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The circulating water system not only absorbs the suspended matter in the air during cooling, but also produces particulate impurities in the system itself. Including system corrosion products, mineral deposits (eg, iron and hardness salts, etc.), microbial growth, organic aggregates, dissolved and undissolved impurities leaking from the heat exchanger process surfaces, etc. increase system nutrition and accelerate bacterial growth , Accelerate the corrosion and the formation of corrosion products. When impurities and fouling minerals precipitate together, they increase fouling rates and fouling thicknesses. These fouled membranes reduce heat exchange efficiency, reduce the water flow rate on the surface of the heat exchanger, and promote corrosion under fouling resulting in more contamination. Slower flow rates allow more impurities to precipitate, amplifying the problem and further reducing efficiency. Microbes in the cooling water, especially those that produce slime, deposit on the metal surface (not just the microorganisms themselves but also the water Of suspended solids), will cause corrosion under the scale. At the same time, some of the microbial metabolic processes are also involved in the electrochemical process, to promote corrosion. As a result, extremely small suspended solids can be removed effectively to reduce the causes of system corrosion, thereby reducing corrosion rates, extending equipment life and erratic shutdowns due to corrosion. Because the circulating water is full of dissolved oxygen, the appropriate temperature and nutrient-rich conditions, it is suitable for microbial growth and reproduction, if not promptly control the water quality will lead to deterioration, smelly, black, a large number of cooling tower adhesion or clogging deposition, cooling Cooling effect dropped significantly, equipment corrosion worse. Therefore, circulating water treatment must control the propagation of microorganisms. Microorganisms in circulating cooling water come from two aspects. First, the cooling tower in the water evaporation process requires the introduction of a large amount of air, microorganisms also with the air into the cooling water, the second is the cooling water system more or less there will be microorganisms, these microorganisms also added water into the cooling water System。
Case Automatic dosing device
说明: 采用合理的水处理工艺,配合水的深度处理,处理水可达到GB5084-1992、CECS61-94中水回收用水标准等,可以长时间循环使用,节约大量水资源。水处理(water treatment )对水源水或不符合用水水质要求的水,采用物理、化学、生物等方法改善水质的过程。常用的污水处理技术有生物化学法,如活化污泥法(Activated Sludge Process),生物结层法(Fixed Biofilm Processes),混合生物法(Combined Biological Processes)等;物理化学法,如粒质过滤法(Granular Media Filtration),活化炭吸附法(Activated Carbon Adsorption),化学沉淀法(Chemical Precipitation),膜滤/析法(Membrane Processes)等;自然处理法,如稳定塘法(Stabilization Ponds),氧化沟法 (Aerated or Facultative Lagoons),人工湿地法(Constructed Wetlands),化学色可赛思树脂处理法.纳滤膜分离原理纳滤膜又称为超低压反渗透膜,日本学者大谷敏郎曾对纳滤膜的分离原理进行了具体的定义:操作压力≤1.50mPa,截留分子量200~1000,NaCl的截留率≤90%的膜可以认为是纳滤膜。纳滤膜分离技术已经从反渗透技术中分离出来,成为介于超滤和反渗透技术之间的独立的分离技术,己经广泛应用于海水淡化、超纯水制造、食品工业、环境保护等诸多领域,成为水处理技术中的一个重要的分支。纳滤技术原理溶解、扩散原理:渗透物溶解在膜中,并沿着它的推动力梯度扩散传递,在纳滤膜的表面形成物相之间的化学平衡,传递的形式是:能量=浓度o淌度o推动力,使得一种物质通过膜的时候必须克服渗透压力。电效应:纳滤膜与电解质离子间...
说明: 污水处理一般来说包含以下三级处理:一级处理是它通过机械处理,如格栅、沉淀或气浮,去除污水中所含的石块、砂石和脂肪、铁离子、锰离子、油脂等。二级处理是生物处理,污水中的污染物在微生物的作用下被降解和转化为污泥。三级处理是污水的深度处理,它包括营养物的去除和通过加氯、紫外辐射或臭氧技术对污水进行消毒。可能根据处理的目标和水质的不同,有的污水处理过程并不是包含上述所有过程。纯净水处理工艺,视原水水质而定。如果原水是市政自来水,一般的流程是砂滤--活性炭过滤器--软化(可有可无)--保安过滤器--反渗透--紫外消毒--产水如果是一般的地表水,在进入上述流程之前要杀菌并添加絮凝剂。如果是井水,在砂滤后要加除铁锰过滤器。水进行循环净化。石英砂过滤是去除水中悬浮物最有效手段之一,是污水深度处理、污水回用和给水处理中重要的单元。其作用是将水中已经絮凝的污染物进一步去除,它通过滤料的截留、沉降和吸附作用,达到净水的目的。二.适用范围1.用于要求出水浊度≤5mg/L能符合饮用水质标准的工业用水、生活用水及市政给水系统;2.工业污水中的悬浮物、固体物的去除;3.可用作离子交换法软化、除盐系统中的预处理设备,对水质要求不高的工业给水的粗过滤设备;以及用在游泳池循环处理系统、冷却循环水净化系统等。
说明: 水处理包括:污水处理和饮用水处理两种,有些地方还把污水处理再分为两种,即污水处理和中水回用两种。经常用到的水处理药剂有:聚合氯化铝、聚合氯化铝铁、碱式氯化铝,聚丙烯酰胺,活性炭及各种滤料等。水处理的效果可以通过水质标准衡量。为达到成品水(生活用水、生产用水或可排放废水)的水质要求而对原料水(原水)的加工过程。加工原水为生活或工业的用水时,称为给水处理;加工废水时,则称废水处理。废水处理的目的是为废水的排放(排入水体或土地)或再次使用(见废水处置、废水再用)。在循环用水系统以及水的再生处理中,原水是废水,成品水是用水,加工过程兼具给水处理和废水处理的性质。水处理还包括对处理过程中所产生的废水和污泥的处理及最终处置(见污泥处理和处置),有时还有废气的处理和排放问题。水的处理方法可以概括为三种方式:①最常用的是通过去除原水中部分或全部杂质来获得所需要的水质;②通过在原水中添加新的成分,通过物理或化学反应后来获得所需要的水质;③对原水的加工不涉及去除杂质或添加新成分的问题。水中杂质和处理方法 水中杂质包括挟带的粗大物质、悬浮物、胶体和溶解物。粗大的物质如河中漂浮的水草、垃圾、大型水生物、废水中的砂砾以及大块污物等。给水工程中,粗大杂质由取水构筑物的设施去除,不列入水处理的范围。废水处理中,去除粗大的杂质一般属于水的预处理部分。悬浮物和胶体包括泥沙、藻类、细菌、病毒以及水中原有的和在水处理过程中所产生的不溶解物质等。溶解物有无机盐类、有机化合物和气体。去除水中杂质的处理方法很多,主要方法的适用范围可以大致按杂质的粒度来划分(图1)。由于原水所含的杂质和成品水可允许的杂质在种类和浓度上差别很大,水处理过程差别也很大。就生活用水(或城镇公共给水)而论,取自高质量水源(井水或防护良好的给水专用水库)的原水,只需消毒即为成品水;取自一般河流或湖泊的原水,先要去除泥沙等致浊杂质,然后消毒;污染...
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Q & A: MORE >>
  • 1.Central air conditioning yellow water how to do?
    A:
    Central air-conditioning chilled water and condensate water are recycled water, the cycle will be adsorbed in the air of dust, foreign bodies, etc., water will generate microorganisms, so require regular replacement of water, if dirty very interested, or even to add special cleaning agent Cleaning; if condensation in the condenser more scale, will result in cooling effect of central air conditioning decreased, electricity consumption increased, so also regularly open the cleaning condenser. The way to do this is to change the frequency of cooling water and condensate and to clean the condenser……
  • 2.Circulating cooling water algae growth in a lot of how to deal with?
    A:
    Circulating water due to nutrient concentration, temperature and summer prolonged sunshine, bacteria and algae to create a rapid breeding conditions. Much like the mucilage secreted by bacteria, it allows dust and chemical buoys floating in the water to bond together to form slimy sediments. A biofouling sludge attaches to the heat transfer surfaces of the host condenser Heat transfer filler), in addition to causing corrosion under the scale, but also to reduce the flow of circulating water, reducing heat exchange efficiency, increase power consumption and host load, in severe cases will plug the pipeline……
  • 3.Cooler fouling can clean it?
    A:
    Can be cleaned. Cooler fouling is generally divided into two types of tube fouling and tube fouling, as circulating water generally use soft water, so fouling tube generally does not appear, unless your circulating water is not soft water, remove the detergent first Use soft water cycle. Most of the cooler scaling is outside the tube scaling, there are two reasons for its study, first, the circulating water pipe is too high, because the spray water is generally used groundwater that is hard water, so if the tube temperature is too high will make the spray water temperature Rise, the formation of scale in the pipe wall, the second is spray water itself with high Mg and other elements, especially in mountainous areas, the water is relatively hard……
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phone:400-854-0068
fax:0571-87243867
mailbox:hzyuexin8@163.com
Q Q:2637788248
Company Address: No.37 Gaoke Road, Guangzhou Tianhe Smart City
Address: Room 2302, Block C, Xizi International, Jianggan District, Hangzhou City, Zhejiang Province

About us
Guangzhou Yuexin Engineering Technology Co., Ltd. was established in 1992 01 month 04 days, is located in Guangzhou Tianhe wisdom of the city hi tech Road No. 37. The country has 23 branches and offices, is a set of circulating water treatment engineering (industrial, civil) air conditioning installation, electrical and mechanical equipment maintenance in one of the private Limited Guangdong. Company now has 218 employees, including 16 engineers, technical personnel 145 people, the country has more than 1500 fixed customers, involved in industries including electricity, automobile, food and beverage packaging, injection molding, hotel, large square, building, transportation and so on.        All along, Hangzhou is a brand of water treatment Guangdong Guangdong business development foundation, a Integrated Company to refrigeration equipment, refrigeration accessories retail and technical services for business development. For many years and some well-known enter...
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