Pipe network pressure-superposed purification treatment vector secondary water supply system

Abstract

The invention discloses a pipe network pressure-superposed purification treatment vector secondary water supply system. The pipe network pressure-superposed purification treatment vector secondary water supply system is mainly composed of a backflow prevention device, a water quality purification continuous treatment module, a flow stabilization tank, a non-negative-pressure controller, an ultraviolet light disinfection device, a centrifugal pump, a speed governing permanent magnet motor, a control cabinet, a PC monitoring cabinet and a water supply pipe. The non-negative-pressure controller is installed on the flow stabilization tank and is used for eliminating negative-pressure influences generated by the suction lift when the centrifugal pump works, and non-negative-pressure direct concatenation is achieved; and the centrifugal pump is driven by the speed governing permanent magnet motor. The pipe network pressure-superposed purification treatment vector secondary water supply system has the beneficial effects that the water quality purification continuous treatment module is arranged, so that the water quality purification treatment function is achieved; in addition, non-negative-pressure direct concatenation pipe network pressure-superposed water supply is adopted, so that the advantages of saving energy, water, land and investment, being free of pollution and the like are achieved; the speed governing permanent magnet motor drives the centrifugal pump to conduct variable frequency water supply so that the energy-saving effect of secondary water supply can be further improved; in addition, the system mating function is complete, and the intelligent control degree is high; and the pipe network pressure-superposed purification treatment vector secondary water supply system is safe and sanitary in water supply and good in reliability.

Description

technical field [0001] The invention relates to the technical field of secondary water supply, in particular to a secondary water supply system for pipe network superimposed purification treatment vectors. Background technique [0002] The secondary water supply is to transport the tap water to the water point for water supply through water storage adjustment, water pump pressurization and control, etc., to solve the problem that the tap water pipe network cannot meet the water supply requirements of the water point for water volume and water pressure. However, there are hidden dangers of water quality pollution in the secondary water supply, especially in the secondary water supply mode with pools and water tanks. At the same time, the pipe material, scaling, corrosion, burst pipes, and backflow of the tap water pipe network will also affect the water quality of tap water. , The long-distance and long-term pipeline transmission and distribution of tap water will also cause ...

AI Technical Summary

Problems solved by technology

[0002] The secondary water supply is to transport the tap water to the water point for water supply through water storage adjustment, water pump pressurization and control, etc., to solve the problem that the tap water pipe network cannot meet the water supply requirements of the water point for water volume and water pressure

However, there are hidden dangers of water quality pollution in the secondary water supply, especially in the secondary water supply mode with pools and water tanks. At the same time, the pipe material, scaling, corrosion, burst pipes, and backflow of the tap water pipe network will also affect the water quality of tap water. , the long-distance and long-term pipeline transmission and distribution of tap water will also cause water quality to deteriorate. Therefore, the safety and hygiene of drinking water for secondary water supply have received more and more attention and attention

[0003] In addition, with the advancement of "resource-saving and environment-friendly" society, the issue of energy saving in secondary water supply has also attracted much attention. However, in most of the time of actual water supply, the frequency conversion of the water pump is operated under the state that deviates from the rated load and the rated speed is relatively large. Under normal circumstances, ordinary induction motors (such as Y series, Y2 series , Y3 series three-phase asynchronous motor) to drive the water pump, there is a problem that the light-load variable-frequency water supply will seriously deviate from the high-efficiency area and not save energy, because when the motor works at a rated load lower than 60%, its efficiency will drop by more than 15%. The power factor drops by more than 30%, which is not conducive to energy saving, but also affects the service life

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