锅框岩CNG加气站工业循环水处理技术研究

发布时间：2018-02-03 12:53

本文关键词： 锅框岩 CNG加气站循环水水质处理药剂　出处：《西南石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：压缩天然气作为车用燃料具有安全经济、节能环保等特点。作为CNG汽车必要的基础设施,CNG加气站在全国范围得到快速发展。压缩机是加气站的核心,而对于压缩机的冷却是保障CNG质量和设备及人员安全的重要环节,也是提高生产效率和经济的效益的至关因素。为节约水资源,降低污水排放量,CNG加气站的压缩机冷却系统多采用循环水冷却方式。由于冷却水循环利用,导致冷却循环系统结垢、腐蚀严重,微生物、藻类大量滋生,降低设备使用寿命与工作效能。传统的水处理工艺存在设备投资高,处理效果差,水资源和药品耗量多,且排入生态水体的药品中的某些成分可生化降解系数较低,某些成分又是水体营养元素,可引起水体富营养化等问题。因此需要制定新的水处理方案,在达到水质处理要求的同时降低投资、资源消耗和环境污染。主要研究工作如下：(1)跟踪和检索国内外CNG加气站循环水处理技术及相关领域最新进展对国内外的相关文献进行调研,比较、归纳相关文献的研究成果。(2)对锅框岩CNG加气站循环冷却水使用过程中出现的结垢、腐蚀和菌藻滋生等问题进行分析并确定形成原因及产物组成。(3)根据分析结果,对比多种循环水水质处理方案,优选化学水质稳定药剂法对循环冷却水进行处理。通过实验确定药剂的最佳配方和用量,研制出新型CNG加气站专用阻垢缓蚀剂、杀菌灭藻剂A和杀菌灭藻剂B三类药剂。(4)分析试验数据,有针对性的进行冷却水系统阻垢缓蚀药剂静态阻垢实验、设备缓蚀实验、杀菌灭藻实验和微生物抗药性实验,确定最佳药剂以及投放浓度和控制浓缩倍数。通过观察药剂用量、结垢速率、碳钢腐蚀速率、不锈钢腐蚀速率、微生物藻类处理效果,比较了各种药剂的使用效果,提出锅框岩CNG加气站水质处理方案。(5)持续使用药剂,从水处理剂水质处理效果、水资源和药品用量、污水对环境影响等方面完成药剂现场使用效能评价与经济评价。(6)编制加药方案和日常操作规程,并将此项技术在行业进行普及推广。
[Abstract]:As a vehicle fuel, compressed natural gas has the characteristics of safety, economy, energy saving and environmental protection. As a necessary infrastructure for CNG vehicles, CNG filling station has been developed rapidly throughout the country. The compressor is the core of the filling station. The cooling of compressor is an important link to ensure the quality of CNG and the safety of equipment and personnel. It is also the most important factor to improve the production efficiency and economic efficiency. In order to save water resources and reduce sewage discharge. The cooling system of compressor in CNG gas station mostly adopts the way of circulating water cooling. As a result of circulating utilization of cooling water, the cooling cycle system is fouled, corroded seriously, microorganism and algae breed in large quantities. Reduce the service life and working efficiency of the equipment. The traditional water treatment process has the advantages of high equipment investment, poor treatment effect, high consumption of water resources and drugs. The biodegradable coefficient of some components in the drugs discharged into the ecological water body is low, and some components are nutrient elements in the water body, which can cause eutrophication of water body and so on. Therefore, a new water treatment scheme is needed. Reduce investment while meeting the requirement of water quality treatment. Resource consumption and environmental pollution. The main research work is as follows: 1) tracking and retrieving the domestic and foreign CNG gas station circulating water treatment technology and the latest progress in related fields to investigate and compare the relevant literature at home and abroad. Summing up the research results of relevant literature. 2) scaling occurred during the use of circulating cooling water in CNG gas station of boiler frame rock. Corrosion and algae breeding and other problems were analyzed to determine the causes of formation and product composition. (3) according to the results of the analysis, the water quality treatment schemes of various circulating water were compared. The circulating cooling water was treated by chemical water quality stabilization method and the optimum formulation and dosage of the reagent were determined through experiments. A new type of scale and corrosion inhibitor for CNG gas station was developed. The static scale inhibition experiment of scale and corrosion inhibitor of cooling water system and the corrosion inhibition experiment of equipment were carried out by analyzing test data of bactericidal algicide A and bactericidal algicide B. Bactericidal algicide test and microbial resistance test were used to determine the optimum dosage and concentration and control concentration. The dosage of the agent scale rate corrosion rate of carbon steel and corrosion rate of stainless steel were observed. The effect of microorganism algae treatment was compared, and the water quality treatment plan of CNG gas station of boiler frame rock was put forward. The water quality treatment effect of water treatment agent was obtained from the water treatment agent. Water resources, dosage of drugs, environmental impact of sewage, etc., completed the evaluation of field efficacy and economic evaluation of medicament. 6) compiling the scheme of adding drugs and daily operation rules, and popularizing and popularizing this technology in the industry.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U473.8;TQ085.4

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