AAF濾網(wǎng)培訓(xùn)方案.ppt

1、Better Air Is Our Business,AAF Training Brief,為什么要使用過(guò)濾器進(jìn)行過(guò)濾？ 空氣過(guò)濾器原理 AAF過(guò)濾器種類及參數(shù) 空氣過(guò)濾器的測(cè)試和標(biāo)準(zhǔn) 安裝,操作和維護(hù),Better Air Is Our Business,粗劣的空氣過(guò)濾的后果,粗劣的空氣過(guò)濾,粗劣的清潔系統(tǒng)和室 內(nèi)空氣質(zhì)量,建筑里人們的舒適，健康生活和生產(chǎn)的負(fù)作用 SBS (= 病態(tài)建筑綜合癥) 和 BRI (= 建筑疾病),Better Air Is Our Business,建筑綜合癥 (SBS),伴隨急劇不適的癥狀: -頭痛 -注意力不集中 -呼吸困難 -皮疹 -上呼吸道問(wèn)題 -惡心

2、-疲勞 -視力模糊 -其他 原因不易被發(fā)現(xiàn) 離開建筑物可減輕痛苦,Better Air Is Our Business,與建筑物有關(guān)的疾病 (BRI),疾病: -退伍軍人病 -敏感性肺炎 -過(guò)敏性鼻炎 -濕熱癥 -哮喘 -毒枝菌素中毒 -內(nèi)毒素中毒 需要立即關(guān)注 以臨床癥狀表現(xiàn) 比 SBS更嚴(yán)重: 延長(zhǎng)的痊愈時(shí)間,Better Air Is Our Business,空氣中的無(wú)生命和生物微粒污染物影響,灰塵 20%,細(xì)菌12%,玻璃纖維 5%,尾氣 4%,香煙煙塵 3%,其他 28%,真菌 28%,HBI的一份調(diào)查顯示真菌和細(xì)菌是低劣的IAQ的主要原因 大約70%室內(nèi)空氣質(zhì)量差的建筑是由空氣傳

3、播的微粒造成的，可用適當(dāng)?shù)目諝膺^(guò)濾解決 大約40%室內(nèi)空氣質(zhì)量差的建筑的主要原因是生物微粒（細(xì)菌，真菌孢子和他們的副產(chǎn)品）,資料來(lái)源: 世界建筑衛(wèi)生,Better Air Is Our Business,過(guò)濾器如何工作？,過(guò)濾器攜帶無(wú)生命的微粒和微生物包含微粒 生物穩(wěn)定劑抑制濾紙上的真菌和細(xì)菌的生長(zhǎng) 生物穩(wěn)定劑減少在濾紙上和穿過(guò)濾紙的微生物的生長(zhǎng)潛力 過(guò)濾器的結(jié)合面和空氣過(guò)濾器的生物穩(wěn)定劑阻止微生物下移到呼吸區(qū)域 抗菌劑也能有效對(duì)抗一些微生物引發(fā)的異味,Better Air Is Our Business,Principles of Air Filtration空氣過(guò)濾器原理,Physics

4、of Filtration Technology過(guò)濾原理,Better Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,There are six basic physical phenomena, of which four are applied to common air filter products以下有六種基本的物理過(guò)濾原理，其中四種過(guò)濾原理在空氣過(guò)濾器里最常見 Sieving篩分 Inertial separation慣性分離 (viscous) impingement粘貼抗擊 Interception捕捉 Dif

5、fusion擴(kuò)散 Electrostatic charged filtration (active and passive)靜電吸附 有：(主動(dòng)和被動(dòng)),Better Air Is Our Business,Physics of Filtration Technology過(guò)濾器原理,Sieving篩分 Particles are retained as the physical size is larger than the opening of the mesh 尺寸較篩孔大的微粒被留下 Not used in common air filtration, although some ver

6、y large particles may get sieved out of the air 通常不應(yīng)用于空氣過(guò)濾器中，盡管一些大的微粒可能被從氣體中分揀出來(lái),Better Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,氣流,引力,沉淀物,Inertial separation慣性分離 Particles are removed from the airflow by gravitational forces由于地球引力的作用，空氣中的部分微粒被分離出來(lái) Principle is applicable to (very) l

7、arge particles on which gravitational forces can act 此原理適用于非常大的微粒，可由重力分離 Applied in Cyclones and Dust Louvre inertial separator 應(yīng)用于旋流收塵器和百葉窗惰性分離器,Better Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,(Viscous) Impingement:粘貼并抗擊 Principle is based on as many particles as possible colliding

8、(impinging) and sticking to filter media（原理是基于很多微粒盡可能撞擊以及粘帖在過(guò)濾器上） An efficient adhesive is required to retain heavy particles (viscous adhesive) 需要一種有效的粘合劑來(lái)保留重的微粒（較粘的粘合劑） Principle is used in prefilters and is effective for large, heavy particles only（僅適用于早期過(guò)濾，而且僅對(duì)大、重的微粒有效） Filter media should have

9、as many large fibers as possible to increase particle impingement 過(guò)濾介質(zhì)應(yīng)該有很多大的纖維，可以用來(lái)提高微粒的撞擊。 A high air velocity, typically 1.5 to 3.0 m/s, to increase collision/impingement ratio. 高的氣流速度，通常1.5到3.0米/秒，可提高撞擊比率。,Better Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,Viscous Impingement粘貼并抗擊,B

10、etter Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,Interception捕捉法 Principle is based on intercepting as many particles as possible in fine packed fleece of filtration media 此原理基于在大量微粒中攔截被過(guò)濾器介質(zhì)群集在一起塵絮 A low media velocity, typically 0,1 m/s, is required to achieve effective air filtratio

11、n and to avoid blow-off 低速度，通常0,1 米/秒，需要高效且?guī)в泄娘L(fēng)系統(tǒng)的空氣過(guò)濾器來(lái)完成 The incidence of interception is increasing with particle size until a point is reached where the particle will be re entrained into the air stream 攔截的范圍可隨著微粒的大小增長(zhǎng)，直到達(dá)到一個(gè)微?？梢员恢匦螺斎氲綒饬髦械囊粋€(gè)臨界點(diǎn)。 Principle is used in medium efficiency filters 此原理

12、被應(yīng)用于中效的過(guò)濾器,Better Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,Diffusion擴(kuò)散 Principle is based on very small particles having very little mass and therefore behaving like gas molecules 此原理基于具有非常小密度的非常小的微粒，比如氣體分子 Collision with the gas molecules results in randomly moving particles and is

13、known as Brownian movement 隨機(jī)運(yùn)動(dòng)的氣體分子相互碰撞的結(jié)果，如眾所周知的布朗運(yùn)動(dòng) Intercepting as many particles and thus achieving affective air filtration , requires a very low media velocity of typically 0.02 m/s 大部分微粒的攔截是在高效空氣過(guò)濾器里完成，需要的速度非常小，通常是0.02 米/鈔 The molecular forces of attraction, known as Van der Waals force, tha

14、t exist between particles and media, retain the particle on the filter media 分子的擴(kuò)散力，如凡得瓦爾引力，存在于微粒和介質(zhì)之間，過(guò)濾器會(huì)把微粒留住。 Principle is therefore getting more effective, the smaller and lighter the particle is. 此原理更高效，微粒更小、更輕 The principle is used in medium and high efficiency filters 此原理用于中高效過(guò)濾器,Better Air

15、Is Our Business,Physics of Filtration Technology過(guò)濾原理,Diffusion擴(kuò)散,Interception 捕捉,Better Air Is Our Business,Physics of Filtration Technology過(guò)濾原理,Active electrostatic charged filtration靜電吸附 Principle is based on positively charged particles being attracted onto oppositely charged plates 此原理基于帶正電荷的微粒與

16、帶負(fù)電荷的微粒在電場(chǎng)中互相撞擊。 Dust particles are held on the plate by viscous adhesive coating 灰塵微粒在電場(chǎng)中被吸附。 On the plates particles agglomerate before being blown into a secondary filter or being washed down 在電場(chǎng)中，微粒在被吹進(jìn)第二層過(guò)濾器中或者被清洗掉前先凝聚。 Principle is effective for all particle sizes and effectiveness depend on a

17、pproach velocity and charge 此原理對(duì)所有尺寸的微粒有效，其效用取決于電荷所能達(dá)到的速度。 Because of high investment cost and maintenance not very common in general HVAC installations 由于高的成本和維護(hù)費(fèi)用，在通常的暖通設(shè)備安裝里面并不常用。 Principle is used for large industrial dust collectors (electrostatic precipitators) and small self-contained unitary

18、 collectors for ultra fine sub micron particulates and aerosols such as tobacco smoke, welding fumes and oil mist 此原理用于大型的工業(yè)塵埃收集器（電收集器）和小容量的用于更精細(xì)的微粒與浮質(zhì)的收集器 ，比如煙霧， 焊接煙，油煙,Better Air Is Our Business,Physics of Filtration Technology空氣過(guò)濾器技術(shù)原理,Active electrostatic charged filtration主動(dòng)靜電吸附過(guò)濾,Better Air Is

19、 Our Business,Physics of Filtration Technology過(guò)濾原理,Passive electrostatic charged filtration被動(dòng)靜電吸附過(guò)濾,Better Air Is Our Business,Physics of Filtration TechnologyEffective All-round Particle Removal過(guò)濾器技術(shù)原理多方面有效去除微粒,Involves use of different types of filter包括不同使用類型的過(guò)濾器 Coarse filter粗效過(guò)濾器viscous impingem

20、ent粘貼抗擊 Medium Efficiency filter中效過(guò)濾器interception and diffusion攔載和擴(kuò)散 HEPA filter高效過(guò)濾器diffusion擴(kuò)散,過(guò)濾器種類,板式過(guò)濾器 褶皺式過(guò)濾器 袋式過(guò)濾器 箱式過(guò)濾器 高效過(guò)濾器 自動(dòng)卷式過(guò)濾器,Better Air Is Our Business,板式過(guò)濾器:,性能: 合成纖維或玻纖 紙板或自封框架 風(fēng)速:1.52.5m/s 初阻力:6085pa2.5m/s 終阻力:250pa 分類:ASHRAE Arrestance (70%85%) 應(yīng)用: 商業(yè)或工業(yè)領(lǐng)域; 初效預(yù)過(guò)濾器 選擇: 遞增式密度濾料; 承

21、受壓縮的張力; 框架硬度,Better Air Is Our Business,褶皺過(guò)濾器:,性能: 棉/聚酯混合濾紙 硬模切割框架,鐵絲網(wǎng)支撐; 風(fēng)速:1.52.5m/s 初阻力:50-80pa2.5m/s 終阻力:250pa 分類:ASHRAE Dust spot (25%30%) 應(yīng)用: 商業(yè)或工業(yè)領(lǐng)域 作為預(yù)過(guò)濾器防止塵埃積累于暖通空調(diào)的盤管、風(fēng)機(jī)和管槽內(nèi)； 作為預(yù)過(guò)濾器延長(zhǎng)高效過(guò)濾器的壽命 選擇： 適宜的褶間距； 過(guò)濾器的框架硬度； 耐濕度性；,Better Air Is Our Business,袋式過(guò)濾器:,性能: 玻纖或人造纖維濾紙 濾袋數(shù)量; 風(fēng)速:1.83.0m/s 初阻力

22、:50-180pa2.5m/s 終阻力:250pa 分類:ASHRAE Dust spot (40%95%) 應(yīng)用： 商業(yè)辦公建筑、工業(yè)領(lǐng)域 選擇： 適宜的濾紙面積； 無(wú)切削開口； 適宜的濾袋數(shù)量； 框架的堅(jiān)固性；,Better Air Is Our Business,箱式過(guò)濾器:,性能: 玻纖或人造纖維濾紙 堅(jiān)固的框架,鋁箔或熱塑性膠分隔板; 風(fēng)速:2.53m/s 初阻力:100-150pa2.5m/s 終阻力:300pa 分類:ASHRAE 計(jì)數(shù)法 (60%95%) 應(yīng)用： 商業(yè)或工業(yè)領(lǐng)域； 可變風(fēng)量（VAV）系統(tǒng)； 空間局限處 選擇： 適宜的濾紙面積； 過(guò)濾器框架的堅(jiān)固性； 過(guò)濾器空所旁

23、通緊密性； 無(wú)切削刀口 可燃性/可丟棄性,Better Air Is Our Business,高效過(guò)濾器:(HEPA,ULPA),性能: 微細(xì)玻纖濾紙 堅(jiān)固的框架,鋁箔或熱熔膠分隔物; 風(fēng)速:1.252.5m/s 初阻力:250pa1.25m/s 終阻力:500600pa 分類:ASHRAE 99.97%0.3um 應(yīng)用： 半導(dǎo)體、電子工業(yè) 醫(yī)院、醫(yī)藥行業(yè) 食品加工業(yè)，實(shí)驗(yàn)室 選擇： 性能的保證； 高質(zhì)量的材料/工藝； 效能力等級(jí)的范圍，以適合應(yīng)用的范圍,Better Air Is Our Business,Air Filter Testing for General Ventilation

24、空氣過(guò)濾器流通空氣檢測(cè)標(biāo)準(zhǔn),Europe & USA 歐洲 & 美國(guó),Better Air Is Our Business,Filter Testing: Why? 空氣過(guò)濾器測(cè)試:為什么?,Three major concerns in regards to air filters: 空氣過(guò)濾器的三個(gè)主要內(nèi)容： What will be the efficiency of the filter in removing the airborne contamination (usually dust and in a specific size)? 過(guò)濾器怎樣才能更有效地去除空氣中的污穢（通常

25、是特定大小的塵埃）? How much of this dust will it remove before maintenance is required? 在需要維護(hù)以前有多少塵埃被清除？ What resistance will the filter offer to airflow? 過(guò)濾器對(duì)氣流有什么影響？,Better Air Is Our Business,Filter Testing Standards: History? 空氣過(guò)濾器檢測(cè)歷史標(biāo)準(zhǔn)有哪些?,USA Standards美國(guó)標(biāo)準(zhǔn) 亞利桑那州公路灰塵良好Arizona Road Dust Fine 美國(guó)采曖，制冷與空調(diào)

26、工程師學(xué)會(huì)ASHRAE 52.1 1992 美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)ASHRAE 52.2 1999 American （美國(guó)） Society of （社會(huì)） Heating, （采曖） Refrigerating and （制冷） Air Conditioning （空氣條件） Engineers（工程師）,European Standards歐洲標(biāo)準(zhǔn) EuroVent 4/5 DIN 24.185 EN-779 1993 EN-779 - 2002,Better Air Is Our Business,Filter Testing Standards: History空氣過(guò)濾器檢測(cè)

27、標(biāo)準(zhǔn): 過(guò)去,The test results of the ASHRAE 52.1 - 1992 and the EN-779 1993 could be easily compared, you only needed to watch the test parameters 美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)測(cè)試結(jié)果52.1 - 1992和EN-779 1993不容易比較，不過(guò)你可以注意其測(cè)試參數(shù)。 The ASHRAE 52.2 1999 and the EN-779 2002 are more difficult to compare as the classification syst

28、em is not the same 因?yàn)轭悇e不同，所以美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)52.2 1999 與 EN-779 2002 很難比較。,Better Air Is Our Business,Filter Testing Standards過(guò)濾器檢測(cè)標(biāo)準(zhǔn),The standards have evolved to address: 標(biāo)準(zhǔn)改進(jìn)如下： Indoor air quality and air cleanliness in occupied spaces: Health of occupants versus air cleanliness 內(nèi)部空氣質(zhì)量和空氣清潔度達(dá)標(biāo)的空間：空

29、氣清潔度達(dá)到健康的標(biāo)準(zhǔn)。 Protection of products during process manufacture 保護(hù)制造加工產(chǎn)品 Protection of HVAC equipment 保護(hù)曖通系統(tǒng)設(shè)備 Standards makes it possible to compare the filters with each other 標(biāo)準(zhǔn)使得過(guò)濾器之間可以相互比較,Better Air Is Our Business,Criteria for testing:檢測(cè)標(biāo)準(zhǔn): Initial resistance is measured over the clean filter

30、at 25% to 125% of nominal airflow 過(guò)濾器的除塵標(biāo)準(zhǔn)初阻力大于25%到125%的名義氣流。 Initial color test is measured with atmospheric dust 大氣塵埃以顏色為最初的測(cè)試標(biāo)準(zhǔn) The filter will be loaded with ASHREA test dust 過(guò)濾器在包裝前必須一致經(jīng)過(guò)美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)塵埃測(cè)試 The color test + loading the filter will be repeated till the final resistance is reache

31、d 顏色測(cè)試+反復(fù)裝載過(guò)濾器直到最終阻力達(dá)到。 The average grafimetrical efficiency (Arrestance) en the average colorefficiency (Efficiency) will be calculated from initial till final resistance 從初始到結(jié)束將在平均顏色效率中計(jì)算出平均 測(cè)試 效率. The dust holding capacity (DHC) is calculated from the number of dust X average Arrestance 塵埃清除能力在X塵

32、埃平均數(shù)量中得出。,ASHRAE 52.1 - 1992 Methodology美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì) 52.1 - 1992 方法論,Better Air Is Our Business,ASHRAE 52.1 - 1992 Methodology美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì) 52.1 - 1992方法論,Grafimetrical test碳酸鋅測(cè)試,Atmospherische test 大氣測(cè)試,測(cè)量壓力,氣流,過(guò)濾器終端,過(guò)濾器測(cè)試,存塵 瓶,過(guò)濾器測(cè)試,測(cè)量壓力,下游對(duì)象,上游對(duì)象,大氣空氣,Better Air Is Our Business,ASHRAE 52.1 -

33、 1992 Methodology美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)52.1 - 1992 方法論,1,2,3,4,1. Arrestance versus Dust Fed捕捉與塵埃反饋 2. Atm. Dust Spot Efficiency vs. Dust Fed塵埃跟蹤與塵埃反饋 3. Resistance versus Dst fed阻力與塵埃反饋 4. Resistance versus Rated Airflow (clean device)阻力與額定氣流（自潔設(shè)計(jì)）,ASHRAE Dust:美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)塵埃: 72 % AC fine test dust72%A

34、C良好塵埃測(cè)試 23 % Carbon black20%黑煙末 5 % Cotton lint5%塵絮,Better Air Is Our Business,EN779 1993 方法論,First European Standard for General Air Ventilation Filters歐洲最初標(biāo)準(zhǔn)是過(guò)濾器的空氣流通 ASHRAE test has been used as basis for EN779美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)以前測(cè)試標(biāo)準(zhǔn)基本是EN779 Repelaces EUROVENT 4/5 and national standards like DIN 24

35、.185廢除歐洲4/5與國(guó)家相似標(biāo)準(zhǔn)DIN24.185 Filters with initial dust spot efficiency 20% are classified as Efficiency Filters (F5 - F9). 過(guò)濾器的最初除塵率20%是當(dāng)做過(guò)濾器分類（F5-F9） Final pressure drop is 450 Pa最終壓力下降是450Pa,Better Air Is Our Business,EN779 1993 方法論,Initial efficiency 20%,過(guò)濾器類型,粗效過(guò)濾器,高效過(guò)濾器,EN779分類,初始效率20%,平均（am ）,捕

36、捉率（%）,平均（am ）,除塵效率（%）,最終（Pa ）,Better Air Is Our Business,ASHRAE 52.2 - 1999 Methodology美國(guó)采曖，制冷與空調(diào)工程師學(xué)會(huì)52.2 - 1999 方法論,Better Air Is Our Business,EN779 2002 分級(jí),分類,表格1-空氣過(guò)濾器分類依照EN779,最終下降壓力Pa,平均捕捉（Am）綜合塵埃%,平均效率（Em）和0，4um色染%,Better Air Is Our Business,MERV versus EN-779 Table最大效率與EN779表格,Better Air Is

37、Our Business,Filter Testing: Test Rig過(guò)濾器測(cè)試：測(cè)試設(shè)備,Better Air Is Our Business,Global situation with two standards全球一致有兩個(gè)標(biāo)準(zhǔn),Two different standards:不同的標(biāo)準(zhǔn)： One for EUROPE 一個(gè)是歐洲 One for USA 一個(gè)是美國(guó) Classification system not the same, and difficult to compare分類系統(tǒng)不一樣，很難做比較 No life performance in MERV classifi

38、cation最大使用壽命分級(jí) Initiative at ISO TC117 with EN779:2002 as ISO/CD 21220主動(dòng)在ISO TC117和EN779：2002，ISO/CD21220,Better Air Is Our Business,EN1822,HEPA (High Efficiency Particulate Air Filter) and ULPA (Ultra Low Penetration Air Filters) testing and classification 高效率空氣粒子過(guò)濾器和超高效空氣粒子過(guò)濾器的測(cè)試與分類 H10-H14 HEPA f

39、ilters, U15-U17 ULPA filters H10-H14 屬高效空氣粒子過(guò)濾器， U15-U17 是超高效空氣粒子過(guò)濾器 The filter efficiency test on MPPS (Most Penetrating Particle Size) determines the Filter Classification 過(guò)濾器效率測(cè)試（最易穿透粒徑）決定過(guò)濾器的分類 Filter Efficiency Test 1.過(guò)濾器效率測(cè)試 Leak Test with smoke for the HEPA filters or automated test with part

40、icle counter for ULPA filters 2. 針對(duì)HEPA過(guò)濾器的煙低谷測(cè)試或者是針對(duì)ULPA 過(guò)濾器 2的用微粒測(cè)量器的自動(dòng)測(cè)試。,Better Air Is Our Business,Physics of the Test Procedure檢驗(yàn)過(guò)程和原理,Penetration versus Particle Size 滲透相反的微粒尺寸,99,999999,99,99999,99,9999,99,999,0,01,0,02,0,05,0,1,0,2,0,5,1,0,m,0,000001,0,00001,0,0001,0,001,E,P,1,5 cm/s,3,0 cm

41、/s,MPPS as function of media velocity for the same ULPA glass media MPPS作為同樣是ULPA玻璃介質(zhì)介質(zhì)速度的功能,Better Air Is Our Business,HEPA & ULPA Classification高效空氣粒子過(guò)濾器和超高效空氣粒子過(guò)濾器的分類,Smoke Test for H13 & H14 as Visual Scan accepted H13 和 H14公認(rèn)視覺與自動(dòng)掃描煙塵測(cè)試,AutoScan vs. Visual Smoke Test煙塵自動(dòng)掃描，視覺測(cè)試,Better Air Is Ou

42、r Business,HEPA & ULPA Classification高效空氣粒子過(guò)濾器和低效粒子空氣過(guò)濾器的分類,Overall Efficiency to EN1822 for H12 to H14全部效率EN1822 從 H12 到 H14止,Overall Efficiency with Laser-Spectrometer全部效率用激光-分光計(jì),Better Air Is Our Business,EN1822 Classification EN1822分類,Better Air Is Our Business,Ratings to EN1822EN1822額定,to EN182

43、2,Better Air Is Our Business,Fire Class Certification: UL防火體系證明：UL,UL: Underwriters Laboratories Inc. A filter can be listed in one or two categories: 過(guò)濾器能被劃分到下列兩類中： Class 1 Units體系1 Units集合 Class 2 Units體系2 Units集合,Better Air Is Our Business,Fire Class Certification: UL,Class 1 Units: 體系1 Units: 集合

44、 When clean, these filters do not contribute fuel when attacked by flame and emit only negligible amounts of smoke. The filter shall not produce flame or sparks when subjected to the Flame-Exposure Test. 清潔情況下，當(dāng)幾乎不帶煙塵的火焰襲擊過(guò)濾器，過(guò)濾器將不提供燃料；當(dāng)做火焰爆炸測(cè)試時(shí)，過(guò)濾器不會(huì)產(chǎn)生火苗或火星 Class 2 Units:體系 2 Units: 集合 When clean,

45、these filters burn moderately when attacked by flame or emit moderate amounts of smoke, or both. The filter shall not produce flame or extensive (25 or more) sparks which are sustained beyond the discharge end of the test duct when subjected to the flame-exposure test. 清潔情況下，當(dāng)幾乎不帶煙塵的火焰或者帶煙塵的火焰襲擊過(guò)濾器，

46、過(guò)濾器將適量燃燒。當(dāng)做火焰爆炸測(cè)試時(shí)，測(cè)試的放電結(jié)束后，過(guò)濾器將不會(huì)產(chǎn)生火焰或額外的(25 或者更多)火星。,Better Air Is Our Business,Fire Class Certification: 防火體系證明,French Fire Class Certification: 法國(guó)防火體系證明： This certification only applies to the media, not the filter itself 這個(gè)證明是唯一應(yīng)用于過(guò)濾器防火級(jí)別的標(biāo)準(zhǔn)。 M1 M2 M3,Better Air Is Our Business,Installation, Op

47、eration and Maintenance Training 安裝,操作和維護(hù),Better Air Is Our Business,Installation of Built Up Filter Banks組合式過(guò)濾器組的安裝,Composed of individual holding frames調(diào)整好每個(gè)外框 Frames are attached to one another to form a bank to fit the space根據(jù)空間的大小將框架相互連接到一起 Frames are attached cia fasteners which are usually po

48、p rivets框架用扣件連接到一起,通常是波普鉚釘. Fitler bank is installed inside the plenum of duct section過(guò)濾器組安裝在導(dǎo)氣組件充氣部分的內(nèi)側(cè). Correct sizing of the cross sectional dimensions of the plenum/duct section is necessary 必須正確測(cè)量充氣/導(dǎo)氣組件的連接尺寸. System has to be properly levelled and plump 系統(tǒng)必須正確水平并充氣. Plenum or duct section has

49、to be free of dirt 充氣和導(dǎo)氣部分必須沒有雜質(zhì).,Better Air Is Our Business,Built-up Filter Bank組合式過(guò)濾器組,Better Air Is Our Business,Fastening Frames Together in Built-Up Filter Bank將框架和組合式過(guò)濾器組固定到一起,Filter frames are locked together using blind rivets 用空心鉚釘將過(guò)濾器框架連接到一起. Holding frames are usually pre punched to insta

50、ll the fasteners 外框通常都為方便連接已經(jīng)打孔.,Better Air Is Our Business,2至4英寸過(guò)濾器外框的連接組合,小的過(guò)濾器框可以先在一個(gè)平面上放在一起,然后移裝到它們的永久安裝位置上 大的裝置可以分開制造,然后作為小部件組裝,最后移到安裝位置. 大的過(guò)濾器組通常用硬棒在邊框兩條對(duì)邊見進(jìn)行加固. 裂紋和小的縫隙可以被嵌填. 大的開口可以用特制的金屬條補(bǔ)好.,Better Air Is Our Business,Assembling Banks of Holding Frames 4 inch Deep外框厚度大于4英寸的組件組裝,Assembly and

51、installation usually takes place at the site where the bank is to be installed 組合和安裝通常在組件應(yīng)該被安裝的地方進(jìn)行. Bank is built up row by row 邊緣一排排地連到一起. Minor cracks can be caulked 小的裂縫可以被嵌填. Larger openings can be closed by using custom made metal filter pieces 大的開口可以用特制的金屬條補(bǔ)好.,Better Air Is Our Business,V-Ban

52、k Filter ArrangementsV形過(guò)濾器組的安裝,Designed to handle a larger air capacity, typically 2,5 m/s 設(shè)計(jì)用于高風(fēng)量,例如2.5m/s The introduction of filters which can handle a higher face capacity eliminated the need for most V-bank arrangements 可以用適合高風(fēng)量下工作的過(guò)濾器替代V形過(guò)濾器組 Some filters because of their in-line depth cannot

53、be installed in V-banks 某些過(guò)濾器由于嵌入厚度不能在V形組件中安裝,Better Air Is Our Business,平展濾料過(guò)濾系統(tǒng),特制的平展形濾料被垂直安裝在特殊的固定框架上 濾料必須被很好地安裝在固定框架上,以防當(dāng)HVAC系統(tǒng)打開時(shí)濾料松垂. 所用濾料通常是合成纖維或者置于金屬框中,以便安裝到框架中. 采用合成纖維主要是因?yàn)樗诎惭b和移動(dòng)的過(guò)程中不容易被損壞 框架系統(tǒng)通常包括一個(gè)周遍密封的設(shè)備來(lái)支撐濾片并防止側(cè)漏 有時(shí)作為其他過(guò)濾器組的前置過(guò)濾器使用,Better Air Is Our Business,壓降測(cè)量設(shè)備,每個(gè)過(guò)濾器組必須有它自己的壓降測(cè)量裝置

54、風(fēng)機(jī)的選擇,風(fēng)機(jī)的轉(zhuǎn)速,風(fēng)機(jī)的馬達(dá),取決于氣流量和風(fēng)機(jī)面臨的阻力:過(guò)濾器組就是阻力之一 隨著灰塵在過(guò)濾器上堆積,過(guò)濾器的壓降增大. 當(dāng)某個(gè)時(shí)間過(guò)濾器的停用壓降達(dá)到時(shí),就必須對(duì)過(guò)濾器進(jìn)行更換了.,Better Air Is Our Business,壓降是判斷過(guò)濾器狀態(tài)的最好方法,當(dāng)壓降上升時(shí)，系統(tǒng)鼓風(fēng)機(jī)需要更大的功率將空氣吹過(guò)過(guò)濾器,這就增加了能耗和成本. 當(dāng)壓降到達(dá)某個(gè)點(diǎn),初效和中效過(guò)濾器會(huì)由于濾料上的灰塵散落,導(dǎo)致過(guò)濾效率開始下降. 散落開始的壓降是過(guò)濾器已經(jīng)達(dá)到它的停用壓降并應(yīng)該更換的信號(hào). 然而,其他機(jī)械式過(guò)濾器的效率會(huì)隨著壓降繼續(xù)上升. 壓降是決定過(guò)濾器是否應(yīng)該更換的測(cè)量指標(biāo),因?yàn)閴?/p>

55、降對(duì)系統(tǒng)的氣流產(chǎn)生影響.,Better Air Is Our Business,First Rule: Pre-Check Filters and Filter Banks第一條:預(yù)先檢查過(guò)濾器和過(guò)濾器組,Check Filter Holding Frames檢查過(guò)濾器固定框 Are they rigid enough?它們是否牢固? Have all fasteners been installed and secured?是否所有的鎖扣都已經(jīng)安裝并鎖緊. Are all the frame channels clean?所有的框架溝槽已經(jīng)清潔? Are the gaskets in tac

56、t?墊片是否到位? Are the proper quantity of fasteners and sealing mechanisms installed?是否安裝有合適數(shù)量的鎖扣和密封件? Have all the leaks and cracks between the holding frames and the plenum been caulked or closed? 固定框和實(shí)體上的所有漏點(diǎn)和裂縫是否已經(jīng)被填充和封閉?,Better Air Is Our Business,Filter Fasteners 過(guò)濾器鎖扣,Better Air Is Our Business,Clean Installation (潔凈安裝),Better Air Is Our Business,平板過(guò)濾器的安裝,安裝前檢查過(guò)濾器尺寸是否適合固定框 參考邊框或標(biāo)簽上的方向箭頭,將過(guò)濾器安裝到它們的固定框中 過(guò)濾器上的方向箭頭表示系統(tǒng)的氣流方向 打開所有的固定件 將過(guò)濾器裝入框中,并關(guān)閉鎖扣將其固定,Better Air Is Our Business,Inst