Compact secondary water supply on-site sodium hypochlorite preparation device and control method thereof

Abstract

The invention discloses a compact device for preparing sodium hypochlorite on a secondary water supply site and a control method thereof. An outlet of a softened water unit is connected with a salt dissolving unit and a first inlet of a saline water proportioning device; an outlet of the salt dissolving unit is connected with a second inlet of the saline water proportioning device; an electrolysisunit and a sodium hypochlorite storage unit are sequentially connected to the downstream of an outlet of the saline water proportioning device, an upper outlet of the sodium hypochlorite storage unitis connected with an inlet of a fan, a lower outlet of the sodium hypochlorite storage unit is output to a chlorination output port through a chlorination pump, and a hydrogen discharge port is formed in the top end of the sodium hypochlorite storage unit; the electrolysis unit is connected with the switching power supply; the whole device is provided with a control system. The device has the advantages of being highly integrated, modular, small in occupied area, flexible to move and suitable for a pump station with a small area; the device allows unattended automatic operation for a long time, and automatic feeding and residual chlorine control are achieved through interlocking with a residual chlorine analyzer, wherein the control method is simple and reliable; therefore, the device canbe widely applied to disinfection of secondary water supply pump stations and rural water supply pump stations.

Description

technical field [0001] The invention relates to a compact secondary water supply on-site sodium hypochlorite preparation device and a control method thereof, which are mainly used for secondary water supply disinfection of tap water. Background technique [0002] With the development of urban construction, there are more and more high-rise buildings, and the living quarters are becoming more and more dense. The pressure of the basic urban water supply network is limited and can no longer meet the demand. The secondary pressurized water supply mode came into being. At this stage, the quality of secondary water supply facilities is uneven, the design is unreasonable, the construction is not standardized, and there is no regular maintenance and cleaning during use, etc., which may cause water pollution and cause great safety hazards to residents' domestic water. Therefore, the secondary water supply pump station needs to be equipped with disinfection and chlorine supplementatio...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a compact secondary water supply on-site sodium hypochlorite device to solve the problems of the prior art that occupy a large space, inconvenient maintenance, certain potential safety hazards and high cost

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