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The high recision filter technology in modern manufacturing
2012-10-16
With the trends of modern manufacturing technology, high-speed, high-pressure, high control accuracy, high automation and high reliability, mechanical power transmission equipment increasingly common part of the axial piston pump, proportional valves, servo valves, hydrostatic hydraulic bearings. The normal operation of such a system the oil cleanl... With the trends of modern manufacturing technology, high-speed, high-pressure, high control accuracy, high automation and high reliability, mechanical power transmission equipment increasingly common part of the axial piston pump, proportional valves, servo valves, hydrostatic hydraulic bearings. The normal operation of such a system the oil cleanliness demanding, from 75% to 85% of system failure due to particulate pollutants in the system. Particulate pollutants on the surface of the cutting element movement, adhesion, erosion often caused by proportional servo system hysteresis increases slow response, control failure and pump and bearing damage and even catastrophic accidents. Commonly used for such problems, periodic replacement of components, monitoring the state of the system at any time, and even increase the dynamic clearance of the moving surface to reduce accidents. High-precision filter technology s for the blood of the machinery and equipment - oil (including hydraulic fluids, lubricants, cutting fluids), based on the high reliability requirements of the system is running, the philosophy and strategy of proactive maintenance, comprehensive understanding of the operation of equipment status and dynamic components gap, reasonable selected filter, the filter filtering accuracy and filter area, high efficiency filter gap size particles, blocking the chain reaction of wear, in conjunction with regular monitoring to ensure the cleanliness of oil products and systems, which to reduce wear and avoid maintenance and prolong the service life of components and equipment, and improve the overall economic efficiency of the purpose. The application of high-precision filter technology The high-precision filter technology came into being with the metallurgical high-speed rolling technology, modern hydraulic technology, aviation and aerospace technology. In the manufacturing industry, pollution control and proactive maintenance concept has not been widely promoted, high-precision filter technology has not been widely used. Calling attention to some developed countries imported equipment in select filtration device and filter element filter accuracy is not enough cause to put into operation shortly after the oil cleanliness that is exceeded, the device is running high accident rate. Beijing Ou Luopu filtering technology development company in the manufacturing process and the actual use of proactive maintenance, improve the comprehensive benefits of the device through the implementation of high-precision filter. High-precision filter implementation in three steps: Determine the typical components of a dynamic oil film clearance and target cleanliness; choose the appropriate filtration system; adhere to the differential pressure to replace the filter with regular monitoring. First, from the angle of pollution control, and dynamic oil film clearance similar size particles most harmful. Since this size range of the particles enters within the gap of the kinematic pair, will cause the parts of the surface abrasion, and the Part gap increases, so that the larger particles into the gap, causing further wear. Continue to do so, wear is growing, and eventually lead to component failure. Experience has proved that the high-precision filter of the selected β3> 200, the life of the pump and motor can be extended by 4 to 10 times, the clamping condition of contamination of the hydraulic valve can be substantially eliminated, and a significant extension of the period of use of the hydraulic oil. Second, the choice of the filtration system from location and installation of the filter than the filter, the filter material considerations. General hydraulic lubrication system filter device early in the design that is designed in accordance with the appropriate specifications, this does not have to go into details, only pressure oil and return oil filtration system that filters the filtering performance to varying degrees by the flow and pressure fluctuations, the The efficiency of the filter is significantly reduced. You can choose to use the high-precision outer loop filter device of the outer loop filtering, the outer circulatory system flow (L / min) is recommended to take 5% to 20% of the tank volume (L), poor working conditions, system cleanliness requirements whichever is greater is recommended. Furthermore, the outer loop filter means can also be before the main system work on the oil in the tank pre-filter, can effectively protect the primary system pump. Simultaneously with the dehydration of oil, in addition to the gas and heat exchange means binding, can be achieved on the oil temperature regulation and integrated pollution control. Filter than choice considering whether the filter element can be dynamic oil film gap size particles fully efficient filter. The high-precision filter is generally used βx> 200 filtration products. Figure 1 shows the curve of the hydraulic system of a vehicle in the three-month field test of oil pollution. System from a nominal filtering accuracy 25μm filter replaced β3> 200 precision filter operation 20min, and the number of particles greater than 5μm in the oil in a 100-fold less. After 300 hours operation, the number of particles greater than 5μm reduced to a minimum value of 2500, the metal debris content is close to 0. However, when the exchange before the nominal filtering accuracy 25μm filter, and after 100 hours, the oil in the number of particles greater than 5μm increased 300-fold, the degree of wear of components has increased significantly. Plant fiber, glass fiber, metal fiber and synthetic fiber material is a depth filter material. Especially polypropylene long fiber filters in the synthetic fiber material, wire diameter fine, even texture, good elasticity, so high precision and impact resistance. With the advances in meltblowing technology, and can be changed by adjusting the process parameters, the fibrous structure to form a gradient filter. The production process does not use adhesive filter high porosity, which take full advantage of the depth filtration mechanisms to improve the assimilative capacity of the unit filter area. Β3> 600, developed by Beijing Ou Luopu filtering technology development company such material highest filtration precision up to the production of polypropylene long fiber filters filter dirt holding capacity, equivalent to 2 to 4 times the same precision filter, is the real meaning on high-precision, long life, large pollutant carrying amount of filtration products. Third, strengthening point inspection, replace the filter by the pressure difference with condition monitoring. The high-precision filter cartridge replacement pressure vary depending on your system, you need to strengthen communication with the manufacturer of the filter according to the scene. Condition monitoring includes not only the oil cleanliness, water content, viscosity, and also includes the iron spectrum, spectroscopy, spectroscopy monitoring measures, but the cleanliness monitoring is a key factor. Of particular note is the cleanliness monitoring sampling methods and testing instruments great samples, sampling the best staff training by the relevant departments. View Details
The filter presses future filter technology development
2012-10-12
We speak in front of a lot about some of the knowledge of the filter press equipment and industry-related events, today Imagine what future filter technology development direction of filter press filter. I think that can only achieve the solid-liquid separation of the situation in the future development of filter press equipment will be out, w... We speak in front of a lot about some of the knowledge of the filter press equipment and industry-related events, today Imagine what future filter technology development direction of filter press filter. I think that can only achieve the solid-liquid separation of the situation in the future development of filter press equipment will be out, will achieve a large volume of a portion of the molecular filtration, such as a dye in the water were separated.Our factory is a filter technology research today here to tell you about what we original plate and frame filter press the transformation design can achieve the the pigment separation filter press equipment. Future realization is separated from the liquid pigment, we will have a plate and frame filter press plate and frame design will be a great change in the two middle widened into account the plate and frame plate sandwiched a layer of special activated carbon, as a new layer of filter medium.We use a general dye molecule is relatively large, while the traditional media (such as cloth) is not blocked, using the adsorption function of the activated carbon can be adsorbed from the liquid dye into the activated carbon. On the basis of the plate and frame filter press, the original layer of filter cloth is changed to two layers of filter cloth, which makes the plate and frame filter press filter cloth, so consider board area of a plate and frame filter cloth The interceptor quality double raise. Placed in the intermediate layer of activated carbon, the use of both sides of the support of the filter cloth, a uniform distribution of activated carbon in which. This versatile filter press filter separation can be achieved.To introduce as we mentioned earlier, the filter press filter technology in the future will be deeper broader food processing industry, the pharmaceutical industry, the development of sewage treatment industry, I believe the next filter press filter substances such macromolecular structure must meet in order to to meet the needs of more industry to the next filter press is more practical. View Details
Technical principles of filter backwash
2012-09-28
Principle of filter technology more and more for our filter backwash, it goes without saying that the role, then we first understand what filter backwash.Filter backwash from the original easy adsorption in the surface of the container orthorhombic crystal, triclinic needle mounted crystal become difficult to adsorption which can not fouling on the... Principle of filter technology more and more for our filter backwash, it goes without saying that the role, then we first understand what filter backwash.Filter backwash from the original easy adsorption in the surface of the container orthorhombic crystal, triclinic needle mounted crystal become difficult to adsorption which can not fouling on the wall, to achieve the purpose of anti-scaling. As the water molecules weaken the role of the magnetic field, electric field scale salt ions combine to form the surface of the open dirt so dirt salt ions become hydrated ions into the water, to heat the furnace wall, the wall on the gradual softening of the original scale, loose their own off, play the role of descaling. The bacteria in the water, algae cells due to the role of high-frequency electromagnetic field, electric field, so that the cell protoplasm produce ionization, affecting the normal metabolism of the cells, resulting in the death of bacteria and algae play a bactericidal algae. Knowledge of installation of filter backwash points, points in the installation of filter backwash knowledge. 1) vertical installation.2) around the device has a certain inspection interval.3) equipment to a minimum spacing of larger capacity appliances (> 20KW) 5 ~ 6m, If you are not able to meet, the shield should be set in the middle of the grounding device.4) The device can be mounted on the total system dry pipe, should be close to the freezing unit bypass pipe should be located.5) device should run synchronously with the system.6) emphasis on sewage, sewage amount of 0.5% to 1.0%, when the volume of treated water is above average, should be located next to the water treatment.7) the reasonable choice of the value of the high frequency of the filter backwash.8) regular cleaning of the electrode.9) System operation concentration ratio should be less than 3.10) The selection of products should be consistent with the industry standard in HG/T3133-1998.Features backwash filter 1, can be adapted to the high hardness water.2, small size, easy installation.3, the output frequency is high, the treatment effect.4, the host reserves for digital communication interface, long-range digital communications, the overall control and monitoring system.5, built-in potentiometer can always adjust the size of the output power, better adapted to the scene changes.6, can live up to 20 years.The backwash filter technology, by high-frequency electromagnetic fields, high voltage electrostatic or the role of low-voltage electric field, dissolved in the positive and negative ions in the water (dirt molecules) are surrounded by water molecules by the magnetic field, electric field, reducing the attractive forces between ions, reducing the effective collision number of times, so that the charged ions in crystal habit changes, less prone to chemical reaction.The above is the principle backwash filter technology, is a great deal of change and supplement the traditional means of filtering. View Details
Reverse osmosis filter technology
2012-09-02
  Osmosis is a process of water through a semipermeable membrane from a dilute solution side to the one side of the concentrated solution flowing spontaneously. Concentrated solution with the continuous inflow of water is continuously diluted. When enough water pressure to the concentrated solution flows used to prevent the water continues to...   Osmosis is a process of water through a semipermeable membrane from a dilute solution side to the one side of the concentrated solution flowing spontaneously. Concentrated solution with the continuous inflow of water is continuously diluted. When enough water pressure to the concentrated solution flows used to prevent the water continues to be a net inflow of penetration in a state of equilibrium, that is, a dynamic equilibrium. When in a concentrated solution of liquid on the applied pressure, and the pressure is greater than the osmotic pressure, the water in a concentrated solution will overcome the osmotic pressure and flows through the semipermeable membrane to dilute solution, so that the greater the concentration of the concentrated solution of the technical process penetrate the opposite process, called reverse osmosis filter technology.The filtering technology is a contemporary state-of-the-art water treatment desalination technology. Reverse osmosis filter technology is the use of the principle of reverse osmosis membrane sub-filters, specific features are as follows:◇ does not occur at room temperature to the phase transition conditions, the use of low voltage power on the solute and water as the membrane separation filter.The ◇ reverse osmosis membrane separation technology impurity removal of a wide range.◇ higher rate of desalination and water reuse rate can be retained solute particle size of more than a few nanometers.◇ filter devices simple operation, easy maintenance, and self-control, on-site health and safety.Due to the advanced, efficient and energy-saving features of the reverse osmosis filter technology, mainly used in pharmaceutical water, purified water, and heat-sensitive substances concentrated, the main application areas include the following:The ◇ food, beverage industry◇ preparation of drinking water, pure water, ultrapure water◇ seawater, brackish water desalination◇ electricity, electronics, semiconductor, industrial water◇ pharmaceutical industry process water preparation with water, water for injection, sterile pyrogen-free pure waterThe ◇ industrial process water, boiler water and cooling water View Details