Application Scope:

The SK type water ring vacuum pump and compressor are designed for the suction or pressure delivery of gases and other non-corrosive, water-insoluble gases without solid particles, to form vacuum or pressure in sealed containers as required by the process. A small amount of liquid may be present in the gases being suctioned or compressed.

SK type water ring vacuum pumps and compressors are widely used in industries such as machinery, petrochemicals, pharmaceuticals, ceramics, sugar production, dyeing and printing, metallurgy, and electronics.

Due to the isothermal compression of gases in the SK-type water ring vacuum pump during operation, it is less prone to danger when conveying or suctioning flammable and explosive gases, making its application more extensive.

Working Principle:

The SK-type water ring vacuum pump, as shown in Figure (1), has the impeller 3 eccentrically mounted inside the pump body 2. As the impeller 3 rotates, water is subjected to centrifugal force, forming a rotating water ring 5 on the inner wall of the SK-type water ring vacuum pump. The upper inner surface of the water ring rotates tangentially along the arrow direction. During the first half of the rotation, the inner surface of the water ring gradually detaches from the hub, creating a sealed space between the impeller blades and the water ring. As the impeller rotates, this space expands, and the pressure of the gas within it decreases, allowing gas to be drawn into the space. During the second half of the rotation, the inner surface of the water ring gradually approaches the hub, and the space between the blades narrows. The pressure of the gas within this space increases, and when it exceeds the exhaust port pressure, the gas between the blades is expelled. Thus, with each full rotation of the impeller, the space between the blades draws and expels gas once. With many spaces continuously working, the SK-type water ring vacuum pump continuously draws or compresses gas.

The SK-type water ring vacuum pump generates heat during operation, which can cause the working water ring to overheat. Additionally, some water and gas are expelled together. Therefore, it is essential to continuously supply water to the pump during operation to cool and replenish the water consumed within the pump, ensuring the pump operates as required.

When the gas exhausted from the SK-type water ring vacuum pump is not reused, a gas-liquid separator is connected to the pump's exhaust end (a water tank can be homemade as an alternative). After the wastewater and the contained water are drained into the separator, the gas and water are separated, with the gas exiting through the exhaust pipe and the remaining water supplied back into the pump through a return pipe for continued use. As operating time extends, the working water temperature will continually rise. At this point, a certain amount of cold water (tap water) needs to be supplied from the separator's water supply to lower the working water temperature, ensuring the pump meets the required technical specifications and performance indicators.