山東通風(fēng)管道出現(xiàn)腐蝕的原因是什么

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　　山東通風(fēng)管道如果其出現(xiàn)腐蝕現(xiàn)象的話，那么其原因是什么呢？其有什么危害呢？

　　If there is corrosion in Shandong ventilation pipeline, what is the reason? What harm does it do?

　　風(fēng)管出現(xiàn)腐蝕現(xiàn)象，其具體的表面，一般來(lái)講主要有以下這些，為：

　　Generally speaking, there are the following main corrosion phenomena on the concrete surface of the duct: corrosion of the duct, corrosion of the duct, corrosion of the duct, corrosion of the duct, corrosion of the duct, corrosion of the duct, corrosion of the duct, and corrosion of the duct

　　表現(xiàn)一：風(fēng)管表面出現(xiàn)一些缺陷問(wèn)題，比如擦毛、雜物等。

　　Performance 1: There are some defects on the surface of the air duct, such as brushing, debris and so on.

　　表面二：在焊縫表面，其顏色是呈黑色的，或者是有黃斑或花斑。

　　Surface 2: In the weld surface, its color is black, or there are macula or spots.

　　表面三：風(fēng)管的局部出現(xiàn)銹蝕。

　　Surface 3: Local corrosion of air duct.

　　這三種情況，其腐蝕程度是越來(lái)越嚴(yán)重，一旦出現(xiàn)該問(wèn)題的話，則會(huì)降低其抗腐蝕能力，縮短其使用壽命。對(duì)于通風(fēng)系統(tǒng)來(lái)講，則會(huì)降低其嚴(yán)密性，所以它的危害是不容小覷的。

　　In these three cases, the corrosion degree is becoming more and more serious. Once this problem occurs, it will reduce its corrosion resistance and shorten its service life. For the ventilation system, it will reduce its tightness, so its harm can not be underestimated.

　　風(fēng)管出現(xiàn)腐蝕，其主要原因，一般有以下這些，為：

　　The main reasons for the corrosion of air ducts are as follows:

　　(1)風(fēng)管所使用的板材，其下料或加工方式方法不當(dāng)。

　　(1) The blanking or processing method of the sheet used in the air duct is inappropriate.

　　(2)風(fēng)管在加工制造過(guò)程中，就出現(xiàn)了腐蝕現(xiàn)象，但并沒有及時(shí)進(jìn)行處理。

　　(2) In the process of manufacture, the corrosion of air duct occurs, but it is not treated in time.

　　(3)風(fēng)管的焊接方法沒有選擇正確，也就是焊接方法不當(dāng)。

　　(3) The welding method of air duct has not been chosen correctly, that is, the welding method is improper.

　　(4)風(fēng)管焊接好以后，沒有及時(shí)進(jìn)行清潔和清理，就進(jìn)行后續(xù)處理了。

　　(4) After the air duct is welded, it is not cleaned and cleaned in time, so the follow-up treatment is carried out.

　　山東通風(fēng)管道安裝時(shí)有哪些注意事項(xiàng)

　　What matters needing attention in installation of ventilation pipes in Shandong Province

　　1、風(fēng)管成品應(yīng)按系統(tǒng)編號(hào)碼放整齊，搬運(yùn)、裝卸應(yīng)輕拿輕放，防止損壞。

　　1. The finished products of air duct should be placed neatly according to the system number. Handling and handling should be handled lightly to prevent damage.

　　2、交叉作業(yè)較多加工程，嚴(yán)禁以安裝完的風(fēng)管作為支、吊、托架，不允許將其它 支、吊架焊在或掛在風(fēng)管法蘭和風(fēng)管支、吊架上，更不能在風(fēng)管上站人。

　　2. There are many cross-working processes. It is strictly forbidden to use installed air ducts as supports, hangers and brackets. It is not allowed to weld or hang other branches and hangers on air duct flanges, air duct supports and hangers, let alone stand on air ducts.

　　a.本工程風(fēng)管系統(tǒng)主要有多葉調(diào)節(jié)閥、蝶閥、防火防排煙閥等各類風(fēng)閥，在安裝前應(yīng)檢查框架結(jié)構(gòu)是否牢固，調(diào)節(jié)、制動(dòng)、定位等裝置應(yīng)準(zhǔn)確靈活。

　　A. The main air duct systems in this project are multi-leaf regulating valves, butterfly valves, fire prevention and smoke exhaust valves and other kinds of air valves. Before installation, it is necessary to check whether the frame structure is firm, and the adjusting, braking and positioning devices should be accurate and flexible.

　　b.根據(jù)風(fēng)管法蘭螺桂孔尺寸在風(fēng)閥的法蘭上打孔。

　　B. Punch holes on the flange of the air valve according to the size of the air pipe flange screw.

　　c.風(fēng)閥的安裝與風(fēng)管相同，在安裝時(shí)只要把閥的法蘭與風(fēng)管或設(shè)備上的法蘭對(duì)正，加上密封墊上緊螺絲，使其連接牢固及緊密即可。

　　C. The installation of the air valve is the same as that of the air duct. During installation, the flange of the valve should be aligned with the flange of the air duct or equipment, and the tightening screw on the sealing gasket should be added to make the connection firm and tight.

　　d.應(yīng)注意風(fēng)閥安裝部位，使閥件的操縱位置便于操作。

　　D. Attention should be paid to the installation position of the air valve so as to facilitate the operation of the valve parts.

　　e.安裝時(shí)要注意風(fēng)閥的氣流方向，不得裝反，應(yīng)按風(fēng)閥外殼標(biāo)注的方向安裝。

　　E. Attention should be paid to the airflow direction of the air valve during installation. It should not be reversed. It should be installed in the direction marked by the air valve shell.

　　f.防火閥是通風(fēng)系統(tǒng)的裝置，要保證在火災(zāi)時(shí)起到關(guān)閉和停機(jī)的作用。防火閥有水平、垂直、左式和右式之分，定貨和安裝時(shí)應(yīng)根據(jù)設(shè)計(jì)要求進(jìn)行，防火閥有水平、垂直、左式和右式之分，定貨和安裝時(shí)應(yīng)根據(jù)設(shè)計(jì)要求進(jìn)行，防止弄錯(cuò)。為防止防火閥易熔片脫落，易熔片應(yīng)在系統(tǒng)安裝后，系統(tǒng)試運(yùn)轉(zhuǎn)之前再行安裝。

　　F. Fire-proof valve is the safety device of ventilation system. It is necessary to ensure that it can shut down and shut down in case of fire. Fire valves are divided into horizontal, vertical, left and right types. Order and installation should be carried out according to the design requirements. Fire valves can be divided into horizontal, vertical, left and right types. Order and installation should be carried out according to the design requirements to prevent mistakes. In order to prevent the fusible sheet from falling off, the fusible sheet should be installed after the system is installed and before the system is commissioned.

　　g.為了方便更換和檢查防火閥的易熔片，還應(yīng)根據(jù)設(shè)計(jì)，在靠近防火閥的風(fēng)管段上設(shè)置檢查門。

　　G. In order to replace and inspect the fusible sheet of the fire valve conveniently, an inspection door should be set on the air duct section near the fire valve according to the design.