Reverse osmosis scale inhibition dynamic evaluation instrument and evaluation method thereof

The invention discloses a reverse osmosis scale inhibition dynamic evaluation instrument, which comprises a pump, a PP cotton filter, a filter, an ultra-filtration device, a first pressure gauge, a first flow meter, a reverse osmosis device, a second pressure gauge, a second flow meter, a third flow meter and an external water groove, wherein the pump is sequentially connected to the PP cotton filter, the filter, the ultra-filtration device and the first flow meter through a water inlet pipe, the first pressure gauge and a valve are arranged between the ultra-filtration device and the first flow meter, the first flow meter is connected to the reverse osmosis device through the water inlet pipe, the output end of the reverse osmosis device is respectively connected to one end of a production water pipe and one end of a concentrated water pipe, the second pressure gauge is arranged on the concentrated water pipe, and the other ends of the production water pipe and the concentrated waterpipe are provided with the external water groove. According to the present invention, the scale inhibition dynamic evaluation instrument fills the laboratory-level evaluation blank, can accurately simulate the on-site process conditions, has important guiding significance in the evaluation of the performance of scale inhibitor products, has high accuracy and small occupation area, and can save a lot of water resources.