What are the components of a constant pressure water replenishment device

【 Capsule swelling and water replenishment device 】Product Overview
The constant pressure water replenishment device is a type of stabilizing water replenishment device, which mainly consists of a stabilizing tank, a water pump, a pressure switch, an intelligent control box, a safety valve, a base, and pipelines; The product is widely used for domestic and fire water supply in multi story or multi story buildings such as air conditioning, heating systems, residential areas, factories, commercial areas, hotels, hospitals, military facilities, etc. It can replace traditional expansion water tanks, reduce the number of times the main system circulation pump is started, adjust the water pressure and volume of the system, and is easy to achieve automatic water replenishment.

【 Capsule swelling and water replenishment device 】working principle
The constant pressure water replenishment device operates by utilizing the expandability of gas. After the installation of the constant pressure water replenishment device, the upper limit P2 (pump stop pressure), lower limit P1 (pump start pressure), and pressure values of the pressure switch can be set (specific setting values can be set according to customer needs). After the above work is completed, the power can be turned on to start water supply. Start the water pump and fill the building pipeline network and pressure stabilizing tank with water. As water is an incompressible liquid, the volume of the water chamber continues to expand as the water volume increases. The bladder shaped diaphragm continuously expands outward, squeezing the air chamber and causing its volume to continuously decrease. The pressure inside the tank also increases continuously. When the set pressure P2 is reached, the water pump automatically stops. Due to the decrease in the volume of water in the system, when the system pressure decreases, the gas in the tank expands and pushes the water pressure in the bag back into the system. In this way, the volume of the water chamber continues to shrink, and the bag shaped diaphragm continues to contract. When the water in the water chamber is almost used up, the pressure inside the tank also drops to the design pressure P1. At this time, the pressure switch touches the set lowest pressure contact, and the water pump automatically starts, allowing water to fill the pipe network and water chamber again. Repeat the above process to supply water to the water system. The above operation process is achieved by the pressure switch controlling the start and stop of the water pump through the electrical control box.
【 Capsule swelling and water replenishment device 】Product Point
1) One inflation can maintain long-term use, and users do not need to set up additional inflation equipment.
2) The tank is a closed device that prevents contact between gas and water, ensuring sufficient water quality without external pollution.
3) Small footprint, investment savings, fast installation, simple operation, and convenient maintenance.
4) Eliminating the need for water tanks for living and firefighting on the roof of buildings is beneficial for structural seismic resistance and building aesthetics; It can reduce water flow noise, cavitation, pipeline resistance, and water hammer effects, avoiding the phenomenon of inaccurate measurement due to water meter idling.
5) Flexible and adaptable, with unrestricted installation location, easy to renovate, expand, and relocate.
6) Automatic control, easy to use, and reliable operation.
7) The water supply pressure required for water points and fire hydrants is safe and reliable.
【 Capsule swelling and water replenishment device 】Technical Specifications

【 Capsule swelling and water replenishment device 】structural dimensions

【 Capsule swelling and water replenishment device 】Function and principle:

The constant pressure function of the constant pressure water replenishment device: it can adjust the volume expansion and contraction of the air conditioning water system caused by temperature changes, so that the pressure set point pressure of the air conditioning water system is constant;

Real time detection of system pressure through pressure sensors and output signals to the microprocessor center, opening the overflow solenoid valve to reduce pressure or opening the constant pressure pump to supplement pressure, thereby stabilizing the system pressure and ensuring the stable operation of the central air conditioning system;

The exhaust function of the constant pressure water replenishment device: During the exhaust process, the pressurized circulating water enters the atmospheric tank for pressure reduction, gas water separation, and the released gas is discharged into the atmosphere through the exhaust valve. This not only exhausts the gas in the system but also exhausts the gas in the replenishment water;

The water replenishment function of the constant pressure water replenishment device: The water lost due to gas discharge and system leakage can be monitored in real time by the control unit. Once it falls below the set value, the constant pressure pump will automatically pump water from the diaphragm tank for replenishment. The amount of water in the diaphragm tank can be monitored in real time through a weighing sensor, and the water volume is set during installation.

【 Capsule swelling and water replenishment device 】Function:

The constant pressure function of the constant pressure water replenishment device: When the medium is heated up, the temperature rise will cause the volume to expand throughout the system pressure body. When the pressure body reaches the set pressure (P0+0.2 bar), the pressure relief solenoid valve in the equipment opens, and the medium that expands due to temperature rise in the system is discharged into the atmospheric pressure tank to maintain a constant system pressure.

The water replenishment function of the constant pressure water replenishment device: When the hot water is cooled by the heat dissipation device, the temperature drops, the volume shrinks, and the system pressure drops. When the pressure drops to the set pressure (P0-0.2 bar), the water pump will supply the water stored in the atmospheric tank and other peripheral water sources to the system through the water replenishment pump, maintaining a constant system pressure.

The vacuum degassing function of the constant pressure water replenishment device: It can degas the water added to or removed from the system in a vacuum state, eliminating dissolved gas, free gas, large bubbles, etc. in the system, thereby protecting the safe and stable operation of the equipment and system.

The softening effect of the constant pressure water replenishment device: A softening water device (optional) is installed on the system's water replenishment pipeline to soften the external water quality of the system.

【 Capsule swelling and water replenishment device 】Equipment point:

1. Do not introduce inert gas into rubber cysts, as it has a wider applicability and saves labor and materials.

2. Through jet degassing, the second cycle degassing achieved the maximum degree of degassing.

3. The water storage tank is a normal pressure tank, with a thinner shell thickness compared to a pressure tank, which can save steel. At the same time, the normal pressure tank is a non pressure equipment, which is safer than pressure equipment.

4. The total volume of the water storage tank shell inside the rubber capsule of the atmospheric pressure water tank is equal. Under the same adjustment volume, the volume of the atmospheric pressure tank is only 1/3-1/2 of the volume of the expansion tank.

5. The main auxiliary tank adopts a capsule structure, which is very different from the traditional diaphragm expansion tank. The diaphragm expansion tube absorbs pressure fluctuations by the up and down movement of the membrane, and half of the tank body is in direct contact with the medium. This diaphragm expansion tank will corrode severely after a period of use, while the capsule expansion tank is a complete capsule that balances pressure fluctuations through the expansion and contraction of the capsule. The medium does not directly contact the carbon steel shell, so the expansion tank can be used for a long time without rusting.