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Institute of Environmental Protection Technology
Institute of Environmental Protection Technology
Engineering Technology Department
Engineering Technology Department
FAQ
E-High effect Energy efficient Water Distiller Machine Failure Analysis and Processing

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.

How to calculate the effective dose of ultraviolet light for ultraviolet disinfection equipment

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

Maintenance and care of ultraviolet sterilizers

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.

Tubular Multi-Effect Water Distiller Machine Failure Analysis and Processing

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.

Structure of UV sterilizer

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.

Sterilization principle of ultraviolet disinfector

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.

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Hebei Guanyu Environmental Protection Equipment Co., Ltd. is a large-scale high-tech enterprise established in 2006, integrating technology development, equipment research and development, design, construction, and import and export trade. The company mainly produces ozone disinfection equipment, ultraviolet disinfection equipment,

Injection water system

Injection water system

Drinking water UV disinfection system

Drinking water UV disinfection system

Sewage UV Disinfection System

Sewage UV Disinfection System

Case
Northeast Region Project
Northeast Region Project
Heilongjiang Province: Mishan City Sewage Treatment Plant, treatment scale 30,000m³/d; Harbin City Sewage Treatment Plant, treatment scale 20,000m³/d;
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North China Regional Project
North China Regional Project
Hebei Province: Cangzhou City Sewage Treatment Plant, treatment scale 60,000m³/d;
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