Automatic softener
1.Overview
The fully automatic water softener is a new green, economical and safe soft water treatment system method developed based on national industry standards and combined with a large number of successful engineering practices. Adhering to the design principle of meeting end-user requirements, and incorporating raw water pretreatment and water quality monitoring and deployment systems, we select suitable equipment to construct a fully automated sodium ion exchange soft water system. It completely solves many problems caused by the high operating costs, frequent equipment failures, unqualified water quality, and mismatch between water quality and user needs that users have experienced when using a water softener alone in the past.
II. Operating Principle
The hydraulic control valve uses the kinetic energy of water flow to drive two sets of turbines, which in turn drive two sets of gears to rotate the water meter dial and control dial. The water meter panel accumulates the flow passing through it, while the control panel introduces the raw water pressure signal into a set of valve chambers through a set of channels. As it rotates, it opens or closes the pressure channels according to a set of rules, thus achieving automatic switching of a set of integrated valves. The QC-RST series water softener consists of two resin tanks (main tank and auxiliary tank), a hydraulic control valve, and a salt tank. The control valve controls the water circuit to switch between the main tank and the auxiliary tank, ensuring that one tank is always in working condition while the other tank is in regeneration or standby mode. The regeneration salt solution is inhaled by the negative pressure of the Venturi ejector installed inside the valve, and the regeneration and cleaning water is the softened water from the other tank. Different numbers of water meter dials are used for different hardness of raw water to achieve corresponding working and regeneration cycles. The hardness of water is mainly composed of cations: calcium (Ca2+) and magnesium (Mg2+) ions. When raw water containing hardness passes through the resin layer of the exchanger, calcium and magnesium ions in the water are adsorbed by the resin, while releasing sodium ions. The water flowing out of the exchanger is softened water with hardness ions removed. When the resin adsorbs calcium and magnesium ions to a certain saturation level, the hardness of the effluent increases. At this point, the softener will automatically regenerate the spent resin according to a predetermined program. A high concentration of sodium chloride solution (brine) is used to pass through the resin, allowing the spent resin to be restored to a sodium-type resin.
I. Equipment Features
1.High degree of automation Stable operating conditions.
2.Advanced program control device The operation is accurate and reliable Replace manual operation Fully realize the self-transformation of all aspects of water treatment.
3.High efficiency and low energy consumption The operation cost is economical. Due to the reasonable overall design of the softener so that the exchange of resin can be fully utilized The equipment uses jet-type salt absorption Replace the salt pump reducing energy consumption.
4.The equipment is compact in structure Small footprint Save infrastructure investment Installation Debugging It is easy to use The performance of the operating components is stable. The inlet water requirements are residual chlorine < 0.1ppm, turbidity < 2Fe < 03ppmMn < 0.3ppm, and total salt content <500 ppm.
Key points of construction and installation
1）The pipeline should be equipped with force-bearing supports to prevent the control valve from being stressed.
2）When the inlet pipe of the water softener is connected to the domestic water pipe, a backflow preventer should be installed on the inlet pipe.
3）If the inlet water pressure is lower than 0.15MPa, pressure boosting measures should be taken.
4）The length of the blow-off pipe should be less than 6m; no valve should be installed on the pipe; The outlet should not be higher than the valve body, and the terminal opening should be avoided to prevent siphonage.
5）In addition to using a water softener with a hydraulic drive multi-way valve, a 220V power supply is required on site.
6）Do not use iodized salt, but use calcium salt as a regenerant.
IV. Technical Features
1.New automatic control
The microcomputer processor controls the equipment to automatically perform the processes of water supply, backwash, salt absorption, regeneration, and forward wash, allowing for unmanned management.
2.Continuous and stable water supply
It can be automatically regenerated at a fixed time and flow rate to ensure the production of high-quality softened water.
3.Reasonable and compact structure
The integrated soft water exchange tank and control valve save installation space and further improve operational reliability.
4.Multi-functional saline system
It can automatically dissolve and absorb salt, and adjust the level of salt solution to ensure reliable automatic regeneration.
5.Uniform water distribution system
It can provide uniform water flow in the tank to ensure efficient use of resin and prevent resin loss
6.Excellent corrosion resistance
Avoid corrosion of equipment by regenerant and harsh environment
7.Low energy consumption
Self-use water consumption is less than 2% of the water production, salt consumption is less than 100 grams per mmol, power consumption is 10W to 40W, and power consumption is equivalent to 1% of that of a typical demineralized water equipment
8.Flexible design selection
Optional single tank, multi-tank system, time and flow control mode; One for use and one for standby, with alternating regeneration and other operation modes.
V. Equipment Advantages
1.High degree of automation
The fully automatic softener device automatically completes the softening and regeneration cycles according to the preset program. During operation, it requires no manual intervention except for the periodic addition of regeneration salt, which saves a lot of manpower and material resources. The automatic controller or computer-based automatic controller (optional) allows users to easily adjust the system's operation based on changes in water quality.
2.Stable effluent quality
The soft water device can accurately set the program according to the local water quality conditions, ensuring the quality of the water output under any working conditions.
3.High efficiency, low energy consumption, low operating costs
Due to the reasonable overall design of the water softener and strict automatic control, the exchange capacity of the resin is fully utilized, and the salt consumption, water consumption, and other indicators of the equipment are significantly lower than those of ordinary water softening devices, resulting in a significant reduction in power consumption.
4.Reliable operation and long service life
The exchanger shell of the DM soft water device is made of high-strength special glass fiber reinforced plastic and composite materials, which are resistant to corrosion and aging, with an effective life of up to 50 years. The fully automatic control valve has a unique structural design, with the valve core being the only moving part. These features make the control valve reliable in performance and long in service life.
5.Small footprint
The advanced process design makes the soft water device compact in structure, significantly reducing the footprint and saving construction investment.
6.Extensive use
It is suitable for water softening treatment in the electronic power industry, metallurgical industry, pharmaceutical industry, chemical industry, food and beverage industry, hotels and restaurants, thermal power stations, boiler rooms, office buildings, cold storage, shopping malls, air conditioning water, and household water; Used for water softening treatment of various boilers for heating, heating, gas supply, etc; Applied to drinking and bathing water, reducing the hardness of raw water; Used for water softening treatment of various heat exchangers such as plate and volumetric type; Used for chilled water treatment in air conditioning and refrigeration systems
VI. Technical Parameters
1.Treatment effect
Hardness of water: ≤0.03mmol/l.
2.Inlet water requirements
①Raw water hardness: in accordance with the Technical Conditions for Automatic Control of Sodium Ion Exchangers (GB/T18300-2001)
②Inlet water turbidity: <10mg/L
③Free chlorine at the inlet: ≤0.3mg/L
④Suspended matter at the inlet: <5mg/L
⑤.Iron content at the inlet: <0.3mg/L
⑥Inlet water pressure: 0.2-0.6 MPa
⑦Inlet water temperature: 5-45℃.
3.Operating parameters
①Resin type: 001×7 strong acid cation exchange resin
②Working power supply: 220V±22V/50HZ
③Regeneration mode and control: downstream dynamic regeneration type, time control, flow control, detection control
④ Interface type: thread or ABS flange
VII. Application Fields
It can be widely used for softening the make-up water in systems such as steam boilers, hot water boilers, heat exchangers, evaporative condensers, air conditioners, and direct-fired machines. It can also be used for the treatment of domestic water in hotels, restaurants, office buildings, apartments, and households, as well as for softened water treatment in industries such as food, beverage, brewing, laundry, printing and dyeing, chemical, and pharmaceutical.
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