關(guān)于空氣凈化工程通風(fēng)除塵裝置的結(jié)構(gòu)闡述
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- 發(fā)布日期：2017-04-13 16:17:53
空氣凈化工程常用通風(fēng)系統(tǒng)的不足之處有：
Common ventilation system of air purification engineering is a lack of:
（1）氣流組織不合理，對于送（回）風(fēng)口的位置、型式和送風(fēng)射流參數(shù)之間的關(guān)系處理不當(dāng)，以至于氣流分布不均勻，產(chǎn)生渦流，積聚有害物質(zhì)。
(1) the air flow organization is not reasonable, to send (back) tuyere location, type and send wind jet parameters between the inappropriate handling of the relationship between that airflow distribution is not uniform, the vortex, the accumulation of harmful substances.
（2）通風(fēng)機(jī)參數(shù)選擇不合理，沒有經(jīng)過必要的計(jì)算，憑經(jīng)驗(yàn)決定通風(fēng)次數(shù)及余熱、有害物質(zhì)濃度等問題，致使風(fēng)量、風(fēng)壓的過大或過小。
(2) fan parameters selection is unreasonable, not after the necessary calculations and empirically decided times of ventilation and heat, the concentration of harmful substances and other issues, resulting in volume and pressure is too large or too small.
（3）聲學(xué)技術(shù)不合理，在空氣凈化工程 http://www.jnjkjh.com/實(shí)際中常常忽視聲學(xué)設(shè)計(jì)，多數(shù)采用單臺(tái)通風(fēng)機(jī)的方案，而且風(fēng)機(jī)功率和轉(zhuǎn)速偏大，造成聲級高、振動(dòng)大，從而給噪聲與振動(dòng)控制帶來困難。
(3) acoustic technology is not reasonable, air purification in the engineering practice often ignore the acoustical design, most of them adopt the scheme of single fan and fan power and speed is too large, resulting in high sound level, vibration, thus to the noise and vibration control difficult.
新設(shè)計(jì)消聲通風(fēng)除塵裝置由過濾除塵器、進(jìn)氣口阻性片式消聲器、排氣口阻性片式消聲器、風(fēng)機(jī)隔聲罩及離心風(fēng)機(jī)等幾部分組成。在滿足通風(fēng)要求的前提下，采用兩臺(tái)風(fēng)機(jī)的設(shè)計(jì)方案，以盡量降低其噪聲影響。
The new design of the ventilation and dust removal device is composed of a filter dust collector, an air inlet of the air inlet, an exhaust port, a muffler, a wind turbine sound insulation cover and a centrifugal fan. On the premise of meeting the requirement of ventilation, the design scheme of two Typhoon aircraft is adopted to reduce the noise effect.
該消聲通風(fēng)除塵裝置所依據(jù)的基本原理為：無論采取何種通風(fēng)方式，當(dāng)單位時(shí)間進(jìn)入室內(nèi)的空氣質(zhì)量和同一時(shí)間排出室內(nèi)的空氣質(zhì)量保持相等時(shí)，通風(fēng)房間空氣質(zhì)量保持平衡，其數(shù)學(xué)表達(dá)式為：Mjj+Mzj=Mjp+Mzp，其中，Mjj和Mzj分別為強(qiáng)制進(jìn)風(fēng)量和自然進(jìn)風(fēng)量，Mjp和Mzp分別為強(qiáng)制排風(fēng)量和自然排風(fēng)量。當(dāng)Mjj>Mjp時(shí)室內(nèi)空氣壓力大于室外空氣壓力，室內(nèi)為正壓，這時(shí)部分空氣會(huì)通過房間不嚴(yán)密的縫隙、窗戶或門洞滲到室外，使外界灰塵進(jìn)不到房間內(nèi)部。
The silencing, ventilating and dust removing device is based on the basic principle is: whatever the way of ventilation, when units of time into indoor air quality and at the same time discharge indoor air quality remains the same, the ventilation room air quality to maintain a balance, the mathematical expression of: Mjj+Mzj=Mjp+Mzp, which, Mjj Mzj respectively is forced into the air and natural wind, and Mzp Mjp respectively forced ventilation and natural ventilation. When Mjj>Mjp indoor air pressure is greater than the outside air pressure, indoor positive pressure, then part of the air will through the room does not close the gap, a window or door infiltration to the outside, outside the dust can not enter into the inside of the room.
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