Water softening system salt deficiency diagnosis method

Abstract

The invention discloses a salt deficiency diagnosis method for a water softening system. When an automatic softening control valve of the water softening system starts and stops a softening regeneration process, a switching signal is output to an upper computer. A conductivity meter is arranged at the bottom of the concave section of a drain pipe of the softening system, and is used for monitoringdrainage and outputting a conductivity signal to the upper computer. When the upper computer receives a regeneration starting signal output by the automatic softening control valve, the upper computer starts to acquire and record conductivity signals output by the conductivity meter. The conductivity data is recorded every 10 seconds; and people can judge whether the softening regeneration process is lack of salt or not according to the condition that after softening regeneration is started, whether the cumulative number of the ultrahigh data of the conductivity signal is greater than or equal to 60 or not and whether the cumulative number of the normal data of the conductivity signal is greater than or equal to 30 or not within 10 minutes before the softening regeneration process is finished. Timely and effective salting reminding can help the user to reduce the use risk and unnecessary loss.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to solving the problem of timing and reminder of salt addition in a water softening system. Background technique [0002] At present, sodium-type (Na+) cationic resin is used as filter filler, and Ca2+ and Mg2+ in tap water are removed by the principle of ion exchange, thereby removing or reducing the hardness of tap water to reduce the generation of scale. This method has been widely used in the field of water treatment. . Since the cationic resin loses its processing capacity after adsorption saturation, it needs to be regenerated with saturated brine (reverse adsorption process), so that the sites on the resin particles are replaced by Na+ again, so that the resin filter material can be refolded and softened ability. This process of adsorption and regeneration (reverse adsorption) is essential for the device for removing water hardness by ion exchange (ie, w...

AI Technical Summary

Problems solved by technology

Solve the problem of salt deficiency diagnosis and reminder of water softening system through more reliable, simple and low-cost devices and processes, so as to overcome the problem of excessive water hardness caused by traditional water softening devices due to lack of salt reminder function, or unreliable and untimely; Especially for industrial water treatment systems, since the softening device has a key protective effect on water treatment devices such as membrane elements, electric desalination, and hot water boilers, timely and effective salt addition reminders can help users reduce usage risks and unnecessary losses

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