Full-time pressure-superposed non-negative-pressure water supply device

Abstract

The invention discloses a full-time pressure-superposed non-negative-pressure water supply device including a current stabilizing compensator. The current stabilizing compensator includes a tank body. A water outlet, a liquid level sensor, a pressure sensor and a water inlet are arranged in the side wall of the tank body. A top cover is arranged at the upper end of the tank body. An air port is arranged in the top cover. The air port is connected with an air pump. An air conveying pipe is connected with an electromagnetic air exhaust valve through a tee joint and an exhaust pipeline. The water inlet is connected with a municipal pipe. The water outlet is connected with a secondary pressure pump unit. An output pipeline of the secondary pressure pump unit is provided with an output pressure meter. An output pressure meter, a water pressure sensor and a water level sensor send collected data to a controller. Working states of the secondary pressure pump unit, the air pump and the electromagnetic air exhaust valve are controlled by the controller. Constant pressure in the tank body can be ensured all the time during the working process of the current stabilizing compensator, so that the secondary pressurizing is performed based on prior pressure of the municipal pipeline; the pressure-superposing effect of the current stabilizing compensator is improved substantially and the energy saving performance of the non-negative-pressure water supply device is improved.

Description

technical field [0001] The invention relates to the field of non-negative pressure water supply equipment, in particular to non-negative pressure water supply equipment that can be stacked all the time. Background technique [0002] Non-negative pressure water supply equipment is a pressurized water supply pump set directly connected to the municipal water supply pipe network, and the water supply is superimposed in series on the basis of the residual pressure of the municipal pipe network to ensure that the pressure of the municipal pipe network is not less than the set protection pressure. Water supply equipment, so it is also called pipe network superimposed water supply equipment. The core of the non-negative pressure water supply equipment is how to prevent the generation of negative pressure during the operation of the secondary pressurized water supply system, eliminate the impact of the operation of the pump unit on the municipal pipe network, and achieve safety, rel...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure of non-negative pressure water supply equipment is that when the water compensation output or water level in the steady flow compensator is not full, the vacuum suppressor connects it to the atmosphere, and the water pressure in the steady flow compensator is atmospheric pressure, The secondary pressurization cannot be superimposed on the basis of the water pressure of the municipal pipe network, resulting in a certain amount of energy waste, and its energy-saving effect still needs to be improved

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