The fire protection constant pressure water supply unit is considered one of the earliest introduced water supply and drainage equipment in China. As early as the 1970s, it was widely used in the HVAC market overseas. Its principle of operation combines the functions of a booster pump and a water supply pump. When it comes to water supply and drainage equipment, the development overseas has been relatively rapid. Several years ago, the Fillco constant pressure water supply technology was introduced from the United States. Today, it has continuously expanded and improved, developing more product categories, and quickly sparked a surge in the development of energy-saving and environmentally friendly equipment in China.
According to information, in the HVAC industry, the investment in plumbing and drainage equipment typically accounts for about 10% of the total system investment. Therefore, for our industry that produces waterway accessories, it is a matter of great importance to produce more energy-efficient and environmentally friendly products. The fire protection constant-pressure water supply device, due to its energy-saving and other advantages, is considered a major "candidate." Energy conservation and environmental protection will also be an eternal topic for industry development in the future.
What is a fire suppression pressure maintenance device?
Definition: A fire hydrant pressure maintenance water supply device is a combined multi-functional hydraulic regulating device selected based on the flow head of the water supply pump, also known as a hydraulic pressure maintenance unit.
Composition: It consists of a series of accessories including a pressure-regulating pump, a constant-pressure expansion tank, a pressure sensor, an electric control cabinet, and a weighing sensor.
Operating Principle:
1. Pressure Relief and Water Storage Regulation: As the medium is heated and its temperature rises, it expands in volume, causing the entire system's pressure to increase. When the pressure reaches the set pressure, the pressure relief solenoid valve in the equipment opens, releasing the expanded volume of the medium due to the temperature rise into the atmospheric tank, maintaining a constant system pressure.
2. Water Pressure and Refilling Regulation Function: After hot water passes through the heat dissipation equipment and loses heat, its temperature drops, volume shrinks, and the overall system pressure decreases. When the pressure drops to the set pressure, the water pump refills the system by pumping water stored in the atmospheric tank or other external supply sources through the refilling pump, maintaining system pressure and temperature.
3. Vacuum Deaeration: This process can remove dissolved gases, free gases, and large bubbles from the water in the system or extracted from the system under vacuum conditions, thereby protecting the equipment and ensuring stable operation of the system.
Category: Application Function Category - Divided into types such as Small Firefighting Constant Pressure Water Supply Units, Bag-Type Variable Frequency Constant Pressure Water Supply Units, Atmospheric Pressure Constant Pressure Water Supply Units, Constant Pressure Water Supply Vacuum Deaeration Units, and so on.
By application field: includes air conditioning constant pressure water supply devices, circulating water constant pressure water supply devices, boiler constant pressure water supply devices, fire protection constant pressure water supply devices, etc.
