地下停車庫(kù)通風(fēng)設(shè)計(jì)要求都有哪些方面？

發(fā)布人：http://www.hkcts.com.cn   發(fā)布時(shí)間：2020-04-03 14:16:35

　　隨著城市現(xiàn)代化建設(shè)的不斷發(fā)展,城市土地越來(lái)越緊張,越來(lái)越多的私人汽車滿足停車的需要,大型地下停車場(chǎng),建設(shè)大型地下停車場(chǎng),如何有效地解決地下車庫(kù)的通風(fēng)和排煙控制問(wèn)題是一個(gè)重要的問(wèn)題在地下停車場(chǎng)的設(shè)計(jì),本文總結(jié)了大型地下停車場(chǎng)(大于2000)在設(shè)計(jì)中存在的一些問(wèn)題。

　　With the continuous development of urban modernization, urban land is becoming more and more tense, more and more private cars meet the needs of parking, large-scale underground parking lot, construction of large-scale underground parking lot, how to effectively solve the problem of ventilation and smoke control of underground parking lot is an important problem in the design of underground parking lot, This paper summarizes some problems existing in the design of large-scale underground parking lot (more than 2000 square meters).

　　地下車庫(kù)排風(fēng)量計(jì)算

　　Calculation of exhaust air volume of underground garage

　　CO.衛(wèi)生標(biāo)準(zhǔn)[7]的更大允許濃度為30 mg/ m3，但在操作時(shí)間較短時(shí)可以放寬。1小時(shí)內(nèi)運(yùn)行時(shí)間為50mg / m3;半小時(shí)100 mg/ m3;20分鐘是200毫克/立方米。但在上述條件下重復(fù)操作時(shí)，兩次操作間隔應(yīng)大于2小時(shí)。在計(jì)算中，數(shù)值變化很大，有的取C=100 mg/ m3;有的服用C=100PPM (125 mg/ m3)，有的服用200 mg/ m3。進(jìn)口風(fēng)中CO的濃度。有的值為C0=2.5~3.5 mg/ m3，有的值為C0=3PPM(3.75 mg/ m3)。有些是C0=100PPM (125 mg/ m3)。

　　The maximum allowable concentration of Co. in Chinese health standard [7] is 30 mg / m3, but it can be relaxed in a short time. The operation time within one hour is 50mg / m3; half an hour is 100mg / m3; 20 minutes is 200mg / m3. However, in case of repeated operation under the above conditions, the interval between the two operations shall be greater than 2 hours. In the calculation, the values vary greatly, some take C = 100 mg / m3, some take C = 100 ppm (125 mg / m3), some take 200 mg / m3. The concentration of CO in the inlet air. Some values are C0 = 2.5 ~ 3.5 mg / m3, while others are C0 = 3ppm (3.75 mg / m3). Some are C0 = 100 ppm (125 mg / m3).

　　二。排煙計(jì)算

　　II. Smoke exhaust calculation

　　根據(jù)《汽車庫(kù)、修車庫(kù)、停車場(chǎng)設(shè)計(jì)防火規(guī)范》計(jì)算的煙塵量應(yīng)按通風(fēng)次數(shù)不少于6次/小時(shí)計(jì)算，一般取6次/小時(shí)。

　　According to the code for fire protection design of garage, repair garage and parking lot, the amount of smoke and dust shall be calculated according to the ventilation times no less than 6 times / hour, generally 6 times / hour.

　　通風(fēng)配風(fēng)設(shè)計(jì)

　　Ventilation and air distribution design

　　根據(jù)5.3.11條為采暖通風(fēng)和空調(diào)設(shè)計(jì)代碼,當(dāng)分散氣體的密度比空氣重的顯熱建筑并不足以形成一個(gè)穩(wěn)定的上升氣流和沉積在較低的地區(qū),建議從低排放總量的2/3排氣面積和排氣上總面積的1/3。因此排氣口的布置應(yīng)滿足排氣口下部面積為排氣口上部面積的2倍，且排氣口位置應(yīng)均勻，盡量靠近汽車后部。

　　According to the design code for heating, ventilation and air conditioning in 5.3.11, when the sensible building with the density of the dispersed gas heavier than the air is not enough to form a stable updraft and deposit in the lower area, it is recommended to exhaust 2 / 3 of the total amount of low emission and 1 / 3 of the total area of exhaust. Therefore, the layout of the exhaust port should meet the requirement that the area of the lower part of the exhaust port is twice of the area of the upper part of the exhaust port, and the position of the exhaust port should be uniform, as close to the rear of the car as possible.

　　排煙氣流組織設(shè)計(jì)

　　Design of smoke exhaust and air distribution

　　(1)根據(jù)兩者中更大的計(jì)算系統(tǒng)風(fēng)道尺寸。

　　(1) Calculate the system air duct size based on the largest of the two.

　　(2)根據(jù)地下停車庫(kù)的風(fēng)量計(jì)算，換氣次數(shù)一般為5~7次/h，排煙量一般為6次/h。筆者認(rèn)為，只要根據(jù)風(fēng)量和排煙量，兩者中更大的可以選擇單速風(fēng)機(jī)，使用雙速風(fēng)機(jī)意義不大，有時(shí)甚不能滿足通風(fēng)要求。

　　(2) According to the air volume calculation of underground parking garage, the air change frequency is generally 5-7 times / h, and the smoke exhaust volume is generally 6 times / h. The author thinks that the single speed fan can be selected as long as it is based on the air volume and smoke exhaust volume, and the use of two speed fan is of little significance, sometimes it can not even meet the ventilation requirements.

　　(3)根據(jù)通風(fēng)體積的1/3建立上層通風(fēng),通風(fēng)體積建立低2/3的發(fā)泄,然后根據(jù)煙霧排放體積檢查上層通風(fēng)是否滿足煙排放要求,否則調(diào)整的面積上發(fā)泄,所有的排氣閥都是裝備,為了控制的上部和下部區(qū)域排氣體積。而下風(fēng)口則裝有電動(dòng)葫蘆，在發(fā)生火災(zāi)時(shí)，即可就地或遠(yuǎn)程啟閉風(fēng)口，滿足排煙要求。

　　(3) According to 1 / 3 of the ventilation volume, the upper ventilation is established, and the ventilation volume is 2 / 3 lower. Then, check whether the upper ventilation meets the smoke emission requirements according to the smoke emission volume. Otherwise, vent on the adjusted area, all the exhaust valves are equipped to control the exhaust volume of the upper and lower areas. In case of fire, the air outlet can be opened and closed locally or remotely to meet the smoke exhaust requirements.

　　以上就是濟(jì)南黑白鐵加工對(duì)車庫(kù)管道的設(shè)計(jì)要求的詳細(xì)介紹，想要了解更多請(qǐng)點(diǎn)進(jìn)官網(wǎng)http://www.hkcts.com.cn

　　The above is a detailed introduction to the design requirements of Jinan black and white iron processing for garage pipes. For more information, please click http://www.hkcts.com.cn