Technical features
Reverse osmosis uses a physical method without phase change to desalinate salt water at room temperature. The desalination rate of the ultra-thin composite membrane element can reach more than %, and it can simultaneously remove colloidal organic matter, bacteria, viruses, etc. in the water
It adopts imported reverse osmosis membrane
with high desalination rate, long service life and smooth operation. Low cost
Adopt fully automatic pretreatment system to achieve unmanned operation
Use imported Grundfos booster pump, high efficiency, low noise, stable and reliable
Online water quality monitoring control, real-time monitoring of water quality changes to ensure water quality safety
Fully automatic electronic control program, optional touch screen operation, easy to use
Personalized design in line with local water quality, fully meeting needs
The equipment occupies a small area, The required space is also small
The reverse osmosis device has a high degree of automation, and the workload of operation and equipment maintenance is very small
Water treatment only relies on water pressure as the driving force, and its energy consumption is the lowest among many treatment processes.
It does not require a large amount of chemical agents and acid-base regeneration treatment, no chemical waste liquid discharge, and no environmental pollution.
Reverse osmosis can continuously operate water production. The system is simple, easy to operate, and the product water quality is stable.
< Drinking water equipment
Purified water equipment process flow
Raw water rr Raw water pressure pump rr< r> Multi-media filter
Activated carbon filter rr Water softener rr Precision filter rr One-stage reverse osmosis rr< b/_r_> Adjustment rr intermediate water tank rr two-stage reverse osmosis rr pure water tank rr pure water pump rr microporous filter rr water point rr
Purified water equipment treatment method
1< r>Sedimentation method
: Water is pre-treated by natural sedimentation method with large volume and low flow rate, such as sedimentation tank.
Second coagulation method: Using coagulants such as iron and aluminum polymers to react with impurities in the water to form large particle sediments through flocculation and bridging, which are then removed through other equipment.
Three filtration methods: The treated water flows through a device equipped with special filter materials to intercept impurities in the water and remove them.
Four softening method: Use chemical agents or cation exchange resin methods to remove calcium, magnesium and iron ions in the water.
Five disinfection methods: Add chemicals or use ultraviolet ozone and other methods to eliminate microorganisms and bacteria in the water.
Pure water equipment process system
Pretreatment system
is very important as the basis for< r>purified water
production. Therefore, if you want to produce pure water, you must choose a place with better raw water quality. Such as mountain springs, deep wells, etc. A very important index involved here is conductivity. Generally speaking, the lower the conductivity, the purer the water. The water treatment process uses a < b/_r_>< r> reverse osmosis system
. The treated water can generally achieve a desalination rate of %%. Let me introduce the components of this system.
Raw water pump
The raw water pump is used to provide raw water pressure for the raw water pretreatment system. If the raw water has pressure, you don't need this equipment at all. Generally required raw water pressure
Raw water tank
The function of the raw water tank is simpler and is used to store raw water. This is because we are afraid that the raw water will be transferred if the supply of raw water is not available (usually adding a float switch will make the entire system more automated).
< r>Quartz Sand Filter
Use< r>Quartz Sand
filter material to remove larger particles of suspended solids, sediment and impurities in the raw water and reduce the turbidity of the water. Moreover, organic matter, bacteria, viruses, etc. in the water can be removed in large quantities as the turbidity decreases, creating good conditions for post-filtration disinfection.
< r>Activated carbon filter
Use the adsorption capacity of activated carbon to effectively adsorb organic matter, free residual chlorine, colloidal particles, microorganisms, certain metal ions and decolorization in raw water.
Softening system (dosing system)
Use the exchange performance of ion resin to remove calcium and magnesium ions in the raw water to prevent the influence of scale on subsequent equipment, but the operation is labor-intensive and material-intensive. Change to < r>dosing system
and add antiscalant directly to it.
Mainly solve the following problems:
Prevent organic pollution
Prevent clogging of colloids and suspended solid particles
Prevent oxidative damage to the membrane caused by oxidizing substances. This can ensure the stable operation of the reverse osmosis device and Normal service life.
Prevent scaling and deposition of iron and aluminum oxides on the reverse osmosis membrane surface
Reverse osmosis system
< r>Reverse osmosis technology
Successful application in pure water equipment , which provides a good development space for my country’s drinking water. The implementation of reverse osmosis technology requires the cooperation of multiple system technologies.
Water to be treated
Water to be treated can be sewage, tap water, river water, underground water and other water sources. We usually use tap water and groundwater as the treated water for reverse osmosis treatment. The water quality is relatively sensitive, the degree of pollution is low, and the treatment efficiency is fast.
Pretreatment system
The pretreatment system performs simple water quality filtration for the water to be treated. The treated water is as close as possible to the water quality requirements of reverse osmosis technology. In the treated water, if no pretreatment is performed, the reverse osmosis membrane will be easily damaged and blocked due to certain magazines or high-force corrosion during reverse osmosis treatment.
High-pressure water pump
The entire reverse osmosis water treatment process requires a certain amount of pressure. The high-pressure water pump provides pressure to the entire water treatment system to ensure the speed and water supply requirements of the membrane pores. The high-pressure water pump must use a special stainless steel corrosion-resistant water pump, because the acid and alkaline substances contained in the water treatment solution will corrode. If the corrosion resistance is weak and corroded, it will cause such pollution of the water.
Intelligent control system
New reverse osmosis equipment will be equipped with a dedicated intelligent control system. Detect data changes in instrument panels such as thermometers and pressure gauges through intelligent systems. Controlled by computer, equipped with simulation screen. Able to control the normal operation of the entire set of reverse osmosis equipment. And the water is manually set according to the needs of water treatment, and alarm prompts are issued according to the operating status of the equipment.
Water storage in sealed water tanks
After the reverse osmosis equipment completes water treatment, the treated water must be collected through a professional water tank. The water tank must be clean and anti-corrosive to avoid contamination of the water.
Auxiliary system
Some other< r> Auxiliary systems
For example, ozone sterilization system, light inspection and filling system. Ultraviolet rays can also be used to sterilize. Ultraviolet rays will not leave any residue. Many people abroad like to use ultraviolet rays. It's maintenance. Careful equipment maintenance will make the equipment handy. Therefore, when operating pure water equipment, care should be taken not to damage the machine. When operating pure water equipment, attention should be paid to
Preventing filter material from entering the reverse osmosis device: Choose a suitable filter outlet device to prevent filter leakage and activated carbon. Choose a suitable activated carbon to prevent powder loss during use.
It is best to set up an independent water supply system for large-scale pure water equipment that uses tap water as its water source. This can not only ensure the stable operation of the water supply system, but also reduce the instantaneous impact on the entire plant's water supply pipe network when the R system starts and stops. When the R device draws water directly from the raw water pipe network, high and low pressure protection facilities should be installed, because most tap water pipe networks have large pressure fluctuations.
First, the compatibility between agents should be considered, and secondly, the compatibility between agents and membrane materials should be considered. For example, coagulants, coagulants, bactericides, reducing agents and scale inhibitors are often used simultaneously in R systems. Since colloids in natural water are generally negatively charged, positively charged cationic coagulants are usually used. In order to prevent the R device from scaling, the water inlet end of the R is almost always considered to add anti-scaling agents. Most of these anti-scaling agents have negative charges. Therefore, the reaction between the cationic coagulant and the anionic scale inhibitor should be avoided to prevent the colloidal compounds generated by the reaction from depositing on the membrane surface.
The above points are extremely important during the use of pure water equipment. They are not only the protection of the equipment, but also the guarantee of production.
Application scope of pure water equipment
Preparation of space water, purified water, distilled water, etc.
Alcohol manufacturing and reduced water use
Preliminary preparation of water for pharmaceutical, electronic and other industries
Chemical process Concentration, separation, purification and water preparation
Boiler feed water desalination and soft water
Electronic industry ultrapure water
Central air-conditioning water-cooled air conditioning circulating cooling water
Seawater brackish water desalination, paper making, electroplating, printing and dyeing and other industries Water and wastewater treatment.
Development Trend of Purified Water Equipment
< r>Extreme Filtration
Using imported patented filter element system for water purification equipment, the ultrafiltration membrane is upgraded from micron to micron, which ensures the filtration accuracy while processing Electric pressurization enables instant filtering and drinking, which can keep drinking water in the freshest state.
Sterilization and antibacterial
The antibacterial properties of copper materials have long been recognized internationally. European and American countries have used copper water supply pipes for decades. All drinking water pipes in the Beijing Olympic Water Cube are also made of copper. of. In the all-copper pipe water dispenser, all parts that come into contact with water are made of copper materials, which can achieve antibacterial control in the entire process of water storage and discharge.
Energy Saving and Environmental Protection
One of the main contradictions of water dispenser technology is that it does not fundamentally solve the problems of heat dissipation and energy consumption. The latest water dispenser uses a vacuum liner to keep the water warm. It only needs to be heated ~ times a day, which solves the problem of repeated heating. In addition, the instant hot water dispenser takes advantage of the excellent thermal conductivity of copper and takes only seconds from heating to dispensing hot water. It not only adapts to the requirements of the industry and consumers' requirements for speed, but also reduces the power consumption of the water dispenser.
Purified water equipment control system
Easy to operate, one-touch operation
After the installation and debugging is completed, there is no need to debug again, eliminating the need for complicated button switches and other operations. The machine can be turned on and off by just Complete with a key on the panel.
Fully automatic operation, realizing unattended operation
Automatic operation, automatic protection and automatic online monitoring of system equipment. At the same time, the system can realize manual and automatic switching. Under abnormal operating conditions, the equipment water pump control valve, etc. can be manually operated.
< r>Purified water equipment self-protection function
A low-pressure pressure switch is installed at the inlet of the high-pressure pump. When the pump inlet pressure is lower than the pressure, the pressure controller will act to stop the equipment and ensure the safety of the high-pressure pump. .
A slow-open electric valve high-pressure switch is installed at the outlet of each set of high-pressure pumps. When the outlet pressure is higher than the pressure, the pressure controller will act to stop the equipment and ensure the safety of the high-pressure pump membrane components and membrane casings.
The pure water equipment monitors various operating parameters in real time, clearly at a glance
The reverse osmosis main water inlet pipe is equipped with an online conductivity meter to detect the quality of the raw water
The reverse osmosis device is equipped with a fresh water flow meter and A concentrated water flow meter is used to observe the operating status of reverse osmosis and adjust the system recovery rate based on two flow values
An online conductivity meter is installed on the freshwater side of the reverse osmosis device to monitor the conductivity of freshwater and calculate the desalination rate of the system
Pressure gauges are installed between the inlet and concentrated water sections of the reverse osmosis device to monitor whether the reverse osmosis operation is normal
A pressure gauge is installed at each inlet and outlet of the multi-media filter
A pressure gauge is installed at each inlet and outlet of the security filter Pressure gauge
Pure water equipment liquid level control system
The relevant water tank is equipped with a liquid level controller, which is interlocked with the equipment to control start and stop
Automatic control of the chemical adding device
Automatic start of the chemical dosing pump Stop, the liquid level in the medicine tank automatically alarms, prompting the operator to prepare the medicine liquid
Purified water equipment process description
Purified water equipment cleaning method
Low-pressure flushing technology cleaning method
In daily life When we use pure water equipment, we must also rinse the equipment, because long-term use will cause pollution of the pure water equipment and cause the equipment to not work properly. We should regularly use low-pressure flushing technology to clean dirt on the surface of the equipment.
Protection method of stopping equipment operation
If the equipment is operated for a long time, the reverse osmosis pure water equipment technology will fluctuate. Once the pure water equipment is not treated properly, the membrane performance of the equipment will decrease, and it may become unusable in serious cases. We take protective measures in a short period of time, and appropriately stopping the operation of the equipment is also a method of equipment cleaning and protection.
< r>Chemical Cleaning Method
The membrane surface of pure water equipment is easily covered by some microorganisms or inorganic substances, which affects the operation ability. Our ideal cleaning time is to clean it every six months. If the pure water equipment is cleaned every It needs to be cleaned once every month, which means that we need to adjust the equipment parameters and improve the pretreatment system. For this reason, chemical cleaning of the membrane of the pure water equipment is also a way to protect the pure water equipment system.
Description of purified water equipment
Although ultrafiltration purified water equipment technology started late in our country, ultrafiltration purified water equipment technology started late in our country, but it is developing very rapidly. With the continuous promotion of this technology As people's awareness of it continues to increase, the beverage production industry will surely gain more benefits from it.
Ultrafiltration membrane equipment has several different forms in industrial applications, such as flat, tubular, spiral, and hollow fiber. At present, most of the membranes used in China are plate and tubular, especially hollow fiber membranes (hollow fiber membranes) which have also been widely used in water treatment.
< r>Hollow fiber ultrafiltration membrane
is the most mature and advanced form of ultrafiltration technology. This kind of membrane is a membrane with a three-dimensional geometric shape developed on the basis of a flat membrane, so that the membrane equipment per unit volume has a large membrane permeability without relying on an extremely thin semi-permeable membrane. The wall of the hollow fiber tube is covered with micropores, and the pore size is expressed in terms of the relative molecular mass of the material that can be intercepted. The relative molecular mass of the intercepted material can reach thousands to hundreds of thousands.
Due to the hollow cylindrical configuration, the production capacity of membrane permeability equipment per unit volume is greatly improved. Raw water flows under pressure outside or inside the hollow fiber, forming external pressure type and internal pressure type respectively. Ultrafiltration is a dynamic filtration process. The trapped substances can be eliminated according to the concentration without clogging the membrane surface, and can operate continuously for a long time. It can be proved that in ultrafiltration applications, if a cylindrical bundle of reasonable small-diameter hollow fiber membranes is used, the amount of permeated liquid will be equivalent to that of an ultra-thin flat membrane of more than ten square meters.
The hollow fiber is a slender membrane tube with a membrane layer on the inner wall. The membrane layer is combined with the sponge-like outer wall. The outer wall has coarse pores and the inner layer plays the role of ultrafiltration separation. The size of the inner membrane pores determines the size of the blocked material in the tube. The hollow fiber has an internal diameter of approximately 100 Å, is made of inert nonionic polymers, has a unique anisotropic (skin) structure, and has a significantly high flow rate. Its characteristics are:
①The membrane area per unit volume in the device is very large
②The membrane wall is thin and the liquid permeates quickly
③Due to the geometric configuration of the hollow fiber, it has certain pressure resistance , so the strength is high.
There are two categories of beverage sterilization methods: < r>physical sterilization
and < b/_r_>< r>chemical sterilization
. Chemical sterilization rituals use disinfectants such as hydrogen peroxide, ethylene oxide, and sodium hypochlorite. Due to the influence of chemical residues in chemical sterilization, contemporary food sterilization methods tend to be physical sterilization methods. Physical sterilization methods are divided into thermal sterilization methods and cold sterilization methods. Thermal sterilization method is further divided into thermal sterilization method, dry heat sterilization method, microwave sterilization method and far-infrared heating sterilization method. Cold sterilization method is divided into ultraviolet radiation sterilization method, ionizing radiation sterilization method and freezing sterilization method. Among the moist heat sterilization methods, there are pasteurization, high temperature short-time sterilization and ultra-high temperature instant sterilization.
The so-called< r>Pasteurization
is a low-temperature and long-term sterilization method. The sterilization temperature is lower than ℃ and the holding time is. In the high-temperature short-term sterilization method, the sterilization temperature is generally below ℃. For example, the sterilization temperature of milk is ℃, and it should be kept above. Ultra-high temperature instant sterilization method, the sterilization temperature is above ℃ and only maintained for a few seconds. And sterilization method, not only has high efficiency, but also the structure and appearance of food, nutrition and flavor are better preserved than other sterilization methods. (r)
Purified water equipment installation steps
Place the purified water host and preprocessor close to the water source and power supply.
Equipped with quartz sand, activated carbon, softening resin and other filter materials.
Connect the waterway: the raw water pump inlet is connected to the water source, the prefilter outlet is connected to the host inlet, and the preprocessor host drain outlet is connected to the sewer with pipelines.
Circuit: First, connect the grounding wire to the ground reliably, and connect the supplied power cord to the electrical control box in the room.
Plug in the water source and power supply, and operate according to the steps according to the requirements of the pretreatment operation instructions. The pretreatment debugging operation is completed.
To use this machine, turn the original water pump switch to the automatic position and turn on the stop switch. Connect the water source power supply, and when the pressure at the multi-stage pump port reaches the set value of the pressure controller, the multi-stage pump starts working. After the multi-stage pump is started, adjust the system pressure. The R membrane system should be manually flushed for 10 minutes when started for the first time.
< r>Pure water equipment ultrafiltration technology
Purified water plant equipment to produce mineral water is a relatively extensive treatment technology, and its effluent water quality, color, coolness, taste, good taste and thorough sterilization. Ultrafiltration technology can be used as pretreatment for reverse osmosis equipment, and can also be used for material separation and purification in chemical and food industries.
Ultrafiltration technology is a membrane separation process that uses sieving as the separation principle and pressure as the driving force. The filtration accuracy is within a certain range and can effectively remove particulate colloidal bacteria and high molecular organic matter in the water. It can be widely used in the separation, concentration and purification of substances to produce pure water.
Research on pure water plant equipment has clearly shown that the ultrafiltration system of pure water production equipment can effectively control seawater quality and provide high-quality incoming water for the reverse osmosis system. Long-term tests have shown that the output water value of the ultrafiltration system Can be very good no-load in the following, these tests do not require any pretreatment before the ultrafiltration system, and are applicable to various seawater quality.
After-sales service
The company implements one-year warranty and lifetime warranty for each set of equipment provided. It has a complete parts library, provides all spare parts, and provides users with relevant Suppliers/manufacturers of equipment and consumable materials
Within one year from the date of acceptance of the equipment, unless there are force majeure factors such as man-made or natural disasters, if the water output fails due to quality problems of the equipment itself, Our company will be responsible for free repair or replacement. Maintenance services after the free maintenance service period will only be charged a reasonable cost.
Before the equipment is debugged and delivered for use, complete operation and maintenance procedures will be provided to customers, free operation and maintenance training will be provided, and a service engineer will be stationed on site to follow and operate the service day after day
During the annual warranty period, service engineers are dispatched every month to check the operating status of the equipment on site, and make irregular phone calls to visit the operating status of the equipment. Outside the warranty period, after-sales service engineers and technicians make regular visits to equipment users, regularly check operation records, and collect feedback information and guidance. Assist users to solve related problems.
Provide users with relevant technical consultation and rational suggestions for reducing operating costs
According to the equipment condition, if our company receives a repair notification, it can be solved by phone, and it needs to be on site within hours. solve.
Contact person: Wang Peng