Analysis of the Technical Level of Chemical Cleaning Agents

Chemical cleaning agent refers to the use of chemical methods and chemical agents to achieve the purpose of cleaning equipment. Chemical cleaning agent is a new technology, which plays an important role in industrial life. It is directly or indirectly in contact with corrosive chemicals, and some are flammable, explosive, toxic and harmful chemicals. It has the characteristics of diverse processes, high technical content, and complex operations. In foreign countries such as the United States, Japan, Singapore, Western Europe and other industrial developed countries, the development of industrial cleaning industry earlier, there is a high degree of specialization of chemical cleaning system. 1. Cycle cleaning Cycle cleaning is the use of two original parallel ash discharge pipeline loop, and cleaning pump station to form a circulation system, adding a certain concentration of pickling fluid, in the gray water pipeline circulation cleaning, and in the acidity down to a certain extent, constantly add acid. For a short distance of a single gray water pipeline, if conditions permit, a temporary pipeline can be laid to form a circulation loop for cleaning. The process needs to be carried out in a shutdown state, and the process is complicated and the cost is high. 2. Open-circuit cleaning can not have two ash pipes to form a loop, only a single ash pipe open-circuit cleaning. The method is to connect one end of the ash pipe with the cleaning device, continuously prepare a certain concentration of pickling solution in the mixing tank, and inject it into the ash pipe continuously or intermittently. This process needs to increase the cleaning equipment in the shutdown state, and the cost is high. 3. Non-stop chemical cleaning The process is to continuously inject a certain amount of acid under the condition that the ash pipe is normally transported without stopping, and at the same time inject a certain amount of ash pipe operation cleaning corrosion inhibitor and pipeline cleaning stripper to open circuit cleaning. The main function of cleaning additives is to promote the reaction of acid and ash scale in a certain concentration and flow rate of acid, while increasing the solubility of carbon dioxide in water, reducing the generation of air resistance, and ensuring the cleaning quality of the ash tube. The operation method is as follows: before cleaning, the required acid amount is estimated according to the total scale amount in the pipeline, and then the acid adding rate and the adding flow rate of the corrosion inhibitor and the pipeline stripping agent are calculated according to the flow rate of gray water and acid. During cleaning, the acidity shall be sampled every 30 min at the sampling point at the front end of the ash tube, and the acidity shall be strictly controlled by adjusting the flow rate of acid addition. In the later stage of cleaning, the end of the ash tube is sampled every 15 min to test the pH value. When the pH value reaches a certain value and remains unchanged for 30 min, the end of cleaning can be determined.

Basic principle of charged cleaning

Precision electronic equipment in the long-term continuous operation process, due to a variety of dust floating in the atmosphere, metal salts, oil and other comprehensive pollutants, through physical adsorption, particle gravity sedimentation deposited on the surface of precision electronic equipment, resulting in serious pollution of precision electronic equipment, so that the heat dissipation capacity of precision electronic equipment decreased, affecting its operation quality and reliability. These contaminants also create an additional "microcircuit effect" on the circuitry within the device, resulting in a "slow corrosion" effect that can cause poor contact in precision electronic equipment to varying degrees, Impedance reduction, leakage, short circuit, error code, bad board, etc. cause line energy loss, transmission signal weakening, transmission rate and quality instability and other soft failure rate increase. The raw material of the charged cleaning agent is determined according to the nature of the pollutant, because the pollutant is divided into: polar water-soluble residue, non-polar water-soluble residue, non-polar water-soluble residue. The use of polar and non-polar solvents, polar water-soluble, non-polar water-soluble, non-polar water-soluble pollutants can be well dissolved, so that the cleaning to achieve satisfactory results. When the equipment is polluted and cannot operate normally and cannot be powered off, the application of seat belt electric cleaning can eliminate or weaken static electricity, improve insulation performance, remove harmful substances, effectively improve the contact effect of electrical contacts, avoid failure, and make the equipment in the best operation State to extend the service life of the equipment.

Current Situation and Prospect of Charged Cleaning Technology

（1）带电清洗剂的意义        随着经济的高速发展，各种高科技产品越来越多的进入到各行各业中，全日制和全天候的自动控制系统和电力设备，它们 24 小时连续不断的采集、识别、调制、转化、传递和处理着各种形态及各种类别的信息，围绕着被控对象服务。        因此，对如何采用更为先进、科学、经济的手段维护设备提出了更高和更迫切的需求，这也给带电清洗技术的发展带来了一个新的契机。        设备在长期连续运行过程中，各种灰尘、湿气、油烟、酸气、盐份、金属尘埃、静电及各种带电粒子通过物理吸附作用,微粒重力沉积于设备表面,而造成设备的严重污染,使设备的散热能力下降,影响其运行质量和运行可靠性,这些污染物还对设备内的电路形成附加的"微电路效应"导致"缓腐蚀"作用,不同程度地引起设备的接触不良,阻抗降低漏电、短路、误码、坏板等造成线路能量损耗、信号减弱、误动作、速率和质量的不稳定等软性故障的升高。而在室外长时间工作的高压电力设备，还受到各种气候的影响，雷电、霜、雪、雨、及风等对设备一旦造成闪络，损失是难以想象的，因此，对长期连续运行的设备定期带电清洗维护有利于设备安全可靠的正常运转。        传统清扫多是借助于力的作用（如抹布擦、刷子刷、皮老虎吹、有时使用酒精、丙酮等化学清洁剂作为辅助清洁），使脏物搬家，而具有腐蚀性的污染物和带电粒子的积累，盐份、油污等很容易残留在设备表面。而带电清洗所用清洗剂本身具有很强的去污力、分解力和相应的机械力，以化学和物理的共同作用包围、分解、剥离各种污染物，从而达到深度清洗的效果。因此带电清洗是比传统清扫更为先进、科学、经济的维护手段，         带电清洗所用清洗材料具有高绝缘（耐压 220KV）、去污力强、无腐蚀、不燃烧、无闪点、对环境无污染等优点，应用带电清洗剂维护技术具有以下重要意义： 1、清除各种电力通信设备电路和相关机械部位上形成的“累积静电”，从而 消除由此引发的软性故障（不明原因的数据丢失、死机、运行异常等）；消除造 成敏感器件击穿的根源，从而降低设备的故障率，并可减缓二次污染。 2、消除综合污染物在通信设备系统上形成的“微电路”，恢复设备的正常散热能力，避免综合污染对设备形成的“缓腐蚀”作用，延长设备的使用寿命。 3、提高设备的电气绝缘值，恢复电路板及元器件的正常表面阻抗，形成特殊保护作用，使设备处在最佳运行状态。 4、大大降低因停电维护设备而带来的经济损失。，增加企业的经济效益。 5、节约了维修时间，有效减少了维护工作量，提高了工作效率。 6、有效改善电触点的接触效果，避免故障，明显减少由此引发的硬性故障。 7、节能降耗、保护环境，减少能源需求和能源不足的矛盾，清洗剂不含氯氟化碳、哈龙等主要消耗大气层中的臭氧层的物质，是我国节约能源、保护环境的重要发展方向。          综上所述，对设备进行定期不停电清洗维护，是保证设备始终处于良好工作状态的重要环节，发展高科技产品，以高科技技术清洗维护工艺来解决这些难以解决的大难题，是带电清洗剂行业科技界的历史使命。

Progress in Research and Development of Cleaning Solvent

       目前在清洗行业广泛使用 CFC-113(三氯三氟乙烷)、1,1,1-三氯乙烷、四氯化碳等 ODS 物质作为清洗剂。这些 ODS 清洗剂严重破坏大气臭氧层,正在日益严重得影响着地球的环境和人类的生存质量,被列为禁止使用的产品。根据《关于消耗臭氧层物质的蒙特利尔议定书》要求,发达国家已于 1996 年停止生产和使用ODS 物质,发展中国家将于 2010 年完全淘汰 ODS 物质,并且发达国家不准进口用ODS 物质清洗的产品。因此,非 ODS 环保清洗剂成为国内外研究的热点。       随着环保清洗剂的发展,一些新的替代品被不断开发出来并有望在不同的清洗领域替代 CFC-113 和三氯乙烷使用。氢氟醚清洗剂(HFE)氢氟醚具有不可燃和不破坏臭氧层的特点,在很多领域可替 代 CFC-113 和 HCFC-141b(CH3Cl2CF) 。 美 国 3M 公 司 已 经 推 出HFE-7100(C4F9OCH3)、HFE-71DA、HFE-71DE 等一系列的氢氟醚清洗剂。这些清洗剂的 ODP(臭氧层破坏系数)值都为零,具有较低的 GWP 值(温室效应系数)。HFE-7100 的相对密度大,表面张力低,润湿性好,渗透能力强,适合汽相漂洗和汽相快速干燥,但其具有低毒性,美国工业卫生协会确定其工作环境暴露上限(WEEL)为750mg/L。 溴代烃类清洗剂        美国环境保护署(EPA)2003 年6 月发布公告,将nPB(1-溴丙烷,C3H7Br)列为ODS的:“适当条件下可以接受的替换剂”。nPB 具有较低的 ODP 值,其溶解能力是传统氯碳溶剂的 4 倍,所以其消耗量大大降低,减少了废气物的数量,从而减轻了环境破坏的压力。由于 nPB 的化学稳定性较差,因此在使用时必须添加稳定剂或者抑制剂。为达到最佳的清洗效果,nPB 在多数情况下需与其它的清洗溶剂混合使用。美国Petroferm 公司生产的nPB 产品,商品名为LENIUMGS,是正溴丙烷与异丙醇组成的共沸物,用于清洗电子产品,也用于清洗要求高可靠性的航天及核工业用的继电器。如由 50%(W%)左右的 nPB 和 50%(W%)左右的四氟乙烷(作为推进剂)所构成的喷雾清洗剂适合于电路板和接线盒清洗。nPB 作为 ODS 清洗剂的替代品活跃于市场,其溶解能力类似于三氯乙烷,但却有着极低的 ODP 值,特别在价格上有着较大的优势。这类清洗剂的使用已获得美国环境保护署的批准,已广泛应用于电子工业、航空工业和汽车制造工业等领域。 碳氟氢清洗剂(HFC) (1)1,1,1,3,3-五氟丙烷(HFC-245fa)。HFC-245fa 可用于清洗印刷线路板、磁头、继电器、 各种通信医疗设备和珠宝等。 HFC-245fa 的物理性质类似于HCFC-141b(CH3Cl2CF),匹配性优于 HCFC-141b,具有不破坏臭氧层、不易燃等特点。HFC-245fa 和醇类等的混合物可增加其清洗能力。HFC-245fa 与 2-氯丙烷和二氯乙烯形成的类似于共沸物的混合物,是 CFCs 和 HCFCs 清洗剂的理想替代品。 (2)1,1,1,3,3-五氟丁烷(HFC-365mfc)。在精密清洗领域,HFC-365mfc 可用于替代CFC-113 和 HCFC-141b。HFC-365mfc 的突出优点是 ODP 值为零;它的缺点是具有一定的可燃性,但是当它和少量 HFC-245fc 等物质混合后,可形成无闪点、不可燃的混合物。 (3)1,1,1,2,3,4,4,5,5,5-十氟戊烷(HFC-4310mee)。HFC-4310mee 具有不破坏臭氧层、表面张力低、润湿渗透性好、化学性质稳定和不燃等优点,可替代 CFC-113 和 HCFCs 用作清洗溶剂、除焊剂和传热介质等。HFC-4310mee 与大多数酯类、酮类、醚类、醇类(如甲醇、乙醇、异丙醇)完全混溶。与低级烷烃如己烷、庚烷也很易相溶。如 HFC-4310mee 与反-1,2-二氯乙烯、顺-1,2-二氯乙烯或 1,1-二氯乙烷所形成的共沸混合物或类似于共沸物的混合物可用作清洗剂。目前 HFC 清洗剂已有系列产品问世。如美国杜邦公司生产的 HFC-4310 系列清洗剂,其商品名为VERTREL,可用于电子、航空、光盘驱动器、军用、医疗等领域的清洗。 绿色化学是经济和社会可持发展战略的重要组成部分,也是 21 世纪清洗技术和清洗剂发展的重要趋势。随着经济和社会的发展,人们将更加重视环境保护,绿 色化学也必将得到空前的发展。在清洗行业,随着淘汰 ODS 类物质的发展,将有越来越多的环保型清洗剂问世,绿色清洗技术也将更加成熟,应用领域也将更加广阔。

Research and Development Progress of Ultrasonic Cleaning Technology

一、    超声波清洗技术研发进展分析 （1）技术发展历程 超声波清洗是利用超声波能进行清洗的一项清洗技术,最早出现于 20 世纪 30 年代。对其进行广泛的研究和应用已有几十年的历史。近年来,对超声波清洗的理论研究也更加深入和透彻,针对超声波清洗的机理研究不断细化,并出现了一些针对空化声场的计算机模拟方法。超声波清洗的核心部件)))超声换能器在理论研究上也更为深入,完善了换能器在各种负载下的特性研究。随着超声波清洗理论和技术的进步与完善,其应用日益扩大,超声波清洗目前已广泛地用于工业的各个方面。在我国,随着工业的快速发展,尤其是制造业的发展以及对生产过程的环保要求力度的加大,超声波清洗的应用也有新的特点出现。 （2）清洗设备研发进展 在线清洗(Clean-in-place，简称 CIP)与在线灭菌(sterilization-in-place，简称 SIP) 即指系统或设备在原安装位置不做拆卸及移动条件下的清洁与灭菌工作。与手工清洗相比，在线清洗更简单，效率更高，节省劳动力，从而降低成本。目前，在线清洗技术在制药和生物技术工艺中已经得到广泛的应用。 全自动 CIP 清洗技术应运而生 在线清洗技术是一种理想的设备及管道清洗方法，包括设备、管道、操作流程、清洗剂配方、有自动控制和监管要求的一整套技术系统。能在不拆卸、不挪动设备、管线的情况下，洗净污垢。 随着制药工业设备要求的提高和科学技术的发展，全自动 CIP 清洗系统应运而生。全自动 CIP 清洗系统是由碱罐、酸罐、热水罐、各种管道和气动阀门、压力变送器、电导率仪、铂热电阻及控制系统等构成，其利用离心泵输送清洗液在物料管道和设备内进行强制循环，达到清洗目的。因此，不需要对管道设备解体， 可以提高设备利用率，减轻工人劳动强度。 目前，我国的在线清洗技术还比较薄弱，有些制药设备只具有一个或者几个用于清洗的喷淋头结构，有些零部件还需要拆洗。这样的 CIP 技术显然不能给药品生产一个安全的环境，残留的药杂质将会和新药进行交叉性污染，远远达不到GMP 要求。因此，加强在线清洗技术的研究，研发优质在线清洗设备，优化在线清洗工艺流程迫在眉睫，也是我国制药企业及制药机械装备行业需要关注的一个重点。 超声波清洗设备高速高质量实现自动化 超声波清洗技术在制药工业中应用较广。被誉为现代清洗手段的超声波清洗是利用超声波在液体介质中的空化效应，对液体介质所到之处拖把体内外表面进行清洗，具有优质、省力、等显著特点，在西方发达工业国家已得到了广泛应用， 取得了很大的经济效益。我国也开始逐步推广使用这种新技术。 超声波清洗设备采用超声波清洗的原理，可以达到物件全面洁净的清洗效果， 特别对深孔，盲孔，凹凸槽清洗是最理想的设备，不影响任何物件的材质及精度。与其它清洗相比，具有洗净率高、残留物少,清洗时间短,清洗效果好、节能的优 势，凡是能被液体浸到的被清洗件，超声对它都有清洗作用。

Development Status of Cleaning Agents in China in 2020

List of Common Standards for Cleaning Agents

Industrial cleaning agent composition Industrial cleaning agents can generally be divided into: ship cooler cleaning agent, deck cleaning agent, leather bright cleaning agent, aluminum alloy oil removal cleaning agent, carbon steel oil removal cleaning agent, mold cleaning agent, hardware wax removal cleaning agent, copper cleaning agent, optical cleaning agent, pigment oil removal cleaning agent, circuit board copper spot oxidation removal cleaning agent, iron plate rust removal cleaning agent, special cleaning agent for cleaning machine). Although there are many kinds, the chemical composition is similar, and the cleaning principle is basically the same. The main components are surfactants, corrosion inhibitors, chemical additives, preservatives, etc. It is worth noting that some manufacturers will add acidic chemical components in order to make the decontamination ability of the cleaning agent stronger. Therefore, for the cleaning agent containing acid, Xiaobian does not recommend direct human contact. However, with the requirements of environmental performance, some environmentally friendly cleaning agents have begun to sell well on the market. This kind of environmentally friendly preparations are technically improved on the basis of the original industrial preparations. Although the acidity is weakened, its decontamination effect is still Good, human skin can be directly contacted without causing corrosion to equipment, which meets the requirements of environmental protection and can be directly discharged. Figure 2: List of common standards for cleaning agents. Standard No. Standard Name Publishing Department Implementation Date GB/T25097-2010 Insulator charged cleaning agent National Quality Supervision Inspection General Directorate of Epidemic 2011-2-1 GB/T25097-2010 Insulator charged cleaning agent makes Guidelines for use National Quality Supervision Inspection General Directorate of Epidemic 2011-2-1 QB/T4314-2012 Alkaline cleaning for industrial equipment Agent the People's Republic of China countries Development and Reform Commission 2012-12-1 QB/T4313-2012 Acid cleaning for industrial equipment Lotion the People's Republic of China countries Development and Reform Commission 2012-12-1 CAS162-2008 Engine Lubrication Cleaning Agent National Quality Supervision Inspection General Directorate of Epidemic 2008-12-23 CAS161-2008 Throttle cleaner National Quality Supervision Inspection General Directorate of Epidemic 2008-12-23 CAS163-2008 Gasoline Engine EFI System Cleaning agent National Quality Supervision Inspection General Directorate of Epidemic 2008-12-23 JB/T10560-2006 Cleanliness and evaluation method of antirust oil and cleaning agent for rolling bearings Law Ministry of Machinery Industry 2006-10-1

What kind of antirust oil is good?

Still questioning Resbo's anti-rust oil? The competition for antirust oil is getting fiercer and fiercer, but the manufacturers of antirust oil are often spoiled by buyers. Among them, some users of antirust oil said that the long-term antirust oil of Ruisebo is not good, but the person in charge of the user of antirust oil still chooses Ruisebo RSB-601 long-term antirust oil. How about the quality of antirust oil brand? Look at the customer list. Corrosion is one of the main forms of fastener damage, which will cause great losses to automobiles, motorcycles and various vehicles and machinery. According to statistics, the direct economic loss caused by metal corrosion accounts for about 2% to 4% of the total national economic output value. In order to avoid corrosion and reduce losses, people have adopted various methods to protect metal fasteners with anti-rust oil, which is one of the most common protection methods at present. Guangdong Antirust Oil Threaded fasteners are diverse, from ordinary bolts, nuts, screws, to high strength, high performance, high precision, high value-added and non-standard special-shaped parts, their anti-rust packaging methods are basically the same. For the surface oxidation, phosphating, blackened threaded fasteners are mostly used surface coating, dipping anti-rust oil, plus plastic packaging. Guangdong long-term antirust oil This anti-rust oil is very popular Ruibao RSB-601 long-term anti-rust oil is based on low viscosity light lubricating oil, adding a variety of anti-rust agent, high-quality dilution solvent, antioxidant additives and other refined, in line with the Japanese JISK2246-80-NP8 standards and U.S. military MILG3503-63 standards, safety, environmental protection, no irritation to the skin. Mainly used for all kinds of carbon steel, cast iron, alloy steel, chromium stainless steel and other ferrous and non-ferrous metals long-term storage of rust. Features: 1. It has excellent resistance to heat and salt spray, and has excellent lubrication performance; after the solvent volatilizes, it leaves a very thin layer of oily anti-rust film on the metal surface. 2. The oil film formed has strong adhesion and will not harden, peel and crack; it can prevent or slow down the penetration of water vapor and oxygen in the atmosphere and the production of corrosive micro-batteries, and play a better role in rust prevention and protection. 24-hour customer service hotline: if you are interested in the above anti-rust oil or have questions, please click to contact the online customer service on the right side of our website-your considerate purchasing consultant.