Negative pressure-free water supply plant pressure monitoring device

Abstract

The invention provides a negative pressure-free water supply plant pressure monitoring device, which comprises a water inlet pipeline. The water inlet pipeline is connected with a current stabilizing tank connected with a water pump package; the water pump package is connected with a water outlet pipeline; a water inlet pressure monitor is arranged in front of a master valve of the water inlet pipeline; a pre-pump pressure monitor is arranged in front of a water inlet of the water pump package; a water outlet pressure monitor is arranged in front of a general water outlet of the water outlet pipeline; the water inlet pressure monitor, the pre-pump pressure monitor and a water outlet pressure monitor transmit monitored pressure values to an intelligent control cabinet in an electric signal mode; and the water pump package is connected with the intelligent control cabinet through electric signals. Through the negative pressure-free water supply plant pressure monitoring device, the water-lacking negative pressure generated because the pipe network capacity is smaller than the water flow is avoided, the potential safety hazards such as air sacs, air resistance, pressure oscillation, backflow, water hammers and the like due to transient flow negative pressure are controlled, the water supply safety and comfortability are ensured, and good energy-saving effect is achieved.

Description

technical field [0001] The invention relates to a pressure monitoring device, in particular to a pressure monitoring device for non-negative pressure water supply equipment. Background technique [0002] At present, the water supply equipment in the prior art, especially the non-negative pressure water supply equipment, is not equipped with a perfect pressure monitoring system, which will have a certain impact on the water supply quality. When the capacity of the pipe network is less than the water flow rate, "water shortage negative pressure" will be generated, resulting in excessive water intake; during the operation of the water pump, "transient flow negative pressure" will also be generated due to the instantaneous change of water flow, causing air pockets in the water flow , air resistance, pressure oscillation, backflow and water hammer and other safety hazards. Contents of the invention [0003] In order to solve the safety hazards such as excessive water intake, a...

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Problems solved by technology

[0002] At present, the existing water supply equipment, especially the non-negative pressure water supply equipment, is not equipped with a complete pressure monitoring system, which will have a certain impact on the quality of water supply

When the capacity of the pipe network is less than the water flow rate, "water shortage negative pressure" will be generated, resulting in excessive water intake; during the operation of the water pump, "transient flow negative pressure" will also be generated due to the instantaneous change of water flow, causing air pockets in the water flow , air resistance, pressure oscillation, backflow and water hammer and other safety hazards

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