Discuss how to correctly choose gas turbine meter scale

Abstract: introduction to how to correctly choose gas turbine meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Abstract: with the development of west to east gas pipeline project, the use of natural gas is becoming more and more widely, in the use of natural gas in the process of gas turbine flowmeter has become the indispensable one kind of measuring instrument. In this paper, the gas turbine flowmeter selection, use, d. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a introduction to how to correctly choose gas turbine meter scale article details. As & other; West-east gas & throughout; The advancement of engineering, the use of natural gas is becoming more and more widely, in the use of natural gas in the process of gas turbine flowmeter has become the indispensable one kind of measuring instrument. In this paper, the gas turbine flowmeter selection, use and maintenance problems that should pay attention to introduce as follows, for readers' reference. One, the selection of gas turbine flowmeter selection should consider from the following several aspects: 1, the level of accuracy: in general, selects the turbine flowmeter is mainly focuses on its high accuracy, but the higher the accuracy of flowmeter, more sensitive to the change of site conditions of use, therefore, the selection of precision instrument carefully, should from the economic point of view. Trade settlement instrument, for large diameter gas pipeline on the instrument investment is more economical, and on the occasion of medium accuracy with low throughput level. 2, flow range: the choice of turbine flowmeter flow range have large effects on the accuracy and use fixed number of year, and each diameter of flowmeter has the certain measuring range, flow meter caliber choice is determined by the flow range. Select the principle of the flow range is: zui small flow rate shall not be lower than when using the instrument allows measuring zui small flow rate, when using the zui big flow rate shall not be higher than the instrument allows the measurement of zui traffic. For instrument operation time is not more than eight hours a day in the intermittent work situation, choose the actual when using zui large flow rate of 1. Three times as the maximum flow range; For daily instrument the actual running time no less than eight hours of continuous work situation, choose the actual when using zui large flow rate of 1. Four times as flow range limit. Instrument minimum flow used in actual zui small flow of 0. Eight times as appropriate. 3, the density of the gas, the gas turbine flowmeter, fluid property is mainly the influence of the gas density and its effect on the meter coefficient is larger, and mainly in the low flow area. If gas density change frequently, to meter the flow coefficient of correction measures. 4, the pressure loss: as far as possible choose small pressure loss of turbine flowmeter. Because the smaller the pressure loss of fluid through the turbine flowmeter, the fluid from input to output pipe the energy they consume less, that the total power will be reduced, thus can greatly save energy, reduce the transportation cost, improve the utilization rate. Someone did test, pressure loss of the influence of main component is a former director of turbine flowmeter, choose diverter before half ellipsoid compared with before choosing pyramidal flow diverter, the pressure loss of the turbine flowmeter can be greatly reduced. 5, structural type: ( 1) Internal structure appropriate chooses the type turbine flowmeter. Because the push structure within a certain range of traffic in a floating state, can make the impeller axial there is no contact point, endless surface friction and wear, can prolong the service life of bearing. （ 2) According to the pipeline connection mode selection, flowmeter has two ways of the horizontal and vertical installation, horizontal and pipeline connection flange connection, threaded connection and connection. Medium caliber choose flange connection; Small diameter and high pressure pipeline choose threaded connection; Clamp connection is only applicable to low pressure medium and small diameter; Vertical installation only threaded connections. （ 3) According to the environmental condition selection, considering the influence of temperature and humidity. Natural gas measurement to choose this type explosion-proof turbine flowmeter. 6, bearing, bearing of turbine flowmeter will typically have three classes of tungsten carbide, ptfe, carbon graphite material. Natural gas metering instrument bearing should choose tungsten carbide material. Above is a selection of main aspects to consider. Because of the turbine flowmeter type specification is various, especially the different factory product quality have difference, should try to collect the manufacturer and model selection of the products, the relevant technical standards such as data comparing repeatedly investigation before deciding. Second, use and maintenance to guarantee the normal work of the gas turbine meter long, must check the running status of the flowmeter, maintenance work, find problems in a timely manner to eliminate. 1, the turbine flowmeter meter coefficient setting before put into operation, carefully check, determine the flow meter wiring and correct, grounding good rear can either. 2, regular cleaning of flowmeter, check and after school. Has lubricating oil or cleaning fluid into the mouth of the flowmeter, should according to the requirement of the specifications into lubricating oil or cleaning fluid on a regular basis, in order to maintain the impeller good running. 3, the condition of monitoring display instrument, estimates the meter reading, with exception to check in a timely manner. 4, keep clear of the filter. Filter the impurities clogging may be from the entrance and exit the increase of the differential pressure gauge readings to determine, blockage promptly eliminate, otherwise, can seriously reduce the traffic. 5, trade settlement measurement for large flow, in order to guarantee the accuracy of the flow meter, flow meter should be check regularly. Field should be equipped with online calibration equipment, or are equipped with portable calibration device, although larger one-time investment, but in the long run economic interests is worth it. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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