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 Posted: Fri 16:11, 17 Dec 2010 Post subject: air jordan shoes cheap In order to manufacture and |
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In order to manufacture and use of gas: - The application of gas analysis equipment manufacturing and application of
Concentrations of up to PPB level. Determination of trace water in gas equipment capacitive hygrometer in the industrial production of alumina and in the laboratory, they often need the moisture content of the gas measured. Thus a wide range of moisture content measurement methods and instruments came into being. Although various methods has its own characteristics, but in general, for the work - the production process can be fast, accurate method of continuous measurement of moisture content is still minimal. Many types of hygrometers are the existence of pollution problems caused by sampling, sampling of the thousands of pipes and appliances humidity often cause changes in water content in the original sample. Humidity will facilitate the emergence of different new liquid equilibrium,[link widoczny dla zalogowanych], which can cause changes in water content. SIIAW PANA company developed companies and many foreign manufacturers by the widely used alumina hygrometer can overcome these difficulties to complete the moisture content in the context of a larger line continuous monitoring. High sensitivity as electrolytic electrolytic hygrometer hygrometer with stable operation, without the advantages of regular school eyelid, it has developed in recent years, foreign electrolytic hygrometer,[link widoczny dla zalogowanych], will greatly improve the sensitivity and detection limit reached the PPB. Such as the UK SYSTECH's electrolytic hygrometer, MM1000-based detection range of 0 ~ 10/100/1000PpmH0, and MM2000 type is 1ppb ~ 1O00ppmI '{0. Inside the instrument, polishing stainless steel piping used in all chemical run-length 110 1 / 2002 steel, in order to reduce the water adsorption and desorption equilibrium time. The instrument is dedicated to the ultra pure hydrogen gas does not trace the examination of water removed. Determination of the oxygen content of gas in the air separation equipment, and other gas products, the detection of oxygen as the main test items has always been done. It usually includes a constant, and the risk of trace amount of a wide range of concentration detection range. Because the detection of oxygen content with such an important position, so many manufacturers at home and abroad developed different types of instruments. This article describes two of them for the determination of oxygen content of the instrument. These two types of air separation and gas is also the most widely used manufacturing process the most widely instruments. Boat with a 700 series process oxygen analyzer (1) fuel cell oxygen analyzer and wide linear range of this analyzer. Quick response, the sensor easy to maintain,[link widoczny dla zalogowanych], with air check. Analyzer and supporting the use of gas sampling system,[link widoczny dla zalogowanych], especially for online analysis. The use of different conditions may have different sampling systems. (2) Hz Hz battery cell oxygen analyzer oxygen analyzer (ie, primary cell oxygen analyzer) is wet oxygen analyzer, and the fuel pool, this method has high sensitivity, faster response, anti-interference and good. In recent years,[link widoczny dla zalogowanych], rapid development in foreign countries, and different products have their own characteristics. The following name just two examples of hydrocarbons in liquid oxygen liquid oxygen analyzer hydrocarbon (CH). At present, many domestic manufacturers, especially large and medium-sized air separation plants and healthy plants have established base of liquid oxygen in the CH analysis is usually used with a hydrogen flame detector gas chromatograph to complete. Determination of oxygen in a sample can be C1-C4 organic ingredients were more than l0 content. Gas production process according to the different needs and specific conditions of use, the instrument can be divided into on-line continuous measurement and automatic time in the laboratory or random sampling of two categories. For monitoring <10ppbC2H2 time, you must use with discharge of the gas chromatograph detector to complete. Purification of carbon dioxide in the air in the air separation plant analyzer, the purified air into the tower to monitor carbon dioxide is a very important issue. However, due to the lack of suitable domestic instruments, and often do not understand the level of foreign equipment, it is to buy some units is very unreasonable and supporting not only a waste of resources ounces, and can not guarantee normal production. If the current domestic large and medium air separation line with the general CO analyzer, the detection limit of the range Oppn! ~ 20ppm, so that the concentration of the control signal response indicator is not in range, so equipment can not control the concentration range of the following indicators 2pDIn accurate measurement and display results. Furthermore, if allowed to drift from a range of online analytical instruments to consider, not to monitoring purposes. Process gas chromatograph in the air separation production, there are many important ingredient needed constant line continuous detection and control, such as hydrogen content of excess argon, the oxygen content of ammonia pollution, the oxygen content of the crude argon, nitrogen and hydrogen content analysis, helium, nitrogen and oxygen in the purity analysis. Constants of these species commonly used thermal conductivity type gas analyzers. General air plant (station) selection of the more common domestic instrument. But to ensure a number of large and medium air separation unit in order to ensure the normal operation of production and reduce the unnecessary trouble, wide selection of imported equipment at home often. Obtain detailed information on the circle in the 339
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