Posted on Mar 20, 2021
In the water resource industry, a pressure booster pump is a machine which is used to increase the pressure of a targeted fluid substance. This type of pumps may be deployed with liquids or gases, but the construction details will vary case by case based on the fluid types and the corresponding substance characteristics. For one, a gas booster is similar to a gas compressor, however, generally a simpler mechanism which often has only a single stage of compression, and that is utilized to increase pressure of a gas already above ambient pressure level. On the other side, two-stage boosters are also made for use. Regarding the power sources, boosters may be driven by an electric motor unit, hydraulics, low or high pressure air, or may even be manually operated by a lever system.
Today, those powered by compressed air are usually linear actuated systems, in which a pneumatic cylinder directly drives the compression piston, often in a common housing, which is separated by a seal unit. Moreover, a high pressure pneumatic drive arrangement may use the same pressure as the output pressure to drive the piston, and a low pressure drive will use a larger diameter piston for multiplying the applied force. For its usages, they are mostly applied for water heater pressurization, high-rise low water pressure, sauna, bathing and other pressurization, insufficient pressure at the top of the apartment, solar automatic pressure increase, reverse osmosis water purifier pressure increase, and many other commercial usages.
Generally speaking, the booster pump is filled with liquid first, and then the centrifugal pump is started then. Later, the impeller rotates rapidly, and the impeller's blades drive the liquid to rotate for sure. After that, when the liquid rotates, it flows to the outer edge of the impeller by inertia as normal physical effects. In the impeller side, the liquid flows around the blades, and the liquid acts on the blades in the flow. In turn, the blades act onto the liquid with a force equal to this lifting force, and then in the opposite direction. This force does work on the liquid and makes the liquid obtain whenever the energy flows out of the impeller. The kinetic energy and pressure energy of the liquid increase in the process and is normal results. The working principle of gas-liquid booster pump is similar to that of a pressure booster. It applies a very low pressure to a large-diameter air-driven piston first. When this pressure acts on a small area piston, a high pressure is generated then. Through a two-position five-way air-controlled reversing valve, the booster pump can achieve continuous operation as anticipated.
The high-pressure plunger controlled by the check valve continuously discharges the liquid, and the pressure at the outlet of the booster pump is related to the air driving pressure. When the pressure between the driving part and the output liquid part reaches equilibrium state, the booster pump will stop running and no longer consume the air. When the output pressure drops or the air-driven pressure increases, the booster pump will automatically start running until it stops automatically after reaching pressure equilibrium again. A single gas-controlled unbalanced gas distribution valve is used to realize the automatic reciprocating motion of the pump, and the gas drive part of the pump body is made of aluminum alloy.