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The working principle of non-negative pressure water supply equipment

Released Date: Mar 11,2016 Article Source: Yuanlai Water Treatment
The working principle diagram of the non-negative pressure water supply equipment: The constant-flow tank-type non-negative pressure water supply equipment is directly connected to the municipal water supply network and supplies water by series superimposed pressure on the basis of the remaining pressure of the municipal water supply network. (1) Variable frequency constant pressure water supply: When the water supply volume of the municipal water network is greater than the water consumption of users, the constant flow tank type non-negative pressure water supply equipment provides variable frequency constant pressure water supply. At this time, a certain amount of pressurized water is stored in the constant flow tank. (2) Negative pressure: When the water consumption of users increases, causing the pressure at the connection between the municipal pipeline network and the steady flow tank to drop, and when the pressure drops below the relative pressure 0, a negative pressure is formed in the steady flow tank, and the intake valve of the vacuum suppressor opens, allowing the atmosphere to enter the steady flow tank. At this point, the steady flow tank is equivalent to an open water tank with a free liquid surface, and the pressure is the same as that of the atmosphere, with a negative pressure. When the water level drops to the set value, the liquid level controller transmits the control signal to

  The working principle diagram of the non-negative pressure water supply equipment: The constant-flow tank-type non-negative pressure water supply equipment is directly connected to the municipal water supply network and supplies water by series superimposed pressure on the basis of the remaining pressure of the municipal water supply network.

  (1Variable frequency constant pressure water supply: When the water supply volume of the municipal water network is greater than the water consumption of users, the constant flow tank type non-negative pressure water supply equipment provides variable frequency constant pressure water supply. At this time, a certain amount of pressurized water is stored in the constant flow tank.

  (2Negative pressure: When the water consumption of users increases, causing the pressure at the connection between the municipal pipeline network and the steady flow tank to drop, and the pressure drops to the relative pressure0When the pressure drops below, a negative pressure is formed in the steady flow tank, the intake valve of the vacuum suppressor opens, and the atmosphere enters the steady flow tank. At this point, the steady flow tank is equivalent to an open water tank with a free liquid surface, and the pressure is the same as that of the atmosphere, with a negative pressure. When the water level drops to the set value, the liquid level controller transmits the control signal to the control system in the frequency conversion control cabinet, controlling the pressurizing unit to stop working and the user to stop water supply. When the water consumption of the user decreases, the water level in the steady flow tank rises, and the gas is discharged from the exhaust valve of the vacuum suppressor. After the pressure returns to normal, the pressurizing unit automatically starts again and resumes water supply.

  (3Water cut-off and shutdown function: When the municipal water supply network is cut off, the pressurizing unit will automatically stop running under the control of the liquid level controller. After the municipal water supply network resumes water supply, it will automatically start up and resume normal water supply.

  (4Low-flow sleep function: When the user does not use water or the water consumption is very small, the equipment automatically enters a sleep state (shuts down) and maintains the water supply pressure. When the user resumes water use, the system automatically wakes up and resumes normal water supply.

  (5When there is a power outage in the community, the municipal water supply network will continue to supply water to users in the lower areas, ensuring that water supply does not stop even during the power outage. After the power supply to the equipment is restored, it will automatically start up and resume normal water supply.


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