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　　First of all, we can see the cleanliness test process of ventilation duct after cleaning. First, we should clean the surface dust volume of ventilation duct of central air-conditioning ventilation system. These samples should be cleaned within seven days after cleaning the ventilation duct. After cleaning, the main air ducts such as supply duct, return duct and fresh duct of each set of central air conditioning ventilation duct are determined, and at least five representative sampling points are selected. The sample material is dried in a 105C thermostat for 2 hours, then cooled in a dryer for 4 hours, or stored in a dryer for 24 hours. The initial weight was measured with a balance in a sealed bag. Determine the sampling area of the sampling position of the ventilation duct and remove all residual dust on the wall of the inner duct.

　　另一個(gè)是要掌握通風(fēng)管道污染檢測(cè)的步驟:首先，在清洗空調(diào)通風(fēng)系統(tǒng)風(fēng)管表面積風(fēng)量之前。在每個(gè)空調(diào)和通風(fēng)系統(tǒng)的通風(fēng)管道上選擇至少5個(gè)具有代表性的采樣點(diǎn)(如新風(fēng)、送風(fēng)和回風(fēng)風(fēng)道)進(jìn)行確定和測(cè)試;如果在主通風(fēng)管道內(nèi)無(wú)法采樣，可以提取不少于5個(gè)采樣點(diǎn)。在對(duì)主通風(fēng)管道取樣時(shí)，打開(kāi)維護(hù)孔、清洗孔或現(xiàn)場(chǎng)孔。取樣時(shí)將風(fēng)口從送風(fēng)口移開(kāi)。采樣時(shí)應(yīng)將風(fēng)管表面的灰塵全部收集起來(lái)，并在規(guī)定的區(qū)域內(nèi)完好無(wú)損地取出風(fēng)管。

　　Another is to grasp the steps of ventilation pipe pollution detection: first, before cleaning the surface area of air duct of central air conditioning ventilation system. At least five representative sampling points (such as fresh air, supply air and return air duct) are selected for determination and testing in the ventilation ducts of each central air conditioning and ventilation system. If sampling is not possible in the main ventilation duct, no less than five sampling points can be extracted. When sampling the main ventilation pipe, open the maintenance hole, cleaning hole or site hole. Remove the tuyere from the supply tuyere when sampling. The dust on the surface of the air duct should be collected when sampling, and the air duct should be removed intact in the prescribed area.

　　現(xiàn)在，隨著城市的發(fā)展，越來(lái)越多的高層建筑出現(xiàn)在每個(gè)城市，尤其是在這個(gè)城市越來(lái)越多的高層建筑，我們走在街上，到處都可以看到高層建筑，而這些高層建筑大多都裝有空調(diào)。事實(shí)上，這些高層建筑內(nèi)的空氣是通過(guò)通風(fēng)管道輸送的。隨著人們對(duì)健康的追求和對(duì)空氣質(zhì)量的要求的提高，空調(diào)通風(fēng)管道清洗的重要性將逐步提高。

　　Now, with the development of the city, more and more high-rise buildings appear in every city, especially in this city, more and more high-rise buildings, we can see high-rise buildings everywhere on the street, and most of these high-rise buildings are equipped with air conditioning. In fact, the air in these high-rise buildings is transported through ventilation ducts. With people's pursuit of health and the improvement of air quality requirements, the importance of air conditioning ventilation duct cleaning will gradually increase.

　　所以在清洗行業(yè),對(duì)通風(fēng)管道清洗行業(yè),隨著意識(shí)的提高,將有一個(gè)良好的發(fā)展,在未來(lái)5到10年也是一個(gè)發(fā)展高峰,但你也要看到由于建筑通風(fēng)系統(tǒng)的復(fù)雜性,也很難清洗,所以企業(yè)和事業(yè)單位的需求有這樣的順序，在選擇通風(fēng)管道清洗企業(yè)的時(shí)候也要選擇一些比較正規(guī)的店鋪，這樣才能達(dá)到以上的質(zhì)量和效果。

　　So in the cleaning industry, the ventilation duct cleaning industry, with the improvement of awareness, will have a good development, in the next five to 10 years is also a development peak, but you also have to see that because of the complexity of the building ventilation system, it is difficult to clean, so the needs of enterprises and institutions have this order, in the selection of ventilation duct cleaning. Enterprises should also choose some more formal shops, so as to achieve the above quality and effect.