木质家具企业喷漆过程专用长管呼吸器的开发研究

发布时间：2018-03-01 21:43

本文关键词： 喷漆过程长管呼吸器管路样机优化　出处：《华南理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：目前木质家具企业的喷漆工艺职业危害形势非常严峻，主要体现在作业场所三苯等有毒物质严重超标。由于传统的技术改造、通风净化以及个体防护措施不能起到十分有效的作用，本文基于木质家具企业喷漆工艺特点和职业危害，提出了喷漆过程专用长管呼吸器的开发研究。根据流体力学和人机工程学等理论知识进行初步设计，运用CFX模拟软件对初步设计方案进行数值模拟并优化初步方案。根据优化方案进行样机的制作，并通过试验进一步验证和改进。研究内容如下：（1）专用长管呼吸器的初步设计及理论计算。结合木质家具企业喷漆过程的工艺特点，运用流体力学和人机工程学等学科理论，提出喷漆过程专用长管呼吸器的开发，该呼吸器区别于传统长管呼吸器，在管路结构设计上充分考虑喷漆过程的工艺特点，在面罩设计上追求轻便舒适，而且具备输送风量可调节的特点。（2）基于CFX的数值模拟分析与优化。对初步设计方案中的管路设计和面罩设计进行三维建模，并在CFX的环境下对其进行模拟，分析不同的管路设计方案和面罩设计方案在一定的输入条件下的气流情况，，进而提出优化设计方案。（3）专用长管呼吸器样机的制作。根据优化方案进行呼吸器样机的制作，包括呼吸器管路优化设计和管材选用、面罩的制作以及风机参数和型号的确定，最后通过三通、弯头等连接管件以及其他固定支架将这些主要元件装配起来，并通过流量调节阀实现对送风量的控制。（4）专用长管呼吸器样机的试验及改进。从风机的风量风压输出性能、连续工作性能，管路气流分布的均匀性、送风量的合理性以及面罩气密性和佩戴的舒适性等方面，对呼吸器样机的整体性能进行评估，并分析存在的问题，找出优化改进的方法，形成最终方案，为专用长管呼吸器理论样机的工程应用奠定基础。
[Abstract]:At present, the occupational hazard situation of the painting process in wood furniture enterprises is very serious, mainly reflected in the fact that the toxic substances such as triphenyl in the workplace are seriously exceeding the standard. Because of the traditional technical transformation, Ventilation and purification and individual protection measures can not play a very effective role, this paper based on the wood furniture enterprises painting process characteristics and occupational hazards, In this paper, the development and research of long tube respirator for painting process are put forward. According to the theoretical knowledge of fluid mechanics and ergonomics, the preliminary design is carried out. The preliminary design scheme is simulated and optimized by using CFX simulation software. The prototype is made according to the optimization scheme, and further verified and improved by experiment. The research contents are as follows:. 1) the preliminary design and theoretical calculation of special long tube respirator. According to the technological characteristics of painting process in wooden furniture enterprises, the development of long tube respirator for painting process is put forward by using the theories of fluid mechanics and ergonomics. This kind of respirator is different from the traditional long tube respirator. In the design of pipeline structure, the technological characteristics of painting process are fully taken into account, and the design of mask is light and comfortable, and it has the characteristics of adjustable conveying air volume. 2) numerical simulation analysis and optimization based on CFX. The pipe design and mask design in the preliminary design scheme are modeled and simulated under the environment of CFX. The airflow situation of different pipeline design schemes and mask design schemes under certain input conditions is analyzed, and the optimal design scheme is put forward. Making of a prototype of a special long tube respirator. According to the optimized scheme, the prototype of the respirator is made, including the optimal design of the pipe line of the respirator and the selection of the pipe material, the manufacture of the mask, the determination of the parameters and the model of the fan, and finally through the three links, Connecting fittings such as elbows and other fixed supports assemble these main components and control the air supply through flow regulating valves. Test and improvement of the prototype of special long tube respirator. From the aspects of air pressure output performance, continuous working performance, air distribution uniformity of pipe, rationality of air supply volume, air tightness and comfort of mask, etc., the air pressure output performance of the fan, the continuous working performance, the air distribution uniformity of the pipe, the air tightness of the mask and the comfort of the mask, etc. The whole performance of the respirator prototype is evaluated, the existing problems are analyzed, the method of optimization and improvement is found, and the final scheme is formed, which lays a foundation for the engineering application of the theoretical prototype of the special long tube respirator.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TS664.05;X965

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