exhaust pipe of a water ring vacuum pump
The exhaust pipe of a water ring vacuum pump is generally made of stainless steel, such as 304 stainless steel or 316 stainless steel. This is because during the operation of the vacuum pump, the discharged gas may have a certain humidity and even contain trace corrosive substances, such as acidic water vapor or alkaline particles. Stainless steel has excellent corrosion resistance, which can effectively resist the erosion of these substances, prolong the service life of the pipe, and avoid gas leakage caused by pipe corrosion and perforation, thus ensuring the stable operation of the vacuum pump system.
Some are also made of carbon steel with anti-corrosion coating. Carbon steel has a relatively low cost, and its corrosion resistance can be enhanced by coating epoxy resin, polyurethane and other anti-corrosion coatings, which can meet the use requirements under general working conditions. However, in highly corrosive environments, stainless steel is still the better choice.
The exhaust pipe is an indispensable part of the water ring vacuum pump system, and its main function is to transport the gas extracted by the vacuum pump to the water circulation tank. When the vacuum pump is running, the impeller rotates in the pump body to form a water ring, which sucks in and compresses the gas, and then discharges it through the exhaust pipe. A stable and unobstructed exhaust pipe can ensure the pressure balance inside the vacuum pump, maintain the normal working state of the vacuum pump, and thus ensure the vacuum degree of the entire vacuum system.
In addition, the exhaust pipe can also separate a small amount of water and impurities carried in the gas to a certain extent. By setting a reasonable pipe slope and installing gas-liquid separation devices (such as cyclone separators, etc.), the water and impurities in the gas can be deposited at the bottom of the pipe or separated under the action of gravity, reducing the impact on subsequent equipment.
