1The sampling port test of the water softening equipment was qualified, but the hardness of the water in the softened water tank exceeded the standard

　　The main reasons are as follows:

　　AThe resin softening regeneration cycle is set too high, or the measurement accuracy is caused by the malfunction of the softened water flowmeter, which leads to the cation exchange resin not being regenerated in time when it should be regenerated, resulting in hard water exceeding the standard being injected into the softened water tank.

　　BThe forward wash time is too short, causing part of the waste brine that should have been washed away during the forward wash to be carried into the softened water tank.

　　2The sampling port of the fully automatic water softening equipment has been tested many times, but all have failed.

　　The main reasons are as follows:

　　AAt the junction of the pipe and the fully automatic softening control valveOThe type of sealing ring did not form a seal

　　At this point, the following should be checked:

　　▲Whether the length of the pipe is sufficient and whether the outer diameter meets the requirements

　　▲Did you forget to install it?OtypeSealing ring

　　▲OtypeCheck if the sealing ring is damaged

　　▲Check if the pipe is damaged or cracked.

　　tubeOAn example of a broken ring

　　The water used for direct washing can reach0.02mmol/L ; The effluent from the operation is not up to standard0.07mmol/L . (Example

　　Analysis: During the forward wash, water is taken from the drain outlet. The flow rate is large, and there is a reason at the drain outletOtypeThe amount of hard water after the ring breaks is much less than that after resin treatment, and the effluent after mixing can reach0.02mmol/L. When in operation, close the outlet valve and take water from the sampling port. The sampling port will be affectedOtypeThe hard water after the ring broke was more than that during the forward wash, and the water quality was unqualified.

　　3The hardness of the softened water from the water softening equipment exceeds the standard.

　　The main reasons are as follows:

　　A"Water supply"TDSThe ratio of the value to the height of the ion exchange resin layer or the exchange capacity of the cation resin is too large.

　　Compared with the initial water test of the new ion exchange resin, the water softening equipment is used to treat the feed waterTDSThe value requirements are stricter when the height of the resin layer is1.5The total hardness of the meter is10mmol/LWater supplyTDSvalue≥900mg/LWhen doing so, ensure the hardness of the softened water≤0.03mmol/LIt will be rather difficult.

　　BThe ion exchange resin was poisoned and lost its exchange capacity.

　　In raw waterFe3+,Al3+High content can cause resin poisoning (at this time, the color of the ion exchange resin darkens to dark red), thereby leading to a reduction in the resin exchange capacity and a decrease in the cycle water production. The excessive hardness of softened water caused by this reason is a gradual process, not a sudden and obvious over-limit.

　　CPoor regeneration of the ion exchange resin led to a gradual reduction in the water production volume of the cycle, and the effluent quality was substandard in the later stage of the set water production cycle.

　　There is too little salt in the salt tank. When the water level in the salt tank is normal but the height of the salt is less than that of the water1/3At that time, the brine absorbed in the middle and later stages of the brine absorption process is very likely to be unsaturated, resulting in the brine concentration diluted by the jet injector being lower than the regeneration requirements, which affects the regeneration effect.

　　The total water volume in the salt tank is too low, and the ion exchange resin tank is filled with100LThe resin requires a low amount of water in the salt tank40LIf the value is much lower than this, it will cause insufficient regeneration.

　　The salt water intake is too slow. Within the normal time, sufficient salt water cannot be absorbed. The reasons are as follows - no salt intake or slow salt intake.

　　The regeneration flow rate is too fast or the regeneration method is incorrect, that is, the resin tank is not compatible with the jet injector.

　　DThere is a large amount of gas in the resin tank. This gas may come from the presence of gas in the feed water or the air check valve not closing tightly during the slow wash process.

　　ENo large grains of non-iodized salt were used.

　　FIncomplete backwashing causes the exchanger to be contaminated by suspended solids, resulting in caking and flow deviation.

　　GInternal hardness leakage of the fully automatic softened water control valve: When the internal hardness leakage of a general control valve occurs, it often leads to water flowing out simultaneously from the softened water port and the wastewater port.

　　HThe sudden deterioration of the raw water quality, that is, the hardness of the raw water increases compared to the designed hardness, resulting in a reduction in the periodic water production volume.

　　4The chloride ion content in softened water increases.

　　AIn a multi-stage parallel water outlet system, the exchanger that is being regenerated is leaking.

　　BIn a multi-stage parallel water outlet system, bypass valves should be staggered during regeneration. This will also lead to the hardness of the effluent exceeding the standard.

　　CIncomplete forward washing after regeneration or changes in water quality of the water source.

　　The above is the boiler softening water equipment solution provided by Beijing Yuanlai. If you encounter any problems during use, please consult Beijing Yuanlai Water Treatment Equipment Co., LTD., which focuses on the water treatment industry15In this year, you can trust us