通風(fēng)管道施工質(zhì)量控制措施研究

發(fā)布人：http://www.hkcts.com.cn   發(fā)布時(shí)間：2018-09-18 14:12:58

隨著社會(huì)經(jīng)濟(jì)的發(fā)展，人民物質(zhì)生活水平的不斷提高享受現(xiàn)代化設(shè)施設(shè)備的愿望不斷加強(qiáng)，空調(diào)系統(tǒng)得到了越來(lái)越多的應(yīng)用，空調(diào)通風(fēng)管道系統(tǒng)的合理性，對(duì)提高整個(gè)社會(huì)的能源的有效利用率，減少能源的浪費(fèi)，起著重要的作用。如何在保證既有建筑功能和居住環(huán)境質(zhì)量的同時(shí)，又能兼顧到性和經(jīng)濟(jì)性，使改造工程得到用戶的認(rèn)可，更有利的促進(jìn)改造。這就需要一種全新的評(píng)價(jià)方法，而不是傳統(tǒng)的只考慮性或者經(jīng)濟(jì)性的單一評(píng)價(jià)，來(lái)體現(xiàn)改造的優(yōu)越性。目前，隨著通風(fēng)工程施工工藝的不斷提高，通風(fēng)系統(tǒng)對(duì)風(fēng)管制作和安裝具有很高的要求，但是還是存在影響施工質(zhì)量的問(wèn)題存在。本文將就辦公樓通風(fēng)系統(tǒng)的安裝施工質(zhì)量控制展開探討。

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.施工前準(zhǔn)備工作

1. preparation before construction

凈化風(fēng)管的質(zhì)量直接關(guān)系到系統(tǒng)是否達(dá)到設(shè)計(jì)參數(shù)和正常使用要求，其制作一般采用工廠集中制作和現(xiàn)場(chǎng)制作兩種方式。無(wú)論采用哪種制作方式，都要保證制作場(chǎng)地的潔凈和封閉，較好選用水泥地面或地面鋪設(shè)金屬鋼板，其面積不得小于100m?，且滿足采光和照明條件，制作完成的凈化風(fēng)管要進(jìn)行堆放，并進(jìn)行看管;如果選用現(xiàn)場(chǎng)預(yù)制時(shí)，要保證預(yù)制完成后的風(fēng)管能夠及時(shí)運(yùn)施工現(xiàn)場(chǎng)，盡量減少風(fēng)管搬運(yùn)的距離，這樣可以避免運(yùn)輸過(guò)程中對(duì)風(fēng)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.風(fēng)管的設(shè)計(jì)安裝

2. design and installation of duct

風(fēng)管板厚的選擇

Selection of duct thickness

板厚對(duì)風(fēng)管的質(zhì)量影響較大，為了保證風(fēng)管的重量，要選用較小板厚的風(fēng)管，但是選用的過(guò)程還是和風(fēng)管的尺寸和壓力級(jí)別有關(guān)。在我國(guó)，大部分的金屬風(fēng)管采用的是熱鍍鋅鋼板和鋼帶，他的基體是冷軋低碳結(jié)構(gòu)鋼板，其抗拉強(qiáng)度>270 ，延伸率>24%，厚度允許差值為d=0.6-1.2mm范圍內(nèi)(±0.07-0.13mm)，因?yàn)槲覈?guó)的工業(yè)技術(shù)和檢測(cè)技術(shù)與國(guó)外具有一定差距，國(guó)內(nèi)采用的風(fēng)管板厚要比國(guó)外標(biāo)準(zhǔn)大20%，但隨著我國(guó)經(jīng)濟(jì)技術(shù)的不斷發(fā)展，許多國(guó)內(nèi)廠商已經(jīng)有能力生產(chǎn)厚度均勻的板材，因而在風(fēng)管選擇較小板厚時(shí)，要選擇誤差范圍小的鋼板，以免造成鋼材的浪費(fèi)。

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，從設(shè)計(jì)角度來(lái)看，值得注意的是一個(gè)系統(tǒng)可以同時(shí)存在幾種對(duì)應(yīng)于不同靜壓級(jí)別的風(fēng)管板厚。在正壓風(fēng)管系統(tǒng)的末端或負(fù)壓風(fēng)管的前端，往往可以采用低壓風(fēng)管，而接近風(fēng)機(jī)的部位可以采用中壓或高壓風(fēng)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.