Coal slurry flow metering said value fluctuation larger processing method

Abstract: coal slurry flow metering represent the volatility of the larger values treatment information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. In practice, the electromagnetic flowmeter in the Texaco coal water slurry, the application of process related technical personnel in the selection and application there are usually some misunderstanding on the 7 [8]. Will now be summarized as follows. (1) coal slurry abrasion is large, so the use of wear-resisting. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a coal slurry flow metering said value, the article details the fluctuation of the larger processing method. In practice, the electromagnetic flowmeter in the Texaco coal water slurry, the application of process related technical personnel in the selection and application there are usually some misunderstanding on the 7 [8]. Will now be summarized as follows. ①“ Coal slurry abrasion is large, so the wear resistance of ETFE lining & throughout; Point of view is not accurate, ETFE mainly solved the problem with metal attachment. Although ETFE materials cheaper, but its current treatment technology is complex, use it to make the lining, the cost is higher than that of PFA, and no evidence of characterization of ETFE abrasion resistance is better than that of PTFE. Shanghai will ty sensor, produced by using hard rubber lining, effective use of three years, at the scene found no have significant wear and tear. ②“ Electrodes with low noise, small ripple so & throughout; The point is not accurate. The shape of the electrode is related to the size of noise. As the original import flowmeter electrode scaling phenomenon in some coal chemical industry enterprise, often need to tear open come down to the flowmeter with phase electrode of sand paper burnish, and Shanghai will adopt the clean electrode ( The pointed electrode) , and effectively solve the problem of scale formation. Actual application shows that while using the cleaning electrode flowmeter stationarity than the use of spherical electrode is a bit poor, but also did not appear abnormal fluctuations. So, we think that, in dealing with coal paddle flow abnormal fluctuations in output, low noise electrode technology is not critical. ③“ The original import flowmeter installation requirements is low, & lsquo; Before the 2 d after 5 d & rsquo; Line & throughout; The point is not accurate. Calibration in the laboratory, the straight pipe is longer ( Up to 10 d) ； In the application, general & other; Before 5 d after 3 d & throughout; Enough, this is not only applicable to import flow meter. If reducing, straight pipe requirements can be further reduced. In addition, the present stage of coal slurry flow meter, basic didn't vote for closed loop control, is not very tall to the requirement of accuracy, the key is to ensure effective safety chain, in order to avoid abnormal fluctuations caused by vehicle. ④“ The original import flowmeter flow velocity of flow is small, the influence of 0. The flow rate of the 3 m/s & throughout; The point is not accurate. This is very misleading. Practical experience shows that when the velocity is low, especially when the flow velocity is less than 0. 5 m/s, slurry flow meter is easy to volatility. Therefore, this view is not accurate. ⑤“ Simply reducing & throughout; The point is not accurate. We have modeled on Shanghai will ty reducing solution to reducing pipe, install a small diameter flowmeter, the actual use effect is less used in this paper, the proposed scheme. On the one hand, because of pipeline renovation, high pressure flange as well as the level of pressure vessel welding, low comprehensive cost nor; Reducing in the line on the other hand, small length will be far greater than reducing on flowmeter, cause the loss of pressure increase, coupled with the converter does not replace, a lot of unpredictable results. ⑥“ Because the original import flowmeter performance, so the risk small & throughout; The point is not accurate. Performance and good performance are the two concepts, the two did not cause and effect. Due to historical reasons, the original import flowmeter market share is higher, good performance even more, but have poor performance. Once the fluctuations caused by jump car, loss is very big. According to incomplete statistics, because of the coal slurry flow fluctuation caused by jump car, 200000 t/a methanol production line a loss of about 300000 yuan; Methanol production line, 600000 t miss jumps off a loss of about 800000 yuan. This is also one of the reasons for the high quality coal slurry flow meter prices. We used to use two brands imported flowmeter, eight months is worst, also has appeared a year bad three sets of situation has happened. Shanghai will provide solutions, considering the special working condition of Texaco gasifier field, have done many targeted design, has safe and reliable to use more than three years. Above all, we believe that the appropriate choice is good choice zui application. In the Texaco gasifier coal slurry flow measurement applications, because the flow pattern of fluid flow field parameters is more complex, the source of coal and coal slurry formula are also different. Therefore, the application effect of different coal slurry flow meter difference is big. Same kind of flowmeter, prone to volatility in some situations, but in other cases the application effect is good, this is the selected coal slurry flow meter wide working range is not enough. Vehicle to minimize or avoid the mistake, and ensure the effective state of the safety chain, should choose the working range is wider coal slurry flow meter, and the choice is stable and fast slurry flow meter is meet the basic requirements process. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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