Weak current College】 【condensed type filter development and design --- Power By】 【China power house network.

<br> Highlights in condensed type filter of the development, design and and air compressor factory original product performance is different. New condensed type filter enables the air to tangential, use wire mesh foam destroyer and fine filter, replace the original ceramic pipe pile up .filtering and felt winding filtering method. In the filtering accuracy, airflow resistance characteristics such as performance uniformity has certain advantages, and low cost, few life long, economical and practical. <br> <br> 1 preface compressed air as a dynamic energy is .widely used in petrochemical, textile, chemical, defence, etc. But compressed air contains impurities. These impurities from the atmosphere, the compressor itself and pipeline systems. According to statistics, the atmosphere per cubic metre of about 1.4 billion particles, and 80% .of the particle size of less than 2 millimeters, but this small particles of gas filtration is the compressor cannot be eliminated; the use of oil lubricated compressors work process itself generated waste or contaminated product gas, depending on the compressor working conditions and differences between models ., pollutants are usually 5-changes between 50mg/m3. At present, the majority of non-oil-lubricated compressor is only half the non-oil lubrication type. Due to the crankshaft and piston rod connections still uses a lot of work some splash .lubrication, oil vapor will go down into the cylinder piston rods, lead to gas oil in the trace. In addition, from the gas compressor with temperature falling precipitation water and pipeline hisazumi rendezvous, formation of rust, solid particles and other impurities. Therefore be .on compressed air purification treatment is very necessary. 2 gas compressor and original air filter structure, principles of air compressor plant previously used in air filters GYF-3 / 8, GYF-6 / 8 type oil-water separator on air purification, its structure .diagram shown in Figure 1, it works is: the compressor and the cooling of air from entering the device into the trachea, the spiral separation, larger particles and liquid droplets are thrown to the tube wall, sewage valve exhaust, intake line to head at .the top of the cone cover, the collision of the change to the gas flow, fold into the chaotic accumulation of ceramic rings (Rasi). Gas in ceramic Ring unbroken baffle, oil, water continued to separation. Gas continue upward by the rough filtration .components, filtration components and finally through the exhaust pipe. The role of the exhaust pipe is coarse and fine filtration of oil, water, dust, etc. After this installation process, the oil content of air (5mg/m3, including dust particle diameter .(5um, such dust index can only meet the General requirements, biochemical, pharmaceutical, scientific research and so on compressed air high demands of the industry will not be able to satisfy. <br> 3 condensation filter design this article attempts to design new condensed .type filter structure diagram shown in Figure 2. Its working principle is: from oil-lubricated compressor rear exhaust gas, the cooler, tangential to the cylinder and cylinder and cylinder formed circular room forcing, high-speed rotating air suspension for large particles in the .air and thick oil, water droplets by centrifugal separation, was thrown to the tube wall, in respect of the action along the inner wall of the cone-shaped head tube and clearance between the cylinder and deposition to the sinking of the bottom of the container ., via automatic drain valve. Air Rotary-tube met conical bottom and lid, changed the flow direction, baffle into stainless steel flat screen. The screen is a kind of watong like very like the thin flat-shaped stainless steel wire braided into a network .with structures, Internet is even ring, can be used for gas-liquid and gas-solid separation, and can intercept some particles. As these particles and droplets of generation grew up in a smooth screen surface subsidence and discharge. Gas up with fine filter ., to continue to achieve aerosol grew up and gravity of condensed, depositional elements within the landing valleys of oil-water drain through the exhaust pipe. 4 condensation filter performance analysis of the structure of oil-water separator is a centrifuge, coarse filter, fine .filter the three procedures in one compressed air, can effectively remove the dust, moisture, oil mist and other impurities, the purification of gas oil content ≤ 1mg / m (, dust particle diameter ≤ 1 μ m. Able to JB/T5967-97 ."pneumatic components and systems for air media quality grading" oil, dust index greater than or equal to the filter's performance indicators for the industry to provide clean air source. This new type of filter for eliminated the original old products, it has the following advantages .: first of all, in centrifugal separation method, it has changed the previously that spiral blades welded structure, and now the tangential. Avoids machining limited and spiral blade surface rugged, welding deformation capacity is large, and difficult to machining, welding, etc. .The new structure simplified the process technology, reduce costs, and improved isolation effect. Secondly, the more successful using domestic wire mesh foam destroyer component replaces the ceramic tube stacked filter method. Short section Ceramic tube chaotic accumulation, air flow through, several of the .baffle, collision, to isolate the part of oil, water, dust, but because of the high pressure gas flow, resulting in ceramic pipe between impact, there will be broken particles appear, and easy second air pollution. While the use of stainless steel .flat-screen, no pollution, and it is extremely easy to clean, and excellent separation effect, reduces post filtration components of load, extended precision filter life. Third, the use of certified precision filter replaces the old product that original blankets winding filtering method .. Felt filter over time extension is impurity absorption saturated, extremely easy to plug felt holes, significantly reducing filtration area, increasing the pressure loss. More seriously, if not timely removal of impurities, felt bore these impurities after through the hole and the finished product ., making the gas mixture of original design targets cannot be achieved. Whereas new uses precision filter is a high-tech products, it can be the Western industrialized countries compared to the beauty of precision filter. The filter for filtering mechanism relies on direct interception, .inertial collision, diffusion (Brown), condensation, and other effects. Filter using micro-fibers of woven and enhanced filter paper and other rules of distribution arrangement, due to the relatively smooth surface of the filter material, impurities in their surface is assembled, .extremely easy to sink and discharge device, the quality of the finished product gas. Fourth, the original manual sewage system replaced a manual, automatic sewage and of the system. In general the manual drain valve closed, automatic drain valve. If automatic sewage valve .repair failure or to turn it off, andManual drain. The reason for this design are: current domestic production of automatic drain valve although more, but the quality is unsatisfactory. Foreign auto drain valve quality while reliable, but its high cost, from economic aspects .into account, not imported valve. So, manual, automatic and sewage system reliable and economic. 5 conclusion above, use the new condensed type filter is designed to be successful and meet the specifications for the design of the filter and principles. It has the .filtration accuracy is high, accurate, reliable, gas flows evenly, without stranded, the volume small, the dust, filter is easy to replace, the resistance is small, long life, low cost, high degree of automation of work benefits. But with .the industry on compressed air higher demands, higher precision air filter design will be our new issues and new challenges..