Non negative pressure water supply equipment pipeline multi-stage pump boosting system

Description :

　　Non negative pressure water supply equipment pipeline multi-stage pump boosting system Characteristics of Water Supply System Products

　　1. The variable frequency water supply system can be divided into three types according to the auxiliary water supply method: non auxiliary water supply, small water pump auxiliary water supply, and small air pressure water tank auxiliary water supply

　　No auxiliary water supply: The same model of water pump serves as a backup for each other, and the efficiency of low flow water supply is relatively low;

　　Small water pump auxiliary water supply: There are two or more specifications of water pumps (main pump and auxiliary pump). The main pump operates under high flow conditions, and the auxiliary pump is activated under low flow conditions. Energy waste still exists when the flow rate approaches zero at night;

　　Small pneumatic water tank auxiliary water supply: Switch to pneumatic water supply mode under low flow conditions to avoid energy waste. Diaphragm pneumatic water tank can buffer water hammer pressure fluctuations.

　　2. The variable frequency water supply system can be divided into two types according to the structure of the steady flow tank: gas water separation and gas water contact

　　Gas water separation: using the separation of water and air, with no contact between air and water, good hygiene conditions, and buffering effect on water hammer pressure fluctuations;

　　Air water contact: When eliminating negative pressure, air enters the steady flow tank through a filter, and the air comes into contact with water. The hygiene conditions depend on the quality of the filter.

　　3. The variable frequency water supply system can be divided into two types according to the water supply pressure: constant pressure variable and variable pressure variable

　　Constant pressure variable: a water supply method in which the water supply quantity changes with the water consumption, but the water pressure remains at the set value. Simple control, but insufficient energy saving;

　　Variable pressure: The water supply quantity changes with the water consumption, and the water supply pressure is controlled according to the set water supply working curve or multi-point pressure control at the end of the water distribution network. Energy saving is sufficient, the control system is relatively complex, and the pressure in the pipeline network fluctuates

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