本文關(guān)鍵詞： 甲醛 裝修材料 散發(fā)模型 CFD 數(shù)值模擬　出處：《青島理工大學(xué)》2010年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著公眾生活水平的提高和家居用品的多樣化,裝修、家具、電磁輻射已成為室內(nèi)重要污染源。其中,以裝修材料、家具產(chǎn)生的污染物對人的危害最嚴(yán)重。室內(nèi)空氣質(zhì)量的優(yōu)劣,關(guān)系到人民群眾的身心健康,很大程度上,也關(guān)系到人民群眾的生活質(zhì)量。2001年11月,建設(shè)部和國家質(zhì)量監(jiān)督檢疫總局聯(lián)合發(fā)布了《民用建筑工程室內(nèi)環(huán)境污染控制規(guī)范》。其雖然對裝修材料有害物含量、裝修材料的選擇、施工過程、驗(yàn)收等進(jìn)行了規(guī)定,但裝修時即使使用的是符合有害物質(zhì)限量標(biāo)準(zhǔn)的室內(nèi)裝飾裝修材料,如果用量過大也會造成室內(nèi)有害物超標(biāo)。對家居裝修產(chǎn)生的室內(nèi)有害物進(jìn)行總量控制是控制室內(nèi)污染的最有效措施�？偭靠刂频脑瓌t是家居裝修需要從裝修材料選擇與裝修材料的用量控制、裝修方案優(yōu)化、施工工藝等各個環(huán)節(jié)對室內(nèi)有害物進(jìn)行總量控制。 裝修材料的用量控制是室內(nèi)甲醛總量控制中的一個環(huán)節(jié),本文主要研究裝修材料用量對室內(nèi)甲醛濃度的影響。首先根據(jù)現(xiàn)有板材甲醛散發(fā)模型計算得到所用裝修板材的甲醛散發(fā)率。然后分三種工況分別運(yùn)用CFD仿真計算。 首先是房間在新裝修后自然通風(fēng)狀態(tài)下,分三種工況分別研究板材的使用面積對房間內(nèi)甲醛分布的影響,并利用三次樣條插值求出板材多種使用面積下,房間內(nèi)甲醛濃度達(dá)標(biāo)所要進(jìn)行自然通風(fēng)的時間。初步得出隨著板材使用面積的增加,房間內(nèi)甲醛濃度達(dá)標(biāo)所用的時間也越長。其次研究了在通風(fēng)達(dá)標(biāo)后對房間密閉12h三種工況下房間的甲醛濃度情況。密閉房間內(nèi)室內(nèi)氣流穩(wěn)定,污染物的濃度差引起空氣的自然對流,室內(nèi)污染物由污染源逐漸向房間各處擴(kuò)散,并利用三次樣條插值求出在房間密閉12h時刻,板材不同的使用面積下所對應(yīng)的甲醛濃度。根據(jù)《民用建筑工程室內(nèi)環(huán)境污染控制規(guī)范》GB50325(2006年版)規(guī)定的甲醛的最高室內(nèi)允許濃度為目標(biāo),分析裝修材料的合理用量。 本文通過研究得到裝修材料的用量與室內(nèi)的空氣中甲醛濃度的關(guān)系,對室內(nèi)污染物總量控制的研究及指導(dǎo)實(shí)際裝修時避免室內(nèi)甲醛濃度超標(biāo)具有一定的參考價值。
[Abstract]:With the improvement of public living standards and the diversification of household supplies, decoration, furniture, electromagnetic radiation has become an important source of indoor pollution. Among them, to decorate materials. The pollution produced by furniture is the most serious harm to people. The quality of indoor air is related to the physical and mental health of the people, and to a large extent, to the quality of life of the people. November 2001. The Ministry of Construction and the State General Administration of quality Supervision and Quarantine jointly issued the Indoor Environmental pollution Control Code for Civil Building Engineering. Although it is harmful to decoration materials, selection of decoration materials, construction process. Acceptance and acceptance of the provisions, but decoration even if the use of harmful substances in accordance with the limited number of indoor decoration materials. If the dosage is too large, it will cause the indoor harmful substances to exceed the standard. It is the most effective measure to control indoor pollution to control the total amount of the indoor harmful matter produced by the household decoration. The principle of the total quantity control is that the home decoration needs from the decoration material. Select and control the amount of decoration materials. Decoration program optimization, construction technology and other links to indoor total control of harmful substances. The quantity control of decoration material is one of the links in indoor formaldehyde total control. This paper mainly studies the effect of decoration material dosage on indoor formaldehyde concentration. Firstly, according to the existing formaldehyde emission model of sheet metal, the formaldehyde emission rate of decoration plate is calculated. Then, CFD simulation is used in three working conditions. Calculation. First of all, under the condition of natural ventilation after the new decoration, the effect of using area of the plate on the formaldehyde distribution in the room is studied in three working conditions, and the cubic spline interpolation is used to calculate the various use areas of the plate. The time of natural ventilation when the formaldehyde concentration in the room is up to the standard. The preliminary conclusion is that with the increase of the use area of the plate. The longer it takes to reach the standard of formaldehyde concentration in the room, the more time it takes. Secondly, the formaldehyde concentration in the room under the three working conditions of sealing the room for 12 hours after the ventilation standard is studied. The airflow in the closed room is stable. The concentration difference of pollutants caused the natural convection of air, the indoor pollutants gradually diffused from the source of pollution to the room, and the cubic spline interpolation was used to calculate the time of 12 hours in the room airtight. Formaldehyde concentrations corresponding to different serving areas of plates-according to the code for indoor environmental pollution control in civil building engineering GB50325 (2006). The maximum allowable indoor concentration of formaldehyde is the target. Analyze the reasonable dosage of decoration materials. The relationship between the amount of decoration materials and the concentration of formaldehyde in indoor air was obtained. It is valuable to study the total amount of indoor pollutants and to guide the decoration to avoid the indoor formaldehyde concentration exceeding the standard.
【學(xué)位授予單位】：青島理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2010
【分類號】：X51

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