精梳分区空调空气幕带隔断设计研究

发布时间：2018-03-14 07:42

本文选题：精梳分区空调　切入点：低速厚气流　出处：《中原工学院》2017年硕士论文　论文类型：学位论文

【摘要】：社会对纺织品的需求伴随着社会的发展不断扩大,促使纺织工业在我国实体经济体系中占的份额越来越大,其作为我国实体经济体系中的传统支柱行业,在我国对外经济竞争中占无可替代的地位。纺织工业的发展面临着激烈的竞争,不仅要面对国际市场的压力,而且还要在产品质量上有质的突破,以满足目前消费者对纺织品的高品质需求。保证纺织品品质的主要因素就是车间的内部环境,主要针对车间的温湿度,但是车间内不同工艺又有不同的温湿度要求,所以在纺织品生产中满足对不同车间的温湿度参数是企业管理的重中之重,从而使产品质量得以保证。在保证车间原有的气流组织不变的情况下,仅在车间走道增加空气幕带,采用数值模拟的方式进行计算,且产生的数据周期短、效果明显等,从而使数值模拟的方式得到更广泛的使用。本课题是在精梳和并粗车间内部走道上增设空气幕带,采用Airpak软件对精梳和并粗车间内部的气流组织进行数值模拟研究,湍流流动模型为k-ε两方程,得出车间的温湿度场和速度场云图。为了使空气幕带的隔断效果更佳,本文采用的方法是控制变量法。根据经验公式得出的车间空气幕送风临界风速与模拟得出的最优空气幕风速相比,其两者的差值在范围之内。以模拟方法得出的空气幕最优送风风速为前提,空气幕带宽分别取0.2 m、0.25 m、0.3 m三种方案,数值模拟后,对车间内部的温湿度场进行分析。针对纺织厂精梳车间和相邻并粗车间需要不同的相对湿度要求,实行实物隔断影响车间环境及半成品运输的情况。本课题采用低速厚气流空气幕带对工序之间进行分割,实现车间不同区域的湿度分区空调。通过数值模拟和经验公式计算分析,检验低速厚气流空气幕带对精梳和并条车间相对湿度横向分割效果。结果表明在空气幕带喷口宽度为0.04 m、列宽为0.3 m、风速为5 m/s时,车间内部区域相对湿度横向分层明显,车间内部相对湿度值相对稳定,能较好地满足工艺生产要求。
[Abstract]:The social demand for textiles with the growing development of the society, the textile industry in China's real economic system in an increasingly large share of the traditional pillar industry in China's real economy system, occupies the irreplaceable in China's foreign economic role in the competition. The development of the textile industry is facing fierce competition and not only to face the pressure of the international market, but also a breakthrough in the quality of products, to meet the current consumer demand for high quality textiles. The main factors to ensure the quality of textile workshop is the internal environment, mainly according to the temperature and humidity in the workshop, but the workshop different technology and different humidity requirements and so on the production of textiles to meet the parameters of temperature and humidity in different shop is the priority among priorities of the enterprise management, so that the product quality can be guaranteed. In order to ensure the original workshop air The organization remains unchanged, only the increase of air curtain with workshop walkways, using numerical simulation method to calculate, and the data generated by a short cycle, obvious effect, so that the numerical simulation method to be more widely used. This topic is the air curtain tape is arranged in combing and coarse and workshop on the walkway, the Airpak software to simulate and combing and roving workshop internal air flow, turbulent flow model for the k- two equation, the temperature field and velocity field nephogram workshop. In order to make the air curtain with the partition effect is better, this paper adopted the method of control variable method. According to the optimal air curtain velocity compared to the air of workplace scene experience formula of critical wind speed and wind simulation results, the difference between the two is in range. The optimal air curtain in simulations of the air velocity is the premise of the air curtain were taken 0 bandwidth .2 m, 0.25 m, 0.3 m, three kinds of schemes, numerical simulation, analysis of temperature and humidity field on the inside of the workshop. For textile combing and adjacent and coarse workshop need different relative humidity requirements, the implementation of the physical partition effect of workshop environment and semi-finished products transportation. This paper adopts low thick airflow air curtain with the process between the segmentation of humidity air-conditioning plant in different regions of the partition. By numerical simulation and empirical formula calculation, test speed of air curtain with thick air relative humidity on the combing and drawing workshop horizontal segmentation effect. The results show that the air curtain with a width of 0.04 m, width 0.3 m, wind speed of 5 m/s, the internal area of the relative humidity in the workshop horizontal stratification, workshop relative humidity is relatively stable and can meet the production requirements.

【学位授予单位】：中原工学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU831

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