橫式采樣器 泥沙取樣器 河道取沙儀 水中含沙量檢測儀
型號：G81414
含沙量測驗，一般需要采樣器從水流中采取水樣。我國目前使用較多的采樣器有橫式采樣器。不論用何種方式取得的水樣，都要經(jīng)過量積、沉淀、過濾、烘干、稱重等手續(xù)，才能得出一定體積渾水中的干沙重量。
本采樣器有擊式、拉式，遙控三種方式，價格也有較大差別。。
懸移質(zhì)采樣器 是用以采集河流懸移質(zhì)水樣的儀器。常用的有瞬時式和積時式兩類。①瞬時式采樣器，主要是橫式采樣器（圖1）。取樣筒由薄壁鋼管制成，容積0.5～2.0升，兩端有蓋，蓋緣裝有拉力彈簧。采樣時，張開筒蓋，水流從筒中流過，然后操縱開關，借彈簧拉力將筒蓋關閉，采集水樣。這種儀器結(jié)構(gòu)簡單，適用范圍廣。缺點是受泥沙脈動影響嚴
重，單點取樣成果的代表性差。②積時式采樣器，有積點式和積深式兩種。積點式采樣器是在測點上吸取水樣，測定某一時段內(nèi)平均含沙量的儀器，器內(nèi)有水樣倉和調(diào)壓倉，兩者用連通管連接，儀器入水后，調(diào)壓倉內(nèi)進水，空氣受壓縮使采樣器內(nèi)外靜水壓力相平衡，以保持儀器取樣時進水管內(nèi)流速與天然流速*。積深式采樣器是一種沿垂線連續(xù)吸取水樣，測定垂線平均含沙量的儀器，適用于淺水河流取樣。取樣時，要求儀器提放速度均勻并小于垂線平均流速的三分之一。
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The sampler sampler river sand instrument of sediment concentration in water detector
Model: G81414
Sediment concentration measurement, generally need to take water samples from the water sampler. Our country is the use of more sampler with horizontal sampler. No matter how water samples obtained, must pass through the product, precipitation, filtration, drying, weighing procedures, in order to obtain the weight of dry sand volume in muddy water.
The sampler has a hammer type, pull type, remote control in three ways, prices are also different. Welcome to call.
Suspended sediment sampler is used to acquisition instrument with suspended sediment samples. Commonly used are instantaneous and time accumulating two. The instantaneous sampler, the sampler is mainly (Figure 1). The sampling tube is made of thin steel tube, the volume of 0.5 to 2 liters, both ends of cover, the cover edge is provided with a tension spring. When sampling, open the cylinder cover, water flows from the barrel, and then control switch, the spring tension will cover closed, collecting water samples. The instrument has the advantages of simple structure, wide application range. Shortcomings by sediment fluctuation influence
Heavy, poor representation of single point sampling results. The time integrating sampler, a point type and depth integration type two. Point sampler is at the measuring point on the absorbing water, measuring the average sediment concentration in a certain period, which is a water chamber and the pressure chamber, connected with the communicating pipe, the instrument enters the water, pressure regulating chamber inlet, air compression of the sampler and hydrostatic pressure equilibrium, in order to maintain the sampling instrument when the water inlet pipe flow and natural flow consistent. Product depth sampler is a vertical continuous absorbing water, instrument for measuring average sediment vertical weight, applicable to shallow water stream sampling. When sampling, instrumentation requirements put uniform speed and less than 1/3 of the average vertical velocity.
For more on horizontal sampler sampler river sand instrument of sediment concentration in water detector, please call the Advisory
