通风管道施工质量控制措施研究

发布人：http://www.sftfgd.com   发布时间：2018-09-18 14:12:58

随着社会经济的发展，人民物质生活水平的不断提高享受现代化设施设备的愿望不断加强，空调系统得到了越来越多的应用，空调通风管道系统的合理性，对提高整个社会的能源的有效利用率，减少能源的浪费，起着重要的作用。如何在保证既有建筑功能和居住环境质量的同时，又能兼顾到性和经济性，使改造工程得到用户的认可，更有利的促进改造。这就需要一种全新的评价方法，而不是传统的只考虑性或者经济性的单一评价，来体现改造的优越性。目前，随着通风工程施工工艺的不断提高，通风系统对风管制作和安装具有很高的要求，但是还是存在影响施工质量的问题存在。本文将就办公楼通风系统的安装施工质量控制展开探讨。

With the development of society and economy, people's desire to enjoy modern facilities and equipment has been strengthened. Air conditioning system has been used more and more. The rationality of air conditioning and ventilation duct system plays an important role in improving the effective utilization rate of energy and reducing the waste of energy. Use. How to ensure the existing building functions and living environment quality at the same time, but also to take into account the energy-saving and economic, so that energy-saving renovation project has been recognized by users, more conducive to promoting energy-saving renovation. This requires a new evaluation method, rather than the traditional single evaluation which only considers energy-saving or economic, to reflect the advantages of energy-saving transformation. At present, with the continuous improvement of ventilation engineering construction technology, the ventilation system has a high requirement for air duct production and installation, but there are still problems affecting the construction quality. This article will discuss the quality control of installation and construction of ventilation system in office buildings.

1.施工前准备工作

1. preparation before construction

净化风管的质量直接关系到系统是否达到设计参数和正常使用要求，其制作一般采用工厂集中制作和现场制作两种方式。无论采用哪种制作方式，都要保证制作场地的洁净和封闭，较好选用水泥地面或地面铺设金属钢板，其面积不得小于100m?，且满足采光和照明条件，制作完成的净化风管要进行堆放，并进行看管;如果选用现场预制时，要保证预制完成后的风管能够及时运施工现场，尽量减少风管搬运的距离，这样可以避免运输过程中对风管的污染。

The quality of the purifying duct is directly related to whether the system meets the design parameters and normal operation requirements. It is usually made in two ways: factory centralized production and on-site production. No matter which method of production is adopted, the cleanliness and closure of the site should be guaranteed. It is better to use cement ground or ground to lay metal plate, its area must not be less than 100m?, and to meet the lighting and lighting conditions, the purified air duct should be stacked and cared for; if prefabricated site is selected, it should be guaranteed in advance. The finished duct can be transported to the construction site in time to minimize the distance of the duct, which can avoid the pollution of the duct in the process of transportation.

2.风管的设计安装

2. design and installation of duct

风管板厚的选择

Selection of duct thickness

板厚对风管的质量影响较大，为了保证风管的重量，要选用较小板厚的风管，但是选用的过程还是和风管的尺寸和压力级别有关。在我国，大部分的金属风管采用的是热镀锌钢板和钢带，他的基体是冷轧低碳结构钢板，其抗拉强度>270 ，延伸率>24%，厚度允许差值为d=0.6-1.2mm范围内(±0.07-0.13mm)，因为我国的工业技术和检测技术与国外具有一定差距，国内采用的风管板厚要比国外标准大20%，但随着我国经济技术的不断发展，许多国内厂商已经有能力生产厚度均匀的板材，因而在风管选择较小板厚时，要选择误差范围小的钢板，以免造成钢材的浪费。

The thickness of the air duct has a great influence on the quality of the air duct. In order to ensure the weight of the air duct, the minimum thickness of the air duct should be selected, but the selection process is still related to the size and pressure level of the air duct. In our country, most of the metal ducts are hot-dip galvanized steel sheet and steel strip. Its base is cold-rolled low-carbon structural steel sheet. Its tensile strength is more than 270, elongation is more than 24%, and the allowable difference of thickness is within the range of d=0.6-1.2 mm (+0.07-0.13 mm). Because of the gap between the industrial technology and the testing technology in our country and abroad, it is adopted domestically. The thickness of duct plate is 20% bigger than that of foreign standards, but with the development of economy and technology in our country, many domestic manufacturers have been able to produce high quality sheet with uniform thickness. Therefore, when choosing the minimum thickness of duct, the steel plate with small error range should be selected to avoid waste of steel.

此外，从设计角度来看，值得注意的是一个系统可以同时存在几种对应于不同静压级别的风管板厚。在正压风管系统的末端或负压风管的前端，往往可以采用低压风管，而接近风机的部位可以采用中压或高压风管。

In addition, from the design point of view, it is noteworthy that a system can exist at the same time several corresponding to different static pressure levels of the duct thickness. At the end of the positive pressure duct system or the front of the negative pressure duct, the low pressure duct can be used, and the middle or high pressure duct can be used near the fan.