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螺旋板式换热器清洗

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下面换热器网的小编跟大家介绍螺旋板式换热器清洗。

1、螺旋板式换热器除油脱脂

对油垢的化学清洗来说,首先是除油脱脂,油和脂在酸溶液中与水是不互相溶的,而在碱溶液中则可互溶。于是,碱性清洗剂所需材料选择是关键。

2、螺旋板式换热器络合酸洗

在经过碱清洗之后,由于设备为卷曲流向,死角较多,同时在折弯处有氧化物垢,有机物沉积硬垢,钙、镁离子生成的碳酸盐垢,因此必须进行络合除垢清洗。分享来自凌云换热器。

采用氨基磺酸为主剂、柠檬酸、EDTA为主剂,并加入0.25%的Lan—826,加入0.3%的表面活性剂,温度控制在50—55℃,最高不超过60℃,循环浸泡5h,根据酸浓度的检测,视其是否到清洗终点,然后进行水冲洗。

当水冲洗后,应进行出常规的钝化处理,采用1.5%的磷酸三钠,0.1%的NaOH,钝化液温度控制80—90℃,时间16h,最后钝化液放掉,水冲洗干净即可投入运行。

以上就是换热器网的小编为大家介绍螺旋板式换热器清洗,广大朋友们有需要换热器,欢迎来电咨询购买。质量保证,服务一流!

1, oil removal

Chemical cleaning the oil dirt, first of all is in addition to skim oil, oil and grease in acid solution and water is not mutually soluble, and in alkaline solution is miscible. Therefore, the choice of the material for the alkaline cleaning agent is the key.

The choice of alkaline cleaning agent: the use of Bm - 608 alkaline cleaning agent, the role of oil dispersion.

Alkaline cleaning process: the use of recycling, immersion, recycling and then soak the way, while the import and export can be repeatedly exchange.

The temperature control of alkali cleaning agent: in the process of alkali cleaning is mainly to run the temperature of the control, the temperature increases, the ability to emulsification and dispersion of the infiltration rate, the cleaning time is shortened. During the whole cleaning process, the temperature should be controlled at 80-90.

2.

After alkali cleaning, because the equipment for the curl flow, larger angles, also at the bending point have oxide scale, organic matter deposited hard scale, calcium and magnesium ions generated carbonate scale. Therefore, it is necessary to complexation cleaning. Share from Lingyun heat exchanger.

Amino sulfonic acid, citric acid and EDTA were used as the main agents, and 0.25% Lan - 826, 0.3% of the surface active agent, temperature control in 55 - 60, the highest not more than 50, the cycle of 5h, according to the acid concentration of the test, depending on whether to clean the end, and then rinse.

3, passivation treatment

When the water after washing should be carried out conventional passivation treatment, with 1.5% trisodium phosphate, 0.1% NaOH and passivation liquid temperature control 80 - 90 DEG C, time is 16h, the passivation solution out of the bathtub, water washing clean and can be put into operation.

Above is for heat exchanger network Xiaobian introduce spiral plate heat exchanger cleaning, the majority of my friends need heat exchanger, welcome to inquire purchase. Quality assurance, service class!