What is hydro-pneumatic system and how does it work?

What is a pneumatic system?

A pneumatic system is a compressed air-based power transfer system. A system of tanks, pipelines, and valves usually connects a centrally positioned compressor to cylinders, rotary actuators, and other pneumatic equipment.

What is a hydro-pneumatic system?

Pressurized air and water are combined in a hydropneumatic tank. The air will make direct contact with water due to the absence of a bladder in the system. This type of system has main three functions. They are

  • Delivers water within a preset pressure range, reducing the need for the well pump to work continually.
  • Prevents a pump from starting up every time the distribution system receives a little request for water.
  • Minimizes pressure surges (water hammer).

Water pressure is a key issue in the residential, agricultural, and industrial sectors. Hydropneumatic pumps are used to enhance pressure in homes, high-rise buildings, and for a variety of other applications. These pumps are extremely energy efficient since they maintain a constant pressure level. The basic purpose of a hydropneumatic pump is to transfer insufficient supply pressure to a higher consistent valve, resulting in a continuous water flow. The hydro pneumatic pumps are made up of a pressure vessel made with cutting-edge technology and a single or multiple pumps to provide consistent water pressure.

The hydro-pneumatic system is intended to distribute water at a consistent pressure to all outlets on all floors of high-rise residences and commercial buildings. This system is suited for high-rise residences and structures where the water demand is variable and the fittings require pressured water to work.

Hydropneumatic systems are mainly divided into three types. They are

  • Tank Feeding System
  • Tap Feeding System
  • Curing System

Tank Feeding Systems:- This system is commonly utilized to feed multiple overhead tanks from a single central tank.

Tap Feeding Systems:- These are used to supply pressurized water to all of the taps from a central tank.

Curing Systems:- These are used to cure materials throughout the construction process. A significant amount of water is conserved as a result of this.

How does the hydro-pneumatic system work?

A pressure pump and a pressure tank are combined to make the hydropneumatic system. A rubber bladder enclosed by compressed air makes up the pressure tank. Most pneumatic systems require a continuous supply of compressed air, which is provided by air compressors. The compressor draws air from the atmosphere and stores it in a receiver, which is a high-pressure tank. After the air has been compressed, it will be sent to the system by a series of pipelines and valves, which will be controlled by a piston.

Pressurized air is employed since water is a non-compressible fluid. Water from this pressure tank is used when you open a tap or a shower knob. The pressure in the tank decreases when the water is used up. When the pressure switch detects a drop in pressure, the pump is activated. The pump turns off after the preset pressure is reached. This is done to limit the number of times the pumps are switched on and off. The pump’s life is extended as a result.

This system is self-contained and does not necessitate the use of human resources.

Application of hydro-pneumatic systems in industries

Pneumatic systems are primarily made up of pneumatic actuators that react to changes in air pressure. Pneumatic cylinders and valves are used to control and regulate air, which is the acting force. Air pressure is used to perform a variety of mechanical tasks.

Because compressed air is less expensive to purchase and maintain than electricity, manufacturing facilities choose to use compressed air to power factory automation. As a result, pneumatic systems are increasingly common in these industries since they are more cost-effective for executing mechanical operations. When opposed to electric actuators, pneumatic systems have a lot of advantages in terms of simplicity and reliability.

The pneumatics power transfer method is frequently the most efficient means to move parts and tools within industrial machines. From clamping and grasping to positioning and stacking, pneumatic systems can handle a wide range of duties in automated equipment. Additionally, pneumatic systems can be used for adaptive purposes such as pushing or tensioning, and each one can feature closed-loop control for added precision.

Pneumatic systems are employed in a wide range of fabrication and assembly applications. They can be used to transport products on production lines as well as in maintenance facilities. Due to the repeating motion that pneumatics provide, they can also be employed with heavy gear such as drills.

Components of hydro-pneumatic system

Applications of hydro-pneumatic system

  • In a housing project, clear water pressure is increased in high-rise apartments, high-rise commercial buildings, and row houses.
  • In hostels and hospitals, there is a pressured water supply.
  • Golf courses, sports fields, and huge farms all benefit from sprinkler irrigation.

Advantages and Disadvantages of hydro-pneumatic system

Advantages of hydro-pneumatic system

  • High effectiveness
  • High reliability and durability
  • Can be used in harsh environments
  • Easy selection of pressure and speed
  • Environmentally friendly

Disadvantages of hydro-pneumatic system

  • Less accuracy
  • Can tow low load
  • Produce high noise
  • Need to process before using