, the water-ring vacuum pump that uses water as the working medium is called a water ring vacuum pump, and others can also use oil, sulfuric acid and acetic acid as the working medium.Industrial Sheung Shui ring vacuum pumps are mostly used.

WLW-B.F.T is oil-free (corrosion-resistant) vertical reciprocating vacuum pump is our company and research units jointly developed, continuous improvement of mature products, is to replace the W-type horizontal reciprocating vacuum pump ideal products, compared with the W-type horizontal reciprocating vacuum pump has the following advantages:
1. Energy saving (33%), water saving (50%), and floor space saving (66%).
2. No oil lubrication, can obtain clean vacuum, and facilitate the clean recovery of exhaust gas.

1.Nickname

Reciprocating vacuum pumps (also known as piston vacuum pumps) are dry vacuum pumps.

2.principle

It relies on the reciprocating movement of the piston in the cylinder to inhale and discharge gas.

3.classification

There are two types of reciprocating vacuum pumps, horizontal and vertical.However, horizontal piston vacuum pumps are commonly used; piston vacuum pumps are divided into single-cylinder and double-cylinder.The structure of its exhaust valve has spool valve type and free valve type.

The valve-type oil-sealed mechanical pump (referred to as the spool valve pump), like the rotary vane pump, is also a variable-capacity gas transmission pump, but the spool valve vacuum pump is several times more durable than the 2X rotary vane vacuum pump.Its range and conditions of use are basically the same as that of rotary vane pumps.

The eccentrically mounted rotor in the pump is tangent to the fixed surface of the stator, and two (or more) rotary vane slide in the rotor groove (usually radial) and are in contact with the inner wall of the stator, dividing the pump chamber into several variable-volume rotary variable-volume vacuum pumps.Usually, the gap between the rotary vane and the pump chamber is sealed with oil, so rotary vane vacuum pumps are generally oil-sealed mechanical vacuum pumps.

A vacuum unit is a device composed of a vacuum pump, a vacuum gauge, a vacuum valve, a vacuum pipe and a control element, which can obtain different vacuum degrees.

Summarize
As a complete set of equipment, the closed circuit circulation system of water (liquid) ring vacuum pump combines the water (liquid) ring vacuum pump, gas-liquid separator, heat exchanger, frame, internal pipeline and other accessories organically, and takes the pumped solvent as the working liquid of the liquid ring vacuum pump to realize the purpose of vacuuming.