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室內(nèi)裝飾材料甲醛釋放規(guī)律的模擬及防治技術(shù)研究

發(fā)布時(shí)間:2018-01-17 16:37

  本文關(guān)鍵詞:室內(nèi)裝飾材料甲醛釋放規(guī)律的模擬及防治技術(shù)研究 出處:《中南大學(xué)》2010年碩士論文 論文類(lèi)型:學(xué)位論文


  更多相關(guān)文章: 裝飾材料 甲醛 數(shù)值模擬 防治技術(shù) 室內(nèi)空氣品質(zhì)


【摘要】:隨著生活水平的提高,人們對(duì)室內(nèi)裝飾材料的環(huán)保性日益重視,目前的研究已證明,各種裝飾材料散發(fā)甲醛、苯(及苯系物)、氨等各種揮發(fā)性有機(jī)物在相對(duì)封閉的空間中形成了對(duì)人體有害的污染物釋放源,其濃度與人體罹患諸多疾病風(fēng)險(xiǎn)成正相關(guān)。所以,如何減少室內(nèi)有害氣體濃度,使人們能有一個(gè)更加健康的生活環(huán)境顯得意義重大。目前對(duì)于減少室內(nèi)有害氣體濃度的相關(guān)研究主要注重于控制污染源、加強(qiáng)室內(nèi)通風(fēng)及延長(zhǎng)入住日期,而對(duì)于室內(nèi)局部有害氣體濃度與室內(nèi)家具擺放位置關(guān)系的研究尚無(wú)相關(guān)文獻(xiàn)報(bào)道。本文擬在以甲醛為研究對(duì)象,利用FLUENT軟件,在特定空間內(nèi)對(duì)局部空間甲醛濃度與家具擺放位置的關(guān)系進(jìn)行模擬,為室內(nèi)家具擺放方式提供參考,提高室內(nèi)空氣品質(zhì),從而減少甲醛對(duì)人體危害。 本文研究的主要內(nèi)容及主要成果是: (1)介紹了室內(nèi)裝飾材料的種類(lèi),并以家具為重點(diǎn)研究對(duì)象,分析影響家具甲醛釋放的因素以及家具的甲醛釋放機(jī)理。 (2)選用FLUENT軟件為模擬平臺(tái),模擬辦公室內(nèi)甲醛污染物的濃度分布。選用了書(shū)柜和辦公桌為污染物釋放源,并選擇了一個(gè)甲醛擴(kuò)散具有典型性的辦公室為主要研究對(duì)象,建立三維模型。并且設(shè)計(jì)了家具在室內(nèi)的3種布置情況,模擬在既定的通風(fēng)模式下,甲醛的濃度分布狀況。 (3)在一定通風(fēng)條件下,特定溫度、特定裝修的空間內(nèi),室內(nèi)局部甲醛濃度與家具布局有關(guān),通過(guò)不同方案的家具布局,對(duì)室內(nèi)局部甲醛濃度進(jìn)行模擬計(jì)算,以人們頻繁活動(dòng)點(diǎn)(區(qū)域)的局部甲醛濃度為參考,可以得出室內(nèi)最佳家具布局方案,從而減少人體對(duì)甲醛的吸收。 (4)密閉空間內(nèi)總體甲醛濃度比通風(fēng)空間高,通風(fēng)對(duì)室內(nèi)甲醛污染的擴(kuò)散明顯有利,室內(nèi)甲醛的高濃度區(qū)域(除了污染源附近)主要集中在通風(fēng)狀況不好的地方。甲醛在相對(duì)密閉空間內(nèi)局部濃度有差異,受污染物的數(shù)量,距離污染源的距離以及房間內(nèi)的氣流流動(dòng)狀態(tài)多方面的影響。一般遵循以下規(guī)律:在整個(gè)房間內(nèi),污染物數(shù)量相對(duì)多的區(qū)域甲醛的濃度更高,距離污染源近的區(qū)域甲醛濃度高,氣體在室內(nèi)流動(dòng)時(shí)形成漩渦且風(fēng)速較小的區(qū)域甲醛濃度高。 (5)最后從室內(nèi)裝飾材料甲醛的污染物源頭、甲醛污染防治技術(shù)、綠色建材的開(kāi)發(fā)、科學(xué)合理的裝修和家具布局以及管理等方面提出一些防治措施。
[Abstract]:With the improvement of living standards, people pay more and more attention to the environmental protection of interior decoration materials. The current research has proved that all kinds of decorative materials emit formaldehyde, benzene (and benzenes). Ammonia and other volatile organic compounds form harmful pollutant release sources in relatively closed space, and their concentrations are positively related to the risk of many diseases. Therefore, how to reduce the concentration of indoor harmful gases. It is of great significance to make people have a healthier living environment. At present, the research on reducing indoor harmful gas concentration mainly focuses on controlling the pollution sources, strengthening indoor ventilation and extending the occupancy date. However, there is no related literature about the relationship between indoor local harmful gas concentration and the location of indoor furniture. In this paper, formaldehyde is taken as the research object and FLUENT software is used. This paper simulates the relationship between formaldehyde concentration in local space and the location of furniture in a special space to provide reference for indoor furniture placement and improve indoor air quality, thus reducing the harm of formaldehyde to human body. The main contents and achievements of this paper are as follows: The main contents of this paper are as follows: 1) the types of interior decoration materials are introduced, and the factors influencing the formaldehyde release of furniture and the formaldehyde releasing mechanism of furniture are analyzed. (2) FLUENT software was selected as the simulation platform to simulate the concentration distribution of formaldehyde pollutants in the office, and the bookcase and desk were selected as the pollutant release source. A typical office with formaldehyde diffusion was selected as the main research object to establish a three-dimensional model, and designed three kinds of furniture layout in the room, simulation in the established ventilation mode. The concentration distribution of formaldehyde. 3) under certain ventilation conditions, specific temperature, special decoration space, indoor local formaldehyde concentration and furniture layout, through different plans of furniture layout. The indoor local formaldehyde concentration is simulated and calculated. With reference to the local formaldehyde concentration of people's frequent moving points (areas), the best indoor furniture layout scheme can be obtained, thus reducing the absorption of formaldehyde by human body. 4) the total formaldehyde concentration in the confined space is higher than that in the ventilated space, and ventilation is beneficial to the diffusion of indoor formaldehyde pollution. The high concentration area of indoor formaldehyde (except near the pollution source) is mainly concentrated in the place where the ventilation condition is not good. There are differences in the local concentration of formaldehyde in the relatively closed space and the quantity of pollutants. The influence of the distance from the pollution source and the air flow state in the room. Generally, the following rules are followed: in the whole room, the concentration of formaldehyde is higher in the area with relatively large amount of pollutants. The concentration of formaldehyde in the area close to the source of pollution is high, and the concentration of formaldehyde is high in the area where the gas flows in the room and the wind speed is small. Finally, some preventive measures are put forward from the sources of formaldehyde pollutants in interior decoration materials, the prevention and control technology of formaldehyde pollution, the development of green building materials, the scientific and reasonable decoration, furniture layout and management, etc.
【學(xué)位授予單位】:中南大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2010
【分類(lèi)號(hào)】:X51

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