1, Introduction The concept of vortex is quite old. At the beginning of the 20th century, the world already had the patent of vortex technology. However, because of the technical limitations at that time, the vortex mechanism could not be manufactured and the vortex concept was forgotten. The scroll mechanism was reintroduced in 1973 and the first model agency was created, making the practical application of this technology possible. Vortex institutions of high reliability, smooth operation, low noise, energy saving potential and great advantages immediately caused the refrigerator industry attention and urgent needs, greatly favored by the industry leader, was quickly put into industrial applications. Scroll compressor technology and products of well-known companies such as Trance, Hitachi and Copland have led the tide of practical application of vortex technology in the world, which has led to technological progress and product upgrading in many industries such as refrigerators and air conditioners. Today, the vortex technology has been promoted to the vacuum pump manufacturing industry from the initial application in the compressor industry, and has realized the practical application of the vortex cleaning vacuum obtaining technology without any oil, with a smoother operation, lower noise and more energy saving. People use the concept and principle of vortex to create a series of single-stage and two-stage vortex oil-free vacuum pump which has no pollution to vacuum application equipment and environment, and whose indexes such as pumping speed, life expectancy and energy consumption are superior to ordinary oil pump. In the early 90s of last century, the world's first scroll vacuum pump to market, scroll technology thus began as a new type of vacuum access technology is being promoted around the world. So far, the world's vortex vacuum pump manufacturer focused on the United States, Japan and Europe, Japan's Anest1wata, the United States Varian, Germany, Bush as the representative. Products include since 0.25L / S-1OL / S series of products, some 15L / S or more products are also pumping the pilot phase. 2, Features and Applications of 0-Ifree scroll vacuu pump Clean vacuum environment has always been the ideal vacuum environment pursued by scientists and enterprises. Since the beginning to create a vacuum environment, people try to use different means to achieve the effect of cleaning the vacuum. Today, clean vacuum equipment has been developed to a variety of products such as condensate pump, column race pump, claw pump, scroll pump and diaphragm pump. Among the existing oil-free vacuum pumps, the vortex oil-free vacuum pump has the characteristics of stable operation, low noise, energy saving, light weight and small volume as compared with other types of oil-free vacuum pumps and has been widely applied to the following scientific research And the production areas: ①semiconductor industry - thin film preparation equipment, semiconductor device packaging equipment; ② vacuum metallurgy industry - vacuum furnace, nanomaterials preparation equipment, vacuum testing equipment; ③ Scientific Instruments Industry - Synchrotron radiation beam lines, electron microscopes, Analysis and testing equipment; ④ medical equipment - dental equipment, dialysis machines; ⑤ biological products industry - material purification, pharmaceutical preparation; ⑥ packaging industry - food, pharmaceuticals, biological products and other packaging equipment. 3, vortex oil-free vacuum pump working principle, technical indicators and compared with the ordinary oil pump vortex scrollless oil-free vacuum pump is one end connected to a plane with one or several involute spiral form a scroll plate Like structure. A pair of scrolls consisting of a fixed scroll and an orbiting scroll form the basic suction mechanism for a scrollless oilless vacuum. For example, in a two-stage vortexless oil-free vacuum pump, there are two directions of a fixed scroll and a orbiting scroll between two scroll plates. Dynamic and fixed vortex scroll to form a relatively constant volume of crescent-shaped vacuum chamber so that gas suction from the suction port, the exhaust port discharge to complete the exhaust cycle. As we all know, oil-free vacuum pump (Oilfree scrolI vacuum pump) compared with the ordinary oil vacuum pump has significant features. Below the ordinary rotary vane vacuum pump, for example, to illustrate the difference: Table 1 vortex oil-free vacuum pump and ordinary direct-coupled rotary vane vacuum pump technical indicators of comparison Technical indicators Rotary vane vacuum pump vortex oil-free vacuum pumping speed (l / s ) 2.0,4.0,82.0,4.4,8.7 Ultimate vacuum (Pa) 0.6 1.0 Service life (h) Overhaul interval (h) 8000 10000 Cooling medium oil Air noise (dB) 7560 Mass (kg) 7041 Number of motor phases 31 Voltage (V) 220/380 220 Power (kw) 1.1 0.6 Number of revolutions (r / min) 1400 1437 4, the advantages of vortex oil-free vacuum pump and its problems to the user 4.1 vortex oil-free vacuum pump superior performance Vortex vacuum pump is the main advantage of the gap Xiao, less leakage, with a higher compression ratio, in a wide range of force with a stable pumping speed, wide range of working pressure; due to changes in the volume of the compression chamber city continuous, and thus Small changes in drive torque, small power changes, low vibration and noise, high reliability. This is not available with other types of dry vacuum pumps. 4.2 vortex oil-free vacuum pump to solve the basis of pollution and vibration, common problems due to common rotary pump oil spills, noise, oil pollution, high energy consumption and vibration and other issues to the user adverse effects, such as the biological products industry and Oil vapor pollution in the semiconductor industry and process system return valve title. Vacuum coating equipment coating process, coating under 20 ~ 40Pa vacuum conditions, if the application of ordinary rotary vane vacuum pump as a front-stage vacuum pump coating equipment will cause pollution, affecting the amount of film. The semiconductor wafer manufacturing process which uses the pump compared with the use of dry pump, the yield rate of 509l left the gap between the left and the oil mist emitted steam pollution of the environment. In the scientific instrumentation industry, especially in the analytical instrumentation industry, the use of a pump will adversely affect the test results. Large synchrotron radiation beam line on the mining with vortex oil-free vacuum pump as a front-stage vacuum pump role is quite obvious. In addition vortex oil-free vacuum pump consumption in addition to ordinary oil pump to the user to bring the environmental pollution and annoyance. 4.3 Vortex oil-free vacuum pump system manufacturing and operating costs to reduce the common rotary vane vacuum pump oil on the vacuum system to the oil pollution, the need to add cold trap in the extraction system to capture oil molecules; system operation process also need regular Cleaning degreasing; some need to regularly replace the vacuum pump oil. The first use of vortex oil-free vacuum pump does not need to add cold trap and the like oil catching mechanism, the second does not need to change the vacuum pump oil, the third vibration smaller, more stable operation, the fourth energy consumption is reduced, the fifth weight lighter, Six breakthrough in the use of the pump limits, the advantages of the vortex oil-free vacuum pump to become common rotary vane vacuum pump replacement products. 5. Concluding remarks Domestic semiconductor and electronics industries as the representative of the manufacturing process and scientific research and analytical testing industry urgently need oil-free clean vacuum environment, but the clean vacuum access to equipment such as condensate pump, column pump, claw pump, vortex Pumps and diaphragm pumps currently do not have a reliable and advanced batch of domestic products. Import vortex oil-free vacuum pump as a formal launch in China market no more than 3 years of new products, due to the price of the article mentioned earlier, the market development and user awareness and other reasons, did not form a virtuous circle. In this way, on the one hand, the urgent market demand, on the other hand, there is no suitable product in terms of both price and technology, resulting in a huge market gap. There is no doubt affordable, reliable performance of the vortex oil-free vacuum pump will become the mainstream of products for the Chinese market, vigorously develop the rotary oil-free vacuum pump is imperative. The development of the Vortex Series and other oil-free vacuum pumps that meet the requirements of the Chinese market and their testing techniques have also become an opportunity for the vacuum industry in China to further develop. In order to solve the basic and common problems existing in scientific research, new materials, and semiconductor industries in our country, experts in the industry have continuously introduced the technology of vortex oil-free vacuum pump and its development status in recent years. Foreign vortex oil-free Vacuum pump manufacturers and agents on the Chinese market to make its sales in the Chinese market is growing year by year. Relevant domestic enterprises in the vacuum industry also carried out basic, applied research and small-scale trial production of vortex oil-free vacuum pump and other stages of exploration, but due to technical basis, incentive mechanisms, research and development tools, capital constraints, research and development work is not very fast . Product quality, stability and reliability, and technology promotion and market development planning, principles, tools, etc. are also problems. Therefore, vortex oil-free vacuum pump next step industrialization of technology research and development and market development is an enterprise must solve two major issues. With the development of means, capital investment, market development to solve the problem, vortex oil-free vacuum pump will open the market, thereby enhancing the vacuum access to the industry's technical level. Successful vortex oil-free vacuum pump product development and market development model will also be other clean vacuum access to our equipment such as condensate pump, like Zhai Lei, claw covered with 殛 diaphragm pumps provide an effective reference. Ion exchange resin is a crucial component used in glass fiber reinforced plastic pressure tanks to effectively remove both anions and cations present in water, ultimately softening the water. Ion Exchange Resin,Water Softener Resin,anion exchange resin,Cation exchange resin,Resin Hebei Chengda Water Technology Co.,Ltd. , https://www.arclionchengda.com
The ion exchange resin works through a process known as ion exchange, where it replaces undesired ions in the water with more desirable ones. This resin is typically made up of small, porous beads that contain charged functional groups.
When water passes through the pressure tank containing the ion exchange resin, the resin beads attract and retain the unwanted anions and cations present in the water. These unwanted ions, such as calcium, magnesium, iron, and sulfates, are exchanged with more desirable ions like sodium or potassium.
The exchange process occurs as the water flows through the resin bed, allowing the resin beads to selectively trap the unwanted ions and release the desired ions. This effectively removes the minerals responsible for water hardness and replaces them with softer ions, resulting in softened water.
Softened water offers various benefits, including preventing scale buildup in pipes and appliances, improving the efficiency of water heaters, reducing soap scum and residue on surfaces, and providing better lathering and cleaning capabilities.