A Smart-controlled Sodium Hypochlorite Generator

This utility model relates to a smart-controlled sodium hypochlorite generator, which includes a water softener, fresh water circuit, brine circuit, and electrolysis circuit. The water softener's inlet is connected to a water source, and the outlet of the water softener is connected to the fresh water circuit and brine circuit. The fresh water circuit is equipped with a fresh water control component for regulating fresh water, and the brine circuit includes a salt dissolution tank for holding the mixture of salt and water. The salt dissolution tank is equipped with a brine control component for regulating brine. Both the outlets of the fresh water circuit and brine circuit are connected to the electrolysis circuit, which includes a mixer and an electrolysis electrode section connected in sequence, with a detection and control component capable of detecting the state of the brine between them. The generator also includes an automatic control component connected to the fresh water control component, brine control component, and detection and control component.

The improved sodium hypochlorite generator helps to ensure stable brine concentration during electrolysis, reducing electrode scaling, stable operating voltage and current of the generator, effectively avoiding the risk of shutdown, and reducing operational power consumption.

Background Technology

Sodium hypochlorite generators are a type of disinfection and sterilization equipment used in water treatment plants. These devices use non-iodized saltwater as raw materials and produce sodium hypochlorite solution through electrolytic reactions. Sodium hypochlorite is a strong oxidizing and disinfecting agent, commonly used as a disinfectant in water plants. To ensure the freshness and high activity of the sodium hypochlorite, guaranteeing the disinfection effect, the sodium hypochlorite generator produces and adds the sodium hypochlorite for use simultaneously. Common sodium hypochlorite generators on the market have issues with manual salt preparation, leading to varying salt concentrations in each batch, which can cause unstable equipment operation voltage and current, shutdown risks, and unstable water quality entering the electrolytic electrode section, leading to increased operational power consumption.

Utility Model Content

One aspect of this disclosure addresses the technical problem of providing an improved smart-controlled sodium hypochlorite generator.

The technical solution to this problem is a smart-controlled sodium hypochlorite generator that includes a water softener, fresh water circuit, brine circuit, and electrolysis circuit. The water softener's inlet is connected to a water source, and the outlet of the water softener is connected to the fresh water circuit and brine circuit. The fresh water circuit is equipped with a fresh water control component for regulating fresh water, and the brine circuit includes a salt dissolution tank for holding the mixture of salt and water. The salt dissolution tank is equipped with a brine control component for regulating brine. Both the outlets of the fresh water circuit and brine circuit are connected to the electrolysis circuit, which includes a mixer and an electrolysis electrode section connected in sequence, with a detection and control component capable of detecting the state of the brine between them. The generator also includes an automatic control component connected to the fresh water control component, brine control component, and detection and control component.

In one embodiment, the fresh water control component includes a fresh water valve for controlling the switch, a flowmeter for detecting fresh water flow, and a regulating valve for adjusting fresh water flow. In another embodiment, the fresh water control component also includes a constant pressure valve for controlling the water pressure in the fresh water circuit. In yet another embodiment, the brine control component includes a saltwater valve for controlling the entry of fresh water and a salt pump for pumping out the saltwater. In some embodiments, the detection and control component includes a saltwater tester. In other embodiments, the detection and control component includes a conductivity meter configured in the electrolysis circuit to detect the conductivity of the water in the electrolysis circuit, with high conductivity indicating high brine concentration and low conductivity indicating low brine concentration, and the automatic control component makes adjustments or prompts the user based on the obtained information. In some embodiments, a check valve is configured at the outlet end of the mixer to prevent backflow of brine.

The beneficial effects of this disclosure include that the smart-controlled sodium hypochlorite generator first treats the incoming water with a water softener, which is then divided into two routes. One route goes to the fresh water circuit, and the other route flows to the brine circuit, where it mixes with salt in the salt dissolution tank to form saturated brine. The fresh water from the fresh water circuit and the saturated brine from the brine circuit are mixed in the mixer to form brine of a preset concentration (generally 3%). The stable brine concentration effectively reduces the risk of shutdowns due to unstable voltage and current, and the stable water quality reduces electrode scaling. During the process, the detection and control component continuously monitors the concentration of brine in the electrolysis circuit. When the brine concentration does not meet the preset requirements, it feeds back a signal to the automatic control component (generally a PLC, Programmable Logic Controller), which sends instructions to the fresh water control component and brine control component. For example, if the electrolysis requires a brine concentration of generally 3%, and the detected brine concentration is too high, it can increase the flow of fresh water. If the brine concentration is too low, it can increase the flow of brine. Specifically, the fresh water control component includes a fresh water valve for controlling the switch, a flowmeter for detecting fresh water flow, and a regulating valve for adjusting fresh water flow. The fresh water valve controls the water flow into the fresh water circuit, and the flowmeter detects the amount of water in the water circuit and adjusts the opening of the regulating valve according to preset requirements. Furthermore, the fresh water control component also includes a constant pressure valve that controls the water pressure in the fresh water circuit, generally at a pressure of 0.1-6bar, which is conducive to the smooth flow of water into the subsequent electrolysis circuit. In some implementations, the brine control component includes a saltwater valve for controlling the entry of fresh water and a salt pump for pumping out the saltwater. The saltwater valve controls the water entering the salt dissolution tank to dissolve the salt and form saturated concentration saltwater. If continuous electrolysis is used, the saltwater valve is always open; if intermittent electrolysis is used, the saltwater valve is opened intermittently. The salt pump controls the output of the saturated concentration saltwater. In some implementations, the detection and control component includes a saltwater tester. The saltwater tester detects the concentration of the saltwater, and the detected information is fed back to the automatic control component, which controls the water circuit to make adjustments according to preset requirements. If the saltwater concentration is too high, it increases the flow of fresh water; if the saltwater concentration is too low, it increases the flow of saltwater. In some implementations, the detection and control component includes a conductivity meter configured in the electrolysis circuit to detect the conductivity of the water in the electrolysis circuit. High conductivity indicates high brine concentration; low conductivity indicates low brine concentration. Based on the obtained information, the automatic control component makes adjustments or prompts the user. In some implementations, a check valve is configured at the outlet end of the mixer to prevent backflow of brine.

In summary, the improved sodium hypochlorite generator helps to ensure stable brine concentration during electrolysis, reduce electrode scaling, stable operating voltage and current of the generator, effectively avoid the risk of shutdown, and reduce operational power consumption.

The above description is only a preferred embodiment of the present utility model and does not limit the present utility model. For technicians in this field, any modifications, combinations, and variations made within the spirit and principle of the present utility model are within the scope of the claims of the present utility model.