Power Indicator does not light up
1、 The Residual Current Circuit Breaker is not opened.
Open the Residual Current Circuit Breaker, make the equipment in Power condition.
2、 Indicator Lights have damaged.
Should be replace the power indicator light.
Electronic heating Tube indicator does not light up
1、 Examine the Wire Connecting Terminal & Electronic Heating Tube Connection whether is right.
According to correct method connect and ensure connection is tight.
2、 Electronic heating tube have damaged.
Close the total power (Residual Current Circuit Breaker), check one by one.
3、 Indicator Lights have damaged.
Should be replace the power indicator light.
The distilled water output capacity decrease
1、 The Evaporation Pot quantity of steam is small
Heating Tube wall scale formation, regular cleaning the scale and discharge.
2、 The Heating Tube have damaged.
Close the main power switch (Residual Current Circuit Breaker), check one by one, if have damaged one, please replace the heating tube according to correct method.
3、 Evaporation pot water shortage
Adjust big Water Outlet Adjustable Valve and check whether the water source is without water
4、 Condenser scale formation
Open the discharge scale cover and discharge the water scale.
5、Cooling water inlet, water outlet flow imbalance
Should be adjust big water inflow, adjust small water outflow, make the water flow balance.
Distilled water unqualified
1、 The Evaporation Pot internal water level is too high and into the Condenser.
Adjust small water outlet valve, adjust big discharge valve, make the Evaporation Pot water level in normal, at least in the sight glass bottom line.
2、 Distilled water containing chlorine, because the water quality is high salt content problem, caused the condenser pipe is corroded(salt crystals corrosion)
a、Improve water quality to become qualified drinking water or add softened water device at water source place.
b、Check the condenser pipe whether it have cracks due to corrosion, and timely welding condensing pipes.
1. Working principle: The sterilization principle is to irradiate bacteria, viruses and other microorganisms with ultraviolet light to destroy the structure of DNA (deoxyribonucleic acid) in their bodies, causing them to die immediately or lose their ability to reproduce. Only short-wave ultraviolet light (200-300nm) can kill bacteria, among which the strongest sterilization power is in the range of 250-270nm. The cost and performance of ultraviolet lamps made of different materials are also different. The ultraviolet light radiated by ultraviolet germicidal lamps, mainly with a wavelength of 253.7nm, can destroy the DNA in viruses and cells, causing the death of the entire virus and cells, thereby achieving the purpose of disinfection and sterilization.
2. Parameters of UV lamp
(1) Power: 240W
(2) Dimensions: Ø19*1554
(3) Power supply: 220V
3. Calculation of effective UV dose
(1) Calculation of effective UV dose ED=ND×CLH×CJG Where: ED------Equipment UV effective dose ND------Average UV dose of equipment in the state of new UV lamp, mj/cm2; CLH-------UV aging coefficient; CJG-----UV tube scaling coefficient; 15mj/cm2=ED*0.5*0.8 ED=37.5mj/cm2
(2) Calculation of UV dose Dose= I•dt Where: Dose----Dose, mj/cm2; I----------UV intensity received by microorganisms at a certain point on their motion trajectory, mW/cm2; T---------Exposure time or residence time of microorganisms in UV sterilizer, s. I=9.7mW/cm2 (measured at 5cm) 37.5mj/cm2=9.7mW/cm2*T T=3.947s
(3) Water volume disinfected by a single UV lamp Q=A*m*H/t m: lamp length (meters); t: water exposure time (seconds); Q (cubic/hour) A cross-sectional area (square meters) Q =3.14*0.065*0.065*3600/3.947 = 12.1m3/h
① The best conditions for using ultraviolet sterilizers are: water temperature: 5℃-50℃ The water quality of drinking water entering the treatment equipment has a transmittance of 95%-100% at 1cm. If the water quality to be treated is lower than the national standard, such as the chromaticity is higher than 15 degrees, the turbidity is higher than 5 degrees, and the iron content is higher than 0.3 mg/L, other purification and filtration methods should be used first to purify it to the standard before using ultraviolet sterilization equipment.
② Check regularly to ensure the normal operation of the ultraviolet lamp. The ultraviolet lamp should be turned on continuously. Repeated switching will seriously affect the service life of the lamp tube.
③ Regular cleaning: According to the water quality, the ultraviolet lamp tube and quartz glass sleeve need to be cleaned regularly. Wipe the lamp tube with alcohol cotton balls or gauze to remove dirt on the quartz glass sleeve and wipe it clean to avoid affecting the transmittance of ultraviolet rays and affecting the sterilization effect. ④ Prevent ultraviolet radiation: Ultraviolet rays have a strong killing power on bacteria and also have certain harm to the human body. When starting the disinfection lamp, avoid direct exposure to the human body. If necessary, use protective glasses. Do not look directly at the light source with your eyes to avoid burning the eye membrane.
⑤ Replacement of lamp tubes: Imported lamp tubes should be replaced after 9000 hours of continuous use or one year to ensure a high sterilization rate. When replacing the lamp tube, first unplug the lamp power socket, pull out the lamp tube, and then carefully insert the clean new lamp tube into the sterilizer, install the sealing ring, check for water leakage, and then plug in the power supply. Be careful not to touch the quartz glass of the new lamp tube with your fingers, otherwise the stain will affect the sterilization effect.
Flow meter no indication or unstable
1. Pump inner has air
Open pump exhaust air plug, remove the air and turn back the plug, check whether the pump suction line is leaking
2. The Condenser `s non-condensable gases discharge valve is not open.
Open the non-condensable gases discharge valve
3. Pump failure
Repair or replacement pump
4. Filter clogging
Open the filter, check if clogging and clean or replace.
Distilled water quality unqualified
1. Caused by improper operation internal seeper, steam entrainment droplet
Check whether the steam pressure is lower, whether the water inflow is higher, reduce water inflow and operate for period of time, discharge seeper then return to normal.
2. The end effect bottom floating ball liquid level control valve malfunction
Open the end effect evaporator bottom flange, check whether the floating ball adjustable valve drain outlet is blocked, whether the float valve movement is sensitive.
Distilled water yield lower
1. Heating steam pressure low
Improve heating steam pressure
2. Water inflow is insufficient
Increase the water inflow.
3. The first effect evaporator heating steam non-condensable gas is not discharged.
Open the non-condensable gas discharge valve, discharge the non-condensable gases.
4. Heating steam condensate water discharge is not unimpeded, causing heater internal seeper.
Check steam trap surface temperature, if lower then open it cleaning.
Distilled water temperature lower
1. Feeding water quantity too big
Adjust small feeding water quantity
Distilled water temperature higher
1. Feeding water quantity too small
Increase feeding water quantity
2. Discharge the Non-condensable gas is not unimpeded
Check whether the condensable gas discharge valve is opened, and clean or replace.
1. Shell material: The stainless steel reaction chamber adopts imported thickened wall 304 stainless steel or 316L material, and the raw materials are from domestic stainless steel pipe factories, and the material is guaranteed
2. Processing technology: It is made by fully automatic welding, and all the teeth are welded smoothly without dead angles after punching, drawing and stretching. The high-brightness cavity with internal and external polishing greatly enhances the intensity of UV radiation, and the sterilization body design is enhanced. The pressure can reach 0.8Mpa. The strict air pressure and water pressure test before leaving the factory will not leak at all.
3. UV lamp: It adopts low-pressure high-intensity mercury lamp imported from Europe and the United States, with a service life of up to 9000-13000 hours. The matching electronic ballast further enhances the life of the whole set of sterilizers and the sterilization rate is as high as 99.99%.
4. Electronic ballast: adopts ABS plastic shell integrated design, equipped with a special single-ended four-pin lamp tube fast interface, wide voltage design, preheating start, abnormal protection and anti-electromagnetic interference, so it has fixed holes
5. Quartz sleeve: imported high-purity quartz raw materials, single-end open structure, good sealing
6. Sealing ring: food-grade transparent silicone, trapezoidal structure made of special mold, replaces O-ring, and will not cause leakage caused by improper installation
7. Ultraviolet sterilizer product specifications: complete, flow rate from 0.1T/H-500T/H, to meet the needs of different water consumption. The stainless steel shell of the sterilizer is guaranteed for ten years, and other accessories are guaranteed for one year, except for one year or human factors and force majeure)
8. System design: adopts the US NSF55 "Ultraviolet Microbial Water Treatment Equipment" standard and the drinking water ultraviolet sterilizer industry standard CJ/T204-2000.
Ultraviolet light is a light wave that is invisible to the naked eye. It exists outside the purple end of the spectrum, so it is called ultraviolet light. Ultraviolet light comes from one of the electromagnetic waves of solar radiation. Ultraviolet light is usually divided into four categories according to wavelength. It is a special form of material operation, which is a stream of unconnected particles. Each ultraviolet photon with a wavelength of 253.7nm has an energy of 4.9eV. When ultraviolet light irradiates microorganisms, energy transfer and accumulation occur, and the accumulation results in the inactivation of microorganisms, thereby achieving the purpose of disinfection. When bacteria and viruses absorb more than 3600~65000uW/c㎡ of dose, they have a strong destructive power on the deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) of bacteria and viruses, which can make bacteria and viruses lose their viability and reproduction, and then eliminate bacteria and viruses, achieving the effect of disinfection and sterilization. On the one hand, ultraviolet light can cause nucleic acid mutations, hinder their replication, transcription blockade and protein synthesis; on the other hand, the production of free radicals can cause photoionization, leading to cell death. The sterilization principle of ultraviolet sterilizer is to use the radiation intensity of ultraviolet lamp, that is, the radiation intensity emitted by ultraviolet sterilization lamp is inversely proportional to the distance of the sterilized object. When the radiation intensity is constant, the longer the sterilized object stays and the closer it is to the sterilization lamp, the better the sterilization effect, and vice versa.
The following problems and solutions are prone to occur during the operation of UV sterilizers:
I. Poor sterilization effect 1. Insufficient UV intensity • Cause: The lamp is aging, and the surface dirt or scale blocks the UV. • Solution: Clean the lamp regularly (it is recommended to wipe with alcohol or sodium hydroxide), and monitor the intensity (replace if it is lower than 70μW/cm²). 2. The water flow rate is too fast • Cause: The microorganisms are not exposed to enough time. • Solution: Adjust the flow rate to the design range of the equipment, or increase the power of the equipment. 3. Water quality problems • Cause: Suspended matter or impurities reduce the UV penetration rate. • Solution: Strengthen the front-end filtration (such as sand filter) or use higher power equipment.
II. Lamp failure 1. The lamp is not lit or flickers • Cause: The ballast is damaged, the voltage is unstable, or the lamp life expires. • Solution: Check the circuit, replace the ballast or lamp of the same model (avoid direct contact with fingers). 2. Frequent start and stop damage • Cause: Restart the vulnerable lamp immediately after shutting down. • Solution: Avoid frequent switching, with an interval of at least 5 minutes.
III. Equipment component problems 1. Quartz sleeve leaking • Cause: Sleeve cracking or sealing gasket aging. • Solution: Replace the sleeve or gasket, and tighten the gland evenly (avoid overtightening). 2. Ballast abnormality • Cause: Overheating or current overload. • Solution: Regular inspection (every 2-3 years) and replace damaged parts.
IV. Environmental factors 1. Temperature and humidity influence • Cause: Humidity > 70% will reduce the sterilization efficiency. • Solution: Control the ambient humidity below 60%, and the temperature is best around 20.
V. Electrical failure 1. Power tripping or heating • Cause: Line short circuit or insufficient cable power. • Solution: Replace the cable that meets the power requirements and check the leakage point. Daily maintenance suggestions • Regular monitoring: UV intensity (every quarter to half a year), water quality transparency. • Cleaning and maintenance: Clean the lamp tube and quartz sleeve every two weeks. • Record the replacement cycle: The life of the lamp is usually 8000-12000 hours, so replacement needs to be planned in advance. The above measures can effectively reduce failures and ensure the disinfection effect
