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对于循环比高、因而药剂停留时间长的循环冷却水系统,在进行水处理管理控制时,除考虑要补充由排污引起的药剂消耗外,还必须考虑补充水处理药剂在一定温度、pH 条件和特定水介质中的降解,以及考虑由于大量悬浮物、沉积物和泥砂等对药剂的吸附所造成的药剂损耗。 相似文献
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自动监测系统在循环水场的应用 总被引:6,自引:1,他引:6
在循环水场安装智能模拟监测换热器,这种换热器利用冷却水旁路,对其传热面下的腐蚀,结垢和积污情况进行监测,其监测结果,为循环水工艺调整和水质配方的筛选提供了依据。 相似文献
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换热器是化工生产中至关重要的设备之一,对换热器的日常使用及维护情况及时进行分析,避免换热器发生泄漏,减少损失,十分必要。 相似文献
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《Journal of Adhesion Science and Technology》2013,27(1):117-123
Measurements of water drops beginning to slide down on a vertical Teflon plate and the detachment force of air bubbles of the same volume from the face surface of cylindrical Teflon segments (rods) of various diameters in water were made. Simultaneously, the radius of the contact plane between the air bubble and segment was measured at the moment of detachment, as well as the radius of the small air bubble contact plane which was left after disruption of the Teflon-large air bubble-water system. On the basis of the results obtained, the work of adhesion of water to a Teflon surface was determined using equations known from the literature as well as the equation derived in this paper. Agreement between the values of the work of adhesion calculated from these different equations was obtained. It was found that measurements of the air bubble detachment force from a solid surface may be useful for determination of the work of adhesion of a liquid to a solid surface, at least for a solid for which vapor adsorption may be neglected. 相似文献
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阐述了冷却水换热器结垢和腐蚀的原因,并对其危害进行了介绍;探讨了结垢和腐蚀的处理措施,为解决冷却水换热器结垢和腐蚀问题提供了借鉴和指导。 相似文献
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炼油过程中水冷器工艺物料的泄漏是导致循环水水质持续恶化的主要因素之一,如何及时快速找到漏点,对泄漏物料准确定位是确保循环水系统安全稳定运行的重中之重,也是循环水日常管理的重点所在。选用多级过滤的手段对被测样品进行了预处理,在排除干扰的基础上建立了一套快速定位技术。经过试验验证,该法可在72 h内准确查找出炼油循环水系统工艺物料泄漏点。 相似文献
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论述了炼厂第二循环水系统的水质及设备腐蚀状况,同时详细介绍了生物净化剂水处理技术在该系统的应用,从缓蚀阻垢、除油净化、黏泥剥离、菌藻控制等方面,为在泄漏情况下保证循环冷却水正常运行寻找到了一种很好的解决办法。 相似文献
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Objectives of this project were to evaluate benefits — over the short term — that might derive from control of the surface properties of materials used in energy transfer devices; and to identify preferred ranges of surface parameters that might be specified to minimize deposits of biological fouling known to deteriorate energy exchange efficiencies in seawater, brackish water, and freshwater systems. By modifying the surface chemistry and surface energy of test plates with very thin coatings (nontoxic) and examining the acquired films at various time intervals, the earliest events of biofouling caused by macromolecules and microbial organisms were defined. Overall, the results were remarkably similar for all systems tested in showing that deliberate modification of the initial material surface qualities can significantly reduce the retention of biofouling layers. 相似文献
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对硫酸循环冷却水系统结垢分析,处理试剂选取、化学清洗和运行,试剂的腐蚀监测分析等进行了阐述。选用JC-466缓蚀阻垢剂并与XF-990、XF-992杀菌灭藻剂配伍是适合木循环冷却水处理的优良配方。近一年来的生产表明,酸冷却器没有结垢,节水、节电效果明显。 相似文献