螺旋風管的漏光內容檢測

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有些行業(yè)只是單純的需要螺旋風管達到排風，轉換空氣的功能，但是有些行業(yè)如在機房、地下室、機械工程、采礦通風設備、消防排煙等惡劣工作環(huán) 境下的送風及排氣、集除煙塵之用、耐高溫及排風，要是以前的風管在使用上就不太可能實現(xiàn)這個效果，這種風管是具有很好的抗強酸及堿，良好的抗化學性，攜帶方便，耐油酸且阻燃；

Some industries simply need spiral air ducts to exhaust and convert air, but some industries, such as air supply and exhaust, smoke collection and dust removal, high temperature resistance and exhaust in harsh working environments such as machine rooms, basements, mechanical engineering, mining ventilation equipment, fire control and smoke exhaust, are unlikely to achieve this effect if the previous air ducts are used. This kind of air duct has good resistance to strong acid and alkali, Good chemical resistance, easy to carry, oleic acid resistance and flame retardant;

任意彎曲半徑約等于外徑，可排靜電、螺旋絲接地，給安裝時候帶來很大的方便。空氣一直都是我們人類所須呼吸的氣體，要是你在一個密封的情況下要是沒有進行空氣的流通運輸，那么就會出現(xiàn)窒息的可能性，所以現(xiàn)在很多人在空氣不好的地方都安裝通風管道。

The arbitrary bending radius is about equal to the outer diameter, which can discharge static electricity and screw wire grounding, bringing great convenience to installation. Air has always been the gas we humans need to breathe. If you do not carry out air circulation and transportation under a sealed condition, there will be the possibility of suffocation, so many people now install ventilation pipes in places with bad air.

漏光法檢測是采用光線對小孔的強透視力，對系統(tǒng)螺旋風管嚴密程度進行定性檢測的方法。其試驗方法是在一定長度的螺旋風管上，在黑暗的環(huán)境下，在螺旋風管內用一個電壓不高于36V、功率在100W以上的帶保護罩的燈泡，從螺旋風管的一端緩緩移向另一端，試驗時若在螺旋風管外能觀察到光線，則說明螺旋風管有漏點，并對螺旋風管的漏風處進行修補。

The light leakage method is a qualitative method to detect the tightness of the spiral air duct of the system by using the strong penetration of light to the small hole. The test method is to use a bulb with a protective cover with a voltage of not more than 36V and a power of more than 100W to move slowly from one end of the spiral air duct to the other end on a certain length of spiral air duct in a dark environment. If light can be observed outside the spiral air duct during the test, it indicates that there is a leak point in the spiral air duct, and repair the leak point of the spiral air duct.

系統(tǒng)螺旋風管的漏光法檢測采用分段檢測、匯總分析的方法，被測系統(tǒng)的螺旋風管不允許有多處條縫形的明顯漏光，低壓系統(tǒng)螺旋風管每10米接縫，漏光點不超過2處，100米接縫平均不大于16處;中壓系統(tǒng)螺旋風管每10接縫，漏光點不超過1處，100米接縫平均不大于8處為合格。

The light leakage method of the spiral air duct of the system adopts the method of subsection detection and summary analysis. The spiral air duct of the tested system is not allowed to have multiple slit-shaped obvious light leakage. The light leakage point of the spiral air duct of the low pressure system is not more than 2 every 10 meters, and the average of the 100 meters joints is not more than 16; The spiral air duct of the medium pressure system is qualified if the light leakage point is not more than 1 for every 10 joints and the average number of 100 m joints is not more than 8.

螺旋風管市場上按材質一般分為三類：鍍鋅螺旋風管、不銹鋼螺旋風管以及復合螺旋風管。其中，不銹鋼風管質量好，適用性強，但高。目前市場流通廣的螺旋風管是鍍鋅板的。鍍鋅板螺旋風管，基本是不銹鋼螺旋風管的特性。

The spiral duct is generally divided into three categories according to the material in the market: galvanized spiral duct, stainless steel spiral duct and composite spiral duct. Among them, the stainless steel air duct has good quality, strong applicability, but high price. At present, the spiral air duct widely circulated in the market is galvanized sheet. Galvanized sheet spiral duct is basically the characteristic of stainless steel spiral duct.